煤矿安全2012，Vol.43Issue(5)：157-159,3.
混凝土填充墙支护下沿空留巷稳定性分析
Analysis of Stability of Gob-side Entry Retaining Under Concrete Filled Wall Support
任智敏 1王神虎1
作者信息
- 1. 山西煤炭职业技术学院,山西太原030031／太原理工大学采矿工艺研究所,山西太原030024
- 折叠
摘要
Abstract
In order to reveal strata-pressure behavior laws of gob-side entry retaining under concrete filled wall support,and control rock deformation effectively,the retained roadway＇s stability is researched by numerical calculation based on geology and mining conditions of a mine.The results indicate that rock stress of gob-side entry retaining shows cyclical changes with advancing of coal workface;the pressure of surrounding rock is more intense in 20m ranges of roadway after mining,which is the key support region.The deformation of surrounding rock becomes larger with advancing of coal workface,and the displacement of laneway＇s side is smaller,the sinkage of roof is bigger.It shows that concrete filled wall support is good for stability of laneway＇s side,but is not good for roadway roof.关键词
沿空留巷/数值模拟/巷道稳定性/混凝土填充墙Key words
gob-side entry retaining/numerical simulation/roadway stability/concrete filled wall分类
矿业与冶金引用本文复制引用
任智敏,王神虎..混凝土填充墙支护下沿空留巷稳定性分析[J].煤矿安全,2012,43(5):157-159,3.
