%0 Conference Paper %A Seddon, K.D. %D 2010 %T Approaches to estimation of run-out distances for liquefied tailings %P 63-70 %E R. Jewell & A.B. Fourie %C Perth %8 29 September - 1 October %B Mine Waste 2010: Proceedings of the First International Seminar on the Reduction of Risk in the Management of Tailings and Mine Waste %X Estimates of runout distance of liquefied tailings from a failed dam may use strength-based approaches using either rheological parameters, or the critical state concept of undrained steady state strength. Problems associated with selection of rheological parameters are discussed. It is proposed that a reasonable approach is the assumption usy s=τ and 0=pη . Energy/work based methods are used as a check on this assumption and found to give good agreement. The effect of assumptions regarding the volume of material incorporated in the slide area is also investigated using the energy-based equations. The results indicate that there is a limiting volume, above which significant increases in the runout distance do not occur. %1 Perth %I Australian Centre for Geomechanics %U https://papers.acg.uwa.edu.au/p/1008_06_Seddon/ %R 10.36487/ACG_rep/1008_06_Seddon