构造应力对采煤沉陷的影响分析

Analysis of influence of tectonic stress on mining subsidence

构造应力是影响采煤沉陷的关键性因素之一,也是构造环境理论的关键因子。本文通过ANSYS和FLAC建立相应的力学模型,进行不同构造应力下的数值模拟试验。结果表明,不同应力分布引起的地面变形和应力变化显著不同,对地面的破坏程度和影响范围差异巨大。通过构造应力对采煤沉陷的影响分析,对指导工程规划和地灾防治具有实际的参考价值。

The tectonic stress is one of the key factors that affect the mining subsidence,and it is also the key factor of the tectonic environment theory.In this paper,the corresponding mechanical model was established by Ansys and FLAC,and the numerical simulation tests under different structural stresses were carried out.The results showed that the ground deformation and stress variation caused by different stress distributions were different,and the damage degree and influence range of the ground varied greatly.Through the analysis of the influence of tectonic stress on coal mining subsidence,it had practical reference value for engineering planning and geological disaster prevention.