季节性冻土地区京哈线山海关至四平段铁路路基冻害分析与-研究

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1、AbstractBasedonofpredecessor，Frostofseasonalregioninrailwaybedisanalysisedandstudied，ThehighwayreconstructionprojectoftheBeijing--Harbinline，whichfromShanHaiGuangtoSiPingistakedasengineeringbackground．Itthroughtheformationoftheseasonalfrozensoilfreezinginjuryfactorsf．orpaPer，carrysoutthestudy

2、fromthetemperaturefieldtodeterminethefreezingdepthandfreezingdepthoffactors，whichaccordingtotherelationshipbetweenlandswfacetemperatureandthesoiltemperaturebasedontheintroductionoftheconceptoflandsurfacetemperature．Second，theintroductionofseveralwatertransfertheoryexplaintheoccurrenceofwateri

3、nsoil，whichdescribestheprocessofmoisturemigrationint托ezingeffectontheclassificationofseasonalfreezing，theformationoffactors．pertormancecharacteristics，determinethefreezingoftheremediationmeasures．Finally，withtherailwayembankmentdetectionradarexperimentreport，onthethicknessofballastandroadbedc

4、onstructionthickness，subgradedefectsdetectionofthebasebedmorphologyanalysis，subgradesurfacedeformationanalysis，settlementanalysis，ballastpollutionanalysis，ballastandbeddingwithwateranalysis，basedbedloadcapacityandfillitsproperties．Researchresultsonthissubjecttodeterminethetypeoffreezinginjury

5、dlsease，determinethemethodoffreezingdamageremediation，integratedcircuitstoenhancequality，increasetrainspeed，theseasonalfrozensoilareaon．siteremediationanddesignofareference．Keywords：subgrade；seasonalfrost；temperaturefield；moisturemigration；carradar西南交通大学硕士研究生学位论文第1ll页目录第一章绪论．．．．．．．．．．．．．⋯．．．．

6、．．．．．⋯．．．⋯⋯．．．．．．．．．．．．．．．11．1课题的研究意义⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．11．2冻土工程在国内外的研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．21．2．1冻土分布概况⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．21．2．2冻土工程研究进展⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯31．2．3冻土力学研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯41．2．4冻土路基温度场研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯61．2．5冻土水分迁移理论的研究现状⋯⋯⋯⋯⋯⋯⋯⋯．．71．2．6冻土温度场、水分场及应力场耦合效应研究现状⋯⋯⋯．71．3研究方法、技术路线、及其可行性研究⋯⋯⋯⋯⋯⋯⋯⋯81．3．1研究方法⋯⋯⋯⋯⋯⋯⋯

7、⋯⋯⋯⋯⋯⋯⋯．．81．3．2技术路线⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．81．3．3试验方案及可行性⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯9第二章季节性冻土地区冻胀和融化特征．．。．．．．．⋯．．．．．．．．．．．．。．。．．102．1土体的冻结和融化温度⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．102．1．1地表温度⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．1O2．1．2地表温度和土体中温度场的关系⋯⋯⋯⋯⋯⋯⋯．．1l2．1．3土的季节性冻结与融化计算方法⋯⋯⋯⋯⋯⋯⋯．．1l2．2STEPHEN冻深近似解析解⋯⋯⋯⋯