两煤层工作面上下重叠布置矿山压力显现及控制  

Mine Pressure Behavior and Control of Two Coal Seam Working Face Overlapping Arrangement

作　　者：邢俊 Xing Jun(Shenyang Coal Industry Group Shanxi Jinliao Mining Co.Ltd.,Shanxi Linfen 041000)

机构地区：[1]沈阳煤业集团山西晋辽矿业有限公司,山西临汾041000

出　　处：《山东煤炭科技》2021年第4期120-122,131,共4页Shandong Coal Science and Technology

摘　　要：锦富煤业有限公司03和2号煤层工作面采用外错重叠布置工作面,利用顺槽超前支护、初次来压、同期来压等矿山压力观测数据,采用来压显现程度、来压步距、来压强度分析顶板来压特征,根据观测数据获得直接顶初次垮落步距、初次来压步距及周期来压步距,合理控制开采错距,确保工作面支护稳定,保证采煤工作面安全生产。The working faces of No.03 and No.2 coal seams in Jinfu Coal Industry are arranged in staggered and overlapped way.Based on the observation data of mine pressure,such as advanced support,first weighting and synchronous weighting,the roof weighting characteristics are analyzed by weighting behavior degree,weighting step and weighting strength.According to the observation data,the first caving step,first weighting step and periodic weighting step of direct roof are obtained to control the mining offset,ensure the support stability of the working face,and ensure the safe production of the working face.

关 键 词：近距离煤层 采煤工作面 重叠外错 压力控制 

分 类 号：TD323[矿业工程—矿井建设]