Study On Maintenance Project Appraisals And Selection-Shaanxi Expressway Construction Group

The highway construction of our country has regarded expressway as the sign and entered a new stage of fast development. But, at present, a large number of expressways built in early days enter maintenance interval, it is strenuous to maintain the project day by day. Scientific maintenance project appraisals and selection on maintenance project have great realistic significance in meanings to maintain investment benefit and improving the management level of the project.According to qualification and situation analysis of the user's needs on the pavement in this paper, so as to establish expressway pavement Maintenance Require Index model and road User Cost Index model (MRI+UCI ), and carry on quantitative analysis of the concept of preventative maintenance, which offer the scientific basis for maintaining decision. Combine construction condition and technique of the producing of usage item evaluate a method to do an analysis to the possibility of technique to item of the highway engineering, the adoption contrasts a method in front and back to maintenance project to carry on a finance evaluation. Choose maintenance project of the pavement of the Xi'an-baoji expressway, carry on financial evaluation and national...