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Infrared Thermography for Geomechanical Model Test


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Infrared Thermography for Geomechanical Model Test
  • 书号：9787030447777
    作者：
  • 外文书名：
  • 装帧：平装
    开本：16
  • 页数：286
    字数：260
    语种：en
  • 出版社：
    出版时间：2015-12-07
  • 所属分类：
  • 定价： ￥128.00元
    售价： ￥101.12元
  • 图书介质:
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The book starts, in Chapter 1, with an overview of the current status of geomechanical model tests and infrared detection, followed by an introduction to some theoretical aspects of infrared physics and algorithms used in the infrared image processing (Chapter 2). Geomechanical model construction is presented in Chapter 3. In Chapters 4, 5, 6, 7 and 8, application of infrared thermography in the geomechanical model tests on tunnel excavations and roadway stability assessments in differently inclined rock strata are presented respectively with a detailed description of the experimental methods, testing procedures, imaging processing algorithms and findings obtained from characterization of the thermal sequences.
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目录

  • Contents
    Preface
    ChapterlOverview.I
    l.IBackground.I
    1.2()verviewofgeomechanicsmodeltests3
    1.3()verviewofinfrareddetection4
    References6
    Chapter2Theoreticalaspectsoftheinfraredll
    2.ITheinfraredll
    2.2Infraredspectralband13
    2.3Radiometryfundamentals18
    2.3.IRadiantenergy19
    2.3.2Radiantpowerandflux19
    2.3.3Geometricalspreadingofabeam19
    2.3.4Radiance20
    2.3.5Irradiance22
    2.3.6Radiantexitance22
    2.3.7Radiantintensityofasourceinagivendirection23
    2.3.8Bouguer'slaw23
    2.3.9Radiationscattering24
    2.4Blackbodyradiation25
    2.4.IConceptofblackbody25
    2.4.2Planck'slaw.26
    2.4.3Wien'slaw29
    2.4.4Stefan-Boltzmannlaw30
    2.4.5Exitanceofablackbodyinagivenspectralband30
    2.4.6Calculationofexitanceofblackbody32
    2.4.7Thermalradiationcontrast35
    2.5Radiationofrealbodies36
    2.5.IDifferenttypesofradiator36
    2.5.2Emissivityofamaterial38
    2.5.3Stefan-Boltzmann'slawforgreybody43
    2.5.4Dielectricmaterials44
    2.5.5Electricallyconductingmaterials47
    References48
    Chapter3Geomechanicalmodeltest50
    3.ILiteraturereviewonphysicalmodeltest50
    3.2Similaritytheoryanddimensionalanalysis53
    3.2.ISimilarityprinciples53
    3.2.2Selectionofsimilaritymaterialsandratios56
    3.3Fieldcase(prototype)58
    3.3.ISitegeology.58
    3.3.2Insiturockproperties60
    3.4Geomechanicalmodelconstruction61
    3.4.ITestingmachine61
    3.4.2Modeldimension62
    3.4.3Physico-mechanicalparametersofthemodel64
    3.4.4Rockstructuresimulation65
    3.4.5Geomechanicalmodel68
    3.5Infrareddetection69
    3.5.IThermographyandimagingprocedures69
    3.5.2Temperaturecalibration72
    3.5.3Imageprocessing73
    References74
    Chapter4Excavationin600inclinedstrata78
    4.IIntroduction78
    4.2Experiment79
    4.2.IRockmodelmaterial79
    4.2.2Geomechanicalmodelconstruction.80
    4.2.3Excavationplan82
    4.2.4Excavationmethod83
    4.3Infrareddetection84
    4.3.IInfraredthermography84
    4.3.2Thermal-mechanicalcoupling85
    4.4Imageprocessing87
    4.7Discussion112
    4.7.IExcavationindifferentlyinclinedrocksoverfull-faceexcavation112
    4.7.2Excavationindifferentlyinclinedrocksoverthestagedexcavation115
