With a plan to implement above-ground tailings storage and underground mine backfill as part of a proposed potash extraction project, a confidential mining client retained Barr to review alternatives and provide feedback on the above-ground tailings storage design. For the storage facility’s alternatives analysis, Barr considered several factors, including the design basis and stated project objectives of environmentally responsible tailings storage; storage capacity and operational flexibility; cost-effective storage; and consistency with final decommissioning and reclamation of the site. To help facilitate the alternative analysis, we also leveraged previous experience from Barr’s successful designs for salt- and slimes-disposal systems at other potash and salt-tailings storage facilities.
Barr’s additional work included evaluating mine backfill strength requirements, as well as backfill preparation, transport, and placement underground. This included in-laboratory testing of tailings rheology, conceptual design of the tailings distribution and bleed-water recovery systems, and material quantity take-offs for cost estimating.
Construction on this project is expected to begin in late 2021.
Vice President Senior Civil Engineer
Vice President Senior Geotechnical Engineer