道橋二級公路畢業設計-wenkub

　

【正文】 選線定下來的，從這個意義上講，選線時就已經開始了現形 設計的工作。 [1] 總體設計的基本任務 總體設計是在項目工程可行性研究報告所作項目建設必要性、經濟合理性、技術可行性、 實施可能性和最佳綜合社會經濟效益發揮的可靠性等綜合研究的基礎上， 對路線作出的全面安排，包括如下幾方面 。 Conclusion................................................................................................................ 57 Thanks ........................................................................................ 錯誤 !未定義書簽。 structure bination design.......................... 錯誤 !未定義書簽。 Chapter8 Slope protection ........................................................ 錯誤 !未定義書簽。 Retaining wall stability checking ......................... 錯誤 !未定義書簽。 The retaining wall39。 Allocation methods............................................... 錯誤 !未定義書簽。 Ultrahigh design steps ......................................... 錯誤 !未定義書簽。 Vertical curve design ...................................................... 錯誤 !未定義書簽。 Chapter4 Alignment design ...................................................... 錯誤 !未定義書簽。 Horizontal alignment design .......................................... 錯誤 !未定義書簽。 Chapter3 Road route and graphic design ............................... 錯誤 !未定義書簽。 Road construction significance ...................................... 錯誤 !未定 義書簽。 關鍵詞 泉州二級公路 選線 瀝青混泥土 II Abstract This design is mainly quanzhou secondary roads B section routes for the design, the design of content mainly includes route, graphic design, alignment design, crosssectional design, ultrahigh design, retaining wall design, asphalt concrete pavement design. In order to economy applicable, the design of roadbed width to 14m, dirt road shoulder m, in order to ensure drainage, paving road arch degrees 2%, dirt road shoulder for 3%. Embankment slope, proportion in a 11. 5, cutting place set ditches, ditches slope 1:1, height and depth are m, in deep dig sections another set cut ditch cut ditch, cut ditch slope, height and depth than with ditches and consistent. Pavement using of asphalt concrete pavement, and because high, we inherit road level, so the method heavier traffic in three layers, namely, type structure using intersecting 4cm thick finegrained type of asphalt mixes clay, dense worthy of using 5cm thick layer of grain of type of asphalt mixes clay, dense match by next level 6cm thick coarse grained type dense matchs mixes clay. Skey word Quanzhou secondary roads route selection Asphalt mixes clay III 目 錄 摘 要 ......................................................................................................................... I Abstract ....................................................................................................................... II 第 1 章 緒論 ............................................................................................................... 1 總體設計的基本任務 .................................................................................... 1 沿線自然條件 ................................................................................................ 2 道路建設的意義 ............................................................................................ 2 第 2 章 公路等級 ....................................................................................................... 3 交通分析 ........................................................................................................ 3 主要技術指標 ................................................................................................ 4 第 3 章 道路選線及平面設計 ................................................................................... 6 選線的原則與步驟 ........................................................................................ 6 選線的原則 .......................................................................................... 6 選線的步驟 .......................................................................................... 7 平面線形設計 ................................................................................................ 8 直線段 .................................................................................................. 8 曲線段 .................................................................................................. 8 方案比選 ...................................................................................................... 14 第 4 章 縱斷面設計 ................................................................................................. 16 縱坡設計 ...................................................................................................... 16 設計要求 ............................................................................................ 16 設計的步驟 ........................................................................................ 17 豎曲線設計 .................................................................................................. 18 第 5 章 路基設計 ..................................................................................................... 22 橫斷面設計 .................................................................................................. 22 超高設計 ...................................................................................................... 22 超高設計步驟 ................................................................................... 22 土石方計算與調配 ...................................................................................... 26 土石方計算 ........................................................................................ 26 調配原則 ............................................................................................ 27 調配方法 ........................................................................................... 27 IV 第 6 章 排水設計 ..................................................................................................... 29 第 7 章 擋土墻