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Extra info for Advances in discontinuous numerical methods and applications in geomechanics and geoengineering : proceedings of the 10th International Conference on Advances in discontinuous numerical methods and applications in geomechanics and geoengineering, ICADD, H

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Assuming small displacements, it achieves high computational efficiency because the interaction geometry (location and apparent stiffness of springs) can be pre-computed, eliminating contact detection as an overhead. A lattice SRM model was applied by Cundall & Damjanac (2009) to the analysis of slopes with discontinuous joint sets, to study the fracture of the intact rock bridges (Figure 6). 3 Concrete dam foundations The conceptual model of a rock mass as a blocky system has been employed for many years in the design of concrete dam foundations.

Dam Engineering, XXI(4): 299–312. , DeGagné, D. & Darcel, C. 2008. Anisotropy and Scale Dependency in Jointed Rock-Mass Strength—A Synthetic Rock Mass Study. In Hart, Detournay & Cundall (eds) Continuum and Distinct Element Numerical Modeling in Geo-Engineering 2008, Paper 06–01. , Potyondy, D. & Mas Ivars, D. 2007. A Synthetic Rock Mass Model for Jointed Rock. In E. Eberhardt et al. S. Rock Mech. , Vancouver), vol. 1, London: Taylor & Francis, 341–349. Potyondy, D. 2010. A Grain-Based Model for Rock: Approaching the True Microstructure.

Indb 33 12/21/2011 3:12:21 PM Figure 3. 4 The sensitivity analysis of the time interval and the penalty based on the velocity ratio. Sensitivity analysis for the time interval and the penalty based on the velocity ratio Shimauch, et al. (2011) studied the parameters of DDA in which the sensitivity analysis of the time interval and the penalty based on the velocity ratio in rock fall problems. Figure 3 show relations of the velocity ratio and the penalty in the parameters of the falling rock area/slope area and the velocity of falling rock.

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