摘要
本文以晋北煤业公司综采面过空巷为切入点,对空巷充填支护参数进行了数值模拟分析;通过工程实践,验证了4 MPa充填体强度能够有效控制围岩变形;对液压支架阻力进行监测,数据表明充填支护取得较好效果;空巷充填支护既提高矿井回采率,也增加了经济效益,推广前景良好。
Taking fully mechanized coal mining face of Jinbei Coal Industry Co.as an example,the paper has a numerical simulation analysis on the filling support parameters of the abandoned roadway,verifies that the strength of 4 MPa filling body can effectively control the deformation of surrounding rock through engineering practice,and monitors the resistance of the hydraulic support,which proves that the abandoned roadway filling support not only improves the mine recovery rate,but also increases the economic benefit,and the promotion prospect is good.
作者
安冀鸿
An Jihong(Jinbei Coal Industry Co.,Huozhou Coal and Electricity Group,Jingle,Shanxi 035100)
出处
《江西煤炭科技》
2020年第3期122-125,共4页
Jiangxi Coal Science & Technology
关键词
空巷
充填支护
数值模拟
围岩变形
abandoned roadway
filling support
numerical simulation
surrounding rock deformation