In view of the life-cycle assessment of concrete pavement, three-dimensional behavioral simulation was conducted by integrating constitutive laws for cracked/uncracked reinforced concrete, modeling of pore water inside cracks and multiyield surface plasticity for soil to investigate the fatigue life under high-cycle moving loads. Presented is a discussion that the balanced pavement requires thicker slabs than those required by current design codes on medium compacted soil foundations, but for too much looser foundation, it is over-designed, conversely. Then, a new design approach is proposed in terms of the slab thickness by considering nonlinear coupling with soil foundation. When the stagnant water exists on the slab with cracks, the numerical analysis shows the excessive pore water pressure in cracks at the upper layers of the concrete pavement. The engineering experience is proved such that the deterioration of concrete slabs is accelerated by water and the fatigue life is dramatically shortened compared to the dry situation.

中文翻译：

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干湿条件下移动荷载作用下混凝土路面疲劳寿命评估的多尺度模拟

针对混凝土路面生命周期评价，结合开裂/未开裂钢筋混凝土本构规律、裂缝内孔隙水建模和土体多屈服表面塑性，进行三维行为模拟，研究高强度下的疲劳寿命。循环移动负载。提出了一个讨论，即平衡路面需要比当前设计规范在中等压实土壤基础上需要更厚的板，但对于过于松散的基础，则相反，它是过度设计的。然后，通过考虑与地基的非线性耦合，提出了一种新的板厚度设计方法。当有裂缝的板坯存在滞水时，数值分析表明混凝土路面上层裂缝中孔隙水压力过大。