路基工程2024,Issue(3) :241-245.DOI:10.13379/j.issn.1003-8825.202307035

基坑开挖引起周边建筑物变形简化预测模型研究

On Simplified Prediction Model for Deformation of Surrounding Buildings Caused by Excavation of Foundation Pits

杨天成
路基工程2024,Issue(3) :241-245.DOI:10.13379/j.issn.1003-8825.202307035

基坑开挖引起周边建筑物变形简化预测模型研究

On Simplified Prediction Model for Deformation of Surrounding Buildings Caused by Excavation of Foundation Pits

杨天成1
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作者信息

  • 1. 中铁十八局集团建筑安装工程有限公司,天津 300308
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摘要

基于武汉某综合性办公建筑项目,建立基坑开挖对周边建筑物影响数值分析模型,利用现场实测数据验证其准确性;分析基坑开挖深度、围护结构水平位移、基坑与建筑物相对位置等因素对既有建筑物变形的影响,形成建筑物变形数据库;建立简化的半经验预测模型,评估基坑邻近建筑物的变形,并通过既有工程的实测数据,验证该理论计算模型的准确性.

Abstract

Based on a comprehensive office building project in Wuhan,a numerical analysis model for the impact of foundation pit excavation on surrounding buildings was established,and its accuracy was verified using on-site measured data.On this basis,the influence of factors such as excavation depth of the foundation pit,horizontal displacement of the retaining structure,and the relative position of the foundation pit and the building on the deformation of existing buildings was analyzed.A database for the deformation of existing buildings was established,and a simplified semi-empirical prediction model was established to evaluate the deformation of the buildings adjacent to the foundation pit.The accuracy of the theoretical calculation model was verified through the measured data of the existing projects.

关键词

深基坑/周边建筑物/水平位移/预测模型/数据验证

Key words

deep foundation pit/surrounding buildings/horizontal displacement/prediction model/data validation

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出版年

2024
路基工程
中铁二局集团有限公司,西南交通大学,中铁二院工程集团有限责任公司

路基工程

影响因子:0.36
ISSN:1003-8825
参考文献量3
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