A new load bearing capacity assessment method of the road pavement based on surface strain and the spectrum of the acceleration

Abstract Based on the coupling res model of vehicular and road, influences surface layer modulus, thickness equivalent modulus elasticity spectrum acceleration, deflection under wheels, strain at distance 0.4 m to 0.8 away from wheels are analyzed. Results show that fundamental frequency road pavement increases with growth elasticity, decreases increase thickness. Both deflections strains decrease as well Moreover, when is more than 2500 MPa 4000 MPa, have a little variation enhance elasticity. The solution method acceleration based established. load bearing capacity assessment provided. Finally, feasibility accuracy this verified by comparing measured values in field testing. paper provides theoretical support for design, construction maintenance engineering.