公开(公告)号：US10151200B2

公开(公告)日：2018-12-11

申请号：US14280357

申请日：2014-05-16

Applicant: VALE S.A.

Inventor： Daniel MacIntyre ,  Peter Golde ,  Michael Van Der Hooft

IPC: E21C41/16 ,  E21C41/22 ,  E21F13/02 ,  E21F13/06 ,  E21C35/20

Abstract: The present invention refers to a set of methods and procedures that may be combined in order to greatly increase the speed of development of an access ramp in a underground hard-rock mine. More particularly, the present invention was designed to target all the bottle-necks comprised by the access operation of a hard-rock mine that employs a RAIL-VEYOR machine. The invention also comprises of an ore production line which consists in the sequential arrangement of a series of mining equipment between the work face and the entrance of a hard-rock mine. The invention also comprises a Hard Rock Mining Access Plan for a hard-rock mine which encompasses two parallel ramps interconnected by cross-cut passageways. Further, invention also comprises a Ground Support Installation method configured to shorten the time required for the installation of ground support inside of a hard-rock mine.