观音岩水电站大坝心墙反滤料Ⅱ平铺立采堆存参数研究

Study on Parameters of Tiling and Storage of Core Wall Filter MaterialⅡin Guanyinyan Hydropower Station

金沙江观音岩水电站右岸大坝没有布置反滤料加工系统,反滤料需外购并进行堆存。为了获得反滤料的最佳平铺堆存参数,笔者通过选取3种不同参数方案进行反滤料平铺立采堆存现场试验以及颗粒分析试验,得到了符合反滤料Ⅱ的技术要求和颗粒级配设计包络线范围要求且可用于指导现场平铺堆存的参数。该方案对类似工程具有借鉴意义。

The right bank dam of Guanyinyan Hydropower Station on Jinsha River is not equipped with filter material processing system,so the filter materials need to be purchased and stored.In order to obtain the best tiling and storage parameters of filter materials,three different parameter schemes were selected to carry out the field test and particle analysis test.The parameters that meet the technical requirements of filter materials II and the envelope range of particle gradation design and can be used to guide the field tiling and storage were obtained.The scheme can be used for reference in similar projects.