摘要
分析了在顶软、底软、煤软的"三软"条件下,煤层倾角大于35°的工作面管理的难点、重点及操作要求。某矿4330工作面在初放及回采期间,没有发生冒顶、推棚、伤人事故,取得了较好的经济效益。为类似条件工作面的安全开采提供借鉴经验。
The difficult management and operation demand at 35° dip angel face in ＂three-soft＂ coal seam are analyzed.Three were not any ancient of roof fall,support collapsed and worker hurt at the period of first floor collapsing and mining at No.4330 face in a coal mine.The better economic benefit is obtained.This will apply the reference for the similar condition face.
出处
《煤炭技术》
CAS
北大核心
2009年第5期59-61,共3页
Coal Technology
关键词
大倾角
“三软”煤层
顶板管理
big dip angle
＂three-soft＂ coal seam
roof management
