降雨條件下公路路基滲流特性及邊坡穩(wěn)定性分析.pdf

1、東南大學(xué)碩士學(xué)位論文降雨條件下公路路基滲流特性及邊坡穩(wěn)定性分析姓名：曾田申請學(xué)位級別：碩士專業(yè)：道路與鐵道工程指導(dǎo)教師：張曉春20080113AbstractLandslideiscloselyrelatedtainfallandtheraininfillzationisthemostimportantonethatresultsincollapseofsubgradeorslidingfailureofslopeItisofgreat

2、significancefortheprecautionoflandslidetomakeadeepstudyofthelandslidelawunderrainfallandestablishaquantitativemodelforanalysisThevariationofwa【crdistributionanddeformationinsubgradeandtheslopestabilityduetaininfiltration

3、werestudiedinthispaperResearcheffortshavebeencarriedonintheaspectsasfollows：1ThestudyofinfilWationtheoryofrainwaterandcomputingmethodBasedonthesaturatedunsaturatedseepagetheorythebasicdifferentialequationofralnfmlseepage

4、hasbeendeducedAcalculatingmodelforanalysisofsaturatedunsanwatedseepagefieldwiththeboundaryconditionofraininfiltrationalsohasbeendeveloped2NumericalsimulationofseepagefieldinsubgradeconsideringrainwaterinfiltrationNumeric

5、alsimulationonseepagefieldinsubgredeafterrainfallWasstudiedThemaininfluencefactorsofseepagefieldincludingtotalvolume，intensityprecipitationdurationandformofrainfallWgTCtakenintoaccountPermeabilitycoefficientpermeabilitya

6、nisotropyandwatertablewgrealsoconsideredThemovingruleofmoistureinsubgradeundern墑cloadsWascomparedwithwhichwithouttheeffectofdynamicloads3Fluid—smlcturecouplinganalysisundertheconditionofrainfallAninvestigationinthestress

7、distributionanddeformationstatesofthesubgrddeintheactionofwaterwascarriedonbymeansofcouplinganalysisbet、V啪seepagefieldandstressfieldwhenoneoftherainfallfactorssuchasrainformandintensityorsoilpropertiessuchaspermeabilityc

8、oefficientandpermeabilityaulsotropyvaries4ThestabilityanalysisofslopeafterrainwaterinfiltrationRegardingrainfallinfiltrationasanimportantfactorinsoilslopestabilitythechangelawofsafetyfactorWasstudiedunderdifferentconditi

9、onsAquantitativemodelWasestablishedtofindhowcountingparameterstoaffecttheslopestabilitysuchasconditionsofrainfallsoilpropertiesandwatertableInthis弘Ipe‘theinfluenceofmainfactotsontheseepagefieldinsoilsandslopestabilityaft

10、errainfallhasbeendiscussedwhichisveryhelpfulforappropriatedesignofsubgrade，effectiveprotectionofsoilslopeandforecastoflandslideKeyworde：saturatedunsaturatedseepagetheoryrainwaterinfiltrationseepagefieldstre$Sfieldnumeric