摘要
针对王庄煤矿43M1孤岛短壁综放工作面护巷煤柱赋存特征,采用理论分析、数值模拟并结合现场实测的方法,研究不同护巷煤柱宽度条件下的巷道围岩稳定性,结果表明,43M1工作面护巷煤柱宽度临界值为17 m。研究结果对于类似条件下煤柱宽度留设、巷道布置及支护参数选择提供了技术经验和理论支持。
To counter the occurrence characteristics of the chain pillars in No. 43M1 isolated shortwall fully mechanized caving face in Wangzhuang Coal Mine, study was made on the roadway surrounding rock stability under different width conditions of the chain pillars by theoretical analysis, numerical simulation and site measurement. The results showed that the critical value of the chain pillar width in No. 43M1 working face was 17m, and these research results can provide theoretical basis and technical experience for the coal pillar width determination, the roadway arrangement and the choice of supporting parameters under similar conditions.
出处
《矿业安全与环保》
北大核心
2013年第6期32-35,共4页
Mining Safety & Environmental Protection
基金
2012年度"研究生实践与科研创新课题"项目(GSF121105)
关键词
孤岛短壁工作面
综放工作面
护巷煤柱
数值模拟
现场实测
isolated shortwall face
fully mechanized caving face
chain pillar
numerical simulation
site measurement
