Analysis of Instability Mechanism and Support Technology of Surrounding Rock in High Stress Soft Rock Mining Roadway

2018 1st International Conference on Environment Prevention and Pollution Control Technology

生态环境科学

Wang, Li^1 ; Zhao, Guibin^2

College of Mining, Hulunbuir University, Hulunbuir

021008, China^1

Dayan Mining Group Co. Ltd., Hulunbuir

021008, China^2

关键词: 3-D numerical simulation;    Instability mechanisms;    On site investigations;    Roadway surrounding rock;    Soft rock roadway;    Support parameters;    Support technology;    Technical requirement;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/199/3/032104/pdf
DOI  :  10.1088/1755-1315/199/3/032104

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Based on the on-site investigation and monitoring of the working face of Yannan Mine I0128203, by using FLAC 3D numerical simulation software, the mechanism of deformation and instability of roadway surrounding rock is analyzed, and it is concluded that the existing support method has been unsuitable for the soft rock roadway and technical requirements. Aiming at this problem, propose a new technology of hollow grouting anchor support. The support parameters and support process are optimized through field experiments. The results of mine pressure observation show that the technology has achieved the goal of maintaining roadway stability.