空間變異性分析方法及春在巖石力學(xué)參數(shù)估值中的應(yīng)用研究.pdf

1、東北大學(xué)博士學(xué)位論文空間變異性分析方法及春在巖石力學(xué)參數(shù)估值中的應(yīng)用研究姓名：胡小榮申請(qǐng)學(xué)位級(jí)別：博士專業(yè)：采礦工程指導(dǎo)教師：唐春安2000.6.1學(xué)位論文z空間變異性分析方法及其在巖石力學(xué)參致估值中的應(yīng)用研究ABSTRACTTheheterogeneityexistedintheengineeringrockformationsmeansthattheirrockmechanicalparametersnotonlyhavethepr

2、opertyofspatialvariations，butalsomeansthatthecharacteristicsofthespatialvariationsaredependentuponengineeringrockformationsthemselvesSotheclassicalstatisticsandthestationaryweakGaussianrandomfieldtheoryarenotappropriatel

3、yusedtodothespatialvariationanalysisandthevalueestimationoftherockmechanicalparametersInthispapernotonlytheworksmentionedabovearedonewiththegeostatisticsandtheneuralnetworkmethods，butalsothemechanicalparametersoftheeleme

4、ntsinfiniteelementmethodandthediscretevaluesassociatedwiththestochasticfiniteelementmethodareanalysedindetailcombinedwiththecommonusedrandomfielddiscretionIntheprocessesofanalyses，somenewviewsandmethodsareproposedsimulta

5、neouslybesideswiththereferencesontheoriesandmethodsexitedTheyare：(1)ThenewdescriptionisgiventotheheterogeneityoftherockformationsbsaedontheviewpointofspatialvariationThisdescriptionmethodnotonlyenablestheheterogeneityoft

6、herockhasaclearanddefinitephyisicalmeanings，butalsohasthebenefitsofusefullness(2)Intherespectofthespatialvariationanalysisofrockmechanicalparameters，thefeasibilityofapplyingthegeostatisticsisdiscussedandthelinearprogramm

7、inginwhichtheweightsareconsideredwiththeexperimentalvariogramsunderthedifferentlagsisproposedintheregressionofthetheoreticalv撕ogram(3)Inthevalueestimationoftherockmechanicalparameterswithkrigings，thelinearprogrammingmode

8、lscalculatingtheweightsofestimationinwhichthenonnegativeconstrainsaretakellintoconsiderationareproposedtoovercomethemalpracticesexistedintherelatedkrigingequationsr41Inthevalueestimationoftherockmechanicalparameterswithc

9、onditionalsimulations，methodstomaketheoptimumhistogramsintheprincipleofmaximumrelatedentropyandthehistogramsmoothingwiththelinearprograngningareproposedtoenablethehistogrammadearemorerealisticandthehistogramsmoothingarem