Anisotropy and its relation to liquefaction resistance of granular material

This research establishes quantitative relationships between soil's anisotropy and liquefaction resistance for granular materials. Uniform medium density (Dr = 50%) sand specimens were prepared using three different sample preparation techniques (air pluviated (AP), moist tamped (MT), and moist vibrated (MV)) to create different initial soil fabrics. Undrained cyclic triaxial tests were then performed to determine the liquefaction resistance of each soil specimen. On the same specimens in the triaxial cell, vertical and horizontal compression wave velocities and vertical shear wave velocity (Vs) were measured using piezoelectric bender elements. Anisotropic (transversely isotropic) elastic constants of the soil specimens were determined from the elastic wave measurements and additional consolidation test data. With the aid of additional data from earlier discrete element model (DEM) simulations, anisotropic parameters, which influence the liquefaction resistance, were examined. It was found that when liquefaction resistance is divided by G12/(E1/E2)3, by G average/(E1E2)3, or by V s 5.0, liquefaction resistance curves converge to a unique curve regardless of the sample preparation techniques. Liquefaction Stress Ratio Reduction Factor (LSRRF) was introduced to estimate the reduction of liquefaction cyclic stress ratio of an anisotropic specimen from the isotropic specimen as simple functions of (E1/E2)-5.0 or (Vs/Vs(iso.))5.0.

Dergi Adı Soils and Foundations
Dergi Cilt Bilgisi 43
Dergi Sayısı 5
Sayfalar 149 - 159
Yayın Yılı 2003
Eser Adı
[dc.title]
Anisotropy and its relation to liquefaction resistance of granular material
Yazar
[dc.contributor.author]
Ishibashi I.
Yazar
[dc.contributor.author]
Capar O.F.
Yayın Yılı
[dc.date.issued]
2003
Yayıncı
[dc.publisher]
Japanese Geotechnical Society
Yayın Türü
[dc.type]
article
Özet
[dc.description.abstract]
This research establishes quantitative relationships between soil's anisotropy and liquefaction resistance for granular materials. Uniform medium density (Dr = 50%) sand specimens were prepared using three different sample preparation techniques (air pluviated (AP), moist tamped (MT), and moist vibrated (MV)) to create different initial soil fabrics. Undrained cyclic triaxial tests were then performed to determine the liquefaction resistance of each soil specimen. On the same specimens in the triaxial cell, vertical and horizontal compression wave velocities and vertical shear wave velocity (Vs) were measured using piezoelectric bender elements. Anisotropic (transversely isotropic) elastic constants of the soil specimens were determined from the elastic wave measurements and additional consolidation test data. With the aid of additional data from earlier discrete element model (DEM) simulations, anisotropic parameters, which influence the liquefaction resistance, were examined. It was found that when liquefaction resistance is divided by G12/(E1/E2)3, by G average/(E1E2)3, or by V s 5.0, liquefaction resistance curves converge to a unique curve regardless of the sample preparation techniques. Liquefaction Stress Ratio Reduction Factor (LSRRF) was introduced to estimate the reduction of liquefaction cyclic stress ratio of an anisotropic specimen from the isotropic specimen as simple functions of (E1/E2)-5.0 or (Vs/Vs(iso.))5.0.
Kayıt Giriş Tarihi
[dc.date.accessioned]
2019-12-23
Açık Erişim Tarihi
[dc.date.available]
2019-12-23
Yayın Dili
[dc.language.iso]
eng
Konu Başlıkları
[dc.subject]
Anisotropy
Konu Başlıkları
[dc.subject]
Discrete element model
Konu Başlıkları
[dc.subject]
Elastic modulus
Konu Başlıkları
[dc.subject]
Granular material
Konu Başlıkları
[dc.subject]
Laboratory test
Konu Başlıkları
[dc.subject]
Liquefaction
Konu Başlıkları
[dc.subject]
Numerical simulation
Konu Başlıkları
[dc.subject]
Piezoelectric sensor
Konu Başlıkları
[dc.subject]
Wave velocity (IGC: D7)
Haklar
[dc.rights]
info:eu-repo/semantics/openAccess
ISSN
[dc.identifier.issn]
0038-0806
İlk Sayfa Sayısı
[dc.identifier.startpage]
149
Son Sayfa Sayısı
[dc.identifier.endpage]
159
Dergi Adı
[dc.relation.journal]
Soils and Foundations
Dergi Sayısı
[dc.identifier.issue]
5
Dergi Cilt Bilgisi
[dc.identifier.volume]
43
Tek Biçim Adres
[dc.identifier.uri]
https://dx.doi.org/10.3208/sandf.43.5_149
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/4291
Görüntülenme Sayısı ( Şehir )
Görüntülenme Sayısı ( Ülke )
Görüntülenme Sayısı ( Zaman Dağılımı )
Görüntülenme
14
09.12.2022 tarihinden bu yana
İndirme
1
09.12.2022 tarihinden bu yana
Son Erişim Tarihi
23 Aralık 2023 07:28
Google Kontrol
Tıklayınız
liquefaction resistance specimens specimen sample vertical triaxial cyclic anisotropic elastic techniques preparation additional different parameters simple functions examined influence (E1/E2)-5 divided simulations element discrete (Vs/Vs(iso earlier curves Reduction Stress Liquefaction regardless Factor unique converge (LSRRF)
6698 sayılı Kişisel Verilerin Korunması Kanunu kapsamında yükümlülüklerimiz ve çerez politikamız hakkında bilgi sahibi olmak için alttaki bağlantıyı kullanabilirsiniz.

creativecommons
Bu site altında yer alan tüm kaynaklar Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.
Platforms