山區(qū)高速公路緩坡設(shè)計(jì)參數(shù)研究.pdf

1、長(zhǎng)安大學(xué)碩士學(xué)位論文山區(qū)高速公路緩坡設(shè)計(jì)參數(shù)研究姓名：曹杰申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：道路與鐵道工程指導(dǎo)教師：潘兵宏20110614第一章緒論AbstractWiththerapiddevelopmentofexpressway，therearesomecontinuousslopesectionsbecauseofrestrictednaturalconditions。Inthemountainoushighway，forthecompl

2、exterraindesigneroftenusetheabruptslopedesignalternatelywiththesteepslopeinlineschemelaidandlongitudinalslopedesigninordertoovercomedifferencelevelandcontroltheprojectscaleThisbasicallyconsideringthetruckmovingonuphillge

3、ntleslpoeCanrecoveryspeed，Narrowspeeddifferencebetweendifferentmodels，Reducetrafficaccidents，Improvetrafficcapacity；Ontheotherhand，ConsideringthedownhillgentleslpoeSettingsinfavourofcontrolthespeedlimitReducethenumberofv

4、ehicleusemainbrake，ImprovethedownhillsectionsvehiclesafetyButourcurrenthighwaytechnicalstandardandroaddesignspecificationshavenodetailedprovisionsaboutgentleslpoeSettings，NomaturestudyconcludedInthemountainoushighwaygent

5、leslopedesign，Designershavenoruletoabide，whichleadtosetparametersslopeusenotreasonable，couldnotreachthepurposeofslopeSettings，cannotcompletelymeettheactualtrafficcapacityand“Vingsafetyrequirements，SO，Researchthemountaino

6、ushighwaygentleslopedesignparameters，isverynecessarytoimprovetrafficcapacityandsafety，AlsourgentneedtoaddresstheproblemBasedonalargecollectionofrelevantinformationandliterature，werestudiedonthemountainhighwaygentlesloped

7、esignparameters，byanalyzinglongitudinalcontinuousuphillsectiononthedifferentvehiclespeedandcapacityoftheroad，Andtestorethetruck’SuphillspeedasthestartingpointUsingthedynamicpropertiesofleadingmodelanalysisandcalculationm

8、ethod，Putforwardtheuphillgentleslpoesections’gradeandlengthdesignparametervalues；Ontheanalysisofthecontinuousdownhillsectionsinlightofthecharacteristicsofbrakingperformanceandoperationonthebasisofspeed，Aimforreducethedow

9、nhillspeed，AccordingtotheleadingCarbrakingperformancecalculation，putforwarddownhillgentleslopesections’gradeandlengthdesignparameterBasedontesttherunningspeedofgentleslopesectionsdataanalysis，takingintoaccounttheparkingr

10、ampandacoolingpoolsettingrequirements，respectivelyadvancethemountainoushighwayslopesectionsofuphillanddownhillgentleslopesections’gradeandlengthdesignindicatorssuggestvalues，andputforwardtheunimryembankmentslopeandslopel

11、engthdesignparametervaluesResearchconclusiontoourcountrymountainoushighwaylongitudinalslopedesignhascertaindirectivesignificance，to”standard”revisionhasimportantreferencevalueKeywords：mountainousexpresswaycontinuouslongi