小保当矿首采面回风巷支护优化研究应用  

Research and Application of Support Optimization of Return Air Roadway of First Mining Face of Xiaobaodang Mine

作　　者：丁彦雄 DING Yan-xiong(Shaanxi Coal Group Xiaobaodang Coal Co.,Ltd.,Yulin 719300,China)

机构地区：[1]陕煤集团小保当矿业有限公司,陕西榆林719300

出　　处：《煤炭技术》2020年第10期18-21,共4页Coal Technology

摘　　要：以小保当112201工作面内回风顺槽为工程背景,经过理论分析,对原有支护进行优化设计,降低成本的同时确保支护可靠有效。经理论分析得出原支护系统失稳时的质点峰值速度为1.25 m/s,大于顶板断裂来压时巷道围岩质点的峰值速度(1.05 m/s),因此判断原支护参数还有优化核减的余地,并对支护参数进行了合理优化,降低支护成本,对可能存在的锚固盲区给出了补强方案。Based on the engineering background of 112201 working face in Xiaobaodang mine,through theoretical analysis,the original support is optimized,reduce cost and ensure support reliable and effective at the same time.The results show that the peak velocity of the particle in the instability of the original support system is 1.25 m/s,which is greater than the peak velocity of the particles in the surrounding rock of the roadway when the roof is fractured and pressed(1.05 m/s).The support parameters are optimized reasonably,the support cost is reduced,and the reinforcement scheme for the possible anchorage blind area is given.

关 键 词：支护优化 扰动峰值速度 锚固补强 

分 类 号：TD35[矿业工程—矿井建设]