摘要
杜儿坪矿73903工作面付巷位于上煤层区段煤柱下方,围岩应力较高,变形严重,现有支护方案不能有效维护巷道围岩稳定。本文利用理论分析和FLAC3D数值模拟软件,研究上煤层区段煤柱下底板垂直应力分布规律,提出非对称支护方案,利用数值模拟的方法,确定具体支护参数,在现场实践中取得良好效果,为类似条件下回采巷道支护提供参考。
The roadway of73903working face in Duerping Coal Mine is located under the pillar of the upper coal seam section,higher surrounding rock stress and deformation is serious,the existing support scheme can't effectively maintain the stability of roadway surrounding rock,this paper,by using theoretical analysis and FLAC^3D numerical simulation software,the research on coal seam section of vertical stress distribution of floor under coal pillar and asymmetric support scheme is put forward,the method of using numerical simulation,determine the specific supporting parameters,stoping roadways support to provide the reference for the similar conditions.
作者
田城伙
Tian Cheng-huo(Xishan Coal Power (Group) Co.,LTD.,Shanxi Taiyuan 030000)
出处
《山东煤炭科技》
2018年第12期31-33,共3页
Shandong Coal Science and Technology
关键词
近距离
煤层
支护
设计
close-distance
seams
support
design
