##plugins.themes.academic_pro.article.main##
Abstract
In underground mining of deep horizons, rock pressure can manifest itself in any form, posing a serious threat to the lives of workers, disrupting the normal course of mining operations and reducing the efficiency of mining. The solution to the problem of controlling rock pressure is becoming very important for underground mines leading the development of vein deposits at a depth of more than 250 m. The aim of the work is to develop and substantiate technological schemes that ensure safe and efficient development of deposits in difficult mining and mechanical conditions. In the work, the factors of redistribution and dangerous concentration of stresses in the developed ore massif are established, methods of rock mass management in difficult geomechanical conditions are studied, their advantages and disadvantages are revealed. It has been determined that the sublevel development system with the combined use of existing methods for controlling rock pressure and the use of self-propelled equipment in the production processes of this system is currently one of the progressive ones in improving and expanding the scope of its application. On the example of the Zarmitan gold ore zone, the variants of technological schemes of a sublevel mining system combining a combination of different methods of controlling rock pressure, allowing minimizing the disadvantages of one using the advantages of others, are considered. sublevel mining systems with artificial supporting retaining pillars of polygonal shape and sublevel development systems with artificial supporting retaining columnar pillars are proposed, which allow reducing the loss of ore in intervening pillars, ceilings and secondary dilution. In addition, artificial pillars, perceiving compressive-tensile stresses to themselves, prevent their concentrations and create safe conditions for working out adjacent and lower horizons
Keywords
##plugins.themes.academic_pro.article.details##
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
References
- Dordzhiev D. Yu. Ensuring the stability of mine workings in the ore massif during the development of rock-burst hazardous uranovix deposits (by the example of the Antey site). Abstract of dissertation for the degree of candidate of technical sciences. - St. Petersburg, 2011.
- Avdeev A.N., Sosnovskaya E.L. Investigation of the stress-strain state of constructive elements of the development system sblijennix krutopadayushix jil // g. Irkutsk. - Bulletin of the Siberian Branch of the Earth Science Section of the Russian Academy of Natural Sciences, 2015. - No. 1 (50). - P. 67-75.
- Potvin Y., Wesseloo J. Towards an understanding of dynamic demand on ground support // Journal of the Southern African Institute of Mining and Metallurgy. 2013. Vol. 113. No. 12. P. 913–922.
- Sokolov I.V., Antipin Yu.G., Baranovsky K.V. Improving the technology of underground mining of gold deposits // Yekaterinburg. Collection INGEO-2019 (1) .- P.27-32.
- Potapchuk MI Geomexanic justification of safety measures in the development of children's deposits in eastern Primorye. Abstract of dissertation for the degree of candidate of technical sciences. - Khabarovsk, 2012.
- Khakimov Sh.I., Tazhiev U.R., Nasriddinov A.Sh. Analysis of underground mining with steeply dipping stranded cores with separating rock bodies // Gornyi Vestnik of Uzbekistan. - Navoi, 2015 - No. 3 (62). - S. 17-19.
- Chilala G.S., de Assuncao J., Harris R., Stevenson R.M. “Initial Effects of Improved Drilling and Blasting Techniques on Downhole Stability at the Bulyankhulu Mine in Akatsia,” in Y. Potvin (ed.), Proceedings of the International Workshop on Design Methods in Underground Mining. - Perth: Australian Center for Geomechanics, 2015. - pp. 241–254.
- Trubetskoy K.N.,. Galchenko Yu.P., Sabyanin G.V. Methodology for constructing innovative technologies for the development of living places. FTPRPI. - 2011. - No. 4. - P. 86 - 94.
- Sokolov IV, Baranovskiy KV Substantiation of underground technology for completion of reserves of gold deposits. Subsoil use problems, no. 2, 2018 st. 12-19.
- Kaplunov DR, Rylnikova MV, Radchenko DN .. Expansion of the raw materials base of the mining enterprise on the basis of the complex use of mineral resources of deposits. // Mining Journal, 2013, No. 2, p. 86-90.
- Ping Wang, Huiqiang Lia, Yan Lib. Bo Cheng Stability analysis of backfilling in subsiding area and optimization of the stoping sequence // Journal of Rock Mechanics and Geotechnical Engineering. – 2013. – Vol. 5, issue 6. - R. 478– 485.
- Sozonov K.V. Stableness improvement of the excavations during the chamber-and-pillar development of Yakovlevsky Deposit reserves. Geomechanics and Geodynamics of Rock Masses: Proceedings of the 2018 European Rock Mechanics Symposium. Volume 1. pp. 1653-1657.
