METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
METHOD STATEMENT
FOR LAND DEVELOPMENT #3
(PVD AND PHD, MONITORING)
0
10th Dec 2018
Tender document
Rev.
Date
Description
Prepared by
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
Checked by
Approved by
1
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
CONTENTS
PART I: PROJECT INTRODUCTION ................................................................................................. 4
I. PROJECT INFORMATION ............................................................................................... 4
II. PROJECT OBJECTIVIES.................................................................................................. 6
III. PLANNING AND EARLY ACTIVITIES ............................................................................ 9
PART II: CONSTRUCTION ORGANIZATION METHOD .............................................................. 10
I.CONSTRUCTION PREPARATION..................................................................................... 10
1.Clearing and receiving handover of site, benchmark ............................................................... 10
2.Prepare temporary house ..................................................................................................... 10
3.Preparing machines, equipments, transports and materials ....................................................... 10
IV. PREPARING OF ORGANIZATION................................................................................. 10
1. Material supply organization ............................................................................................... 11
2. Material storage organization .............................................................................................. 11
3. Organize the transportation ................................................................................................. 11
4. Construction mobilizing organization................................................................................... 11
PART III: SOFT SOIL TREATMENT ................................................................................................ 12
I. PROCEDURE OF CONSTRUCTION ............................................................................... 12
II. Install Prefabricated Vertical Drain (PVD) ......................................................................... 12
2.1. Procedure....................................................................................................................... 12
2.2. Materials ....................................................................................................................... 14
2.3. Equipment (Rig) ............................................................................................................. 15
2.4. Quality Control............................................................................................................... 17
III. INSTALL PREFABRICATED HORIZONTAL DRAIN (PHD) ............................................ 20
3.1 Material .......................................................................................................................... 20
3.2 Insallation prefabricated horizontal drain (SB-Type 200x8mm) ............................................. 20
3.2.1 Construction methods .................................................................................................... 21
3.2.2 Connection method ....................................................................................................... 23
IV.CONSTRUCTION OF SURFACE DRAINAGE SYSTEM FOR THE PROJECT .................... 24
V. INSTALLATION OF SURVEY EQUIPMENTS ................................................................. 25
5.1. Settlement measuring plate and Piezometer (Electrical), Inclinometer: .................................. 25
5.3. Construction................................................................................................................... 26
PART IV: PROJECT QUALITY CONTROL ..................................................................................... 27
I. QUALITY CONTROL PLAN .......................................................................................... 27
II. PROJECT QUALITY CONTROL PLAN ORGANIZATION .............................................. 27
III. MANAGING AND CONTROLLING MATERIAL QUALITY TO PUT IN CONSTRUCTION28
IV. QUALITY MANAGE AND CONTROL ON SITE ............................................................ 28
PART V: COMPLETION, INSPECTION, HANDING OVER AND ................................................. 29
WARRANTY OF THE PROJECT ...................................................................................................... 30
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
2
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
PART VI: TRAFFIC SAFETY ASSURANCE METHOD ................................................................. 31
I. The Contractor propose safety assurance method as follow .................................................. 31
II. Assure regular traffic during construction........................................................................... 31
III. Ensuring traffic safety in special situation .......................................................................... 32
IV. Ensure information, communication system smoothly.......................................................... 32
PART VII: SAFETY ASSURANCE METHOD FOR FIRE, EXPLOSION PROTECTION,
ENVIRONMENT HYGIENCE, SAFETY .......................................................................................... 33
I. EXPLOSION PROTECTION ........................................................................................... 33
1.1 General requirements ....................................................................................................... 33
1.2 Implementation ............................................................................................................... 33
1.3 Urgent contact number ..................................................................................................... 33
II. WORKING SAFETY ...................................................................................................... 34
2.1 General requirements ....................................................................................................... 34
2.2 Implemetation ................................................................................................................. 34
2.3 Environment Sanitary....................................................................................................... 36
2.3.1 General requirements..................................................................................................... 36
2.3.2 Implementation ............................................................................................................. 36
2.3.3 Method to redure air pollution ........................................................................................ 36
2.3.4 Method to reduce dust for resident area along the road in road exploiting stage..................... 37
2.3.5 Environment monitoring and supervising ......................................................................... 37
2.3.6 Conclusion and recommendation .................................................................................... 38
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
3
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
PART I: PROJECT INTRODUCTION
I. PROJECT INFORMATION
1. Client
- Long Son Petrochemical Co., Ltd, a registered company in Viet Nam, has been jointly established
by the Vietnamese parties comprising Vietnam Oil and Gas Group (PetrolVietnam) and Vietnam
National Chemical Corporation (Vinachem) and the Thailand’s SCG subsidiaries of Vina SCG
Chemical Company Limited (VSCG Chem) and Thai Plastic and Chemicals Public Company
Limited (TPC) with the objective of planning, developing, constructing, and operating the first
