Finweek English Edition - - Companies & Markets -

BLOCK CAV­ING is a min­ing method in which an ore­body is un­der­cut and then al­lowed to col­lapse due to its own weight. The ore is then re­cov­ered by mech­a­nised equip­ment from a se­ries of draw points lo­cated at the base of the ore­body. For the sys­tem to work the rock mass must con­tain nat­u­ral frac­tur­ing in suf­fi­cient den­sity such that it will nat­u­rally cave when un­der­cut.

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