宝泉抽水蓄能电站上水库防渗体系设计

宝泉抽水蓄能电站上水库系利用天然河道开挖、筑坝而成,由于库底覆盖层为透水性较强的砂卵石层,且有数条大断层穿过坝基,采用了粘土铺盖护底、沥青混凝土护岸与沥青混凝土面板坝相结合的全库盆联合防渗形式,这在国内为首次采用。宝泉电站上水库防渗体系的设计中,各种防渗结构的设计参数和接头形式,对类似工程有参考价值。

Design of Seepage Control System of the Upper Reservoir of Baoquan Pumped Storage Power Station

The upper reservoir of Baoquan Pumped Storage Power Station was formed by the excavation of natural channel and dam construction.Because the overburden in reservoir bottom is sand-cobble layer with strong permeability and there are several large fault passing through dam foundation,the way of joint seepage control of full reservoir basin was adopted,that is,the combination of the clay blanket for protecting reservoir bottom,asphalt concrete for protecting banks and the asphalt concrete facing dam was adopted.It is firstly applied at home.In the design of seepage control system of the upper reservoir of Baoquan Pumped Storage Power Station,the design parameters and joint types of various seepage control structure have a reference value for similar projects.