Assessment of foundation damage during earthquakes using acoustic emission monitoring: An experimental study on the shaking table test

IF 3.3 2区工程技术 Q2 ENGINEERING, GEOLOGICAL

Soils and Foundations Pub Date : 2024-10-09 DOI:10.1016/j.sandf.2024.101473

Min-Jun Kim , Hyunwoo Kim , Jong-Won Lee , Tae-Min Oh

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引用次数: 0

Abstract

Assessing structural foundation damage following an earthquake is critical for safety evaluation. However, assessing the damage to pile foundations with traditional visual inspections and non-destructive testing methods is challenging. This study evaluated the use of acoustic emission (AE) monitoring for damage detection and location in foundation structures during earthquake simulations by conducting shaking table experiments. Scaled models of foundation structures with and without surrounding soil were used in the experiments, and the performance of the AE monitoring system was evaluated by comparing the AE parameters via visual inspection. The experimental results showed that the AE monitoring system could effectively predict the initiation of cracks in foundation structures that experienced an earthquake. In addition, an appropriate filtering criterion for the shaking table experiments was established based on the AE characteristics of the foundation structures during the earthquake simulation, thereby improving the performance of the AE monitoring system for damage location. Consequently, this study contributed to a better understanding of the applicability of AE monitoring systems to foundation structures during earthquakes.

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利用声发射监测评估地震期间地基破坏情况：振动台试验研究

评估地震后结构地基的损坏情况对于安全评估至关重要。然而，使用传统的目视检查和非破坏性测试方法评估桩基损坏情况具有挑战性。本研究通过振动台实验，评估了在地震模拟中使用声发射（AE）监测来检测和定位地基结构的损坏情况。实验中使用了有周围土壤和无周围土壤的地基结构比例模型，并通过比较视觉检测的声发射参数评估了声发射监测系统的性能。实验结果表明，AE 监测系统可以有效预测地震中地基结构裂缝的产生。此外，还根据地震模拟过程中地基结构的 AE 特性，为振动台实验建立了适当的滤波准则，从而提高了 AE 监测系统的损坏定位性能。因此，本研究有助于更好地理解地震期间 AE 监测系统对地基结构的适用性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Soils and Foundations 工程技术-地球科学综合

CiteScore

6.40

自引率

8.10%

发文量

审稿时长

5 months

期刊介绍： Soils and Foundations is one of the leading journals in the field of soil mechanics and geotechnical engineering. It is the official journal of the Japanese Geotechnical Society (JGS)., The journal publishes a variety of original research paper, technical reports, technical notes, as well as the state-of-the-art reports upon invitation by the Editor, in the fields of soil and rock mechanics, geotechnical engineering, and environmental geotechnics. Since the publication of Volume 1, No.1 issue in June 1960, Soils and Foundations will celebrate the 60th anniversary in the year of 2020. Soils and Foundations welcomes theoretical as well as practical work associated with the aforementioned field(s). Case studies that describe the original and interdisciplinary work applicable to geotechnical engineering are particularly encouraged. Discussions to each of the published articles are also welcomed in order to provide an avenue in which opinions of peers may be fed back or exchanged. In providing latest expertise on a specific topic, one issue out of six per year on average was allocated to include selected papers from the International Symposia which were held in Japan as well as overseas.