|本期目录/Table of Contents|

[1]侯胜男,岳建勇,周 延.复杂环境下某体育建筑深大基坑分区设计与实践[J].建筑科学与工程学报,2021,38(06):119-127.[doi:10.19815/j.jace.2021.09041]
　HOU Sheng-nan,YUE Jian-yong,ZHOU Yan.Design and Practice of Partitioning of Deep Large Foundation Pits Under Complex Environment Conditions[J].Journal of Architecture and Civil Engineering,2021,38(06):119-127.[doi:10.19815/j.jace.2021.09041]
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复杂环境下某体育建筑深大基坑分区设计与实践(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
38卷
期数:
2021年06期
页码:
119-127
栏目:
软土基坑设计与变形控制
出版日期:
2021-11-05

文章信息/Info

Title:
Design and Practice of Partitioning of Deep Large Foundation Pits Under Complex Environment Conditions
文章编号:
1673-2049(2021)06-0119-09
作者:
侯胜男1,2,岳建勇1,2,周 延1,2
(1. 华东建筑设计研究院有限公司上海地下空间与工程设计研究院,上海 200011; 2. 上海基坑工程环境安全控制工程技术研究中心,上海 200011)
Author(s):
HOU Sheng-nan1,2, YUE Jian-yong1,2, ZHOU Yan1,2
(1. Shanghai Underground Space Engineering Design & Research Institute, East China Architecture Design & Research Institute Co., Ltd., Shanghai 200011, China; 2. Shanghai Engineering Research Center of Safety Control for Facilities Adjacent to Deep Excavations, Shanghai 200011, China)
关键词:
深大基坑;  分区设计;  环境影响;  体育建筑
Keywords:
deep large foundation pit;  partitioning implementation;  environmental influence;  sports building
分类号:
TU973.2
DOI:
10.19815/j.jace.2021.09041
文献标志码:
A
摘要:
为减小大范围土体卸载对周边环境的影响,加强对周边复杂环境的保护,对上海徐家汇体育公园项目深大基坑进行了合理设计。在充分考虑基坑邻近地铁、高架、管线以及基坑内部和周边建筑物环境复杂等特点的基础上,基坑支护结构设计采用“分区顺作+板式支护+多道支撑+合理换撑”的设计方案,介绍了基坑工程整体分区、支撑及栈桥布置、临时隔断换撑等设计思路和具体实践,并通过现场分区变形监测分析基坑分区设计方案的合理性。结果表明:底板完成后东亚大厦最大沉降变形约为6 mm,差异沉降约为1 mm; 上海体育馆最大沉降约为8 mm,最大差异沉降约为2 mm; 上体馆主变站沉降增加约4 mm,差异沉降小于1 mm; 施工期间上体馆主变站和电缆隧道虽发生一定沉降变形,但变形均处在可控范围内,远小于上海申通地铁对沉降控制的要求,确保了整个地铁系统的正常运营; 合理的基坑分区设计方案和技术措施可以确保基坑自身及周边环境的安全,可为相关工程设计与实践提供参考。
Abstract:
In order to reduce the influence of large-scale soil unloading on the surrounding environment and strengthen the protection of the surrounding complex environment, the deep foundation pit of Shanghai Xujiahui Sports Park was reasonably designed. Based on fully considering the characteristics of metro, overpass and pipeline near foundation pit, and the complex environment of the internal and surrounding buildings of the foundation pit, the design scheme of supporting structure of foundation pit with “partitioning parallel operation + plate support + multi-strut + reasonable support change” was adopted. The design ideas and specific practices of the partitioning implementation of the foundation pit, the layout of the support and trestle, and the temporary isolation and support replacement were introduced in detail, and the rationality of the partitioning implementation of the foundation pit was analyzed through the on-site deformation monitoring. The results show that the maximum settlement deformation of the East Asian Building is about 6 mm after the baseplate completed, and the differential settlement is about 1 mm. The maximum settlement of Shanghai Stadium is about 8 mm, and the maximum differential settlement is about 2 mm. The settlement of the Shanghai Stadium transformer substation increases by about 4 mm, and the differential settlement is less than 1 mm. During the construction, although the settlements of the Shanghai Stadium transformer substation and cable tunnel increase a little, but the deformation is in the controllable range, which is far less than settlement control criterion proposed by the Shanghai Shentong Metro Group, ensuring the normal operation of the whole subway system. Reasonable partitioning implementation and technical measures can ensure the safety of foundation pit and the surrounding environment, which can provide a reference for the relevant engineering design and practice.

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备注/Memo

备注/Memo:
收稿日期:2021-09-10
基金项目:上海市优秀技术带头人计划项目(20XD1430300)
作者简介:侯胜男(1984-),女,安徽阜阳人,高级工程师,工学硕士,E-mail:243496083@qq.com。
更新日期/Last Update: 2021-11-01