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Title:Effect of plasticity and normal stress on the undrained shear modulus of clayey soils
Authors:ID Jesmani, Mehrab (Author)
ID Kashani, Hamed Faghihi (Author)
ID Kamalzare, Mehrad (Author)
ID Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru (Copyright holder)
Files:.pdf Acta_geotechnica_Slovenica_2010_Jesmani,_Kashani,_Kamalzare_Effect_of_plasticity_and_normal_stress_on_the_undrained_shear_modulus_of_cla.pdf (703,46 KB)
MD5: 3390B642D7CDC476E5B57187B169B30F
PID: 20.500.12556/dkum/f6658249-0e45-41fe-a28b-5e3739a05e61
 
URL http://fgserver3.fg.um.si/journal-ags/2010-1/article-3.asp
 
Language:English
Work type:Scientific work
Typology:1.01 - Original Scientific Article
Organization:FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
Abstract:The shear modulus, known as Gmax, is a key parameter for predicting the static and dynamic behavior of soils. Its value decreases by increasing the shear strain. This is because of reducing the soil’s stiffness as a result of increasing the shear deformation. The increasing of the shear modulus by increasing the shear strain is affected by some of the soil properties, such as the Void ratio (e), the Over consolidated ratio (OCR), the Normal stress (σ), the Plasticity index (PI), the Water content (ω%), the Shear strain rate, the Soil structure, and the Loading history, etc. In this paper, undrained, direct shear tests were conducted to study the effect of the plasticity index (PI) and the normal stress (σ) on the shear behavior and the shear modulus of remolded clays. The results show that the normalized shear modulus at a constant strain will generally increase as the σ and PI increase, and the common empirical equations for undisturbed soils at γ = 0~0.1 might be applicable for the disturbed soils too.
Keywords:plasticity index, normal stress, shear modulus, disturbed clayey soils
Publication status:Published
Publication version:Version of Record
Year of publishing:2010
Number of pages:str. 47-59
Numbering:Letn. 7, št. 1
PID:20.500.12556/DKUM-70726 New window
ISSN:1854-0171
UDC:551:624.13
ISSN on article:1854-0171
COBISS.SI-ID:257453312 New window
NUK URN:URN:SI:UM:DK:3X925DAU
Copyright:Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru
Publication date in DKUM:11.06.2018
Views:1178
Downloads:139
Metadata:XML DC-XML DC-RDF
Categories:Misc.
:
JESMANI, Mehrab, KASHANI, Hamed Faghihi and KAMALZARE, Mehrad, 2010, Effect of plasticity and normal stress on the undrained shear modulus of clayey soils. Acta geotechnica Slovenica [online]. 2010. Vol. 7, no. 1, p. 47–59. [Accessed 1 April 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=70726
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Record is a part of a journal

Title:Acta geotechnica Slovenica
Shortened title:Acta geotech. Slov.
Publisher:Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru
ISSN:1854-0171
COBISS.SI-ID:215987712 New window

Secondary language

Language:Slovenian
Title:Vpliv plastičnosti in normalne napetosti na nedrenirane strižne module glinenih zemljin
Abstract:Strižni modul, znan kot Gmax, je ključni parameter za napovedovanje statičnega in dinamičnega obnašanja zemljin. Njegova vrednost se zmanjšuje s povečanjem strižne deformacije. To je zaradi zmanjšanja trdnosti zemljin kot posledice povečanja strižne deformacije. Na povečanje strižnega modula s povečanjem strižne deformacije vplivajo nekatere lastnosti tal, kot so količnik por (e), prekonsolidacijsko razmerje (OCR), normalna napetost (σ), indeks plastičnost (PI), vsebnost vode (w%), strižno deformacijsko razmerje, struktura tal, zgodovina obremenjevanja, itd. V članku so prikazani rezultati direktnih nedreniranih strižnih preiskav porušenih glin, ki so bile izvedene z namenom proučevanja vpliva indeksa plastičnosti (PI) in normalne napetosti (σ) na njihove strižne lastnosti in strižni modul. Rezultati kažejo, da normalizirani strižni moduli pri konstantni napetosti v splošnem naraščajo z naraščanjem indeksa plastičnosti in normalne napetosti in da je lahko splošna empirična enačba za intaktne zemljine pri γ = 0~0.1 uporabna tudi za porušene zemljine.
Keywords:geološki materiali, glineni materiali, zemljine, plastičnost, strižne lastnosti, strižni modul, normalna napetost


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  1. Acta geotechnica Slovenica

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