integrated petrochemical complex.
2. Location
- The Complex is located in Long Son Island, which is Northwest of Vung Tau City, Ba Ria Vung
Tau Province. The Construction Site is 100km far away 100km from Ho Chi Minh City and 30km
away from Vung Tau City. Long Son Peninsula is currently a commune of Vung Tau City with
geographical connections as described below:
+ North: contiguous to Hoi Bai and Long Huong Communes, separated by Ba Nanh River.
+ South: contiguous to Ganh Ray Bay.
+ East: contiguous to Go Gang (belong to Long Son Commune), separated by Cha Va River.
+ West: contiguous to Phuoc Hoa commune, separated by Ong Ben canal.
Location Map
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
Vicinity Map
4
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
Location Map
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
5
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
II. PROJECT OBJECTIVIES
1. Project objectivities
- Site preparation for next construction stage of LSP Complex.
- Complete site preparation work form commencement day.
2. Scope of work
- Preparation of the Site.
- Obtain all required construction permits in support of works, including construction permit, sand
filling permit etc.
- Construct temporary facilities, including site office, access road, temporary fence, etc…
- Construct temporary dike to protect the low lying areas from seawater intrusion.
3. Items of Complex
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
6
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
Table 1: Summary Items of Complex
No.
Description
Unit
Q'ty
m
1,877,406
m
162,124
m
3,783
set
37
□ PVD, PHD & Drainage Work
1
2
3
4
PVD (Prefabricated Vertical Drain) installation
- The unit price include material and installation cost.
- Material requirment should follow Land development
specification(Doc.No.TF-2R02-0013)
(ex: discharge capacity over 500m3/yr at 200kpa)
- The unit price include temporary road, dewatering and maintenance.
-The unit price include loss rate of material.
- The quantity shall be calculated by net quantity of drawings.
PHD (Prefabricated Horizontal Drain) installation
- PHD size: 200mmX8mm
- Material requirment should follow Land development
specification(Doc.No.TF-2R02-0013)
(ex: discharge capacity over 2*10-4m3/s at 100kpa)
- The unit price include material and installation cost.
-The unit price include loss rate of material.
- The quantity shall be calculated by net quantity of drawings.
Gravel Ditch (top width 0.8m, bottom width 0.4m, depth 0.4m)
- The unit price include excavation and transportation outside designated
area.
- The unit price include gravel, non woven geotextile(12kN/m) / gravel
size 2~7cm
- The unit price includes material supply and installation in excavated
ditch.
- The unit price include loss rate of material.
- Refer to Detail drawings(No. TF1-2K19-0026, Section-3)
Sump Well
- The unit price include excavation and transportation outside designated
area
- The unit price include supply & installation of PVC pipe D500, hose,
drain pipe and
cable with material cost.
- Making hole and wrapped by non-woven geotextile as drawings
- The unit price include supply and installation of back fill by gravel
2~7cm, k=0.9
- The unit price include supply, installation and operation of submerged
pump
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
7
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
(capacity at least 10m3/h) with generator
- The unit price include pumping & discharge work from sump well to
near sea-side, pond area of outside, tempoary drainage ditch or outside
designated area considering site condition.
- Refer to Detail drawings(No. TF1-2K19-0026~0029)
5
Excavation (tempoary drain ditch)
- The unit price is inclusive of soil transport to designated area and
levelling .
- The unit price is inclusive of grading & compaction
- The unit price includes maintanance cost
- Quantity can be changed depend on site work condition.
- Refer to Detail drawings(No. TF1-2K19-0027, Section-1)
m3
1,471
set
130
set
24
set
3
set
20
□ Mornitoring Work
7
8
9
10
Surface Settlement Plate
- Installation method should follow Land development specification
(Doc.No.TF-2R02-0013)
- The unit prIce include all related labor and material cost mentioned in
DWG.
with generator if necessary.
- The unit price exclude mornitoring cost.
Piezometer (Electrical)
- Installation method should follow Land development specification
(Doc.No.TF-2R02-0013)
- The unit prIce include all related labor and material cost mentioned in
DWG.
with generator if necessary.
- The unit price exclude mornitoring cost.
Inclinometer
- Installation method should follow Land development specification
(Doc.No.TF-2R02-0013)
- The unit prIce include all related labor and material cost mentioned in
DWG.
with generator if necessary.
- The unit price exclude mornitoring cost.
Ground water observation well
- Installation method should follow Land development specification
(Doc.No.TF-2R02-0013)
- The unit prIce include all related labor and material cost mentioned in
DWG.
with generator if necessary.
- The unit price exclude mornitoring cost.
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
8
METHOD STATEMENT
11
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
Monitoring Record (soil improvement area) during Monitoring
Period.
- Mornitoring method & frequency should follow Land development
specification
(Doc.No.TF-2R02-0013)
- The unit price include mornitoring & issueing report periodically
follow spec.
- Monitoring scope: surface settlement, Piezometer,Inclinometer,Ground
water
observation well
lot
1
III. PLANNING AND EARLY ACTIVITIES
- For execution LSP Complex Project, the Contractor has to do preparation work to finish Project intime. Site preparation, construction permit, sand pumping permit, other documentation to submit and
finally Mobilization work, etc.
Table : Planning and early activities
Planning and early activities
Work Item
Construction Permit
Work permit
Electricity transfer line
Water line
Temporary
facilities
Construction road
Site office preparation
Manpower
Certificate
and License
Equipment License and
Documentation Calibration
using
for
to
Submit Materials
project
(QA/QC
Documents)
QA/QC Documents
Safety and Environment
Plan
Other Documents
Manpower
Mobilization
Equipment
Temporary facilities
Finish date
Remarks
Description
For execution LSP
Complex project
For foreigner (if any) For
construction
activities
Site
chart
organization
Submit
execution
before
-
House,
accommodation, etc.
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
-
9
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
PART II: CONSTRUCTION ORGANIZATION METHOD
I. CONSTRUCTION PREPARATION
1. Clearing and receiving handover of site, benchmark
- Receive handover of site, pile hearts, benchmarks of the construction area and send pile hearts,
benchmarks out of construction area, responsible for storing pile hearts, benchmarks throughout
the construction period.
- Restoring the route, checking and comparing between reality and drawing.
2. Prepare temporary house
- Through local authorities to create favorable conditions for the construction work.
- Build temporart house at appropriate places on the route to create favorable conditions for
mobilizing manpower and machines for construction. Staff house and operation offices usually
place by the main wind direction, materials and equipments are place at the end of main wind
direction.
- Build houses for workers, staff.
- Office for Site Management Board and Construction Teams.
- Material warehouse.
- Prefabricated concrete component producing house, machines and trucks repair stations.
- Providing electricity and water for the construction site.
- Make a list of temporary staff at site and register to local authority.
3. Preparing machines, equipments, transports and materials
3.1 Mobilizing equipments, construction machines, trucks
- Select the logical combination due to workload required for each work item. Move to the
construction site according to the progress of construction items.

