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金属矿山 ›› 2010, Vol. 39 ›› Issue (6): 126-128+174.

• 机电与自动化 • 上一篇    下一篇

矿山采空区引起的地表变形仿真

焦军凯, 张振芳   

  1. 河北金山矿业有限公司
  • 出版日期:2010-06-15 发布日期:2010-11-09

Simulation of Ground Collapse Deformation Caused by Mined-out Area

Jiao Junkai,Zhang Zhenfang   

  1. Hebei Jinshan Mining Co.Ltd
  • Online:2010-06-15 Published:2010-11-09

摘要: 由于地下大体积空区的存在,引起了地表的沉降变形。为了预测变形趋势,建立了沉降模型去模拟变形情况。该物理模型的建立根据有限元的思想,采用不同的的岩层结构,结合有限元分析软件ANSYS,用自适应网格划分算法划分网格,采用了参数评估加权算法进行物理参数的选取。仿真结果与实际情况相符合,为地表沉降研究机制提供了依据。

关键词: ANSYS, 有限元, 地表沉降, 地下空区

Abstract: The existing large underground mined-out area leads to the surface subsidence deformation.To predict the deformation trend,the settlement model has been established to simulate the deformation.The physical model adopts the finite element ideas,by adopting different rock layer structures,and in combination with finite element analysis software ANSYS,and the adaptive meshing algorithm for meshing grid.At the same time,the parameters evaluation weighting algorithm was used to select the physical parameters.The simulation results correspond with the actual situation,thus providing a basis for the study of surface subsidence mechanism.

Key words: ANSYS, Finite element, Subsidence deformation, Underground mined-out area