瞬變電磁視縱向電導(dǎo)微分成像應(yīng)用研究.pdf

1、分類號(hào)P63諼專太海碩士學(xué)位論文瞬變電磁視縱向電導(dǎo)微分成像應(yīng)用研究李超導(dǎo)師姓名職稱申請(qǐng)學(xué)位級(jí)別論史提交U刺學(xué)位授予單位碩士學(xué)科專業(yè)名稱地#镕Ⅲ目情n#$2007年5Jj10門論文答辯日期2007年6月8l長安大學(xué)答辯委員臺(tái)主席lE垂選學(xué)位論文評(píng)。八壺垂i壘監(jiān)盤互AbstractTheTEM(TransientElectromagneticMethod)isakindofexplorationmethodthattakesuseofthe

2、measuringabnorrnitytoanalyzetheconductivecapacityandthepositionoftheundergroundnonhomogeneoussubstancetoresolvethegeologyproblemsHoweverusingtheapparentverticalconductanceconversionimagingtosearchforlowresistancelayerism

3、orevisuallythanthetraditionalapparentresistancemethodinthelayerearthelectricitysectionmodelItisbecausethataccordingtotheelectromagnetictheorytheundergrounduniformmediumCanbereplacedbyanelectricplane，thenitisconvenientlyt

4、oseekthechanginginductiveelectromagneticfieldwithtime‘t’inanyspacepointbymirrorimagingmethodTheelectricplaneflowupanddownatthespeedofl／／to仃ThisCanaltertheswingandphaseinrandomspacepointWithtimechanging，transientelectroma

5、gneticfieldspreadtothedeepstratumIfthereoccursamewelectriclayerthetotalverticalconductancevalueincreasesInordertoemphasizethechangeofthetotalverticalconductancewithdepth，Wehavedifferentialimagingtotheverticalconductancet

6、omakethelayercharactermoreobviouslyThisisthereasonthattheverticalconductancecurveismorevividlytodeterminetheexistenceoftheelectriclayerthantheapparentresistancecurveInthisarticle，Weintroduceamethodoftakinguseoftheapparen

7、tverticalconductancedifferentialimagingtodothequalitativeandquantitativeinterpretationatinterpretationofTEMAftertheelaborationfortheprincipleofthedifferentialimaging，thispapershowtheadvantagesofusingapparentverticalcondu

8、ctancedifferentialimagingtodothedateprocessingandinterpretationoftransientelectromagneticsoundingAttheSalTletime，inordertesolvetheproblemthatbecausethewrong麗aftertheinversion，affectingtheinterpretation’Stermitesolutionof

9、apparentverticalconductanceSfandapparentdepthHr，andthelargedifferentialofimagingofinversionandtruetargetWeusegeneticalgorithmtorequiretheoptimization麗Andstill，Wedosomeimprovementintheprogramtesolvetheoptimization麗Inorder

10、toincreasetheresolutionofelectricundersurfaces，basingontheconfirmingthemeaningofapparentverticalconductanceandits’physicalmeaning，WemayUSecubicsplineinterpolatetododataprocessing，andachievetheimagingofparameterofconducta