Insulation Used Chamber at Coal Mining System of Short Working Faces

Баскаков, В П; Igishev, V.G.; Sementsov, V.V.; Dobrovolskiy, М.S.

doi:10.18796/0041-5790-2016-4-44-47

Cited by 1 publication

(1 citation statement)

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“…In Russia rock-and-pillar mining operations used and are using various flowcharts described in many domestic papers, dissertations and R&D reports [1][2][3][4][5]. Mineral reserves from pillars are extracted by various width and length cuts [6]. Mining safety is ensured by narrow pillars established between the cuts and named as protective pillars [7].…”

Section: Introductionmentioning

confidence: 99%

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

Prokopenko¹,

Sementsov²,

Dobrovolsky³

et al. 2020

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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. The article is prepared in the framework of the Competitiveness Enhancement Program of the Tomsk Polytechnic University.

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Section: Introductionmentioning

confidence: 99%