摘要
半刚性基层沥青路面在修建过程中,由于路表面气温的变化及其他因素的影响很容易产生裂纹,这就出现了在温度梯度作用下,路面开裂后是否稳定的问题.本文探讨用脆性断裂力学研究这些问题,研究结果表明,路面结构产生裂纹后,温变梯度作用是引起裂纹继续扩展的重要因素.
Owing to the temperature variation and other factors,asphalt pavement on semi-rigid base produces cracks while it is built.In this paper,the stabilify of pavement with cracks is studied on the basis of the mechanics of brittle fracture.Results shown that the action of temperature variation and gradient is an important factor of the stability.
出处
《实验力学》
CSCD
北大核心
1992年第4期364-370,共7页
Journal of Experimental Mechanics
关键词
裂纹
热光弹法
路面
裂缝
稳定性
crack
thermal photo-elastic method
intersity factors
