非开挖修复技术在截污管道修复中的应用

截污治污工程作为水质改善的重要组成部分，对水环境治理具有基础性作用。很多城市的截污管道由于建成年代早、使用年限长，已出现不同程度的缺陷，污水外渗严重影响周边河流与地下水环境。非开挖修复技术凭借施工占地少、工期短、环境效益好等优势，在截污管道修复中得到广泛应用。结合广东省惠州市某截污管道修复工程，对非开挖修复技术的选择与应用进行探讨，为同类工程提供参考。

Application of Trenchless Repair Technology in Repair of Sewage Interception Pipeline

As an important component of water quality improvement, the sewage interception and control engineering plays a fundamental role in water environment treatment. Due to its early construction and long service life, many urban sewage interception pipelines have been defective to varying degrees. The sewage leakage seriously affects the surrounding rivers and groundwater environment. The trenchless repair technology has been widely used in the repairing of sewage pipelines because of its advantages such as small construction land occupation, short construction period and good environmental benefits. Combined with a sewage interception pipeline repair project in Huizhou City of Guangdong Province, the selection and application of trenchless repair technology are discussed, which provides the reference for similar projects.