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《Tianjin Science & Technology》 2016-02
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A Model Test of the Water Release of 10 m Deep Silty Clay in Tianjin

LIU Wenhao;ZHANG Shuchao;School of Civil Engineering,Tianjin Chengjian University;  
Specific yield of soil is the basic parameter for the engineering design of foundation pit precipitation. Its precision directly affects the calculation of foundation pit precipitation, precipitation well number and precipitation time etc. In this paper, silty clay in Tianjin, with a depth of 10 m was taken as a representative sample to carry out water releasing tests for two times. According to test results, internal mechanics of the water releasing process and the change of specific yield of aquifer were shown, namely, the relationship between specific yield and water releasing time is hyperbolic type. Then, the formula indicating the relationship between the two was obtained, which can be used as a reference to foundation pit dewatering design and construction in Tianjin.
【Fund】: 大学生创新创业训练计划项目——天津地铁工程减压降水对周边环境的影响分析(201410792025)
【CateGory Index】: TU442
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