Classification of protective pillars toward higher safety and innovation in room-and-pillar coal mining

Classification of protective pillars toward higher safety and innovation in room-and-pillar coal mining

Dettagli Bibliografici
Parent link:	Eurasian Mining № 2.— 2020.— [P. 24-27]
Ente Autore:	Национальный исследовательский Томский политехнический университет Юргинский технологический институт
Altri autori:	Prokopenko S. A. Sergey Arturovich, Sementsov V. V. Vyacheslav Vladimirovich, Dobrovolsky M. S., Nifanov E. V.
Riassunto:	Title screen During room-and-pillar mining, protective pillars of coal are usually left standing. The protective pillars differ in shape, size, process properties and extractability ratios of coal. The authors propose a classification of the protective pillars with respect to their structure and shape in order to estimate and predict their properties. The extractability ratios of coal are calculated for the initial rib pillars and panels at different final shapes of protective pillars. The protective pillars are ranked with respects to the coal extractability ratios. Such systematization of pillars enables selecting the best engineering solutions and innovative improvement of room-and-pillar mining in specific geological conditions toward enhanced safety and efficiency of underground coal production.
Pubblicazione:	2020
Soggetti:	электронный ресурс труды учёных ТПУ mine room-and-pillar mining rib pillar protective pillar cut cutter-loader extractability ratio losses classification shape
Accesso online:	http://dx.doi.org/10.17580/em.2020.02.06
Natura:	Elettronico Capitolo di libro
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664412

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