The Singapore Changi Airport Terminal 5 development will add 50 million passengers per year capacity, bringing the total across all terminals to 140 million from the current 85 million.
To serve the expanded airport, the Thomson-East Coast Line will be extended from Sungei Bedok to Changi Airport station, connecting the new Changi Airport Terminal 5 with the existing Terminals 1-3 at the existing Changi Airport station. The Changi Airport branch of the East-West Line from Changi Airport to Tanah Merah will also ultimately be converted to the Thomson-East Coast Line system.
Contract T316 has been awarded to Shanghai Tunnel Engineering Co. (STEC) covering the construction of twin bored tunnels from T5 development towards Changi Airport (CGA) T2 Station North Finger Pier. STEC have engaged ARUP as their design consultant for the contract.
These tunnels will pass beneath the existing airport terminals and aprons in a number of locations. Changi Airport Fuel Hydrant Installation Pte Ltd. (CAFHI) the operator of the fuel hydrant system at the airport, are concerned that appropriate measures are taken to avoid or mitigate any impact the tunneling works may have on the buried fuel hydrant pipelines at these crossing locations and it is a requirement of the contract that an approved aviation specialist company be appointed to ensure that such measures are implemented.
Brightstar Scope of Work:
As one of CAFHI’s approved aviation fuel specialists, Brightstar were appointed by ARUP to provide technical advice and support for the design and construction of the tunnels.
Brightstar’s scope includes the review of STEC’s consultant’s tunneling model to assess the impact on the buried hydrant fuel lines in terms of the allowable stresses due to imposed deflections as well as the maintenance of an acceptable pipe profile as required by the JIG and EI standards.
Brightstar’s scope also includes the recommendation of appropriate inspection techniques to accurately locate and assess the condition of the buried lines, review of the proposed construction methodologies, representation at meetings and workshops and attendance on site during the critical construction periods.
Value Added:
As one of the world’s busiest airports, access for pre-installation investigation works is severely limited and all construction works subject to rigorous planning, review and risk assessment processes.
Brightstar’s unique combination of aviation fuel systems and oil pipeline design and construction expertise has enabled us to provide robust advice based on proven methodologies and techniques which delivers the project stakeholders the high level of confidence they require to sanction the works.
