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鉴于周宁水库下游较远距离处的地下厂房系统的排渗优化设计方案及水力劈裂安全分析的重要性,在分析周宁水电站地下厂房系统的水文地质工程地质条件基础上,分析了稳定渗流有限元计算基本格式,构建了各向异性介质的排水孔模型及地下厂房系统的渗流有限元计算模型,并将该模型运用到周宁水电站地下厂房系统10种渗排组合方案中,进而评价了地下工程的水力劈裂安全性,为地下厂区建筑物结构及渗控布置的设计提供最优方案,可为类似工程的渗控布置提供参考。
In view of the optimization design of underground plant system and the importance of hydraulic fracturing safety analysis of the underground powerhouse system at the longer distance downstream of Zhouning Reservoir, based on the analysis of hydrogeological engineering geological conditions of the underground powerhouse system of Zhouning Hydropower Station, The finite element method was used to construct the finite element model of the drainage hole of the anisotropic medium and the seepage flow of the underground powerhouse system. The model was applied to 10 kinds of percolation combination schemes of the underground powerhouse system of Zhouning Hydropower Station. Then, The hydraulics splitting safety of the underground project provides the optimal plan for the design of the building structure and seepage control arrangement in the underground factory area, which can provide a reference for the seepage control arrangement of similar projects.