屯兰矿12509工作面皮带顺槽切顶卸压爆破技术研究  

Research on the Technology of Belt Top Cutting and Pressure Relief Blasting in 12509 Working Face of Tunlan Mine

作　　者：赵海潮 Zhao Haichao(Tunlan Mine of Shanxi Coking Coal Group Co.,Ltd.,Taiyuan Shanxi 030200)

机构地区：[1]山西焦煤集团有限责任公司屯兰矿,山西太原030200

出　　处：《山西化工》2023年第1期89-91,共3页Shanxi Chemical Industry

摘　　要：为了解决屯兰矿12509工作面皮带顺槽工作面端头悬顶问题,需要弱化巷道顶板深部岩层的完整性和稳定性。经现场实测分析12509工作面皮带顺槽上部稳定的岩层主要是灰岩、粉砂岩和中砂岩,石灰岩坚硬稳定,难以垮落。综合考虑决定采取爆破技术切顶卸压。通过爆破技术削弱煤岩体承载的高应力,使巷道处于低应力区域。In order to solve the problem of suspended roof at the end of the 12509 working face of the belt trough in Tunlan Coal Mine,it is necessary to weaken the integrity and stability of the deep strata of the roadway roof.According to the field measurement and analysis,the stable rock strata in the upper part of the belt trough of the 12509 working face are mainly limestone,siltstone and medium sandstone.The limestone is hard and stable,and difficult to collapse.After comprehensive consideration,it is decided to adopt blasting technology for roof cutting and pressure relief.The blasting technology weakens the high stress of the coal and rock mass,and makes the roadway in the low stress area.

关 键 词：巷道顶板 爆破技术 切顶卸压 

分 类 号：TD235.4[矿业工程—矿井建设]