小爆破技术在桥梁桩基施工中的应用  

Application of Small Blasting Technology in Bridge Pile Foundation Construction

作　　者：邓辉 

机构地区：[1]中铁二十五局集团柳州铁路工程有限公司,广西柳州545007

出　　处：《铁道建筑技术》2010年第11期63-66,共4页Railway Construction Technology

摘　　要：在桥梁桩基础冲孔施工中会出现塌孔、斜孔、卡钻、糊钻和埋钻等各种难题。通过施工实例分析,总结出桩基施工小爆破技术,成功地解决桥梁桩基础施工中所遇到的地下大孤石和钻头卡钻的难题,为类似工程提供借鉴实例。During punching in the construction of bridge pile foundation there will appear all kinds of difficulties,such as hole collapse,inclined holes,jamming of the drilling tool,paste drilling and buried drilling.To ensure the quality of pile foundation construction,and through analysis of construction practice,this paper summed up the small blasting technology of pile foundation construction,and successfully resolved the problems of underground isolated boulder and jamming of the drilling tool in bridge pile foundation construction,which provide a reference for similar projects.

关 键 词：桩基 地下孤石 钻孔卡钻 爆破技术 

分 类 号：U443.15[建筑科学—桥梁与隧道工程]