摘要
为确定翟镇煤矿三采区集中下山巷道合理保护煤柱宽度,采用理论分析、UDEC计算机数值模拟的方法,分析了1401E工作面超前支承压力的分布规律,模拟了集中下山巷道在不同宽度保护煤柱条件下受采动影响的应力应变情况。最终确定合理的集中下山巷道保护煤柱宽度为20m,并且取得了良好的工程应用效果。
To determine the optimal coal pillar width of the third district＇s gathering dip in Zhaizhen coal mine,the front abutment pressure distribution of 1401E panel was analyzed theoretically,and the gathering dip＇s mining induced stress and strain with different coal pillar widths were simulated by the UDEC software.The gathering dip＇s optimal coal pillar width was finally determined as 20m,and it is proved to be rational in the engineering application.
出处
《中国煤炭》
北大核心
2012年第1期45-48,共4页
China Coal
基金
国家自然科学基金项目(51074165)
国家自然科学基金重点项目(50834004)
关键词
采区下山
保护煤柱宽度
数值模拟
district dip
coal pillar width
numerical simulation
