历史保护建筑改扩建的设计与应用.pdf

第32卷 增刊1 岩 土 工 程 学 报 Vol.32 Supp.1 2010年 7月 Chinese Journal of Geotechnical Engineering July 2010 历史保护建筑改扩建的设计与应用 刘 征 （上海申元岩土工程有限公司，上海 200040） 摘 要：历史保护建筑的改扩建工程实施的重点在两个方面，即老建筑的加固和新建筑施工。老建筑的加固难点在于 不损坏原有结构，新建筑的施工难点在于要严格控制其施工对老建筑的影响。主要基于益丰大厦改扩建工程的成功实 践，介绍老建筑的基础加固的实施方法，以及受各种条件制约的新楼的深基坑工程设计。该项目位于上海外滩，周边 紧邻多幢历史保护建筑，老楼采用组合锚杆静压桩的加固技术，新楼深基坑工程采用逆作法施工技术。监测结果表明， 这些技术成功实现了对历史保护建筑的改扩建，同时良好的保护了周边环境，也满足了业主的工期要求。该项目的成 功实施为今后类似项目提供了一定的经验借鉴。 关键词：改扩建；基础加固；深基坑；组合式锚杆静压桩；逆作法 中图分类号：TU46.3 文献标识码：A 文章编号：1000 –4548(2008)S1 –0284 –06 作者简介：刘 征(1979 – )，男，硕士，主要从事深基坑工程的设计与研究工作。E-mail: lzsagacity@ 。 Design and application of rebuilding and extension of heritage buildings LIU Zheng (Shanghai Shenyuan Geotechnical Engineering Co., Ltd., Shanghai 200040, China) Abstract: The rebuilding and extension of the heritage buildings include two important sides. One is the foundation improvement of the old buildings, the other is the construction of new buildings. The problem of the former is that the original structures cannot be damaged during construction, and that of the latter is the difficulty in minimizing the influences on the old buildings during the deep excavation construction. Based on the successful case of Yifeng Building, the detail of how to reinforce the foundation of the old buildings, and how to design the construction of deep excavation of the new building under restriction of every aspect is introduced. This project is located at the Bund and is adjacent to several heritage buildings. Composite anchor jac