相似开采条件不同长度工作面矿压显现规律对比研究  

Comparison study on appear law of mining pressure in different length of working faces with similar mining conditions

作　　者：史超 李鹏 SHI Chao;LI Peng(Zhaozhuang Coal Industry Co., LTD., Changzhi 046000,China)

机构地区：[1]赵庄煤业有限公司,山西长治046000

出　　处：《同煤科技》2017年第4期11-13,共3页Datong Coal Science & Technology

摘　　要：本文以赵庄煤矿220 m、270 m长度的工作面为研究对象,对相似开采条件不同长度工作面矿压显现特点进行了对比研究。通过对比可以看出工作面加长后上覆岩层压力明显增大,来压更加明显,导致工作面支架的工作阻力、超前支承压力峰值以及应力集中系数均有明显的增大,为赵庄煤业3号煤层的开采提供了一定的理论指导及借鉴。Taking the270m and220m working face in Zhaozhuang Coal Mine as the study object,the comparative study on the characteristics of the appear law of mining pressure in the different length of working faces with the similar mining conditions is carried on.By the contrast,it can be seen that the pressure of the overlying strata increases obviously after the lengthening of the working face,which leads to the increase of the work resistance,the advance abutment pressure peak and the stress concentration coefficient of the working face support,they provide a certain theoretical guidance and reference for No.3coal seam in Zhaozhuang Mine.

关 键 词：平均工作阻力 加长工作面 超前支承压力 

分 类 号：TD323[矿业工程—矿井建设]