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According to imperfection of permeability test for anti-seepage wall in dyke construction,three-segment algorithm for seepage calculation of the homogeneous earth dike on impervious foundation is referenced,and five-segment algorithm of permeability coefficient of anti-seepage wall is presented.And then the algorithm is verified by numerical simulation of water injection test.The result shows that when the difference between permeability of soil mass and anti-seepage wall is in the range of 200-1 000 times,inspection results is more accurate;when the permeability difference is less than 200 times,with increase of numbers of downstream inspection hole,the error will be eliminated;when the permeability difference is larger than 1 000 times,the calculation error can not be eliminated but the results can be used for qualitative analysis.Therefore,the algorithm can be applied to the practical engineering by setting certain conditions.
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Basic Information:
DOI：10.20040/j.cnki.1000-7709.2013.06.042
China Classification Code:TV223.42
Citation Information:
[1]JI Wei,TENG Hongmei,CHEN Yan,DU Bei,HOU Zhongyuan,ZHANG Lei,WANG Lili(Institute of Water Conservancy Works Design of Xuzhou,Xuzhou 221000,China).Five-segment Algorithm for Permeability Coefficient of Anti-seepage Wall in Homogeneous Earth Dike on Impervious Foundation[J].Water Resources and Power,2013,31(06):144-146+176.DOI:10.20040/j.cnki.1000-7709.2013.06.042.
2013-06-25
2013-06-25