摘要
为解决某矿30802运输顺槽复合顶板巷道冒顶垮落严重、支护难度大、维护成本高等问题,设计采用“锚杆索+金属网”支护方式进行联合支护。结果表明,运输顺槽整体断面的收缩率约为4.8%,且变形量、离层量均处于变形允许范围内,有效控制了巷道围岩变形,确保了巷道的长期稳定。
In order to solve the problems of serious roof collapse,difficult support and high maintenance cost in the composite roof roadway of 30802 transport tunnel in a mine,the joint support is designed by"anchor cable+metal mesh".The results show that the shrinkage rate of the whole section of the transport tunnel is about 4.8%,and the deformation and delamination are within the permissible range of deformation,which effectively controls the deformation of the surrounding rock and ensures the long-term stability of the tunnel.
作者
王聪
Wang Cong(Production Scheduling Command Centre of Xu Mining Group,Xuzhou Jiangsu 221000,China)
出处
《机械管理开发》
2023年第11期266-268,共3页
Mechanical Management and Development
关键词
复合顶板
联合支护
数值模拟
工业试验
composite roof slab
joint support
numerical simulation
industrial test
