某某公路设计毕业设计计算书.doc

摘 要 本设计为辽宁省抚顺市管辖范围内公路的一段，即大苏河至陈家店段公路设计。设计车速为60km/h，双向二车道,路基宽度为12m，行车道2×3.75m。主要设计内容包括：一、路线设计：平曲线设计、纵断面设计、横断面设计。二、路基设计：排水设计。三、路面结构设计。此路线全长m，平曲线设3个交点，圆曲线半径为400m。纵断面设置个，其中包括个凸曲线和个凹曲线，竖曲线最小半径m，最大半径m，最小坡度为%，最大坡度为4.424%满足了平纵面线形组合设计中的各种要求路面结构设计采用沥青路面(柔性)。Abstract The design of fushun city of liaoning province as jurisdiction of a highway, that SuHe to the store section of highway design. The design of the speed for 60 km/h, two-way two lanes, roadbed width for 12 m, carriageway for 2 x 3.75 m. The main content of this design is as follows: The main design content includes: a, route design: plane curve design, design, longitudinal cross-sectional design. Second, roadbed design: drainage design. Three, the structure design, etc. This course is a 4193.224 m, flat curve set three intersect, circular curve radius for 400 m. Set up 10 longitudinal vertical curve, including six convex vertical curve and four hollow shaft curve, vertical curve radius of minimum of 2000 m, 22000 m maximum radius, the minimum gradient is 0.362%, the biggest slope as 4.424%, and are met longitudinal surface flat linear combination of the design requirements. The pavement structure design of asphalt concrete pavement (flexible). Highway transverse section, the shoulder by carriageway, ditches, slope components. The whole design are strictly abide by the ministry of communications in the current specification, including the calculation of highway plane, elevation and transverse section, roadbed structure and ditches drainage structure. Key words: Plane; Longitudinal; Cross-sectional; Pavement; The shoulder 引 言 ５０20万公里等外公路，等外公路占公路总里程的比重达到14.4%，西部地区更高，达到21.8％，技术等级构成不理想。从行政区划分布看，由于经济发展和人口分布的不平衡，导致东部地区公路密度较大，高等级公路的比例也较高，明显高于全国平均水平，更高于中、西部地区水平。 　　 因此，为逐步实现我国交通运输现代化的总体战略目标，根据国家西部大开发战略，大力扶持西部地区公路基础设施建设，将是我国公路交通发展的战略重点。 本设计既选线是在符合国家建设发展的需要下，结合自然条件选定合理路线，使筑路费用与使用质量得到正确的统一，达到行车迅速安全，经济舒适及构造物稳定耐久，易于养护的目的。根据道路使用任务和性质，综合考虑路线区域国民经济发展情况与远景规划，正确处理好近期与远景的关系，在总体规划的知道下，合理选择方案，充分利用有利地形、地势，尽量回避不利地带，正确运用技术标准，从性车