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Marcial
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MarcialTeacher
Added: July 23, 20242024-07-23T05:38:49-04:00 2024-07-23T05:38:49-04:00In: Mining Operations

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Dans les mines, vous ne verrez jamais de ligne droite en ce qui concerne le trajet de transport des minerais.

Cette particularité de l’exploitation minière en souterrain comme à ciel ouvert laisse entrevoir quelques interrogations.

✳️Quelle est l’importance des inclinés ?

Les inclinés sont en fait le compromis entre la longueur et les limitations techniques de performances des bennes et autres engins de traction.

Ces pentes varient entre 8% et un maximum de 10% pour les camions-bennes.

La pente de 8% donne plus de souplesse à l’exploitation.

Si la pente est inférieure à 8%, cela allonge la longueur de la piste, augmente la découverture et complique le dessin du projet.

En outre, elle augmente le temps de cycle des camions et a une incidence directe sur le consommation en gasoil qui augmente avec une diminution sensible de la vitesse.

D’autre part, les moteurs Diesels en fournissant beaucoup d’énergie, travaillent en surcharge et il y a risque de détérioration rapide des moteurs qui coûtent pourtant chers.

Des moteurs défectueux entraînent nécessairement des coûts de maintenance plus élevés, ce qui induit parfois des dépenses en plus.

Le choix de l’angle de pente des pistes dans l’exploitation minière est donc un paramètre crucial qui a un effets direct sur la productivité.

???? ??????: ????? ??? ?????? ?? ????i?é?.
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