深基坑施工对历史建筑的变形影响及控制研究

丁勇春; 程泽坤; 王建华; 徐安军; 李耀良

深基坑施工对历史建筑的变形影响及控制研究 English Version

(1.中交第三航务工程勘察设计院有限公司，上海 200032；2. 上海交通大学土木工程系，上海 200240；3. 上海市基础工程有限公司，上海 200002)

详细信息

作者简介:
丁勇春(1979– )，男，江苏大丰人，博士，高级工程师，主要从事基坑工程及港口岩土工程的设计与研究工作。

中图分类号: TU473.2
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出版历程
- 收稿日期: 2012-11-12
- 发布日期: 2012-11-12

Influence of deep excavation on deformation and control of adjacent historical building

(1. CCCC Third Harbor Consultants Co., Ltd., Shanghai 200032, China; 2. Department of Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China; 3. Shanghai Foundation Engineering Co., Ltd., Shanghai 200002, China)

摘要

摘要: 城市建筑密集区内深基坑施工对邻近历史建筑的影响及其保护是城市地下空间开发过程中出现的典型技术难题。结合某紧邻历史保护建筑的地铁车站深基坑工程，基于FLAC3D建立考虑土体与结构相互作用的三维整体计算模型，采用三维数值模拟结合现场监测对复杂环境下深基坑施工对历史建筑的变形影响及相应变形控制措施进行研究，探讨不同基坑支护方案及技术措施对基坑变形控制及历史建筑保护的有效性。结果表明：计算模型能够较好地预测基坑围护墙变形及对邻近历史建筑沉降的影响，隔断桩侧向变形及建筑基础沉降与基坑围护墙侧向变形具有较强的关联性，是否设置单排隔断桩及隔断桩间距调整对土体侧向变形的影响较小。
- 基坑 /
- 历史建筑 /
- 数值模拟 /
- 逆作法 /
- 地基加固 /
- 隔断桩
Abstract: The influence of deep excavation on deformation of nearby historical building and the corresponding protective measures have become typical technical difficulties with the development of underground space in congested municipal areas. A three-dimensional numerical simulation of a metro station excavation project was carried out to investigate the negative impact of deep excavation on the adjacent historical building and to verify the effectiveness of the protective measures, of which the numerical model was established by FLAC3D, and the staged construction as well as protective measures are taken into account. The results show that the numerical model can predict the lateral displacement of the retaining walls and the influence of the excavation on the adjacent building. The parametric study reveals that the lateral displacement of the single-row barrier piles and the settlement of the building foundation have a close relationship with the lateral displacement of the retaining walls, and the impact of the single-row barrier piles as well as the adjustment of pile spacing on lateral displacement of the outside soils can be neglected.
- excavation /
- historical building /
- numerical simulation /
- top-down construction /
- ground improvement /
- barrier pile

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参考文献(9)

[1]	岳建勇, 姚激, 黄绍铭. 软土地区敏感条件下深基坑工程设计与实践[J]. 岩土工程学报, 2011, 33(增刊1): 271–277. (YUE Jian-yong, YAO Ji, HUANG Shao-ming. Design and practice of deep foundation pit engineering under sensitive conditions in soft soil area[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(S1): 271–277. (in Chinese))
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[4]	丁勇春. 软土地区深基坑施工引起的变形及控制研究[D]. 上海: 上海交通大学, 2009. (DING Yong-chun. Excavation-induced deformation and control in soft deposits[D]. Shanghai: Shanghai Jiaotong University, 2009. (in Chinese))
[5]	龚晓南. 对岩土工程数值分析的几点思考[J]. 岩土力学, 2011, 32(2): 321–325. (GONG Xiao-nan. Reflections on numerical analysis of geotechnical engineering[J]. Rock and Soil Mechanics, 2011, 32(2): 321–325. (in Chinese))
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文章访问数: 991
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深基坑施工对历史建筑的变形影响及控制研究 English Version

作者简介: 丁勇春(1979– )，男，江苏大丰人，博士，高级工程师，主要从事基坑工程及港口岩土工程的设计与研究工作。

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出版历程

Influence of deep excavation on deformation and control of adjacent historical building

计量

出版历程

目录

作者简介:
丁勇春(1979– )，男，江苏大丰人，博士，高级工程师，主要从事基坑工程及港口岩土工程的设计与研究工作。