Three-dimensional discrete element numerical simulation of Paleogene salt structures in the western Kuqa foreland thrust belt

LI Jianghai,ZHANG Yu,WANG Honghao,WANG Dianju

Table 1 The microscopic physical parameters of the discrete element simulation.

Layer Density/ (kg•m-3) Particle normal stiffness/ (N•m-1) Particle tangential stiffness/ (N•m-1) Friction coefficient Damping coefficient Contact type Normal critical damping ratio Normal stiff- ness of parallel bond/(N•m-1) Tangential stiffness of parallel bond/(N•m-1) Parallel bond tensile strength/N Parallel bonding cohesion/N Post-salt particle 2, 400 1010 1010 0.30 0.7 Linear parallel bond model 0.7 108 5 × 107 2 × 105 5 × 104 Salt layer particle 2, 200 1010 1010 0.05 0.7 Linear model 0.7 Pre-salt particle 2, 600 1010 1010 0.30 0.7 Linear parallel bond model 0.7 108 5 × 107 2 × 105 5 × 104 Boundary particle With inheritance With inheritance Linear parallel bond model 0.7 106 5 × 106 2 × 103 5 × 102