Performance Forecast And Optimal Maintenance Opportunity Determined Of Shanxi National And Provincial Main Line

This paper takes the asphalt pavement of national and provincial main line for study, evaluation index system of asphalt pavement were studied based on analysis of asphalt pavement performance, the influencing factors of asphalt pavement were determined, and the pavement ability predicting of road pavement management was established, the current commonly used method for determining the preventive maintenance timing of asphalt pavement were comparative analyzed, cost analysis method used to study the optimal preventive maintenance opportunity of asphalt pavement, the scientific of optimal preventive maintenance opportunity was determined combined with engineering application status, The main research contents including:(1)The service performance and evaluation index of asphalt pavement were systematic researched, the advantages and disadvantages evaluation index was proposed, the evaluation index system was determined based on SSI, RQI, PCI and SRI.(2)The influencing factors of asphalt pavement were determined, the pavement ability predicting of road pavement management was established based on previous years inspection data of asphalt pavement of national and provincial main line in shanxi province,which proved theoretical basis for decision of determining the preventive maintenance timing in shanxi province.(3)The conception and determination method of preventive maintenance period were proposed, the current commonly used method for determining the preventive maintenance timing of asphalt pavement were Comparative analyzed, cost analysis method used to study the optimal preventive maintenance opportunity of asphalt pavement.(4) With substantial projects as the basis,performance index were prediction analyzed used by the model, the optimal preventive maintenance opportunity of asphalt pavement was determined, which verified the applicability of evaluation system, prediction model and preventive maintenance opportunity established in this paper.