Motorcycle equipment:
There are also tools using for construction works such as formwork, hoes, shovels ...

Testing equipments:
- Meters:
+ Total station:
01
+ Automatic level :
01
+ Technical measures to check the vertical slope and horizontal slope of road foundation and
road surface are according to design requirements.
IV. PREPARING OF ORGANIZATION
- Based on construction plan and actual situation, the Contractor will mobilize manpower,
construction equipments and machinary from the Contractor's adjacent works to the site.
Mobilization plan and equipments will be informed to the Client and Consultant for approval. To
coordinate with local authorities to set up protection plan for the works and machinery, security
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
10
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
ensuring, fire fighting. Installing transformer substations or connecting from local substations for
using at site.
- Making detailed survey of sand and stone mines including: location, site, transport. Making
applications for permission for local authorities such as police, environmental resources
department ... in case the Contractor exploiting and crushing the stones. Taking samples for
physical test of gravel, sand, asphalt, cement and steel, as well as concrete mixture, mortar design.
Submit to Consultant for approval before construction.
1. Material supply organization
- Material supply should be regularly and continuously to ensure construction and installation
works and meet the requirements and progress of each construction item. The work is as follow:
- Determine the volume of materials used for each work item, prefabricated component.
- Receive and preserve then send to the construction location and allocate materials according to
construction progress.
- Check the implementation of material usage of the site for each work.
- For local material sources, identify locations that can be exploited.
- Closely check the quantity and quality of materials brought to the site.
2. Material storage organization
Site warehouses are built next to the place of use.
- Building storage for materials, tools, machinery and equipments.
- Material storage and finished products storage.
- Usually, directly import materials from producing place to construction place. However, if long
distance transportation does not match the need of use of the material, some material needs to be
stored. These materials are stored at the site storage then brought to use to ensure construction
progress.
3. Organize the transportation
- Estimate and determine the volume to transport to site including construction materials,
prefabricated components, equipments, fuel and goods for daily life according to the construction
progress.
- Select kind of transport and estimate the distance of transporting for each type of material to
the site according to the influence of climate and weather conditions.
- Moving materials from outside supply points to site such as gravel, sand, cement, steel, soil,
concrete uses 10T trucks and 12T trucks for transportation.
- Moving of goods within construction site depends on construction progress, arrange machinary
to suit the requirements of the works by using vehicles, trucks carrying cement or steel from the
warehouse to construction site.
4. Construction mobilizing organization
- Assigning qualified technical staff. Check the implementation of plan and schedule by daily,
check the technical preparation and supply of materials for the project to ensure that the
construction process is carried out regularly.
- Summarize construction progress on daily schedule, progress table to ensure the progress is on
the plan.
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
11
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
PART III: SOFT SOIL TREATMENT
I. PROCEDURE OF CONSTRUCTION
Mobilization of equipment,
materials
Install Prefabricated Vertical Drain
(PVD)
Install Prefabricated horizontal
Drain (PHD)
Pre-Loading Charge
(Other Package)
Monitoring
Remove soil to 2nd phase area
(Other Package)
II. Install Prefabricated Vertical Drain (PVD)
2.1. Procedure
-
Mark the points by tape measuring from the starting point by surveyors
-
Locate the rig on the marked point
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
12
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
Attach the shoe at the end of drain board which is protruded from the top through to the end of
casing
-
Penetrate up to designed depth
-
Withdraw the casing
-
Cut the drain board leaving approximately 20cm
-
Move the rig to the next point
To splice the drain board, cut the end of previous drain board at an angle and stuff it inside the
end of the new drain board, then staple them both together (splicing length at least 20cm)
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
13
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
PVD INSTALL (Illustration)
Positioning
Penetrate the casing
Cut the drain board
Install anchor plate
Pull out the casing
After installing
2.2. Materials
Prefabricated Vertical Drain:
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
14
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
The specification requirement is based on project specification, as follows:
The filtering cover made of the non-woven geo-textile has the permeable coefficient which is
3-10 times higher than the permeable coefficient of the adjacent soil is, but still prevents the small
grains from crossing. Permeability ≥10-4m/s.
-
The diameter of the hole of the filtering cage does not exceed 0.08mm.
The cover and core of the prefabricated vertical drain has to make sure that they are not broken
when bearing the stress during the process of transportation and equipment installation.
-
The prefabricated vertical drain has the mechanical and physical criteria:

Tensile strength is not less than 1,6kN.

