混合土路基壓實質(zhì)量控制的試驗研究.pdf

1、大連理工大學(xué)碩士學(xué)位論文混合土路基壓實質(zhì)量控制的試驗研究姓名：于林平申請學(xué)位級別：碩士專業(yè)：巖土工程指導(dǎo)教師：楊九宏19990601ExperimentalStudyontheCompactionControlofHeter02eneousSoilforRoadbedMajor：GeotechnicalEngineeringMasterCandidate：LinPingYuAdvisor：AssociatProfjiuhongYang[

2、Abstract]Withthedevelopmentofeconomy，highwayconstructionisbecomingmoreandmoreimportant，Recentlyhighwayqualitywaspaidlargeatten—tionbythescholarsandengineersItiswellknownthathighwayqualityisdeterminedbymanyreasons，oneofth

3、emainreasonsisthechoiceandcompactioncontrolofroadbedsoitGenerally，rockysoil，sand，siltandclaycanbeusedforroadbedsoilInfact，whicheversoilswasused，qualityproblemscouldbeledtoAsaresult，theheterogeneoussoil，whichisinthenature

4、ofhigherstrength。lowerpermeabilityandeasierconstruction，composedofcoarseandfinegrainedsoilhasbeenwidelyusedinpracticeBasedonanumberofcompactiontestsoftheheterogeneoussoll，itscompactionmechanismissubmittedbytheauthorAccor

5、dingtothismechanism，thecompactibi[ityoftheheterogeneoussoildepandsonmanyfac—tors，suchaswatercontenttcompactionefforttcoarsecontent，gradation，andSOonofwhichgradatignisbelievedtobeoneofthemajorfaetorsConsidinggradationofth

6、eheterogeneoussoil，empiricalformulasarepre—sentedtOcaculateitsmaximumdrydenisityandoptimumwatercontentFurthermore，compactioncontrolmethods0ftheheterogeneoussoilwerecomparedTheresultsclearshowthattheheterogeneoussoilcanbe

7、widelyusedanditsoptimumcoarsecontentiS20percentto70percentMoreover，compactiondegreecontrolwillstillbeanimportantmethodofcompactionqualitycontroloftheheterogeneoussoil(keyWords3heterogeneoussoilcompactiontestcompactibilit