摘要
针对大平煤业工作面煤炭资源回采率低、巷道变形大及巷道维护费用高等问题,本文以大平煤业3113回风顺槽为工程背景,综合运用理论分析、数值模拟方法进行设计、优化,确定区段煤柱合理宽度为6 m,现场采用“非对称性”支护方案,有效控制了巷道围岩变形,达到了沿空掘巷支护效果,确保了3113回风顺槽的安全使用。
In view of the low coal resource recovery rate,large roadway deformation and high roadway maintenance cost at 3113 ventilation crossheading of Daping Coal Industry Co.,Ltd.,the author determines the reasonable section coal pillar width is 6 m by theoretical analysis and numerical simulation and proposes the"asymmetric"support scheme,which can effectively control the deformation of the roadway surrounding rock with good support effect of gob-side entry and ensure the safety operation of 3113 ventilation crossheading.
作者
薛朝云
Xue Chaoyun(Shanxi Daping Coal Industry Co.,Ltd.,Changzhi,Shanxi 046200)
出处
《江西煤炭科技》
2023年第3期47-50,共4页
Jiangxi Coal Science & Technology
关键词
区段煤柱宽度
沿空掘巷
围岩控制
section coal pillar width
gob-side entry
surrounding rock control
