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ID:33112346
大小:10.81 MB
页数:101页
时间:2019-02-20
《既有线提速改造工程综合测试与评估分析》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、中南大学硕士学位论文ABSTRACT3.Highliftabsolutebedsectionballastbedparametertestresultsarenormal,thedynamicpiletestresultsareinsafetylimitrange.Intheroadbed,byusingmethodofcombiningwithdynamicpiletestwhichusetestcarpassthepresetstationrecordssubgradebeddynamicloadanddynamicdeforma
2、tionanditschangeruleandstatictestmethodwhichusethesetsettlementobservationpoint,tocarryonthelong—termsettlementdeformationobservationtoevaluatetheadaptabilityofthesubgrade,throughtheevaluationanalysisfoundthat:1Transformationlinesubgradebedinsufficiencyofbearingcapacity
3、commonly,weneedtostrengthenthemaintenanceofsubgradeorincreasetheballastbed.2Combinedwithcomprehensiveprevioustestresultsofspeed-uplinesubgrade,inallloadanddeformationcharacter,axleloadistheimportantfactorsthatinfluencethedynamicindexofroadbed,comparativelyspeaking,notas
4、wellasthespeedis.theinfluenceofthetrainandstrengthentheorbitandthemaintenanceoftheroadbedshouldbemainlyconsidedinspeed-upproject.3Thedynamicstressanddynamicdeformationvalueofvanisgreaterthanthebustestvalueandthedynamicdeformationtestvalueofreconstructionofsectionappears
5、individualpartiallargermainlyduetothereform’Stimeistooshortforballasttostable.Theresearchmentionedaboveshowsthat:throughthetest,researchandstatisticalanalysis,theevaluationprocessofcomprehensivesituationofexistinglinesspeed-upshowsitscompliancewithlinesafetyindexanddriv
6、ingconditionsornot,theevaluationestablishedonthebasisofthetestlineandsubgradeshowsrationalityandcomprehensive.KEYWORDS:Existinglinesspeed—up;modificationactiontest;roadbedreinforcement;linesmoothdegreeevaluationClassification:625IV中南大学硕士学位论文目录目录摘j12}⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯
7、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯IABSTRACT⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯III目录⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯。V第一章绪论⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..1.1.1研究背景及意义⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..1-1.2研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..2.1.3主要研究目的⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.
8、.6.1.4主要研究内容⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.一6.1.5论文结构⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..7.第二章沪昆线提速改造工程与速度目标值确定方法⋯⋯⋯⋯⋯⋯⋯⋯⋯
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