Journal of
Geology and Mining Research

  • Abbreviation: J. Geol. Min. Res.
  • Language: English
  • ISSN: 2006-9766
  • DOI: 10.5897/JGMR
  • Start Year: 2009
  • Published Articles: 172

Full Length Research Paper

Study of fractured rock masses deformation in Boukhadra (Tebessa) underground mine empirical and numerical approach (N-E Algeria)

Gadri Larbi1*, Boumazbeur Abderrahmen3, Nouioua Ismail1, Boukeloul Mohammed-laid2, Hamdane ali4, Mouici Ridha3, Mebrouk Faouzi4 and Ibrahim Hammoud5
  1Department of Mines, Tébessi University, Tébessa 12002 Algeria. 2Department of Mines, B. M. Annaba University, Tébessa 12002 Algeria. 3Department of Geology, Tébessi University, Tébessa 12002 Algeria. 4Department of Geosciences, University centre of Khémis-Miliana, Algeria. 5Department of Civil Engineering, University of Damascus, SYRIA.
Email: [email protected]

  •  Accepted: 15 February 2012
  •  Published: 31 March 2012

Abstract

 

The purpose of this paper is to assess the engineering geological characteristics of Boukhadra’s iron mine rock mass. Several problems of deformation and stability were frequently encountered during the progress of the exploitation. This phenomenon affects seriously the safety of the miners and the progress of the work. In this research project, we try to estimate the behavior of the host rock mass, its deformability and stability. Field studies consisted of geological mapping, discontinuity surveying, core drilling and sampling for laboratory studies. Physical properties, uniaxial compressive strength and shear strength tests were conducted in the laboratory. Rock mass classes and rock mass strength and deformability parameters were determined based on the AFTES guidelines, rock quality designation (RQD), rock mass rating (RMR) and Q rock mass classification systems. The deformations were then numerically determined using Plaxis Software. The modeling results were in good agreements with the rock mass qualities as assessed by RMR, Q-system, AFTES guidelines.

 

Key words: Engineering geology, finite element method, rock mass classification, iron mine, Boukhadra, Algeria.