Research On Qinghai Expressway Cost Index System

From the "Eleventh Five-Year Plan" to the present,Qinghai Province ’s highway transportation infrastructure construction has completed a total of 167.3 billion yuan of investment,and the highway mileage has reached more than 4,000 kilometers.However,as a western economically underdeveloped region,Qinghai Province ’s highway construction funds have been issued.Most of them rely on the central government ’s car purchase tax subsidies,and the remaining part needs to be self-raised in the province,which makes the original financial tension more serious.According to the statistics of the approval of the construction cost of 21 highways in Qinghai Province from 2009 to 2019,it was found that The "three super" phenomenon is more serious;in order to make better use of the central government’s car purchase tax subsidy funds,reduce Qinghai’s financial pressure,and better use limited funds to build high-standard,high-quality highways,this article uses the existing Qinghai Province Expressway On the basis of highway construction project cost data and economic indicators of engineering volume,a highway engineering cost index suitable for the alpine and high altitude climatic conditions and engineering geological conditions of Qinghai Province was established,and a cost index system suitable for the overall process cost management of Qinghai highway was created.The design features,construction features and cost levels of expressways in different areas of Qinghai Province are analyzed,and the technical and economic index system of typical expressway structures is constructed.Through longitudinal and horizontal analysis and sensitivity analysis of the index system,The following research results:First,this article summarizes the characteristics of the highway construction project in Qinghai Province,analyzes its impact on the cost through the situation of these characteristics affecting the cost,and proposes the content and method of collecting cost data to establish a cost database.Secondly,the methods,objects and steps of the sensitivity analysis of the construction of the index system are introduced.The design,construction,and cost characteristics of sub-projects on the Qinghai Expressway are analyzed,and practical and reasonable selection principles and methods are proposed.Thirdly,the construction of the index system is analyzed theoretically,the construction principle and method of the highway engineering cost index system are proposed,the highway engineering cost index system is constructed,and the analysis is carried out in combination with the highway cost data of Qinghai Province.Fourth,based on the 21 highway expressway approval cost data that has been completed since 2009,the Internet technology is used to establish a highway engineering cost database in Qinghai Province.The highway cost index is selected for comparative analysis,and Qinghai is summarized through vertical and horizontal comparative analysis.Provincial expressway cost characteristics and laws.Finally,using the actual cost data,the sensitivity of the Qinghai Expressway project cost system was analyzed,and the sensitivity indicators of the total cost index and the construction and installation cost index were studied.The research results were evaluated by the Qinghai Provincial Transportation Cost Management Department.The auxiliary application in the early stage cost review of the expressway can play a role in the early warning of the difference in the sub-indices,the guidance and control of the total cost index,and the construction and installation cost index,which can achieve a certain degree of cost saving and control the cost of highway construction The role of.