【正文】 11)不設(shè)超高最小半徑 : 當(dāng)路拱≤ %時(shí)為 4000m；當(dāng)路拱＞ 2%時(shí)為 5250m。 一般要求繪制路線平面圖、縱斷面圖、路基標(biāo)準(zhǔn)橫斷面圖、橫斷面設(shè)計(jì)圖、路面設(shè)計(jì)圖、路基排水設(shè)計(jì)圖等主要圖紙 ， 編制直線、曲線及轉(zhuǎn)角表 、路基設(shè)計(jì)表、路基土石方數(shù)量計(jì)算表等表格 ， 其中一部分圖紙需要計(jì)算機(jī)繪圖。 因此 ， 為逐步實(shí)現(xiàn)我國(guó)交通運(yùn)輸現(xiàn)代化的總體戰(zhàn)略目標(biāo) ， 按照道路的使用功能和交通需求 ， 重點(diǎn)提高經(jīng)濟(jì)相對(duì)發(fā)達(dá)地區(qū)的公路技術(shù)等級(jí) ， 根據(jù)國(guó)家西部大開(kāi)發(fā)戰(zhàn)略 ， 大力扶持西部地區(qū)公路基礎(chǔ)設(shè)施建設(shè) ， 將是本世紀(jì)末以至下世紀(jì)初我國(guó)公路交通發(fā)展的戰(zhàn)略重點(diǎn) [3]。 關(guān)鍵詞 高速公路 線形設(shè)計(jì) 路面 路基 擋土墻 IV Abstract In this design， is mainly the dongshen expressway design， the length of this road which we design is 3500m， the design of the speed is 100km/h and set up the central of separation strip. Has carried on the analysis to the volume of traffic， search corresponding technical specifications， highway to determine the levels of need and the design of the parameters . Carries on the route selection in the horizontal plan， then carried on the plane geometric design to the path route. This route has two sections of curves establishments transition curve and super elevation. There are five vertical curves in this Profile Design. And also meet various requirements of vertical surface linear bination determined the cross section position and various elements in Cross section design and draws up the cross section chart. The roadbed design of basic content is determining roadbed side slope form and slope. In the design of retaining walls is to meet a variety of recalculations Stability. Pavement Design elements include road type and structure design. Final budgetary is estimate design for puter assistance putation， also discussed some of the content of the forms and drawings. This design not only to understand the various roadbuilding steps， but also skilled in the use of AutoCAD Keywords expressway alignment design road surface roadbed retaining wall I 目 錄 摘 要 ..........................................................................................................................III Abstract ..................................................................................................................... IV 第 1 章 緒論 ............................................................................................................... I 選題意義 ..................................................................................................... 1 中國(guó)公路發(fā)展概況 .................................................................................... 1 本文研究主要內(nèi)容 .................................................................................... 1 第 2 章 總體設(shè)計(jì) ...................................................................................................... 3 概述 ............................................................................................................. 3 設(shè)計(jì)要素確定 ............................................................................................. 3 路線方案確定 ................................................................................ 3 主要 技術(shù)指標(biāo)確定 ........................................................................ 3 第 3 章 路線設(shè)計(jì) .................................................................................................... 6 選線步驟 ..................................................................................................... 6 平面線形設(shè)計(jì) ............................................................................................. 6 線形 ................................................................................................. 6 帶緩和曲線的圓曲線計(jì)算 ............................................................ 6 縱斷面設(shè)計(jì) ................................................................................................11 縱斷面設(shè)計(jì)原則 ...........................................................................11 縱坡設(shè)計(jì)要求 .............................................................................. 12 豎曲線設(shè)計(jì) .................................................................................. 12 超高設(shè)計(jì) ................................................................................................... 17 超高確定 ....................................................................................... 17 超高值計(jì)算 .................................................................................. 17 橫斷面設(shè)計(jì) .............................................................................................. 23 橫斷面設(shè)計(jì)原則 .......................................................................... 23 各項(xiàng)技術(shù)指標(biāo) .............................................................................. 23 II 土石方計(jì)算和調(diào)配 .................................................................................. 24 土石方計(jì)算 .................................................................................. 24 路基土石方調(diào)配及防護(hù)工程 ...................................................... 24 第 4 章 排水設(shè)計(jì) .................................................................................................... 26 路基排水目的和要求 ............................................................................... 26 路基排水設(shè)計(jì)一般原則 ........................................................................... 26 邊溝 ............................................................................................................ 26 邊溝的作用 .................................................................................... 27 邊溝的縱坡 .................................................................................... 27 邊溝流量 ......................................................................................... 27 截水溝 ........................................................................................................ 29 第 5 章 擋土墻設(shè)計(jì) ................................................................................................ 31 擋土墻作用 ............................................................................................... 31 設(shè)計(jì)資料及斷面尺寸 .............................................................................. 31 設(shè)計(jì)資料 ......