圆型隧洞超硬岩爆破进尺与掏槽方式探讨

Discussion About Blasting Footage and Cutting Patterns of Circular Tunnel in Supper Hard Rock

本文介绍了圆型隧洞施工中,在超硬围岩条件下通过不同的钻爆试验,采用不同的掏槽方式,产生不同的爆破进尺效果,从而确定选择合理的掏槽方式和爆破参数,以达到最佳进尺确保进度的要求。

This paper introduces that several blasting experiments with different cutting pattenas while driving circular ttmnel in sup- per hard pock, and they brought different blasting footage. Thus, we can get the best cutting pattern and explosion parameters, and the best footage too.