摘要
复合土工膜广泛应用于土石坝、河道整治的滤层防渗,滤层中加入了土工膜后,其间的摩擦系数变化较大,直接影响到工程的抗滑稳定.针对土工膜与土体接触的多种情形,研究证明了土工膜与接触料之间的摩擦系数小于接触料自身的摩擦系数,土工膜横丝向的摩擦系数大于顺丝向的摩擦系数,及土工膜与接触料之间的摩擦系数与接触料的颗粒级配及饱水状态有关,此结果可为同类工程参考.
The composite geomembance core is widely used in earth-rock dam and filter layers＇seepage in river couse dredging. The friction coefficient between the filters is changed when the composite geomembrance is added into as an impervious material and the stability of engineering is affaeted. According to shear tests, the friction coefficient of the composite geomembranee is studied. Based on the test results,the friction coefficient between the composite geomembranee and soil is smaller than the friction coefficient of composite geomembranee,and the friction coefficient of horizontal wire is larger than of the parallel wire between the composite geomembranee and soil, the difference of the grading distribution and the content of the soil can influence the friction coefficient between the composite geomembranee and soil,it is a reference for the similar engineering.
出处
《华北水利水电学院学报》
2007年第1期32-35,共4页
North China Institute of Water Conservancy and Hydroelectric Power
关键词
复合土工膜
摩擦系数
抗滑移定
composite geomembranee core
frieition coefficient
stability defending from sliding
