简介：<正>征地拆迁是项目开工建设的重要前提。这项工作开展的是否顺利,直接影响工程进度、施工工期和项目管理成本。本人在项目长期从事征地拆迁管理工作,积累了一定的实践经验,下面就如何做好征地拆迁工作做一探讨。一、组建精干队伍是搞好征地拆迁的基础。征地拆迁工作是一项政策性很强、涉及各方利益、人们高

简介：Forstudyingthedynamicperformanceofsubseaumbilicalcablelayingsystemandachievingthegoalofcabletensionandlayingspeedcontrol,therigidfiniteelementmethodisusedtodiscreteandtransformthesystemintoarigid-flexiblecouplingmulti-bodysystemwhichconsistsofrigidelementsandspring-dampingelements.ThemathematicalmodelofsubseaumbilicalcablelayingsystemkinematicchainispresentedwiththesecondorderLagrangeequationinthejointcoordinatesystem,anddynamicmodelingandsimulationisperformedwithADAMS.Thedynamicanalysisisconductedassumingthefollowingthreestatuses:ideallaying,practicallayingunderwavedisturbance,andpracticallayingwithtensioncompensation.Resultsshowthatmotiondisturbancesofthelayingbudgeunderseawaves,especiallywithheavingandpitching,willcauserelativelyseriousfluctuationsincabletensionandlayingspeed.Tensioncompensation,i.e.,activebacktensiontorquecontrolcanrestrictcontinuoustensionincreasingordecreasingeffectivelyandrapidly,thusavoidingcablebreachorbuckling.

简介：2013年7月，太原铁路局科委组织鉴定委员会对湖东电力机务段和株洲祥云机电技术有限公司联合研制的“HX，型机车亏电研究及补偿装置”进行了技术鉴定。