In the geological condition of shallow buried, soft rock, and carst, et al. the mother rock of these kinds of tunnel must be paid attention in the whole construction stage.
浅埋、围岩软弱、岩溶等复杂地质条件下，这类
不同施工阶段围岩的稳
性问题备受关注。
In the geological condition of shallow buried, soft rock, and carst, et al. the mother rock of these kinds of tunnel must be paid attention in the whole construction stage.
浅埋、围岩软弱、岩溶等复杂地质条件下，这类不同施工阶段围岩的稳性问题备受关注。
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