Method of operating a quarry area

Details Method of operating a quarry area Method of operating a quarry area

E - Fixed Constructions

21

C

E21C 47/10 (2006.01) E21C 41/26 (2006.01)

Patent

CA 2361361

A method is provided for operating a quarry area having a layer of rock covered by a layer of overburden. The area is first divided into a plurality of strips with overburden from a selected first strip being stripped by depositing the overburden adjacent respective sides of the strip. The layer of rock from the first strip is stripped, blasted and excavated in sections for minimising the collection of water within a given work area. When stripping sections of adjacent strips, the overburden is deposited in the previously excavated strip or previously excavated section of the strip in a manner so as to cover an open rock face of the stripped section before blasting. Covering the rock face contains the rock to be blasted within a given section of the quarry area. Excavating equipment is supported above the rock layer for working below the water table if required. Depositing overburden in previously excavated strips and sections minimises displacement of overburden about the quarry area while maximising the accessible rock of the quarry area.

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