    4.7.3Summary119
    References120
    Chapter5Excavationin450strata123
    5.IIntroduction123
    5.2Shortreviewofinfrareddetection124
    5.3Experiment127
    5.3.IModelconstruction127
    5.3.2Testingprocedure129
    5.4Infrareddetection131
    5.4.IInfraredthermography131
    5.4.2Energyreleaseindex.132
    5.4.3Imageprocessingalgorithm133
    5.4.4Principlesforimageanalysis133
    5.4.5Fourieranalysis133
    5.5ResultsandDiscussions135
    5.5.IOverallthermalresponse135
    5.5.2Characterizationofthefull-faceexcavation.138
    5.5.3Comparisonbetweentheexcavationinooand450inclinedstrata143
    5.5.4Characterizationofthestagedexcavation145
    5.5.5Summary152
    References153
    Chapter6Excavationinhorizontalstrata156
    6.IIntroduction156
    6.2Experiment158
    6.2.IGeomechanicalmodelconstruction158
    6.2.2Testingprocedure159
    6.3Infrareddetection161
    6.3.IInfraredthermography161
    6.3.2Imageprocessing162
    6.3.3Fouriertransformofthethermalimage163
    6.3.4Enhancementofthethermalimage164
    6.3.5Spectralanalysis166
    6.4Resultsanddiscussions167
    6.4.IOverallthermalresponse167
    6.4.2Characterizationofthefull-faceexcavation.169
    6.4.3Characterizationofthestagedexcavation175
    6.4.4Summary181
    References183
    Chapter70verloadedtunnelin450inclinedrocks185
    7.IIntroduction185
    7.2Experimental187
    7.2.IGeomechanicalmodel.187
    7.2.2Loadingpath188
    7.3Infrareddetection189
    7.3.IInfraredthermographyandimagingprocedures189
    7.3.2Temperaturecalibration191
    7.3.3Imageprocessing192
    7.4Fourieranalysis193
    7.4.IStresswavepropagation193
    7.4.2Fouriertransform196
    7.4.3Periodicitvintimedomain197
    7.4.4Periodicityinspatialdomain199
    7.4.5Physicalmeaningofthespatialfrequency199
    7.4.6Methodforspectralanalysis200
    7.5Loadingpathandoverallrockresponse203
    7.5.IEnergyreleaseindex.203
    7.5.2Loadingrate205
    7.5.3Characterizationoftheloadingrateeffect205
    7.6Resultsanddiscussions207
    7.6.ITermsandapproach.207
    7.6.2SpectracharacterizationofloadingstateA.207
    7.6.3Characterizationofloadingcaseswithslowloadingrate212
    7.6.4Characterizationofloadingcaseswithfastloadingrate218
    7.6.5Discussions222
    7.6.6Summary225
    References226
    Chapter80verloadedtunnelinhorizontalstrata231
    8.IIntroduction231
    8.2Experimental232
    8.2.IGeologicalmodel232
    8.2.2Loadingscheme233
    8.2.3Infrareddetection234
    8.3Problemstatement236
    8.4Imagedenoisingfilters237
    8.4.ITypesofthenoise237
    8.4.2Removingenvironmentalnoise237
    8.4.3Suppressionoftheimpulsivenoise238
    8.4.4Removingtheadditive-periodicalnoise238
    8.5Morphologicalenhancementfilter239
    8.5.IShortreview239
    8.5.2Fundamentals239
    8.5.3Filterdevelopment240
    8.5.4Multi-scaleSE242
    8.6Imageprocessing243
    8.6.IAlgorithmandimageanalysisrules243
    8.6.2Assessmentofimagingprocessingeffect244
    8.6.3Rockresponseathydrostaticstressstate245
    8.6.4Rockresponseatunbalancedstressstate249
    8.7CharacterizationofnewIRimages.253
    8.7.IMissionandrule253
    8.7.2LoadingcaseBl255
    8.7.3LoadingcaseB2256
    8.7.4LoadingcaseB3257
    8.7.5I_oadingcaseB4259
    8.7.6LoadingcaseB5261
    8.7.7LoadingcaseB6262
    8.7.8Discussion264
    8.7.9Summary266
    References266
    Appendix:Thecoleredthermalimagesinchapter48 269
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