岩石隧道全断面开挖技术

The Full Section Excavation Technology for Rock Tunnels

对隧道施工全断面开挖的各种钻爆方式、掏槽方式、爆破参数、合理布置炮眼等进行了综合分析,给出了实用的施工数据。采用楔形掏槽与台架相配合,形成了大楔形掏槽台架开挖模式,使施工进度及经济价值都有明显的提高。

In this article,authors comprehensively analyze some aspects of the full section excavation method for rock tunnels such as every drill explosion methods,undermining modes,explosion parameters,and proper blast hole layout and so forth and give out practical construction data.Engineers can adopt the wedge undermining mode and desk frames to form the large wedge undermining desk frame excavation mode which will improve construction process and economic values.