陜西黃土溝壑區(qū)開采沉陷規(guī)律研究.pdf

1、西安科技大學碩士學位論文陜西黃土溝壑區(qū)開采沉陷規(guī)律研究姓名：原濤申請學位級別：碩士專業(yè)：大地測量學與測量工程指導教師：湯伏全2011Subject:ResearchonMiningSubsidenceLawsinShaanxiLoessGullyRegionSpecialty:GeodesySurveyEngineeringName:YuanTao(Signature)Instruct:TangFuquan(Signature)ABST

2、RACTIntheloessgullycoalminingareaofShaanxiasthetopographyiscomplexthethicknessofloesslayerisgreatthegrounddefmationhasspecialpropertiesbyundergroundmining.Thoughresearchesonminingsubsidencelawshavesignificantvaluefthesaf

3、ecoalmininginwesternminingareas.BasedonthesurfacesubsidenceobserveddataofWeibeiminingareatheminingsubsidencelawsparticularityisrevealedthroughsimilarmaterialmodelexperimentFlacnumericalsimulation.Thispapermainlystudiesth

4、eminingsubsidencelawsinthesoillayersthefeaturesaboutthesurfaceminingslipinloessgullyregion.Themainachievementsofthispaperareshownasfollows:(1)Surfacemovementdefmationinloessminingareahasthemainacteristicsoffastdevelopmen

5、tfaststabilityshtactiveperiod.Thethicknessofloesslayeristhemostimptantfactinthelawsofsurfacedynamicmovementhascertainrelevancewithsurfacemovementparameters.Thelateralslippingofslopebymininginloessgullyregionistheimptantf

6、eatureofthesurfacemovementdefmationinWeibeiminingarea.(2)Intheminingareasofthickloesslayerthinbedrocklayerthesubsidencedefmationofloesslayerwillkeepsynchronousmovementwiththebedrocksubsidence.Comparedwiththebedrocklayers

7、miningimpactingrateinloesslayerisobviouslyfastthantherateinbedrocklayersubsidencefactislargerthanthefactinbedrocklayersubsidenceattenuationverticalseparationhavethegrowthdegreetobelowsurfacemovementappearsasymmetricabove