Determination of K0 in Aged Clays Using Marchetti´s Flat Dilatometer

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F20%3A00337948" target="_blank" >RIV/68407700:21110/20:00337948 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.waset.org" target="_blank" >http://www.waset.org</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Determination of K0 in Aged Clays Using Marchetti´s Flat Dilatometer

Popis výsledku v původním jazyce

This study deals with the determination of the earth’s pressure coefficient at rest “K0” by field measurement using Marchetti´s flat dilatometer (DMT) in aged clays. Generally, it is a complicated task to determine K0 coefficient in a natural soil let alone in aged clays. In these cases, all available techniques for determining of K0 are affected by non-negligible imperfections and uncertainties which leads to unrealistic results. However, this fact is often ignored. For example, the original Marchetti´s formula for computing of K0,DMT is widely used for all types of soils, despite author´s warnings about the limited usability for soils affected by aging effects. This study shows an effective approach how to determine K0 coefficient. It is a combination of the determining of K0 by using back numerical analysis (BNA) and field measurements by DMT which leads to a more realistic result. The proceeding describes a case study on aged clays of the Carpathian Foredeep in the Czech Republic. The main finding is that the original Marchetti´s formula gives noticeably distorted results. On the other hand, the so-called Kouretzis´ equation seems to be applicable for old clays.

Název v anglickém jazyce

Determination of K0 in Aged Clays Using Marchetti´s Flat Dilatometer

Popis výsledku anglicky

This study deals with the determination of the earth’s pressure coefficient at rest “K0” by field measurement using Marchetti´s flat dilatometer (DMT) in aged clays. Generally, it is a complicated task to determine K0 coefficient in a natural soil let alone in aged clays. In these cases, all available techniques for determining of K0 are affected by non-negligible imperfections and uncertainties which leads to unrealistic results. However, this fact is often ignored. For example, the original Marchetti´s formula for computing of K0,DMT is widely used for all types of soils, despite author´s warnings about the limited usability for soils affected by aging effects. This study shows an effective approach how to determine K0 coefficient. It is a combination of the determining of K0 by using back numerical analysis (BNA) and field measurements by DMT which leads to a more realistic result. The proceeding describes a case study on aged clays of the Carpathian Foredeep in the Czech Republic. The main finding is that the original Marchetti´s formula gives noticeably distorted results. On the other hand, the so-called Kouretzis´ equation seems to be applicable for old clays.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

IRC 2020 IX. international research conference proceeding

ISBN

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ISSN

1307-6892

e-ISSN

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Počet stran výsledku

4

Strana od-do

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Název nakladatele

World Academy of Science, Engineering and Technology

Místo vydání

Toronto

Místo konání akce

Denpasar, Bali

Datum konání akce

13. 1. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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