浅埋大采高工作面顺槽煤柱优化研究

Research on Width Optimization of Gate Pillar for Large Mining Height Face in Shallow-buried

以某矿浅埋大采高14204综采工作面为工程背景,对顺槽预留煤柱合理宽度进行研究。结果表明:当预留煤柱宽度由19.2 m优化到17.2 m时,煤柱的弹性核宽度、煤柱支承压力分布及顺槽变形没有发生太大变化,且能够保证工作面回采过后煤柱及辅运顺槽的安全稳定。

Takes large mining height fully mechanized face of 14204 in shallow-buried in a mine as background, researching the reasonable width of reservation coal pillar. The study show that： the width of elastic and abutment pressure distribution of coal pillar and the deformation of crossheading are not too big change when the width of coal pillar is 19.2 m optimize to 17.2 re,it enable to ensure the security and stability of coal pillar and crossheading.