毕业论文--广梧高速公路第一标段设计.doc

广梧高速公路第一标段设计 摘要：本设计为广梧高速公路第一标段设计。设计主要包括公路选线定线、平面线形设计、纵断面设计、横断面设计、路面设计、道路排水设计及桥涵设计等等几个主要部分。考虑到平原地区地势平坦，路线全长3781.052m，共设2处交点，涵洞7个。平面线形设计包括直线以及各类曲线要素的确定，圆曲线采用的半径皆为1000m。纵断面设计要求确定竖曲线及其要素、以及涵洞布设位置等，最大纵坡值额为1.64%，最小纵坡为0.55%，共设3处竖曲线，竖曲线半径最大值为20000m, 最小值为10000m。横断面设计包括路面宽度、路基的填高以及边坡的确定，还要考虑土石方调运问题，设计的路基宽度为26.0m路面宽度为15.0m。。路面设计主要是确定路面结构形式，并确定各结构层合理的厚度，本设计选用沥青路面，面层厚15（4+5+6）cm，基层为6cm厚度，底基层为16cm厚度。 关键词：高速公路 路线 路基 路面 涵洞设计 挡土墙 The first section of Guang Wu Expressway Design Abstract: This design is the first section of Guang Wu expressway. Design includes route selection of highway alignment, horizontal alignment design, longitudinal design, cross-sectional design, road design, road and drainage design and the design of the bridge and so on several main parts. Taking into account the plain terrain flat, the route length 3781.052m, a total of 2 intersection, culvert 7. The plane alignment design includes linear and all kinds of curve elements, the radius of circle curve is 1000m. Longitudinal section design requires vertical curve and its elements, and the location of the culvert laid., determining the maximum longitudinal slope value amount of 1.64%, minimum vertical slope of 0.55%, a total of three vertical curve, vertical curve radius maximum 20000m, the minimum is 10000m. Design cross sectional width of pavement, subgrade filling height and slope, but also consider the problem of earthwork allocation and transport, design roadbed width for with the width of pavement 15.0m. Pavement design is mainly determine the pavement structures, and to determine the structural layer thickness, the design selection of asphalt pavement, the surface layer of thick (15 4+5+6) cm, base 6cm thickness, the bottom base is 16cm thickness. Keywords: highway subgrade pavement culvert design retaining wall 目录 1.绪论 5 1.1. 项目概述 5 1.2. 项目建设的重要意义 5 1.3. 我国高速公路的发展 5 2. 路线设计 7 2.1. 公路技术标准的确定 7 2.2. 路线方案设计 8 2.3. 路线平面设计 8 3. 纵断面设计 16 3.1. 纵断面概述 16 3.2. 路线比选 21 4. 横断面设计 22 4.1. 行车道与路肩设计 22 4.2.