窄煤柱综放回采巷道围岩稳定性分析及控制技术  

Stability analysis and control technology of surrounding rock in fully mechanized mining roadway with narrow coal pillars

作　　者：王虎胜[1,2] 黄肖[1] 席朝东 杨亚峰[1] 贺冲冲 刘斌慧[1,3] 

机构地区：[1]中国矿业大学(北京)资源与安全工程学院,北京市海淀区100083 [2]山西潞安矿业(集团)有限责任公司,山西省长治市046100 [3]中国矿业大学(北京)煤炭资源与安全开采国家重点实验室,北京市海淀区100083

出　　处：《中国煤炭》2015年第9期50-53,57,共5页China Coal

基　　金：煤炭资源与安全开采国家重点实验室大学生科技创新计划基金项目(SKLCRSM14CXJH04)

摘　　要：基于郭庄煤矿2304综放面运输巷具体地质及生产条件,采用数值模拟对不同煤柱宽度下沿空掘巷围岩应力分布特征进行深入分析。通过构建综放沿空掘巷弧形三角块结构模型,揭示综放面沿空掘巷围岩稳定性机理。根据现有巷道支护理论,提出树脂加长锚固高强锚杆支护系统并进行锚索补强的围岩控制技术。现场实践应用表明:支护方案对综放沿空掘巷围岩变形控制效果显著。Based on the geological and production conditions of haulage roadway at No.2304 fully mechanized caving face in Guozhuang Coal Mine, the stress distribution characteristics of surrounding rocks in gob-side entry driving with different coal pillar width were deeply analyzed by numerical simulation. Through building the arc triangular block structure model for gob-side entry driving in fully mechanized caving face, the mechanism of the surrounding rock stability was revealed. According to the present roadway support theories, the surrounding rock control technology was proposed, which is a resin extended and high-strength rock bolting and anchor ca- ble reinforcement system. Field practical application showed that the supporting scheme had obvi- ous effect on surrounding rock deformation control in gob-side driving entry of the fully mecha-nized caving face.

关 键 词：综放工作面 沿空掘巷 窄煤柱 应力分布特征 围岩控制 

分 类 号：TD353[矿业工程—矿井建设]