Numerical Simulation Of Force Characteristics Of Asphalt Pavement In Port Area

Port as a global transport hub plays for the world transport system plays a very important role and port roads as a vital role in port development,so the study of port roads is essential.Due to the uniqueness nature of the harbor road:the overloading vehicles and the slower speed,more port road be found that pavement early damage phenomenon is serious in using process.And the existing road research is limited to the port road.Therefore,in this paper,according to the characteristics of port transportation to port the stress state of asphalt roadbed and rut deformation conditions are analyzed.Based on the analysis of the classification,the pavement type,the surface layer type and the residual sedimentation value calculated in the port area,this paper uses the numerical simulation method of the Dalian Dayao Bay Bonded Port area,which is characterized by a new generation port.And the stress analysis of asphalt pavement in port area was studied.The mechanical response of the tire pressure,axle load,middle layer and base modulus and thickness to the pavement structure is considered when analyzing the force characteristics of the asphalt pavement structure in the port area.The results show that the maximum compressive stress and the maximum shear stress are applied to the surface layer of the pavement,and the base layer is the critical position of the compressive stress conversion.The maximum shear stress increases and the maximum shear stress increases,and the maximum shear stress decreases.The thickness of the pavement and the thickness of the basement have no effect on the maximum shear stress of the pavement structure,while the opposite layer And the base layer of the normal stress has a significant impact.In this text,the ABAQUS software is used to analyze the rupture phenomena of asphalt pavement in Hong Kong under different temperature loads.By analyzing the cyclic deformation,the process of pavement rutting is analyzed.The results show that the deformation rate increases with the increase of the number of loading loads,but the deformation rate decreases gradually.Under the high temperature condition,the deformation speed of the asphalt pavement in the port area is much higher than that in the low temperature The destruction of the problem has a significant impact.