摘要
针对直墙半圆拱巷道围岩应力分布问题,以淮南矿业集团潘二煤矿11221工作面上顺槽为工程背景,采用复变函数法求解了直墙半圆拱巷道围岩应力分布解析解,并分析了此回采巷道的主应力分布特征。研究结果表明:直墙半圆拱巷道拱顶应力集中程度较小,拱顶较两帮稳定。研究结果可为直墙半圆拱巷道支护设计提供理论参考。
In view of the problem of stress distribution in surrounding rock of straight wall semicircular arch roadway,the analytical solution of surrounding rock stress distribution of straight wall semicircular arch roadway is solved by complex function method based on the engineering background of the 11221 working face of Paner Coal Mine of Huainan Mining Group,and the principal stress distribution characteristics of the mining roadway are analyzed.The results show that the stress concentration of the vault of the straight wall semicircular arch roadway is small,and the vault is more stable than the two sides.The research results can provide theoretical reference for the support design of straight wall semicircular arch roadway.
作者
庞大伟
Pang Dawei(Team of No.1 Drivage Area of Paner Coal Mine,Anhui Huainan 232001)
出处
《山东煤炭科技》
2021年第11期36-37,41,共3页
Shandong Coal Science and Technology
关键词
半圆拱
巷道
应力
解析
semicircular arch
roadway
stress
analysis
