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Statements

Subject Item
n2:RIV%2F00216208%3A11310%2F12%3A10132220%21RIV13-GA0-11310___
rdf:type
skos:Concept n12:Vysledek
rdfs:seeAlso
http://dx.doi.org/10.1002/nag.990
dcterms:description
Two trial motorway embankments built on a landfill consisting of clayey lumps were monitored over the period of 3 and 5 years, respectively. The subsoil of the embankment was instrumented by hydrostatic levelling profiles, pore pressure transducers and depth reference points installed in boreholes. An advanced constitutive model for clays (hypoplastic model for clays with meta-stable structure) was used for numerical modelling of both case histories. Basic hypoplastic model for clays was calibrated using isotropic compression tests and triaxial compression tests on reconstituted clay. Three additional model parameters describing the effects of lumpy structure were calibrated using oedometer tests on specimens prepared from scaled-down lumpy material (material with smaller size of clay lumps). The performance of the model was evaluated by comparison with the results of the centrifuge model of self-weight consolidated landfill. Finally, the hypoplastic model was used for simulation of both trial embankments and the results were compared with in situ measurements. The degradation of the lumpy structure of the upper layer of the in situ landfill due to weathering was back analysed using monitoring data. Two trial motorway embankments built on a landfill consisting of clayey lumps were monitored over the period of 3 and 5 years, respectively. The subsoil of the embankment was instrumented by hydrostatic levelling profiles, pore pressure transducers and depth reference points installed in boreholes. An advanced constitutive model for clays (hypoplastic model for clays with meta-stable structure) was used for numerical modelling of both case histories. Basic hypoplastic model for clays was calibrated using isotropic compression tests and triaxial compression tests on reconstituted clay. Three additional model parameters describing the effects of lumpy structure were calibrated using oedometer tests on specimens prepared from scaled-down lumpy material (material with smaller size of clay lumps). The performance of the model was evaluated by comparison with the results of the centrifuge model of self-weight consolidated landfill. Finally, the hypoplastic model was used for simulation of both trial embankments and the results were compared with in situ measurements. The degradation of the lumpy structure of the upper layer of the in situ landfill due to weathering was back analysed using monitoring data.
dcterms:title
Numerical modelling of lumpy clay landfill Numerical modelling of lumpy clay landfill
skos:prefLabel
Numerical modelling of lumpy clay landfill Numerical modelling of lumpy clay landfill
skos:notation
RIV/00216208:11310/12:10132220!RIV13-GA0-11310___
n12:predkladatel
n13:orjk%3A11310
n3:aktivita
n7:Z n7:P
n3:aktivity
P(GA103/07/0678), P(GA205/08/0732), Z(MSM0021620855)
n3:cisloPeriodika
1
n3:dodaniDat
n4:2013
n3:domaciTvurceVysledku
n15:6661025 n15:8447721 n15:1444816
n3:druhVysledku
n21:J
n3:duvernostUdaju
n9:S
n3:entitaPredkladatele
n19:predkladatel
n3:idSjednocenehoVysledku
155024
n3:idVysledku
RIV/00216208:11310/12:10132220
n3:jazykVysledku
n20:eng
n3:klicovaSlova
embankment; high compressibility; soil structure; double porosity; hypoplasticity; clay
n3:klicoveSlovo
n6:embankment n6:clay n6:soil%20structure n6:hypoplasticity n6:high%20compressibility n6:double%20porosity
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[53518809FEB1]
n3:nazevZdroje
International Journal for Numerical and Analytical Methods in Geomechanics
n3:obor
n18:JM
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:projekt
n17:GA103%2F07%2F0678 n17:GA205%2F08%2F0732
n3:rokUplatneniVysledku
n4:2012
n3:svazekPeriodika
36
n3:tvurceVysledku
Najser, Jan Boháč, Jan Mašín, David
n3:wos
000298476400002
n3:zamer
n14:MSM0021620855
s:issn
0363-9061
s:numberOfPages
19
n16:doi
10.1002/nag.990
n11:organizacniJednotka
11310