介绍了采用中深直眼掏槽爆破的施工方案，并指出几个关键性的技术问题。

In this paper the construction plan of mid depth parallel cut blast is introduced, meanwhile some important technical questions are pointed out.

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为了考查无空孔直眼掏槽爆破参数，采用数值模拟方法研究单自由面垂直炮孔的爆炸作用问题。

To investigate the parameters of parallel cut blast without empty holes, an advanced numerical method is used to study the explosion effect of charge in hole perpendicular to a free surface.

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为 含空孔直眼掏槽爆破参数设计提供了依据。

The study has provided a ba se for design of blasting parameters of parallel cut.

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