A computer-vision-based model updating strategy for shield tunnels with cracks
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A4 Artikkeli konferenssijulkaisussa
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2024
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en
Pages
8
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Tunnelling for a Better Life - Proceedings of the ITA-AITES World Tunnel Congress, WTC 2024, pp. 3342-3349
Abstract
This paper presents a method that enables a finite element (FE) model of shield tunnels to update the geometric changes caused by cracks, using computer vision (CV) techniques and geometric analyses. Currently, there is a shortage of research on the automatic utilization of tunnel damage detection information for updating FE models. Thus, the objective of this study is to automate the process from tunnel damage detection to numerical analyses in order to quickly evaluate the structural capacity. The Segment Anything Model (SAM) and CV techniques are employed to determine the shapes and dimensions of both tunnel components and damages. Geometric analyses are utilized to develop algorithms that automatically transform coordinates and select elements of FE models for updating the geometric changes. A tunnel segment test is conducted to verify the effectiveness of the proposed technique and algorithms.Description
Publisher Copyright: © 2024 The Author(s).
Keywords
Computer vision techniques, Finite elements model, Geometric analyses, Segment anything model, Shield tunnel, Tunnel cracks
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Citation
Chang, X, Zhang, Y & Fu, Y 2024, A computer-vision-based model updating strategy for shield tunnels with cracks . in J Yan, T Celestino, M Thewes & E Eberhardt (eds), Tunnelling for a Better Life - Proceedings of the ITA-AITES World Tunnel Congress, WTC 2024 . CRC Press, pp. 3342-3349, World Tunnel Congress, Shenzhen, China, 19/04/2024 . https://doi.org/10.1201/9781003495505-444