About: 3D Modeling of an NATM Tunnel in High K0 Clay Using Two Different Constitutive Models

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	This paper studies the accuracy of the three-dimensional ?nite-element predictions of a displacement ?eld induced by tunneling using new Austrian tunneling method NATM in stiff clays with high K0 conditions. The studies are applied to the Heathrow express trial tunnel. Two different constitutive models are used to represent London Clay, namely a hypoplastic model for clays and the modi?ed Cam-clay MCC model. Good quality laboratory data are used for parameter calibration and accurate ?eld measurements are used to initialize K0 and void ratio. The hypoplastic model gives better predictions than the MCC model with satisfactory estimate for the displacement magnitude and slightly overestimated width of the surface settlement trough. Parametric studies demonstrate the in?uence of variation of the predicted soil behavior in the very-small-strain to large-strain range and the in?uence of the time dependency of the shotcrete lining behavior. This paper studies the accuracy of the three-dimensional ?nite-element predictions of a displacement ?eld induced by tunneling using new Austrian tunneling method NATM in stiff clays with high K0 conditions. The studies are applied to the Heathrow express trial tunnel. Two different constitutive models are used to represent London Clay, namely a hypoplastic model for clays and the modi?ed Cam-clay MCC model. Good quality laboratory data are used for parameter calibration and accurate ?eld measurements are used to initialize K0 and void ratio. The hypoplastic model gives better predictions than the MCC model with satisfactory estimate for the displacement magnitude and slightly overestimated width of the surface settlement trough. Parametric studies demonstrate the in?uence of variation of the predicted soil behavior in the very-small-strain to large-strain range and the in?uence of the time dependency of the shotcrete lining behavior. (en)
Title	3D Modeling of an NATM Tunnel in High K0 Clay Using Two Different Constitutive Models 3D Modeling of an NATM Tunnel in High K0 Clay Using Two Different Constitutive Models (en)
skos:prefLabel	3D Modeling of an NATM Tunnel in High K0 Clay Using Two Different Constitutive Models 3D Modeling of an NATM Tunnel in High K0 Clay Using Two Different Constitutive Models (en)
skos:notation	RIV/00216208:11310/09:00014330!RIV10-GA0-11310___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA205/07/0574), P(GA205/08/0732), Z(MSM0021620855)
http://linked.open...iv/cisloPeriodika	9
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Mašín, David
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
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	353902
http://linked.open...ai/riv/idVysledku	RIV/00216208:11310/09:00014330
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Nonlinear analysis; Tunneling; Clays; Constitutive models; Three-dimensional analysis (en)
http://linked.open.../riv/klicoveSlovo	Constitutive models Clays Nonlinear analysis Tunneling Three-dimensional analysis
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[F4358A49737E]
http://linked.open...i/riv/nazevZdroje	JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
http://linked.open...in/vavai/riv/obor	JM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (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 Modeling and prospecting of cavities in soils - synthesis of gravimetric and geotechnical research
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	135
http://linked.open...iv/tvurceVysledku	Mašín, David
http://linked.open...ain/vavai/riv/wos	000269061400015
http://linked.open...n/vavai/riv/zamer	Material flow mechanisms in the upper spheres of the Earth
issn	1090-0241
number of pages	10 (xsd:int)
http://localhost/t...ganizacniJednotka	11310
is http://linked.open...avai/riv/vysledek of	3D Modeling of an NATM Tunnel in High K0 Clay Using Two Different Constitutive Models 3D Modeling of an NATM Tunnel in High K0 Clay Using Two Different Constitutive Models 3D Modeling of an NATM Tunnel in High K0 Clay Using Two Different Constitutive Models 3D Modeling of an NATM Tunnel in High K0 Clay Using Two Different Constitutive Models

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