摘要
为了保证采掘衔接提高煤炭资源回收率,在荣泰矿10207工作面运输巷推行单体配合铰接梁沿空留巷项目。根据沿空留巷技术经验,为确保密集单体切顶效果,减少沿空留巷以外悬臂岩梁荷载,确保沿空留巷成巷效果,在以往沿空留巷技术的基础上采用预裂爆破切顶卸压,保证了沿空留巷的成巷质量,为相同地质条件下坚硬顶板沿空留巷工作面回采切顶工艺提供了宝贵经验。
In order to ensure mining convergenceimprove the recovery rate of coal resources,single with articulated beam along goaf was conductec in 10207 working face of Rongtai Mine,in order to ensure the cutting roof effect of intensive single,pre-splitting blasting pressure relief technology was adopted,providing reference for roof cutting under similar geological condition.
出处
《煤炭与化工》
CAS
2017年第10期61-63,共3页
Coal and Chemical Industry
关键词
沿空留巷
预裂爆破
切顶
卸压
along goaf
pre-splitting blasting
roof cutting
pressure release
