Soft rock wall of tunnels in deep mining will have large creep deformation when the stress in rock is near its ultimate strength.
在深井软岩条件下，巷道围岩应力状态处于岩石强度极限邻域内，围岩会产生较大的蠕变变形。
Soft rock wall of tunnels in deep mining will have large creep deformation when the stress in rock is near its ultimate strength.
在深井软岩条件下，巷道围岩应力状态处于岩石强度极限邻域内，围岩会产生较大的蠕变变形。
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