基于性能分析的刚果(布)沥青路面结构优化研究  

Study on Structure Optimization of Asphalt Pavement in the Republic of Congo Based on Performance Analysis

作　　者：邓云纲[1] 王志勇[1] 吴福宝[1] 

机构地区：[1]中铁第四勘察设计院集团有限公司,湖北武汉430063

出　　处：《城市道桥与防洪》2015年第6期195-197,20,共3页Urban Roads Bridges & Flood Control

摘　　要：为了改善刚果(布)地区沥青路面的使用性能,延长路面使用寿命,采用增加沥青层厚度、增加级配碎石层厚度和增大路基回弹模量三种方案对路面结构进行优化。分析结果表明:采用荷载容许作用次数进行评价,增加沥青层厚度效果最优;采用车辙深度进行评价,增加级配碎石层厚度最优。综合考虑刚果(布)地区路面使用现状,本研究建议增加沥青层厚度以延长路面结构的使用寿命,增加耐久性能。In order to improve the performance and prolong the service life of asphalt pavement in the Republic of Congo, three kinds of schemes including increasing the thickness of asphalt layer, the thickness of graded broken stone layer and the resilience modulus of subgrade are used to optimize the pavement structure. The study result shows that the increasing effect of asphalt layer thickness is the best by using the load allowable time for evaluation, and the increasing thickness of graded broken stone layer is the best by using the rutting depth for evaluation. Considering the current situation of asphalt pavement applied in the Republic of Congo, the article proposes to increase the thickness of asphalt layer in order to prolong the service life of pavement structure and increase the durability.

关 键 词：沥青路面 结构优化 耐久性 

分 类 号：U416.2[交通运输工程—道路与铁道工程]