摘 要在此设计中,主要是南口镇至前水岭段公路设计,根据这个地区交通量,找到相应的技术法律规范,以确定所需的道路水平和设计参数。该公路为三级公路,设计速度是 40km/h,双向 2 车道,路基宽度是 8.5m,行车道规格是2×3.5 米。主要设计元素包括:①路线的设计:纵断面的设计、平曲线的设计、横断面的设计;②路基设计:支挡结构设计、排水设计;③路面结构设计;④经济分析:土石方计算;⑤施工组织和技术经济分析。该公路属于公路自然区划Ⅱ 2区,年平均降水量为 580.5mm,农田路段路基的最小的填方高度满足设计要求。本设计中该路线全长为 3520.559m,平曲线设置了 4 个交点,圆曲线半径 Rmax=100m,Rmin=60m。在纵断面上设计 3个变坡点,竖曲线半径均为 3000m,坡度最小为 0.202%,最大为 1.570%。路面结构设计采纳沥青混凝土路面(柔性)。在公路的排水设计中,边沟、排水沟等。整个设计必须严格遵守我国的交通部现行法律规范。关键词:公路设计;路面;路基;交通量AbstractIn this design, mainly water before NanKou Town to ridge highway design, according to the traffic in this area, to find the corresponding technical specification, to determine the required level of road and design parameters. The highway for level 3, the design speed is 40 km/h, 2 lanes, roadbed width of 8.5 m, driveway specification is 2 x 3.5 meters. The main design elements include: (1) the design of the route: profile design, the design of plane curve, the cross-sectional design; (2) the roadbed design: retaining structure design, drainage design; (3) pavement structure design; (4) economic analysis: conditions calculation; (5) construction organization and technical and economic analysis. The highway belongs to highway natural regionalization Ⅱ 2 area, an average annual rainfall of 580.5 mm, the minimum fill % of farmland roads roadbedKeyword:Highway;pavement;subgrade;traffic引 言 南口镇至前水岭段公路设计是在学院土木工程本科专业的所有课程之后,结合现场见习的基础上,通过现场收集的大量初步设计和现场技术资料,...