Collapsible cushion

Details Collapsible cushion Collapsible cushion

E - Fixed Constructions

21

F

E21F 15/08 (2006.01) E21C 35/00 (2006.01)

Patent

CA 2685783

A method of mining a valuable metal or material in an ore body is described. The method comprises the steps of: a) placing a cushion in a stope whereby the cushion creates a void into which fragmented rock can expand during subsequent blasting operations for a second or subsequent panel; and, b) maintaining the void until blasting operations occur whereupon the void is caused to collapse to accommodate fragmented ore generated during blasting operations.

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