本研究中採用三維有限元素鋪面結構為分析模式，探討A-7-5凝聚性路基土壤在不同含水量、非均佈荷重、材料非線性、覆土應力對鋪面的影響。並續用前人將輪胎模型模擬成輪胎與鋪面表面的接觸應力分佈，再針對材料非線性以及覆土應力在路基土壤不同含水量作用下，分析不同打氣胎壓與單軸雙輪載重作用下鋪面的反應，再由前人之研究作進一步之分析，且應用於AI設計方法之車轍及疲勞龜裂模式理論，分析鋪面績效之影響。

This study used the 3-dimensional finite element model to analyze pavement response under traffic loading. A-7-5 cohesive soil was analyzed to find out the effects of water content, non-uniform load, nonlinear properties of material and earth stress on flexible pavement. An analytical model was used to simulate contact stress distribution between the tire and surface. The effect of tire pressure on pavement structure under traffic load was observed, based on nonlinear properties of material and earth stress. The rutting and fatigue crack model by application of AI design method was used to analyze the influence of the performance of pavement.

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