第17集初始條件詳解

|（A/C）Section17：Detailedsolutionofinitial?：都 Flac3D 總介Crustal初始條件的內(nèi)涵和外Crustalfield初始條件的內(nèi)涵和外延（第十七集fieldverticalvertical水平/水平/垂horizontalzonezoneinitialize-stressesratiozoneinitialize-stressesratioF1F2：分別表示σxx與σyy的比 zoneinitializestress-xx-5e6stress-yy-1e7stress-zz-zonezoneinitializestress-xx-5e6stress-yy-1e7stress-zz-zoneinitializestress-xx-5e6zoneinitializestress-yy-1e7zoneinitializestress-zz-5e6初始應(yīng)力和邊界應(yīng)力處于平衡狀

modelzonecreatebricksize666zonefaceskinzonecmodelassignzonepropertybulk5e9shearzoneinitializestressxx=-5e6yy=-1e7zz=-zonefaceapplystress-xx=-5e6rangegroup'East'or'West'zonefaceapplystress-yy=-1e7rangegroup'North'or'South'zonefaceapplystress-zz=-2e7rangegroup'Top'or'Bottom'modelzonecreatebricksize666zonefaceskinzonecmodelassignzonepropertybulk5e9shearzoneinitializestressxx=-5e6yy=-1e7zz=-zonefaceapplyvelocity-x=0rangegroup'East'or'West'zonefaceapplyvelocity-y=0rangegroup'North'or'South'zonefaceapplyvelocity-z=0rangegroup'Top'or'Bottom'modelzonecreatebricksize101010modelzonecreatebricksize101010point0(0,0,0)point1(20,0,0)point2(0,20,0)point3(0,0,25)zonefaceskinzonecmodelassignzonepropertybulk5e9shearzoneinitializedensity1600rangeposition-z0zoneinitializedensity2000rangeposition-z10zoneinitializedensity2200rangeposition-z15zonefaceapplyvelocity-normal0rangegroup'East'or'West'zonefaceapplyvelocity-normal0rangegroup'North'or'South'zonefaceapplyvelocity-normal0rangegroup'Bottom'zonefaceapplystress-normal-1e6rangegroup'Top'modelgravity10zoneinitialize-stressesratio0.250.5overburden-model modelzonecreateradial-cylindersize384modelzonecreateradial-cylindersize3845fillpoint1(10,0,0)point2(0,10,0)point3(0,0,10)zonefaceskinzonecmodelzonepropertyshear3e8bulk5e8densityzonefaceapplyvelocity-normal0rangegroup'East'or'West'zonefaceapplyvelocity-normal0rangegroup'North'or'South'zonefaceapplyvelocity-normal0rangegroup'Bottom'modelgravitymodelsolveTip：網(wǎng)格Tip：網(wǎng)格的類型、密度、分布特點(diǎn)等影響計(jì)算過程與結(jié)非均勻表面的初始應(yīng)力狀 modelzonecreatebricksize303010point0(0,0,0)point1(580,0,0)point2(0,680,0)point3geometryimportzonegeneratefrom-topographydirection(0,0,1)geometry-set‘17test’segmentszonefacezonecmodelassignzonepropertybulk3e8shear2e8densityzonefaceapplyvelocity-normal0rangegroup'East'or'West'zonefaceapplyvelocity-normal0rangegroup'North'or'South'zonefaceapplyvelocity-normal0rangegroup'Bottom'modelgravityzoneinitialize-stressesratio0.5modelsolveelastic非均勻表面的初始應(yīng)力狀zonegeneratefrom-topographydirection(0,0,1)geometry-set‘17test’segments非均勻表面的初始應(yīng)力狀 +置位設(shè)置ratio與彈性模型平一旦水平應(yīng)力達(dá)到垂直應(yīng)力0.75設(shè)置elastic模型，不允許塑性流更改本構(gòu)模型達(dá)到平model;Createzonecreatebricksize555zonefaceskinzonegroup'Switch'rangeposition(0,0,0);Constitutivemodelsandpropertieszonecmodelassignelasticzonepropertyshear2e8bulk3e8density;Boundaryzonefaceapplyvelocity-normal0rangegroup'Bottom'modelgravity10modelzonecmodelassignmohr-coulom