摘要
简述了深部软岩巷道支护技术的研究现状,分析了深部软岩巷道的变形机理.通过FLAC 3D有限元差分软件对平煤股份六矿三水平戊二采区轨道上山的原始支护方案及改进方案进行了数值模拟.通过对比两者的位移、破坏区及应力场分布,分析了“锚网喷+注浆锚索”联合支护技术的支护效果.模拟结果表明“锚网喷+注浆锚索”联合支护技术可以有效控制围岩稳定性.
This paper describes the research status of deep soft rock roadway support technology,and analyzes the deformation mechanism of deep soft rock roadway.In this paper,FLAC 3D finite element difference software is used to simulate the original support scheme and improvement scheme of track uphill in Wu 2 Mining Area,No.3 level,No.6 Coal Mine of Pingdingshan Coal Co.,Ltd.By comparing the displacement,failure area and stress field distribution of the two,the support effect of the combined support technology of“bolt mesh shotcreting+grouting anchor cable”is analyzed.The simulation results show that the combined support technology of“bolt mesh shotcreting+grouting anchor cable”can effectively control the stability of surrounding rock.
作者
邹诗同
彭文庆
汪琦
朱豪
ZOU Shitong;PENG Wenqing;WANG Qi;ZHU Hao(School of Resources,Environment and Safety Engineering,Hunan University of science and technology,Xiangtan 411201,China)
出处
《矿业工程研究》
2021年第1期15-20,共6页
Mineral Engineering Research
基金
国家自然科学基金面上项目(51974118)。
关键词
巷道支护
软岩巷道
变形特征
围岩控制
数值模拟
rock roadway support
soft rock roadway
deformation characteristics
surrounding rock control
numerical simulation
