摘要
利用数值模拟软件对马兰矿18509综采工作面的覆岩运动、矿压显现及支架阻力等作出研究。发现当工作面推进50 m时基本顶开始出现小范围的分层破坏,随着工作面的推进,基本顶的下部形成悬臂梁结构而上部形成铰接梁结构,并对矿压步距作出分析,为矿山开采安全作出贡献。
This paper uses the numerical simulation software to study the movement of overlying strata,the appearance of mine pressure and the resistance of support in 18509 fully mechanized mining face of Malan mine.It is found that when the working face advances 50 m,the basic roof begins to appear a small range of layered damage.With the advancing of the working face,the lower part of the basic roof forms a cantilever structure and the upper part forms an articulated beam structure,and the step distance of the mine pressure is analyzed,contributing to the safety of mining.
作者
杜毅飞
Du Yifei(Malan Mine of Xishan Coal Electricity Group Co.,Ltd.,Taiyuan Shanxi 030053)
出处
《山西冶金》
CAS
2020年第3期73-75,共3页
Shanxi Metallurgy
关键词
大采高
覆岩断裂
矿压显现
数值模拟
large mining height
overburden fracture
ore pressure appearance
numerical simulation