Abstract: Through the investigation and analysis to the old bitumino us pavement stabilized soil thin-base course in Qingyang area of Gansu, and the checking calculat ion and comparison to the experimental road, the stabilized soil thin-base course is a feasible pavement structure style and can bring down the cost of the basement greatly.It has remarkable economic benefit; the prospect of popularizing the stabilized soil-thin basement of bituminous pavement is very well.

Key words: bituminous pavement , stabilized soil thin-base course, elastic modulus, pavement surface course deflection

摘要： 通过对甘肃庆阳地区的老沥青路面稳土薄基的调查分析,和铺筑实验路的检测计算和比较,稳土薄基是一种可行的路面结构形式,并且可以大幅度降低路面基层造价,具有显著的经济效益,沥青路面的稳土薄基推广前景较好.

关键词: 沥青路面, 稳土薄基, 回弹模量, 路面表面弯沉