Centrifuge and numerical modeling of long-term stability of retention type tailings dams

Prof. B.V.S. Viswanadham
Prof. B.V.S. Viswanadham
Civil Engineering Department, IIT Bombay
PC/CC
Shri P. A. Jadhav, BARC
Objectives
  1. To develop model test package for understanding the performance of retention type tailings dam subjected to seepage in a centrifuge at 30 – 40 gravities for long durations of the order of 1000 days.
  2. To monitor long-term migration of leachate from tailings into surrounding ground water and extent of clogging of drainage layer and seepage of tailings into retention dam material.
  3. To evaluate the possibility of replacing conventional materials (like used for constructing impervious core and drainage) with geosynthetic based products and evaluate their long-term performance through centrifuge model tests and laboratory tests.
  4. To design and develop tilting table test setup for evaluating the pseudo-static stability of retention type tailings dam section in a centrifuge.
  5. To perform parametric study for understanding their effect on static and pseudo-static stability behaviour of retention type tailings dams through centrifuge model tests.
  6. To perform numerical model studies for evaluating static and pseudo-static stability behaviour of retention type tailings dams and compare with centrifuge model test results.
  7. To evolve at guidelines for the design of retention type tailings dam facilities.