HighwayengineeringchangereasonanalysisandcostoftheprojectofinfluenceAbstract:intheimplementationstagebecauseofhighwayengineeringdesignfactors,environmentalfactors,theinfluenceofvariousengineeringchangeshappenedismorecommon,combiningwithengineeringpractice,thispaperdiscussesthecausesandengineeringchangeofprojectcost.Keywords:engineeringchange,Reason,CostDuetothehighwayprojectperiod,long,longline,sobroadinconstructionofvariouscausesbytheengineeringchangeisinevitable.Engineeringchangecouldleadtoincreaseofconstructioncostortimelimitoftheownerandthecontractor,betweentheclaimwillclaimandthecostoftheproject.OwnerofchangeandthecausesofthecostAndwhentheownerchangeengineeringbiddingofconstructionconditionsofcommitment."SanTongYiPing"referredtointheprecedingparagraph,theengineeringtightfinish,delaypurposewillincreasethecontractor'ssettlementfee,butlittleimpactontotalcost,theownerorprojectquantitychangeprojects.Increasetheprojectcontentorquantity,willincreasethecost,Projectcontentorcancelorreducethenumberwillreducecost,butmayaffecttheusefunctionofengineering,becausetheownerwithagreementsfortheexistenceofincomplete,orinthecontractwhendivision,canincreasecontentofmissingthecontractcost,andtheowners'requirements,andshortendeliveryoffinishedaheadoftheoriginalcontractperiod,investmoreinconstructionunitcostofmanpowerandmaterialresources,toincrease,andimprovethedesignstandardrequirementowner,beautifulAnglefromsecurityrequirementsofengineeringstructurechangetype,elevation,baseline,location,sizeandstrength,makecostincrease,andtheownertochangeintheconstructionorganizationdesignhasapprovedtheconstructionplan,costincrease,andtheownerofthecontractwiththeownerofthematerialsorequipmentsupplyforthecategoryandquantity,causecostincreaseordecrease,andtheownerofthecontractspecifiesunreasonable,canmakethecostisincreasedThedesignofchangeandthecausesofthecostThedesignadoptsthenewstandard,newtechnology,newtechnology,toreplacetheoriginaldesignoftheproject,andputtousemorefavorableforownerreduceprojectcost,thedepthofthedesigndocuments,cannotsatisfytherelevantprovisionsoftherelevantdesignphaseofengineeringchangeandrequirements,costincreaseordecrease,andwhendesigningunitsinthepreliminarydesigntofullyconsiderthenetworkplanning,andinlocalgovernmentandrelateddepartments(e.g.,environmentalprotection,waterconservancy,electricity,gas,communication,navigation,etc.)andtherequirementsoftheproject,themainstructurechangeshapeandsizechangeetc,makethecostincrease,anddesignpersonnelerrorsoromissionscausedengineeringchange.Duetothe"twoSanShenschoolsystemtoimplementthechangethatcostisincreased,Unit,uncoordinatedcooperationbetweendesigners,orthehighwayfacilitieswiththeprincipalpartoftheprojectdesign,causesyncjobchange,makecostincrease,andthedesigndrawingnottimelydeliverytimedelay,provide,construction,makethecostcompensationshutdowncausedbyincreased.Tthecontractortochangeandcausetheinfluence.CostThecontractorisunabletoperformthecontractorcan'tcompletely,thecontractorshalltakeremedialmeasuresproposedchange,thiskindofchangeofengineeringcost,canincreasebycontractorburdenloss,thecontractorhasbeenapprovedchangeswhenbiddingofconstructionproject,thiskindofchangeofcost,butalmostnoeffectforthecontractormaysaveconstructioncost,andthecontractorforconstructionisconvenient,ortoshortentheconstructionperiod,ortoreducetheinvestmentofconstructi...