Designer/Contractor JV- Apron Services Projects- A
Winning Case
The KAIA project Case Study
Introduction
The purpose of this presentation is to demonstrate :
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How early Engineer( designer/ Contractor
coordination and cooperation can overcome the
difficulties encountered
• Highlight unforeseen and foreseen difficulties and
challenges encountered in the KAIA project
Introduction
 AME- DEP JV
 KAIA back Ground and Scope of Work
 Project Constraints
 Project Deliverables
 Project Procurement Plan
 Systems Design
 Conclusion
Designer / Contractor JV
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AME Background
DEP Background
AME-DEP JV and history of cooperation
DEP Role in KAIA:DEP is doing design – shop dwgs –
technical procurement submittals – construction
management and cost control
Project Background and Scope of Work
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Client : GACA
Main Contractor : Saudi Bin Ladein Group – SBG
Apron Subcontractor – Al Mabani AGC
Apron Services Subcontractor – AME/DEP
Project Background and Scope of Work
Scope of Work:
1. Potable water treatment plants and potable water
piping network from Tech. rooms to pits.
2. Blue water treatment plants and blue water piping from
Tech. rooms to toilet pits.
3. Vacuum receiver plants and piping network.
4. PCA air handling units and corresponding under-gound
ducting and PCA pits
5. Glycol chilled water plant rooms and networks.
6. GPU 400 Hz system and pits
Project Background and Scope of Work
Aprons 17-18-19 and PTB Area in scope
Project Deliverables
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Material Submittals
Design and shop drawings
Method statements
Monthly Progress Reports
O & M manuals
As Built Drawings
Testing and Commissioning Reports
Training
Warranties
Project Constraints
The main constraints challenging AME at this project are the
following:
1. The short project duration which is by any standards is
very tight for the scope of work at hand .
2. The different layers of upstream parties, mainly the CM
and designers , and at a second level Main Contractor
and Subcontractors
3. The Various unforeseen changes from the original tender
design due to site conditions / project updated
requirements / cost and time constraints
4. The delays in design / approvals / material
Project Constraints
5.
The difficulty of direct communication between many
of the parties due to contractual constraints
6.
The peculiarity of some of the specified items such as:
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Vacuum drainage system
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Glycol sub cooling method
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SS PCA Duct for mobile ACU
7.
The interface with other contract packages which could
increase the number of unforeseen problems.
Why a Designer on Board is a Winning Case
1.
The Complexity of the modern airport systems makes it
necessary to do every bit of study and calculations and
drawings to achieve a coordinated installation
2.
To get seamless relations with the CM which is himself
is an engineer
3.
The various changes in design during construction due
to site conditions requires a designer on board during the
construction to find the proper solutions
4.
When a Designer is in direct contact with the specialists
/ suppliers the design will be more customized and more
understanding to the equipment strengths and
weaknesses.
Examples of Unforeseen Difficulties
1.
2.
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4.
Changes in the Client Requirements
Suppliers uncontrolled supply delays
Site level changes and various obstructions
Differences in Contract requirements interpretations
Project Procurement Plan
AME has prepared a procurement plan relating to time and cash flow to
suit the project schedule and technical requirements. The basic
elements of this plan are :
1.
2.
3.
4.
Establishing a basket of reputable suppliers
Providing proper material submittals for approval
Identifying long lead items and placing orders on time
Delivering the material on site as per project schedule
H-Project Manpower Histogram
I-Communication Plan
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The Solution….Apron Services
Note: Fuel Trucks shown
Removed (Hydrant Fueling)
90 KVA
PCAir
PCAir
90 KVA
H2O
Blue H20
Lavatory
MARS GATES
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Multi
Aircraft
Ramp
System
Systems Design
Vacuum System
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Systems Design
Vacuum System
Systems Design
Toilet Pit
Systems Design
Vacuum Lines Profile
Systems Design
Glycol Chilled Water System
Systems Design
Glycol System Configuration
Systems Design
PCA Unit Installation Detail
PW Reel
Pit Access
PCA Hoses
Valves
PCAir and Potable Water Pits
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Central Glycol Plants
– Thermal Design
– Civil works design and installation
– Distribution Network
– Responsible for Performance
– Chiller Supply
2
Systems Design
Potable Water System
Systems Design
Potable Water System
Systems Design
Blue Water System
Systems Design
Valve Chamber Detail
Systems Design
Service Pits (400 Hz)
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Systems Design
The GPU Approach
PBB Mounted Reels or……Pits
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Conclusion
An early designer intervention and close cooperation with the
specialist / contractor is a key factor in the project success
Thank You