某水电站心墙料渗透试验研究及分析

The Core Wall Material Permeability Test Study and Analysis of a Hydropower Project

通过对某水电站大坝心墙土料的室内试验,分析了土料的颗粒大小、塑性指数、最大干密度、最优含水率及渗透系数的相互影响规律,除个别土料的塑性指数略大于规范的要求外,其余指标均满足相关规范对大坝心墙土料的要求,具有较好的渗透稳定性,可作为大坝心墙的防渗土料。

This paper analyses the laws of mutual influence of grain size, plasticity index, max. bulk density, optimum percent moisture content and permeability coefficient of earth material. The analysis reveals that the indexes meet the requirements of a dam core wall earth material according to the relevant specifications and the material is of high permeability and can be used for the dam core wall except that the plasticity index of some earth material is a bit higher than that required in the specification.