甘肃黄土地区高等级公路沥青路面典型结构研究

【作者】 杨永红；

【导师】 王选仓；

【作者基本信息】 长安大学 ， 道路与铁道工程， 2002， 硕士

【摘要】 本文基于甘肃黄土分布、工程地质及路用特性研究，对该黄土地区在建和已建的全部高等级公路交通状况进行了详细调查和分析，划分了交通量等级；对甘肃黄土地区代表性的高等级公路，利用三种不同方法实测了土基回弹模量，分析了各测试方法的相关性，建立了相关关系，对土基回弹模量进行了强度等级划分；通过室内外试验比较，推荐了常用的半刚性材料和沥青混凝土设计参数值；利用计算机编制了基于改进遗传算法的优化设计程序AGA—LQ，并成功求解了沥青路面结构非线性优化设计模型；最后经计算提出了甘肃黄土地区高等级公路沥青路面典型结构，并编制了查询图库软件CX—LQ，供设计单位直接选用，科学简便地解决了甘肃黄土地区的路面设计问题。研究成果对改善甘肃黄土地区的路面设计方法，降低工程造价，避免和减少工程病害，乃至对我国路面设计方法的发展均将发挥积极的作用。更多还原

【Abstract】 On the basis of the loess distribution, engineering geology and specific properties of road use in GanSu province, this paper divides traffic volume grade according to the conditions of transportation of all high-grade highways which are being built and have already finished. Besides, it analyses the relativity of three different test methods, establishes the related relations, and divides their strength grade after measuring rebound module of subgrade of the representative high-grade highways in GanSu loess area. Furthermore, it recommends the common semi-rigid and asphalt concrete design parameters by comparing the experiment in doors to outdoors, and draws up the optimized design program AGA-LQ based on advanced genetic algorithm and solves the non-liner optimization design model of asphalt pavement construction by computer. Finally ,this paper puts forwards to the typical constructions of high-grade asphalt concrete highways in GanSu loess area, and works out the search diagram data software CX-LQ, providing to design unites to directly choose to use, so as to solve the problem of rode design with scientific and simple means in this area. The research result will improve the design method in GanSu , lower the engineering cost ,and avoid and reduce the engineering diseases. Besides , it will even play an active role in rode design method of our country.更多还原