【正文】 公路可行性研究 .................................................................................... 3 第 3 章 自然條件對道路設(shè)計(jì)及施工的影響 .................................................... 5 所在地區(qū)的自然條件 .......................................................................... 5 所在地區(qū)的氣象資料 .................................................................... 5 沿線工程地質(zhì)水文情況 ................................................................ 5 沿線植被及土壤分布情況 ............................................................ 5 道路建設(shè)材料及 分布情況 ............................................................ 5 自然條件對道路設(shè)計(jì)及施工的影響 .................................................. 5 氣象因素 ........................................................................................ 5 工程地質(zhì)及水文地質(zhì)因素 ............................................................ 6 植被及土壤因素 ............................................................................ 6 建筑材料分布因素 ........................................................................ 6 第 4 章 道路技術(shù)等級及技術(shù)指標(biāo)的確定 ........................................................ 7 道路技術(shù)等級的確定 .......................................................................... 7 三級道路技術(shù)指標(biāo)的確定 .................................................................. 7 第 5 章 初步勘測和初步設(shè)計(jì) ............................................................................ 9 路線設(shè)計(jì) .............................................................................................. 9 選線原則及注意事項(xiàng) .................................................................... 9 平面設(shè)計(jì) .......................................................................................... 9 平面設(shè)計(jì)步驟 ............................................................................. 9 IV 平面設(shè)計(jì)成果 ............................................................................10 路線縱斷面設(shè)計(jì) .............................................................................10 縱坡的確定 ................................................................................10 坡長的確定 ................................................................................10 豎曲線的確定 ............................................................................10 方案比選 ............................................................................................. 11 第 6 章 詳細(xì)設(shè)計(jì) ...............................................................................................12 路線設(shè)計(jì) .............................................................................................12 路線平面圖 .....................................................................................12 路線縱斷面圖 .................................................................................12 平縱線型的組合 .............................................................................12 平縱組合的原則 .........................................................................12 平縱組合的要求 .........................................................................12 橫斷面圖 .....................................................................................13 路基設(shè)計(jì) .............................................................................................13 擋土墻設(shè)計(jì) .....................................................................................14 涵洞設(shè)計(jì) .........................................................................................20 確定涵洞孔徑 .............................................................................21 確定涵洞縱坡 .............................................................................21 確定涵洞長度 .............................................................................22 填方路段 .........................................................................................23 挖方路段 .........................................................................................23 路基防護(hù) .........................................................................................24 排水設(shè)計(jì) .............................................................................................24 路拱設(shè)計(jì) .........................................................................................24 路基邊坡及溝渠設(shè)計(jì) .....................................................................24 邊坡穩(wěn)定計(jì)算 .............................................................................25 邊溝穩(wěn)定計(jì)算 ..............................................................................26 路面設(shè)計(jì) .............................................................................................27 V 瀝青混凝土路面設(shè)計(jì) .................................................................... 27 路面結(jié)構(gòu)組合與材料選取 ........................................................ 27 瀝青及集料的選擇 .................................................................... 27 瀝青路面結(jié)構(gòu)設(shè)計(jì) .................................................................... 28 水泥混凝土路面設(shè)計(jì) .................................................................... 33 路面結(jié)構(gòu)層組合 ........................................................................ 33 混合料要求 ................................................................................ 34 結(jié)構(gòu)厚度設(shè)計(jì) ............................................................................ 34 第 7 章 道路設(shè)計(jì)概預(yù)算 .................................................................................. 40 結(jié)論 .................................................................................................................... 45 參考文獻(xiàn) ............................................................................................................ 46 致謝 .................................................................................................................... 47 第 1 章 緒論 1 第 1章 緒論 課題背景 我國公路運(yùn)輸特點(diǎn)： 由于社會生產(chǎn)與消費(fèi)的需要，人們必須克服空間上的阻隔，實(shí)現(xiàn)人和物的移動，為具體實(shí)現(xiàn)這種移動提供服務(wù)所進(jìn)行的經(jīng)濟(jì)活動成為交通運(yùn)輸。公路是交通運(yùn)輸方式中的一種。其特點(diǎn)是： （ 1）機(jī)動靈活 能適應(yīng)各種地形條件，可以在規(guī)定的時間和地點(diǎn)迅速集中和分散貨物。從而節(jié)