路面竣工后弯沉实测标准探讨——以G312南京段为例

Standard on Flexure Measured in Field after Completion of Pavement Construction——Taking G312 Nanjing Section as an Example

针对现行的《公路沥青路面设计规范》中有关弯沉计算存在的问题,根据动态控制的观点,路面结构层的实测代表弯沉值应以其下一层的实测代表弯沉值为基础进行反算,并通过偏差分析,了解其层间接触状态,计算实际层底弯拉应力,预估其疲劳寿命。

In view of the existing problems about flexure calculation in the current "Highway Asphalt Pavement Design Norm",the flexure of pavement structural layer measured in the field should take the flexure measured of the next layer as the basis to do inverse calculation according to the viewpoint of dy-namic control.The variance analysis is done to analyze the contact state between layers so as to calculate flexure stress of actual layer′s bottom and predict the fatigue lifespan.