“中心岛法”锚碇基础开挖技术研究与应用  

RESEARCH AND APPLICATION OF"CENTER ISL AND METHOD"ANCHOR FOUNDATION EXCAVATION TECHNOLOGY

作　　者：魏豪 WEI Hao(Road&Bridge East China Engineering Co.,Ltd.,201210,Shanghai,China)

机构地区：[1]中交路桥华东工程有限公司,上海201210

出　　处：《建筑技术》2025年第2期220-222,共3页Architecture Technology

基　　金：中交路桥建设有限公司科技研发项目(RP2023018895)。

摘　　要：以张靖皋长江大桥某超大型深基坑工程为研究背景,详细介绍了深厚软土覆盖层地区中心岛开挖方案的概况及施工工艺流程,并对基坑开挖实施过程中的关键节点和技术进行研究。该项目通过采用中心岛法的开挖方式,有效利用了预留核心土来减小坑底隆起、基坑支护结构过大的位移,可增强深基坑的整体稳定性,提高施工效率,可为类似工程提供施工借鉴。This paper presents a study on the excavation scheme and construction technology of the central island in the deep soft soil covered area,taking the Zhangjingao Yangtze River Bridge as the research background.The key points and technologies in the implementation process of the pit excavation are studied.This project effectively uses the reserved core soil to reduce the uplift of the pit bottom and the excessive displacement of the pit support structure by adopting the central island excavation method,which can enhance the overall stability of the deep foundation pit and improve the construction efficiency.It can provide construction references for similar projects.

关 键 词：超大型深基坑 基坑开挖 中心岛法 核心土 

分 类 号：TU758.11[建筑科学—建筑技术科学]