Elongation of Grab Tensile Strength < 20%.

The capacity of water supply with the pressure of 10kN/m2 with the hydraulic gradient I=0,5:
(80 ÷ 140)x10-6 m3/sec.

The capacity of the water drainage with the pressure of 400kN/m2 with the hydraulic I=0,5:
(60 ÷ 80)x10-6 m3/sec
Anchor Plate:
Anchor plate is a piece of iron tied straps to hold PVD in the soil in the process of pull out the
casing.
Dimensions anchor plate in processing and manufacturing as follows: 100x160x0.6mm,
100x160x0.7mm.
2.3. Equipment (Rig)
Description
Unit
Machine No.1
Machine No.2
Maximum installation depth
m
38.5
38.5
Boom
Boom
Machine type
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
15
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
Operating system
Code
Hydraulic
Hydraulic
DAEWOO
DAEWOO
SOLAR 400LC-III-0098
SOLAR 450
LC-III-0052
Total length
mm
5,400
5,400
Length contact with soil
mm
4,800
4,800
Width
mm
1,200
1,200
Width contact with soil
m2
Basic machine
11.52
11.52
(4.8mx1.2mx2ea)
(4.8mx1.2mx2ea)
tone
34.3
44.5
Hydraulic cylinder
tone
-
-
Counterweight
tone
-
-
Catch hook
tone
-
5
Casing (L=38.5m)
tone
-
-
Cansing Box (L=28m)
tone
0.8
1.6
Total weight
tone
48.1
67.1
Pressure on the ground
m2
4.18
5.82
automatic record
automatic record
Management system
PVD Rig
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
16
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
Catch Hook type
Boom type
2.4. Quality Control
Location Control:
-
Check the marked point according to the drawing
-
Deviation less than 10cm
Depth Control:
-
Mark the design depth on the casing
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
17
METHOD STATEMENT
-
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
Penetrate the casing up to the design depth observing the recorder
PVD quantity supplied to each rig will be based on the install capacity and the construction
condition. The install capacity is approximately 7000m/shift/rig.
Verticality Control:
-
Tolerance less than ± 2 degree
Checking and adjusting the verticality of the mast by hydraulic control system observing the
recorder within the allowable limit
Drain Board Control:
-
Record each delivery (quantity)
-
Test every 100,000 lm during construction in accordance with the Specification.
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
18
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
19
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
III. INSTALL PREFABRICATED HORIZONTAL DRAIN (PHD)
3.1 Material
item
Test method
Standard
TCVN9355-2012
Width
ASTM D3774
200±10 mm
Thickness
ASTM D5199
8+1,5 mm
The capacity of the water drainage with the
pressure of 100kN/m2 with the hydraulic (i=0.1
m3/s)
Bearing compression
Permeability
Elogation
ASTM-D4716
>2x10-4 m3/s
ASTMD1621
≥ 250 kPa
ASTM D4491
≥ 1.4x10-4 m/s
ASTM D4595
≤ 25%
3.2 Insallation prefabricated horizontal drain (SB-Type 200x8mm)
The specification is based on the tender invitation document, as follows:

prefabricated horizontal drain SB –type 200x8mm

Horizontal Strip Drain (Horizontal Drain) is a prefabricated. Strip drain consists of a
polymeric core surrounded by a fabric filter geotextile. Strip filter fabric allows water to
pass into the core while restraining soil particles which might clog the core. Drain core
drain permits water to flow to designated drainage exits.
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
20
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
3.2.1 Construction methods

Horizontal Drain are placed at the design level , distance to the design. When the horizontal
drain is located and without any twists until construction sand layer complete.

