Evaluation of soil liquefaction in the Chi-Chi, Taiwan earthquake using CPT

Chih Sheng Ku, Der Her Lee, Jian Hong Wu

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

During the 1999 Chi-Chi, Taiwan earthquake, many sand boiling phenomena were observed in central Taiwan, which caused severe ground settlement and structure damages. According to the installed accelerograms, the peak ground surface horizontal accelerations in the liquefaction-affected areas range from 774.42 to 121.3 gal. The writers carried out an extensive investigation of soil liquefaction in this earthquake. In this paper, we present results of the CPT exploration and post-earthquake liquefaction analysis. Two hundred and seventy five (275) cone penetration test data were collected from the liquefaction-affected areas, and 46 liquefaction case histories and 88 non-liquefaction case histories were derived that can be used to evaluate the accuracy of existing liquefaction evaluation models. In addition, the strength of the liquefied soils after earthquake and the implication of its liquefaction potential in the future event are discussed.

Original languageEnglish
Pages (from-to)659-673
Number of pages15
JournalSoil Dynamics and Earthquake Engineering
Volume24
Issue number9-10
DOIs
Publication statusPublished - 2004 Oct 1

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology
  • Soil Science

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