均质土坝坝体渗透系数测试方法(任云峰孙瑞民)http://www
cn时间: 2012-01-31 10:48:14 来源:华北水利水电学院学报放大缩小打印摘要 : 均质土坝坝体分层碾压,使坝体土层具有各向异性,坝体渗透系数kh, kv值相差较大. 通过对室内试验和现场原位试验渗透系数测试方法的分析与讨论,认为现行规程、 规范推荐的测试方法对均质土坝坝体渗透性测试存在较大误差,不适应于大坝二维、三维渗流分析要求,提出了联合测试渗透系数法,并给出了计算公式.关键词 : 渗透系数 ; 注水试验 ; 均质土坝 ; 各向异性Measuring Method for Permeability of Homogeneous Earth-filled Dam REN Yun-feng1 ,SUN Rui-min2 Abstract: Homogeneous earth-filled dam rolled by the bedded-earth method,its earth layer has anisotropy,the difference between the permeability kh and kv is big.Through analyzing of permeability measuring method from indoor and field in situ test,the results were gained that the measuring methods for permeability from appliable codes and standards exist bigger error ,and don’t suit for analyzing 2D and 3D permeability of dams. The j