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旧水泥混凝土路面加铺沥青面层是目前我国旧路改造的主要形式之一,但是由于受到行车荷载和温度应力的反复作用很容易出现反射裂缝。本文对设置玻纤格栅的加铺结构利用ABAQUS通用有限元软件进行行车荷载、温度荷载作用分析,通过对比有、无玻纤格栅情况下的力学指标,得出设置玻纤格栅能够有效延缓、防止反射裂缝的扩展,为旧路改造设计、施工提供依据。
The overlay of asphalt pavement on the old cement concrete pavement is one of the main forms of the old road reconstruction in our country at present. However, the reflection cracks are prone to occur due to the repetitive effect of driving load and temperature stress. In this paper, we use the ABAQUS finite element software to carry out the analysis of driving load and temperature load on the paved structure with fiberglass grating. By comparing the mechanical indexes with or without fiberglass grating, it can be concluded that the fiberglass grating can be effective Delay, to prevent the expansion of reflective cracks for the old road design and construction to provide the basis.