Method for building numerical simulation model of hydraulic engineering asphalt concrete

The invention discloses a method for building a numerical simulation model of hydraulic engineering asphalt concrete. The method includes steps of 1, manufacturing hydraulic engineering asphalt concrete test samples with a required mixture ratio, and actually measuring stress-strain curves of the various hydraulic engineering asphalt concrete test samples; 2, acquiring internal microstructures of the hydraulic engineering asphalt concrete test samples and building an initial numerical simulation model corresponding to the hydraulic engineering asphalt concrete test samples according to the internal microstructures; 3, using the stress-strain curves obtained in the step 1 as targets to adjust microcosmic parameters of the initial numerical simulation model by an optimization inversion process, enabling actually measured stress-strain curves to be matched with the stress-strain curves which are acquired by means of computation by the aid of the numerical simulation model so as to obtain the numerical simulation