纖維固化土抗裂抗凍耐久性試驗(yàn)研究.pdf

1、西北農(nóng)林科技大學(xué)碩士學(xué)位論文纖維固化土抗裂抗凍耐久性試驗(yàn)研究姓名：周煒申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：水利工程指導(dǎo)教師：婁宗科20080601THESTUDY0NTHECRACKINGANDANTIFREEZEPERFORⅣ㈧CEOFCURINGFIBERRED師ORCEDSOILABSTRACTSoilstabilizerisoneofnewbuildingmaterials，whichcanfeltfaceofsoilgrainsandma

2、kechemicalreactionwithaluminumsilicatemineralsforminggummaterialsBecauseitsstabilizedobjectisnaturalsoil，thismethodhavemanyadvantagessuchasusinglocalmaterials、reducingsandmasses、noenvironmentalpollutionandsavingengineeri

3、ngcosts，forithavingimportantsignificanceintechnologyandeconomy，itspotentialwillbewidelyInthispaper，aslowintensityandeasytocrack，impermeabilityantifreezepoorabilityareencounteredwiththecuresoilTrytoincorporatepolyesterfib

4、erinthereinforcedsoiltoimprovethetensilestrengthFocusingoncuringthefibercrackresistanceofthesoil，antifreezereflecttheperformanceoftheseindicatorsofthedurabilityofcuringsoilHerearesomemainarguments：(1)HECcuringagent，YS—cu

5、ringagent，MS(Milkstablizer)emulsionpolymersoiltypecuringagentshaveabetteradaptabilitytotheLoessofYangling；MScuringthehighestintensityofsoil，HECsecond，YSminimum；YScuringthesmallestsoilpermeabilitycoefficient，MSlargest，HEC

6、second；comprehensivetestofstrength，economicfactorsandsexualpenetration，MBER—curingagentmoreappropriatecuringtoYanglingloess(2)WhilethecontentofMBERsoilcuringagentis12percent，and09Kg／m’fibercontent，thecompressivestrengtha

7、ndtensilestrengthoftheloessofYanglinghavereachedthemaximum，respectively，363MPa，052MPa；MBERsoil—curingagentCanEffectivelyimprovethecompressivestrengthandtensilestrength，polyesterfiberforimprovingthesoil’Sstrengthisnotobvi

8、ousfromtheroleofsoilmixedwithcuringpolyesterfibertoacertainextent，CanimprovethecuringofthesoilTensilestrength，reducingsoilcuringthecracksofsoilandimprovethedurabilityofcuringacertainrole(3)Fromthe7d‘Stensilestrengthconto

9、urmap，wecanseethatwhenthecuringagentsintheamountof12％to14％，thefibercontentof09Kg／m’to11Kg／m’between，thetensilestrengthofthesoil7dCouldexceed04MPaAsthetensilestrengthofthesoilcrackresistanceofcuringthegreatestimpact，there

10、fore，suggestedtheoptimalamountofcuringagentfor12percent，fibercontentofO9Ke／m’(4)MBERsoilcuringagentCanimprovefreezethawcycleinthesoilattherateofmassloss，whentheamountof11％to15％，20timesitsfreezethawcycleafterthemasslossra