Study On High-Grade Asphalt Pavement Maintenance Management

Asphalt pavement with advantages of good mechanical strength, smooth ride, low noise and ease of construction of the mechanization, has become China's main highway pavement structure. However, the high-grade highway asphalt pavement general design lifetime is 15 years, the high-grade highway asphalt pavement constructed in our country in the late eighties and early nineties urgently need for maintenance and upkeep. In particular, in recent years, as China's rapid economic development, based on the advantages of asphalt pavement, asphalt pavement can be leap-type development. How to conduct disease management and conservation of maintenance in new or old asphalt pavement construction, to reduce the amount of further work to reduce the cost, placed in front of scientific research workers.In this paper, a large number of access to information based on pairs of high-grade highway asphalt pavement of the main diseases and the causes of a systematic theoretical research and analysis, and Liaoning Province as an example of a high-grade highway asphalt pavement, combining theory and practice, carried out Analysis of the causes of disease and diseases of its analysis and use of the corresponding measures.In the high-grade asphalt pavement performance, the use of performance evaluation of our current method is improved. In its evaluation index which the introduction of pavement rut depth condition evaluation index; in comprehensive evaluation which uses a weighted geometric average of the definition of PQI, reflected a number of indicators between the "indispensable to" the characteristics of effective way to avoid a weighted arithmetic average of less than; the determination of the index weight, the introduction of AHP to determine weights of indicators are more reasonable. Jiangsu in the final of a high-grade asphalt pavement of the measured data, for example, in adopting the use of performance evaluation model was tested and examples used to prove the use of performance evaluation model of the method in high-grade asphalt pavement maintenance performance evaluation on the feasibility sex.Finally, in the conservation decision-making optimization, adopted a 0-1 linear programming examples for the optimization analysis, financial and personnel constraints, established in order to maximize the benefits and conservation of the repaired using performance indicators to optimize the objectives PQI function, and through multi-objective 0-1 linear programming into a single-objective 0-1 linear programming model for calculating the enumeration method used for solving the obtained optimal Maintenance method.