Correlation Between Liquefaction Resistance and Shear Wave Velocity

Tokimatsu, Kohji; Uchida, Akihiko

doi:10.3208/sandf1972.30.2_33

Cited by 128 publications

(38 citation statements)

References 9 publications

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“…Figure 14 shows the relationships between the RL15 and small strain shear moduli, G* sN and GdN, which were measured immediately before the liquefaction tests. The values of G* sN and GdN were evaluated by the following equation in order to normalize for the eŠects of minimum void ratio, emin, and the stress level, as proposed by Tokimatsu and Uchida (1990).…”

Section: Liquefaction Propertiesmentioning

confidence: 99%

Aging Effects on Small Strain Shear Moduli and Liquefaction Properties of in-situ Frozen and Reconstituted Sandy Soils

Kamiya

Koseki

Sato

et al. 2009

Soils and Foundations

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Section: Liquefaction Propertiesmentioning

confidence: 99%

Aging Effects on Small Strain Shear Moduli and Liquefaction Properties of in-situ Frozen and Reconstituted Sandy Soils

Kamiya

Koseki

Sato

et al. 2009

Soils and Foundations

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“…In the present study we deal with the surface geophysical tool based on measurements. As pointed out by Dobry et al (1981), Seed et al (1983), Stoke et al (1988a, b), and Tokimatsu and Uchida (1990), the V s -based method is particularly useful in soils that are hard to sample, such as gravelly soils, where penetration tests may be unreliable, and at sites where borings may not be permitted, such as capped landfills. Silva et al (2003) noticed that the V s approach has as an advantage that it directly accommodates profile parametric uncertainty in a statistically rigorous manner,…”

Section: Evaluation Of Liquefaction Potentialmentioning

confidence: 95%

Evaluation of ground motion characteristics, effects of local geology and liquefaction susceptibility: the case of Itea, Corinth Gulf (Greece)

2007

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In the present paper we analyze the effect of local geology on ground motion by means of numerical calculations (numerical models) using total (TS) and effective stress (ES) methods. These numerical calculations have been applied to the site of Itea, Corinth Gulf, which was chosen based on liquefaction susceptibility criteria and field inspection. Data from seismic refraction experiments and cone penetration test N-values as well as selected records of ground motion in nearby areas were used to construct the input file for the numerical model. By means of dynamic analysis such characteristics of ground motion as acceleration time histories, response spectra, and amplification function were evaluated. A onedimensional soil amplification effect was clearly shown. Liquefaction probability at the Itea site was predicted based on the safety factor and the calculation of the induced settlement at the test site. Results of the TS and ES modeling lead us to conclude: (1) the presence of soft soil at Itea caused significant amplification (almost 2.5-fold higher magnitude) of the underlying bedrock motion and, therefore, can contribute to damage; (2) the area of Itea is highly susceptible to liquefaction due to presence of silty sand deposits at depths between 2.48 m (the position of the water table) and 12 m that demonstrate the rapid growth of the excess pore water pressure (EPWP) ratio with an increase in peak ground acceleration values.

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“…Vs dalga hızı hem sahada hemde laboratuvarda numuneler üzerinde belirlenebilmesinden dolayı karşılaştırma imkanı olan kolay ve hızlı bir yöntemdir. Özellikle SPT ve CPT ölçümleri yapılamayan ortamlarda da kolaylıkla elde edilebilen Vs verilerine dayalı sıvılaşma analizleri de son yıllarda sıklıkla kullanılmaktadır [25,28,9,10,[16][17][18][19] …”

Section: Gġrġġunclassified

Kayma Dalgası Hızı (Vs) Kullanılarak ErciĢ (Van) YerleĢim Alanının SıvılaĢma Potansiyelinin Değerlendirilmesi

Akkaya¹,

Övün²,

Özvan³

et al. 2017

Çukurova Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

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ÖzVan İli, Erciş İlçesi yerleşim alanı ve çevresi Kuvaterner yaşlı güncel çökeller üzerinde yeralan, yeraltısuyu seviyesi sığ, çevresinde tarihsel ve aletsel dönemde büyük deprem üretmiş aktif fayların yeraldığı, 23 Ekim 2011 Van (Mw=7,1) depremi sonrasında belli kesimlerinde sıvılaşma olayının gerçekleştiği önemli bir yerleşim yeridir. Tüm bu veriler, Erciş ve yakın çevresi için olası büyük bir depremde sıvılaşma ve yanal yayılma türü yüzey deformasyonlarının meydana gelebileceğini işaret etmektedir. Bu nedenle çalışmada, Kayma dalga hızları (Vs) kullanılarak Erciş yerleşim alanı ve çevresinin üç farklı deprem senaryosu için sıvılaşma analizleri yapılmıştır. Yapılan değerlendirmeler sonucunda, Erciş merkezinin yoğun olarak üzerinde bulunduğu eski göl çökellerinin sıvılaşma potansiyelinin "düşük-orta" olduğu belirlenmiştir. İnceleme alanının Van Gölü"ne yakın kıyı kesimleri ile inceleme alanının batısında sıvılaşma potansiyelinin diğer kesimlere göre daha yüksek olduğu hesaplanmıştır. Ayrıca, Erciş yerleşim alanında 23 Ekim 2011 Van depremi sonrasında arazide gözlenen yanal yayılmalar ve sıvılaşmaların bu çalışmada ön görülen senaryolardaki sınırlarla örtüştüğü belirlenmiştir.

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Correlation Between Liquefaction Resistance and Shear Wave Velocity

Cited by 128 publications

References 9 publications

Aging Effects on Small Strain Shear Moduli and Liquefaction Properties of in-situ Frozen and Reconstituted Sandy Soils

Aging Effects on Small Strain Shear Moduli and Liquefaction Properties of in-situ Frozen and Reconstituted Sandy Soils

Evaluation of ground motion characteristics, effects of local geology and liquefaction susceptibility: the case of Itea, Corinth Gulf (Greece)

Kayma Dalgası Hızı (Vs) Kullanılarak ErciĢ (Van) YerleĢim Alanının SıvılaĢma Potansiyelinin Değerlendirilmesi

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