多孔介质含水层疏水引起的地表下沉研究

Study on the surface subsidence owing to drainage in porous aquifers

研究含水层疏水及采矿引起的地表下沉对地面建（构）筑物的保护有重要意义。本文以孔隙弹性理论为基础，对多孔介质含水层疏水引起的地表下沉进行了分析，同时应用有限元方法耦合计算了多孔介质含水层疏水及采矿引起的地表下沉。

Based on poroelasticity the surface subsidence owing to drainage in porous aquifers was studied. A finite element model with coupling stress and flow for fractured porous media was developed. The model was applied to examine permeability changes, water inflow and surface subsidence in a coal mine.