Typical HDD Projects

Liao River HDD Crossing Ф1016mm Natural Gas Pipeline Installation in sand stone with great resistance of pull-back Jan

Time: 2018-09-15 10:26:54 View: 2243

Jan 26 2011, Qin-Shen district natural gas pipeline project, main line, Liao River 2nd crossing project was pulled back successfully.


The Liao River project was made of two stages by crossing the medium coarse sand. Liao River 1st crossing was successfully pulled back in Dec.2nd 2010. The Liao River 2nd was crossing through 1578m of quicksand with great resistance of pull-back. According to this geological condition, HY firstly utilized the pipe-pushing technology, accompanied with the self-developed HY-9800 to solve this issue.

In this project, HY made the first record in China of Ф1016mm pipeline with 1578m crossing length.


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