二级公路初步设计毕业设计论文.docVIP

湖南科技大学本科生毕业设计（论文） PAGE PAGE i 二级公路初步设计 摘 要 本设计为广水至曾都二级公路K0+000～K1+273.868段的初步设计。主要内容包括：平面设计、纵断面设计、横断面设计、路基设计、挡土墙设计、公路排水及防护工程、路面结构设计。 在设计过程中结合已知资料和文献，并严格按照规范标准设计。线形设计阶段，遵循选线原则对路线方案做深入、细致的研究，做到少占农田，并与周围环境相协调；纵断面设计根据道路等级，综合考虑了路线填挖平衡；在横断面设计中考虑公路等级、行车要求、自然地质条件，保证路基的稳定和排水。在挡土墙设计部分采用了重力式挡土墙，在公路排水及防护工程部分充分考虑到当地地质状况,环境景观以及驾驶员的舒适性等因素。在路面结构设计部分，对沥青路面和水泥混凝土路面进行了详尽的比较，最终采用沥青路面。 关键词：二级公路；平纵横设计；路基设计；挡土墙设计；路面设计 ABSTRACT This design studies the grade II highway from Guangshui to Zengdu which covers K0 + 000~K1+273.868.The main contents include:graphic design,alignment design,cross-sectional design,roadbed design,retaining wall design,road drainage as well as protective engineering and pavement strcture design. The design is in strict accordance with the code standard and consults related references.At the stages of alignment design,the author followed the model in choosing the line and tries to take up little land, and in harmony with the surrounding environment; longitudinal design according to the road grade, considering the balance of excavation; in the part of cross-sectional design, the design considers highway grade, driving requirements, and natural geological condition in order to guarantee the stability of roadbed and drainage.In the part of retaining wall design, the designer uses a gravity retaining wall; in the design of highway drainage and protective engineering, in view of the factors of local geology condition, environmental landscape, and the comfort of drivers. In the part of pavement structure design, after the comprehensive selection,the cement bituminous pavement was adopted in the design. KeyWords：The grade II highway; Flat freely design; Roadbed design; Retaining wall design;Pavement design 目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc326173038 第一章 工程概况及设计标准 PAGEREF _Toc326173038 \h 1 HYPERLINK \l _Toc326173039 1.1 公路沿线工程地质概况 PAGEREF _Toc326173039 \h 1 HYPERLINK \l _Toc326173040 1.1.1 路线走向 PAGEREF _Toc326173040 \h 1 HYPERLINK \l _Toc326173041