RockSlide Runout in UDEC v7

There was concern that a portion of the slow-moving rockslide could accelerate rapidly into the reservoir upstream of a dam, producing a wave that could overtop the dam. In this example UDEC is used to assess potential rockslide run-out characteristics.

To limit the subsurface extent of the failure and optimize modeling, the model jointing was bounded at depth by two major shears. Conjugate joints in the rock define the fabric within the slope. These blocks are then further subdivided into smaller blocks using a Voronoi tessellation to simulate the innumerable minor and incipient fractures/flaws that occur in the rock and to allow the mass to disaggregate during collapse.

(1) type and amount of damping used to simulate the coefficient of restitution and, consequently, energy loss during run-out;
(2) friction angle of contacts during movement;
(3) reservoir effects; and
(4) rock fragment sizes.

The results from these analyses were used as input to a physical wave model study. The example presented here has been simplified and shows a case that resulted in unstable sliding.

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[surihjagirani]

can you please share the link of this software