Design Idea and Technical Index of Highway Engineering Construction Access Road
At present,the design of road construction access is short of standards and specifications that can be used as a basis,and the design depth of the access is often insufficient.Especially in the construction of expressway in mountainous areas,most of the construc-tion access is built by the construction unit according to the terrain site,and there are generally problems such as excessive quantities of work,high cost and large ecological damage.In view of these problems,based on the summary of construction access design experi-ence and construction verification of several highway projects,the overall design idea of construction access is studied according to the classification of main access road,branch access road,access road and temporary bridge,and the main design indicators such as the plane design speed of access road,the minimum half diameter of circular curve,the maximum longitudinal slope,subgrade width and pavement structure are given.
NETL
NSTL
万方数据
