厚砂层强基岩地质钻孔灌注桩施工技术研究  

Research on Construction Technology of Geological Drilled Cast-in-place Pile in Thick Sand Layer and Strong Bedrock

作　　者：刘玉宝 汤伟[2] 刘沛元 LIU Yu-bao;TANG Wei;LIU Pei-yuan(CCCC First Harbour Engineering Company Ltd.,Tianjin 300000,China;CCCC Highway Consultants Co.Ltd.Beijing100010,China)

机构地区：[1]中交第一航务工程局有限公司,天津市3300000 [2]中交公路规划设计院有限公司,北京市100010

出　　处：《公路》2022年第11期226-230,共5页Highway

摘　　要：随着福建省沿海区域交通的发展,越来越多的桥梁工程项目位于近海区域,而桥梁桩基作为承载桥梁自身荷载和汽车荷载最重要的基础结构发挥着重要作用。针对福建省厦门市翔安区沿海区域上覆盖层为厚砂层,下伏基岩为煌斑岩、凝灰熔岩和花岗岩的情况,技术人员通过理论探索和实践,研究总结出一套钻孔灌柱桩施工全过程技术工艺及实际经验。With the development of transportation in the coastal areas of Fujian Province,more and more bridge projects have been built in offshore areas.The bridge pile foundation,as the most important basic structure,plays an important role in bearing the load of the bridge itself and the vehicles.In view of the situation that at the Xiang’an District,Xiamen City,Fujian Province,the upper cover layer of the coastal area is thick sand and the underlying bedrock is lamprophyre,tuff lava,amphibole and granite,the technical personnel have concluded a set of technical processes and accumulated rich experience of the whole process through theoretical exploration and practical research.

关 键 词：摩擦端承桩 花岗岩地质 反循环清孔 正循环冲孔 水下混凝土浇筑 桩基施工经验总结 

分 类 号：U443.154[建筑科学—桥梁与隧道工程]