CONSIDERATIONS FOR BRITTLENESS IN TAILINGS
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F22%3A00360483" target="_blank" >RIV/68407700:21110/22:00360483 - isvavai.cz</a>
Result on the web
<a href="https://ojs.cvut.cz/ojs/index.php/APP/article/view/7850" target="_blank" >https://ojs.cvut.cz/ojs/index.php/APP/article/view/7850</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
CONSIDERATIONS FOR BRITTLENESS IN TAILINGS
Original language description
Brittleness is an important geotechnical parameter of soils as it describes the degree of reduction of the soil shear resistance after reaching the peak strength. [1] described soil brittleness by means of a brittleness index (IB), which is the ratio of the shear resistance loss to the peak shear strength. The IB has become a common soil parameter that is used as an indicator for the soil susceptibility to liquefaction. However, IB does not consider the rate at which the soil resistance reduces, the development of excess pore water pressure and it ignores the stress strain relationship. As a result the same IB can be calculated for a soil that collapses over a very small strain range and a soil that gradually reduces its shear resistance over extensive strain levels as long as both soils have similar peak and residual shear strengths. This paper discusses the root causes of the shear resistance loss and proposes a modification of the IB parameter to take account of the rate of the shear resistance loss, which will help to better depict the stress-strain behaviour of strain softening soils. This paper also distinguishes between structural brittleness and undrained brittleness and provides a clear definition of each to improve the understanding of tailings among practitioners.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20701 - Environmental and geological engineering, geotechnics
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
48th CONFERENCE FOUNDATION ENGINEERING 2020
ISBN
978-80-01-06944-8
ISSN
2336-5382
e-ISSN
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Number of pages
48
Pages from-to
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Publisher name
České vysoké učení technické v Praze
Place of publication
Praha
Event location
Brno
Event date
Nov 9, 2020
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000833534300002