Floor stability in the first layer of mine workings when the stope is run through an impact zone of a geological fault

DOI: https://doi.org/10.30686/1609-9192-2024-3S-20-25

Читать на русскоя языкеP.V. Grechishkin1 , V.V. Sementsov2, N.Yu. Troshkov1, D.V. Osminin2, S.S. Onishchenko1
1 Kemerovo Branch, VNIMI JSC, Kemerovo, Russian Federation
2 VostNII Research Center JSC, Kemerovo, Russian Federation
Russian Mining Industry №3S / 2024 стр. 20-25

Abstract: The article discusses specific features of rock pressure manifestation in mine workings of the first layer in the impact zone of a geological fault and the bearing pressure from stoping operations. Factors are defined that cause the occurrence of such phenomena. The issue regarding classification of these phenomena, which are not defined in the "Guidelines for forecasting dynamic phenomena..." is stated. Specific features of the rock pressure are given depending on the structure and physical and mechanical properties of coal in different layers during slice mining of the seam. The experience of monitoring dynamic phenomena and creation of optimal methods to control the floor stability in the first layer of mine workings are described for the stoping operations in conditions of the Kuznetsk coal basin. Results of perennial instrumental survey of the rock mass using the Angel-M system with the electrometric mine equipment function applying the induced electromagnetic radiation method are described, as well as analysis of the seismic situation in the investigated area. A new term is proposed for classification of the recorded dynamic phenomena. A layout of boreholes for directional hydrofrac of the deep-buried rocks above the intermediate drift during the stoping period was designed, which allowed to effectively reduce the negative impact caused by the weight of the poorly caving rocks.

Keywords: stability of floor in mine workings, stope, geological faulting, rock pressure

For citation: Grechishkin P.V., Sementsov V.V., Troshkov N.Yu., Osminin D.V., Onishchenko S.S. Floor stability in the first layer of mine workings when the stope is run through an impact zone of a geological fault. Russian Mining Industry. 2024;(3S):20–25. (In Russ.) https://doi.org/10.30686/1609-9192-2024-3S-20-25

Article info

Received: 03.05.2024

Revised: 18.06.2024

Accepted: 27.06.2024

Information about the authors

Pavel V. Grechishkin – Cand. Sci. (Eng.), Director, Kemerovo Branch, VNIMI JSC, Kemerovo, Russian Federation; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Vyacheslav V. Sementsov – Cand. Sci. (Eng.), Executive Director, First Deputy CEO, VostNII Research Center JSC, Kemerovo, Russian Federation

Nikolay Yu. Troshkov – Deputy Director, Kemerovo Branch, VNIMI JSC, Kemerovo, Russian Federation

Dmitry V. Osminin – Cand. Sci. (Eng.), Head of the Mining Geomechanics Laboratory, VostNII Research Center JSC, Kemerovo, Russian Federation

Sergey S. Onishchenko – Engineer, Laboratory of Geomechanics and Mine Surveying Methods, Kemerovo Branch, VNIMI JSC, Kemerovo, Russian Federation

References

1. Brady H.G., Brown E.T. Rock Mechanics: For underground mining. 3rd ed. Springer; 2007. 628 p. https://doi.org/10.1007/978-1-4020-2116-9

2. Бабиюк Г.В. Управление надежностью горных выработок. Донецк: Світ книги; 2012. 420 с.

3. Мельник В.В., Кузнецов Ю.Н., Грохотов Ф.И., Мурин К.М., Буханик А.И., Дронов А.Н. Геомеханическая база обеспечения устойчивости горных выработок и эффективности технологии угледобычи. М.: ТулГУ; 2017. 127 с.

4. Петренко Ю.А., Соловьев Г.И., Касьяненко А.Л. Способ обеспечения устойчивости пород почвы на основе использования благоприятных горно-геологических условий. Известия Тульского государственного университета. Науки о Земле. 2020;(4):201–212. Petrenko Yu.A., Soloviev G.I., Kasyanenko A.L. Stabiliza tionmethod for floor rocks by using favorable geological conditions. Izvestiya Tulskogo Gosudarstvennogo Universiteta. Nauki o Zemle. 2020;(4):201–212. (In Russ.)

5. Du T. Research on roof management technology of mining in shallow buried coal seam use continuous miner. IOP Conference Series: Earth and Environmental Science. 2020;508:012043. https://doi.org/10.1088/1755-1315/508/1/012043

6. Горбачев А.С., Шилов В.И. Мониторинг массива горных пород по параметрам искусственного акустического сигнала. Прогноз геологических нарушений при добыче угля. Вестник научного центра по безопасности работ в угольной промышленности. 2022;(2):6–16. Gorbachev A.S., Shilov V.I. Monitoring of the rock mass by artificial acoustic signal parameters. geological disturbance forecast during coal mining. Vestnik Nauchnogo Tsentra po Bezopasnosti Rabot v Ugolnoy Promyshlennosti. 2022;(2):6–16. (In Russ.)

7. Дудин А.А., Лысенко М.В., Аушев Е.В., Карасев В.А., Ногаев С.Н., Валешный Р.Ю. и др. Опыт внедрения направленного гидроразрыва для управления труднообрушаемой кровлей на каменноугольных месторождениях АО «Воркутау-голь». Уголь. 2023;(8):87–95. https://doi.org/10.18796/0041-5790-2023-8-87-95 Dudin A.A., Lysenko M.V., Aushev E.V., Karasev V.A., Nogaev S.N., Valeshnyj R.Yu. et al. Experience of implementing directional hydraulic fracturing to manage poorly caving roofs at Vorkutaugol coal fields. Ugol’. 2023;(8):87–95. (In Russ.) https://doi.org/10.18796/0041-5790-2023-8-87-95

8. Prusek S., Rajwa S., Wrana A., Krzemien A. Assessment of roof fall risk in longwall coal mines. International Journal of Mining, Reclamation and Environment. 2017;31(8):558–574. https://doi.org/10.1080/17480930.2016.1200897

9. Семенцов В.В., Осминин Д.В., Нифанов Е.В. Устойчивость выемочных горных выработок при отработке пластов с труднообрушающимися кровлями. Вестник Научного центра ВостНИИ по промышленной и экологической безопасности. 2021;(3):14–25. https://doi.org/10.25558/VOSTNII.2021.47.12.002 Sementsov V.V., Osminin D.V., Nifanov E.V. Stability of excavating mine workings during development of formations with hard-to-break roofs. Bulletin of Scientific Centre VostNII for Industrial and Environmental Safety. 2021;(3):14–25. (In Russ.) https://doi.org/10.25558/VOSTNII.2021.47.12.002

10. Гречишкин П.В., Розонов Е.Ю., Клишин В.И., Опрук Г.Ю., Щербаков В.Н. Управление кровлей для повышения эффективности поддержания выработок, охраняемых податливыми целиками. Уголь. 2019;(10):35–41. https://doi.org/10.18796/0041-5790-2019-10-35-41 Grechishkin P.V., Rozonov E.Yu., Klishin V.I., Opruk G.Yu., Scherbakov V.N. Roof management to increase the efficiency of maintaining workings guarded by malleable pillars. Ugol’. 2019;(10):35–41. (In Russ.) https://doi.org/10.18796/0041-5790-2019-10-35-41