坚硬顶板弱化条件下首采工作面矿压显现规律  

Strata Behaviors Laws in the First Mining Face Under the Condition of Hard Roof Weakening

作　　者：任卫兵[1,2] 廖学东[1,2] 陈言可[1] 

机构地区：[1]安徽理工大学能源与安全学院,安徽淮南232001 [2]煤矿安全高效开采省部共建教育部重点实验室,安徽淮南232001

出　　处：《煤矿安全》2013年第4期217-219,223,共4页Safety in Coal Mines

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.

关 键 词：顶板弱化 首采工作面 矿压显现 

分 类 号：TD322[矿业工程—矿井建设]