conferencePaper Int. Symp. UDEC – 3DEC, Numerical Modeling of discrete materials, 29 Sept. – 1 Oct. 2004 1 Bochum, Germany A.A. Balkema Alfonsi P. Fouché O. Bourgeois E. Konietzky Stochastic fracture network simulations for a DEM numerical approach of bridge foundation on rock 2004 257–262