柔性路面弯沉和路基压应变指标分析

分析了路表弯沉和土基顶面压应变对路面控制设计的不完全一致性，建立了路表弯沉和土基须面压应变的相关关系，在明确了设计弯沉和容许弯沉的概念后，利用路表弯沉和土基顶面压应变的相关关系式，并借鉴了AI法土基须面容许压应变方程，推导了旨在体现对土基顶面压应变进行控制的设计弯沉指标。

Analyis of deflection and compressive strain on the surface and the subgrade of flexible pavement

This paper analyzed incompatibility of surface deflection criteria and subgrade compressive strain criteria. The related exprssions between surface deflection and subgrade compressive strain is formulated by regression method. The concepts of design deflecion and pendssive dehon are clarified. The design deflection index to control subgrade compressive strain is introduced based on the relationship between surface deflection and subgrade compressive strain and on the compressive strain equation of AI designn method.