动力扰动下深部围岩巷道破坏规律研究  

Study on Failure Law of Deep Surrounding Rock Roadway under Dynamic Disturbance

作　　者：宋俊鹏 Song Junpeng(Shanxi Huajin Mingzhu Coal Industry Co.,Ltd.,Linfen Shanxi 041000,China)

机构地区：[1]山西华晋明珠煤业有限责任公司,山西临汾041000

出　　处：《山西冶金》2024年第8期131-132,135,共3页Shanxi Metallurgy

摘　　要：为了解决高地应力下深部围岩失稳、破损难控制的问题,利用数值模拟软件对动载扰动下巷道围岩变形情况进行研究,发现随着时间的增长,巷道围岩变形呈现逐步增大的趋势,巷道拱顶率先出现位移变形,其次是左帮。同时对扰动强度对裂缝数量及裂纹类型进行分析,发现扰动强度的大小对裂纹断裂形式并无较大影响,只对裂纹数量有影响。In order to solve the problem of instability and difficult control of damage in deep surrounding rock under high ground stress,numerical simulation software was used to study the deformation of tunnel surrounding rock under dynamic load disturbance.It was found that with the increase of time,the deformation of tunnel surrounding rock showed a gradually increasing trend,with displacement deformation first appearing on the tunnel arch,followed by the left side.At the same time,an analysis was conducted on the impact of disturbance intensity on the number and type of cracks,and it was found that the magnitude of disturbance intensity had no significant effect on the fracture form of cracks,only on the number of cracks.

关 键 词：数值模拟 深部围岩 裂纹类型 动载扰动 

分 类 号：TD353[矿业工程—矿井建设]