城镇天然气管道水平定向钻穿越河流施工要点

Key Points in Construction of City Natural Gas Pipeline River Crossing Using Horizontal Directional Drilling

以某城镇天然气管道水平定向钻穿越河流工程为例,探讨施工过程中的技术要点,包括施工准备、导向孔钻进、防腐层质量控制、管道回拖、泥浆配比等。

Taking a city natural gas pipeline river crossing project using horizontal directional drilling as an example,the technical key points in the construction process,including construction preparation,pilot hole drilling,anti-corrosion layer quality control,pipeline pull-back,mud ratio and other aspects are discussed.