摘要
通过对某厚土层覆岩的煤矿在开采前进行数值试验,为该矿的开采工艺及设备选型提供依据,然后对首采工作面进行矿压观测,分析了工作面顶板的断裂破坏、来压强度,压力分布状态等,对研究该地区浅埋厚土层覆岩的煤矿开采提供可靠的参考依据。
A numerical test on the coal mine with thick layer of earth is carried out to provide basis for mining technology and equipment selection.And then,the overburden rock pressure for the first work face is measured,the work face roof fracture damage,pressure intensity,pressure distribution,and so on are analyzed.Reliable reference is provided to research coal mine technology with shallow overburden and thick layer of earth in that region.
出处
《地下空间与工程学报》
CSCD
北大核心
2009年第6期1321-1324,共4页
Chinese Journal of Underground Space and Engineering
基金
国家973项目,煤岩瓦斯动力灾害的动力学演化机理(2005CB221504)
关键词
厚土层覆岩
浅埋煤层
矿压显现规律
thick layer of earth
shallow overburden coal mine
law of rock pressure
