【正文】 路基路面及排水設計、防護工程設計、涵洞設計、擋土墻設計等。 本設計針對國內各城市道路出現(xiàn)的各方面問題，并參照湖南科技大學校園路線規(guī)劃圖，對湖南科技大學致志路做了初步設計，旨在解決南北兩校區(qū)及學生公寓、食堂的連接問題，為南北兩校區(qū)提供交通上的便利，使同學們的出行更加方便、快捷。 隨著時代的進步和科技的發(fā)展，我國道路工程建設達到了一個新的頂峰，道路總里程位居世界前列。 湖南科技大學本科生畢業(yè)設計（論文） ii 湖南科技大學本科生畢業(yè)設計（論文） ii ABSTRACT This program was preliminary designed by ZhiZhi Lu in Hunan University of Science and Technology. Starting point stake number is K0+, ending point stake number is K1+ and the whole length of this road is meters. The road grade is urban secondary trunk, class Ⅲ , the design speed is 30km/h. This design includes routes` plane, longitudinal section and horizontal section, asphalt pavement, drainage design and intersection design. The scheme of this route bined the Longterm blueprint of Hunan University of Science and Technology and facilities along the road such as apartment of students, canteen, teaching buildings and so on. It follows the general principles of the urban road design. The design of vertical curve considered students` daily travel, so the longitudinal slope should not be too sharp. But on the other hand, parts of the route have large height differences, and the limit of the elevation of existing buildings along both sides, so, the maximum longitudinal slope is % and this more or less makes some trouble to nonmotor vehicle driving. Key words: Horizontal curve, Subgrade, Earthwork, Retaining wall, Asphalt Concrete, Drainage. 湖南科技大學本科生畢業(yè)設計（論文） iii 湖南科技大學本科生畢業(yè)設計（論文） i 目錄 第一章 前言 ......................................................................................................................... 1 第二章 工程概況及設計標準 ........................................................................................ 3 工程概況 ...................................................................................................................... 3 路線起訖點 ........................................................................................................... 3 地形、地質、氣候、水文等自然特征 ............................................................... 3 施工條件 ............................................................................................................... 3 設計標準 ...................................................................................................................... 3 設計依據(jù) ............................................................................................................... 3 主要技術指標及參數(shù) ........................................................................................... 3 第三章 平面設計 ................................................................................................................ 5 選線 .............................................................................................................................. 5 選線的原則 ........................................................................................................... 5 選線的步驟和方法 ............................................................................................... 5 平曲線設計 .................................................................................................................. 5 平面線形設計的一般原則 ................................................................................... 5 設計參數(shù)的確定 ................................................................................................... 6 平面線形要素的組合類型 ................................................................................... 6 平曲線要素的計算 ............................................................................................... 6 行車視距保證 ............................................................................................................ 10 逐樁坐標計算 ............................................................................................................ 10 直線上中樁坐標的計算 ..................................................................................... 10 設緩和單曲線中樁坐標計算 ............................................................................. 11 第四章 縱斷面設計 ......................................................................................................... 13 縱坡及坡長設計 ........................................................................................................ 13 縱坡設計的一般要求 ......................................................................................... 13 平出線與豎曲線的組合一般原則 ..................................................................... 13 設計依據(jù) ............................................................................................................. 13 縱斷面設計步驟 ................................................................................................. 14 豎曲線設計 ................................................................................................................ 15 湖南科技大學本科生畢業(yè)設計（論文） ii 設計技術規(guī)范 ..................................................................................................... 15 豎曲線要素計算 ................................................................................................. 15 第五章 橫斷面設計 ......................................................................................................... 17 概述 ............................................................................................................................ 17 橫斷面設計 ................................................................................................................ 17 一般規(guī)定 ............................................................................................................. 17 橫斷面形式 ......................................................................................................... 18 橫斷面組成 ......................................................................................................... 18 路拱、超高及加寬 ............................................................................................. 19