- Abin Thomas C A, Jayalakshmi S, Jerin K Antony, Kavya S Kumar, Sreepriya K V, Development of Self Compacting Concrete Mix and Analysis of Compressive Strength by Replacement of Fines with Iron Ore Fines., Int. J. Civ. Eng. Technol. 8(4), 2017, pp. 1928.
- Veenstra R.L. A methodology for predicting dilution of cemented paste backfill', in Y Potvin (ed.), Proceedings of the International Seminar on Design Methods in Underground Mining. – Perth: Australian Centre for Geomechanics, 2015. - P. 527-539.
- Raimdzhanov B.R., Mukhitdinov A.T., Bekmurzaev BB, Khasanov A.R. Justification and selection of a development system for the development of ore bodies to the lower level of the horizon at the Zarmitan mine. ISSN 0236-1493 // Mining information and analytical bulletin. –M.: "Gornaya Kniga", 2018. - №1. - S. 41–49.
- Raimdzhanov B.R., Mukhitdinov A.T., Khasanov A.R. Increasing the efficiency of the technology for the development of low-power mining steeply-padayushiks rapprochement mines of bodies in sloeniks mining-geological and mining conditions // Mining information and analytical bulletin. - M .: "Gornaya Kniga", 2018. - No. 10. - S.67-78.
- Lizunkin V.M. ,. Medvedev V.V. ,. Podoprigora V.E. ,. Ovseichuk V.A., Galinov Yu.N. Improvement of poledyniks systems with squine breaking during the development of deposits of the Strelstovskaya group // New century - new discoveries: materials of the Mezhregion. conf., dedicated. To the 40th anniversary of ZabNII. - Chita, 2001. - pp. 349–351.
- Baranovsky K.V., Roikov A.A. Substantiation of technology with self-contained equipment in the development of the lower horizons of the Urup copper pyrite location // Problems of subsoil use, 2015. - No. 3. - S. 36-43.
- Lobanov V.S., Raksimdzhanov A.A., Kiselenko A.S., Kazakov B.I., Vakhitov R.R. Technology and directions of improving the "Charmitan" deposits using self-coding equipment at the Zarodnik mine // Uzbek embryo. - Navoi, 2009. - No. 4 (39). - S. 38-40.
- Khasanov Nurmukhammad. The Peculiarities of The Organization of Military-Patriotic Education in Secondary Schools. INTERNATIONAL JOURNAL ON HUMAN COMPUTING STUDIES. Volume: 03 Issue: 2 March-April2021
- Khasanov Nurmukhammad. Organizing and carrying out military-patriotic education in educational institutions of the republic of Uzbekistan. INTERNATIONAL ENGINEERING JOURNAL FOR RESEARCH & DEVELOPMENT. Vol. 5 No. Conference (2020): ICDSIIL-20
- KHASANOV NURMUKHAMMAD. USING OF INTERACTIVE METHODS IN MOTHERLAND LESSONS. СТУДЕНЧЕСКИЙ. Учредители: Общество с ограниченной ответственностью "Сибирская академическая книга"
- eISSN: 2541-9412.
- Khasanov Nurmukhammad Khaydarali Ugli. FACTORS OF EDUCATING YOUNG PEOPLE IN THE SPIRIT OF PATRIOTISM. INTERNATIONAL JOURNAL ON HUMAN COMPUTING STUDIES. Volume: 03 Issue: 4 |Jun 2021.
- Khasanov Nurmukhammad Khaydarali Ugli. THE IMPORTANCE OF MILITARY WILL IN THE PROCESS OF TRAINING OF RESERVE OFFICERS. Academicia Globe: Inderscience Research. Vol. 2 No. 04 (2021): academiascience.
- Nurmukhammad, Khasanov. "Patriotism is a sign of spiritual maturity." ACADEMICIA: An International Multidisciplinary Research Journal 10.7 (2020): 585-588.
- KHASANOV NURMUKHAMMAD KHAYDARALI UGLI. "The Role of Family, Community and Education in the Development of Patriotic Spirit in Youth." JournalNX 7.1: 311-314.
- KHASANOV NURMUKHAMMAD KHAYDARALI. "Patriotism is a Holy Duty of the Uzbekistan Youth." JournalNX 6.07: 281-283.
- KHASANOV NURMUKHAMMAD KHAYDARALI UGLI. PATRIOTISM IS A HOLY DUTY OF THE UZBEKISTAN YOUTH. JournalNX- A Multidisciplinary Peer Reviewed Journal ISSN No: 2581 - 4230 VOLUME 6, ISSUE 7, July -2020