42204综放面初次见方区域应力显现特征探析  

Analysis of Stress Behavior Characteristics of First Square Area at 42204 Fully-mechanized Caving Face

作　　者：姚士茂 Yao Shimao(Bu’ertai Colliery,Shendong Coal Group Co.,Ltd.,of China Energy Group,Ordos City,Inner Mongolia 017000)

机构地区：[1]国能神东煤炭布尔台煤矿,内蒙古鄂尔多斯017000

出　　处：《江西煤炭科技》2024年第1期1-3,10,共4页Jiangxi Coal Science & Technology

摘　　要：为了探究布尔台煤矿42204综放工作面初次见方区域围岩应力特征,基于关键层理论确定了主关键层、亚关键层及其断裂步距,数值模拟和实测结果共同揭示了工作面煤壁20 m范围内压力特征明显,主运输顺槽、辅运输顺槽的应力监测呈现相同规律,巷道围岩整体处于稳定状态,工作面可安全进行回采。To explore the stress characteristics of surrounding rock in the first square area at 42204 fully-mechanized caving face in Bu'ertai Colliery,the main key strata,sub key strata and their fracture step distance are determined based on the key strata theory,and the numerical simulation and actual measurement results reveal that the pressure characteristics within 20 m of the coal wall of the working face are obvious,presenting the same law through the stress monitoring at the main and auxiliary transportation gateways with stable surrounding rock of the roadway and safety mining at the working face.

关 键 词：综放工作面 初次见方 断裂步距 

分 类 号：TD323[矿业工程—矿井建设]