https://www.nist.gov/stonewall/description/coarse-grain-0
coarse grain
https://www.springerprofessional.de/en/meso-level-and-macro-level-mechanical-properties-of-slip-zone-so/25176484
The physical and mechanical properties of coarse-grained slip zone soil are notably different from those of fine-grained slip zone soil, which is
mechanical propertiesmesolevelmacroslip