可溶岩地区抽水蓄能电站主要工程地质问题探讨

Discussion on Major Engineering Geological Problems of Pumped-storage Power Stations in Soluble Rock Areas

为适应新型能源体系构建的需要,抽水蓄能电站规划和建设在全国普遍展开,有相当数量的站点布置在可溶岩地区。与常规水电站不同,抽水蓄能电站对水库渗漏、地下洞室围岩质量等要求更高,因而对工程地质勘察工作也提出了较高的要求。在总结抽水蓄能电站建设和工程地质勘察经验的基础上,针对可溶岩地区抽水蓄能电站建设面临的水库岩溶渗漏、岩溶库基稳定、地下水顶托、岩溶洞段地下洞室围岩稳定等主要工程地质问题进行了探讨,可供相关人员参考。

In order to meet the needs of building the new energy system,the planning and construction of pumped-storage power stations are carried out throughout the country,as a result,a number of pumped-storage power stations are planned to be constructed in soluble rock areas.Compared with conventional hydropower stations,the pumped-storage power stations have higher requirements for reservoir leakage and underground cavern rock mass quality,resulting in higher requirements for engineering geological investigation.On the basis of summarizing the experiences in the construction of pumped-storage power stations and engineering geological investigation,the major engineering geological problems such as reservoir karst leakage,karst reservoir foundation stability,groundwater top lift and surrounding rock stability of underground caverns of pumped-storage power stations in soluble rock areas are discussed for reference of relevant personnel.