巷道围岩螺纹钢与玻璃钢锚杆组合支护效果分析  

Analysis of the effect of combined support of rebar and FRP bolts in the roadway enclosure

作　　者：卢甲斌 Lu Jiabin(Beijing Tiandi Huatai Mining Management Co.,Ltd.,Beijing 100013,China)

机构地区：[1]北京天地华泰矿业管理股份有限公司,北京100013

出　　处：《煤炭与化工》2024年第4期36-39,共4页Coal and Chemical Industry

基　　金：天地华泰自主科技创新项目(TDHTKY2021003),(TDHTKY2022004),(TDHTKY2022007),(TDHTKY2022009)。

摘　　要：为探究玻璃钢锚杆与螺纹钢锚杆组合支护在巷道中的支护效果,以纳林河二号矿为工程背景,调研分析了该矿的工程地质条件与采掘巷道布置,提出了巷道围岩螺纹钢与玻璃钢锚杆组合支护方案。基于不同方案,应用FLAC3D,模拟分析了全螺纹钢锚杆支护、螺纹钢-玻璃钢锚杆组合支护和全玻璃钢锚杆支护3种条件下的围岩屈服破坏和围岩位移分布情况。结果表明:巷道围岩开采帮部采用玻璃钢锚杆替代螺纹钢锚杆,若玻璃钢锚杆不发生损坏,采用玻璃钢与螺纹钢锚杆组合支护,可以维护巷道围岩稳定。In order to investigate the support effect of combined support of FRP bolts and rebar bolts in the roadway,a coal mine was taken as the engineering background,the engineering geological conditions and mining roadway layout of the mine were investigated and analyzed,and a combined support scheme of rebar and FRP bolts in the roadway periphery was proposed.Based on the different schemes,FLAC3D was applied to simulate and analyze the perimeter rock yield damage and perimeter rock displacement distribution under the three conditions of full rebar bolt support,rebar-FRP bolt combined support and full FRP bolts support.The results showed that:the use of FRP bolts instead of rebar bolts in the mining gang part of the roadway perimeter rock,and the use of FRP and rebar bolt combination support can maintain the stability of the roadway perimeter rock if the damage of FRP bolts does not occur.

关 键 词：玻璃钢锚杆 螺纹钢锚杆 锚杆支护 轴力 组合支护 数值模拟 

分 类 号：TD353.6[矿业工程—矿井建设]