Concrete foundations for pipes and turbines FE modelling of ...
Concrete foundations for pipes and turbines FE modelling of ...
Concrete foundations for pipes and turbines FE modelling of ...
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<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong><strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometriesin ZSoilRafal OBRZUDGeoMod Ing. SA, Lausannerobrzud@geomod.ch
ContentPumped-storage power plant in the Valais Alps: Nant de Drance (CH)Client: Alpiq, CFF-Energie et FMVGeneral contractor: AF-ColencoGeneral project <strong>of</strong> cavernes: BG Ingénieurs-Conseils SAA new penstock in hydarualic power plant in Monthey (CH)Client: CIMO (CH)General project: CETP (CH)<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
Nant de Drance: Pumped-storage power plant in the Valais AlpsGeneva lakeValaisMartignyThe EmossonLakeThe Vieux EmossonLakeFacts:From 2017:6x150MW pump <strong>turbines</strong>Machine cavern:Length=184mWidth=32mHeight =52m<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
Project Nant de DranceGeneral viewPowerplant1865mEmossonLake1930mVieuxEmossonLake2225mChâtelard1123m<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
Project Nant de Drance3D view <strong>of</strong> the construction siteThe Vieux Emosson Lake2225mThe Emosson Lake1930mPower Plant CavernsBottom 1865mFacts:Two 1.7km power tunnels<strong>and</strong> vertical wells <strong>of</strong> 2470m<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
2D & 3D modeling <strong>of</strong> cavern excavation projectpresented during ZSoil Day 2011Constitutivemodel <strong>and</strong>parametricstudiesApplication <strong>of</strong>mesh tyingtechnique<strong>FE</strong> discretization<strong>of</strong> the excavationstages<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
3D modeling <strong>for</strong> a concrete turbine supportGoals <strong>and</strong> requests:Evaluation <strong>of</strong> stresses <strong>for</strong>rein<strong>for</strong>cement dimensioningIncluding effects <strong>of</strong>:• concrete shrinkage• temperature changes• different combination <strong>of</strong> static,hydraulic <strong>and</strong> pseudo-static loads<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
3D modeling: Preparatory phaseGeneration 3D model with a CAD s<strong>of</strong>tware<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
3D modeling: Generation <strong>of</strong> macromodel in separated filesIf necessary, use <strong>of</strong>NODAL LINKS option inorder to ensure continuity<strong>of</strong> displacements <strong>and</strong>temperatureAssemblingmacromodelcomponents<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
Final mesh <strong>for</strong> analysis <strong>of</strong> turbine supportB8-EAS15 (3D)Continuum <strong>for</strong> structureselements were used<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
Filling concreteFoundation <strong>for</strong> rotorTurbinefoundationSuction pipe<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>Foundation <strong>for</strong> statorHydraulic spiral <strong>and</strong>filling concrete
Stator foundation <strong>and</strong> pseudo-static loadsstator weightSimulations included:<strong>for</strong>ces due to statoraccelerationT1V2R2V1R1• Effect <strong>of</strong> intrinsic shrinkage <strong>and</strong>concrete cooling effect• 10 different load combinationsStatic (machine weight) <strong>and</strong>pseudo-static loads (functioning <strong>of</strong>machines) applied to:• Rotor foundation• Stator foundationHydraulic loads applied to:• Turbine spiral• Suction pipe<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
Steel spiral <strong>and</strong> hydraulic <strong>for</strong>cesSteel spiralSteel ringsArmoringHydraulic pressureinside the spiralPrestressed steel bolts<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
Principal stress increment due to hydraulic pressureResults averaging diasbledspeeds up model analysis<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
Principal stresses developed due to shrinkage <strong>of</strong> concreteFilling concrete aroundthe suction pipe<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
Shear stress due to pseudo-static loadingStator foundationEach element was analysed in terms <strong>of</strong>:• Principal stresses• Shear stresses<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
3D modeling <strong>of</strong> a foundation <strong>for</strong> a new penstockGoals:Evaluation <strong>of</strong> stresses <strong>for</strong>rein<strong>for</strong>cement dimensioningEvaluation <strong>of</strong> de<strong>for</strong>mations <strong>of</strong> the newstructure under full hydraulic loading<strong>and</strong> temperature variations<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
A new penstock in hydarualic power plant in MontheyGeneral viewExistingpowerstationNewlyconstractedpenstock<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
