厦门海底隧道初期支护变异对支护体系安全性影响研究

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1、西南交通大学硕士学位论文厦门海底隧道初期支护变异对支护体系安全性影响研究姓名：李海军申请学位级别：硕士专业：桥梁与隧道工程指导教师：王明年20090301西南交通大学硕士研究生学位论文第1I页AbstractAbnormaldeformationofpreliminaryliningismorecommon，crackingandwaterleakageismoreseriousinXia’mensubseatunnelduringconstruction．Basedonfieldmonitoringmeasurementda

2、ta，researchinformationofcracks，waterseepage，andmaterialvariation．Thebond—slipandbonddegradationmodelbetweenshaped—steelandconcreteisestablished；thepaperanalyzestheimpactoftheshaped—steelcorrosionandthepreliminaryliningcrackingonsupportingsystemsecurity,andofferssome

3、beneficialconclusionsandsuggestionstothesubseatunnelmaintenance．Thispapermainlyconsistsofthreeparts：investigationandresearchofvariationofpreliminarylining；establishingthebond-slipandbonddegradationmodelbetweenshaped．steelandconcrete；analyzesinfluenceofpreliminarylin

4、ingvariationstudyonsupportingsystemsecurity．FocusingonXia’mensubseatunnel，thepaperanalyzesfieldmonitoringmeasurementdataandsurveydata，sumuptypes，laws，characteristics，reasonsofeachvariationduringtheconstruction；analyzesandsummariescharacteristics，types，lawsofthelastv

5、ariationofthematerial．Onthebasisofexistingtheresearchresults，thepaperestablishesthebond-slipandbonddegradationmodelsuitableforengineeringapplicationbetweenshaped—steelandconcrete，Usingthemodel，withorwithoutwaterpressureconditions，analyzestheimpactoftheshaped—steelco

6、rrosionontheirownbeatingcapacity,aswellasevaluatesthesecurityinfluenceofpreliminaryliningconcreteandsecondarylining；analyzestheimpactoftheloaddistributiononsupportsystemsecurity,aswellasthelawsofloaddistributionofsupportsysteminXia’mensubseatunnel；analyzestheinfluen

7、ceoftheshaped-steelcorrosiononsupportsystemsecuritywhenconsideringtheloaddistribution；andaanalyzestheimpactofthepreliminaryliningcrackingonsupportingsystemsecuritywithwaterpressure．KeyWords：Subseatunnel；Variationofpreliminarylining；Corrosion；Crack；Supportsystem；Secu

8、rity西南交通大学曲南父迥大字学位论文版权使用授权书本学位论文作者完全了解学校有关保留、使用学位论文的规定，同意学校保留并向国家有关部门或机构送交论文的复印件和电子版，允许论文被查阅和借阅。本人授权西南交通大学可以将本论文的全部或部分内容编入有关数据库进行检索，可以采用影印