標題: Geotechnical reconnaissance and liquefaction analyses of a liquefaction site with silty fine sand in Southern Taiwan
作者: Chang, Wen-Jong
Ni, Sheng-Huoo
Huang, An-Bin
Huang, Yan-Hong
Yang, Yu-Zhang
土木工程學系
Department of Civil Engineering
關鍵字: Soil liquefaction;Fines content;Silty sand;Case history
公開日期: 13-十一月-2011
摘要: 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 D(50) = 0.09 mm and fines content greater than 35% and was triggered by a M(w) = 6.4 earthquake on March 4,2010, which induced maximum horizontal acceleration up to 0.189 g 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. (C) 2011 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.enggeo.2011.09.003
http://hdl.handle.net/11536/14653
ISSN: 0013-7952
DOI: 10.1016/j.enggeo.2011.09.003
期刊: ENGINEERING GEOLOGY
Volume: 123
Issue: 3
起始頁: 235
結束頁: 245
顯示於類別:期刊論文


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  1. 000297182200009.pdf