Authors: Yu.V. Malakhov, S.M. Nikitenko, V.N. Fryanov

Title of the article: Prevention of mining and geological risks of roof rock collapses during underground mining

Year: 2023, Issue: 6, Pages: 60-69

Branch of knowledge: 2.8.8. Geotechnology, Mining machines (engineering)

Index UDK: 622.062

DOI: 10.26730/1816-4528-2023-6-60-69

Abstract: Mining and geological risks periodically arise during the penetration of underground mine workings in coal mines, which can lead to accidents and incidents, stoppages of the technological process of underground mining. One of the ways to prevent these dangerous events in the work areas of personnel and the location of mining machinery and equipment is to install a temporary safety support in the bottom of the mine. The use of a walking temporary support in the preparatory face due to the alternating cyclic walking of the two-section construction of the support and the alternate perception of the mountain pressure by its overlap, an advanced temporary support is created, which significantly reduces the risk of collapse of the roof rocks. The authors of the article conducted studies of the acting loads on the hy-drofected walking support in the preparatory development and numerical modeling of stresses and deformations of the coal seam and host rocks in the vicinity of the preparatory face. The patterns of in are revealed. The purpose of the article is to develop a methodological approach to sub-stantiate the technical parameters of a hydrofied walking support to create temporary support for roof rocks near the preparatory face, preventing the risk of collapse.

Key words: mechanized walking support tunneling complex mechanization of tunneling works tunneling cycle cycle of movement rates of penetration high-speed penetration mining preparatory development mining and geological conditions risk prevention collapse of the roof of the mine temporary safety support justification of technical parameters hydrofected walking temporary support mining

Receiving date: 15.11.2023

Approval date: 30.11.2023

Publication date: 21.12.2023

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