某基坑工程渗漏处理实践

Leakage treatment technologies for a foundation pit project

对某基坑渗漏的原因进行了分析,指出施工管理缺位和复杂的地质环境是造成渗漏的主要原因,在此基础上制定了补设高压旋喷桩、加强降水的渗漏处理方案,本基坑工程渗漏处理的关键点是降低地下水,可采用真空深井降水或者轻型井点降水代替自流深井降水,同时施工过程中应该加强止水帷幕的施工管理,可以为类似工程提供参考。

This paper analyzes the causes of leakage of a foundation pit and points out that the problems of construction management and complexity of geological environment are the main factors.Hence,a leakage treatment scheme is proposed by increasing high-pressure jet grouting piles and promoting dewatering.It has been highlighted that the key point of the leakage treatment technology for this foundation pit project is dewatering.As a result,vacuum deep well dewatering or light well point dewatering can be adopted to replace the deep-well dewatering.Meanwhile,the construction management of the waterproof curtain should be strengthened during the construction process in order to provide a reference for similar projects.