In case of necessity to reconnect, the joining method is applied to the connecting area,
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
21
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
22
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
3.2.2 Connection method
The minimum length of 200-300mm between the two horizontal drain will be in the following
as:
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
23
METHOD STATEMENT
1.
2.
3.
4.
5.
6.
7.
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
End of roll
Cut a slot on filter
Fold filter upwards
Insert new roll into it
Align two cores
Uufold filter
Tape around connection
IV.CONSTRUCTION OF SURFACE DRAINAGE SYSTEM FOR THE PROJECT
- For construction drainage o project, the contractor uses a excavator and labor to digging a ditch
to collect water and use pumping system to drain the water
- At the end of the drainage ditch drain to water to the canal, the contractor use geotextile and
sacks of sand, wood pile for restrict water drainage to the canal.
- Using the crushed stones with the dimension of 5x7(mm).
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
24
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
Figure : The drainage system
V. INSTALLATION OF SURVEY EQUIPMENTS
5.1. Settlement measuring plate and Piezometer (Electrical), Inclinometer:
Settlement measuring plate, Piezometer (Electrical):
+Construction settlement to compare with predicted settlement;
+ Pore-water pressure dissipation;
+ Consolidation degree;
+ Back-analysis for future residual settlement;
- The settlement measuring plate is minimum 50x50cm with the sufficiently hard thickness
(≥3cm) attached with the firm measuring handle. The steel measuring handle has the diameter
which is smaller than the diameter of casing preventing the sand filling (prevent the sand from
contacting the measuring handle), cover pipe (PVC pipe) and it is not attached with the settlement
measuring plate.
- It is to use the measuring handle with the diameter ≥4cm.
- The settlement measuring plate is located on the surface of the fine grain leveling sand layer (in
the scope of the area of the settlement measuring plate with the minimum thickness of 30cm).
Inclinometer:
+ Urrounding ground displacement and stability of embankment
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
25
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
Figure : Layout of monitoring instrument
5.2. Construction
- Settlement measuring plate & Measuring handle of the horizontal movement will be installed
after finishing medium sand layer.
- Crushed stones for the water drainage layer will be placed in small sacks arranged on the
underside of the sidewall medium sand layer.
- The installation process will be closely monitored and approved by the supervisor.
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
26
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
PART IV: PROJECT QUALITY CONTROL
- The construction team with years of experience in construction, skilled workers and workers
have built many projects with special attention on the quality of construction works to ensure the
competitiveness in today market. Thanks to the policies of quality management, quality assurance,
we now have the opportunity to execute large projects on nationwide.
- We will therefore implement a quality control plan that is appropriate to the project. Our
quality control plan is set up to prevent adverse conditions of quality, so as to make it possible to
find and analyze the potential for defects and deformities in practice quickly, ensuring that the
measures can be deployed quickly and efficiently to timely handle defects occur.
- The construction management board and supervision engineers will be involved in quality
activities and will expand related people such as team leaders, construction engineers and workers
of the project.
- The quality management of construction works complies with the current construction project
quality control regulations such as:
+ Circular No. 26/2016/TT-BXD dated 26/10/2016 regulated some contents of quality
control and maintenance of construction works of the Ministry of Construction.
+ Decree No. 46/2015/ND-CP dated 12/05/2015 on quality management and maintenance of
construction works of the Government.
I. QUALITY CONTROL PLAN
- Our quality plan will include the processes and organizations necessary for producing a final
product that satisfies the requirements of the Contract. Our quality plan covers all construction
operations, both on-site and off-site process, material sample, testing, inspection and management
of all suppliers, manufacturers.
- We will implement and manage the work according to the following policies and principles:
+ The work will be in accordance with the design documents and technical requirements of
the Bidding Documents as well as the instructions of the Client and Consultant Engineer.
+ We will fully comply to any of the requirements described in the technical requirements of
the Bidding Documents.
+ We will collect more information on geological conditions, site conditions ... for more
technical solutions and construction drawings.
+ We will propose to Engineer to carry out further geological experiments if necessary to
more understand the geological conditions and design as well as the best construction plans.
+ We will set up the construction methods and progresses as well as the best construction
sequences, quality assurance, quality control and safety method for each work item.
Construction method will be applied after being approved by the Engineer for actual
application in order to bring high quality to the project.
II. PROJECT QUALITY CONTROL PLAN ORGANIZATION
- All senior staff will experience in quality management of the projects, main responsible person
will undertake extensive supervision of the whole project.
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
27
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
- Quality control person will be responsible for:
+ Developing quality handbooks for each detailed work including processes.
+ Developing testing plan and inspection plan.
+ Fully complying to technical requirements including control sellers, suppliers.
+ Detecting and repairing defects in materials and machinery as well as all nonconforming
work.
+ Maintaining quality of the whole projects especially when working with new and
complicated construction activities.
+ Keeping in the right direction the control of quality documents to check the construction
work in accordance with the technical requirements.
+ Directing the checking and monitoring to ensure quality.
+ Making sure the project is completed on schedule.
+ Using quality as a managing tool.
III. MANAGING AND
CONSTRUCTION
CONTROLLING
MATERIAL
QUALITY
TO
PUT
IN
- Before construction, we will make a list of materials and machinery on drawings and sales
contracts. Quality staff will receive this listing and will follow the list.
- Goods receiving inspection and defect detection of materials will be carried out according to
the delivery.
- Checking materials:
+ Conditions of testing materials (if any)
+ Name of manufacturer and serial number
+ Standards to be followed.
+ Materials will be checked according to the requirements of the order.
- When the quality officer determines that the materials are approved, they will be filled in the
receipt report and stored in the receipt records.
- When materials are found to be unsuitable, a report will be prepared by the quality officer as
follows:
+ Description of defects
+ Describe the quality control assessment.
+ Description of where to store.
IV.
QUALITY MANAGE AND CONTROL ON SITE
- To improve the quality of Contractor, we will apply quality control standards as described
above. We will also set up a quality management system from the management unit to the
construction unit. The quality management unit is responsible for advising the construction unit to
ensure that the construction unit will complete the work and comply with quality control standards
and construction quality also meets the technical requirements.
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
28
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
- On-site engineers are required to have abilities and experience in the assigned work, the
workers also have working certificate for the assigned job.
- On-site laboratory: The material testing center will support the quality control department
during the construction process.
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
29
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
PART V: COMPLETION, INSPECTION, HANDING OVER AND
WARRANTY OF THE PROJECT
- When completing a work item, the construction team is responsible for inviting the supervisor
to inspected the completed part to move to next construction phase.
- Hidden items must be approved by the pre-acceptance test team and retained photograghs if
necessary for inspection and handover of works after completion.
- For the subjective risks in construction, our construction team will received responsibility. The
objective risks, with the legitimate certification of the Client, in accordance with the regulations of
the Government, the Contractor will submit to the Client to consider and resolve.
- Construction completion document: Construction team shall have to set up immediately after
the construction stages. Handing to Client before the inspection of each item and after completion
of the whole project.
- After being handed over, the construction team agrees to guarantee the works according to the
contractual conditions already signed with the Client in accordance with the current regulations of
the Government.
- Comply with the regulations, inspect each completed item, obscure structure and tranffered
period work.
- Inspection, handover and warranty work must comply with the current regulations:
