煤矿安全2017，Vol.48Issue(6)：188-191,4.DOI:10.13347/j.cnki.mkaq.2017.06.050
承压含水层下综采工作面调斜开采覆岩破坏模拟研究
Simulation Study on Overburden Strata Failure During Regulate Inclination Mining Under Confined Aquifer
王健1
作者信息
- 1. 安徽恒源煤电股份有限公司,安徽宿州234000
- 折叠
摘要
Abstract
For preventing the support crushing and water inrush accidents during mining under unconsolidated confined aquifer in Qidong Coal Mine,failure characteristics of overburden strata during initial mining period of regulate inclination mining face were studied combining with the mining conditions of 8222 working face.Results indicated that the suspended layer of the key strata is triangular in the case of regulate inclination mining during the initial mining period,and when the large size of the mining area exposing to a certain extent,first breaking of the roof occurs and causes the partial roof weighting of the working face.With the increase of the size of the face,the main roof breaks partially,which makes the local pressure behavior area gradually transfer to the middle and the tail of working face,thus avoiding the large area and fierce weighting or even the support crushing caused by the first breaking of the roof under high water pressure.Therefore,the oblique mining has a positive meaning in the prevention of support crushing.关键词
松散承压含水层/压架突水/调斜开采/初采期/覆岩破坏特征Key words
unconsolidated confined aquifer/support crushing and water inrush/regulate inclination mining/early mining period/failure characteristics of overburden strata分类
矿业与冶金引用本文复制引用
王健..承压含水层下综采工作面调斜开采覆岩破坏模拟研究[J].煤矿安全,2017,48(6):188-191,4.
