Reducing the Long Term Risk and Enhancing the Closure of Tailings Impoundments

Reducing the Long Term Risk and Enhancing the Closure of Tailings Impoundments

Author: A. Adams, C. Hall, K. Brouwer
Conference: 87th Annual Meeting of the International Commission on Large Dams
Date: June 9-14, 2019

ABSTRACT
Tailings impoundments typically provide long-term storage for saturated, semi-fluid fine grained materials. Closure of these tailings impoundments represents an ongoing priority and challenge for owners and professionals due to the potential for the impounded tailings to fluidize and flow in the event of a dam failure. This paper provides a case study for the decommissioned Nye Tailings Impoundment at the Stillwater Mine. The closure plan includes capping the loose, saturated tailings with a thick waste rock layer to stabilize the impounded tailings, mitigate potential dusting and provide for water management.

 

Download the full technical paper.

Download

Recent Insights

November 2021
Knight Piésold's Projects Commended at Prestigious Awards
November 2021
Engineer of Record Services for Tailings Facilities
November 2021
Gearing Up for Growth in Zambia
October 2021
Knight Piésold, aliado de la minería sustentable
September 2021
Knight Piésold Chile enfoque personalizado e integral de trabajo al estilo boutique
September 2021
Company Uses Innovative Ideas in Municipal Project
August 2021
South Africa Must Focus on STEM Skills to Enable Development
July 2021
Business Success Stories: Knight Piésold
July 2021
Holistic Approach to Mine and Industrial Water Management
July 2021
Selection of Undrained Shear Strength Parameters of Residual Soils and their Application in Stability Analysis
June 2021
Knight Piésold Focused on Africa's Infrastructure Development
June 2021
Century-old Knight Piésold Remains Committed to Clients and Communities in Phalaborwa
May 2021
Very Few Consulting Firms Reach 100 Years – Knight Piésold Celebrates with Optimism
April 2021
Knight Piésold Celebrates 100 Years of Excellence in Africa
April 2021
Video: Knight Piésold Celebrates 100 Years of Engineering Excellence
April 2021
Opportunities Abound to Support Africa's Resilient Growth - Knight Pièsold
April 2021
Firm Expands Service Offering
March 2021
Celebrating 100 Years of Engineering Excellence
February 2021
Improved Tailings Disposal Could Reduce Water Use
January 2021
Your Community, Your Neighbour