STABILITY EVALUATION SYSTEM FOR UNDERGROUND METAL MINES, APPLICATION AT THE SOTIEL MINE

Información del proyecto

Identificador del acuerdo de subvención: MA2M0013

Proyecto cerrado

Fecha de inicio 1 Marzo 1991

Fecha de finalización 28 Febrero 1994

Financiado con arreglo a

• Specific research and technological development programme (EEC) in the fields of raw materials and recycling, 1990-1992

Coste total Sin datos

Aportación de la UE Sin datos

Coordinado por

Geocontrol SA
Spain

Objetivo

To develop a system for controlling stability based on sophisticated techniques such as acoustic emission, georadar, photoanalysis and calculation of block stability using 3-dimensional calculation programme. The research will aim to reduce the thickness of the crown pillars, facilitate the working of the barier pillars and optimise the use of support cables (Sotiel mine).

The research will comprise the following phases.

Phase 1 is the evaluation of the overall stability by means of acoustic emission techniques operating in real time on data analysis and by evaluating the response of the rock to normal working. The acoustic emission technique must register a response from the rock which is consistent with the progress of the excavations and the actual stability observed.

Phase 2 is the evaluation of the local stability in 5 stages.
Geotechnical characterization of the rockmass.
Evaluation of fracturing using photoanalysis and radar techniques. The systems developed must rapidly obtain reliable data on the spatial development of the discontinuities in the rock.
Integration of the rock mass data by computer. The task will be to represent, using a computer with sophisticated graphics, the spatial distribution of the discontinuities, determining the typology of unstable blocks.
Development of a calculation model (3-dimensional block theory) to optimize the density of the cables. The model should be able to handle all data obtained from measurements and tests and calculate the behaviour of the rock before and after the installation of the supporting system.
Development of an integrated computerized system designed to function with minimum human intervention to assure local stability.

In phase 3, the systems developed for the evaluation of the overall and the local stability will be installed in the mine for the final test and the final adjustments.

Phase 4 is the final joint report.

Ámbito científico

• natural sciences › computer and information sciences › data science
• engineering and technology › electrical engineering, electronic engineering, information engineering › information engineering › telecommunications › radio technology › radar

Programa(s)

• FP2-MATREC C - Specific research and technological development programme (EEC) in the fields of raw materials and recycling, 1990-1992

Tema(s)

Data not available

Convocatoria de propuestas

Data not available

Régimen de financiación

CSC - Cost-sharing contracts

Coordinador

Geocontrol SA

• Aportación de la UE: Sin datos
• Dirección: 28,Ríos Rosas ; 28003 Madrid ; España
• Coste total: Sin datos

Participantes (3)

Almagrera SA

España

• Aportación de la UE: Sin datos
• Dirección: Mina de Sotiel ; 21300 Calañas (Huelva)
• Coste total: Sin datos

Bureau de Recherches Géologiques et Minières

Francia

• Aportación de la UE: Sin datos
• Dirección: Avenue de Concyr ; 45060 Orléans - La Source
• Coste total: Sin datos

Institut National Polytechnique de Lorraine

Francia

• Aportación de la UE: Sin datos
• Dirección: Parc de Saurupt ; 54000 Nancy
• Coste total: Sin datos