ORIGINAL RESEARCH article
Front. Built Environ.
Sec. Structural Sensing, Control and Asset Management
Volume 11 - 2025 | doi: 10.3389/fbuil.2025.1514217
This article is part of the Research TopicAdvancements in Safety and Durability Assessment and Strengthening and Retrofitting of Existing StructuresView all articles
A Combined XFEM and RSM Approach for Predicting Crack 2 Propagation in Nearby Buildings During Foundation Pit Con-3 struction 4
Provisionally accepted
- 1Metro Project Management Branch of Nanchang Rail Transit Group Co., Ltd., Nanchang, Jiangxi Province, China
- 2CCTEB Infrastructure Construction Investment Co., Ltd, Wuhan, China
- 3CHINA CONSTRUCTION THIRD ENGINEERING BUREAU GROUP CO.,LTD, Wuhan, Hebei Province, China
- 4School of Civil Engineering, Central South University, Changsha, Hunan Province, China
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This paper addresses the issue of crack expansion in adjacent buildings caused by foun-15 dation pit construction and develops a predictive model using the response surface method. Nine 16 factors, including the distance between the foundation pit and the building, soil elastic modulus, 17 and density, were selected as independent variables, with the crack propagation area as the depend-18 ent variable. An orthogonal test of 32 conditions was conducted, and crack propagation was ana-19 lyzed using the FEM-XFEM model. Results indicate that soil elastic modulus, Poisson's ratio, and 20 distance between the pit and building significantly impact crack propagation. A predictive model 21 was developed through ridge regression and validated with additional test conditions. Single-factor 22 analysis showed that elastic modulus and Poisson's ratio of the silty clay layer, elastic modulus of 23 sandy soil, and pit distance have near-linear effects on crack propagation. In contrast, cohesion, 24 density, and Poisson's ratio of sandy soil exhibited extremum points, with certain factors showing 25 high sensitivity in specific ranges. This study provides theoretical guidance for mitigating crack 26 propagation in adjacent buildings during excavation.
Keywords: Impact of Foundation Pit Excavation, Crack propagation prediction, Damage in Adja-28 cent Buildings, Response Surface Methodology, Finite Element Method 29 30
Received: 20 Oct 2024; Accepted: 21 Apr 2025.
Copyright: © 2025 Wu, Wang, Kuang, Zhu, Xiao and Yang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Pengliang Yang, School of Civil Engineering, Central South University, Changsha, 410083, Hunan Province, China
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