长河坝电站大坝心墙砾石土料压实质量快速检测方法

Rapid detection technology for core gravel soil compaction quality in Chang Heba power station

目前,我国水电水利工程土石坝建设高度正处于跨越200~300 m的新阶段,为适应变形和工程面临的客观条件,200~300 m碾压式土石坝更多的采用了心墙防渗的结构形式。砾石土料具有高抗剪强度、抗渗性好和良好的压实性能,是筑坝首选防渗材料。土料压实质量检测是填筑作业的关键工序,快速检测是施工进度的有力保障。现以长河坝电站为例详细介绍了砾石土料现场检测方法,可供同类工程借鉴。

The Height of Earth rock-fill dam construction is basking in a new stage of across 200~300 m in our country now.In order to adapt to the objective conditions of deformation and engineering,most rolled earth dam in 200~300 m adopted the structure of core wall seepage control.Because of high shear strength,good permeability and good compaction performance,Gravel soil is the preferred dam seepage control material.Soil compaction quality detection is the key to the filling operation process.Rapid detection is a powerful guarantee of construction progress.With long dam power station as an example,this paper has a detailed gravel soil field detection method is introduced,which may be of reference value to similar projects.