无缝线路毕业设计.docx

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无缝线路毕业设计.docx

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无缝线路毕业设计.docx

无缝线路毕业设计

篇一：

无缝线路课程设计

　　课程名称：

《铁道工程》

　　设计题目：

无缝线路设计院系：

土木工程系专业：

铁道工程班级：

学号：

姓名：

　　指导教师：

　　西南交通大学峨眉校区

　　20XX年6月3日

　　课程设计任务书

　　专业铁道工程姓名学号20开题日期：

20XX年5月6日完成日期：

20XX年6月3日

　　一、设计的目的

　　通过本次设计，让学生初步掌握无缝线路设计的设计步骤、方法及具体的计算过程。

培养从事无缝线路方面的设计能力

　　二、设计的内容

　　按照教学班名单，选择自己的设计数据，完成各自要求的无缝线路计算内容。

　　1、锁定轨温2、伸缩区长度3、预留轨缝4、道床及路基面强度检算三、设计要求：

　　条件的基本要求。

　　三、指导教师评语

　　四、成绩:

　　指导教师签章）

　　年月日

　　一、设计原始资料..............................................................................................1

（一）轨道条件..........................................................................................1

（二）运营条件..........................................................................................1二、确定正线轨道类型......................................................................................1三、强度计算......................................................................................................1

（一）轨道条件..........................................................................................1

　　1．计算k值........................................................................................12．

　　计算?

....................................................................................2

　　3．计算静弯矩M0.............................................................................24．计算动弯矩Md.............................................................................25．

　　计算动弯应力?

jd,?

gd..................................................................2

　　6．钢轨强度检算................................................................................3

（二）混凝土枕强度检算..........................................................................3

　　1．计算k值........................................................................................32．

　　计算?

....................................................................................3

　　3．计算枕上动压力Rd......................................................................44．轨枕弯矩计算................................................................................4（三）道床顶面强度检算..........................................................................5（四）路基顶面强度检算..........................................................................5四、无缝线路结构计算参数..............................................................................6

（一）无缝线路结构计算参数..................................................................6

（二）无缝线路稳定性条件计算..............................................................6

　　1．试算曲线地段l值.........................................................................62．求PN、[P].....................................................................................73．试算直线地段l值.........................................................................8（三）无缝线路类型：

..............................................................................91．曲线地段........................................................................................92．直线地段........................................................................................9

　　五、设计锁定轨温..............................................................................................9

　　1．曲线地段........................................................................................92．直线地段......................................................................................10

　　六、伸缩区长度l的计算.................................................................................10

　　1．曲线地段......................................................................................102．直线地段......................................................................................10

　　七、施工预留轨缝............................................................................................11

（二）缓冲轨间预留轨缝........................................................................11

　　1．曲线地段......................................................................................112．直线地段......................................................................................12（三）长钢轨端部接头............................................................................12

　　1．曲线地段......................................................................................122．直线地段......................................................................................13（四）缓冲轨间接头预留轨缝................................................................13

　　1．曲线地段......................................................................................132．直线地段......................................................................................13（五）长轨轨端接头预留轨缝................................................................13

　　1．曲线地段......................................................................................132．直线地段......................................................................................13（六）计算结果汇总................................................................................13

　　无缝线路设计

　　一、设计原始资料

（一）轨道条件

　　铺设地点：

洛阳

　　轨道类型：

P60?

U74

　　设计区段最小半径：

1200m

（二）运营条件机车类型：

ND5车辆类型：

C62

　　二、确定正线轨道类型无缝线路

　　三、强度计算

（一）轨道条件

　　ND5机车前后有两个转向架，每个转向架为三个轴，前后转向架最近轴距为8.2m。

设计两个机车挂一个车厢，共16个轮轴。

　　1．计算k值

　　S-2型钢筋混凝土枕：

1840根∕km钢轨支座刚度D：

检算钢轨42500N/mm

　　1000000

543.5mm，因此：

轨枕间距a?

　　1840

　　D42500u?

78.2MPa

　　a543.5

篇二：

线路大修、铁路

　　线路大修与铁路无缝线路设计

　　TheDesignofTrackRenewalandCWR

　　届土木工程学院专业学号学生姓名指导教师

　　完成日期20XX年月日

　　摘要

　　无缝线路是铁路现代化标志之一，它具有行车平稳，旅客舒适，同时机车车辆和轨道的维修费用低，使用寿命长等优点。

随着线路客货运量和行车速度的不断提高，列车轴重的增加，无缝线路已成为高速、重载铁道的必选轨道结构，也是我国铁路线路的主要发展方向。

线路经过长期运营，线路平纵断面会发生变化。

因此，要对现有的平纵断面进行勘测，并根据勘测资料，对线路平纵断面进行改善设计。

　　本设计利用AutoCAD及Excel，对线路大修地段进行了平面、纵断面改善设计，并绘制了的线路大修纵断面改善设计图；通过对轨道结构类型选择、轨道强度及稳定性检算，进而对路基上无缝线路进行设计；通过计算桥上无缝线路钢轨伸缩附加力和挠曲附加力，设计了一座中跨钢桥上的无缝线路，并绘制了无缝线路长轨节布置图。

最后对线路大修工作作了专题研究。

　　关键词：

线路大修无缝线路轨道强度稳定性

　　Abstract

　　CWRisonehallmarkoftherailwaymodernization,ithassomeadvantagessuchassmoothrunning,xxfortableandlengthofservicelife.Withtheincreasingofdrivingspeed,passengercapacityandcargocarryingcapacity,andincreasingofaxialload,CWRhasbeenafirstlychosen-tractconstructionofhigh-speedandheavy-loadtrack,sointerregionalCWRhasbeentrendofrailtrackdevelopmentinChina.Lineafterlong-termoperation,lineprofilewillchange.Therefore,theexistingprofilehavebeeninvestigated,underinvestigation,thelineprofileistoimprove.

　　Thisprojectimprovesthetrack’splanandprofiledesignoftrackrenewalontherailwaywiththehelpofAutoCADandExcel,moreover,itdrawstheplanoftherailway’sprofileimproveddesign;bychoosingthetrack’sstyle;checkingthetrack’sstrengthandstability,thendesignstheCWRontheroadbed,bycalculatingexpansionforcesandflexibilityforcesintherailsonthebridge,designingtheCWRonamediumspansteelbridge,anditdrawstheplanoflongsectionoftracklayoutofCWR.Finallytheworkoftrackrenewaldoneaspecialstudy.

　　Keywords:

trackrenewalCWRtrackstrengthstability

　　第1章绪论·······················································································································11.1线路大修···················································································································11.1.1概述····················································································································11.1.2设计内容············································································································11.2铁路无缝线路···········································································································21.2.1概述····················································································································21.2.2路基上无缝线路································································································31.2.3桥上无缝线路····································································································3第2章线路大修平面设计·······························································································42.1概述···························································································································42.2既有曲线渐伸线长度计算·······················································································62.3设计曲线渐伸线长度计算·······················································································72.4拨距计算·················································································································10第3章线路大修纵断面设计·························································································173.1纵断面设计的特点及原则·····················································································173.1.1设计特点··········································································································173.1.2设计原则··········································································································173.2纵断面设计技术条件·····························································································173.3纵断面设计方法·····································································································183.3.1纵断面设计步骤······························································································183.3.2设计纵断面······································································································193.4原始资料·····

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