Geotechnical reconnaissance of Hualien Port after the 2024 ML 7.2 hualien earthquake
Journal
Soil Dynamics and Earthquake Engineering
Journal Volume
198
Start Page
109613
ISSN
0267-7261
Date Issued
2025-11
Author(s)
Yang, Hsuan-Chih
Huang, Chun-Jia
Ko, Yung-Yen
Chen, Kuan-Yu
Tsai, Chi-Chin
Lin, Chun-Hung
Chu, Min-Chien
Jhuo, Yu-Syuan
Hsueh, Yu-Ting
Okano, Shodai
Wang, LeeYi
Abstract
Unmanned aerial vehicles were used for comprehensive aerial surveys over the entire port area of Hualien, Taiwan, after the 2024 ML 7.2 earthquake for the purpose of mapping topography and building a three-dimensional point cloud model. Surveys of multichannel surface waves and horizontal to vertical spectral ratios were conducted at wharf No. 25 of the port, which suffered severe damage. An investigation of the extent of liquefaction is described, and descriptions of the seismic displacement-induced cracking of the caisson are provided. This study comprehensively integrates the observed geotechnical engineering-related disasters at Hualien Port caused by the earthquake. Through the on-site investigations and measurements, the interpreted information serves as a valuable reference for devising strategies in the event of future seismic events.
Subjects
Geotechnical reconnaissance
Gravelly soils
Port structure
Soil liquefaction
SDGs
Publisher
Elsevier BV
Type
journal article