摘要
多数矿区或矿井进入深部开采,继而伴随着非浅部开采的复杂问题出现,故研究深部动压影响下巷道的受力情况具有十分重要的意义,所以针对上述问题以某矿己15-22040工作面为背景,采用FLAC3D数值计算软件对动压影响下巷道的受力情况进行研究,结果表明采动影响下回风巷的最大应力集中系数约为1.48,最大应力为27.9MPa,在下回采工作面前后40m范围内巷道所受采动影响最大,变形最为剧烈。
Most mining areas or mines enter deep mining,and then accompanied by complex problems of non-shallow mining,so it is of great significance to study the stress of roadways under the influence of deep dynamic pressure.Therefore,in view of the above problems,taking a mine's 15-22040 working face as the background,FLAC3D numerical calculation software is used to calculate the dynamic pressure under the influence of dynamic pressure.The results show that the maximum stress concentration factor is about 1.48 and the maximum stress is 27.9 MPa under the influence of mining,and the roadway is most affected by mining within 40m before and after the face of mining,and the deformation is the most severe.
作者
贺晓峰
He Xiaofeng(Zhenchengdi Coal Mine of Shanxi Xishan Coal and Electricity Co.,Ltd.,Shanxi,030203)
出处
《当代化工研究》
2019年第15期37-38,共2页
Modern Chemical Research
关键词
动压
采动影响
变形
dynamic pressure
mining influence
deformation
