在岩巷掘进过程中使用小直经钻尖，小直径药卷和小直径锚杆，可实现光面爆破，有效提高成巷建设，降低掘进成本。

This paper introduces driving rock drift with minor diameter bit, minor diameter cartridage and minor diameter bolt, it can realize smooth blasting, roadway speed is raised, driving cost is reduced.

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通过爆破方案的对比和分析，该方法可以加快施工速度，是城市工程爆破施工的有效途径。

And analyse through the contrast of demolition scheme, the speed that this method can accelerate constructing. It is the effective way of the urban project demolition.

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为大体积构筑物的快速拆除提供了一种行之有效的爆破方法。

An effective blasting way had been provided for quick demolition of large-volume constructions.

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