建筑物下开采煤层顶板变形破坏特征数值模拟  

Numerical Simulation of the Deformation and Failure Characteristics of Coal Seam Roof under Buildings

作　　者：温兴林 王如猛[3] WEN Xing-Lin;WANG Ru-meng(School of Mining and Safty Engineering,Shandong University of Science and Technology,Qingdao Shandong,266590;Key Laboratory of Mine Disaster Prevention and Control of Ministry of Education,Shandong University of Science and Technology,Qingdao Shandong,266590;Binyang Combustion Co.,Ltd.,Binzhou Shandong,251800)

机构地区：[1]山东科技大学矿业与安全工程学院,山东青岛266590 [2]山东科技大学,矿山灾害预防控制教育部重点实验室,山东青岛266590 [3]山东滨化滨阳燃化有限公司,山东滨州251800

出　　处：《山西大同大学学报（自然科学版）》2021年第5期93-96,共4页Journal of Shanxi Datong University(Natural Science Edition)

基　　金：国家自然科学基金资助项目[51674158]。

摘　　要：以葛亭煤矿的地质条件为基础,通过FLAC3D数值模拟软件分析了某工作面采动推进过程中煤层顶板围岩垂直方向应力场、塑性破坏区以及位移场的变化情况。结果表明:随着工作面开采的推进,煤层顶板围岩垂直方向的最大应力值、塑性破坏深度以及上覆岩层的位移值逐渐增大,距煤层顶板越近的岩层越敏感,变化越大,并且受到岩石组成、岩性、推进距离、埋深、采高和开采方式的影响。In this paper,on the basis of Geting coal mine geological conditions,through FLAC3 Dnumerical simulation software,the changes of vertical stress field,plastic failure area and displacement field of coal seam roof surrounding rock during mining advancement of a working face are analyzed.The results show that with the advance of working face mining,the maximum stress value,plastic failure depth and displacement value of overlying strata in the vertical direction of coal seam roof surrounding rock gradually increase.The closer the rock stratum is to the coal seam roof,the more sensitive and the greater the change is,and it is affected by rock composition,lithology,advance distance,buried depth,mining height and mining mode.

关 键 词：建筑物下 塑性破坏 应力场 

分 类 号：TD712[矿业工程—矿井通风与安全]