Poor geologic condition, improper positioning in design and incorrect construction method will lead to landslide in tunnelling.
隧洞施工中由于地质不良、设计定位不当、施工方法不正确易引起塌方。
Poor geologic condition, improper positioning in design and incorrect construction method will lead to landslide in tunnelling.
隧洞施工中由于地质不良、设计定位不当、施工方法不正确易引起塌方。
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