Soil Liquefaction and Ground Settlements in 6 February 2018 Hualien, Taiwan, Earthquake

Abstract

Research Article| October 10, 2018 Soil Liquefaction and Ground Settlements in 6 February 2018 Hualien, Taiwan, Earthquake Yung‐Yen Ko; Yung‐Yen Ko aDepartment of Civil Engineering, National Cheng Kung University, No. 1, University Road, Tainan 70101, Taiwan, yyko@mail.ncku.edu.tw Search for other works by this author on: GSW Google Scholar Shang‐Yi Hsu; Shang‐Yi Hsu bNational Center for Research on Earthquake Engineering, National Applied Research Laboratories, No. 200, Section 3, Hsinhai Road, Taipei 10668, Taiwan Search for other works by this author on: GSW Google Scholar Hsuan‐Chih Yang; Hsuan‐Chih Yang bNational Center for Research on Earthquake Engineering, National Applied Research Laboratories, No. 200, Section 3, Hsinhai Road, Taipei 10668, Taiwan Search for other works by this author on: GSW Google Scholar Chih‐Chieh Lu; Chih‐Chieh Lu bNational Center for Research on Earthquake Engineering, National Applied Research Laboratories, No. 200, Section 3, Hsinhai Road, Taipei 10668, Taiwan Search for other works by this author on: GSW Google Scholar Yu‐Wei Hwang; Yu‐Wei Hwang bNational Center for Research on Earthquake Engineering, National Applied Research Laboratories, No. 200, Section 3, Hsinhai Road, Taipei 10668, Taiwan Search for other works by this author on: GSW Google Scholar Chia‐Hung Liu; Chia‐Hung Liu bNational Center for Research on Earthquake Engineering, National Applied Research Laboratories, No. 200, Section 3, Hsinhai Road, Taipei 10668, Taiwan Search for other works by this author on: GSW Google Scholar Jin‐Hung Hwang Jin‐Hung Hwang cDepartment of Civil Engineering, National Central University, No. 300, Zhongda Road, Zhongli District, Taoyuan 32001, Taiwan Search for other works by this author on: GSW Google Scholar Seismological Research Letters (2019) 90 (1): 51–59. https://doi.org/10.1785/0220180196 Article history first online: 10 Oct 2018 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Yung‐Yen Ko, Shang‐Yi Hsu, Hsuan‐Chih Yang, Chih‐Chieh Lu, Yu‐Wei Hwang, Chia‐Hung Liu, Jin‐Hung Hwang; Soil Liquefaction and Ground Settlements in 6 February 2018 Hualien, Taiwan, Earthquake. Seismological Research Letters 2018;; 90 (1): 51–59. doi: https://doi.org/10.1785/0220180196 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietySeismological Research Letters Search Advanced Search ABSTRACT Soil liquefaction and ground settlements during an earthquake of ML 6.2 that took place on 6 February 2018 in Hualien, Taiwan are presented in this article based on the results of a field reconnaissance that focused on geotechnical aspects. Cracks of road pavement with sand eruption were found in a former wetland. Slight settlement of several residential buildings that are located near the Meilun River was observed. In addition, minor sand boils and lateral spreading occurred at the riverbanks of the Meilun and Hualien Rivers. In general, liquefaction and ground settlements in Hualien City were sparse and localized in weak ground, causing no damage to structures and facilities. However, in the Port of Hualien, ground settlements up to 50–60 cm, as well as considerable pavement cracks, were induced in the backland of several gravity‐type wharves, especially those in the jetty area. Many of the cracks and settlements were accompanied by eruption of the mixture of sand and gravel with a maximum grain size up to 10 cm. These phenomena were due to the liquefaction of the backfill material. Fortunately, there was only scarcely noticeable tilt and structural damage of the caisson quay walls and scarce settlement of the apron. Thus, the serviceability of these wharves was not greatly influenced. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.