摘要
肥城矿业集团陈蛮庄煤矿3800轨道下山是八采区主要开拓运输巷道,巷道围岩以粉砂岩、泥岩为主,岩层倾角平均23°,受围岩弱面结构、高泥质围岩特性等因素影响,巷道在掘进过程中出现持续性变形现象。针对此问题,通过对3800轨道下山围岩力学性质分析,进一步合理了支护形式及支护参数,取得了较好的支护效果。
The 3800 track downhill of Chenmanzhuang Coal Mine of Feicheng Mining Group is the main development and transportation roadway in the eighth mining area.The surrounding rock of the roadway is mainly siltstone and mudstone,and the dip angle of the rock stratum is 23°on average.Affected by the weak surface structure of the surrounding rock and the characteristics of high argillaceous surrounding rock,the continuous deformation of the roadway occurs in the tunneling process.In view of this problem,through the analysis of the mechanical properties of the surrounding rock of the 3800 track,the support form and support parameters are further reasonable,and good support effect is achieved.
作者
赵浩
ZHAO Hao(Shandong Energy Feicheng Mining Group,Heze 274300,China)
出处
《煤矿现代化》
2021年第6期15-18,共4页
Coal Mine Modernization
关键词
软岩
弱结构
变形
围岩力学
soft rock
weak structure
deformation
Mechanics of surrounding rock
