摘要
针对土工格栅抑制复合路面结构中反射裂缝扩展的问题,借助ABAQUS有限元软件,计算反射裂缝发展中不同阶段及不同轮压作用情况下的裂缝尖端应力强度因子KII,研究土工格栅反射裂缝扩展不同阶段下的抑制效果。结果表明,土工格栅在反射裂缝早期有一定的抑制作用,但随着裂缝的扩展,其抑制作用逐渐减弱,并据此给出实际工程改造的建议。
In order to solve the problem of the reflection crack by using geogrid in the road reformation of the composite pavement structure, with the aid of the finite element calculation software ABAQUS, the crack＇s tip stress intensity factor K. need to different stages and under different wheel pressures is calculated. The results of the studies of geogrid in restraining the reflection crack in different stages show that in the early stage, geogrid has somewhat restraint to the reflection crack, but with the extension of the reflection crack, its restraining function is reducing and here are some suggestions for practical reformation engineering.
出处
《安徽工业大学学报（自然科学版）》
CAS
2013年第3期297-300,共4页
Journal of Anhui University of Technology（Natural Science）
基金
住房和城乡建设部安徽省建设行业科学技术项目(2011YF-43)
关键词
复合路面结构
土工格栅
反射裂缝
应力强度因子
structure of composite pavement
geogrid
reflection crack
stress intensity factors
