caa a22 4500 465780288 CHVBK 20180323111953.0 cr unu---uuuuu 170327e19900501xx s 000 0 eng 10.1007/BF01281667 doi (NATIONALLICENCE)springer-10.1007/BF01281667 Vylomov V. "Magnezit” Combine, USSR aut Investigating the advantages of using a lead trench for the selective working of a magnesite deposit [Elektronische Daten] [V. Vylomov] Conclusions: Stripping a magnesite deposit from the underside, despite the favorable schedules for stripping and mining operations, is ineffective because of the large volumes of contaminated ores. One of the most effective methods of reducing the ore contamination and increasing the effectiveness of working the site is to use a lead trenching system. For deposits of magnesite this method in all cases is more suitable than the gross extraction method. With fall angles from 0 to 50-60° it is best to use lead trenches with simultaneous working of the massive, and with angles of more than 50-60° with sequential working. Plenum Publishing Corporation, 1991 Refractories Kluwer Academic Publishers-Plenum Publishers 31/5-6(1990-05-01), 344-347 0034-3102 31:5-6<344 1990 31 11148 https://doi.org/10.1007/BF01281667 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01281667 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Vylomov V. "Magnezit” Combine, USSR aut NATIONALLICENCE 773 0- Refractories Kluwer Academic Publishers-Plenum Publishers 31/5-6(1990-05-01), 344-347 0034-3102 31:5-6<344 1990 31 11148 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer