A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Procedures for estimating seismic permanent displacements on tailings storage facilities and mine waste dumps
The use of pseudo-static procedures for assessing seismic slope stability analysis of a tailings storage facility (TSF) and a mine waste dump (MWD) is a common practice in geotechnical engineering; however, new methodologies have emerged for the calculation of seismic induced permanent displacements of earth structures, which is considered a more reliable approach compared to the calculation of a factor of safety (FOS) obtained by the pseudo-static procedure. The authors have studied the application of several methodologies to assess the seismic stability of TSF and MWD based on two case studies. One-dimensional (1D) nonlinear seismic response and slope stability analyses were performed as part of these applications. Cyclic laboratory tests on coarse tailings and mine waste were performed to evaluate their dynamic properties and were compared to current state-of-practice literature curves. The resulting displacements using these procedures proved, in general, to be similar. This research suggests that the seismic analysis should be less focused on the pseudo-static FOS as a parameter to predict the seismic stability of TSF and MWD, unless a rational criterion is chosen for the determination of the seismic coefficient. ; Applied Science, Faculty of ; Mining Engineering, Keevil Institute of ; Unreviewed ; Other
Procedures for estimating seismic permanent displacements on tailings storage facilities and mine waste dumps
The use of pseudo-static procedures for assessing seismic slope stability analysis of a tailings storage facility (TSF) and a mine waste dump (MWD) is a common practice in geotechnical engineering; however, new methodologies have emerged for the calculation of seismic induced permanent displacements of earth structures, which is considered a more reliable approach compared to the calculation of a factor of safety (FOS) obtained by the pseudo-static procedure. The authors have studied the application of several methodologies to assess the seismic stability of TSF and MWD based on two case studies. One-dimensional (1D) nonlinear seismic response and slope stability analyses were performed as part of these applications. Cyclic laboratory tests on coarse tailings and mine waste were performed to evaluate their dynamic properties and were compared to current state-of-practice literature curves. The resulting displacements using these procedures proved, in general, to be similar. This research suggests that the seismic analysis should be less focused on the pseudo-static FOS as a parameter to predict the seismic stability of TSF and MWD, unless a rational criterion is chosen for the determination of the seismic coefficient. ; Applied Science, Faculty of ; Mining Engineering, Keevil Institute of ; Unreviewed ; Other
Procedures for estimating seismic permanent displacements on tailings storage facilities and mine waste dumps
Pérez, Keith (author) / Tapia, Eder (author) / Reyes, Andrés (author) / Ayala, Renzo (author) / Tailings and Mine Waste Conference (2015 : Vancouver, B.C.) / University of British Columbia. Norman B. Keevil Institute of Mining Engineering
2015-10-01
Conference paper
Electronic Resource
English
DDC:
500
Modelling tailings dams and mine waste dumps failures
| British Library Online Contents | 2002
Modelling tailings dams and mine waste dumps failures
| Online Contents | 2002
Stabilization of surfaces of mine tailings dumps
Engineering Index Backfile | 1964
Recultivation of opencast coal mine waste dumps
| British Library Conference Proceedings | 1997