临近既有线隧道爆破施工技术研究  

Research on Blasting Construction Technology of Adjacent Existing Tunnels

作　　者：郭士维 GUO Shi-wei(The 3rd Engineering Co.,Ltd.of China Railway 17 Bureau Group Corporation,Shijiazhuang 050000,China)

机构地区：[1]中铁十七局集团第三工程有限公司,石家庄050000

出　　处：《价值工程》2022年第10期78-80,共3页Value Engineering

摘　　要：在与既有线隧道的间距很小的情况下进行新隧道或其附属工程的开挖爆破,应不影响线路的正常运营,为此必须采取一系列控制爆破震速的技术措施。本文论述了所采用的控爆措施,其中包括光面爆破开挖技巧、钻爆设计、控爆施工工艺、爆破参数、爆破震速监控。Excavation and blasting of a new tunnel or its ancillary works with a small distance from the existing tunnel should not affect the normal operation of the line.Therefore,a series of technical measures to control the blasting vibration speed must be taken.This paper discusses the blast control measures adopted,including smooth blasting excavation skills,drilling and blasting design,blast control construction technology,blasting parameters,blasting shock velocity monitoring.

关 键 词：铁路隧道 既有线 控制爆破 震动监测 

分 类 号：U445.463[建筑科学—桥梁与隧道工程]