基于FLAC3D数值模拟的基层水泥含量对反射裂缝影响研究  

Effect of Cement Content on Reflection Crack Based on FLAC3D Numerical Simulation

作　　者：郑大为[1] 焉妮[1] 郝连学 

机构地区：[1]辽宁工程技术大学土木与交通学院,阜新123000 [2]阜新市公路管理处,阜新123000

出　　处：《硅酸盐通报》2017年第4期1371-1376,共6页Bulletin of the Chinese Ceramic Society

摘　　要：为了解决半刚性基层容易产生反射裂缝的问题,提出适合辽宁地区的抑制反射裂缝效果最佳的路面结构。以抚顺市某省级道路工程实例为研究对象,采用温缩试验以及有限差分数值软件FLAC3D,对温度荷载作用下的沥青混凝土路面及其路基进行数值模拟,分析其力学性能,并进行试验路的铺筑,经对比研究后得出结论为采用级配碎石上基层结构来抑制反射裂缝效果较好。该结论可为道路设计、施工及沥青路面车辙病害治理等工程人员提供参考,具有一定社会效益及经济效益。To solve the problem of the semi rigid base course, which was easily to produce reflection cracks and set out the pavement structure which was suitable for Liaoning area. This paper taked the example of a municipal road in Fushun city as the research object, using temperature shrinkage test and finite difference numerical software FLAC3D, and researching and analyzing on the mechanical properties of asphalt concreted pavement under the action of temperature load then paving the test road. The results show that the suppression of reflection cracking effect of graded broken stone is better. The conclusion can provide reference for road design, construction and management of asphalt pavement rut engineering personnel, which is a certain social and economic benefits.

关 键 词：水泥含量 反射裂缝 温缩试验 温度应力 级配碎石 低水泥稳定碎石 

分 类 号：X703[环境科学与工程—环境工程]