路面使用性能的标准衰变方程

在路面工程中，路面使用性能衰变规律是一个十分基础、十分重要的问题，文中在分析国内外路面使用性能衰变研究的基础上，将路面性能衰变过程划分４种典型模式，提出了能够描述这４种模式的的通用方程，据此，可用两个简单的数字特征准确表示一条路面使用性能衰变曲线。由于这两个特征具有明确的数学、物理含义，故可通过对这两个数字特征的对比分析，很方便地定量研究交通、环境、结构和材料等因素对路面使用性能的影响，分析它们的

General Deterioration Equation for Pavement Performance

The deterioration law of pavement performance is a fundamental and important problem for pavement designs and pavement researches. Therefore, in order to describe pavement deterioration exactly and study effects of various factors such as pavement structural combinations, environmental conditions and pavement material properties, on pavement performance, this paper divides pavement deterioration courses into four modes, and has developed a general pavement performance equation which can exactly describe four deterioration modes on the basis of analysing the results of existing pavement long-term performance studies. Based on the equation, any pavement performance curve can be represented using a, g, two figure features with clear significance in mathematics and physics. By comparing a, P s corresponding to different pavement structures, different traffic levels and different regions, it is very convenient to quantitatively analyse the effects of various factors on pavement performance.Therefore, the results of this paper provide a basis in theory to further pavement performance studies.