摘要
为了研究急倾斜煤层开采下地表沉陷的移动规律,运用求解非线性大变形问题有限差分法(FLAC3D)对急倾斜煤层开采下进行数值模拟,重点分析了岩体移动引起的地表变形。结果表明:急倾斜煤层开采下地表在走向呈对称性下沉盆地,而在倾向上呈非对称性的兜瓢形下沉盆地,地表的变形主要集中在煤层顶板方向一侧,以及最大下沉点和水平移动向煤层的上山方向偏移。
In order to study the steep seam mining under surface subsidence movement law,numerical simulation which is used to solve the nonlinear large deformation problem of the finite difference method(FLAC3D) is carried out for studying of the steep seam in this paper,focus on analysis of rock caused by the movement of the surface deformation.The results show that: steep seam mining under the surface toward symmetric sink basin,and the intention was asymmetric pocket scoop-shaped sink basin,and deformation of the surface side of the seam roof direction,as well as the maximum subsidence point and move horizontally to the coal seam uphill offset.
出处
《安徽理工大学学报（自然科学版）》
CAS
2012年第3期71-74,共4页
Journal of Anhui University of Science and Technology:Natural Science
关键词
急倾斜煤层
地表沉陷
数值模拟
steep seam
surface subsidence
numerical simulation
