Calculation And Analysis Of Pavement Structure Of Rural Roads

Rural roads are an important part of the road networks of our country,and are a kind of infrastructure that improves the economy and living conditons of people in the rural areas.Now the construction of rural road has reached a certain scale,and formed a network that connects thousands of villages.However,the rural roads has been damaged severely due to the relatively lower quality of rural road network,the weak and simple pavement structure layer as well as the increasing traffic load and the lag in road maintenance.Therefore,after a study of real traffic volume,it is of practical importance to conduct rural road pavement calculation and structure analysis to ensure the reasonableness of its design.The traffic volume and damage to roads with typical structure of rural roads are surveyed,and then the traffic volume is analyzed.The thesis makes a systematic study of the reasonableness of the structure of rural roads using mechanics analysis based on vector function in the hope to provide reference for future rural pavement structure design.The following works have been done:1.Investigation and measurement of the traffic volume of typical rural roads are conducted as well as a statistical study of the traffic structure.Then considering practical damage to the roads,the rationality of the structure of existing rural roads is analyzed.2.Analytical methods of road surface mechanics that based on vector functio n-based propagator matrix method is established,which is proved to be effecti ve after being compared with the result of BISAR.3.The pavement structural capacity is analyzed based on various road surfaces and their traffic volume and finally a pavement structure suitable for the present traffic volume is proposed.