摘要
以煤矿大断面全煤巷道为背景,通过理论分析和数值模拟相结合的方法对巷道合理的支护形式进行了系统研究与现场评价。认为:巷道顶锚杆直径应为20 mm,间距应为0.9 m,而长度应为2.2 m,锚索的长度应为6.5 m;通过巷道围岩变形的现场实测结果来看,联合支护下巷道围岩的稳定性保持在较高水平。
In this paper,based on the background of large cross-section Full-coal roadway in coal mine,the reasonable support form of roadway is systematically studied and evaluated by combining theoretical analysis with numerical simulation.It is considered that the diameter of roof bolt should be 20 mm,the spacing should be 0.9 m,and the length should be 2.2 m,and the length of anchor cable should be 6.5 m.According to the field measurement results of surrounding rock deformation of roadway,the stability of surrounding rock of roadway under combined support is maintained at a high level.
作者
刘健
马赟
张永国
Liu Jian;MaYun;Zhang Yongguo(Shanxi Institute of Energy,Jinzhong Shanxi030600;Taiyuan Normal University,Jinzhong Shanxi030619;Xinzhou Teachers University,Xinzhou Shanxi034000;Collegeof Mining Engineering,Taiyuan University of Technology,Taiyuan Shanxi030024)
出处
《机械管理开发》
2019年第7期11-13,共3页
Mechanical Management and Development
基金
山西省软科学研究项目(201803D31051)
山西省应用基础研究项目面上自然基金项目(201801D121034)
关键词
全煤巷道
大断面
数值模拟
full coal roadway
large section
numerical simulation
