摘要
利用空间相似材料模拟实验,对立井混合作业方式4m和8m段高时围岩变形及失稳规律进行了研究。得到了围岩表面径向位移的分布与发展规律,以及围岩的失稳形式与失稳位置,并对实验结果进行了分析,最后建议加大我国目前的施工段高。
Simulating test with space similarity material, this paper studies the rules of deformation and instability of surrounding rock when sinking a shaft with mixed working method at four, eight meter segment. The authors get the distribution and development rules of radial displacement of surrounding rock, and also get the form and place of surrounding rock instability, though analysis of the test result. At last, the paper suggests increasing the current segment in our country.
关键词
立井
混合作业
段高
围岩
稳定性
mixed working method
segment
similarity material simulating test
surrounding rock stableness
