Smooth blasting is an advanced technique which makes the new wall flat and undamaged and important to the fast excavation in rock tunnel, which affects the quality and driving speed of tunnel.

光面爆破是一种使爆出的新壁面保持平整而不受明显破坏的爆破技术，是岩巷快速掘进工艺的重要环节，它严格影响着巷道的质量和成巷速度。

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Smooth blasting is an advanced technique which makes the new wall flat and undamaged and important to the fast excavation in rock tunnel, which affects the quality and driving speed of tunnel.

光面爆破是一种使爆出的新壁面保持平整而不受明显破坏的爆破技术，是岩巷快速掘进工艺的重要环节，它严格影响着巷道的质量和成巷速度。

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