+ Circular No. 26/2016/TT-BXD dated 26/10/2016 regulated some contents of quality
control and maintenance of construction works of the Ministry of Construction.
+ Decree No. 46/2015/ND-CP dated 12/05/2015 on quality management and maintenance of
construction works of the Government.
- To guarantee the works in accordance with the construction and installation warranty
regulations in Decree No. 46/2015/ND-CP dated 12/05/2015 on quality control and maintenance of
conctruction works of the Government.
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
30
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
PART VI: TRAFFIC SAFETY ASSURANCE METHOD
- The regulations on traffic organization and traffic safety are complied with the Regulation on
construction of works on traffic road (Decision No.2525/2003/QD-BGTVT on 28/082003) and
Regulation on traffic safety of works within the traffic road resource (Decision No. 39/2011/QDBGTVT dated 18/05/2011, Vietnam Road Signal QCVN41: 2016.
- Main execution method is constructing entire the route, preparing under construction warning
signs at the beginning and the end of the route, lane separation, lane distribution, and traffic
regulation (if necessary) for traffic people and verhicles.
I. The Contractor propose safety assurance method as follow
- On the construction site, there will be a complete system of signs, signboards of the
construction site, signboards of one side narrow down, speed limits (227, 203b, 203c, 441 , 442a,
442b, 442c ...) according to the current road signaling regulation 22TCN 237-01.
- Working positions of motorcycles - construction equipments and workers, construction stages
shall be arranged within the boundaries separated by protection fences. Have people to guide to
ensure traffic (equipped with full band, flag, ... wearing appropriate cloth).
- At the excavation and filling sections, drainage culvert installation position, foundation pit with
signal lights at night. All signaling systems will be completed by the Contractor before
construction. It is possible to assure traffic for each work item as follows:
II. Assure regular traffic during construction
- The process of construction is to both constructing and integrating to ensure traffic on the route
so during the construction progress, the construction team will commit to implement the correct
plans, methods during the construction time to ensure traffic safety and smoothness as prescribed
and not cause damage to road traffic works, and at the same time take responsibility for the
consequences of unsafety construction.
- The contractor will be subject to inspected by the Road Administration and Traffic Inspectorate
in implementating of the regulations on ensuring road traffic safety in construction according to
the State regulations. The construction team will coordinate with the above agencies during the
implementation of the contract.
- During the construction period, the Contractor shall arrange traffic guide on the construction
site. Set barriers, signposts, signboards to one side (within construction area) and limit the speed
with reflective paint. Have safety signs when stop constructing such as signboards, flags and stone
lights at night.
- Having boards at the two ends of the road, clearly stating the name of the construction unit,
construction segment. The Site manger must have a badge, the people working on the road must
wear protective clothing as prescribed.
- Outside the construction time, the motorcycle is assembled neatly on site. In case of difficulty
or breakdow, it should be placed at easily detected position on road and have warning.
- When constructing the foundation and surface: The length and distance of construction work
are suitable with the terrain and characteristics of the route. In rainy season, there are preventive
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
31
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
methods to prevent materials flow out to the side of the road, thus affecting traffic safety and
causing environmental pollution. During the construction of drainage ditch along the road, when
constructing to the ditch in front of citizen house, the Contractor will place the timber, steel
bridges over ditch to ensure the traffic at these locations.
- Construction materials only provide enough on road for specific construction phase and the
length of materials is not too long. Materials arranged on both sides of the road, not to dump
parallely in both sides to reduce the road surface, foundation.
- During floody, rainy season, construction work must be completed to clear all materials on the
road.
- Not let the material flow to the road causing slipperiness, traffic unsafety and environmental
pollution.
- Regularly instruct the drivers to strictly observe the traffic rules.
- All officers, employees and workers participating in the construction will be trained by the
Contractor to understand the regulations on traffic assurance.
- Daily progress report includes traffic assurance items.
III. Ensuring traffic safety in special situation
Situation: landslide slope, motorcycles slumps or stop working in the rainy season within the
road will be removed by pulling to clear the road surface, have fastest information through hotline.
In case the Contractor use the hotline to establish, to command construction teams to coordinate,
and to comform to the direction and guidance of Regional Road Administration Authority, Client,
Consultant ... to ensure free of road in the fastest way.
IV. Ensure information, communication system smoothly
The information and reports while delivered through documents, text can use SMS, MMS,
email system; information contains photos can be uploaded or scan through the smart phone
applications.
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
32
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
PART VII: SAFETY ASSURANCE METHOD FOR FIRE, EXPLOSION PROTECTION,
ENVIRONMENT HYGIENCE, SAFETY
- Since the characteristics of the construction site is not isolated, located at the waterfield areas
on both two sides, houses mainly on the beginning of the route with many trees that are easy to
ignite so environmental sanitation, fire prevention and working safety for people and verhicles
during construction process received great attention from us.
- To successfully solving the above issues, the Contractor will set up a sub-committee on safety
and environmental sanitation, fire and explosion prevention, led by the project leader and the
members of the subcommittee including: Team leader, Supervise engineers to perform the
following tasks:
+ Establishing site regulations and inform to all officers and workers on the site, the
regulation board is posted at the entrance of the site.
+ Before construction, the Contractor will provide adequate protection equipment to the staff
and workers of the construction work, and at the same time organize for the workers to re-learn
site rules, machine operation procedure, safety methods during construction.
+ The Contractor will purchase insurance for employees.
+ The sub-committee will supervise the implementation of the regulations on labor safety,
fire and explosion prevention and environmental sanitation. Weekly meetings will be held to
discuss and supplement experiences to meet the requirements.
I. EXPLOSION PROTECTION
1.1 General requirements
- Fire and explosion prevention and protection are currently focused to ensure a balanced
ecological environment. It is the responsibility of each of us to ensure that no fire occurs during the
construction process is an important factor in the overall plan of the project.
1.2 Implementation
- Before construction of the works, firefighting officers are responsible for reading the
construction regulations with fire and explosion prevention requirements to every worker, officers,
and persons responsible on site.
- Combining propaganda and education the officers and employees to strictly conform to
internal construction regulations within the construction site.
- Training for using of foamers and loose materials (sand) on fire when signaled (by whistle) of
Fire prevention officers. Find water resources to use if a fire occurs.
- Posted sign in visible positions.
- List fire alarms, emergency services, police phone numbers at the construction site and at the
location of the telephone.
- When the fire occurred, immediately announce to local authorities, regional firefighting force.
- Gathering people to clean, create a boundary between the burning area and the unburned area.
1.3 Urgent contact number
- Fire fighting
: 114
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
33
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
- Emergency
: 115
- Local police
: 113
- Contact the Fire Fighting Police, and regional firefighters to plan for coordination when
necessary.
- Firefighting officer are equipped with 02 horns (01 spare) for fire warning when observed.
- Placement of loose materials (sand, stone, ...) for construction is arranged in locations near fire
sources, ready to be used for stopping fire sources when necessary.
- Install 10kg fire extinguisher (CO2 sponge) along the flammable areas.
- Forbidden to store, accumulate flammable materials, fuel.
- Forbidden to repair, connect, switch off the circuit breaker, operate the equipments, increase
the load without the permission of the Electrical Engineer.
- Forbidden to erect high columns, which are not capable to prevent lightning causing flammable
sources.
- Do not cook near flammable areas.
II. WORKING SAFETY
2.1 General requirements
- Construction works has many workers and at many construction routes. There are many types
of materials and equipments for constructing the whole project, so the management of workers on
site by working safety is a deeply concerned item of construction team.
2.2 Implemetation
2.2.1 Safety for workers

