... ABSTRACT: A small-scale laboratory test was conducted to get a better understanding on coefficients of restitution and rotational motion of rockfall impact. The tangential component R t shows a dependency on the incoming direction, where the coefficient increases slightly with the increase...

... to minimize excavation costs and risk management for constructed or natural slopes. metals & mining Reservoir Characterization Upstream Oil & Gas field test quarry structural geology trajectory restitution coefficient rock fall reservoir geomechanics rock fall trajectory field test...

... simulation [5]. In such a numerical simulation, the most important input parameter controlling the outputs must be the coefficient of restitution. The reliability of the estimation of the coefficient must be examined. When a falling rock block strikes the ground, the block does not bounce much. The block...

..., the required input data are the normal coefficient of restitution, the tangential coefficient of restitution and the coefficient of rolling friction. In order to accommodate shape and rotational effects in lumped mass models, two empirical factors related to size and normal impact velocity are employed. Using...

... interaction between materials is a function of the combined properties of the fall body and the impact surface, with only three input parameters required; the coefficient of restitution, and the static and dynamic friction angles. (iii) Comparative and sensitivity studies with different variables. (iv...

... simulations is the uncertainty and large variability of physical parameters such as coefficients of friction and normal coefficient of restitution. Rocks come in various shapes and sizes. Rock slope surfaces are rugged and materially inhomogeneous. In such situations deterministic analyses are rather futile...

..., attributes which call for a re-evaluation of how this important enterprise is judged. Reservoir Characterization Upstream Oil & Gas ellipsoid Artificial Intelligence restitution assumption Software Engineering computational algorithm coefficient application impact angle reservoir...

... restitution mapping digital photogrammetry hydraulic fracturing accuracy calibration rock face coordinate system target point control point fracture geometry photogrammetry Rock Mechanics in the National Interest, Elsworth, Tinucci & Heasley (eds), ¸ 2001 Swets & Zeitlinger Lisse, ISBN 90 2651...