【正文】 ........ 13 豎曲線要素計(jì)算 ................................................................................................................... 14 平縱組合設(shè)計(jì) ...................................................................................................................... 15 7 橫斷面設(shè)計(jì) ............................................................................................................................ 17 橫斷面設(shè)計(jì) .......................................................................................................................... 17 斷面設(shè)計(jì)原則 .................................................................................................................... 17 各項(xiàng)技術(shù)指標(biāo) .................................................................................................................... 17 平曲線加寬以其過(guò)度 ............................................................................................................ 17 路拱及超高 .......................................................................................................................... 18 路拱坡度 .......................................................................................................................... 18 土路肩的橫坡 ................................................................................................................... 18 超高緩和段長(zhǎng)度的確定 ..................................................................................................... 18 超高設(shè)計(jì) .......................................................................................................................... 20 土石方計(jì)算和調(diào)配 ............................................................................................................... 23 土石方計(jì)算 ........................................................................................................................ 23 土石方的調(diào)配 .................................................................................................................... 24 8 方案比選 ...................................................................................................................................7 9 結(jié)構(gòu)層設(shè)計(jì) ............................................................................................................................. 26 交通分析 ............................................................................................................................. 26 初擬水泥路面結(jié)構(gòu) ............................................................................................................... 26 路面材料參數(shù)確定 ............................................................................................................... 27 荷載疲勞應(yīng)力 ...................................................................................................................... 27 溫度疲勞應(yīng)力 ...................................................................................................................... 28 水泥路面電算驗(yàn)算 ............................................................................................................... 29 接縫的構(gòu)造及設(shè)計(jì) ............................................................................................................... 30 瀝青路面設(shè)計(jì) ...................................................................................................................... 34 III 計(jì)算容許彎拉應(yīng)力 ............................................................................................................... 35 計(jì)算設(shè)計(jì)彎沉值 ................................................................................................................. 38 計(jì)算容許彎拉應(yīng)力 ............................................................................................................. 38 10 驗(yàn)算 ..................................................................................................................................... 42 擋土墻驗(yàn)算 ........................................................................................................................ 42 邊坡穩(wěn)定驗(yàn)算 .................................................................................................................... 47 ........................................................................................................................... 48 擋土墻工程量計(jì)算 ............................................................................................................. 48 水泥路面工程量 ................................................................................................................. 49 瀝青路面工程量 ................................................................................................................. 49 結(jié) 論 ....................................................................................................................................... 51 致謝 .......................................................................................................................................... 52 4 1 緒 論 資料 由交通量組成表，折算成以小客車(chē)為標(biāo)準(zhǔn)進(jìn)行計(jì)算 ,見(jiàn)表 11： 表 11 交通量折算表 車(chē)型 交通量（輛 /日） 折算系數(shù) 折算交通量（輛 /日） 小汽車(chē) 700 700 黃河 JN150 300 600 躍進(jìn) NJ130 250 375 解放 A10B 300 450 太脫拉 138 100 200 總 計(jì) 2025 計(jì)算遠(yuǎn)景設(shè)計(jì)年限平均晝夜交通量由公式（ 21）計(jì)算 Nd=N0(1+γ )n1 式中 Nd— 遠(yuǎn)景設(shè)計(jì)年平均日交通量，輛 /日； N0— 起始年平均日交通量，輛 /日； γ— 年平均增長(zhǎng)率，取 5%； n— 遠(yuǎn)景設(shè)計(jì)年限，取 20年； 所以 Nd=2025(1+5%)201=5117（輛 /日） 根據(jù)《公路工程技術(shù)標(biāo)準(zhǔn)》 JTG B012020 ，擬 定該條道路為雙向兩車(chē)道的三級(jí)公路，設(shè)計(jì)車(chē)速為 40km/h,設(shè)計(jì)采用的服務(wù)水平為二級(jí)。 pavement design includes a layer of pavement structure design, the thickness of pavement structure design and checking calculation of pavement structure layer. To determine the class of highway anddesign of various technical indicators, as the highway route selection ofprepared raw materials, to determine the level of the circuit. And the design of the scheme are further refinement, on the route of the plane and vertical section conducted a prehensive analysis, according to the technical standard and