大董湾至槐店乡二级公路_毕业设计论文.doc

摘要
大董湾至槐店乡二级公路地处江苏无锡地区,全长3000m左右。该设计首先根据远景设计交通量确定公路等级及相关技术规范和标准,并通过对当地地形、气候、水文、地质等资料的收集,并且在此基础上进行路线方案论证与比选,选择出合理的设计方案,确定了线路的平面布置;结合当地的具体情况以及本地区的未来发展计划,合理确定平曲线、竖曲线的半径及缓和曲线长度的选用;按照行车安全舒适、线形美观流畅的原则对平、纵线形进行了合理的组合,本路线有一段平曲线和一段竖曲线设置缓和曲线,其中平曲线设置了超高,无加宽。横断面设计严格按照技术标准及根据当地实际情况绘制,确定了路基宽度、高度及边坡坡度及路拱和超高,并且对路面结构层材料、排水等进行了设计。
本设计说明书较为系统地讲述了大董湾至槐店乡二级公路的设计方案、水文地质条件、原理及步骤,共设十一章。主要内容包括:工程概况、路线方案的拟订和选择、平面设计、纵断面设计、横断面设计、路基设计、路面设计、排水设计、概算,专题(边坡防护与加固)等。
关键词:二级公路;平面设计;纵断面设计;横断面设计;路基设计
ABSTRACT
Da Dongwa to Huai Dianxiang secondary road located in Wuxi city, Jiangsu province with a total length of 3000m. According to the design of highway traffic vision and determine the level technical specifications and standards,and based on the local terrain, climate, hydrology, geology, as well as data , based on route project argumetntation and selection to select the reasonable design scheme and determine the line layout; combined with local specific situation and the region's future development plan, then reasonable vertical plane curve, the curve radius and the length of the curve; according to the traffic safety fortable, the principle of linear beautiful fluent, the reasonable vertical alignment, its route has a Flat curve and a vertical curve set curve, flat curve set high, no widened. Cross-sectional design according to the technical standards and strict according to local actual condition,so we can determine the roadbed width, height and slope and road arch and high. And the pavement structure layer materials, drainage, etc.
The design manual systematically tells the design of the Da Dongwa to Huai Dianxiang Secondary Road scheme, hydrogeological conditions, principles and steps of ten chapters. Main contents include: engineering survey, route and choose the scheme design, graphic design, longitudinal and transverse design, roadbed design, design, drainage design, project budget (Slope protection and reinforcement), etc.
Keywords: Secondary Road;Planar Design;Longitudin