介绍了源汇法的基本原理，并利用源汇法，分析了钻孔桩施工引起止水帷幕结构的应变规律，从而判断钻孔桩施工对止水帷幕的影响，对类似工程施工有一定的借鉴意义。%The paper introduces the basic principle for the source distribution method,adopts the method to analyze the strain o the waterproof curtain caused by the bored pile construction,so as to judge the influence of the bored pile construction on the waterproof curtain,and it is mean-ingful for similar projects.
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