盐渍地段天然气管道安装土工防渗膜施工及质量检验方法

Construction and Quality Inspection Method for Geomembrane Installation of GasPipeline in Saline Section

摘要: 别伊涅乌–奇姆肯特天然气管道项目在盐渍地段的管道铺设中，采用了管道外包裹土工防渗膜作为附加防腐层的方法。结合长输管道施工工序，从施工前准备、安装方法及技术要求、焊接施工方面介绍了管道安装土工防渗膜的施工方法，明确了具体的质量检验方法和要求，为今后在盐渍地段、沼泽地段管道安装土工防渗膜施工和质量检验等方面提供了经验积累。

Abstract: In the pipeline laying in saline section of Beineu-Shymkent gas pipeline project, the method of wrapping geomechanical impermeable film outside the pipeline was adopted as additional anticorrosive coating. According to the construction procedures of the trunk pipeline, the installation methods of geomembrane were introduced from the aspects of pre-construction preparation, installation method, technical requirements and welding technology. The concrete quality inspection method and its requirement are clarified, it provides experiences for the installation of geomembrane in saline section and swampy area and quality inspections.