Ensuring availability of water round the year near
Vishnupad Mandir on left bank of Falgu River in Gaya
District, Bihar.
Main Contractor:-
NCC Limited
Irrigation Division
Brief Description of Project
Gaya is historically and from tourist point of view very important place in the India. Vishnupad
temple on left bank of Falugu river and Sita Kund on the right bank are important pilgrimage and
tourist places in the state of Bihar and in India also. Gaya is famous for pind-dhan rituals which
needs water for performing the same. River Falugu is subjected to heavy floods in the rainy
season and dwindles to a small stream with meager water flow in the other times of the year. Due
to this performing Pind-dhan rituals is becoming difficult. To ensure the availability of water in
Falugu river the Rubber dam is provided across the river for a length of 411 meters on Down
stream of Vishnupad temple. The water will be regulated or stored with installing bullet resistant
air inflated rubber dam of 3.00 meters height. To control the seepage from the ponding area
sheet piling and Diaphragm wall on both flanks and axis of rubber dam are doing as per the
guidance of IIT Rourkee.
Project Information
Name of Project
-
Ensuring availability of water round the year near
Vishnupad Mandir on left bank of Falgu River in
Gaya District, Bihar.
Agreement No
-
01SBD / 2020-21 dt 15.09.2020.
Client
-
Govt of Bihar – Water Resource Department.
Contract Value
-
312.21 Crores.
Project Duration
-
36 Months.
Project Start Date
-
23-Sep-2020
Main Contractor
-
NCC Limited, Hyderabad.
Salient Features Sl.No
Descriptions
Details
1
Length of Rubber Dam
411 Meters
2
No. of Spans
6 Nos
3
Clear Span
65 Meters
4
Abutments
02 Nos
5
Piers
05 Nos
6
Width of Dam
95.50 Meters
7
Water Regulating
By Providing Bullet Resistant Air inflated
Rubber dam for 3.10 meters height.
8
Sheet Piling
For Controlling Seepage
9
Diaphragm wall
For Controlling Seepage
10
Grouting
For Controlling Seepage
11
Steel Bridge
For Pedestrians crossing
12
Type of Dam
Rubber Dam
Hydraulic Particulars of Dam Sl.No
Descriptions
Details
1
Maximum/Design Discharge
5470 Cumecs
2
Average River Bed Level
+ 104.600
3
Pond Level
+ 107.600
4
Highest Flood Level
+ 108.240
5
Crest Level
+ 104.600
6
Pier/Abutment Top Level
+ 111.000
7
Length Of Dam
411.000 meters
8
Width Of Dam
95.500 meters
Major Quantities (As per Revised Scope) Sl.No
Descriptions
UOM
MT
Quantity
1
Sheet Piling
2
Diaphragm Wall
3
Concrete (PCC & RCC)
Cum
63,427
4
Reinforcement (Including Diaphragm wall)
MT
4,208
5
Steel Bridge
MT
1,241
Rmt/Cum
3,047
300/6750
Design Status
• All drawings related to civil structures like Raft, Pier, abutment and
Rubber Dam are prepared by Department and vetted by IIT.
• The designs and drawings of Steel foot bridge are prepared by
Department and submitted to IIT Roorkee for vetting.
• Make up Water scheme to be finalized.
Project Planning
Original Construction Schedule – Bar chart
Preponed Construction Schedule – Bar chart
Sl.no Description of Item
Nov-20
Dec-21
Jan-21
Feb-21
Mar-21
Apr-21
May-21
Jun-21
Jul-21
Aug-21
Sep-21
Oct-21
Nov-21
Dec-21
Jan-22
Feb-22
Mar-22
Apr-22
May-22
Jun-22
Jul-22
Aug-22
Sep-22
Oct-22
Nov-22
Dec-22
Jan-23
Feb-23
Mar-23
Apr-23
May-23
Jun-23
Jul-23
1
Mobilization and Camps establishments
2
Sheet Piling
3
Guide wall
4
Diaphgram wall
Excavation and dewatering
Rubber dam portion
5
CF walls
Bank protection
Ghats
Mad Mat PCC - M10
Rubber dam portion
6
CF walls
Bank protection
Ghats
Raft RCC M-25 & Shuttering (Foundations)
Rubber dam portion
7
CF walls
Bank protection
Ghats
Abutments & Piers
( Shuttering & Concreting)
Sub& Super Structure
Rubber dam portion
8
CF walls
Bank protection
Ghats
9
Drilling & grouting
Foot Bridge
10
Fabrication & Torquing
Assembly
Erection
Rubber Dam Instrumentation & Controll
panels
11
Rubber installation
Controll Room
Instrumentation & Control panels fixing and
Commissioning
12
CC blocks in M-15
13
GI Wire crates Revetment
Rainy Season
Rainy Season
Rainy Season
Aug-23
Sep-23
Oct-23
Physical Progress Status (As per Revised Scope) Sl.No Descriptions
UOM
Total
Project
Quantity
Achieved as
on 30-09-21
Balance
Quantity
1
Sheet Piling
MT
3,047
1,735
1,312
2
Diaphragm Wall
Rmt
300
162
138
3
Excavation
Cum
1,50,653
34,523
1,16,130
4
Concrete (PCC & RCC)
Cum
63,427
6646
56,781
5
Rebar Steel
MT
4,208
621
3,587
6
Foot Bridge
MT
1241
-
1,241
7
Financial progress
312.21
40.13
272.08
Crores
Key Personnel Status
Key Personnel Status (Contract vs Actual Deployed)
Sl.No.
