Case Case Of Goa And Mining Companies Avoiding Drilling And Blasting

Blasting loosens the top and skill caps. Blasting is sometimes needed in sand stone quarries because of the hardness. A series of deep holes about 25mm in diameter are formed with drilling machines at the required distance from and parallel to the face of the quarry. A small charge of gunpowder and a fuse are placed or tamped with sand.

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