Failure of engineering structures and associated geotechnical problems during the 2022 M L 6.8 Chihshang earthquake, Taiwan

Yung Yen Ko, Chi Chin Tsai, Jin Hung Hwang, Yu Wei Hwang, Louis Ge, Min Chien Chu

研究成果: 雜誌貢獻期刊論文同行評審

9 引文 斯高帕斯(Scopus)

摘要

On September 18, 2022, an earthquake with a local magnitude (M L) 6.8 struck the southern part of Longitudinal Valley in southeastern Taiwan, resulting in the collapse and damage of many engineering structures. A field reconnaissance was conducted at the selected sites that experienced building and bridge damages and is presented in this paper. The focus is on geotechnical problems such as strong ground motion, ground rupture, soil liquefaction, and their influence on engineering structures. Strong motions of up to 0.6 g were induced, with similar intensity in the vertical and horizontal components near the epicenter. Widespread ground rupture traces were observed along the officially recognized active faults, inducing offsets up to tens of centimeters. Soil liquefaction was also noticed in this region, mainly on the river flood plain and characterized as gravel layer. The possible influence of these observed geotechnical characteristics on the damage pattern or failure mode of buildings, bridges, embankments, and levees was discussed and interpreted insightfully. The perspectives presented in this paper may serve as a reference to disaster prevention and mitigation in future events.

原文???core.languages.en_GB???
頁(從 - 到)55-94
頁數40
期刊Natural Hazards
118
發行號1
DOIs
出版狀態已出版 - 8月 2023

指紋

深入研究「Failure of engineering structures and associated geotechnical problems during the 2022 M L 6.8 Chihshang earthquake, Taiwan」主題。共同形成了獨特的指紋。

引用此