Huge deformation of wall rock has a strong impact on the stability of roadway in many underground opening engineering.

在许多地下巷道工程中，围岩巨大的变形严重影响巷道稳定性。

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Huge deformation of wall rock has a strong impact on the stability of roadway in many underground opening engineering.

在许多地下巷道工程中，围岩巨大的变形严重影响巷道稳定性。

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