预制高强薄壁管桩施工技术在高层建筑基础中的应用  

APPLICATION OF PRECAST HIGH-STRENGTH THIN-WALL PIPE PILE CONSTRUCTION TECHNOLOGY IN HIGH-RISE BUILDING FOUNDATION

作　　者：许孙杰 Xu Sun-jie

机构地区：[1]福建地矿建设集团公司,福州350002

出　　处：《建筑技术开发》2022年第7期32-36,共5页Building Technology Development

摘　　要：薄壁钢管离心混凝土管桩,简称TSC桩,具有穿透地质硬夹层能力强、抗锤击能力强、承载力高、便于施工、能有效节能降材、造价低,且可以与其他不同桩型组合的特点,是最近发展起来的一种新的沉桩形式。目前,薄壁钢管离心混凝土管桩在国内还处于少量应用阶段,相关规范不全,应用经验较匮乏。以厦门汇金国际中心大厦TSC桩基施工为例,在概述工程地质条件的基础上,完成了工程桩基设计,设计了施工工艺技术、桩基测试技术等,为后续该技术的推广应用提供了参考。Thin-walled steel tubular centrifugal concrete pipe pile,referred to as TSC pile,has the characteristics of strong penetration of geological hard interlayer,strong resistance to hammer,high bearing capacity,easy construction,effective energy saving and material reduction and low cost,and can be combined with other different pile types.It is a new type of pile sinking developed recently.At present,thin-walled steel tubular centrifugal concrete pipe pile is still in a small amount of application stage in China,the relevant specifications are incomplete,and the application experience is relatively lacking.The paper takes Xiamen Huijin International Center Building TSC pile foundation construction as an example.Based on the overview of engineering geological conditions,the project pile foundation design is completed,and the construction technology and pile foundation testing technology are designed,which provides reference for the subsequent promotion and application of this technology.

关 键 词：薄壁管桩 TSC桩 承载力 

分 类 号：TU473.1[建筑科学—结构工程] TU753.3[建筑科学—土工工程]