摘要
为解决综放工作面沿空留巷煤柱宽度确定难的问题,采用理论计算和数值分析相结合的方法对高河煤矿E1303工作面沿空留巷的煤柱宽度进行计算分析,确定其合理煤柱宽度不得低于36 m,并提出增加目前E1303工作面保护煤柱宽度,以保障沿空留巷围岩的稳定性。
In order to solve the problem of difficulty in determining the width of coal pillars left behind in the island fully mechanized caving face,the width of Gaohe coal mine E1303 working face gob-side coal pillars are calculated and analyzed by using the combination of theoretical calculations and numerical analysis,and it determines that the width of reasonable pillars should not be less than 36 m.It is also proposed to increase the width of the currently protected coal pillars to ensure the stability of the roadway surrounding rock.
作者
刘捷
王峰
LIU Jie;WANG Feng(School of Mining Engineering,Shanxi Datong University,Datong 037003,China;Shanxi Gaohe Energy Co.,Ltd.,Changzhi 047100,China)
出处
《煤炭技术》
CAS
2018年第10期70-72,共3页
Coal Technology
关键词
沿空留巷
煤柱宽度
理论计算
数值模拟
gob-side
coal pillars width
theoretical calculation
numerical simulation
