【正文】 畢業(yè)設(shè)計說明 書 邳州 至 新沂 段二級公路設(shè)計 專 業(yè) 土木工程（道路橋梁） 邳州至新沂段二級公路設(shè)計 邳州至新沂段二級公路設(shè)計 摘要 ： 本設(shè)計為 邳州至新沂段二級公路 ，全長 千米，設(shè)計車速 80km/h,路基寬度為 12m。根據(jù)設(shè)計公路交通量及其使用任務(wù)和性質(zhì)，確定了公路等級。根據(jù)技術(shù)標(biāo)準(zhǔn)，本著安全、經(jīng)濟、實用、美觀的原則，對該路段進行設(shè)計。 此次畢業(yè)設(shè)計主要包括的內(nèi)容如下 ： ：包括紙上選線、定線平曲線、直線設(shè)計等； ：包括拉坡、豎曲線設(shè)計等； 面設(shè)計：根據(jù)公路等級，確定公路的路基寬度和路拱坡度等； ：包括各個樁號的填挖計算、填挖較大地段的穩(wěn)定分析、整個線路的土石調(diào)運借配等； ：根據(jù)公路等級和設(shè)計規(guī)范，確定路面結(jié)構(gòu)； 、路面排水設(shè)計：根據(jù)當(dāng)?shù)厮牡刭|(zhì)狀況，對于路基排水，采用了邊溝排水設(shè)施；對于路面排水，對路面進行了路拱設(shè)計； ：在填挖量較大的地段進行 擋土墻設(shè)計，以保證土體的穩(wěn)定性； —— 軟土地基的處理：本路線經(jīng)過一段軟土地基，為增大地基承載力，對軟土地基進行了相應(yīng)的加固措施。 關(guān)鍵詞： 路線； 橫斷面；縱斷面；路基路面；擋土墻；軟土地基。 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。 design: including pull slope, the vertical curve design, etc。 design :Determining the width of the subgrade and road slope according to the level of the highway。 design of the subgrade, and the work involves a lot of items: the analysis of the stability of brae。 the fill or dig height of every peg and so on。 design of pavement:Determining the pavement structure according to the level of the highway and designal specification。 design of the drainage project:According to the local hygrological geology condition,for subgrade drainage,adopting the ditches drainage facilities。for pavement drainage,carring on the road arch design。 design of retaining wall:Designing the retaining wall to ensure the stability of the soil 。 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。longitudinal。crosssectional。roadbed and road surface。retaining wall。soft soil. 邳州至新沂段二級公路設(shè)計 目 錄 第一章 緒 論 ............................................................................................... 錯誤 !未定義書簽。 概述 ...................................................................................................................................... 6 選題意義 .............................................................................................................................. 6 設(shè)計概況 .............................................................................................................................. 6 第二章 初步設(shè)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。 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(shè)計 ........................................................................................... 錯誤 !未定義書簽。 線形設(shè)計 ............................................................................................................................ 11 平面線形設(shè)計 原則 ........................................................................ 錯誤 !未定義書簽。 平曲線計算 ........................................................................................... 錯誤 !未定義書簽。 線形要素的計算 ......................................................................................................... 24 逐樁坐標(biāo) 的計算 ......................................................................................................... 25 第四章 縱斷面設(shè)計 .................................................................................................................... 15 縱斷面設(shè)計原則 ................................................................................................................ 16 縱坡設(shè)計要求 .................................................................................................................... 16 豎曲線設(shè)計 ........................................................................................................................ 18 豎曲線設(shè)計 ................................................................................................................. 18 豎曲線的計算 ............................................................................................................. 18 平、縱線形組合 ................................................................................................................ 20 第五章 橫斷面設(shè)計 ....................................................................................... 錯誤 !未定義書簽。 橫斷面設(shè)計原則 ................................................................................................................ 21 橫斷面的組成 .................................................................................................................... 21 平曲線加寬設(shè)計 ................................................................................................................ 22 超高設(shè)計 ................................................................................................