半刚性基层沥青路面反射裂缝机理分析  

Mechanism Analysis of Reflective Crack over Asphalt Pavement with Semi-rigid Base

作　　者：周建华[1] 

机构地区：[1]江苏省交通科学研究院,江苏南京210017

出　　处：《现代交通技术》2007年第1期4-7,共4页Modern Transportation Technology

摘　　要：在分析半刚性基层沥青路面反射裂缝成因的基础上,应用有限元方法计算了竖直荷载、水平荷载、层间粘结程度、面层模量以及基层模量等参数对裂缝尖端应力的影响,并讨论了土工格栅材料防治反射裂缝的效果,对沥青路面寿命评估以及反射裂缝的防治具有一定的借鉴意义。Based on the analysis of reflective crack over asphalt pavement with semi-rigid base, this paper analysed the effect of vertical load,horizontal load,bond grade between surface and base,modulus of surface and base on stress at crack tip by finite element method, the reinforcing effect of geogrid is also investigated.The research results could be taken as reference to asphalt pavement assessment and reflective crack prevention.

关 键 词：沥青路面 半刚性基层 反射裂缝 有限元方法 土工格栅 

分 类 号：U416.217[交通运输工程—道路与铁道工程]