浅基础框架建筑受邻近基坑开挖影响简化分析

张治国; 杨轩; 赵其华; 费思异; 贾延臣

doi:10.11779/CJGE2017S2054

浅基础框架建筑受邻近基坑开挖影响简化分析 English Version

张治国^{1, 2, 3},
杨轩¹,
赵其华⁴,
费思异¹,
贾延臣¹

1. 上海理工大学环境与建筑学院,上海 200093;
2. 国土资源部丘陵山地地质灾害防治重点实验室,福建福州 350002;
3. 桂林理工大学广西岩土力学与工程重点实验室,广西桂林 541004;
4. 成都理工大学环境与土木工程学院,四川成都 610059

基金项目: 上海自然科学基金项目（15ZR1429400）; 国土资源部丘陵山地地质灾害防治重点实验室课题（2015k005）; 广西岩土力学与工程重点实验室项目（15-KF-07）

详细信息

作者简介:
张治国(1978- ),男,博士,博士后,副教授,主要从事地下工程施工对周边环境影响控制方面的研究工作。E-mail：zgzhang@usst.edu.cn。

计量
- 文章访问数: 351
- HTML全文浏览量: 2
- PDF下载量: 162
出版历程
- 收稿日期: 2017-08-01
- 发布日期: 2017-12-19

Simplified analysis of frame buildings with shallow foundation induced by excavation of adjacent foundation pit

1. School of Environment and Architecture, University of Shanghai for science and Technology, Shanghai 200093, China;
2. Key Laboratory of Geohazard Prevention of Hilly Mountains, Ministry of Land and Resources, Fuzhou 350002, China;
3. Guangxi Key Laboratory of Geomechanics and Geotechnical Engineering, Guilin University of Technology, Guilin 541004, China;
4. College of Environment and Civil Engineering, Chengdu University of Technology, Chengdu 610059, China

摘要

摘要: 基于Winkler 地基模型,将框架结构、条形基础、地基的共同作用简化为弹性地基上的剪弯梁模型,研究了不同施工距离等影响因素下,基坑开挖对邻近建筑基础沉降变形和内力的影响。算例结果表明：随着建筑物与基坑开挖面距离的增大,建筑基础梁的相对挠曲将依次呈现为下凹形态、“∽”形态以及上凸形态。当基础梁跨越坑外土体沉降槽最低点和上凸挠曲曲率最大点位置时,基础梁下凹和上凸形态的相对挠曲,以及其正、负弯矩、剪力均达到峰值。
- 基坑工程 /
- 浅基础框架建筑物 /
- 简化分析 /
- 弯矩 /
- 剪力 /
- 相对挠曲变形
Abstract: Based on the Winkler foundation model, the interactions of the frame structure, strip basement and soil foundation are simplified as a shear-flexural beam on elastic foundation. The different construction distances are considered to obtain the settlements and internal forces of frame building beam induced by excavation of foundation pit. The results show that the sagging deformation, "∽" form of deformation and hogging deformation will occur for the relative deflection of foundation beam when the relative distance between the building and the excavation increases. When the building is located over the lowest point and the hogging zone of the settlement trough, the sagging and hogging deformations are the most obvious. At the same time, the positive, negative bending moments and shear forces also reach their maximum values.
- foundation pit engineering /
- frame building with shallow foundation /
- simplified analysis /
- bending moment /
- shear force /
- relative deflection

HTML全文

参考文献(10)

[1]	BRYSON L, KOTHEIMER M. Cracking in walls of a building adjacent to a deep excavation[J]. Journal of Performance of Constructed Facilities, 2011, 25(6): 491-503.
[2]	SON M, CORDING E J. Responses of buildings with different structural types to excavation-induced ground settlements[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2011, 137(4): 323-333.
[3]	SON M, CORDING E J. Numerical model tests of building response to excavation-induced ground movements[J]. Canadian Geotechnical Journal, 2008, 45(11): 1611-1621.
[4]	王浩然, 王卫东, 徐中华. 基坑开挖对邻近建筑物影响的三维有限元分析[J]. 地下空间与工程学报, 2009, 5(增刊2): 1512-1517. (WANG Hao-ran, WANG Wei-dong, XU Zhong-hua. Three dimensional analysis of the influence of deep excavation on adjacent building[J]. Chinese Journal of Underground Space and Engineering, 2009, 5(S2): 1512-1517. (in Chinese))
[5]	张陈蓉, 蔡建鹏, 黄茂松. 基坑开挖对邻近地埋管线的影响分析[J]. 岩土工程学报, 2010, 32(增刊2): 154-157. (ZHANG Chen-rong, CAI Jian-peng, HUANG Mao-song. Influence of deep excavation on adjacent underground pipelines[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(S2): 154-157. (in Chinese))
[6]	黄茂松, 朱晓宇, 张陈蓉. 基于周边既有建筑物承载能力的基坑变形研究[J]. 岩土工程学报, 2012, 34(11): 2305-2312. (HANG Mao-song, ZHU Xiao-yu, ZHANG Chen-rong. Deformation controlling criterion for excavation based on berring capacity of adjacent buildings[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(11): 2305-2312. (in Chinese))
[7]	郑刚, 李志伟. 基坑开挖对邻近任意角度建筑物影响的有限元分析[J]. 岩土工程学报, 2012, 34(4): 615-624. (ZHENG Gang, LI Zhi-wei. Finite element analysis of response of the building with arbitrary angle adjacent to excavation[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(4): 615-624. (in Chinese))
[8]	HSIEH P G, OU C Y. Shape of ground surface settlement profiles caused by excavation[J]. Canadian Geotechnical Journal, 1998, 35(6): 1004-1017.
[9]	谭志祥, 邓喀中. 采动地区建筑物地基、基础和结构协同作用模型[J]. 中国矿业大学学报, 2004, 33(3): 264-267. (TAN Zhi-xiang, DENG Ka-zhong. Coordinating work model of ground, foundation and structure of building in mining area[J]. Journal of China University of Mining Technology, 2004, 33(3): 264-267. (in Chinese))
[10]	夏军武, 袁迎曙, 董正筑. 采动区地基、条形基础与框架结构共同作用机理研究[J]. 岩土工程学报, 2007, 29(4): 537-541. (XIA Jun-wu, YUAN Ying-shu, DONG Zheng-zhu. Mechanism study on subsoil-strap footing- framework interaction in mining subsidence area[J]. Chinese Journal of Geotechnical Engineering, 2007, 29(4): 537-541. (in Chinese))