... tunnel surrounding rock 隧道围岩 surrounding rock classification 围岩分类 stability of surrounding rock 围岩稳定 ...
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surrounding rock classification evaluation 围岩类别评定
Classification of surrounding rock 围岩分类
surrounding rock masses stability classification 围岩稳定分类
classification of surrounding rock stability 围岩稳定性分类
Surrounding rock mass classification 围岩分类
Surrounding rock quality classification 围岩质量分类
rocky surrounding rock sub-classification 岩质围岩亚级分级
1) For the surrounding rock classification, it is found that the wave speed method has obvious shortage. This especially is for phyllite.
1)对围岩分类而言,发现基于弹性波速的分类方法存在很大的缺陷,特别是对软弱千枚岩,就弹性波速度这一个指标,就很难客观地得出正确的结论。
参考来源 - 山区隧道围岩分类与洞口边坡稳定性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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