Laboratory Experiment on Reparation of Anti-Seepage Wall in Overburden Base of Dam
Through the laboratory experiment by grouting in sandy gravels, which carried on in the sandbox, the study on anti-seepage wall reparation in the overburden base of dam was conducted. Firstly, after thinking a-bout the mixing ratio, the gel time, stone body intensity, grouting costs, grouting procedure etc., the cement slurry was finally selected as the grouting material and related parameters were determined. Secondly, on the basis of the test in relations among grouting pressure, grouting velocity and diffusing scale of slurry, connectivity of grouting calculus was observed and the vertical layout of the hole filling was determined, moreover how the changing of flow velocity under different water heads affecting diffusing of grout was studied. Finally, in terms of the reparation on anti-seepage wall, the effect of anti-seepage wall reparation by grouting was discussed. The results indicated that the parameters obtained in simulating experiment had the certain practical significance on the designing of reparation of anti-seepage wall and perfecting the anti-seepage theory of overburden dam foundation.
Ning Bo Xie Xinghua Wu Shiqiang Geng Yangqiong
College of Water Conservancy and Hydropoxver Engineering,Hohai University, Nanjing, 210098 State Key College of Water Conservancy and Hydropoxver Engineering,Hohai University, Nanjing, 210098 Lian Yungang Technical College, LianYungang, 222000
国际会议
南京
英文
266-272
2010-09-13（万方平台首次上网日期，不代表论文的发表时间）