General provisions :
- Workers working on site must fully meet the following issues:
+ Enough age according to the State regulations for each type of occupation.
+ Being healthy according to the standards of each job category. To be examined
periodically.
+ Be educated, checked the knowledge about working safety.
- Arrange a first aid team at site with a doctor, have enough medicine to ensure emergency work
if the problem occurs.
- All staff working in construction site must comform to the safety regulations.
- Wear protection hats, clothing, safely equipments when working on site.
- Hazardous areas are warned by signs: danger of landslide, elbows ...
- Absolutely not use stimulants such as alcohol, beer, pipe tobacco, .. while working.

Construction organization layout.
- Arrange the team in rational, non-overlapping.
- Verhicles access to construction site must have clear signal when crossing many workers.
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
34
METHOD STATEMENT

LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
Concrete pouring, compacting works.
- The electric wire from the board to the vibrator must be insulated.
- Have fences and forbidden signs underneath the concrete pouring area.

Structures installing crane
- Calculated, checked equipments: crane, cable hook, .... Specify the right to refuse operation
when the construction is not safe enough.
- Absolutely not swinging, climbing on the structure when crane is operating or moving within
the range of crane operation without wearing helmet as well as not equipped with protective
equipments.

The installation and use of electrical equipment for construction.
- Workers who install and use electrical equipment for construction must be educated and have
certificates of workmanship and working safety.
- Lighting must be at least 2.5m from the surface.
- All electrical wires on the site are insulated wires and placed at least 2.5m from the floor, in
case the wires connected to mobile devices, wires should be woven on wire ladder.
- All circuit breakers must have a lock so that the person without responsibility can not close or
break the circuit breaker.

Hand-held construction work.
- Using outdoor electric hand-held equipments, workers must be grouding isolated, have boots,
and wear insulated gloves.
- When using electric hand-held devices, workers are not allowed to stand on the ladder and
must stand on safety racks.
- Only remove the clamp from the electrical equipment when the circuit breaker is disconnected
from the equipments.

Electric welding
- Equipped with safety clothing: Wear gloves, insulated shoes, glasses, ...
- Equipment for welding work must have a clear history and correct type of safety requirements.
- Welding machine must be grounded. The length of the wire from the power source to the
welding machine is less than 15m.
- Welders working on high must be equipped with welding bags, welding rods, welding tools.
- Welding area should be covered with non-flammable material to ensure safety for the people
around.

