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※※※※本科毕业设计

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本科毕业论文

题目：

本科毕业论文（设计）

贵州省***三级公路两阶段施工图设计

系 院：建筑工程系 学生姓名：※※※※ 学 号：※※※※ 专 业：土 木 工 程 年 级：※※※※ 完成日期：2011.05.16 指导教师：※※※※

毕业设计

摘 要

贵州省**三级公路两阶段施工图设计依据公路的交通量及其使用任务和性质，最终确定公路等级及路线。在设计过程中结合沿线自然条件与主要技术指标的应用，并及时查阅道路设计规范，进行路线方案论证与比选，确定合理的设计方案。经过各种技术指标比较确定一个最佳方案进行详细技术设计，设计内容包括：路线的平、纵、横设计，路基路面设计（含排水设计、挡墙设计），施工组织安排,安全技术措施和文明施工方案。 同时采用纬地道路软件及各种文档软件绘制编写各种图、表及设计说明书。

关键词：三级公路；平、纵、横设计；路基路面；排水, 施工组织设计

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毕业设计

Abstract

Jianhe County of Guizhou Province - Road Tianzhu county levels based on a two-stage construction design and use of road traffic volume and nature of the task to finalize the road grade and alignment.In the design process along with the natural conditions and the application of key technical indicators, and timely access to the road design specifications, the line demonstration and comparison programs, determine a reasonable design.After comparing a variety of technical indicators to determine the best program detailed technical design, design elements include: the flat line, vertical, horizontal design, Pavement design (including drainage design, retaining wall design), construction of organizational arrangements, technical measures and securitycivilized construction program.Latitude to use the road while the software and various documents prepared by a variety of software to draw graphs, charts and design specifications.

Keywords: tertiary roads; flat, vertical and horizontal design; Pavement; drainage, construction design

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※※※※本科毕业设计

目 录

1 绪论.............................................................................................................................. 7

1.1 公路工程所涉及的问题在国内的研究现状................................................... 7

1.1.1 我国公路发展现状................................................................................ 7 1.2 公路设计目的及任务....................................................................................... 8

1.2.1 道路构造................................................................................................ 8 1.2.2 我国公路发展的特点............................................................................ 8 1.2.3 我国公路交通发展趋势........................................................................ 8 2.1 工程概况........................................................................................................... 9 2.2 地形地貌及地质水文情况............................................................................... 9 2.3 公路等级及其主要技术指标的论证和确定................................................. 10

2.3.1 交通量计算.......................................................................................... 10 2.3.2 确定道路等级...................................................................................... 11 2.3.3 主要技术指标的论证和确定.............................................................. 11 3.1. 选 线.............................................................................................................. 14

3.1.1 山地丘岭区公路路线特点.................................................................. 14 3.1.3 确定公路线路走向的基本原则.......................................................... 15 3.1.4 本路线设计的特点.............................................................................. 15 3.1.5 本路线设计中值得注意的问题.......................................................... 16 3.1.6 路线方案的比选.................................................................................. 16 3.1.7 路线要素初步计算及方案比选.......................................................... 17 3.2 路线平面设计............................................................................................... 20

3.2.1 公路平曲线各设计要素的精算.......................................................... 20 3.2.2 平曲线细部点的确定.......................................................................... 27 5.1 横断面组成..................................................................................................... 44 5.2 边沟设计......................................................................................................... 44 5.3 平曲线加宽值计算......................................................................................... 44 5.4 平曲线超高计算............................................................................................. 46 5.5 视距验算......................................................................................................... 48 6 路基设计.................................................................................................................. 49

毕业设计

6.1 路基横断面设计............................................................................................. 49

6.1.1 填方路基.............................................................................................. 50 6.1.2 挖方路基.............................................................................................. 50 6.2 路基排水设计................................................................................................. 50

6.2.1路基设计的基本原则........................................................................... 51 6.2.2排水设计............................................................................................... 51 6.2.3 排水的意义.......................................................................................... 52 6.3 路基防护设计............................................................................................... 52 6.4路基稳定性验算.............................................................................................. 53

6.4.1 路堤稳定性验算设计参数.................................................................. 53 6.5 挡土墙设计..................................................................................................... 55

6.5.1 挡土墙设计资料.................................................................................. 55 6.5.2 墙后土设计计算.................................................................................. 56 6.5.3验算....................................................................................................... 59 6.5.4挡土墙布置........................................................................................... 62 6.6 路基路面设计................................................................................................. 62

6.6.1沥青碎石混合料路面设计................................................................... 62 1.轴载分析..................................................................................................... 62 6.6.2 结构组合与材料的选取...................................................................... 70 6.6.3各层材料的抗压模量与劈裂强度....................................................... 70 6.6.4土基回弹模量的确定........................................................................... 72 6.6.5设计指标的确定................................................................................... 72 5.2.7 确定二灰沙砾层厚度.......................................................................... 73

7 路基排水设计............................................................................................................ 75

7.1 基本要求......................................................................................................... 75 7.2 设计路基排水设施......................................................................................... 75 8 施工组织设计............................................................................................................ 76

8.1 编制说明......................................................................................................... 76

8.1.1 编制依据.............................................................................................. 76 8.2 工程概况......................................................................................................... 77

8.2.1 概述...................................................................................................... 77

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