The Role and Relevance of a Double Block in the Hydraulic System of a Powered Roof Support

Szurgacz, Dawid; Diederichs, Ryszard; Brzózka, Marcin

doi:10.26730/2618-7434-2020-3-4-17

Cited by 1 publication

(1 citation statement)

References 12 publications

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“…Analysis of the open-pit mining technology of some areas of the closed underground mines of the Prokopyevsk-Kiselevsk coal district (part of Kuzbass) showed that a longitudinal deepening system of open-pit mining is mainly used here. The specific feature of the technology is the intersection of zones of coal seams depleted by the underground mining method [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Technological schemes of coal extraction in closed mines with the use of backhoes

Макаров¹,

Kolesnikov

Szurgacz³

2021

E3S Web Conf.

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At the present time on the fields of operating and closed-down mines there are sections of open-pit operations. However, the adopted technology does not meet environmental requirements, there are no scientific recommendations on the technology of open-pit mining in hazardous areas of mine fields, there is no substantiation of the boundary contours of open-pit mining. A characteristic feature of depleted mine fields is the disturbed rock mass and the lack of concentrated coal reserves within their boundaries. In fact, coal reserves are represented in the form of fragmentary volumes of safety pillars and substandard reserves in places of geological disturbances. Limitation of mine fields in terms of various infrastructure objects imposes special requirements for mining operations. In these conditions it is not possible to apply the classic mining systems and technologies. This predetermines the necessity to develop new technological solutions. Therefore, scientific research on justification of technology for extraction of remaining reserves of coal after underground development of inclined and steep-sloping coal deposits with simultaneous reclamation of disturbed lands is actual.

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Section: Introductionmentioning

confidence: 99%