Gold Mining: Proceedings of the International Conference on Gold Mining Technology, Beijing, China, 15-17 June 1993 |
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Page 430
... operation with TY220 and T - 140 type bulldozers . '93 ISGMT Modern Placer Mining for Maximum Profit Jack Kao. Table ... operation the stope cross section is first measured followed by precise recording operation time . The stope cross ...
... operation with TY220 and T - 140 type bulldozers . '93 ISGMT Modern Placer Mining for Maximum Profit Jack Kao. Table ... operation the stope cross section is first measured followed by precise recording operation time . The stope cross ...
Page 443
... operations continuously either with- in small blocks or between them , the times of cach operation should keep the following relationship : T ; < T < T < T in which : T -- time of stripping , T - time of mining , T - time of haulage , T ...
... operations continuously either with- in small blocks or between them , the times of cach operation should keep the following relationship : T ; < T < T < T in which : T -- time of stripping , T - time of mining , T - time of haulage , T ...
Page 456
... operation was undertaken by bulldozers and hauling and feeding operation was fulfilled with loaders and backhoes . Scrubbing , distributing and screening was oper- ated with drum screen , and washing operation was in pulsating sluice ...
... operation was undertaken by bulldozers and hauling and feeding operation was fulfilled with loaders and backhoes . Scrubbing , distributing and screening was oper- ated with drum screen , and washing operation was in pulsating sluice ...
Contents
Prospecting Criteria and DeepSeated Prognosis of Buried Ore in Jiapigou Gold Mining | 8 |
Update on Mining Activities on the Island of Hispaniola Dominican Republic and Haiti | 23 |
An Approach of the Geologic Genesis of Jinchanggouliang Gold Deposit Inner Mongolia | 42 |
Copyright | |
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Common terms and phrases
According alteration angle application average backfill belt blasting block body capacity carried cement China compressive concentration cost depth direction distribution district dredge drift drilling economic effect efficiency equipment exploration fault Figure flocculation formed fracture geological gold deposits gold mines grade ground higher holes important improved increase indices intensity length less load located loss lower major mass material measures mechanized method mill mineralization mining method occurred operation orebody period pillar placer present problems production prospecting Province quartz raise range ratio recovery reduced rock roof samples screen sericitic shaft shown shrinkage side slice sluice stage stope strength stress strike stripping structure surface Table tailing thickness tion trend upper various vein ventilation vertical wall zone