The movement of the rock in ditching and the mechanism of millisecond blasting were analyzed.

探讨了沟槽内岩块的运动规律,以及深孔微差爆破的作用机理.

Deep-holed millisecond blasting is a fast construction method applied to large scale earthwork.

台阶深孔微差爆破是一种大规模、快速的土石方施工方法。

The effectiveness of the proposed method is verified with time-energy density analysis of vibration signals of millisecond blasting in an underground engineering.

以某地下工程的微差爆破振动信号进行时-能密度分析为例，对本方法的有效性作了检验。