回龙抽水蓄能电站上库渗流模拟计算与防渗新工艺  

Seepage calculation for upper reservoir of Huilong Pumped Storage Power Station and new technique for seepage control

作　　者：吴海亮[1] 牛贺道[1] 张有山[1] 

机构地区：[1]黄河勘测规划设计有限公司,河南郑州450003

出　　处：《水利水电科技进展》2006年第1期54-56,69,共4页Advances in Science and Technology of Water Resources

摘　　要：将回龙抽水蓄能电站上库裂隙岩体分为主干裂隙系统和其间的裂隙岩块系统,构成具有导水和贮水双重功能的水文地质体,建立双重裂隙系统三维渗流数值模型进行渗流计算,为库盆采取全封闭防渗措施及防渗新工艺提供了决策依据。经过优化分析,上库采用了在坝前及构造带浇筑钢筋混凝土面板、其余部位挂网喷混凝土的全封闭组合防渗新工艺,降低了工程投资。通过现场喷混凝土试验验证,各项性能指标均满足设计要求。The rock mass of the upper reservoir of the Huilong Pumped Storage Power Station was divided into the dominating and subordinate fracture system, thus, the hydrogeologieal structure with the function of water transmission and water storage was constructed. A three-dimensional numerical model for seepage calculation was developed for the double fracture system, providing a basis for decision-making in adoption of full-closed anti-seepage measure and new techniques for seepage control in reservoir area. Based on an optimal analysis, the placement of reinforced concrete slab was adopted in construction of structural belt and in front of the dam, and a new full-closed combined anti-seepage technique with reinforced meshes hanged for shotcrete was adopted in the rest parts. The use of the techniques reduces the engineering investment, and all the indexes of shotcrete meet the design requirement in field experiment.

关 键 词：渗流 双重裂隙 喷混凝土 回龙抽水蓄能电站 

分 类 号：TV223.4[水利工程—水工结构工程]