文档介绍：摘要
本毕业设计的题目是:山西太原老虎沟道路工程。
对交通量进行了分析,查找相应技术规范,确定公路的等级以及设计需要的各种参数。确定采用二级公路的技术指标进行设计。设计所采用的设计车速为:平原微丘区80㎞/h。。路线设3个平曲线交点,交点桩号分别是K0+,K2+,K3+。曲线半径分别为2500m,2600m,2700m。竖曲线3个,其中两个凸形竖曲线,一个凹形竖曲线。路线高低起伏不大,%,满足最小纵坡的排水要求。
路线填挖基本平衡。路面采用沥青混凝土路面,本设计沥青路面设计理论以弹性层状体系理论为基础。路基排水设计要因地制宜,全面规划,充分利用有利地形。设计中还对一处跨线桥进行了方案比选,最终选定预应力混凝土连续梁桥。,分3跨,跨径为40m。设计中采用多种工程软件进行精确计算来优化设计,设计图纸采用CAD系统绘制。
通过这次设计不但了解建设公路的各个步骤,而且也能熟练的运用AUTOCAD进行制图。
关键词:二级公路; 平曲线;竖曲线;路面;方案比选
Abstract
This graduation project topic is: Shanxi Taiyuan tiger trench road project.
Has carried on the analysis to the volume of traffic, search corresponding technical specifications, highway to determine the levels of need and the design of the parameters .The design uses the design vehicle speed is: Plain small then mound area 80KM/h. This location total length this . The route supposes 3 plane curves points of intersection, the point section respectively is K0+, K2+, K3+ curve radius respectively is 2500m, 2600m, 2700m. Vertical curve 3, two crest vertical curve, a sag vertical curve. The route height fluctuation is not big, most is small slope is %, satisfies the smallest slope draining water request.
The route fills in digs the basic balance. The road surface uses the asphalt concrete road surface, this design bituminous pavement design theory take the elastic layered system theory as a foundation. The sub grade drainage design must act as circumstances permit, overall planning, full use advantageous terrain. In the design also carried on the plan to pared to elect, finally designated the cable-stayed bridge. The entire bridge length , are divided 3cross, the span is 40m. In the design uses many kinds of projects software to carry on precisely calculates optimizes the design, the design paper uses the CAD system plan.
This design not only to understand the various road-building steps,but also skilled in the use of AutoCAD.
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