冻土的耐久性分析-论文.pdf

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1、第5卷第3期黑龙江大学工程学报Vo1．5．No．32014年9月JournalofEngineeringofHeilongjiangUniversitySep．，2014DOI：10．13524／j．2095-008x．2014．03．066AboutthedurabilityoffrozensoilAlexandrKonovalov(TyumenStateOilandGasUniversity，Tyumen625003，Russia)Abstract：Itisshownthepresenceoftwomechanisms(brittleandplastic

2、)ofthedestruction0ffozensoil，connectedwithphasetransitionsofsoilmoisture．Bothmechanismsofdestructionarefoundformulaofdurabilityandstrengthofthesoilwithconstantandvariableloadsandtemperatures．Itisthefirsttimetoimposeaquantitativeexpressionofthermobaricconditions，determiningthepreval

3、enceofoneofthesemechanismsoffracture．Amethodisproposedfortherapiddeterminationofstrengthpropertiesoffrozensoil，duetothegradualincreaseintestingprocesstemperaturesandloads．Keywords：durability；strength；permafrost；ice；destruction；deformationCLCnumber：P642．14Documentcode：AArticleID：209

4、5一O08X(2014)03—0184—05冻土的耐久性分析AlexandrKonovalov(秋明国立石油天然气大学，秋明625003，俄罗斯)摘要：显示了冻土的脆性和塑性破坏两种机制存在时的土壤水分的转换阶段，发现两种破坏机制，提出一个包括常荷载、可变荷载和温度诸因素土壤的耐久性和强度公式。首次利用一个定量来表达温压条件，确定两种破坏机制下裂缝的发生率。基于温度和负载递次增加试验，提出了一个冻土的强度特性快速测定方法。关键词：耐久性；力量；冻土；冰；破坏；变形heatofsublimationQ．Differenttypesoflinkspatti—0I

5、ntroductionelesoffrozensoilaredefinedanddifferentmechanisms0fitsdestructionaredifined．CommunicationbetweentheparticlesofthefrozenP1asticdestructioniSthedeformationoffrozenground，dependsontheproximityoftheirtemperaturetbody(itsconnectionsparticles)，withagradualtransi—(c(=)tothemelti

6、ngtemperaturetl，whichcanbeplas．tioninflowingstate．Thisstateisfixedonachievingtic(“melting”)neartlandfragile(“sublimation”)theapproximateequalityJl—】0，083⋯0，12awayfromt=t1㈦．(hereJml-relativedeformationofthethawingoffrozenTheenergyofplastictiesequaltothespecificsoil，Jl-relativelimito

7、fdeformation)．Sublimationcor—heatofmelting(crystallization)Qfragile—specificrespondstoacompleteruptureofatomicbond，educa—Receiveddate：2014——03—-20Biography：AlexandrKonovalov，Russia，researchingfield：Permafrost，E—mail：konov7@rambler．第3期AlexandrKonovalov：Aboutthedurabilityoffrozensoil

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