卧龙湖煤矿沿空留巷巷旁充填技术应用  

Backfilling technology for gob-side entry retaining in Wolonghu coal mine

作　　者：王腾[1] 潘凡[1] 李冬伟[1] 李亚楠[1] 

机构地区：[1]中国矿业大学矿业工程学院,江苏徐州221600

出　　处：《煤炭工程》2016年第5期40-42,46,共4页Coal Engineering

摘　　要：结合卧龙湖煤矿8102工作面煤层开采的具体工程条件,运用理论计算、数值分析和工程实践相结合的研究方法,分析了8102工作面沿空留巷顶板覆岩运移规律、围岩位移变化及应力分布特征。理论与数值模拟结果表明:8102工作面巷旁充填体在顶板活动过渡期和后期受其影响较大,支护阻力应大于13.5MN;当充填体宽度为3m、强度为5.3MPa时,技术和经济效益最佳。工程应用结果表明,留巷顶板下沉量最大148mm,两帮移近量最大160mm,围岩变形较小,该充填技术在8102工作面风巷沿空留巷得到成功应用。According to the specific engineering background of 8102 working face in Wolonghu coal mine, the paper analyzes the movement characteristics of overlying strata,displacement of the surrounding rock,and the stress distribution through theoretical and numerical analysis and engineering practice. Results show that, backfilling mass beside the roadway is seriously influenced by the roof movement in the transition and final period and the supporting resistance in this condition should be set over 13. 5MN; the best technical and economic benefits can be achieved using the backfill mass with 3m width of and 5. 3MPa strength. The in- situ monitoring proves the successful application of this technology in8102 working face,the max roof settlement is 148 mm,and the max two- side convergence is 160 mm.

关 键 词：沿空留巷 充填技术 覆岩运动 支护阻力 

分 类 号：TD353[矿业工程—矿井建设]