摘要
为实现迎采掘进动压巷道围岩的稳定控制,以台头煤矿3206工作面回风平巷为工程背景,分析了不同护巷煤柱宽度下煤柱应力及巷道变形情况,确定3206工作面回风平巷留设煤柱宽度为30 m。基于此,设计提出了3206工作面动压巷道围岩控制技术。技术应用后,3206工作面回风平巷顶底板、帮部变形量稳定在216 mm、149 mm左右,实现了动压巷道的稳定控制。
In order to realize the stable control of surrounding rock of dynamic pressure roadway facing mining and excavation,taking the return air roadway of the 3206 working face of Taitou Coal Mine as the engineering background,the coal pillar stress and roadway deformation under different width of coal pillar are analyzed.It is determined that the width of coal pillar in the return air roadway of the 3206 working face is 30 m.Based on this,the surrounding rock control technology of dynamic pressure roadway in the 3206 working face is designed and put forward.After the application of the technology,the deformation of the roof,floor and helper of the return air roadway in the 3206 working face is stable at about 216 mm and 149 mm,and the stable control of the dynamic pressure roadway is realized.
作者
冯根民
Feng Genmin(Xiangning County Emergency Management Bureau,Shanxi Xiangning 042100)
出处
《山东煤炭科技》
2022年第5期24-26,共3页
Shandong Coal Science and Technology
关键词
动压
掘进
巷道
支护
dynamic pressure
driving
roadway
support
