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以山西省某煤矿矿井抽水区引起的地面沉降为例,采用多物理场耦合分析软件Comsol Multiphysics中的多孔弹性物理场接口,基于Boit固结理论,建立矿井抽水区-地面沉降流固耦合模型。通过分析计算及位移拟合,分析其产生沉降的原因以及动态降水的时间与空间效应,目的在于为今后矿井抽水区地面沉降的防治提供依据和技术指导。
Taking the land subsidence caused by a coal mine pumping area in Shanxi Province as an example, the porous elastic field interface in Comsol Multiphysics, a multi-physics coupling analysis software, is used to establish a fluid-solid coupling model of mine drainage area-land subsidence based on Boit consolidation theory. Through analyzing and calculating the displacement and fitting, the causes of the settlement and the time and space effect of the dynamic precipitation are analyzed. The purpose is to provide the basis and technical guidance for the prevention and control of land subsidence in the pumping area of the mine in the future.