土工材料浸水特性的試驗研究.pdf

1、長安大學(xué)碩士學(xué)位論文指導(dǎo)教師姓名奎回丞熬援申請學(xué)位級別亟學(xué)科名稱地廈：：E理論文提交日期20Q504論文答辯日期2QQ5生Q掃目學(xué)位授予單位整盎叁堂答辯委員會主席：學(xué)位論文評閱人：2005年05月撕日AbstractInrecentyearstheinfiltrationofwaterresultedsettlementinalotoffoundationsofhighway111eproblemalsopresentedinbuild

2、ingfoundationswhichcausedbuildingincliningandcrockedSoitissignificanttheoreticallyandpracticallytesearchthevariationofsoilpropertieswhilethefoundationsoaksbyundergroundwaterIntheresearchworkamountoftestsofthesoilengiueen

3、ngmaterialssuchassand—loessdifferentmixtureratioanddifierentageflyash1ime10essandloess—cementhasbeendoneOptimummoisturecontentisacquiredbycompactiontest，andthematerialsoftestaremadeinoptimummoisturecontentInsaturatedandt

4、in—saturatedconditionseachsoilsampleismadeshears訂engthtestunconfinedcompressiontestcompressiontestandcollapsibletestThetestresultsareanalyzedandgottheknowledgeasfollow：1Aftercompactionallsortsofmaterialsdon，thavecollapsi

5、ble，thesettlementoffoundationsintheconstructionsmayresultedfromsharpdeclineofIoesss訂engthbecauseofinfiltrationofwaterButthedegreeofcompactionwhichisnotenoughismaythefactorofsettlement2Sandmixedwithloesscanimprovethecompr

6、essivestrength；shearstrengthandmodulusofcompressibilityofloessAndaccordingtoexperimentalresults，theproportionofsandloessasl：9isbeRer3Fhashpossesseshigherstrength，butitsensitivetowatersoitss仃engthwaterstabilityisslowandaf

7、terinfiltrationitss扛engthdeclinequickly4皿leresultofthe1ime10esstest：Thestrengthof1：9lime—loesscomparewith2：8and3：7ishieherbutthewaterstabilizingpropertyof2：8isthebestMoreoverthe1imeloessof3：7thatusuallyusesOllengineering

8、containsmorelime，rightnesswaterscomparegreatly5nleloesscementisakindofmoreidealsolidmatedalItcanattainhigherstrengthinashorttimeMoreoverit’sstrengthandsofteningcoemcientarehigherthanothers6Theboiledflourofpolishedglutino

9、usriceforawhileandadditintoloess，whenitIsmoisturecontentattainsto14％itscompressives打engthcanattainto041MPaandthes訂engthchangessharplywitht11emoisturecontentInthistestflyashandloesscement’sshearstrengthandcompressionstren

10、gthdidn’treduceatoncewhendroDthemintowater，buttheirstrengthreducedcomparedwithwhatatthesanleageandwithoutsoakedwi血waterInthisthesisweintroducerelativesofteningcoefficientandsofteningratewhichcanreflectthematerial’ssensit

11、ivitytowaterPolished列utinousriceloessisanenvironmentalbenefitsoilengineeringmatedalsWehavedoneacertainamountofexperimentthatcanreflectthephy’sicsandmechanicsindexofpolishedglutinousriceloessinordertoofferonetoconsultfort

12、hechoiceofenviromnentalmaterialBydoingtllisexperimentswehavegainedthephyrsicsandmechanicsindexandchangeofstrengtharoundbeingsoakedwithwaterofallkindsofmatefials，theseresultscanofferwarrantyfordesigningandselectingsuitabl