狮泉河水电站粘土心墙土石坝掺合料最大干密度及颗分关系试验

Experiment on relationship between maximum dry density and grain size composition for mixing material of earth-rock fill dam with clay core of Shiquanhe Hydropower Station

由于狮泉河水电站粘土心墙土石坝掺合料的最大干密度受反滤料与粘土料的掺合比例、反滤料含砂率的影响较大,因此拟通过本试验确定掺合质量比在(46～54)∶(54～46)范围变化时,反滤料含砂量变化对最大干密度的影响程度及相关参数,从而确定心墙掺合料填筑的实际压实度。

So far as the mixing material for building the earth-rock fill dam with clay core for Shiquanhe Hydropower Station is concerned, the effect from the variation of the sand content for the filter material on the maximum dry density and the relevant parameters are to be determined within the variation area of the mixing mass ratio of （46 - 54） ： （54 - 46 ） through this experiment, due to the max. dry density is largely influenced by the mixing ratio of both the filter material and the clay and the sand content of the filter material, so as to determine the actual filling compactness of the mixing material of the core.