Genetic Algorithm In The Pavement Structure Is Dynamic, Anti-domain Analysis In Applied Research

Aims at facts that the vehicle of pavements are dynamic,a systemic study on the dynamic problems cause by FWD load of the pavement structure has been done in this paper, the main results are as follows:1 -, For the flexible road,considering the viscoelastic property of the asphalt layer,and using the Raleigh model ,a layered model is used to calculate the dynamic response in the time domain.The dynamic equation of the viscoelastic soil is derived,the Wilson method and the Newmark method are both used to solve the equation.The results which are verified by comparing with the results in references, show that the methods are right.2. based o n t he s ystem i dentification p rinciple,the genetics m ethod i s u sed t o adjust the parameters,a displacement depended inverse analysis of the parameters of the pavement structure has been done in the time domain.the validity of the method is verified b y s everal e xamples.Numericalresults s how t he m ethod i s o f good s lability and high accuracy,and reliable to identify the material properties.3 . The genetics method is reliable to multi-object optimization.