Determination of liquid limit of high plasticity soil based on the cone penetration and casagrande method

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27120%2F16%3A86098735" target="_blank" >RIV/61989100:27120/16:86098735 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.5593/SGEM2016/B11/S02.096" target="_blank" >http://dx.doi.org/10.5593/SGEM2016/B11/S02.096</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5593/SGEM2016/B11/S02.096" target="_blank" >10.5593/SGEM2016/B11/S02.096</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Determination of liquid limit of high plasticity soil based on the cone penetration and casagrande method

Popis výsledku v původním jazyce

This paper presents results of experimental works focused on the determination of liquid limit of bentonite and a mixture of bentonite with sand. Both liquid limit and plastic limit are the most important Atterberg's limits, which are fundamental for the behaviour of cohesive soil. Generally, two basic methods for the evaluation of liquid limit are used - Casagrande method and cone penetrometer method. Standard cone penetrometer test (30 o/80 g cone) is based on assumption of uniform undrained shear strength 1.7 kPa at liquid limit for all types of soil. According Hansbo theory this assumption resulted to the penetration of 20 mm at liquid limit for widely used standard penetration test. However, for high plasticity soil this standard penetration approach gives significantly lower values of liquid limit in comparison with Casagrande cup test. Paper presents experimental values of the liquid limit of bentonite and its mixtures based on modificated Mohajerani methodology for the evaluation of cone penetration test (new calibration line for cone penetrometer liquid limit), comparison these results with the standard penetration test (cone penetration of 20 mm) and Casagrande (cup) method also. (C) SGEM2016.

Název v anglickém jazyce

Determination of liquid limit of high plasticity soil based on the cone penetration and casagrande method

Popis výsledku anglicky

This paper presents results of experimental works focused on the determination of liquid limit of bentonite and a mixture of bentonite with sand. Both liquid limit and plastic limit are the most important Atterberg's limits, which are fundamental for the behaviour of cohesive soil. Generally, two basic methods for the evaluation of liquid limit are used - Casagrande method and cone penetrometer method. Standard cone penetrometer test (30 o/80 g cone) is based on assumption of uniform undrained shear strength 1.7 kPa at liquid limit for all types of soil. According Hansbo theory this assumption resulted to the penetration of 20 mm at liquid limit for widely used standard penetration test. However, for high plasticity soil this standard penetration approach gives significantly lower values of liquid limit in comparison with Casagrande cup test. Paper presents experimental values of the liquid limit of bentonite and its mixtures based on modificated Mohajerani methodology for the evaluation of cone penetration test (new calibration line for cone penetrometer liquid limit), comparison these results with the standard penetration test (cone penetration of 20 mm) and Casagrande (cup) method also. (C) SGEM2016.

Druh

D - Stať ve sborníku

CEP obor

JM - Inženýrské stavitelství

OECD FORD obor

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Projekt

<a href="/cs/project/GA16-08937S" target="_blank" >GA16-08937S: Stav napětí a deformace vláknobetonových kompozitů v interakci se zemním prostředím</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

SGEM 2016 : 16th International Multidisciplinary Scientific Geoconference : proceedings : June 30 - July 6, 2016, Albena, Bulgaria. Geology, Hydrogeology, Engineering Geology and Geotechnics. Volume I.

ISBN

978-619-7105-55-1

ISSN

1314-2704

e-ISSN

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Počet stran výsledku

8

Strana od-do

761-768

Název nakladatele

STEF92 Technology Ltd.

Místo vydání

Sofia

Místo konání akce

Albena

Datum konání akce

30. 6. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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