摘要
汝箕沟煤矿32212(1)工作面直接顶缺失,老顶为灰白色粗粒石英砂岩,致密坚硬,开采过程中大面积悬顶严重威胁矿井安全生产,损毁支架立柱而造成了停产。通过进行坚硬顶板控制技术研究与应用,采用工作面深孔+顺槽深孔爆破放顶,成功避免了大面来压的顶板灾害,并积累了宝贵的经验及相关技术。
The immediate roof in Rujigou coal mine 32212（1） working face is missing,the main roof is gray coarse-grained quartz sandstone,dense and hard,a large area hanging arch in the mining process seriously threat to safety production of mine,which will damage support column and cause production halts.Through the research and application of hard roof control technology,using working face deep-hole ＋ crossheading deep-hole blasting caving roof,the roof disaster of large-area roof weighting is successfully avoided.Precious experience and related technologies are accumulated.
出处
《煤矿安全》
CAS
北大核心
2012年第B10期92-96,共5页
Safety in Coal Mines
关键词
坚硬顶板
控制技术
顶板来压
工作面深孔爆破
顺槽深孔爆破
强制放顶
hard roof
control technology
roof weighting
deep-hole blasting in working face
deep-hole blasting in crossheading
forced roof caving
