Published

2019-01-01

Determination of Distance Required to Ensure Stope and Footwall-drift Non-interaction Zone based on Geological Strength Index

Determinación de la distancia requerida para asegurar el rebaje y las galerías en muros de la zona de no interacción en minería subterránea con base en el Índice de Resistencia Geológica

Keywords:

Footwall drift, numerical analysis, underground stability (en)
galería en muro, análisis numérico, estabilidad subterránea (es)

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Authors

  • Mehmet Volkan Ozdogan Dokuz Eylul University Engineering Faculty Department Of Mining Engineering
  • Alper Gonen Dokuz Eylul University Engineering Faculty Department Of Mining Engineering
In the Bakibaba Copper Mine, the longhole stoping method is used in the production of copper ore. Stability problems have occurred at times on the footwall drift due to the interaction between the footwall drift and stope. In this study, we propose a method for estimating the minimum distance necessary to ensure a non-interaction zone between the footwall drift and stope. We used the finite element method and various distances between the footwall drift and stope and the displacements over drifts as parameters. We also performed analyses on various geological strength index values from low to high to determine the effect of the rock mass on the interaction between the footwall drift and stope

En la mina de cobre de Bakibaba se utiliza el método de minería por perforación de barrenos largos para extraer el mineral. Los problemas de estabilidad han ocurrido generalmente en las galerías en muro debido a la interacción entre la galería y el rebaje. En este estudio se propone un método para la estimación de la distancia mínima necesaria para asegurar la zona de no interacción entre la galería en muro y el rebaje. Se utilizó como parámetro el método del elemento finito y varias distancias entre la galería en muro y el rebaje y los desplazamientos sobre las galerías.  También se realizaron análisis con varios índices de resistencia geológica de abajo hacia arriba para determinar el efecto de la masa rocoa en la interacción entre la galería en muro y el rebaje.

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