Construction Practice of Centralized Maintenance Mode for Asphalt Pavement of Expressway

Abstract At present, one of the most prominent problems in Jiangsu Expressway Maintenance Project is the contradiction between maintenance operation and traffic. Based on the centralized maintenance project of Guangjing Xicheng Expressway in Jiangsu Province, this paper analyzes and summarizes the centralized maintenance mode from two aspects: the preparation points and the control in the construction process. The practice of this project shows that the centralized maintenance project needs to focus on the characteristics of multi-dimensional concentration of time, space and material, make targeted preparation from the aspects of organization, human, machine, material, technology and emergency plan, and ensure multi-directional control through summary and improvement, multi-party coordination, dynamic control, construction standardization and a series of measures in the implementation process. Compared with the traditional maintenance mode, the centralized maintenance mode makes the maintenance project better in quality, faster in progress, more controllable in safety and better in benefit. The research results provide important practical experience for similar projects.