小跨度断面深孔间隔爆破技术应用研究

Application Study of Deep Hole Interval Blasting Technology for Small Span Section

针对地下工程小跨度断面施工中,传统掘进爆破方法存在循环进尺短、单耗药量大的缺点,研究提出了一种新型深孔间隔爆破技术,有效增加小跨度断面爆破循环进尺,大幅提高小跨度断面的爆破施工效率和质量。

In the construction of the small span section of underground engineering,the traditional blasting method has the shortcoming of short circulating footage and large amount of single consumption. A new deep hole interval blasting technique is proposed,which can effectively increase the length of the small span section blasting cycle,and greatly improve the efficiency and quality of the burst construction of the small span section.