关键词: 水泥路面, 乳化沥青封层, 动荷载, 振动性能, 路用性能

Abstract: Several kinds of different thickness asphalt emulsion seal laid on the cement pavement are taken into consideration，and then the influence of the asphalt emulsion seal upon vibration performance of cement pavement under dynamic load is analyzed and calculated by ANSYS． The calculation and analysis results show that to add a filmy layer of asphalt emulsion seal on the cement pavement can effectively decrease the vehicle induction stiffness when vehicle running on the road，which can efficiently decrease the influenced range of the dynamic load effect on the road surface． On the whole，to add a filmy layer of asphalt emulsion seal on the cement road surface may have certain effect on improving the deformation and stress of cement pavement under dynamic load，but this effect is not obvious; along with the increase of the thickness of asphalt emulsion seal，the normal stress and shear stress of the bottom surface will be reduced，and the reduction is small in the early of the thickness change and bigger in the later of the thickness change．

Key words: cement pavement, asphalt emulsion seal, dynamic load, vibration performance, pavement performance