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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">10.17073/2500-0632-2024-11-332</article-id><article-id custom-type="elpub" pub-id-type="custom">gscience-850</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>MINERAL RESOURCES EXPLOITATION</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>РАЗРАБОТКА МЕСТОРОЖДЕНИЙ ПОЛЕЗНЫХ ИСКОПАЕМЫХ</subject></subj-group></article-categories><title-group><article-title>Justification of the optimal width of a front bank</article-title><trans-title-group xml:lang="ru"><trans-title>Обоснование оптимальной ширины дражного забоя</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1201-2693</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тальгамер</surname><given-names>Б. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Talgamer</surname><given-names>B. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Борис Леонидович Тальгамер – доктор технических наук, профессор, заведующий кафедрой разработки месторождений полезных ископаемых</p><p>г. Иркутск</p><p>Scopus ID 57196258850</p></bio><bio xml:lang="en"><p>Boris L. Talgamer – Dr. Sci. (Eng.), Professor, Head of the Department of Mineral Deposit Development</p><p>Irkutsk</p><p>Scopus ID 57196258850</p><p> </p></bio><email xlink:type="simple">talgamer@ex.istu.edu</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0006-5298-7929</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мешков</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Meshkov</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иван Анатольевич Мешков – аспирант кафедры разработки месторождений полезных ископаемых, инженер научно-исследовательской части</p><p>г. Иркутск</p></bio><bio xml:lang="en"><p>Ivan A. Meshkov – PhD-Student, Department of Mineral Deposit Development, Research Engineer</p><p>Irkutsk</p><p> </p><p> </p></bio><email xlink:type="simple">pach.van@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6833-7860</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мурзин</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Murzin</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Николай Владимирович Мурзин – кандидат технических наук, доцент кафедры разработки месторождений полезных ископаемых</p><p>г. Иркутск</p><p>Scopus ID 57217845755</p></bio><bio xml:lang="en"><p>Nikolay V. Murzin – Cand. Sci. (Eng.), Associate Professor of the Department of Mineral Deposit Development</p><p>Irkutsk</p><p>Scopus ID 57217845755</p></bio><email xlink:type="simple">murzinnv@ex.istu.edu</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8799-7269</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рославцева</surname><given-names>Ю. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Roslavtseva</surname><given-names>Yu. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юлия Геннадьевна Рославцева – кандидат технических наук, доцент кафедры разработки месторождений полезных ископаемых</p><p>г. Иркутск</p><p>Scopus ID 57208126909</p></bio><bio xml:lang="en"><p>Yulia G. Roslavtseva – Cand. Sci. (Eng.), Associate Professor of the Department of Mineral Deposit Development</p><p>Irkutsk</p><p>Scopus ID 57208126909</p></bio><email xlink:type="simple">ryg@ex.istu.edu</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Иркутский национальный исследовательский технический университет<country>Россия</country></aff><aff xml:lang="en">Irkutsk National Research Technical University<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>02</day><month>07</month><year>2025</year></pub-date><volume>10</volume><issue>2</issue><fpage>99</fpage><lpage>108</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Talgamer B.L., Meshkov I.A., Murzin N.V., Roslavtseva Y.G., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Тальгамер Б.Л., Мешков И.А., Мурзин Н.В., Рославцева Ю.Г.</copyright-holder><copyright-holder xml:lang="en">Talgamer B.L., Meshkov I.A., Murzin N.V., Roslavtseva Y.G.</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/850">https://mst.misis.ru/jour/article/view/850</self-uri><abstract><p>Reducing the cost of finished products by using the most economically advantageous processes and techniques for the extraction and beneficiation of minerals is one of the most pressing tasks in mining industry. The width of front bank has a significant impact on the cost of placer deposits mining. Existing methods for calculating the most advantageous width of front bank are based on ensuring dredge maximum productivity that is justified in placer bulk mining. With increasing depth of a placer deposit occurrence and thickness of overburden, traditional methods for calculating the optimal width of a front bank do not ensure minimizing production costs. The aim of the research is to determine the most advantageous width of a front bank, taking into account a peat (overburden) thickness and acceptable stripping flow sheet. The idea behind this work is that the optimal width of a front bank should be determined not only based on the maximum productivity of a dredge, but also on the condition of ensuring the lowest cost of extraction of valuable components (taking into account the productivity of all mining equipment and the stripping costs). The study analyzes the impact of placer parameters (peat thickness and productive layer thickness, front bank width) on the cost of sand extraction and processing, and identifies the dependencies of mining parameters on technical and economic performance. The study examined more than 100 process flow sheets for the integrated operation of stripping and mining equipment and provided an economic assessment of their effectiveness. Recommended values for correction factors for determining the optimum front bank width are given. The study findings serve as methodological material for substantiating the parameters of a placer mining system.</p></abstract><trans-abstract xml:lang="ru"><p>Снижение себестоимости готовой продукции за счет применения наиболее экономически выгодных процессов и технологий добычи и обогащения полезных ископаемых – одна из актуальных задач в горнодобывающей отрасли промышленности. Значительное влияние на себестоимость добычи полезного ископаемого россыпей оказывает ширина дражного забоя. Существующие методы расчета наивыгоднейшей ширины забоя драги основаны на обеспечении ее максимальной производительности, что оправдано при валовой разработке россыпей. С увеличением глубины залегания россыпи и мощности вскрышных пород традиционные методы расчета оптимальной ширины дражного забоя не обеспечивают минимальной себестоимости добычных работ. Целью исследований является обоснование наивыгоднейшей ширины забоя драги с учетом мощности торфов и приемлемых технологических схем вскрышных работ. Идея работы заключается в том, что оптимальная ширина забоя должна устанавливаться не только исходя из максимальной производительности драги, но и из условия обеспечения наименьшей себестоимости добычи ценных компонентов (с учетом производительности всего горного оборудования и себестоимости вскрышных работ). В исследовании проводится анализ влияния параметров россыпи (мощности торфов и продуктивного пласта, ширины забоя) на себестоимость добычи и переработки песков, а также выявление зависимостей влияния параметров горных работ на технико-экономические показатели. В рамках исследования было рассмотрено более 100 технологических схем комплексной работы вскрышного и добычного оборудования и дана экономическая оценка их эффективности. Приведены рекомендуемые значения поправочных коэффициентов к определению оптимальной ширины забоя драги. Результаты исследования служат методическим материалом для обоснования параметров дражной системы разработки россыпей.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>россыпи</kwd><kwd>драгирование</kwd><kwd>ширина забоя</kwd><kwd>вскрышные работы</kwd><kwd>производительность драги</kwd><kwd>себестоимость добычных работ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>placer deposits</kwd><kwd>dredging</kwd><kwd>front bank width</kwd><kwd>stripping</kwd><kwd>dredge productivity</kwd><kwd>mining costs</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">Нафиков Р. З., Кисляков В. Е. Технология дражной разработки россыпных месторождений в условиях Крайнего Севера. Красноярск: Сибирский федеральный университет; 2021. 184 с.</mixed-citation><mixed-citation xml:lang="en">Nafikov R. Z., Kislyakov V. E. 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