【正文】 畢業(yè)設(shè)計(jì)說明書 課題名稱 南寧至玉林二級公路綜合設(shè)計(jì) 學(xué)院 (部 ) 公 路 學(xué) 院 專 業(yè) 班 級 學(xué)生姓名 學(xué) 號 04 月 26 日至 05 月 29 日共 7 周 指導(dǎo)教師 (簽字 ) 教學(xué)院長 (簽字 ) 摘 要 本設(shè)計(jì)為 南寧到玉林二級公路綜合設(shè)計(jì) 。根據(jù)設(shè)計(jì)公路的交通量及其使用任務(wù)和性質(zhì)，確定為雙車道二級公路。道路所經(jīng)地區(qū)為丘陵區(qū)，高差變化不大，但受地形等環(huán)境條件限制。全線總長 5028 米，有 7 個平曲線、 5 個豎曲線、 14 個過水涵洞，設(shè)計(jì)車速 60km/h，路基一般寬度 10m。路面為瀝青混凝土結(jié)構(gòu)。本設(shè)計(jì)說明書進(jìn)行路線方案的論證，確定合適的設(shè)計(jì)方案，并推薦一個最佳方案進(jìn)行詳細(xì)的技術(shù)設(shè)計(jì)，包括路線的平、縱、橫設(shè)計(jì)，路基路面設(shè)計(jì)和排水設(shè)計(jì)，環(huán) 境評價等 各方面內(nèi)容。 關(guān)鍵詞： 玉林，丘陵，二級公路，平、縱、橫設(shè)計(jì)，路基，路面，排水 , 瀝青混凝土 Abstract: The design is for a new built highway in YuLin Province of Guangxi. According to the given traffic volume service level and attribute of the proposed highway ,the highway is defined as the 2class highway lies in the center of Guangxi Province of Guilin Province to Liuzhou , and the routine goes through Hilly region area. The length of the route is meters. There are 6 culverts , 4 plan curves , and 12 Water culverts along the routine .The desigh vehicle speed is 80km/h and the width of the subbase is pavement is made up of cement concrete. The determination of highway grade ,horizontal alignment design ,vertical alignment design ,subgrade and drainage design, pavement design are described in this technical manaul. The determination of culverts39。 location, type and span are also introduced in this derection. Key words: Hilly region, Second grade highway, Horizontal alignment design, Vertical alignment design, Subgrade, Pavement, Drainage, Asphalt concrete 1 目錄 緒論 ................................................................................................................................ 1 第一章 設(shè)計(jì)技術(shù)標(biāo)準(zhǔn)的確定 ................................................................................... 2 該公路的設(shè)計(jì)意義 .............................................................................................. 2 沿線地貌，地形，地質(zhì)，及自然地理特征 ...................................................... 2 氣候特點(diǎn) ........................................................................................................ 2 降水量及地下水埋深 .................................................................................... 3 地形與地貌 .................................................................................................... 3 地質(zhì)與土質(zhì) .................................................................................................... 3 植被、作物等概況 ........................................................................................ 4 道路等級和主要技術(shù)指標(biāo)的論證和確定 .......................................................... 4 交通量計(jì)算及公路等級的選用 .................................................................... 4 行車速度 ........................................................................................................ 6 最小半 徑的確定 ............................................................................................ 6 最大縱坡、最小坡長、最大坡長；豎曲線最小半徑和長度的確定 ........ 7 緩和曲線的確定 ............................................................................................ 8 車 道寬度、路肩寬度和路基寬度 ................................................................ 8 視距的確定 .................................................................................................... 9 本次設(shè)計(jì)主要技術(shù)指標(biāo) ................................................................................ 9 第二章 路線設(shè)計(jì) ..................................................................................................... 10 路線平面設(shè)計(jì) .................................................................................................... 10 平面線形設(shè)計(jì) .............................................................................................. 10 平面設(shè)計(jì)中的基本原則 .............................................................................. 11 線形的設(shè)計(jì)步驟 :......................................................................................... 12 線形設(shè)計(jì) ...................................................................................................... 13 路線縱斷面設(shè)計(jì) ................................................................................................ 14 縱斷面設(shè)計(jì) .................................................................................................. 14 路線橫斷面設(shè)計(jì) ................................................................................................ 16 查相關(guān)資料得各項(xiàng)技術(shù)指標(biāo) ...................................................................... 17 加寬的確計(jì)算 .............................................................................................. 17 第三章 路基設(shè)計(jì) ..................................................................................................... 17 路基橫斷面設(shè)計(jì) ................................................................................................ 18 填方路基 ..................................................................................................... 18 挖方路基 ..................................................................................................... 18 路基排水設(shè)計(jì) .................................................................................................... 18 路基排水設(shè)計(jì)的一般原則為： .................................................................. 19 常用的路基地面排水設(shè)備 .......................................................................... 19 邊溝 .............................................................................................................. 19 2 截水溝 .......................................................................................................... 19 排水溝 .......................................................................................................... 20 路基的強(qiáng)度與穩(wěn)定性同水的關(guān)系 ............................................................. 21 地