在旧水泥混凝土道面上采用沥青薄层盖被是一种较好的维修手段 ,当飞机采用双机或四机起飞时 ,机轮就会作用在薄层结构上。此时 ,薄层处于最不利的状态 ,薄层结构破坏主要是剪切破坏。影响剪应力的大小主要是薄层的厚度和薄层与水泥混凝土道面的结合程度。在此段进行薄层设计时 ,要进行抗剪强度的验算 The use of a thin layer of asphalt over the old cement concrete pavement is a better method of maintenance. When the aircraft takes off in two or four aircraft, the wheels act on the thin layer structure. At this point, the thin layer in the most unfavorable state, the main failure of the thin layer structure is shear failure. Affect the size of the shear stress is mainly the thickness of the thin layer and the degree of bonding of the thin layer and the cement concrete pavement. In this section for thin-layer design, the shear strength to be checked