Abstract: Three-dimensional structure model with Winkler foundation situation was established considering interlayer contact. The effects of base modulus , thickness , interlayer contact situation between slab and base on the maximum stre岛s of slab and base , shear stress between slab and base , warping of slab were calculated. The results show that interlayer contact status has great influence on slab stress and warping. Maximum stress of slab bottom decreases while bonding status decreases , slab warping and warping scope increase obviously while bonding status decreases. Base modulus is the key factor for base stress. Maximum stress of base increases while modulus increases , and decreases while bonding status decreases. Interlayer shear stress occurs mainly at slab edge , and decreases while the bonding status weakens. It has no variation with the changing of base modulus and thickness.

Key words: road engineering, mechanical property, finite element, cement concrete pavement, base parameters

摘要： 建立了Winkler J也基上考虑层间接触条件的三维结构模型，计算了基层模量、厚度、层间接触状况对水泥由凝 土路面面层和基层受力、层间剪切应力及面层翘曲的影响。结果表明:层间接触状态对面层应力和翘曲影响较大， 随层间蒙古结状况的减弱，面层应力不断下降，但翘曲愈加显著，层间脱空范围不断扩大;基层模量是影响基层受力的 首要因素，基层底部最大应力随模量上升而增大，随层间勃结状况的减弱而降低;层间剪切应力主要发生在板边，随 层间秸结状况的减弱而变小，且几乎不随基层模量和厚度变化。

关键词: 道路工程, 力学性能, 有限元, 水泥泪凝土路面, 基层参数