基于横观各向同性倒装式沥青路面结构分析  

Analysis of Inverted Asphalt Pavement Structure Based on Cross-Anisotropy

作　　者：栗振锋[1] 王秉刚[2] 郭向云[1] 

机构地区：[1]太原科技大学交通工程系,山西太原030024 [2]长安大学公路学院,陕西西安710061

出　　处：《重庆建筑大学学报》2007年第1期65-69,共5页Journal of Chongqing Jianzhu University

基　　金：山西省交通科研基金(03-09)

摘　　要：基于所建的横观各向同性层状弹性体系解,分析了碎石材料横观各向同性特性对倒装式沥青路面结构的影响,分析结果表明,随着碎石材料水平模量的减小,路表弯沉和沥青层底拉应变是增加的,而半刚性基层底部拉应力和路基顶部压应变却是减小的。沥青面层的厚薄较为严重地影响路表面弯沉、沥青层底拉应变和路基表面压应变,碎石材料的横观各向同性特性对于稍厚一点的沥青面层的路面结构影响不是很大。Based on the established cross - anisotropic layered elastic theory, the effect of inverted asphalt pavement structure by granular cross -anisotropy is analyzed. The result shows that, with the decrease of granular horizontal elastic modulus, the pavement surface deflection and tensile strain at bottom of AC are increased, but the tensile stress at bottom of semi - rigid base and compressive strain at top of subgrade are decreased. The thickness of AC has significant effect on the pavement surface deflection, tensile strain at bottom of AC and compressive strain at top of subgrade, while the granular cross -anisotropy has little effect on the critical inverted pavement responses for the thicker AC.

关 键 词：碎石材料 倒装式沥青路面 ANISOLAYER程序 横观各向同性 

分 类 号：TU535[建筑科学—建筑技术科学]