作　　者： ; ; ;

机构地区： 东南大学交通学院

出　　处： 《南京工业大学学报（自然科学版）》 2006年第6期47-51,共5页

摘　　要： 采用ABAQUS软件进行了多年冻土地区不同沥青路面结构响应分析。分析结果表明,路基融沉深度决定了路面位移的大小,路面结构形式对路面位移影响不大,而路面基层底部拉应力主要受路面结构形式影响。随着融沉深度增加,路面位移显著增加。级配碎石基层路面层底拉应力最小,沥青稳定基层路面层底拉应力与其相当,而半刚性基层路面层底拉应力最大。考虑到级配碎石基层的强透水性、低抵抗重载交通能力等缺点,提出沥青稳定基层更适合于多年冻土地区。 Asphalt pavement structure in permafrost regions was analyzed using ABAQUS software,analysis results showed that pavement displacement was mainly decided by subgrade thaw depth and the influence of pavement structure types on it was little.However the tensile stress of base bottom was greatly affected by pavement structure types.With increase of thaw depth pavement displacement markedly increased.The tensile stress of graded crushed rock base pavement was minimal and that of semi-rigid base pavement was maximal.For large permeability and small anti-heavy traffic ability of graded crushed rock base,it was proposed that asphalt stabilized base pavement was much more suitable for permafrost region.

关 键 词： 路面结构 响应分析 软件 多年冻土 沥青稳定基层

领　　域： [交通运输工程]