【正文】 EL 來進行計算，以達到更快、更準、更有效率的目的；其他內(nèi)容也做到有的放矢。 關(guān)鍵詞： 大修；換軌；平面設計；縱斷 面設計 蘭州交通大學 博文學院 畢業(yè)設計 (論文 ) Abstract The graduation design as the last link of teaching plan, is the basic theory, use orbit knowledge and skills, project design, the prehensive training is prehensive quality and engineering practice ability, is the important embodiment of each student must pass a railroad engineers must training, helps to jobs. The basic task of the line equipment repair is: according to the transportation needs and lines of law, have cycle, planful part of loss, updated and repair recovery and enhance rail bear ability, prolong the service life of equipment equipment. Normally, line overhaul period depends on the development situation, based on prehensive replacement for major rail, in particular said. Lines in overhaul main job content: to the design of the correction to improve line longitudinal peace. overall change new rail and accessories, trak controller and illegal armor wheel and rail, insulation joint replacement continuous line. failure sleeper and buckles, plemental sleeper, repair of configuration injury sleeper. thoroughly clear sieve solid, added ballastless track, improve section. , should also group overhaul and replacement of new nechanics new rail. strengthen equipment installation orbit. Because the content involves many, so use spreadsheet EXCEL to pute, faster and more accurate in order to achieve the goal, more efficient, Other contents and try to use puter colleg and use software. All these content to China39。 Replacement track。 Longitudinal design 蘭州交通大學 博文學院 畢業(yè)設計 (論文 ) I 目 錄 第一章 緒論 .......................................................................................................................... 1 第一節(jié) 線路大修內(nèi)容 .................................................................................................. 1 一、線路大修概述 ................................................................................................ 1 二、線路大修主要內(nèi)容 ........................................................................................ 1 第二節(jié) 設計線路中主要采用的技術(shù)指標 .................................................................. 2 一、線路技術(shù)標準 ................................................................................................ 2 二、軌道標準 ........................................................................................................ 2 第二章 大修勘測及既有線路資料的調(diào)查 .......................................................................... 4 第一節(jié) 既有線大修勘測的基本原理和施測方法 ...................................................... 4 一、既有線大修勘測的基本原理 ........................................................................ 4 二、施測方法 ........................................................................................................ 5 第二節(jié) 線路大修勘測及既有線路資料的調(diào)查 .......................................................... 6 一、寶成線概況 .................................................................................................... 6 二、寶成線勘測 .................................................................................................... 6 第三章 平面大修設計 ........................................................................................................ 10 第一節(jié) 偏角法計算曲線撥距 .................................................................................... 10 一、漸伸線原理 .................................................................................................. 10 二、用漸伸線原理計算既有曲線的撥距 .......................................................... 13 第二 節(jié) 繩正法計算曲線撥距 .................................................................................... 16 一、繩正法原 理 .................................................................................................. 16 二、用繩正法原理計算既有曲線的撥距 .......................................................... 19 第四章 線路大修縱斷面設計 ............................................................................................ 25 第一節(jié) 縱斷面設計的特點及原則 ............................................................................ 25 一、設計特點 ...................................................................................................... 25 二、設計原則 ...................................................................................................... 25 第二節(jié) 縱斷面設計的基本原理 ................................................................................ 26 一、線路坡度 ...................................................................................................... 26 二、坡段長度 ...................................................................................................... 27 三、坡段連接 ...................................................................................................... 28 蘭州交通大學 博文學院 畢業(yè)設計 (論文 ) II 第三節(jié) 縱斷面設計的方法和步驟 ............................................................................ 31 一、縱斷面設計圖 .............................................................................................. 31 二、計算軌面標高 .............................................................................................. 33 三、設計坡度與設計軌面線 .............................................................................. 33 四、計算起道高度 .............................................................................................. 34 五、計算設計道床厚度 ...................................................................................... 35 六、復核 .............................................................................................................. 35 結(jié) 論 .............................................................................................................................. 37 致 謝 .............................................................................................................................. 38 參考文獻 .............................................................................................................................. 39 附錄Ⅰ 偏角法撥距計算表 ............................