论文总字数：19785字

摘 要

本次设计的道路位于安徽省宣城市，地处沿江丘陵平原区和皖南中低山区。此道路为一级公路，设计速度为80km/h。本次路线设计的起点桩号为K21 000，终点桩号为K26 500。路面设计计算中，基层拟采用半刚性材料，面层采用沥青混凝土进行设计。平面设计中本次路线共有一个交点，各项指标均满足规范要求，线形较好，行车舒适。纵断面设计中有三个变坡点，每个变坡点的各项指标均满足规范要求。

该道路的设计内容主要有路线设计，路基设计，路面设计。其中路线设计包括平面设计，纵断面设计，路基设计中包括路基横断面设计等。

关键词：路线设计，路面设计，路基设计，纵断面设计，横断面设计。

Construction Drawing Design of S322 Xuanjing Road Reconstruction Project (K37 600-K43 00) in Anhui Province

Abstract

The road designed this time is located in Xuancheng City, Anhui Province, in the hilly plain area along the Yangtze River and the middle and low mountainous areas in southern Anhui. This road is a first-class road with a design speed of 80km/h. The starting point of this route design is K21 000, and the ending point is K26 500. In the calculation of pavement design, semi-rigid materials are proposed for the base course, and asphalt concrete is used for the design of the surface course. In the graphic design, this route has an intersection, all indicators meet the requirements of the specification, the line shape is better, and the driving is comfortable. There are three variable slope points in the longitudinal section design, and each index of each variable slope point meets the requirements of the specification.

The design content of the road mainly includes route design, roadbed design, and pavement design. The route design includes graphic design, longitudinal section design, and roadbed design including roadbed cross section design.

Keywords: route design, pavement design, roadbed design, longitudinal section design, cross section design.

目 录

摘要……………………………………………………………………………………………………………Ⅰ

Abstract………………………………………………………………………………………………………Ⅱ

1. 引 言………………………………………………………………………………………………1

1.1该公路修建目的及背景…………………………………………………………………………1

1.2该公路自然地理条件………………………………………………………………………………1

1.3主要技术指标的论证和确定………………………………………………………………………1

第二章 路线设计……………………………………………………………………………………………3

2.1路线的确定……………………………………………………………………………3

2.1.1路线方案的要点……………………………………………………………………………3

2.1.2.路线方案的确定……………………………………………………………………………3

2.2平面设计……………………………………………………………………………………………4

2.2.1直线曲线及转角计算………………………………………………………………………4

2.2.2平曲线要素计算……………………………………………………………………………5

2.3纵断面设计…………………………………………………………………………………………7

2.3.1确定纵断面设计参数………………………………………………………………………7

2.3.2竖曲线要素计算……………………………………………………………………………8

2.2.3设计高程计算………………………………………………………………………………10

第三章 路基设计……………………………………………………………………………………………11

3.1路基横断面设计……………………………………………………………………………………11

3.1.1公路路基横断面类型………………………………………………………………………11

3.1.2横断面高加宽设计…………………………………………………………………………12

3.2路基土石方计算和调配……………………………………………………………………………13

3.2.1土石方数量…………………………………………………………………………………13

3.2.2土石方处理…………………………………………………………………………………14

3.3特殊路基处理………………………………………………………………………………………14

第四章 路面设计……………………………………………………………………………………………16

4.1设计依据……………………………………………………………………………………………16

4.2沥青路面结构数量…………………………………………………………………………………16

4.2.1交通量数据…………………………………………………………………………………16

4.2.2标准轴载及轴载当量换算…………………………………………………………………19

4.2.3路面结构设计与验算………………………………………………………………………21

4.2.4路面结构确定………………………………………………………………………………24

致谢……………………………………………………………………………………………………………25

参考文献………………………………………………………………………………………………………26

附录……………………………………………………………………………………………………………27

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