摘要
为保证华龙煤矿浅埋50213孤岛工作面的安全开采,采用理论结合实践的方法,提出了外部载荷与内部承载相互作用的工作面整体冲击判据。研究结论:孤岛工作面形成的覆岩空间结构及其运动是外部载荷主要来源;内部承载主要由工作面宽度和煤体强度决定;评估50213孤岛工作面无整体冲击危险。
In order to ensure the safe mining of the shallow buried 50213 isolated island working face in Hualong Coal Mine,the overall impact criterion of the interaction between external load and internal load is put forward by combining theory with practice.The research conclusions show that the spatial structure and movement of overlying rock formed by isolated island working face are the main source of external load,the internal bearing capacity is mainly determined by working face width and coal strength,it is evaluated that the 50213 isolated island working face has no overall impact hazard.
作者
岳勇
唐照成
韩向云
Yue Yong;Tang Zhaocheng;Han Xiangyun(Hualong Coal Mine,Northwest Branch of Huaibei Mining Industry Group,Shaanxi Yan'an 716002)
出处
《山东煤炭科技》
2022年第7期183-185,194,共4页
Shandong Coal Science and Technology
基金
淮南市科技计划资助项目(2021A247)。
关键词
孤岛工作面
冲击地压
覆岩空间结构
整体冲击
isolated island working face
rock burst
overburden spatial structure
overall impact
