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Statements

Subject Item
n2:RIV%2F00216208%3A11310%2F10%3A10081100%21RIV11-GA0-11310___
rdf:type
n5:Vysledek skos:Concept
dcterms:description
The paper presents 2D and 3D analyses of an exploratory adit and 3D analyses of a NATM tunnel in stiff clays using two constitutive models (hypoplastic model for clays and Mohr-Coulomb model). The convergence-confinement method CCM with stress-release parameter lambda was used in 2D simulations of the adit. To ensure that the 2D and 3D analyses give the same displacement field the parameter lambda had been optimised. The constitutive model parameters were subsequently optimised using monitoring data from the adit. Parameters of the hypoplastic model did not change substantially. The Mohr-Coulomb model gives correct predictions only for unrealistic model parameters and low K0 values. The 3D model of the tunnel with optimised parameters was set together and resulting simulations compared with actual monitoring data. In a case of hypoplastic model a good agreement was found. The paper presents 2D and 3D analyses of an exploratory adit and 3D analyses of a NATM tunnel in stiff clays using two constitutive models (hypoplastic model for clays and Mohr-Coulomb model). The convergence-confinement method CCM with stress-release parameter lambda was used in 2D simulations of the adit. To ensure that the 2D and 3D analyses give the same displacement field the parameter lambda had been optimised. The constitutive model parameters were subsequently optimised using monitoring data from the adit. Parameters of the hypoplastic model did not change substantially. The Mohr-Coulomb model gives correct predictions only for unrealistic model parameters and low K0 values. The 3D model of the tunnel with optimised parameters was set together and resulting simulations compared with actual monitoring data. In a case of hypoplastic model a good agreement was found.
dcterms:title
Simulations of a NATM tunnel in a stiff clay using hypoplastic model Simulations of a NATM tunnel in a stiff clay using hypoplastic model
skos:prefLabel
Simulations of a NATM tunnel in a stiff clay using hypoplastic model Simulations of a NATM tunnel in a stiff clay using hypoplastic model
skos:notation
RIV/00216208:11310/10:10081100!RIV11-GA0-11310___
n3:aktivita
n10:Z n10:S n10:P
n3:aktivity
P(GA205/08/0732), S, Z(MSM0021620855)
n3:dodaniDat
n13:2011
n3:domaciTvurceVysledku
n4:2814161 n4:6661025
n3:druhVysledku
n20:D
n3:duvernostUdaju
n11:S
n3:entitaPredkladatele
n15:predkladatel
n3:idSjednocenehoVysledku
287494
n3:idVysledku
RIV/00216208:11310/10:10081100
n3:jazykVysledku
n19:eng
n3:klicovaSlova
hypoplastic model; stiff clay; NATM tunnel
n3:klicoveSlovo
n9:NATM%20tunnel n9:hypoplastic%20model n9:stiff%20clay
n3:kontrolniKodProRIV
[97AF4917C748]
n3:mistoKonaniAkce
Brno
n3:mistoVydani
Brno
n3:nazevZdroje
Geotechnical Engineers 20
n3:obor
n16:JM
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:projekt
n22:GA205%2F08%2F0732
n3:rokUplatneniVysledku
n13:2010
n3:tvurceVysledku
Svoboda, Tomáš Mašín, David
n3:typAkce
n17:EUR
n3:zahajeniAkce
2010-05-30+02:00
n3:zamer
n12:MSM0021620855
s:numberOfPages
6
n8:hasPublisher
Akademické nakladatelství CERM
n21:isbn
978-80-7204-686-7
n18:organizacniJednotka
11310