The new RAMMS::ROCKFALL model (not yet released!) employs a hybrid approach combining rigid body mechanics with scarring mechanisms for soft compactable soils. It permits an explicit description of arbitrary three dimensional polyhedral bodies, including natural rock-shapes. Introducing real rock-shapes into rockfall modelling enables a better inclusion of the natural variability of rock-shapes and sizes generated from differing geological settings. With this we come closer to modelling the true nature of rockfall runout behaviour, integrating rock-shape and the release kinematics characteristic of site specific rockfall hazards.
The theoretical framework of the new RAMMS::ROCKFALL model is described in full detail in Lu et al, 2019, Leine et al, 2014, and Leine et al., 2021. Below, the most important features are highlighted.