在旧水泥混凝土路面上加罩沥青层是一种改善其使用性能的有效措施，但其主要问题是沥青加铺层中将出现反射裂缝．国外虽尝试了许多防治反射裂缝的措施，但其防治效果在定量上很难一致．在我国，对这方面的研究和应用较少，且试用措施的防治效果并不显著，因此，不仅有必要设计 Adding asphalt over the old cement concrete pavement is an effective measure to improve its serviceability. However, the main problem is the reflective cracking in the asphalt overlay. Although a lot of measures to prevent reflection cracks have been tried abroad, its control effect is hard to quantitatively. In our country, there are few researches and applications in this area and the effect of trial control is not significant. Therefore, it is not only necessary to design