摘要
以山西西山晋兴能源公司斜沟煤矿13~#煤层(煤厚14 m)为研究背景,针对缓倾斜厚煤层双向凹字型布巷系统区段煤柱合理宽度进行研究分析,应用数值模拟法首先分析了掘进期间在不同煤柱宽度下,煤柱的屈服破坏、垂直和水平应力分布,以及顺槽顶、底板和两帮移近量,其次分析了采动期间顶、底板和两帮移近量随煤柱宽度的变化规律。
According to the research background of the 13^# coal seam that coal thickness is 14 m of Shanxi Xishan Jinxing energy company Xiegou coal mine , it has been researched and analyzed that is the reasonable width of sectional coal pillar of bidirectional concave shaped roadway layout system in gently inclined thick coal seam by numerical simulation method. Firstly, it has been analyzed that is yield failure, vertical and horizontal stress of pillar , roof to floor convergence and two-sided convergence of crossheading in different coal pillar width during driving. Secondly, it has been analyzed taht is the rule of roof to floor convergence and two-sided convergence with width of coal pillar during mining induced.
出处
《煤炭技术》
北大核心
2017年第9期75-77,共3页
Coal Technology
基金
内蒙古科技大学创新基金资助项目(2014QDL032)
关键词
厚煤层
双向凹字型布巷系统
区段煤柱
thick coal seam
bidirectional concave shaped roadway layout system
sectional coal pillar
