高河煤矿回风巷围岩变形特征与巷道支护设计

Surrounding rock deformation characteristics and roadway support design of the return wind roadway of Gaohe Mine

针对高河煤矿煤岩层的地质赋存情况,采用数值模拟软件FLAC3D对该矿W1309回风巷围岩变形特征和应力分布规律进行研究分析,有针对性对支护方案进行设计。应用结果表明:围岩总体离层量较小,对巷道围岩表面位移具有很好控制作用,能够满足矿井安全生产需求。

Based on geological occurrence of coal bed in Gaohe Mine,numeral simulation software FLAC3D was adopted to study W1309 air return roadway surrounding rock deformation features and stress distribution,the support plan was designed.The application result showed that the total amount of surrounding rock separation was small,with good control of roadway surrounding rock surface displacement,meeting the needs of safe mining.