摘要
从路面结构概念设计的角度分析土基对沥青路面结构设计的影响。通过典型的沥青路面结构,选用合适的路面结构参数,采用Bisar计算程序对路面结构进行力学分析。计算分析结果表明,随着土基回弹模量的增加,路面结构层的力学性能得到明显改善,路面的理论寿命也大为提高。还从提高土基回弹模量的角度,提出了优化沥青路面结构设计的一些方法。
The influence of earth subgrade onasphalt pavement structural design was analysedfrom the pavement conceptual design in the paper.Through a typical type of asphalt pavement,selecting appropriate pavement structureparameter, mechanics analysis was carried on thepavement structure by the BISAR pavement designsoftware.The result indicated that with the earthsubgrade rebound modulus increasing, thepavement structure performance has beenimproved distinctly and the pavement theory life hasbeen enhanced greatly.Otherwise, several methodsof optimization asphalt pavement structural designwere brought forward through improving earthsubgrade rebound modulus.
出处
《中国市政工程》
2009年第1期11-13,共3页
China Municipal Engineering
关键词
路面结构
土基
回弹模量
沥青路面
应力
应变
pavement structure
earth subgrade
modulus of resilience
asphalt pavement
stress
strain
