宁明膨胀土堑坡稳定分析及柔性处治技术研究

《宁明膨胀土堑坡稳定分析及柔性处治技术研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、学校代号：学号：密级：1053603131003长沙理工大学硕士学位论文宁明膨胀土堑坡稳定分析及柔性处治技术研究y975773学位申请人姓名谭遗导师姓名驶职称一．扬塑壬垫援培养单位公跬王摆堂蓝专业名称1道堕：复继道王捏论文提交日期一2QQ§生5旦论文答辩日期2QQ§生5旦答辩委员会主席ABSTRACTexpansivesoilisakindofspecialclaywithlotsoffissuringanddistinguishableswelling—shrinkagecharacteristic，itsbadengineeringcharacteri

2、sticsoftenleadstoavarietyofdiseasesofsubgrade，ofwhichthedestructionofcutslopisespeciallysevereanddifficulttocorrect．Itisalwaysanengineeringdifficultproblemthatshouldbeurgentlysolvedthathowtoaimatthecomplicatedfailuremechanism，establishreasonablecutslopanalyzingmethodandbasedonitto

3、designandcalculatethetreatmentproject，CombiningwiththedevelopmentofWesternTrafficConstructionExpansiveSoilProject，ChangshaUniversityofScienceandTechnologyprojectgrouphassuccessfullyusethetechniqueofgeotextilereinforcementtoeffectivelycorrectNing—mingexpansivesoilcutslope，butitsthe

4、oreticalresearchisrelativehystereticandthetreatmentmechanismofflexiblesupportingstructureisalsotobedemonstrated．Therefore，thisarticleregardstheexpansivesoilcutslopeof“Nanning-YouYiGuan”asobject，carryonthecutslopestabilityanalysisandtheresearchofflexibletreatmenttechnique．Firstly,b

5、asedonascertainofthesoilproperty,strengthcharacteristicandlandslidemechanism，correspondentanalyticalmethodhasbeensetup．Accordingtothesimilaritybetweentheexpandingphenomenacausedbyexpandingsoilabsorbingwaterandtheexpandingeffectcausedbyobjecttemperaturechange，thesimulationofexpansi

6、vecutslopehumiditychangefieldhasbeensuccessivelyrealizedbyusingtemperaturechangefieldtodescribethecutslopehumiditychangefieldafterrainfall，makinguseoftheheat—powercouplingfunctionoffiniteelementanalysissoftwareANSYS，andbasedonit，thestabilityofcutslopehasbeenanalyzebystrengthreduct

7、ionmethodwithFEMTheresultistallywiththepracticalsituation，theproblemthatclassicalapproachbeingdifficulttoconsiderexpansivesoilincutslopcalculationhasbeenpreferablysolved，inthesametime，analysisindicatedthattheexistingofweaklayerandweatheringdepthofsoilbodyexpandingdistortion(force)

8、causesbyhumiditychangeareimportan