摘要
为提高综放工作面顶煤回收率,以常村煤矿2206综放工作面开采地质条件为工程背景,采用数值模拟的方法,研究了不同采放比和不同放煤方式对顶煤冒放性的影响。研究结果表明:2206工作面采用“一采一放”的放煤方式,采高3.0 m,放煤步距0.8 m,有利于提高顶煤回收率,回收率达到82.06%。
In order to improve the recovery rate of top coal in the fully mechanized top coal caving face,taking the mining geological conditions of the 2206 fully mechanized top coal caving face in Changcun coal mine as the engineering background,numerical simulation method was used to study the influence of different mining ratios and coal caving methods on the top coal caving performance.The research results show that the 2206 working face adopts a"one mining and one drawing"coal drawing method,with a mining height of 3.0 m and a coal drawing step distance of 0.8 m,which is conducive to improving the top coal recovery rate,reaching 82.06%.
作者
王高峰
WANG Gaofeng(Changcun Coal Mine,Lu'an Chemical Group,Changzhi 046102,China)
出处
《煤炭技术》
CAS
2024年第12期94-97,共4页
Coal Technology
关键词
综放工作面
数值模拟
回收率
放煤工艺
fully mechanized caving face
numerical simulation
rate of recovery
coal caving process
作者简介
王高峰(1981-),山西临汾人,工程师,研究方向矿山压力与岩层控制,电子信箱:13041010076@163.com。
