About: Optimisation of parameters for simulating a NATM tunnel in stiff clays based on a 3D model of exploratory adit

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The paper presents comparison of 2D and 3D analyses of an exploratory adit of a NATM tunnel in stiff clays using two constitutive models (hypoplastic model for clays and Mohr-Coulomb model). The stress-release factor ? of 2D simulation has been optimised to ensure that the 2D and 3D analyses give the same displecement field. The value of the ? factor is, however, not unique to the given tunnel geometry, among other it dependends on the constitutive model and on the value of K0. The constitutive model parameters were subsequently optimised using monitoring data from the adit. Parameters of the hypoplastic model did not change substantially during the optimisation process, this model can therefore be used for predictions based on parameters calibrated solely on laboratory experimental data. The Mohr-Coulomb model gives correct predictions only for unrealistic model parameters and low K0 values. The paper presents comparison of 2D and 3D analyses of an exploratory adit of a NATM tunnel in stiff clays using two constitutive models (hypoplastic model for clays and Mohr-Coulomb model). The stress-release factor ? of 2D simulation has been optimised to ensure that the 2D and 3D analyses give the same displecement field. The value of the ? factor is, however, not unique to the given tunnel geometry, among other it dependends on the constitutive model and on the value of K0. The constitutive model parameters were subsequently optimised using monitoring data from the adit. Parameters of the hypoplastic model did not change substantially during the optimisation process, this model can therefore be used for predictions based on parameters calibrated solely on laboratory experimental data. The Mohr-Coulomb model gives correct predictions only for unrealistic model parameters and low K0 values. (en)
Title	Optimisation of parameters for simulating a NATM tunnel in stiff clays based on a 3D model of exploratory adit Optimisation of parameters for simulating a NATM tunnel in stiff clays based on a 3D model of exploratory adit (en)
skos:prefLabel	Optimisation of parameters for simulating a NATM tunnel in stiff clays based on a 3D model of exploratory adit Optimisation of parameters for simulating a NATM tunnel in stiff clays based on a 3D model of exploratory adit (en)
skos:notation	RIV/00216208:11310/09:10001120!RIV10-GA0-11310___
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(GA205/08/0732), S, Z(MSM0021620855)
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Svoboda, Tomáš Mašín, David
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	331988
http://linked.open...ai/riv/idVysledku	RIV/00216208:11310/09:10001120
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Optimisation; NATM tunnel; stiff clays (en)
http://linked.open.../riv/klicoveSlovo	Optimisation NATM tunnel stiff clays
http://linked.open...ontrolniKodProRIV	[2FFD6324D726]
http://linked.open...v/mistoKonaniAkce	Bochum
http://linked.open...i/riv/mistoVydani	Bochum
http://linked.open...i/riv/nazevZdroje	International Conference on Computational Methods in Tunnelling EURO:TUN 2009
http://linked.open...in/vavai/riv/obor	DB
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	The development and evaluation of numerical methods for prediction of the behaviour of tunnels in fine-grained soils
http://linked.open...UplatneniVysledku	2009
http://linked.open...iv/tvurceVysledku	Mašín, David Svoboda, Tomáš
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2009-09-09 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Material flow mechanisms in the upper spheres of the Earth
number of pages	8 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Ruhr University Bochum
https://schema.org/isbn	978-3-931681-93-7
http://localhost/t...ganizacniJednotka	11310
is http://linked.open...avai/riv/vysledek of	Optimisation of parameters for simulating a NATM tunnel in stiff clays based on a 3D model of exploratory adit Optimisation of parameters for simulating a NATM tunnel in stiff clays based on a 3D model of exploratory adit Optimisation of parameters for simulating a NATM tunnel in stiff clays based on a 3D model of exploratory adit Optimisation of parameters for simulating a NATM tunnel in stiff clays based on a 3D model of exploratory adit

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