In order to investigate the road performance of semi-rigid base asphalt pavement based on solid waste,a three-dimensional finite element model of semi-rigid pavement structure based on measured parameters was established on the basis of the North Ring Road of Baotou China National Highway 110.Its mechanical response under the action of wave load was analyzed.The results of finite element simulation were compared with the allowable values.The results show that the stress and strain of the structure layer of semi-rigid pavement under fluctuating load are far less than the allowable value of the material.All the design indexes specified in the code meet the requirements.The mechanical properties of this kind of pavement are good and there is enough safety reserve.The research results can provide a theoretical basis for the material ratio,structure combination and parameter measurement of the same kind of pave-ment,and promote the wide application of solid waste materials.
关键词
固废利用/半刚性路面/动力响应/有限元
Key words
reuse of solid waste/remi-rigid pavement/dynamic response/finite element