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Shenzhen to Tai Po Grout Mattress

Shenzhen to Tai Po Offshore Pipeline

  • Mirs Bay to Tolo Harbour, Hong Kong
  • Hong Kong and China Gas Company
  • Aker Kvaerner
  • Leighton Asia
  • 2005 - 2006

Project Highlights

Leighton installed twin submarine pipelines from a Liquefied Natural Gas (LNG) receiving terminal in Shenzhen, Peoples Republic of China, across Mirs Bay through the Tolo Harbour to the Tai Po production plant in the northeast coast of the New Territories in Hong Kong.

Each pipeline is approximately 32 kilometers long and 18 inches in diameter.

The Company provided diving and marine support for survey of seabed obstruction and carried out vibrocoring sampling. The extent of the obstruction was established and GBFC installed free form grout mattresses using a purpose built handling frame to expedite the works throughout the exposed chainage of the new twin submarine gas pipeline protecting it from possible mechanical damage in the shipping lane. Precisely formulated grout was used to achieve the minimum requirement of 65 mpa.