摘要
新查庄公司为延长矿井服务年限,必须开采受水威胁8煤层。由于浅部煤8已开采完毕,深部高承压水威胁且具有坚硬四灰顶板的煤8强制放顶效果好坏是决定能否实现安全开采的关键环节之一。根据新查庄矿业井下现场实际,应用深孔爆破技术解决了煤8安全开采强制放顶的难题,取得了显著的经济效益和社会效益。
In order to prolong the service life of the mine, the new chazhuang company must exploit the water threatened 8 coal seam. Due to the shallow coal 8 has been over exploited, 8 coal seam with hard grey roof is threatened by high pressure water in deep, so it is one of the key link of safe mining forced caving effect, According to the underground actual situation, the application of deep hole blasting technology solved the 8 coal mine safety forced caving problem and achieved remarkable economic and social benefits.
出处
《山东煤炭科技》
2016年第3期29-31,共3页
Shandong Coal Science and Technology
关键词
深部
承压水
坚硬顶板
强制放顶
深孔爆破
deep confined water Hard Roof overhead caving deep hole blasting
