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Determination of the damaged zone in quarries, related to aggregate production

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Abstract.

To make quarrying profitable, the blasting should effectively disintegrate the rock mass whilst at the same time minimising damage to the individual rock fragments. The zone of damage around blast holes has been considered in two quarries: in Permian dolerite at Billingsryd and tonalitic gneiss at Angered Quarry. The paper describes the fracture mapping and ultrasonic measurements undertaken.

Résumé.

Afin d’améliorer le rendement d’exploitations en carrière, l’abattage à l’explosif doit fragmenter la roche tout en minimisant les dommages aux éléments produits. La zone endommagée autour de trous de mines a été étudiée dans deux carrières: une carrière de dolérite du Permien à Billingsryd et une carrière de gneiss tonalitique à Angered. L’article décrit la cartographie de la zone fissurée et les mesures ultrasoniques réalisées.

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Jern, M. Determination of the damaged zone in quarries, related to aggregate production. Bull Eng Geol Environ 60, 157–166 (2001). https://doi.org/10.1007/s100640100104

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  • DOI: https://doi.org/10.1007/s100640100104

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