Geotechnical reconnaissance and liquefaction analyses of a liquefaction site with silty fine sand in Southern Taiwan

Wen Jong Chang, Sheng Huoo Ni, An Bin Huang, Yan Hong Huang, Yu Zhang Yang

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Geotechnical reconnaissance of a recurrent liquefaction site at a Quaternary alluvial deposit in southern Taiwan was conducted to establish a comprehensive case history for liquefaction on silty fine sand with high fines content. The liquefaction occurred at a silty fine sand layer with D50=0.09mm and fines content greater than 35% and was triggered by a Mw=6.4 earthquake on March 4, 2010, which induced maximum horizontal acceleration up to 0.189g at the site. In situ subsurface characterizations, including standard penetration test, cone penetration test, and shear wave velocity measurement, were performed as well as cyclic simple shear tests on undisturbed specimens retrieved by a modified hydraulic piston sampler. Comparisons of cyclic resistance ratios (CRRs) indicate that CPT sounding with standard penetration rate could overestimate the resistance ratio and drainage conditions during penetration should be considered for high fines content soil in the liquefaction analysis. Additionally, variations of CRRs from different in situ tests indicate that correlations among in situ tests and CRR could be soil specific and precautions should be taken when using these curves on silty fine sands.

Original languageEnglish
Pages (from-to)235-245
Number of pages11
JournalEngineering Geology
Volume123
Issue number3
DOIs
Publication statusPublished - 2011 Nov 13

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Geology

Fingerprint Dive into the research topics of 'Geotechnical reconnaissance and liquefaction analyses of a liquefaction site with silty fine sand in Southern Taiwan'. Together they form a unique fingerprint.

  • Cite this