基于数值模拟分析弱胶结砂岩巷道的变形特征及优化支护研究  

Study on Deformation Characteristics and Optimization Supportof Weak Cemented Sandstone Roadway Based on Numerical Simulation

作　　者：蔡庆生 秦丽媛 王丽[2,3] 付永志 冯永 CAI Qing-sheng;QIN Li-yuan;WANG Li;FU Yong-zhi;FENG Yong(Inner Mongolia University of Science and Technology,Baotou,Inner Mongolia014010;Hulunbuir University,Hailar,Inner Mongolia 021008;Research Center for Safe Mining and Comprehensive Utilization of Mineral Resources in Inner Mongolia Autonomous Region,Hailar,Inner Mongolia 021008;Inner Mongolia Gudayan Mining Group Co.,Ltd.Dayan,Inner Mongolia 021115)

机构地区：[1]内蒙古科技大学,内蒙古包头014010 [2]呼伦贝尔学院矿业与化学学院,内蒙古海拉尔021008 [3]内蒙古自治区高校矿产资源安全开采与综合利用工程研究中心,内蒙古海拉尔021000 [4]内蒙古大雁矿业集团有限责任公司,内蒙古大雁021115

出　　处：《呼伦贝尔学院学报》2023年第5期110-116,共7页Journal of Hulunbuir University

基　　金：2022年呼伦贝尔学院校级博士基金项目“陶瓷材料的强韧性能多尺度研究”(2021BS06);2021年内蒙古自治区高校矿产资源安全开采与综合利用工程研究中心科研资助项目“基于FLAC3D数值模拟分析深部高应力软岩巷道的变形特征及控制技术研究与应用”(2021KZYB06);2020年呼伦贝尔学院校级科研项目“基于呼伦贝尔地区煤矿围岩巷道变形机理及优化支护研究”(2020ZKYB11)。

摘　　要：为研究弱胶结砂岩巷道在开采过程中的变形特征,解决巷道围岩发生严重破坏、围岩稳定性较差、支护比较困难等问题,本文以内蒙古唐家会煤矿61101工作面回风顺槽为研究背景,通过FLAC3D数值模拟对原始支护方式进行分析,并针对原始支护参数进行优化,最终采用锚杆、锚索、W钢带和金属锚网混合支护。最终通过现场实践考察,对围岩顶板两帮变形量、锚杆索锚固力的大小进行监测,确定优化支护方案比较合理。本文认为此方法对改善此类巷道的支护有很好的效果,有利于保障煤矿安全高效生产。In order to study the deformation characteristics of weak cemented sandstone roadway in the mining process,and to solve the problems such as serious damage of roadway surrounding rock,poor surrounding rock stability,and difficult support.The paper takes Inner Mongolia Tangjiahui coal mine 61101 working face as the research background,the original support method is analyzed through FLAC3D numerical simulation,and then the original support parameters are optimized,and finally,the mixed support of anchor rod,anchor cable,W steel belt and metal anchor network is adopted.Finally,through the field practice investigation,the deformation amount of the two groups of anchor plates and the anchor force of the surrounding rock roof were monitored,and the optimization support scheme is reasonable.This paper has a good effect on improving the support of such roadway and ensuring the safe and efficient production of coal mine.

关 键 词：弱胶结砂岩巷道 变形特征 支护方式 数值模拟 

分 类 号：TD353[矿业工程—矿井建设]