【正文】 的曲線內(nèi)移值和切線增長值 除上述三個(gè)參數(shù)的計(jì)算公式與對(duì)稱基本型不同外，其余各參數(shù)計(jì)算 公式均與對(duì)稱基本型相同。 起點(diǎn)至 JD1： EZHRqTHYHZoQZYHJDβ00βααpSLLSLL湖南科技大學(xué)本科生畢業(yè)設(shè)計(jì)（論文） 8 DX＝ ＝ 0 Dy＝ ＝ 393 第一段導(dǎo)線長度 S1＝ 393m，方位角 θ＝ 90186。 每三個(gè)平曲線（非對(duì)稱基本型）： JD3 樁號(hào) K1+，圓曲線半徑 60m，第一段緩和曲線長 75m、切線長 ，第二段緩和曲線長 35m、切線長 ，平曲線長 ，外距 。 5. 城市快速、主干路應(yīng)做好路線的線形組合設(shè)計(jì)，各技術(shù)指標(biāo)應(yīng)恰當(dāng)、平面順適、斷面均衡、橫斷面合理；和結(jié)構(gòu)的選型與布置應(yīng)合理、實(shí)用、經(jīng)濟(jì)。道路平面設(shè)計(jì)應(yīng)處理好直線與平曲線的銜接，合理設(shè)置直線、圓曲線、緩和曲線、超高、加寬。 3. 現(xiàn)場勘察，對(duì)沿線地形進(jìn)行勘察，初步落實(shí)導(dǎo)線的位置找出不合理導(dǎo)線點(diǎn)并糾正。 4. 選線應(yīng)深入了解人們的出行情況，盡量滿足人們?nèi)粘Ｉ畛鲂械男枰?，綜合考慮與當(dāng)?shù)仄渌延械缆返你暯?。 選線的原則 在道路設(shè)計(jì)的各個(gè)階段，應(yīng)運(yùn)用各種先進(jìn)手段對(duì)路線方案作深入，細(xì)致的研究，選定最優(yōu)路線方案 。 施工條件 本路 段 起終點(diǎn)均與已建成校園路相連，交通條件較好 ；線路及附近區(qū)域路基填料、砂石料等原材料相當(dāng)豐富。 本設(shè)計(jì) 針對(duì)國內(nèi)各城市道路出現(xiàn)的各方面問題，并參照湖南科技大學(xué)校園路線規(guī)劃 圖 ，對(duì)湖南科技大學(xué)致志路做了初步設(shè)計(jì)，旨在解決南北兩校區(qū)及學(xué)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(xué)們的出行更加方便、快捷。 湖南科技大學(xué)本科生畢業(yè)設(shè)計(jì)（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(xué)本科生畢業(yè)設(shè)計(jì)（論文） i 目錄 第一章 前言 ......................................................................................................................... 1 第二章 工程概況及設(shè)計(jì)標(biāo)準(zhǔn) ........................................................................................ 3 工程概況 ...................................................................................................................... 3 路線起訖點(diǎn) ........................................................................................................... 3 地形、地質(zhì)、氣候、水文等自然特征 ............................................................... 3 施工條件 ............................................................................................................... 3 設(shè)計(jì)標(biāo)準(zhǔn) ...................................................................................................................... 3 設(shè)計(jì)依據(jù) ............................................................................................................... 3 主要技術(shù)指標(biāo)及參數(shù) ........................................................................................... 3 第三章 平面設(shè)計(jì) ................................................................................................................ 5 選線 .............................................................................................................................. 5 選線的原則 ........................................................................................................... 5 選線的步驟和方法 ............................................................................................... 5 平曲線設(shè)計(jì) .................................................................................................................. 5 平面線形設(shè)計(jì)的一般原則 ................................................................................... 5 設(shè)計(jì)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(jì)算 ............................................................................................... 6 行車視距保證 .............................................................................................................. 9 逐樁坐標(biāo)計(jì)算 ............................................................................................................ 10 直線上中樁坐標(biāo)的計(jì)算 ..................................................................................... 10 設(shè)緩和單曲線中樁坐標(biāo)計(jì)算 ............................................................................. 11 第四章 縱斷面設(shè)計(jì) ......................................................................................................... 13 縱坡及坡長設(shè)計(jì) ........................................................................................................ 13 縱坡設(shè)計(jì)的一般要求 ......................................................................................... 13 平出線與豎曲線的組合一般原則 ..................................................................... 13 設(shè)計(jì)依據(jù) ............................................................................................................. 13 縱斷面設(shè)計(jì)步驟 ................................................................................................. 14 豎曲線設(shè)計(jì) ................................................................................................................ 15 湖南科技大學(xué)本科生畢業(yè)設(shè)計(jì)（論文） ii 設(shè)計(jì)技術(shù)規(guī)范 ..................................................................................................... 15 豎曲線要素計(jì)算 ................................................................................................. 15 第五章 橫斷面設(shè)計(jì) ......................................................................................................... 17 概述 ............................................................................................................................ 17 橫斷面設(shè)計(jì) .......................................