二级公路设计说明书

加漠公路（K232+625.183-K238）施工图设计

摘要

当今国民经济迅猛发展，公路基础设施成为国民经济建设中的最薄弱环节，出现了全面紧张的局面。20世纪末，中央将交通运输事业尤其是公路的发展作为国民经济发展的全局性、战略性和紧迫性任务，公路建设得以迅速发展。本次设计的加漠公路就是为了国家经济发展需求而建设的。

本项目经过对外业数据的整理和对当地地质情况、地形、地物、水文等自然条件的熟悉，依据《公路工程设计标准》（JTG D30-2004）、《公路路线设计规范》（JTG D20-2006）、《公路路基设计规范》（JTG D30-2004）、《公路水泥混凝土路面设计规范》（JTG D40-2011）等技术规范并应用纬地道路综合设计软件进行设计的，经过以下步骤最终完成设计：1.公路设计等级的确定；2.主要技术指标的确定；3.路线平面设计；4.纵断面设计；5.路基路面设计；6.小桥涵说明；7.交通工程及沿线设施设计；8.造价编制及分析；9.总说明书。

本设计为二级公路，本次设计中注意了平、纵线性的结合，尽量做到平面线形直捷、连续、顺畅，并与地形地物相适应，与周围环境相协调，保证施工图设计内容全面、科学、合理，既考虑了经济技术的可行性，同时也考虑了该工程对当地经济发展的作用和环境保护。

关键词路线；路基；路面；设计

The Design of The Second-class Road K232+625.183～K238 SectionFrom Jiagedaqi to Mohe

Abstract

With the rapid development of national economy, road infrastructure has become the weakest part in the national economic construction.There has been full of tension. After the 1990s, the central cause regards transportation, especially the development of the road as the overall, strategic and urgent task, so the highway construction develops rapidly. The design of Jia Mo highway is to meet the country's economic development needs of the construction.

The project after external industry data collation and familiarity with the local geological conditions, terrain, terrain, hydrology and other natural conditions, based on highway engineering design standards （JTG D30-2004）, "highway route design specification （JTG D40-2006）“The highway roadbed design specifications （JTG D30-2004）, "Asphalt Pavement Design specification （JTG D40-2011）and other technical specifications and application-wai, road design software to design, the final completion of the design through the following steps: 1. Highway design level determined; 2. Determination of the main technical indicators; Route graphic design; profile design; 5. Subgrade and pavement design; 6 small bridges and culverts Description; traffic engineering and facility design along;cost for the preparation and analysis; 9. Principal Brochure.

The design is the secondary road.It has paid attention to the level, the combination of the horizontal and longitudinal linear, and it is continuous, smooth, and compatible with the terrain as far as possible.The design is in harmony with the surrounding environment and ensures that the construction design is comprehensive, scientific and reasonable. Not only to consider the economic and technical feasibility, but also take into account the effect of the project on the local economic development and environmental protection at the same time.

Keywords route;subgrade;pavement;design