Study On The Pavement Structure Research Design Of Lhasa~gongga Airport Express

Our country is a vast territory,but only one criterion has been guide the asphalt pavement design。That causes some pavement designes are feasible and blind。Enormous numbers of material and money have been wasted for the conservation of pavement design or the roads could only be used few years for previous destruction because inapplicable construction of pavement design or insufficient depth of the road layers respectively。In this paper,a series of surveys on a section of a typical asphalt pavement highway of main way asphalt pavement in Tibet Province road condition,and damage reason areanalyzed。We get the traffic characters there。On the base of a series of surveys,and the fundamental of different soil grades producing the same effect on thickness of base course or bottom course,foundation classification is divided into 3 grades。The sensitivity analysis of design parameter of subgrade and pavement is design by the software Bisar, which are used to confirmed the degree of impact on working state with change of the design parameter。In the end, according to the asphalt pavement construction practice and traffic, naturalsituation and origin of material, submit the typical pavement structure on the basis ofappropriate structure in Tibet province,which will guide design and construction of asphaltpavement scientifically。...