Research on the Fracture Grouting Mechanism and PFC Numerical Simulation in Loess

Table 2

Microparameters of the particle.

Particle radius, Rmin	Rmax/Rmin	Contact stiffness, kn (N/m)	Kn/Ks	Friction coefficient, fc	n_bond (Pa)	s_bond (Pa)
0.35	1.43	2 × 10^7	1	0.4	2.5 × 10^4	2.5 × 10^4