土工膜黏土组合防渗在溧阳抽水蓄能电站中的应用  

Application of composite seepage prevention of geomembrane and clay in Liyang Pumped Storage Power Station

作　　者：宁永升[1] 冯树荣[1] 胡育林[1] 石含鑫[1] 

机构地区：[1]中国水电顾问集团中南勘测设计研究院,湖南长沙410014

出　　处：《水利水电科技进展》2009年第6期83-85,89,共4页Advances in Science and Technology of Water Resources

摘　　要：针对溧阳抽水蓄能电站上水库地质条件复杂、地下水位埋藏深、断层节理裂隙发育、库底填渣厚度变化大（0～70m）以及不均匀沉降较大等问题，要求防渗材料适应不均匀变形能力强，建议库底防渗采用柔性体形式以适应较大的不均匀变形。经设计比选，确定选用库底土工膜黏土组合防渗方案，以减少渗漏损失，减少土料弃渣，降低工程造价。Aecording to the complex geological conditions of the upper reservoir, the deep water table, the developed faults and fissures, the large thickness variation of the filling waste in reservoir bottom which ranges from 0 to 70 m and the large uneven settlement, it is required that the impervious material should have a high capacity to suit the differential deformation. The flexible body seepage prevention type is used to meet the arge uneven settlement. Through design and comparison, the combined seepage control scheme of geomembrane and clay was selected so as to reduce the leakage loss and waste slag, as well as the project＇ s cost.

关 键 词：土工膜 黏土 组合防渗 溧阳抽水蓄能电站 

分 类 号：TV441[水利工程—水工结构工程]