Stress redistribution around single and multiple stope-and-fill operations

C. R. Newman, Z. G. Agioutantis

Research output: Contribution to conferencePaperpeer-review

4 Scopus citations


As conventional underground deposits have been depleted, mining operations have been required to produce at deeper depths and in more complex geological conditions. Cemented paste backfill (CPB) is often utilized by mining operations as a means of ground support providing not only a safe working environment but also the ability to further enhance reserve extraction while effectively managing mine waste material. While CPB has been quickly established within the mining industry, there are many fundamental design factors with respect to the safe and economical design of backfill structures that are still not well understood. A critical design issue is the determination of stress distributions around the excavation and through the backfill material. This paper details the development of a reliable numerical model for the simulation of stress distributions and behaviors with respect to single and adjacent vertical backfilled stopes as well as through the CPB material. Through discussions on modeling parameters and output results, one is provided with insights into the mechanisms of stress redistribution allowing for further accuracies in simulating the behavior of the CPB material as well as its interaction with the surrounding rock mass. With a more thorough understanding of the stress distribution mechanisms, industry engineers will be provided with a better means of optimizing underground stope-and-fill mining operations for the total extraction of the mining reserve.

Original languageEnglish
StatePublished - 2018
Event52nd U.S. Rock Mechanics/Geomechanics Symposium - Seattle, United States
Duration: Jun 17 2018Jun 20 2018


Conference52nd U.S. Rock Mechanics/Geomechanics Symposium
Country/TerritoryUnited States

Bibliographical note

Publisher Copyright:
Copyright © 2018 ARMA, American Rock Mechanics Association.

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology


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