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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">gscience</journal-id><journal-title-group><journal-title xml:lang="en">Mining Science and Technology (Russia)</journal-title><trans-title-group xml:lang="ru"><trans-title>Горные науки и технологии</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2500-0632</issn><publisher><publisher-name>The National University of Science and Technology MISiIS (NUST MISIS)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/2500-0632-2019-3-213-219</article-id><article-id custom-type="elpub" pub-id-type="custom">gscience-156</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MINING ROCK PROPERTIES. ROCK MECHANICS AND GEOPHYSICS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>СВОЙСТВА ГОРНЫХ ПОРОД. ГЕОМЕХАНИКА И ГЕОФИЗИКА</subject></subj-group></article-categories><title-group><article-title>Using Properties of Discrete Rocks to Optimize Backfiling</article-title><trans-title-group xml:lang="ru"><trans-title>Использование свойств дискретных пород для оптимизации процессов погашения выработанного пространства</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Голик</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Golik</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владикавказ</p></bio><bio xml:lang="en"><p>Vladikavkaz</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Буй</surname><given-names>Хуан Нам</given-names></name><name name-style="western" xml:lang="en"><surname>Bui</surname><given-names>Xuan Nam</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ханой</p></bio><bio xml:lang="en"/><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Масленников</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Maslennikov</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шахты</p></bio><bio xml:lang="en"><p>Shakhty</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Анищенко</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Anischenko</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нью-Йорк</p></bio><bio xml:lang="en"/><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Северо-Кавказский горно-металлургический институт ( СКГТУ)<country>Россия</country></aff><aff xml:lang="en">North-Caucasian Mining and Metallurgical Institute (SKGTU)<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Горно-Геологический Университет<country>Вьетнам</country></aff><aff xml:lang="en">Geology and Mining University<country>Viet Nam</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Донской государственный технический университет (филиал)<country>Россия</country></aff><aff xml:lang="en">Donskoi State Technical University<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru">Spetsmodulproekt, LLC<country>Соединённые Штаты Америки</country></aff><aff xml:lang="en">Spetsmodulproekt, LLC<country>United States</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>06</day><month>01</month><year>2020</year></pub-date><volume>4</volume><issue>3</issue><fpage>213</fpage><lpage>219</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Golik V.I., Bui X.N., Maslennikov S.A., Anischenko V.I., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Голик В.И., Буй Х.Н., Масленников С.А., Анищенко В.И.</copyright-holder><copyright-holder xml:lang="en">Golik V.I., Bui X.N., Maslennikov S.A., Anischenko V.I.</copyright-holder><license license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://mst.misis.ru/jour/article/view/156">https://mst.misis.ru/jour/article/view/156</self-uri><abstract><p>Backfilling optimization is carried out through the use of discrete rock properties. A new line of the process improvement is based on the phenomenon of performance of residual rock strength when jamming in the process of underground mining of deposits within faulted rocks. The research is aimed at reducing costs of backfilling while ensuring the work safety. The goal is achieved by comparing backfilling options depending on the formation of rock natural self-supporting arch. The study is based on the provisions of structural mechanics and continuum mechanics using the phenomenon of performance of residual rock strength due to rock jamming. The backfilling concept has been formulated. Information on geological structure of the studied rocky ore deposit of complicated tectonic structure and the roles of tectonic framework in the behavior of the ore-hosting rock mass in the course of opening by mine workings are presented. The findings of the study of the rock mass condition with determination of characteristic geotechnical domains are presented. Variants of the ore-hosting rock mass behavior are considered depending on natural jamming of elementary structural rock blocks within the arch. The possibility of combining sealing and setting-mix backfilling methods has been clarified. The area of the research findings application in mineral underground mining is recommended. The determination of dangerous displacement area boundaries in rock mass using the mechanism of discrete rock jamming allows achieving higher mining effectiveness while ensuring mining safety. The study results can be used in underground mining of minerals.</p></abstract><trans-abstract xml:lang="ru"><p>Оптимизация процессов погашения выработанного пространства осуществляется за счет использования свойств дискретных пород. Новое направление совершенствования технологий основано на феномене реализации остаточной прочности пород при заклинивании в процессе подземной разработки структурно-нарушенных скальных месторождений. Целью исследований является уменьшение затрат на погашение выработанного пространства при обеспечении безопасности работ. Цель достигается сравнением вариантов погашения в зависимости от образования свода естественного равновесия пород. Исследование базируется на основе положений строительной механики и механики сплошных сред с использованием феномена проявления остаточной прочности дискретных пород вследствие их заклинивания. Сформулирована концепция погашения выработанного пространства. Приведены сведения о геологическом строении исследуемого сложноструктурного месторождения скальных руд и роли тектонических структур в поведении рудовмещающего массива при вскрытии горными выработками. Приведены результаты исследования состояния массива с выделением характерных инженерно-геологических участков. Рассмотрены варианты поведения рудовмещающего массива в зависимости от естественного заклинивания элементарных структурных блоков пород в пределах свода. Уточнена возможность комбинирования способов погашения изоляцией и закладкой твердеющими смесями. Рекомендована область применения результатов исследования при разработке месторождений твердых полезных ископаемых подземным способом. Определение границ области опасных сдвижений в толще пород на основе использования механизма заклинивания дискретных пород обеспечивает возможность отработки месторождений с большей эффективностью при обеспечении безопасности горных работ. Результаты исследования могут быть востребованы при подземной добыче твердых полезных ископаемых.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>порода</kwd><kwd>прочность</kwd><kwd>погашение</kwd><kwd>выработанное пространство</kwd><kwd>заклинивание</kwd><kwd>управление</kwd><kwd>безопасность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>rock</kwd><kwd>strength</kwd><kwd>backfilling</kwd><kwd>goaf</kwd><kwd>jamming</kwd><kwd>management</kwd><kwd>safety</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Gattinoni P., Pizzarotti E. M., Scesi L. Engineering Geology for Underground Works. Springer, 2014. -312 p.</mixed-citation><mixed-citation xml:lang="en">Gattinoni P., Pizzarotti E. M., Scesi L. Engineering Geology for Underground Works. 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