摘要
山西某矿主采的6号煤层中含有厚度为120～350mm的泥岩夹层,巷道围岩变形呈现出明显的非对称性,根据巷道围岩变形及受力特征,提出巷道支护的非对称支护方案,现场实践表明,采用非对称支护方式后,巷道顶底板及两帮围岩变形得到了较好控制,巷道整体稳定性强,为矿井安全回采创造了有利条件。
The No.6 coal seam of a mine in Shanxi Province contains mudstone interlayer with thickness of 120-350mm.The deformation of surrounding rock of roadway shows obvious asymmetry. According to the deformation and acceptance characteristics of surrounding rock of roadway, the asymmetric support scheme of roadway support is put forward. The feld practice shows that the asymmetric support method is adopted. After that, the deformation of roof and foor and surrounding rock of both sides of the roadway has been well controlled, and the overall stability of the roadway is strong, which creates favorable conditions for the safe mining of the mine.
作者
杜艳春
Du Yanchun(Shanxi Fenxi Mining（Group）CO.,LTD.Lingbei Coal Mine,Shanxi,031302)
出处
《当代化工研究》
2018年第11期121-122,共2页
Modern Chemical Research
关键词
软弱夹层
巷道支护
围岩变形
weak intercalation
roadway support
surrounding rock deformation
