Macro-meso parameter calibration of the contact model is the key to successful use of the discrete element method. Linear contact model and rolling resistance linear contact model in the discrete element contact model can be used to simulate the mechanical behavior of sand

and the rolling resistance linear contact model has advantages in simulating the dilantancy of dense sand. Discrete element simulation is carried out for triaxial test of dense sand by using the rolling resistance linear contact model

which verifies the reliability of the rolling resistance linear contact model. Furthermore

the correlations between the meso-parameters such as inter-particle friction coefficient

stiffness ratio and rolling resistance coefficient and the macro-parameters such as peak internal friction angle

residual internal friction angle and peak angle of dilantancy of sand are systematically analyzed. The influence of meso-parameters on shear band width and inclination of dense sand under deviatoric stress is revealed. An empirical formula of shear band inclination angle considering dilatancy angle is proposed. Quantitative relationship between macro and meso parameters of rolling resistance linear contact model is established through research

which providing basis for precisely simulating mechanical characteristics of dense sand by using rolling resistance linear contact model. The flow chart of calibration is given. A method for fast calibration of macroscopic parameters is proposed and verified by an example.