Prediction of hazardous phenomena within operating coal seam for the Yalevsky mine field

Meshkov, A.A.; Popov, Anton; Popova, Yu.V.; Smolin, A.V.; Shabarov, A. N.

doi:10.25018/0236-1493-2020-2-0-22-33

Cited by 3 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Anchor supports in comparison with frame ones have a number of advantages that significantly reduce production costs and increase labor productivity [11,[27][28][29]. The use of anchor supports allows 5-9 times to reduce the consumption of rolled metal, timber, concrete; 3-5 times to increase the productivity of work when fixing workings; 2-3 times to increase the rate of tunneling of workings; 1.5-2.2 times or more to reduce the cost of ensuring a technologically satisfactory condition of the workings during its lifetime [30][31][32].…”

mentioning

confidence: 99%

Development of resource-saving technology for excavation of flat-lying coal seams with tight roof rocks (on the example of the Quang Ninh coal basin mines)

Zubov

2022

PMI

View full text Add to dashboard Cite

It is shown that the creation of the variants of resource-saving systems for the development of long-column mining is one of the main directions for improving the technological schemes for mining operations in the mines of the Kuang Nin coal basin. They provide a reduction in coal losses in the inter-column pillars and the cost of maintaining preliminary workings fixed with anchorage. The implementation of these directions is difficult (and in some cases practically impossible) when tight rocks are lying over the coal seam, prone to significant hovering in the developed space. In the Quang Ninh basin, 9-10 % of the workings are anchored, the operational losses of coal reach 30 % or more; up to 50 % of the workings are re-anchored annually. It is concluded that the real conditions for reducing coal losses and the effective use of anchor support as the main support of reusable preliminary workings are created when implementing the idea put forward at the St. Petersburg Mining University: leaving the coal pillar of increased width between the reused mine working and the developed space and its subsequent development on the same line with the stoping face simultaneously with the reclamation of the reused mine working.

show abstract

mentioning

confidence: 99%

Development of resource-saving technology for excavation of flat-lying coal seams with tight roof rocks (on the example of the Quang Ninh coal basin mines)

Zubov

2022

PMI

View full text Add to dashboard Cite

show abstract

“…Для прогноза геомеханической обстановки широкое применение находит метод численно го моделирования с использованием CaE-пакетов [9,10,11]. Сейсмический мониторинг, в свою оче редь, реализуется при помощи инструментальных наблюдений с использованием систем монито ринга, таких как gItS, причем особую роль игра ет принцип обработки данных [12,13].…”

unclassified

Monitoring of the Stress State by Seismic and Numerical Methods at the Mines of JSC «vorkutaugol»

Mulev¹,

Rukavishnikov²,

Moroz³

et al. 2022

Ugol'

View full text Add to dashboard Cite

В статье приведена историческая справка о развитии системы сейсмического мониторинга «GITS» на шахтах АО «Воркутауголь», описание действующих модификаций системы и перспективы ее дальнейшего развития. Приведены результаты исследований взаимосвязи сейсмической активности с горно-геологическими и техническими условиями добычи. Также в статье представлены результаты численного моделирования для прогнозирования зон повышенного горного давления при зависании основной кровли.

show abstract

“…Основная технология подземной угледобычи в России -разработка пластов длинными комплексно механизированными очистными забоями -лавами [1,4,29] -характеризуется высоким уровнем механизации и безопасности горных работ [28,30,31]. Применение в очистных забоях современного высокопроизводительного оборудования обеспечивает работу лав с рекордными показателями суточной и месячной производительности, превышающими показатели лучших очистных забоев в ведущих угледобывающих странах [5,6,28]. Так в 2017-2018 гг.…”

unclassified

Improving the efficiency of the technology and organization of the longwall face move during the intensive flat-lying coal seams mining at the Kuzbass mines

Мешков¹,

Kazanin

Sidorenko

2021

PMI

View full text Add to dashboard Cite

The reasons for the lag of the indicators of the leading Russian coal mines engaged in the longwall mining of the flat-lying coal seams from similar foreign mines are considered. The analysis of the efficiency of the longwall face move operations at the JSC SUEK-Kuzbass mines was carried out. A significant excess of the planned deadlines for the longwall face move during the thick flat-lying seams mining, the reasons for the low efficiency of disassembling operations and the main directions for improving the technology of disassembling operations are revealed. The directions of ensuring the operational condition of the recovery room formed by the longwall face are considered. The recommended scheme of converged coal seams mining and a three-dimensional model of a rock mass to justify its parameters are presented. Numerical studies using the finite element method are performed. The results of modeling the stress-strain state of a rock mass in the vicinity of a recovery room formed under conditions of increased stresses from the boundary part of a previously mined overlying seam are shown. The main factors determining the possibility of ensuring the operational condition of the recovery rooms are established. It is shown that it is necessary to take into account the influence of the increased stresses zone when choosing timbering standards and organizing disassembling operations at a interbed thickness of 60 m or less. A sufficient distance from the gob of above- or undermined seams was determined to ensure the operational condition of the recovery room of 50 m, for the set-up room – 30 m. Recommendations are given for improving technology and organization of the longwall face move operations at the mines applied longwall mining of flat-lying coal seams with the formation of a recovery room by the longwall face.

show abstract

Prediction of hazardous phenomena within operating coal seam for the Yalevsky mine field

Cited by 3 publications

References 0 publications

Development of resource-saving technology for excavation of flat-lying coal seams with tight roof rocks (on the example of the Quang Ninh coal basin mines)

Development of resource-saving technology for excavation of flat-lying coal seams with tight roof rocks (on the example of the Quang Ninh coal basin mines)

Monitoring of the Stress State by Seismic and Numerical Methods at the Mines of JSC «vorkutaugol»

Improving the efficiency of the technology and organization of the longwall face move during the intensive flat-lying coal seams mining at the Kuzbass mines

Contact Info

Product

Resources

About