Through the research and analysis on the three aspects concerning the base interface of the pavement panel , crack accumulation , expansion in the pavement panel and interaction between spring plates on the road surface as well as its damage on the road fatigue , it is first brought forth that the process of fissures and breakage in the cement concrete pavement can be divided into three stages , i . e . stage of initial crack formation and damage in the bottom of the pavement slab , stage of accumulation , intensifying & expansion in ruptures from load during the time of use and stage of fissures & breakage in the pavement 通过对路面板底界面开裂、路面板中裂缝积聚、扩展和路面表面车板相互作用及其对路面疲劳破坏的影响等三个层面的研究和分析,首次提出水泥混凝土路面的开裂和破坏过程可以分为三个阶段,即路面板底初始损伤西南交通大学博士研究生学位论文第11页和早期裂缝的形成阶段、使用期间荷载作用对路面造成的开裂损伤累计、加剧和裂缝扩展阶段以及路面断裂破坏阶段。