Project 8 - BVS Viswanadham

    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.

    Deliverables :

    At PI/ CI's Institution

  1. Ist Year: Literature review, Model formulation, Model test package design, fabrication and Calibration at normal as well as high gravities; Procurement of instrumentation transducers and other utilities.
  2. Iind Year: Centrifuge tests in dam sections subjected to seepage; Centrifuge tests with tilting-table device; Parametric study; Analysis of results and numerical modeling and Comparison.
  3. IIIrd Year: Parametric study; Compilation of results; Report preparation and submission

    At PC's Institution

  1. Ist Year: Retention type dam section selection and data collection; Based on the collected, model retention dam section will be finalized suiting the specifications of the centrifuge facility.
  2. IInd Year: Analysis of data and available instrumented data; Numerical modeling of the dam section, if any.
  3. IIIrd Year: Numerical modeling of the dam section and parametric study.