地下砼管廊沉降断裂透水的综合处置技术

Comprehensive Disposal of Permeable Fracture Caused by Subsidence of Underground Concreteutility Tunnel

地下管廊在使用过程中会出现不同程度的断裂、下沉、渗水等事故,进而影响其正常使用。文章提供一种原位修复的技术方法,通过降水井降低地下水压,再通过注浆加固周围土体抑制进一步下沉,稳定后施做复合止水带。该工艺方法取得了良好的效果,具有很好的实用性。

Underground utility tunnel in use process would appear different degree of fracture,sinks,water seepage and other accidents,and these affected the normal use.The article provided a method of in-situ repair technology which reduced the underground water pressure by dewatering well at first,then grouting in order to inhibit the surrounding soils to sink further,pasted the compound water-stop at last.This process method achieved good results and had a good practicability.