简介：有隧道的长隧道挖掘无聊的机器(TBM)是一个复杂、随机的过程。在不同隧道节根据特定的地质的条件被调整被无常和需要容易影响，它使安排的构造和管理困难。基于岩石团分类，这份报纸估计穿入率。用率，TBM无聊的系统的一个周期的网络模拟(气旋)模型被建立，并且在不同地质的条件下面的进展率是坚定的。然后，工程安排上的不同切割器头戳的影响，根据以前的经验在合理范围被选择，被分析。而且，弄脏系统的模拟模型被造相当决定湿粪火车和栏杆交叉的数字，关于湿粪装载并且材料搬运的效率。基于在TBM无聊的系统和弄脏的系统之间的相互作用和相互关系，为全部通道过程的联合气旋模型被建立。然后合理的构造时间表，工作资源的利用率，和工程结束的概率通过模型编程被获得。最后，工程应用显示出介绍方法的可行性。

简介：Underforcedventilation,thedustdiffusionofundergroundpowerhouseconstructionisinvestigatedusinga3DhighReynoldsnumberk-εmodel.Theinterfacialmomentumtransfersandthewallroughnessinthewallfunctionareconsidered.VentilationinthethirdlayerofundergroundpowerhouseofXiangjiabahydropowerstationisusedasacase.Thegeometricstructurehasadecisiveeffectontheairflowdistribution.Itisconcludedthatthedustconcentrationdecreasesgraduallywiththeincreaseoftheventilationtime.However,iso-concentrationcurveshavethesametendencyafter1800s.Thedustconcentrationmeetstheventilationanddust-preventionhealthstandardafter2300s.ThepredictionbythepresentmodelisconfirmedbytheexperimentalmeasurementbyNakayama.

简介：Themethodologyofvisualsimulationforatunnelengineeringconstructionscheduleispresented.Visualizationofsimulationmodel,calculationandresultofconstructionschedulesimulationisrealized,andtheconstructionsimulationandtheresourceoptimizationoftunnelengineeringaremade.Ariskanalysisandadecision-makingmethodoftunnelengineeringconstructionschedulebasedonvisualsimulationarepresented.Furthermore,usingScurvetheoryandschedulemanagementmethod,thereal-timemanagementandcontrolmethodoftunnelengineeringconstructionbasedonvisualsimulationispresented.Theapplicationtothetunnelengineeringconstructionscheduleanalysisandmanagementshowsthefeasibilityandeffectivenessofthemethodpresentedinthispaper.

简介：有基础能由underpressure/positive压力技术渗透并且移居的桶的站台由外面/在里面抽水引起了桶。然而，桶基础的构造过程不能清楚地由于海环境的特殊性质被观察并且有效地控制了。由使用Multigen创造者的一个先进模拟开发工具，为有桶基础的平台的视觉构造模拟程序被开发基于Vega站台的第二等的开发技术在每个看法角度与相互作用控制和观察安装虚拟现实系统。应用程序结果证明方法由与四个桶基础为站台模仿整个构造过程可行、有效。

简介：Thefollowingarticlepublishedonlineat10July2017,DOI:10.1007/s12209-017-0075-9,hasbeenretractedbyagreementbetweentheauthorsandthejournal'seditors.Theretractionisduetoduplicatepublication,fig.1,2,3,4,6,7,12,14,15,table1,2,3,4,5,6inthepaperhadalreadybeenpublishedinSteelandCompositeStructures,Vol21,no1.Theonlineversionofthisarticlecontainsthefulltextoftheretractedarticleaselectronicsupplementarymaterial.

简介：Applyingstiffnessmigrationmethod,a3Dfiniteelementmechanicalmodelisestablishedtosimulatetheexcavationandadvanceprocesses.Byusing3Dnonlinearfiniteelementmethod,thetunnelboringmachine(TBM)excavationprocessisdynamicallysimulatedtoanalyzethestressandstrainfieldstatusofsurroundingrockandsegment.Themaximumtensilestressofsegmentringcausedbytunnelconstructionmainlyliesinarchbottomandpresentszonaldistribution.Thestressincreasesslightlyandlimitedlyinthecourseofexcavation.Themaximumandminimumdisplacementsofsegment,manifestingaszonaldistribution,distributeinarchbottomandvaultrespectively.ThedisplacementsslightlyincreasewiththeadvanceofTBMandgraduallytendtostability.