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Showing: 51 to 60 of 3400 matches for "long hole stope"  Page    prev   1   2   3   4   5   6   7   8   9  next
TITLE The Design Development, and Mining of the Southern 'B' Lode Orebody at NBHC 
SUMMARY ... Because of the shape of the orebody, it was possible to mine all the ore from each
long- hole stope from a loading horizon near the underwall position in each ...
PUBLISHED 1977
TITLE Some Notes on Recent Changes in Ore Extraction Practices in the Zinc Corporation and New Broken Hill Consolidated Mines 
SUMMARY ... anticipated that long hole percussion equipment will be used to drill horizontal
fans from the service winzes located in centre and end pil- lars of the stope. ...
PUBLISHED 1957
TITLE Massive Mining Techniques at 2300 m Depth 
SUMMARY ... Wide open stoping The areas with wide composite reefs that are payable are mined
on a retreat basis using long hole drilling. The stope has a trough drive at ...
PUBLISHED 2000
TITLE Thermal Fragmentation - An Innovative Process for Mining Narrow High-Grade Precious Metal Veins 
SUMMARY ... Drift development and stope layout Drift development is performed directly ... of two
sublevel drifts, a pilot hole is drilled ... are 125 cm wide, 275 cm long and 165 ...
PUBLISHED 2008
TITLE Computer Simulation of Stoping Methods at the Z.C. Mines Broken Hill Operations 
SUMMARY ... TABLE IDENTIFICATION: Stoping Method. (CF or LH) = LH = Long Hole Open Stope. Stope
ID. (A,B,C,D or E) =C = 110 LHDS. Run Number. =6 =Sequential Run Number. ...
AUTHOR Richardson M ; Hoare R ; Koeng R
PUBLISHED 1988
TITLE Lead-zinc Ore Mining at the Isa Mine of Mount Isa Mines Limited, Mount Isa, Queensland 
SUMMARY ... two diaphragm rings against adjacent fill in a pillar stope. The cut-off raise is
generally raisebored at 1.8 m dia, though a 1.8 mx 1.8 m long hole winze will ...
PUBLISHED 1993
TITLE Sources of External Dilution in Underground Sublevel and Bench Stoping 
SUMMARY ... On the other hand, repetitive blasting of long hole winzes along tabular, narrow
orebodies has been known to severely weaken the bench stope hangingwalls. ...
PUBLISHED 1995
TITLE Dilution Control at Outokumpu Mines 
SUMMARY ... geophysical in-hole logging with long hole drilling has ... encouraging (Figure 6).
Geophysical in-hole logging system ... core drilling in detailed stope planning and ...
AUTHOR Pitkajarvi J
PUBLISHED 1996
TITLE Hanging - Wall Control at Willroy 
SUMMARY ... the hanging wall at 8-foot intervals a long the 12th ... random ore pillars were not
used ; the stope was mined ... P rocedure A 3-inch-diameter hole, inclined at -1 ...
AUTHOR Marshall, D
PUBLISHED 1963
TITLE Lease Linkup, North Kalgurli 
SUMMARY ... To overcome some of the problems of transporting ore over long leads, involving
poor trucking conditions, internal ore and waste passes have been developed and ...
PUBLISHED 1985
Showing: 51 to 60 of 3400 matches for "long hole stope"  Page    prev   1   2   3   4   5   6   7   8   9  next

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