摘要
针对较差岩性围岩条件下小断面隧道开挖的施工特点,探讨了相应条件下小断面水工隧道光面爆破技术,得到了合理的钻爆参数,改善了水工隧道成洞质量,减少了超欠挖,加快了爆破开挖速度,有关参数与技术措施可为同类工程提供参考与借鉴。
The smooth blasting technique was researched for the small section hydraulic tunnel accord- ing to poor lithology surrounding rock, and some reasonable parameters were obtained. Thus the quality of boreholes has been improved, over-under-excavation of the tunnel has been controlled effectively, and the progress of blasting excavation has been accelerated as well, which could provide reference for similar
projects.
出处
《工程爆破》
北大核心
2013年第1期60-62,共3页
Engineering Blasting
关键词
爆破开挖
光面爆破
水工隧道
成洞质量
Blasting excavation
Smooth blasting
Hydraulic tunnel
Boreholes quality
