深部巷道支护方案数值模拟优选及应用  

Selection of deep roadway support schemes by numerical simulation and its application

作　　者：田全虎 和学衡 许卫军 王能跃 彭伟 Tian Quanhu;He Xueheng;Xu Weijun;Wang Nengyue;Peng Wei(Guizhou Jinfeng Mining Ltd.;School of Civil and Resources Engineering,University of Science and Technology Beijing)

机构地区：[1]贵州锦丰矿业有限公司 [2]北京科技大学土木与资源工程学院

出　　处：《黄金》2023年第2期8-13,共6页Gold

基　　金：国家重点研发计划项目(2018YFC1900603)。

摘　　要：随着矿山地下开采深度日益增大,深部巷道地压管理是实现井下安全作业的重要保证。针对锦丰金矿深部开采巷道稳定性问题,提出了3种不同的支护方案,采用Flac^(3D)软件对3种支护方案与原方案进行模拟,分别从x方向、z方向和塑性区3个方面对4种支护方案进行分析,确定了采用钢网+树脂锚杆+纤维混凝土的支护方案。通过现场支护工业试验验证了数值模拟结果的准确性与可行性。With the increasing depth of mining in mines,the management of deep roadway ground pressure is an important guarantee for the realization of safe underground operations.In terms of the stability of the deep mining roadway in Jinfeng Gold Mine,3 different support schemes are proposed.The 3 schemes and the original scheme are simulated using Flac^(3D)numerical simulation software,and the 4 are analyzed from the x direction,the z direction,and the plastic zone respectively.The supporting scheme of steel mesh+resin bolt+fiber concrete was determined.And the accuracy and feasibility of the numerical simulation results are verified through the actual onsite supporting test.

关 键 词：深部开采 巷道支护 地压管理 稳定性 数值模拟 

分 类 号：TD353[矿业工程—矿井建设]