复杂双排灌注桩斜抛撑深基坑支护结构设计  

Supporting Structure Design of Deep Foundation Excavation with Oblique Bracing of Complex Double-row Cast-in-place Piles

作　　者：邵卿 张萍 杨世潮 苏朋 SHAO Qing;ZHANG Ping;YANG Shichao;SU Peng(Power China Huadong Engineering Co.,Ltd.,Hangzhou,Zhejiang 311122,China)

机构地区：[1]中国电建集团华东勘测设计研究院有限公司,浙江杭州311122

出　　处：《施工技术》2021年第2期35-38,共4页Construction Technology

基　　金：中国电建集团华东勘测设计研究院有限公司课题:亚运场馆及北支江综合整治工程EPC项目水利工程基础施工工艺及设计参数研究(AC180089Y-22-FW(16))。

摘　　要：以北支江上游水闸和船闸深基坑工程为例,介绍复杂双排灌注桩斜抛撑支护结构的设计及施工技术。阐述双排灌注桩斜抛撑支护结构设计方案,梳理钻孔灌注桩施工关键,对基坑及周边环境的沉降和水平位移进行监测。监测结果表明,将复杂双排灌注桩斜抛撑支护结构应用于地质条件复杂的北支江上游水闸和船闸深基坑工程监测可行且有效。The oblique bracing with complex double-row cast-in-situ piles was applied to the deep foundation excavation of the upstream sluice and ship lock of Beizhi River.Firstly,the structure design of the encased cast-in-place pile was given,and then the construction technology and scheme of the bored cast-in-place piles were provided in detail.Finally,the monitoring of the horizontal displacement and the settlement of the surrounding environment of the foundation excavation were introduced.The results showed that the complex double-row cast-in-place pile oblique throwing bracing support structure used in the sluice and ship lock deep foundation excavation engineering was a feasible and effective method.

关 键 词：地下工程 桩基础 双排灌注桩 斜抛撑支护 施工技术 监测 

分 类 号：TU753􀆰[建筑科学—建筑技术科学]