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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">10.17073/2500-0632-2021-1-31-41</article-id><article-id custom-type="elpub" pub-id-type="custom">gscience-263</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>Determination of bench, dump and road sliding wedge technological parameters</article-title><trans-title-group xml:lang="ru"><trans-title>Определение технологических параметров призмы обрушения уступов, отвалов и дорог</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7952-543X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чунуев</surname><given-names>И. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Chunuev</surname><given-names>I. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ишимбай Карыбаевич Чунуев – зав. кафедрой, проф. Председатель Правления Кыргызского Союза маркшейдеров, Президент Кыргызской горной ассоциации</p><p>SCOPUS ID: 6507330670</p><p>г. Бишкек</p></bio><bio xml:lang="en"><p>Ishimbay K. Chunuev– Head of Department, Professor, Chairman of the Board of the Kyrgyz Union of Surveyors, the President Kyrgyz Mining Association</p><p>SCOPUS ID: 6507330670</p><p>Bishkek</p></bio><email xlink:type="simple">IChunuev@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Левкин</surname><given-names>Ю. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Levkin</surname><given-names>Yu. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юрий Михайлович Левкин – д.т.н., проф., член Союза маркшейдеров России</p><p>г. Москва</p></bio><bio xml:lang="en"><p>Yuri M. Levkin – Dr. Sci. (Eng.), Member</p><p>Moscow</p></bio><email xlink:type="simple">lev5353@bk.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Болотбеков</surname><given-names>Ж.</given-names></name><name name-style="western" xml:lang="en"><surname>Bolotbekov</surname><given-names>Zh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Жусуп Болотбеков – аспирант</p><p>г. Бишкек</p></bio><bio xml:lang="en"><p>Zhusup Bolotbekov – PhD student</p><p>Bishkek</p></bio><email xlink:type="simple">Lawcast_kigga@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Кыргызский государственный университет геологии, горного дела и освоения природных ресурсов им. акад. У.А. Асаналиева (КГГУ)<country>Кыргызстан</country></aff><aff xml:lang="en">The Asanaliev Kyrgyz State University of Geology, Mining and Development of Natural Resources (KGGU)<country>Kyrgyzstan</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Союз маркшейдеров России<country>Россия</country></aff><aff xml:lang="en">Union of Surveyors of Russia<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>06</day><month>04</month><year>2021</year></pub-date><volume>6</volume><issue>1</issue><fpage>31</fpage><lpage>41</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Chunuev I.K., Levkin Y.M., Bolotbekov Z., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Чунуев И.К., Левкин Ю.М., Болотбеков Ж.</copyright-holder><copyright-holder xml:lang="en">Chunuev I.K., Levkin Y.M., Bolotbekov Z.</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/263">https://mst.misis.ru/jour/article/view/263</self-uri><abstract><p>Mine surveying in mining operations is of particular importance, since all technological processes of the full life cycle of a mining enterprise and, ultimately, its competitiveness depend on the surveying quality, efficiency and reliability. Organizations independently determine the structure of mine surveying services, taking into account the methods applied and the scale of mining. To ensure safe open-pit mining of minerals, it is necessary to permanently assess and monitor the pit bench and wall rock mass condition. Misjudgement of rock physical and mechanical properties, non-observance of the minerals mining and transportation process cycle, changes in climatic conditions and other problems lead to loss of stability of rocks in all parts of an open pit, including in the areas of ore production and mining and transport equipment operation. The existing practice shows that the effectiveness of an open pit wall and bench stability calculation can be achieved using a technique that should take into account the slope deformation and failure mechanism, as well as the nature of the stress-strain state of the open pit rock mass. The studies presented in the paper are based on comparative analysis of the sliding wedge parameters for benches, dumps and roads at open pits using analytical and graphical software packages, and taking into account the static load produced by dump trucks. The study findings allow to establish that: determination of the bench slope stability and the sliding wedge width, performed by the analytical method, gives higher accuracy results than those obtained by the graphical method; the bench slope stability and the sliding wedge width depend not only on the rock physical and mechanical condition, but also on the bench height, the dump truck (plus its freight load) weight per 1 linear meter of the placement area, the distance from the slope edge and other factors; the rock mass is stable and not subject to landslide phenomena for as long as the sum of the holding forces is greater than or equal to the sum of the shearing forces; when using large-sized transport equipment of nonstandard weight in open-pit mining, it is necessary to calculate the safe width of the sliding wedges, taking into account the loads on them (per 1 linear meter), the values of which can be 1.5–2.0 times higher than those calculated for the circular-cylindrical sliding surface.</p></abstract><trans-abstract xml:lang="ru"><p>Маркшейдерские работы при производстве горных работ имеют особое значение, так как от их качества, оперативности и достоверности зависят все технологические процессы полного жизненного цикла горного предприятия и в конечном итоге его конкурентоспособность. Организации самостоятельно определяют структуру маркшейдерских служб с учетом реализуемых технологий и масштабов добычи полезных ископаемых. Для обеспечения безопасной добычи полезного ископаемого открытым способом необходимо постоянно осуществлять оценку и контроль состояния массива горных пород уступов и бортов карьера. Недооценка физико-механических свойств горных пород, несоблюдение технологического цикла добычи и транспортировки полезных ископаемых, изменение климатических условий и другие приводят к нарушению устойчивости горных пород на всех участках карьера, в том числе на участках добычи и движения горнотранспортного оборудования. Существующая практика показывает, что эффективность расчёта устойчивости бортов и уступов карьеров достигается благодаря методике, которая должна учитывать механизм разрушения и деформации откосов, а также характер напряжён- но-деформированного состояния массива пород карьера. Исследования, представленные в работе, основываются на сравнительном анализе параметров призмы обрушения уступов, отвалов и дорог на карьерах аналитическим и графическим методами с помощью компьютерных программ, а также с учетом статической нагрузки от самосвалов. Результаты исследования позволили установить, что: определение устойчивости откосов уступов и ширины призмы обрушения, выполненные аналитическим методом, дает более высокие результаты точности, чем полученные графическим методом; устойчивость откосов уступов и ширина призмы обрушения зависят не только от физико-механического состояния горных пород, но также от высоты уступа, веса автосамосвала и его груза, приходящегося на 1 п. м площадки размещения, расстояния от бровки откоса и других факторов; массив горных пород находится в спокой- ном состоянии, не подверженном оползневым явлениям, до тех пор, пока суммы удерживающих сил больше или равны сумме сдвигающихся сил; при использовании на открытых горных работах крупно- габаритного транспортного оборудования нестандартного веса необходимо производить расчеты без- опасной ширины призм обрушения с учетом нагрузок от них из расчёта на 1 п. м, величины которых могут быть в 1,5–2,0 раза выше расчетных по кругло-цилиндрической поверхности скольжения.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>горное дело</kwd><kwd>карьер</kwd><kwd>открытые горные работы</kwd><kwd>уступ</kwd><kwd>призма обрушения</kwd><kwd>откос</kwd><kwd>отвал</kwd><kwd>самосвал</kwd><kwd>нагрузки</kwd><kwd>устойчивость</kwd></kwd-group><kwd-group xml:lang="en"><kwd>mining</kwd><kwd>open pit</kwd><kwd>open-pit mining</kwd><kwd>bench</kwd><kwd>sliding wedge</kwd><kwd>slope</kwd><kwd>dump</kwd><kwd>dump truck</kwd><kwd>loads</kwd><kwd>stability</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">Гордеев В. 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