山西水利科技
山西水利科技
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SHANXI HYDROTECHNICS
2012年
4期
9-10,31
,共3页
坝体土抗剪强度%粘聚力%内摩擦角%坝体稳定分析
壩體土抗剪彊度%粘聚力%內摩抆角%壩體穩定分析
패체토항전강도%점취력%내마찰각%패체은정분석
soil shear strength of dam body%cohesion%internal friction angle%stability analysis of dam body
基于松塔水电站土石坝现场取样的固结不排水三轴剪切试验,分析了反映土体抗剪强度两个关键指标的测试结果,即四个参数:粘聚力C、内摩擦角Ф、有效粘聚力C’、有效内摩擦角Ф’,然后与土石坝主体工程初步设计中坝坡稳定分析选择的坝体土抗剪强度指标值进行了比较,并基于测试统计值的稳定分析计算结果,认为坝体填筑土的抗剪强度指标能够满足设计要求。
基于鬆塔水電站土石壩現場取樣的固結不排水三軸剪切試驗,分析瞭反映土體抗剪彊度兩箇關鍵指標的測試結果,即四箇參數:粘聚力C、內摩抆角Ф、有效粘聚力C’、有效內摩抆角Ф’,然後與土石壩主體工程初步設計中壩坡穩定分析選擇的壩體土抗剪彊度指標值進行瞭比較,併基于測試統計值的穩定分析計算結果,認為壩體填築土的抗剪彊度指標能夠滿足設計要求。
기우송탑수전참토석패현장취양적고결불배수삼축전절시험,분석료반영토체항전강도량개관건지표적측시결과,즉사개삼수:점취력C、내마찰각Ф、유효점취력C’、유효내마찰각Ф’,연후여토석패주체공정초보설계중패파은정분석선택적패체토항전강도지표치진행료비교,병기우측시통계치적은정분석계산결과,인위패체전축토적항전강도지표능구만족설계요구。
On the basis of consolidated undrained triaxial shear test of soil samples taken from construction site of earth-rock dam of the Songta Hydroelectie Station, the paper anlyzes the test results of two kinds of key parameters in regard to soil shear strength,ie four parameters:cohesion C,internal frication angle Ф,effective cohesion C'and effective internal friction angle Ф ,subsequently,conducts comparison with the shear strength indexes of soil used to analyze stability of dam slope in this earth-rock dam's preliminary desigh.According to the computation results of stability analysis using the statistical parameter values of test, the paper considers that soil shear strength indexes of earth fill can meet the design demand.