新建铁路兰渝线兰州至广元段地质灾害发育特征与工程适宜性评价

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1、西南交通大学硕士铲究生学位论文第2页·_舅__lI-_lll-l—置_童蔓皇量曼曼曼曼曼鼍曼量舅皇皇舅霉蔓曼鼍曼量量量皇篁量量量皇皇曼置曼曼曼曼曼曼量皇皇皇皇_AbstractWiththedevelopmentoftheconstructionoftherailwayandtheconstantlydepravationoftheglobalclimate，thecontinuallyeruptofthegee·hazardaffectthenormalmanagementoftheraihoadsystemse

2、riously．Nearly80％oftheexistingrailwaysinourcountryarelocatedinmountainousorhillyareas．Mountaingeologicaldisasterscausedseriousimpacttothecountry'srailwaysystembothinsocietyandineconomics．Thispaper,basedondatafromgeologicalhazardsresearchofthesectionbetweenLanz

3、houandGuangyuanaspartoftheLan．Yurailwayproject,analysesthetypeofgeologicaldisastersandthegeologicalbackgroundoftheformationofgeologicaldisasters，summarizesthedevelopmentalcharacteristicsofgeologicalhazardsalongtherailway,researchescontrollingfactorsofthegeolog

4、icalhazardsalongtheRailwayandestablishesevaluationindexesofgeologicalhazardsalongtheectionbetweenLanz．houandGuangyuanoftherailway．Finally，thepaperworksoutthedevelopmentalcharacteristicsandriskassessmentofthegeologicaldisastersalongtheLan-Yurailway．Fromthosestu

5、dies，thepaperprovidesthebasisforthepreventiontothegeologicaldisastersalongLan·Yurailway．Themainresearchworksinthisthesisareasfollows：1．Clarifytheoverviewoftheconstructionprojectandgeological，hydrogcologicalconditionsoftheassessmcntalareasuchastopography,lithol

6、ogy,geologicalstructureandect．，andanalysisinherentlinksbetweengeologicalenvironmentalconditionsandgee·hazards；2．Identifythetype，distribution，size，stabledegreeoftheexistinggeologicaldisastersoftheassessmentalarea,anddamagetheobject，thedegreeofh．azard，andanalysi

7、softhe’formationmechanismandimpactfactorsofvarioustypesofgeologicalhazards；·3．Incombination、)Irithcnginceringgeologicalconditionsandthetypeandsizeofengineering,analysisandforecasttheinteractionbetweengeologicalenvironmentandengineeringintheconstructionprocessa

8、ndafterprojectcompletionusing；Predictionandintegratedassessmentarecarriedonthelikelihoodandtheextentofvariousgeohazardswhichmaybeleadoraggravatedbytheengineeringconstructionandcons