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《Chinese Journal of Underground Space and Engineering》 2006-04
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Discussion of Differential Methods for Seepage Location and Lateral Water Pressure of Impervious Structure

LUO Xiao-qing~1,CAI Chang-hong~2(1.Guangzhou Municipal Construction Secondary Technical School 510500 P.R.China;2.Guangzhou Zhongxin Construction Engineering Co.Ltd 510160 P.R.China)  
To explain the distinct difference between the results from calculation model and actual measure value of lateral water pressure of impervious structure,this article puts forward the concepts of "equivalent osmosis coefficient among joints","develop zero osmosis joint" and "variable zero osmosis joint" in analysing groundwater seepage flow,for solving numerical simulation by differentail method for latent water surface of groundwater seepage flow.On the base of simulated engineering examples and analysis of the results of lateral water pressure simulation and the error of common impervious model,the main reason of analysis error is pointed out that the common impervious model can not reflect the practical flow more accurately and in the actual engineering,the lateral water pressure of the impervious structure should be determined according to specific different situations.
【CateGory Index】: TV223.4
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