Construction of Interconnection Tunnel and Diaphragm Wall for Main Pumping Station at Stonecutters Island Sewage Treatment Works
- Stonecutters Island, Hong Kong
- Government of Hong Kong S.A.R (Drainage Dept)
- Ove Arup & Partners Hong Kong Ltd.
- China State - Shanghai Tunneling Joint Venture
The Company has been awarded the sub-contract for the mined tunneling works by China State - Shanghai Tunneling Joint Venture under Contract DC/2009/05 - Construction of Interconnection Tunnel and Diaphragm Wall for Main Pumping Station at Stonecutters Island Sewage Treatment Works which forms part of Harbour Area Treatment Scheme, HATS 2A.
The package requires the mining and excavation through ground treated by thermal stabilsation, in this case artificial freezing using nitrogen, and the installation of cast-insitu re-inforcement concrete lining to create a tunnel between the existing riser shaft and the temporary TBM launching shaft.
GBFC has the capability, experience and resource capacity for immenent mobilsation for the works.
The mining and construction works are scheduled to begin in June with completion before end July 2012.
Harbour Area Treatment Scheme (HATS) 2A Project details link below;