厚层复合顶板孤岛工作面小煤柱沿空掘巷围岩控制技术  

Surrounding Rock Control Technology for Small Pillar Roadway Driving along Gob of Isolated Working Face with Thick Compound Roof

作　　者：展勤建 陈宾 郝光生 

机构地区：[1]中煤科工集团重庆研究院有限公司,重庆400037

出　　处：《矿业安全与环保》2015年第2期52-55,60,共5页Mining Safety & Environmental Protection

摘　　要：通过理论分析、数值模拟,研究了孤岛工作面塑性区及垂直应力分布情况,确定出工作面预留煤柱合理宽度为8.0 m,模拟了不同支护方案下巷道围岩塑性区分布情况。结合锚索梁钢带及注浆联合支护方案、矿山压力观测数据,分析了孤岛工作面小煤柱沿空掘巷的矿山压力显现特征,可为后续孤岛工作面沿空掘巷围岩控制提供一定的参考。In this paper, study was made on the distribution of the plastic zone and the vertical stress in the isolated working face by theoretical analysis and numerical simulation, a 8. 0 m-mide coal pillar to be reserved for such face was determined and the distribution of the plastic zone of the roadway surrounding rock in different support scheme was simulated. Based on the combined support scheme using anchor cable, steel strip and grouting and the mine pressure observation data, analysis was carried out on characteristics of ground behaviours of the small coal pillar roadway driving along the gob of the isolated working face, which can provide a certain reference for the surrounding rock control of the roadway driving along the gob of the subsequent isolated face.

关 键 词：孤岛工作面 塑性区 小煤柱 数值模拟 围岩控制 联合支护 

分 类 号：TD323[矿业工程—矿井建设]