Designations/Particulars
Unit
As per Contract
Actual Deployed
Nos
1
1
Nos
4
4
Nos
2
2
Nos
2
2
Nos
4
5
Nos
-
1
Nos
-
2
Remarks
Operation
1
Project Manager
Execution
2
Site Engineer
Quantity Surveyor
3
Civil Engineer-Q.S.
Survey
4
Survey Engineer
Execution Supervisor
5
Site Supervisor
P&M
6
P&M Engineer
Safety
7
Safety Engineer
Accounts
8
Accountant
Nos
-
1
9
System Administration- EDP
Nos
-
1
Nos
-
1
HR & Admin
10
HR Officer
Stores
11
Store Officer
Nos
-
1
12
Store Assistant Officer
Nos
-
2
13
23
TOTAL
100% Fulfilled
Sl.No
Description of Item
Nos. Required as
per Agreement
Available At
Site
Additional
Planned
01
02
-
1
Batching Plant 30 CPH
2
Vibro Hammer (Sheet Pile)
-
02
-
3
Crawlers Cranes
-
03
-
4
Crane Tyre mounted
-
01
02
5
Hydraulic Grab (For ‘D’ wall)
-
01
-
6
Hydra
-
02
01
7
Static Concrete Pump
-
01
-
8
Excavator 210
03
06
-
9
Transit Mixers
-
03
02
10
Dumpers
08
08
-
11
Trailer
-
01
01
12
JCB
-
01
01
13
Dewatering Pumps
-
24
10
14
Tractors
-
08
04
15
Boom Placer
-
-
01
16
Steel cutting and bending machine
-
03
01
Construction Sequence
Downstream
Pier-5
Pier-4
Pier-3
Pier-2
Pier-1
Abutment –
Left side
Abutment –
Right side
Span-6
Span-5
Span-4
Span-3
Span-2
Right Banking
Left Banking
Upstream
Falgu River Rubber Dam - Plan
Span-1
Legend:1.
Sheet Piles
2.
Diaphragm Wall
3.
Raft
4.
Abutment
5.
Pier
6.
Return Wall
7.
Steel Foot Bridge
8.
Rubber Dam
Falgu River Rubber Dam Section Dwg
`
Legend:1.
Sheet Piles
2.
Diaphragm Wall
3.
Raft
4.
Abutment
5.
Pier
6.
Return Wall
7.
Steel Foot Bridge
8.
Rubber Dam
Legend:1.
Sheet Piles
2.
Diaphragm Wall
Sheet Piling & Diaphragm wall Sequence
Raft – First Season
Legend:1.
Sheet Piles
2.
Diaphragm Wall
3.
Raft
4.
Abutment
5.
Pier
6.
Return Wall
Raft – Second Season
Legend:1.
Sheet Piles
2.
Diaphragm Wall
3.
Raft
4.
Abutment
5.
Pier
6.
Return Wall
Pier & Abutment – Second Season
Legend:1.
Sheet Piles
2.
Diaphragm Wall
3.
Raft
4.
Abutment
5.
Pier
6.
Return Wall
Steel Foot Over Bridge – Erection and Rubber
Dam- Installation
Legend:1.
Sheet Piles
2.
Diaphragm Wall
3.
Raft
4.
Abutment
5.
Pier
6.
Return Wall
7.
Steel Foot Bridge
8.
Rubber Dam
Protection works – Concrete blocks and Stone pitching in wire crate and
Misc works – Water Make-up and Ghats etc – Parallel Activities during steel
foot over bridge and rubber dam installation works.
Progress Update - Graphical
Planned vs Actual First Season
143,20 Rmt
43 Rmt
43 Rmt
43 Rmt
336 Rmt
64.4 Rmt
134.3 Rmt
77.2 Rmt
235 Rmt
Legend:-
Sheet Piling & Diaphragm wall Sequence
progress Completed as on 31-05-2021
1.
Sheet Piles
2.
Diaphragm Wall
3.
Progress Achieved
Planned vs Actual First Season
Raft – Excavation Status
Legend:1.
Sheet Piles
2.
Diaphragm Wall
3.
Raft Excavation Planned for
Entire First Season
4.
Raft Excavation Achieved
Planned vs Actual First Season
Raft – PCC Status
Legend:1.
Sheet Piles
2.
Diaphragm Wall
3.
PCC Planned for Entire First
Season
4.
Raft PCC Achieved
Progress Pictures
Diaphragm wall Grabbing – Main Barrage Axis
Diaphragm wall Concrete – Banking side
Diaphragm wall Cage Reinforcement
Diaphragm wall Cage Reinforcement Lowering
Sheet Piling Works
Sheet Pile below Pier No-5 (In between Span 6 & Span 5)
Sheet Pile (Downstream)
Sheet Pile (Left Bank Side)
Excavation works (Span-6)
PCC Works – Span-6
PCC Works – Span-6
Raft Reinforcement & Side Shuttering works
Raft Concrete works
Raft Concrete works
Raft Concrete works
Raft Concrete works (Up to 25-05-2021)
Status of Site (28-05-2021)
Status of Site (23-06-2021)
Status of Site (23-06-2021)
Status of Site (02.09.2021)
Status of Site (02.09.2021)
Status of Site (09.10.2021)
Status of Site (09.10.2021)
Thank You