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Answers to Questions Raised in March 16, 2018 Review of Itasca Analysis of Resolution Subsidence

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Date Published: 
May 2, 2018
Authors: 
Matthew Pierce
Tryana Garza-Cruz

This technical memo addresses three specific questions raised by reviewers of the subsidence analysis in a March 2018 meeting. These questions are outlined and answered below.

  1. What was the minimum zone size used to represent faults implicitly within the FLAC3D model?
  2. What is the volume of caved rock remaining in the ground at the end of mine life?
  3. What is the potential for residual subsidence after production from the panel cave has ceased?
Cited In: 
Final EIS
Reference Information: 

Pierce, M., and T. Garza-Cruz. 2018. Answers to Questions Raised in March 16, 2018 Review of Itasca Analysis of Resolution Subsidence. Ref: 2-4208-04: 18TM15. Minneapolis, Minnesota: Pierce Engineering and Itasca Consulting Group, Inc. May 2.

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