一、前言张河湾抽水蓄能电站位于河北省石家庄市井陉县测鱼镇南甘陶河干流上,距石家庄市90km。该电站利用已建的张河湾水库做下库,在坝上游1.2km的左岸老爷庙山顶建上库,上下两库水平距离500m,相对高差350m。预计电站装机容量100万kW,是冀南电网的主要调峰电站。电站设计中需认真考虑地下厂房与各类硐室群的稳定,上库蓄水后对原生裂隙及各种软弱带的影响,以及地下硐室群的岩爆和衬砌等与原地应力的关系。因此,在电站初设阶 I. Introduction Zhanghewan Pumped Storage Power Station is located in Shijiazhuang City, Hebei Province measuring fish Zhen Nan Gan Taohe River, away from Shijiazhuang City 90km. The hydropower station uses the built Zhanghewan Reservoir to make a depot, and builds a depot on the left bank of Laoyemiao Temple 1.2km upstream of the dam. The horizontal distance between the two reservoirs is 500m and the relative height difference is 350m. It is estimated that the installed capacity of power plants will be 1 million kW, which is the main peaking power station of Jinan Power Grid. The design of power station should consider carefully the stability of the underground powerhouse and all kinds of caverns, the influence of the upper reservoir on the primary fracture and various weak zones, and the relationship between in-situ stress and rock burst and lining of the underground cavern group . Therefore, the initial stage in the power plant