基于隔水关键层的相关理论,采用ComsolMultiphysics多物理场耦合数值模拟软件建立了采动覆岩渗流的数值分析模型,对顶板岩层因上覆含水层水压力的变化而引起的位移、应力和渗流速度场变化的情况进行了数值模拟,得出了含水层水压力变化对顶板岩层各点的位移和应力影响的相关结论,为矿区顶板水害事故的防御和治理提供一些参考。 Based on the theory of key layers of water-barrier, a numerical analysis model of seepage overburden rock mining with Comsol Multiphysics multi-physics coupled numerical simulation software was established. The displacement, stress and seepage caused by the change of water pressure in the overlying aquifer The change of velocity field is numerically simulated, and the correlative conclusions about the influence of water pressure change in aquifer on the displacement and stress of roof strata are obtained, which will provide some references for the defense and treatment of roof water hazard accident in mining area.