6. DC/2010/05 Sha Tin River

Client: Drainage Services Department

Contract No.: DC/2010/05

Project Title: Construction of Trunk Sewers underneath Channels in Sha Tin and Village Sewerage

Main Contractor: Welcome Construction Company Limited

Sub-contract Works: Laying of ID 600mm, 1200mm and 1500mm Concrete Jacking Pipes by Tunnel Boring Machine TBM600DH,   1200DHL, 1500DHL and installation of sewer pipes inside the sleeve pipes. 

Total Length: 839m

Duration of works : 2011 – 2013

 

Significant Works of TBM Pipe Jacking

 

The main sections of pipe jacking works consists of

 

  1. Laying 240m long twin DN1500mm Concrete Jacking Pipes by Tunnel Boring Machine 1500DHL across Shing Mun River; the Jacking and Receiving Pits were constructed in appr. 17m depth at Tai Chung Kiu Road & Shatin Sewerage Pumping Station, where 13m head high pressure of underground water was encountered;

 

  1. Laying 83m long ID1200mm concrete jacking pipes by Tunnel Boring Machine 1200DHL across Siu Lek Yuen Nullah; the Jacking and Receiving Pits were constructed in appr. 11m depth adjacent to Ravana Garden river shore;

 

  1. Laying 143m long ID1200mm concrete jacking pipes by Tunnel Boring Machine 1200DHL across Fo Tan Nullah and along the channel side; the Jacking and Receiving Pits were constructed in appr. 8m depth near Fo Tan MTR Station;