【正文】 .................................................................................................76 加載預壓系統(tǒng) .......................................................................................................76 參考文獻 ......................................................................................................... 錯誤 !未定義書簽。 線形要素的計算 ......................................................................................................... 24 逐樁坐標 的計算 ......................................................................................................... 25 第四章 縱斷面設計 .................................................................................................................... 15 縱斷面設計原則 ................................................................................................................ 16 縱坡設計要求 .................................................................................................................... 16 豎曲線設計 ........................................................................................................................ 18 豎曲線設計 ................................................................................................................. 18 豎曲線的計算 ............................................................................................................. 18 平、縱線形組合 ................................................................................................................ 20 第五章 橫斷面設計 ....................................................................................... 錯誤 !未定義書簽。 公路等級的確定 .................................................................................................................. 4 道路選線及方案比選 ........................................................................... 錯誤 !未定義書簽。roadbed and road surface。 design of retaining wall:Designing the retaining wall to ensure the stability of the soil 。 the fill or dig height of every peg and so on。 The design of a secondgrade road from Pizhou to Xinyi Abstract:In this design, the task is to design a secondgrade road from Pizhou to Xinyi. The length of the road is speed of design is 80km/h and the width of the subgrade is to the given traffic volume,service level and attribute of the proposed road, the road is defined as the highway. According to the technical standarad and in a safe,economical,practical and aesthetic principles,this road has been designed . The prime contents of the design project include: design: includeing the paper select line, settle line, plane curve, straight line design etc。根據(jù)設計公路交通量及其使用任務和性質(zhì)，確定了公路等級。根據(jù)技術(shù)標準，本著安全、經(jīng)濟、實用、美觀的原則，對該路段進行設計。 design: including pull slope, the vertical curve design, etc。 design of pavement:Determining the pavement structure according to the level of the highway and designal specification。 design of a special topic—— soft soil:This route pass a period of soft soil foungdation,in order to increase to the bearing capacity ,it take some corresponging reinforcemeng measures. Keywords: highway。retaining wall。 選線的一般原則 .............................................................................................................6 平原微丘區(qū)選線原則 .....................................................................................................7 選線方法及步驟 .............................................................................................................7 線路方案經(jīng)濟技術(shù)比較 .................................................................................................9 第三章 平面設計 ........................................................................................... 錯誤 !未定義書簽。 橫斷面設計原則 ................................................................................................................ 21 橫斷面的組成 .................................................................................................................... 21 平曲線加寬設計 ................................................................................................................ 22 超高設計 ............................................................................................................................ 23 第六章 路基設計 ........................................................................................................................ 25 路基設計的內(nèi)容與要求 .................................................................................................... 26 路基斷面設計 ............................................................................................................... 26 路基設計要求 ............................................................................................................... 26 填料的選擇及壓實 標準 .................................................................................................... 26 土石方調(diào)配 ........................................................................................................................ 27 調(diào)配原則 ..................................................................................................................... 27 土石方調(diào)配方法 ......................................................................................................... 28 路基排水設計 ................................................................................................................28 路基排水的目的和要求 ..........................................................................................47 路基排水設計一般原則 .........................................................................................47 路基排水系統(tǒng)設計步驟 .............................................................................................47 路基排水設施 ............................................................................................................47 第七章 路面設計 ...............................................................................