摘要
采用常规光面爆破技术进行隧道掘进,需解决超挖、降低回填混凝土成本等问题。文章针对常规光面爆破存在的不足,阐述了聚能水压光面爆破新技术的原理、装药结构、聚能管装置的组装方法及装填程序,并以成兰铁路金瓶岩隧道工程应用实践为例,重点分析聚能水压光面爆破的技术、经济效果。分析结果表明:聚能水压光面爆破技术具有施工简便、有利于开挖轮廓线控制、减少超挖、加快施工进度、降低施工成本的显著特点,经济和社会效益都很可观。
In view of the shortcomings of conventional smooth blasting,it′s necessary to solve the problems of over-break and to reduce the cost of backfilling concrete in tunnel construction.The principles of energy-collecting hydraulic smooth blasting technique,charge structure,assembling method of energy-collecting tube and charging procedures were described,and the energy-collecting hydraulic smooth blasting techniques and economic effects were specially analyzed by taking the Jinpingyan tunnel on Chengdu-Lanzhou railway as an example.The results show that this new technique has the advantages of easy construction and control of excavation contour line,reduction of overbreak,speeding up construction progress and decrease of construction cost,with significant economic and social benefits.
作者
刘海波
LIU Haibo(Construction Engineering Co.,Ltd.,China Railway 14th Bureau Group Co.,Ltd.,Ji′nan 250011)
出处
《现代隧道技术》
EI
CSCD
北大核心
2019年第2期182-187,共6页
Modern Tunnelling Technology
关键词
隧道
聚能水压光面爆破技术
技术经济效果
比较
分析
应用
Tunnel
Energy-collecting hydraulic smooth blasting technique
Technical and social benefit
Comparison
Analysis
Applicaton
