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1、石灰改善土灰剂量衰减曲线探索与思考（Explorationandthinkingoflimetoimprovesoilashdoseattenuationcurve）LimeimprovedsoillimeattenuationandexplorationthinkingcurveAndyruina(Jiangxitrafficengineeringsupervisioncompany,Nanchang330008)Abstract:throughthegreydosemeasurementinAnhuiProvinceMaWuHighwaySubgradeof
2、limeimprovedsoilintheconstructionoftheexistingvalueofthedisputecausedbythecalciumandmagnesiumcontentdeterminationandanalysisofindoortestchangeswithtime,thedoseoflimewithtimepresentsnewconceptoflinearattenuationrelationship,inordertomaketheconstructiontimeofsoilimprovedbylimeandcontro
3、l.Toguidetheashdosageoflimesoilconstructionqualifiedjudgement.Keywords:roadengineering;analysisanddeterminationofashdosage;ashdosagewithtimelinearattenuationofnewconcepts;Determinationofashdosage0IntroductionMaWuhighwayisthemainchannelofAnhuiProvincealongtheYangtzeRiverCitytocityJian
4、gsu,Shanghaiandotherdevelopedregions,isthecommunicationchannelinthesoutheastcoastofChinaandthewest.Thewidthofpavementdesign28mtwo-way4lanedesignspeedof120km/h,locatedinplainandhillyarea,thesoftsoilfoundation,thesurroundingsoilismoreexpansivesoilwithhighliquidlimit,thewatercontentin18
5、%-25%,cannotbeuseddirectlyasroadbedfillerinroadbed,zone95shouldbeusedonlyafterimprovement,accordingtothedesignrequirementsofashdosagewere5%,5%,7%,and10%,accordingtothe4layerconstruction,eachlayerthicknessis20cm.1limesoilconstructionrequirementsimprove1.1rawmaterialsSoil:soilconstruct
6、ionusuallyhascertainrequirementsforthesoilplasticityindex(15-20),shouldbeinbetween,becausethesoilplasticityindexisbigger,thestrengthofmixtureisalsohigher,themixtureiseasilycompacted,butthecrushedsoilandsandysoilgroup,nopulverizationbutdifficultcompaction.Thisprojectisthemoistureconte
7、ntofhighliquidlimitsoilislarge,suitableforsoilconstruction.Lime:localrichlime,mostcanreachaboveIIIlevel,tomeettherequirementsofconstructionoflimesoil,limesieveafterfulldigestion5mm.1.2constructiontechnologyRoadmixmethodofconstructiondustusedinthisproject,themainconstructionprocessand
8、construction
