回龙电站下水库防渗方案选择及效果分析  

Analysis on the Choice of Impervious Scheme of the Lower Reservoir of Huilong Power Station and Its Effects

作　　者：王贵军[1] 万国红 符新阁[1] 

机构地区：[1]黄河勘测规划设计有限公司,河南郑州450003 [2]国网新源控股有限公司回龙分公司,河南南阳473000

出　　处：《人民黄河》2011年第11期123-124,127,共3页Yellow River

摘　　要：基于回龙抽水蓄能电站下水库库区水文地质条件及渗漏情况评价,进行三维有限元渗流计算,通过方案比选提出了帷幕防渗方案。灌浆帷幕取样和压水试验质量检查结果表明:岩体的完整性有很大提高,岩体透水率显著减小。根据工程实践,灌浆的临界压力并不完全取决于岩体埋深,主要取决于岩石强度和岩体完整性,在可控条件下岩体劈裂对灌浆效果有利。Based on the evaluation of hydrogeological conditions and leakage of the lower reservoir of Huilong Pump Storage Power Station,the impervious curtain is taken forward by schemes comparison with 3D finite element seepage calculation.The results of grouting curtain samples and pressure water test check show that the rock mass intactness is improved by a great degree,and the rock mass permeable rate is reduced obviously.According to engineering practice,the critical pressure of grouting is decided not only by the rock mass depth,but also by the rock strength and rock mass integrity.In addition,rock mass splitting is advantageous for the grouting effect.

关 键 词：防渗 地质条件 岩体劈裂 透水率 帷幕灌浆 回龙电站 

分 类 号：TV223.4[水利工程—水工结构工程]