抽水试验在基坑止水帷幕质量检测中的应用研究  

Research on Application of Pumping Test in Quality Inspection of Waterproof Curtain of Foundation Pit

作　　者：杨眉 黄铸豪 林俊奋 温世聪 YANG Mei;HUANG Zhuhao;LIN Junfen;WEN Shicong(Guangdong Provincial Academy of Building Research Group Co.,Ltd.Guangzhou 510500,China)

机构地区：[1]广东省建筑科学研究院集团股份有限公司,广州510500

出　　处：《广东土木与建筑》2021年第8期111-114,122,共5页Guangdong Architecture Civil Engineering

摘　　要：针对止水帷幕止水效果的检测与评价目前尚无相关规范参考的情况,提出了利用抽水试验对试验点周边基坑内外地下水连通情况判断止水帷幕止水效果的方法,结合具体工程实例进行了研究,通过实测数据分析表明抽水试验可对止水帷幕止水效果进行有效评价,而且通过3个降深更便于观察不同深度的止水效果,最大降深控制在基坑设计深度以下1.0 m范围内也证明是比较合理的。In view of the fact that there is no relevant standard reference for the detection and evaluation of the water-stop curtain waterstop effect,a method for judging the water-stop curtain water-stop effect by the pumping test on the connection of the groundwater inside and outside the foundation pit around the test site is proposed,combined with specific engineering examples.The analysis of actual measured data shows that the pumping test can effectively evaluate the water-stop effect of the water-stop curtain,and it is easier to observe the waterstop effect of different depths through 3 drawdowns,and the maximum drawdown is controlled within 1m below the design depth of the foundation pit is more reasonable.

关 键 词：基坑 止水帷幕 抽水试验 止水效果 检测 

分 类 号：TU473.1[建筑科学—结构工程]