郭庄煤业大断面回采巷道支护设计优化与应用  

Optimization and Application of Support Design for Large-section Mining Roadway in Guozhuang Coal Industry Co.

作　　者：吴同勋 Wu Tongxun(Coal Industry Taiyuan Design and Research Institute Group Co.,Ltd.,Taiyuan,Shanxi,030000)

机构地区：[1]煤炭工业太原设计研究院集团有限公司,山西太原030000

出　　处：《江西煤炭科技》2023年第2期101-104,111,共5页Jiangxi Coal Science & Technology

摘　　要：针对郭庄煤业3#煤层回采巷道断面大的问题,采用FLAC3D数值模拟软件分析了原设计支护参数,虽然支护方案的强度达标,但支护范围不足,不能有效约束巷道围岩变形。优化设计郭庄煤业3308工作面运输巷支护参数时,在原有支护强度基础上,适当增大了支护范围,并在现场进行了应用。通过对巷道围岩变形、顶板离层及锚索受力监测,表明新支护方案可有效约束巷道围岩变形,新支护方案合理且有效。Aiming at the large section of the mining roadway in No.3 coal seam of Guozhuang Coal Industry Co.,the author proposes the optimization of support design for haulage roadway at 3308 working face by analysis of the original design support parameters through FLAC3D numerical simulation software,appropriately increasing the support range on the basis of the original support strength,which is proved to effectively restrain the deformation of the surrounding rock of the roadway by monitoring the deformation of the surrounding rock of the roadway,the separation of the roof and the force of the anchor cable.

关 键 词：大断面巷道 围岩变形 支护方案优化 数值模拟 

分 类 号：TD353.6[矿业工程—矿井建设]