Random wedge failure is one of the common failure types of rock slope excavation.
随机楔体的破坏是岩石开挖边坡中常见的破坏类型之一。
The excavation of upper chamber was conducted by the methods of bench excavating in layers and common explosion.
上室开挖采用分层梯段开挖和普通爆破方法。
In the process of urban construction, the Excavation Nearby Existing MTR is more common.
在城市建设的过程中，临近地铁隧道的深基坑的开挖越来越普遍。
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