Authors: E.G. Kuzin, V.N. Shahmanov

Title of the article: Mutual impact of mine workings and flow transport systems

Year: 2024, Issue: 2, Pages: 90-99

Branch of knowledge: 2.8.8 Geotechnology, mining machines

Index UDK: 622.23.05

DOI: 10.26730/1999-4125-2024-2-90-99

Abstract: In this paper, the relevance of taking into account influence of mining operations on flow transport systems, as well as the influence of conveyors on the state of underground mining operations is given. Underground mining machines include cleaning mechanized complexes and transport systems and have a certain technical symbiosis, and ultimately determine geotechnology of working in coal mines. The paper presents impact of mining on operation in-line transport systems (scraper and belt conveyors). It is noted that when soil heaving occurs in the workings of conveyor drifts, an increase in vibration at the rotor speed and subharmonic of rotor speed frequencies is first manifested. The method vibration diagnostics makes it possible to determine the occurrence of a negative influence at an early stage. The data on influence of working transport vehicles on condition of the mine workings in which they are located are presented. The main attention is currently being paid to issues of dedusting and dust suppression in workings during coal transportation by belt conveyors. There is a high probability of the impact of low-frequency waves of belt vibrations during frequent conveyor starts on the processes of formation of rock falls. However, this assumption requires additional research. The description of the georadiolocation method and the characteristic changes in the condition the roof, sides and soil of workings detected by this method are given. The results a survey the roof of workings prone to dynamic manifestations, soil prone to heaving, are shown. Subsequently, these assumptions were confirmed by field observations. The substantiation georadiolocation method for assessing the condition of concrete foundations of drive stations is given. Frequency spectra are shown during the processing of radarograms in specialized software, which make it possible to determine the moisture saturation of rocks. The presence of moisture in most cases has adverse consequences for mining. It is not recommended to place drive stations and conveyor control stations in wet mining areas. The paper considers and proposes the concept of taking into account the mutual influence of in-line transport systems and mining workings in which they are located to increase reliability and safety of mining production.

Key words: conveyor belts mining machines underground workings vibration diagnostics georadolocation mining safety soil heaving

Receiving date: 01.03.2024

Approval date: 15.05.2024

Publication date: 01.01.1970

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