辛置煤矿厚硬基本顶大巷煤柱回收工作面运输巷支护设计  

Support Design of Coal Pillar Recovery Face Transportation Roadway in Xinzhi Coal Mine

作　　者：徐文贵 Xu Wengui(Xinzhi Coal Mine,Shanxi Huozhou Coal Power Group,Shanxi,031412)

机构地区：[1]山西省霍州煤电集团有限责任公司辛置煤矿,山西031412

出　　处：《当代化工研究》2024年第6期156-158,共3页Modern Chemical Research

摘　　要：针对霍州煤电集团辛置煤矿厚硬基本顶大巷煤柱回收工作面运输顺槽支护难的问题,本文采用FLAC3D数值模拟研究方法,对运输顺槽进行分析设计。模拟结果显示:工作面回采稳定后,运输顺槽顶板塑性区最大发育深度为4.5 m,两帮塑性区最大发育深度为2 m,最终确定,工作面运输顺槽巷帮采用锚杆、网支护,顶板采用锚杆、锚索、锚网混合支护。现场实测结果表明,测点段巷道围岩顶板围岩变形稳定在350 mm,顶板变形量稳定在240 mm。In view of the difficulty of supporting the transportation gateway in the coal pillar recovery working face of the thick and hard ba-sic roof roadway in Xinzhi Coal Mine of Huozhou Coal and Electricity Group,this paper uses FLAC3D numerical simulation research method to ana-l yze and design the transportation gateway.The simulation results show that after the mining of the working face is stable,the maximum development depth of the plastic zone of the roof of the transport crossheading is 4.5 m,and the maximum development depth of the plastic zone of the two sides is 2 m.Finally,it is determined that the roadway side of the transport crossheading of the working face is supported by bolt and net,and the roof is supported by bolt,anchor cable and anchor net.The field measurement results show that the deformation of the surrounding rock of the surrounding rock of the roadway in the measuring point section is stable at 350 mm,and the deformation of the roof is stable at 240 mm.

关 键 词：厚硬基本顶 回收工作面 数值模拟 塑性区 

分 类 号：TD353[矿业工程—矿井建设]