摘要
文章以大采高工作面为研究对象,采用FLAC3D仿真软件对回采过程中的垂直应力及位移变化进行数值模拟分析。研究结果表明,随着工作面的不断推进,垂直应力逐渐增大并向前方转移,显示出显著的应力集中效应;上覆岩层的下沉量随工作面推进长度的增加而逐步增大,采动影响范围呈条带状向外扩散。研究成果为分析浅埋煤层大采高开采中的应力及位移变化规律提供了依据,有利于提高开采过程中的安全性和效率。
Taking the high mining face as the research object,this paper uses FLAC3D simulation software to simulate and analyze the vertical stress and displacement changes in the stoping process.The research results show that with the continuous advancement of the mining face,the vertical stress gradually increases and shifts forward,showing a significant stress concentration effect;the sub-sidence of the overlying strata gradually increases with the increase of the advancing length of the mining face,and the mining influence range spreads outward in a strip shape.The research results provide a basis for analyzing the variation laws of stress and displacement changes in the shallow-buried coal seam mining with large mining height,which is conducive to improving the safety and efficiency in the mining process.
作者
王伟
WANG Wei(Sitai Mine of Jinneng Holding Coal Industry Group Co.,Ltd.,Datong 037000,Shanxi,China)
出处
《凿岩机械气动工具》
2025年第8期98-100,共3页
Rock Drilling Machinery & Pneumatic Tools
关键词
大采高工作面
上覆岩层
垂直应力
位移变形
high mining face
overlying stratum
vertical stress
displacement deformation
