摘要
以云冈矿8#煤层受陷落柱影响的3条大巷为研究对象,进行受陷落柱影响区巷道支护优化设计研究。分析了3条大巷原有支护方式与围岩变形的主要原因,针对支护方式存在的不足,设计采用锚杆索架棚与喷浆联合支护方式。优化后有效控制巷道围岩的变形,巷道没有发生剧烈变形和破坏。
Taking three main roadways affected by collapse column in No.8 coal seam of Yungang Coal Mine as the research object,the optimization design of roadway support in the area affected by collapse column is studied.This paper analyzes the main reasons of the original support mode and surrounding rock deformation of the three main roadways.In view of the shortcomings of the support mode,the combined support mode of bolt cable shed and shotcrete is adopted.After optimization,the deformation of the surrounding rock of the roadway is effectively controlled,and the roadway has no severe deformation and damage.
作者
郝占玺
Hao Zhanxi(Yungang Mine,Shanxi Datong Coal Mine Group,Shanxi Datong 037017)
出处
《山东煤炭科技》
2020年第11期6-8,共3页
Shandong Coal Science and Technology
关键词
巷道
陷落柱
支护
优化
roadway
collapse column
support
optimization
