【正文】 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 ..................................................................................... 31 斷面尺寸 ..................................................................................... 31 上墻斷面強(qiáng)度驗(yàn)算 .................................................................................. 32 土壓力和彎矩計(jì)算 ...................................................................... 32 截面應(yīng)力驗(yàn)算 .............................................................................. 36 基頂截面應(yīng)力驗(yàn)算 .................................................................................. 36 破裂角 ........................................................................................... 36 土壓力 ........................................................................................... 37 土壓力對驗(yàn)算截面的彎矩 .......................................................... 38 墻身自重及對驗(yàn)算截面產(chǎn)生的彎矩 ......................................... 38 衡重臺上填料重及彎矩計(jì)算 ...................................................... 38 截面強(qiáng)度驗(yàn)算 .............................................................................. 39 基底截面強(qiáng)度及穩(wěn)定性驗(yàn)算 .................................................................. 40 破裂角 ........................................................................................... 40 土壓力 ........................................................................................... 41 土壓力對基底截面的彎矩計(jì)算 : ............................................... 41 墻身和基礎(chǔ)自重及 對基底截面產(chǎn)生的彎矩 ............................. 42