Abstract: Taking classical mechanics as the reference system, taking the internal and external effects of force as the breakthrough point, taking vector field and physical equivalence as the basic path, this paper puts forward the research purpose of taking "stability" as the ultimate goal of asphalt pavement, studies and analyzes the four effects that affect the pavement stability, such as the size and shape effect of granular materials, the medium effect and interface effect of asphalt, and the force between granular materials under the load gravity field In this paper, the working mechanism and mechanism of compaction and wheel load on the gravity field of asphalt pavement are explored, and the concepts and models of load gravity field flux and potential energy, physical degree of freedom and stability of asphalt pavement system are proposed and defined, so as to clarify the physical effect and influence mechanism of granular material, asphalt medium and interface microstructure on the stability of asphalt pavement The theoretical system of "field action model" of asphalt pavement mechanics, which is composed of three models, is preliminarily constructed. This will undoubtedly bring a new understanding to the asphalt pavement theory.

Key words: asphalt pavement, mechanical model, vector field, field action, do work, degree of freedom

摘要： 文中以经典力学为参考系，以力的内外效应为切入点，将矢量场和物理等效作为基本研究路径，提出“稳定性”为沥青路面终极目标的研究宗旨。首先，研究了影响沥青路面稳定性的四大效应，即粒料的尺寸效应、粒料的形貌效应、沥青的介质效应、界面效应；其次，分析了荷载重力场下粒料间的力学行为与响应模式，探究了压实与轮荷作用对沥青路面的重力场做功机制；然后，提出了沥青路面系统的荷载重力场通量与场势能、物理学自由度与稳定度等概念及模型；最后，在基本廓清了粒料、沥青介质及界面微结构对沥青路面稳定性的物理作用与影响机理的基础上，最终初步构建由三大模型支撑的沥青路面力学的“场作用模型”理论体系。这无疑，将会对沥青路面理论带来全新认知。

关键词: 沥青路面, 力学模型, 矢量场, 场作用, 做功, 自由度