复杂环境下岩石路堑快速爆破开挖技术研究

Study on A Quick Blasting Technique of Rock Road Cutting in Complicated Environment

运用控制爆破理论，在以控制爆破飞石、地震为主要目标的研究中，提出了微差松动和留碴挤压相结合的爆破新技术，给出该技术主要爆破参数的确定方法。通过分析比较，制定了可靠且实用的控制爆破开挖方案。应用结果表明，该技术保证了道路开挖工期和周围建筑物安全，并使爆破成本降至最小，具有一定的实用价值。

Based on the theory of controlled blasting, a new blasting technique of combining the millisecond delay loosening and buffer is put forward to control the flying stone and vibration of blasting, and a method to determine the blasting parameters is also given out in this paper. A reliable and practical blasting excavating program has been drawn by analysis and selection. The application results indicate that the time limit for excavating and the building’s safety near the site can be guaranteed, and the blasting cost can be reduced to minimum. The technique is of some practical value.