钟才敏，傅晋申

（华东建筑设计研究院有限公司，上海 200002）

 

 

［摘要］介绍了虹桥商务区8号地块的结构设计难点及关键技术应用，重点阐述“桩墙合一”技术、软土地区扩底桩以及大悬挑结构的设计方法。“桩墙合一”技术把围护排桩与地下室外墙作为共同的抗侧力结构，可较好地利用排桩这种临时支护体系；扩底桩可有效地提高桩的承载能力。对于近年工程中频繁出现的大悬挑结构，结合本工程提出了设计分析的整体思路及施工措施。

［关键词］桩墙合一； 扩底桩； 大悬挑结构

中图分类号：TU398.2，TU473.1文献标识码：A文章编号：1002-848X(2012)05-0106-04

 

Zhong Caimin, Fu Jinshen

(East China Architectural Design & Research Institute Co., Ltd., Shanghai 200002, China)

 

Abstract: The structural design difficulties and the applications of key technology were described, especially focused on the design method of pile wall interaction, base-enlarged pile in soft soil area and large cantilever structure. To take retaining pile and basement wall as a common resist lateral force structure,pile wall interaction technology can be a good use of the retaining pile of temporary support system; base-enlarged pile can effectively increase the bearing capacity. In recent years, there are many-large cantilever structures, and combined with this project, the trains of thought and construction measure for similar structure were provided.

Keywords: pile wall interaction; base-enlarged pile; large cantilever structure

作者简介：钟才敏，硕士，高级工程师，Email：caimin_zhong@ecadi.com。

 

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