摘要
以某煤矿11#煤组首采工作面为研究对象,分析了综采工作面在实施顶板弱化处理后矿山压力显现特征、顶板活动规律和工作面超前支承压力分布规律,并对初次来压期间和周期来压期间支架载荷特征进行了较为系统的分析,为该矿后续工作面回采及相近条件下煤层的回采提供了经验。
Taking the first mining face of 11# coal group in a coal mine as the research object,the paper analyzes the characteristics of strata behaviors,the laws of roof movement,and distribution laws of advancing abutment pressure in the working face after hard roof weakening.Meanwhile,the characteristics of support load during the first and periodic weighting of main roof are researched.The conclusion of paper provides experiences for follow-up mining in working face and coal seam with similar conditions.
出处
《煤矿安全》
CAS
北大核心
2013年第4期217-219,223,共4页
Safety in Coal Mines
关键词
顶板弱化
首采工作面
矿压显现
roof weakening
the first coal mining face
strata behaviors