Earth work safety
- It is only allowed to excavate the foundation pit in accordance with the approved construction
design.
- Excavation in underground areas (underground cables, pipelines, steam pipes, etc.) must be
approved by the management agency of those lines and the map to instruct location, depth of the
works.
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
35
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
- It is prohibited to excavate near subterranean roads by machine and noise tools such as as a
crowbar, picks, pusher, pressurized equipment.
Safety for constructing equipments
- Workers using machinery and equipments for construction must be educated and have
certificates of workmanship and working safety.
- All machinery used on the site must have a clear history and operating procedures to annouce
to the operators.
- Do not place the device in high risk areas.
- All electrical conductors from the panel to the equipment should be insulated.
- The earth constructing machine must stand no less than 1m from the foundation pit.
- At the end of workshift or when stop working, the operator must put the machine into stable
position before stopping, shutdowing.
- All power supplies for the machine must have a circuit breaker at site to stop immediately
when emergency. The circuit breaker must be locked so that the unresponsive person can not close
or break the circuit breaker.
- The equipment needs to be conenected to the grounding system.
- Machine maintenance is only possible when the power is off, engine is stopped.
2.3 Environment Sanitary
2.3.1 General requirements
Environmental sanitation to ensure a fresh environment is the responsibility all human beings,
the construction works are not outside that responsibility. In order to make good environmental
sanitation, we need to implement well the following criterias.
2.3.2 Implementation
- Guide, educate all workers working on site to aware of the environmental protection.
- No cookingt, burning indiscriminately. While heating bitument must choose location away
from home, but still ensure the requirements when brought to irrigation. After heating, it is
necessary to extinguish the fire then clean.
- All trucks delivered materials such as soil, sand .... must have canvas cover. When entering the
site, it is necessary to limit the speed of the truck.
- Pour water on the constructiing road in hot dry days to reduce dirt.
- Materials used in construction process are properly estimated for not to be spared
indiscriminately, avoid waste and ensure hygiene.
2.3.3 Method to redure air pollution
- During construction, the work causing environmental pollution due to dust, noise, grease waste
and road construction materials is unavoidable. Following are some recommended methods to
minimize these pollution:
+ Periodically pouring water on constructing road surface and temporary roads to reduce
dust.
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
36
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
+ Making good temporary house for workers. Pay attention to drainage and waste collection
to reduce air and water pollution.
+ Forbidden to use oil, rubber layer to heat bitumen to avoid air pollution
+ Protect the damaged surface due to soil exploition for installing foundation, re-planting
trees protect the excavated road.
+ Strictly forbid to dispose toxins, construction scrap into the canals.
+ Finally, the supply of fuel for the construction machines should be taken care of, avoiding
the accident of breaking up, falling into the environment.
2.3.4 Method to reduce dust for resident area along the road in road exploiting stage
- Methods to reduce air and dust pollution:
+ Affect mainly to air quality during the operation of the road caused by the emission of
vehicles.
+ Reducing air pollution from the emission of polluting vehicles requires a policy from the
central to local level and is a matter of each individual area.
+ During construction, roads should be periodically irrigated based on weather conditions
including official roads, material trucks will be covered.
+ Maintain the diesel equipment and cut unnecessary equipment to reduce the pollution.
2.3.5 Environment monitoring and supervising
- Special attention should be given to main Contractor and subcontractors in the following areas:
+ Movement and normal traffic safety.
+ Routes and operations of constructing equipments.
+ Tree protecting.
+ Dust control.
+ Maintain horizontal flow.
+ Wages and construction conditions of the workers.
+ Works of the workers.
+ Health screening and health services for the workforce .
+ Eliminate waste.
+ Other methods included in the contract documents must be ensured compliance with key
environmental controls during construction. Includes:
+ Noise control.
+ The level of air pollution.
+ Prevent pollution of surface water and groundwater.
+ Restore habitat.
+ Erosion control.
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
37
METHOD STATEMENT
LSP Complex Project Package A2
– Land development #3 : PVD and PHD, Monitoring
- Corrective methods can be implemented strictly through the study of legal and contractual
requirements. The technical regulations in the next steps will outline what Contractors need to do
in this area.
2.3.6 Conclusion and recommendation
- The project has a positive impact on the living environment and promotes economic
development in the region. However, the negative effects are unavoidable, influence level depends
on the consciousness of each of us. Implementing the minimum reduction methods can minimize
these negative effects.
- After complete of construction work and of all work items according to the basic technical
requirements presented above. The construction team must remove the temporary works, moving
out equipments and machinery of the project site, dispose the waste lefted on the site, sanitize the
entire construction area and return the whole environment as before construction.
- In order to ensure the quality of the works, the Construction team must strictly comply with the
instructions of Supervision Engineer and the issued regulations, procedures for that work.
- To carry out the Warranty Policy in accordance with the current regulations, during that time
also have to repair the defects if any. Then continue to liquidate.
- In addition, survey design work can not be pretended in construction so can not avoid the
inadequacies between the reality and design. Therefore,the Contractor proposed the project
management board regularly monitor and resolve timely and quickly to create favorable conditions
to the construction team.
FICO-COREA CONSTRUCTION CO., LTD.
The 6th Floor, Green Country Building, No 1, Road 81, Tan Quy Ward, District 7, HCM City
Telephone: (84-28) 3771 5589
Fax: (84-28) 3771 5717
38