#################################################### # # --- Command log file --- # PLAXIS 2D 2023.1 # Tutorial - 18 # Freeze pipes in tunnel construction # Note: Use the PLAXIS Commands runner to execute this # #################################################### _setproperties "Title" "Freeze pipes in tunnel construction" "Company" "Bentley Systems Inc" "Comments" "" "UnitForce" "kN" "UnitLength" "m" "UnitTime" "day" "UnitTemperature" "K" "UnitEnergy" "kJ" "UnitPower" "kW" "WaterWeight" 10 "ReferenceTemperature" 283 "LiquidSpecificHeatCapacity" 4181.3 "LiquidThermalConductivity" 0.0006 "LiquidLatentHeat" 334000 "LiquidThermalExpansion" 0.00021 "LiquidTemperature" 283 "IceSpecificHeatCapacity" 2108 "IceThermalConductivity" 0.00222 "IceThermalExpansion" 5E-5 "VapourSpecificHeatCapacity" 1930 "VapourThermalConductivity" 2.5E-5 "VapourSpecificGasConstant" 461.5 "UseTemperatureDepWaterPropsTable" False "ModelType" "Plane strain" "ElementType" "15-Noded" _initializerectangular SoilContour -45 -30 45 0 _borehole 0 _soillayer 0 _setsoillayerlevel Borehole_1 1 -30 _soilmat "Identification" "Sand" "SoilModel" "Mohr-Coulomb" "Colour" 15262369 "gammaUnsat" 18 "gammaSat" 18 "Eref" 100000 "nu" 0.3 "phi" 37 "GroundwaterSoilClassStandard" "Medium" "GwUseDefaults" False "PermHorizontalPrimary" 1 "PermVertical" 1 "ThCs" 860 "ThLambdaS" 0.004 "ThermalExpansionType" "Isotropic" "ThAlphaSV" 1.5e-05 "PhaseChange" True "UnfrozenWaterSaturationMethod" "User-defined" "UnfrozenWaterSaturationTable" "[273, 1, 272, 0.99, 271.6, 0.96, 271.4, 0.9, 271.3, 0.81, 271, 0.38, 270.8, 0.15, 270.6, 0.06, 270.2, 0.02, 269.5, 0]" _setmaterial Soillayer_1 Sand _gotostructures _line 0 -12.05 0 -11.95 _arrayp (Line_1) 0 -15 360 12 True _tfbc (Line_1 Line_2 Line_3 Line_4 Line_5 Line_6 Line_7 Line_8 Line_9 Line_10 Line_11 Line_12) _set (Line_1.ThermalFlowBC.Behaviour Line_2.ThermalFlowBC.Behaviour Line_3.ThermalFlowBC.Behaviour Line_4.ThermalFlowBC.Behaviour Line_5.ThermalFlowBC.Behaviour Line_6.ThermalFlowBC.Behaviour Line_7.ThermalFlowBC.Behaviour Line_8.ThermalFlowBC.Behaviour Line_9.ThermalFlowBC.Behaviour Line_10.ThermalFlowBC.Behaviour Line_11.ThermalFlowBC.Behaviour Line_12.ThermalFlowBC.Behaviour) "Convection" _set (Line_1.ThermalFlowBC.Tfluid Line_2.ThermalFlowBC.Tfluid Line_3.ThermalFlowBC.Tfluid Line_4.ThermalFlowBC.Tfluid Line_5.ThermalFlowBC.Tfluid Line_6.ThermalFlowBC.Tfluid Line_7.ThermalFlowBC.Tfluid Line_8.ThermalFlowBC.Tfluid Line_9.ThermalFlowBC.Tfluid Line_10.ThermalFlowBC.Tfluid Line_11.ThermalFlowBC.Tfluid Line_12.ThermalFlowBC.Tfluid) 250 _set (Line_1.ThermalFlowBC.TransferCoefficient Line_2.ThermalFlowBC.TransferCoefficient Line_3.ThermalFlowBC.TransferCoefficient Line_4.ThermalFlowBC.TransferCoefficient Line_5.ThermalFlowBC.TransferCoefficient Line_6.ThermalFlowBC.TransferCoefficient Line_7.ThermalFlowBC.TransferCoefficient Line_8.ThermalFlowBC.TransferCoefficient Line_9.ThermalFlowBC.TransferCoefficient Line_10.ThermalFlowBC.TransferCoefficient Line_11.ThermalFlowBC.TransferCoefficient Line_12.ThermalFlowBC.TransferCoefficient) 1 _line (-45 0) (45 0) _tfbc (Line_13) _gwfbc (Line_13) _line Point_26 (45 -30) _line Point_27 (-45 -30) _line Point_28 Point_25 _tfbc (Line_14 Line_15 Line_16) _gwfbc (Line_14 Line_15 Line_16) _set (Line_13.ThermalFlowBC.Behaviour Line_14.ThermalFlowBC.Behaviour Line_15.ThermalFlowBC.Behaviour Line_16.ThermalFlowBC.Behaviour) "Temperature" _set (Line_13.ThermalFlowBC.Tref Line_14.ThermalFlowBC.Tref Line_15.ThermalFlowBC.Tref Line_16.ThermalFlowBC.Tref) 283 _set (Line_13.GWFlowBC.Behaviour Line_15.GWFlowBC.Behaviour) "Closed" _set Line_16.GWFlowBC.Behaviour "Inflow" _set Line_16.GWFlowBC.Qref 0.1 _tunnel 0 -18 _set Tunnel_1.CrossSection.ShapeType "Circular" _set (Tunnel_1.CrossSection.Segments[0].ArcProperties.Radius Tunnel_1.CrossSection.Segments[0].ArcProperties.Radius) 3 _generatetunnel Tunnel_1 _mergeequivalents Geometry _gotomesh _mesh 0.06 _gotostages _set InitialPhase.DeformCalcType "Flow only" _set InitialPhase.Flow.ThermalCalcType "Earth gradient" _activate ThermalFlow InitialPhase _set ThermalFlow.T_ref InitialPhase 283 _set ThermalFlow.EarthGradient InitialPhase 0 _phase InitialPhase _set Model.CurrentPhase Phase_1 _set Phase_1.Identification "Freezing" _set Phase_1.PorePresCalcType "Transient groundwater flow" _set Phase_1.Flow.ThermalCalcType "Transient thermal flow" _set Phase_1.TimeInterval 180 _set Phase_1.maxstepsstored 100 _activate GroundwaterFlowBcs Phase_1 _activate ThermalFlowBcs Phase_1 _selectmeshpoints /output addcurvepoint "Node" Soil_1_2 (0 -15) /output update