A methodology for assessing rock mass damage in underground mining

A. C. Adoko, M. Zhalel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The assessment of rock mass damage in underground mining environment is vital in stope design since it can assist in determining the extent of the excavation-damaged zone, min- imizing stope dilution and also improve ground support measures. Hence, the aim of this paper is to assess the rock mass damage including the inherent damage and mining-induced based on rock mass characteristics. A methodology based on the rock engineering system is implemented to define the Rock Mass Damage index (RMDi) and to quantify its influencing parameters. Historical data of drift excavations in Birchtree mine are used. The input parameters consist of the rock mass parameters and the excavation characteristics. The RMDi values are compared to the excavation overbreak and underbreak. The results suggest good correlation. It is concluded that the RMDi system could be used as a design tool to assess rock mass damage related to drill-and-blast and mechanical excavation in mine development.

Original languageEnglish
Title of host publicationRock Mechanics for Natural Resources and Infrastructure Development- Proceedings of the 14th International Congress on Rock Mechanics and Rock Engineering, ISRM 2019
EditorsSergio A.B. da Fontoura, Ricardo José Rocca, José Félix Pavón Mendoza
PublisherCRC Press/Balkema
Pages947-954
Number of pages8
ISBN (Print)9780367422844
Publication statusPublished - 2020
Event14th International Congress on Rock Mechanics and Rock Engineering, ISRM 2019 - Foz do Iguaçu, Brazil
Duration: Sep 13 2019Sep 18 2019

Publication series

NameRock Mechanics for Natural Resources and Infrastructure Development- Proceedings of the 14th International Congress on Rock Mechanics and Rock Engineering, ISRM 2019

Conference

Conference14th International Congress on Rock Mechanics and Rock Engineering, ISRM 2019
CountryBrazil
CityFoz do Iguaçu
Period9/13/199/18/19

All Science Journal Classification (ASJC) codes

  • Geology
  • Geotechnical Engineering and Engineering Geology
  • Civil and Structural Engineering

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