Research On The Method Of Expressway Pavement Structures Lane-at-a-time Design

On the supervision of vice professor Yang Chunfeng,this paper selected 揜esearch on the method of Expressway Pavement Structures Lane-at-a-time Design?as the subject of dissertation for Master Degree. It has important practical value.At first ,the pavement disease on the earlier expressways is investigated and analysed.Secondly, according to the specifications for design of highway asphalt pavement,the traffic volume and the transverse distribution factor are researched.On the basis of these research,the method of expressway pavement structures lane-at-a-time design is offered to design the overtaking lane,carriageway and hard shoulder.At the same time,some problems such as longitudinal crack and mechanical execution which probably caused by the new method are analysed and several initial solutions are offered. Then,the lane-at-a-time design is compared with the normal way,the result of the method of expressway pavement structrues lane-at-a-time design is millions construction cost can be saved.Finally,the future of the lane-at-a-time design is predicted.