小断面长引水隧洞开挖爆破与供风设计  

Design of excavation blasting and air supply for small section long diversion tunnel

作　　者：秦晋[1] 周贺达 

机构地区：[1]吉林省水利水电勘测设计研究院,吉林长春130021

出　　处：《东北水利水电》2011年第10期1-4,71,共4页Water Resources & Hydropower of Northeast China

摘　　要：小断面隧洞由于洞径狭小,施工作业面不利于大型机械的布置。文章用工程实例介绍了选择合理的洞挖爆破方式、钻孔机械、布置合理的炮孔、起爆顺序、通风散烟。可以减少对隧洞围岩的干扰,确定合理的循环进尺,加快施工进度。Because of the small tunnel diameter, the construction operations of the small section tunnel is not suitable for the arrangement of large-scale machinery. The paper introduces the reasonable choise of the excavation blasting way, the drilling machines, the holes layout, detonating sequence, ventilation and smoke discharge by the project examples, which could reduce the the interference of tunnel surrounding rock, determine the reasonable cyclical footage and speed up the construction schedule.

关 键 词：小断面隧洞 开挖爆破 供风设计 

分 类 号：TV554[水利工程—水利水电工程]