资料简介： Abstract: A linear full 3D finite element method (FEM) was performed in order to present the key designparameters of highway tunnel asphalt pavement under double-wheel load on rectangular loaded area consideringhorizontal contact stress induced by the acceleration/deceleration of vehicles. The key design parameters arethe maximum horizontal tensile stresses at the surface of the asphalt layer, the maximum horizontal tensilestresses at the bottom of the asphalt layer and the maximum vertical shear stresses at the surface of the as-phalt layer were calculated. The influencing factors such as double-wheel weight; asphalt layer thickness; basecourse stiffness modulus and thickness; and the contact conditions among the structure layers on these keydesign parameters were also examined separately to propose construction procedures of highway tunnel asphaltpavement.
& ~8 V+ D) K( n3 M6 L ~+ v, e Key words: tunnel asphalt pavement structure; three-dimensional finite element method; horizontal force;horizontal tensile stress; vertical shear stress摘要：一种线性全三维有限元法（ FEM ）被应用于公路隧道在双车轮装载矩形面积考虑横向接触应力诱导加速/减速的车辆作用下关键参数的设计。关键设计参数是被计算的作用在沥青层表面的最大横向拉应力，沥青层底部最大横向拉伸应力和沥青层表面的最大垂直剪应力。影响因素如双车轮重量;沥青层厚度;基层刚度模量和厚度;以及之间的联系结构层对这些关键的设计参数，还应单独审查以提出建设公路隧道沥青路面。9 p! z# {& a% t9 R: \, a
关键词：隧道沥青路面结构的三维有限元法;横向力;横向拉应力;纵向剪应力
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