深水倾斜裸岩大直径钻孔桩施工技术  

Construction Techniques of Large-diameter Bored Pile in Tilt Bare Rock at Deepwater

作　　者：王广宏 

机构地区：[1]兰渝铁路有限责任公司,兰州730050

出　　处：《现代隧道技术》2012年第4期174-177,共4页Modern Tunnelling Technology

摘　　要：文章以兰渝铁路渠江特大桥的工程实践为例,详细地介绍了桩基的地质状况、大直径超长钻孔桩施工方案以及搭设浮桥连接钻孔平台、钢护筒跟进施工、捞碴筒辅助措施等施工工艺。During the construction of pontoon erection to connect drilling platform, the hydraulic vibrohammer of 300t was used for inserting of steel casing. For lacking of red earth required for drill grouting in Guang＇an area, the muck-dredging barrel was adopted.

关 键 词：桩基施工 浮桥 钢护筒 液压振动桩锤 捞碴筒 钻孔桩 

分 类 号：U443.154[建筑科学—桥梁与隧道工程]