›› 2016, Vol. 30 ›› Issue (3): 281-284.

• 工程实录 •    下一篇

中心岛法在超大软土深基坑中的工程应用

刘 超1,徐左屏2,梁振宁1   

  1. (1.上海岩土工程勘察设计研究院有限公司,上海 200031; 2.上海智富建设工程有限公司,上海 200333)
  • 收稿日期:2016-04-26 修回日期:2016-05-05 出版日期:2016-06-20 发布日期:2016-06-21

Engineering Application of Center Island Method in Super Large Deep Foundation Pit of Soft Soil

LIU Chao1, XU Zuoping2, LIANG Zhenning1   

  1. (1.Shanghai Geotechnical Investigation and Design Institute Co., Ltd., Shanghai, 200031;
    2.Shanghai I&F Construction Engineering Co., Ltd., Shanghai, 200333)
  • Received:2016-04-26 Revised:2016-05-05 Online:2016-06-20 Published:2016-06-21
  • Supported by:

    刘 超(1989-),女,硕士,助理工程师,研究方向为岩土工程。

摘要: 以上海某超大型深基坑工程为背景,详细介绍了软土地区中心岛支撑方案的概况和施工工艺流程,并对实施过程中的关键节点和技术进行具体论述,为类似工程积累了宝贵的经验。该项目通过采用中心岛法的基坑支护方式,有效地利用了新建建筑结构作为基坑加固的一部分,降低了基坑加固成本,缩短了施工工期。并且由于整个加固施工过程均可视,使基坑支护结构安全处于受控状态,取得了良好的工程效益。

关键词: 中心岛法, 基坑开挖, 淤泥质软土, 超大型深基坑

Abstract: Based on a very large deep excavation in Shanghai, this article provides a detailed introduction of design, construction technology and process of the central island retaining system in soft soils. The paper specifically discusses the key issues and solutions of the designconstruction process of the retaining system. The introduction provides a valuable design/construction experience for the similar projects.

Key words: Center Island Method, Deep Excavation, Mucky Soft Soils, Very Large Deep Excavations