摘要
本文以杭州市钱塘江引水入城输水隧洞工程浅埋暗挖段的爆破开挖施工为例,介绍了采用缩短单循环进尺和精确延时起爆的控制爆破工艺。实践证明,该工艺有效地降低了浅埋隧洞爆破振动的危害和影响,可在类似工程中推广。
In the paper, blasting excavation construction of shallow burial hidden excavation section in Hangzhou Qiantang river downtown diversion project is adopted as an example. Control blasting process of single cycle footage shortening and precise delay blasting are introduced. Practice has proved that the process can effectively reduce hazards and influence of shallow burial tunnel blasting vibration, which can be extended in similar projects.
出处
《水利建设与管理》
2014年第10期3-6,共4页
Water Conservancy Construction and Management
关键词
浅埋
隧洞
爆破
降低振动危害
shallow burial
tunnel
blasting
lowering vibration hazards
