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文章针对南水北调中线一期工程总干渠黄河北某段膨胀岩高地下水位复杂地质环境施工存在的问题,分析了该段水文地质条件的特点以及其对工程安全和工程质量的影响。有针对性的提出采取“放为主,抗为辅”的施工理念。通过施工中的各种不同的排水措施的实施,较好的完成了施工任务,经过长时间的检测,施工质量满足要求,工程可安全的运行。通过南水北调工程实践证明“放为主,抗为辅”的施工理念能够较好的解决了这一问题,可为类似工程提供实践借鉴。
In this paper, according to the existing problems in the construction of complex geological environment of expansive rock high groundwater level in the main canal of the mid - route of South - to - North Water Diversion Project, this paper analyzes the characteristics of hydrogeological conditions and the impact on the project safety and project quality. Targeted proposed to take “put the main, anti-supplemented ” construction concept. Through the implementation of various drainage measures in construction, the construction tasks are completed well. After a long period of testing, the construction quality meets the requirements and the project can be operated safely. Through the practice of “South-to-North Water Diversion Project”, it has been proved that the construction concept of “letting be the mainstay and resistance as the auxiliary” can better solve this problem and provide practical reference for similar projects.