放顶煤工作面支架受力特征及分析  

CHARACTERISTICS AND ANALYSIS OF POWERED SUPPORTS FOR SUB-LEVEL CAVING METHOD

作　　者：于海涌[1] 吴凤东[1] 孟金锁[1] 金智新 阎正义 

机构地区：[1]中国矿业大学北京研究生部,煤炭科学研究总院,大同矿务局

出　　处：《煤炭学报》1995年第5期461-466,共6页Journal of China Coal Society

基　　金：煤炭科学基金

摘　　要：以放顶煤工作面实际观测资料为基础，论述了放顶煤工作面矿山压力显现的主要特征：（１）液压支架工作阻力不大于单一煤层或上分层开采时的支架工作阻力；（２）放顶煤工作面的支架外载荷普遍前移．由此提出，在放顶煤支架设计和选型过程中应注意提高支架前端的支护能力．Based on the measured data the main characteristics of ground pressure in a sub-level caving face are as the following:(1) The working resistance of powered support is not greater than that of supports used in a single coal seam or in top slice of a coal seam; (2) The external load exerted on the support used in sub-level caving face generally moves forward. Therefore, in design and selection of powered support for sub-level caving method, attention should be given to the capacity of front end of canopy.

关 键 词：放顶煤开采 矿山压力 支架受力分析 煤矿 

分 类 号：TD825.5[矿业工程—煤矿开采]