科研之友
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摘要
In order to study the problem of surrounding rock control excavation caused by complex environmental conditions under the stop instability mechanism and its scope of influence. Based on the real rupture process numerical analysis software, the collapse mechanism of the collapse zone and its dynamic catastrophe process were revealed and its impact of the collapse of the instability was identified, the study of grouting pre-reinforcement and its effective monitoring in the unstable collapse area was carried out. The results show that the hidden area formed after the collapse of the stop is type V, the slip surface of the collapse is determined, grouting prereinforcement of the program and steps are presented, and the three-dimensional visualization model of the grouting hole is drawn. The results show that the integrity of the ore body and the filling body is better after grouting. While the water pressure test showed a significant reduction in the value of Live, That is, the slurry is filled and compacted between the ore body and the filling body between the holes and cracks. According to the research results of the mining environment ahead of governance, the safety problems faced by the mining hazards in the mine are effectively solved.
- 出版日期2018
- 单位清华大学
