采用三维有限元分析方法对目前最常见的用于冲击破碎的四楞、五楞压路机冲击破碎旧水泥混凝土路面板的力学破碎效果进行了对比分析,研究了两种冲击压路机对路面板变形、路面板受力、路面板破坏和基层受力的影响。研究发现同样冲击能量下,由于冲击轮形的不同,四楞冲击压路机破碎效果优于五楞压路机。 Three-dimensional finite element analysis is used to analyze the mechanical crushing effect of impact crushing old cement concrete pavement panels, which are most commonly used for impact crushing of four-flute and five-flute compactors. The effects of two kinds of impact rollers on the deformation of pavement panels, The force of the panel, the destruction of the pavement and the force of the grassroots. The study found that the same impact energy, due to the different impact wheel shape, four shock impact crusher crushing effect is better than five-bladed roller.