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SUB LEVEL CAVING [1 record]
Record 1 - internal organization data 2000-07-26
Record 1, English
Record 1, Subject field(s)
- Extraction Procedures - Various (Mining)
Record 1, Main entry term, English
- sublevel caving
1, record 1, English, sublevel%20caving
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- subdrift caving 2, record 1, English, subdrift%20caving
correct
- sub-drift caving 3, record 1, English, sub%2Ddrift%20caving
correct
- sub-level caving 4, record 1, English, sub%2Dlevel%20caving
correct
- sub level caving 5, record 1, English, sub%20level%20caving
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A stoping method in which relatively thin blocks of ore are caused to cave by successively undermining small panels. The ore deposit is developed by a series of sublevels spaced at vertical intervals of 18 to 25 or 30 feet and occasionally more. ... The sublevels are developed by connecting the raises with a longitudinal subdrift from which timbered slice drifts are driven right and left opposite the raises to the ore boundaries or to the limits of the block. Usually alternate drifts are driven first, and caving back from them is begun and continued while the intermediate slices are being driven. The caving is begun at the ends of the slices by blasting out cuts and retreating in the same manner toward the raises. ... Successively lower sublevels are developed and caved back until the entire block has been mined. 6, record 1, English, - sublevel%20caving
Record 1, French
Record 1, Domaine(s)
- Procédés d'extraction divers (Exploit. minière)
Record 1, Main entry term, French
- foudroyage par sous-étages
1, record 1, French, foudroyage%20par%20sous%2D%C3%A9tages
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- foudroyage par sous-niveaux 2, record 1, French, foudroyage%20par%20sous%2Dniveaux
correct, masculine noun
- sous-niveaux foudroyés 3, record 1, French, sous%2Dniveaux%20foudroy%C3%A9s
correct, masculine noun, plural
- exploitation en sous étages avec foudroyage 4, record 1, French, exploitation%20en%20sous%20%C3%A9tages%20avec%20foudroyage
correct, masculine noun
- éboulements par sous-étages 5, record 1, French, %C3%A9boulements%20par%20sous%2D%C3%A9tages
masculine noun, plural
- exploitation par sous-niveaux foudroyés 6, record 1, French, exploitation%20par%20sous%2Dniveaux%20foudroy%C3%A9s
feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Le foudroyage par sous-étages. Au mur, parallèlement à l'amas, sont tracées des galeries horizontales [...] reliées par des cheminées au stérile [...]. À partir des horizontales, des recoupes [...] traversent l'amas. [Ensuite] l'ouvrier perce des trous de mine dans les directions horizontales et verticales [...] autour de la galerie [...]. Sur sa tête se trouve un banc de minerai en place, puis un peu de minerai sali par du stérile à l'endroit où se trouvait la galerie du sous-étage supérieur avant abattage, puis le stérile de foudroyage. Une fois les mines tirées, le minerai est chargé et évacué par l'arrière [...]. L'abattage va donc en reculant dans chaque galerie de sous-étage, les sous-étages étant exploités en descendant. 7, record 1, French, - foudroyage%20par%20sous%2D%C3%A9tages
Record 1, Spanish
Record 1, Textual support, Spanish
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