摘要
道路路基的强度直接影响路面的使用寿命,通过二者之间关系的探讨,对于不同压实度条件下的土基回弹模量进行换算。根据现行沥青路面设计规范拟定高速公路、二级公路、三级公路路面结构和交通参数,计算不同路基压实度条件下的道路承载能力,计算得知道路工程使用寿命与路基强度有着密切关系,计算结果认为每低于规定路基压实度1%路面的使用寿命缩短0.3～0.5年。
The service life of asphalt pavement is influenced by the strength of subgrade , this paper has discussed the relationship, calculated the modulus of elasticity of subgrade under different compacting conditions , and meanwhile , the pavement structures and traffic data of freeway, class II highway and class III highway are established according to currently asphalt pavement design specification, the pavement bearing abilities are calculated under different compacting conditions, and also a conclusion has been made that a close relation between service life and strength , the calculating results show that the compactness of subgrade cutting down 1% will lead to pavement reducing 0. 3-0. 5 years.
出处
《交通科技与经济》
2010年第1期93-95,共3页
Technology & Economy in Areas of Communications
关键词
公路
使用寿命
承载力
路基压实
沥青路面
highway
pavement service life
bearing ability
subgrade compactness
asphalt pavement.
