大坝心墙砾石土料制备动态调整质量控制方法

Dynamic Adjustment Quality Control Method for Preparation of Gravel Soil for Dam Core

两河口水电站是中国首座在建300m级砾石土心墙堆石坝,大坝心墙采用砾石土料作为高堆石坝防渗体,其施工质量是本工程的重中之重,大坝心墙施工的重点是砾石土料制备及填筑质量控制。主要介绍了两河口水电站复杂土料场的砾石土料制备方法和措施,实现了砾石土料P5颗粒含量40%~45%的控制目标,保障了施工质量。

Lianghekou Hydropower Station is the first 300 m-class gravel soil core rockfill dam under construction in China.The dam core wall adopts gravel soil as the impervious body of the high rockfill dam.The construction quality of core wall is the top priority of the project.The focus of dam core wall construction is the quality control of gravel soil preparation and embankment.The article introduces the method and engineering measures adopted for preparation of gravel soil in the complex borrow of Lianghekou Hydropower Station which realized the control target of 40%~45% of P 5 particle content in the gravel soil material and guaranteed the construction quality of the project.