摘要
在我国沥青路面设计规范中提供了级配碎石的设计参数,由于该参数是低等级道路和生产工艺的总结,取值较低,制约了我国路面结构的多样化发展。通过对典型路面结构的应力分析,总结了含级配碎石基层沥青路面的特点;采用三轴试验、循环加载试验和4个省区的试验路对处于各个层位的级配碎石的弹性模量进行了大量研究,通过对大量数据的分析总结,推荐出了与石料的生产和施工工艺相匹配的各层位的设计参数取值范围,并于国外的方法进行的对比。
Bitumen pavement design specification provides the design parameters of aggregate macadam, because the parameters are based on low-grade roads, the values are relatively lower, which restrict the development of pavement struc-tures in China. Stress characteristics of typical bitumen pavement structures with graded macadam base are analyzed, through triaxial tests, cyclicload tests and observation of the test roads in four provinces, resilient modulus of macadam in every layer is calculated. The design parameters of grade macadam base are recommended and compared with other countries.
出处
《公路交通科技》
CAS
CSCD
北大核心
2006年第8期22-27,共6页
Journal of Highway and Transportation Research and Development
基金
交通部优秀青年专业技术人才专项经费资助项目(95050510)
关键词
基层
级配碎石
设计参数
弹性模量
base
grading macadam
design parameter
modulus of elasticity