A new penstock in hydarualic power plant in MontheyProjectedview<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
A new penstock in hydarualic power plant in MontheyLongitudinal section<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
3D modeling: importing *.dxf filefinding the most complicated point in the model<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
3D modeling: Generation subdomainsStarting from generatingsubdomains around themost complicated point <strong>of</strong>the model is highlyrecommended<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
3D modeling: Generating subdomainsMacromodel exp<strong>and</strong>ingwith simultanous virtualmeshing<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
3D modeling: Generating subdomains<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
Hydraulic pipeØ 1.5m3D modelGeneral viewa = 20°<strong>Concrete</strong> foundation <strong>for</strong> the new penstockPF VII « Fixed Point »E = 20 GPaExisting powerplant sideRiver« La Vièze»sideSluicewayh = 20 cmRetaining wall(old channel)h = 30 cm<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
Longitudinal sectionBifurcationJunctionFixed wall <strong>of</strong>existing structureStiffeners50x15mmStiffeners100x15mm<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
View from the topJunctionOutflow 3Outflow 1Outflow 2« Small » channelSluiceway<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
2176Steel: E= 200GPa,n = 0.3Pipe - diameter[mm]Thickness[mm]1 – 1500/1600 202 – 1500/1800 203 – 1800/1350 204 – 1800/1200 20765 – 1350/1200 1456 – 1200 1437 – 1200 148 – 1200 1410 – 1200/1000 1411 – 1000 1413 rein<strong>for</strong>cement 701341011Annexe 1.7 <strong>Concrete</strong> Hypothèses: <strong>foundations</strong> Maillage <strong>for</strong> 3D <strong>pipes</strong> du point <strong>and</strong> fixe <strong>turbines</strong> PF VII – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilGéométrie Rafal de PF Obrzud, VII et du GeoMod voisinage SA fournis par le bureau CETP: «CETP_34_CIMO_PFVII-CENTRALE-CANAL FUITE.dwg»31.08.2012, Lausanne, Switzerl<strong>and</strong>
<strong>Concrete</strong> /Soilf=20°, c= 0PFVII / Existing structuref=40°, c=0Layout <strong>of</strong> interfacesPipe /<strong>Concrete</strong>f=40°, c=0Soil /<strong>Concrete</strong>f=20°, c= 0Annexe 1.8 <strong>Concrete</strong> Hypothèses: <strong>foundations</strong> Maillage <strong>for</strong> 3D <strong>pipes</strong> du point <strong>and</strong> fixe <strong>turbines</strong> PF VII – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilGéométrie Rafal du système Obrzud, des GeoMod interfaces SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
Hydraulic <strong>pipes</strong>pecific weightHydraulic loads applied in the penstockStiffenersPressure due toclosure <strong>of</strong> Valve 1Pressure due toclosure <strong>of</strong> valve 2Pressure due toclosure <strong>of</strong> valve 3 et 4OutletDe<strong>for</strong>med pipeunder hydraulicpressure(amplified de<strong>for</strong>mation 2000x)ChamberHydraulic pressure<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
Modeling stiffeners: Role <strong>of</strong> stiffenersto stiffen penstock in sensitive zones (bifurcations, changes <strong>of</strong> curvature)to prevent from relative movements between pipe <strong>and</strong> foundationStiffeners modeledwith BEAM elemsLINK INTERFACE NODEoptionRelative movementsprevented<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
Section B-BSection C-CSection D-D7•••1Principal stresses s 1<strong>for</strong> combination <strong>of</strong> loads: all valves open<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
Principal stresses s 1<strong>for</strong> combination <strong>of</strong> loads: all valves open<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
Principal stresses s 1<strong>for</strong> combination <strong>of</strong> loads:all valves open <strong>and</strong> DT = -10°C32• • •2621• • •25<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
Principal stresses s 1<strong>for</strong> combination <strong>of</strong> loads: all valves openSection F-FIIJJ<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
Absolute displacments <strong>and</strong> de<strong>for</strong>mations <strong>of</strong>foundation <strong>for</strong> combination <strong>of</strong> loads:all valves openPossible gapEchelle:de 0 à max positif<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
Thank you <strong>for</strong> your attention …GeoMod ® 2012<strong>Concrete</strong> <strong>foundations</strong> <strong>for</strong> <strong>pipes</strong> <strong>and</strong> <strong>turbines</strong> – <strong>FE</strong> <strong>modelling</strong> <strong>of</strong> complex 3D geometries in ZSoilRafal Obrzud, GeoMod SA31.08.2012, Lausanne, Switzerl<strong>and</strong>
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