开拓巷道围岩变形严重段注浆加固技术研究

Research on Grouting and Reinforcement Technology for Severely Deformed Section of Open Roadway Surrounding Rock

针对某矿南翼运输大巷围岩变形量严重问题,提出采用通过注浆方式增加巷道围岩自身强度及承载能力并结合锚杆、U型钢强化围岩变形控制效果的措施。进行现场应用后,巷道围岩变形得以有效控制,巷道断面可满足后续运输、行人以及通风需要。研究成果可为其他矿井开拓巷道大变形围岩控制提供经验借鉴。

In view of the serious deformation of the surrounding rock in the south wing of the transportation road,we propose to increase the strength and bearing capacity of the surrounding rock of the roadway by grouting and strengthen the deformation control effect of the surrounding rock by combining with anchors and U-beams,and after the field application,the deformation of the surrounding rock of the roadway can be effectively controlled and the roadway section can meet the subsequent transportation,pedestrian and ventilation needs.The research results provide experience reference for other mines to control the large deformation of the surrounding rock in the tunnel.