Evaluation of building damage caused by excavation-induced ground movements in three-dimensional deformation field: a case study in Tianjin, China

IF 5.7 1区工程技术 Q1 ENGINEERING, GEOLOGICAL

Acta Geotechnica Pub Date : 2025-04-12 DOI:10.1007/s11440-025-02596-w

Boyang Xia, Gang Zheng, Haizuo Zhou, Yi He

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Abstract

Deep excavation causes ground movements and induces structural damage to adjacent buildings. Based on a case history from Tianjin, China, this study investigated the three-dimensional distortion characteristics of adjacent buildings during the excavation process. Indicators were monitored to obtain comprehensive measurement data, including the horizontal deflection of the diaphragm wall, lateral and vertical ground movement, and the horizontal displacement, inclination, and differential settlement of adjacent buildings. The results indicate that the described deformation mode results in the significant horizontal extension and angular distortion of the building, ultimately leading to wall cracking. On this basis, a criterion for estimating damage in three-dimensional structural units is proposed. The effectiveness of the three-dimensional building damage criterion was validated through comparisons with multiple representative field observations. Damage evaluation can facilitate the selection of the most effective protective measures and minimize potential damage to adjacent buildings.

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三维变形场中开挖引起的地面移动对建筑物损伤的评价——以天津为例

深基坑开挖引起地面移动，对邻近建筑物造成结构破坏。本文以天津市为例，研究了开挖过程中相邻建筑的三维变形特征。监测指标，获得综合测量数据，包括连续墙水平挠度、地面横向和竖向移动、相邻建筑水平位移、倾斜、差沉降等。结果表明：所描述的变形模式导致建筑物显著的水平拉伸和角变形，最终导致墙体开裂。在此基础上，提出了三维结构单元损伤估计准则。通过与多个具有代表性的现场观测结果的对比，验证了三维建筑损伤判据的有效性。损害评估有助于选择最有效的保护措施，最大限度地减少对邻近建筑物的潜在损害。

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来源期刊

Acta Geotechnica ENGINEERING, GEOLOGICAL-

CiteScore

9.90

自引率

17.50%

发文量

297

审稿时长

4 months

期刊介绍： Acta Geotechnica is an international journal devoted to the publication and dissemination of basic and applied research in geoengineering – an interdisciplinary field dealing with geomaterials such as soils and rocks. Coverage emphasizes the interplay between geomechanical models and their engineering applications. The journal presents original research papers on fundamental concepts in geomechanics and their novel applications in geoengineering based on experimental, analytical and/or numerical approaches. The main purpose of the journal is to foster understanding of the fundamental mechanisms behind the phenomena and processes in geomaterials, from kilometer-scale problems as they occur in geoscience, and down to the nano-scale, with their potential impact on geoengineering. The journal strives to report and archive progress in the field in a timely manner, presenting research papers, review articles, short notes and letters to the editors.