文档介绍：毕业设计说明书
邳州至新沂段二级公路设计
专业土木工程(道路桥梁)
邳州至新沂段二级公路设计
摘要:本设计为邳州至新沂段二级公路,,设计车速80km/h,路基宽度为12m。根据设计公路交通量及其使用任务和性质,确定了公路等级。根据技术标准,本着安全、经济、实用、美观的原则,对该路段进行设计。
此次毕业设计主要包括的内容如下:
:包括纸上选线、定线平曲线、直线设计等;
:包括拉坡、竖曲线设计等;
:根据公路等级,确定公路的路基宽度和路拱坡度等;
:包括各个桩号的填挖计算、填挖较大地段的稳定分析、整个线路的土石调运借配等;
:根据公路等级和设计规范,确定路面结构;
、路面排水设计:根据当地水文地质状况,对于路基排水,采用了边沟排水设施;对于路面排水,对路面进行了路拱设计;
:在填挖量较大的地段进行挡土墙设计,以保证土体的稳定性;
——软土地基的处理:本路线经过一段软土地基,为增大地基承载力,对软土地基进行了相应的加固措施。
关键词:路线;横断面;纵断面;路基路面;挡土墙;软土地基。
The design of a second-grade road from Pizhou to Xinyi
Abstract:In this design, the task is to design a second-grade road from Pizhou to Xinyi. The length of the road is speed of design is 80km/h and the width of the subgrade is to the given traffic volume,service level and attribute of the proposed road, the road is defined as the highway. According to the technical standarad and in a safe,economical,practical and aesthetic principles,this road has been designed .
The prime contents of the design project include:
design: includeing the paper select line, settle line, plane curve, straight line design etc;
design: including pull slope, the vertical curve design, etc;
-sectional design :Determining the width of the subgrade and road slope according to the level of the highway;
design of the subgrade, and the work involves a lot of items: the analysis of the stability of brae; the fill or dig height of every peg and so on;
design of pavement:Determining the pavement structure according to the level of the highway and designal specification;
design of the drainage project:According to the local hygrological geology condition,for subgrade drainage,adopting the ditches drainage facilities;for pavement drainage,carring on the road arch design;
design of retaining wall:Designing the retaining wall to ensure the stability of the soil ;
design of a special topic——so