Abstract: In recent years, a large number of pumped storage power stations have been built in China, and the reservoir engineering geological conditions determine the feasibility of the construction. Through on-site geological surveys and tests, the leakage and bank slope stability of the proposed upper reservoir are evaluated. Research has shown that the project is located in an area with prominent leakage problems. It is recommended to deal with the problems of dam foundation leakage and seepage around dam during the anti-seepage of upper reservoir basin. The engineering slope is generally stable. For the broken rock body affected by faults, as well as disadvantage blocks formed by the cutting and combination of faults, interlayer joints and dominant joints, the effective support measures should be taken in time according to the excavation exposing situation.

Key words: pumped storage station, reservoir, engineering geological condition, leakage, bank slope stability

摘要： 近年来，我国修建了大量抽水蓄能电站，水库工程地质条件决定其建设可行性。通过现场地质调查和试 验，针对拟建上水库的渗漏和岸坡稳定性进行评价。经研究，工程所在区域渗漏问题突出，建议坝基渗漏和绕坝 渗漏问题在上水库全库盆防渗时一并处理；工程边坡整体稳定，部分受到断层影响的破碎岩体，以及断层、层间节 理和优势节理相互切割组合形成的不利块体，需根据开挖揭露情况及时采取有效支护处理措施。

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