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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="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">mgssuvest</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник МГСУ</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik MGSU</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1997-0935</issn><issn pub-type="epub">2304-6600</issn><publisher><publisher-name>Moscow State University of Civil Engineering (National Research University) (MGSU)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22227/1997-0935.2024.2.281-293</article-id><article-id custom-type="elpub" pub-id-type="custom">mgssuvest-191</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="ru"><subject>Гидравлика. Геотехника. Гидротехническое строительство</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Hydraulics. Geotechnique. Hydrotechnical construction</subject></subj-group></article-categories><title-group><article-title>Анализ фильтрации через земляную плотину с диафрагмой на непроницаемом основании с помощью программы PLAXIS 2D</article-title><trans-title-group xml:lang="en"><trans-title>Analysis of seepage through an earth dam with a diaphragm on an impermeable foundation using PLAXIS 2D</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6900-2704</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Орехов</surname><given-names>Г. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Orekhov</surname><given-names>G. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Генрих Васильевич Орехов — доктор технических наук, доцент, профессор кафедры гидравлики и гидротехнического строительства</p><p>129337, г. Москва, Ярославское шоссе, д. 26</p></bio><bio xml:lang="en"><p>Genrikh V. Orekhov — Doctor of Technical Science, Associate Professor, Professor of the Department of Hydraulics and Hydraulic Structures</p><p>26 Yaroslavskoe shosse, Moscow, 129337</p></bio><email xlink:type="simple">OrehovGV@mgsu.ru</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>Кыонг</surname><given-names>Чан Мань</given-names></name><name name-style="western" xml:lang="en"><surname>Manh Cuong</surname><given-names>Tran</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чан Мань Кыонг — аспирант кафедры гидравлики и гидротехнического строительства</p><p>129337, г. Москва, Ярославское шоссе, д. 26</p></bio><bio xml:lang="en"><p>Tran Manh Cuong — postgraduate student of the Department of Hydraulics and Hydraulic Structures</p><p>26 Yaroslavskoe shosse, Moscow, 129337</p></bio><email xlink:type="simple">cuonghtcs@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский Московский государственный строительный университет (НИУ МГСУ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow State University of Civil Engineering (National Research University) (MGSU)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>15</day><month>03</month><year>2024</year></pub-date><volume>19</volume><issue>2</issue><fpage>281</fpage><lpage>293</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Орехов Г.В., Кыонг Ч., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Орехов Г.В., Кыонг Ч.</copyright-holder><copyright-holder xml:lang="en">Orekhov G.V., Manh Cuong T.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" 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://www.vestnikmgsu.ru/jour/article/view/191">https://www.vestnikmgsu.ru/jour/article/view/191</self-uri><abstract><sec><title>Введение</title><p>Введение. В современных условиях изменения климата защита ирригационных сооружений, особенно плотин, является важной задачей. Фильтрация — одна из основных причин разрушения плотин, поэтому требуется исследовать режимы фильтрации и искать решения для предотвращения разрушений сооружений в результате фильтрационных процессов в земляных плотинах. Анализ фильтрационных режимов в теле грунтовых плотин производится с помощью математического моделирования с использованием численных моделей конечных элементов. В качестве объекта исследования принята однородная земляная плотина с несовершенной диафрагмой на непроницаемом основании. Цель исследования — определить влияние относительных параметров: высоты диафрагмы, расположения диафрагмы в теле плотины, их количества. Анализируются влияние параметров диафрагмы на фильтрационный расход, проходящий через тело плотины, и ее скорость.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Исследование выполнено с помощь численного моделирования в программном комплексе PLAXIS 2D. Модель плотины построена на основе типовых конструктивных решений, применяемых на практике.</p></sec><sec><title>Результаты</title><p>Результаты. Размещение диафрагмы в теле плотины снижает фильтрационный поток через плотину, а высота диафрагмы обратно пропорциональна расходу фильтрации. Максимальная фильтрационная скорость зафиксирована на верхнем конце диафрагмы, ее величина прямо пропорциональна высоте диафрагмы. При смещении диафрагмы в сторону нижнего бьефа фильтрация несколько уменьшается. Значение максимальной скорости увеличивается при смещении диафрагмы в сторону нижнего бьефа.</p></sec><sec><title>Выводы</title><p>Выводы. Разрушение плотины из-за фильтрации может привести к серьезному материальному ущербу и гибели людей. Внедрение методов, снижающих фильтрационные расходы и скорость фильтрации, важно для обеспечения безопасных условий работы плотины.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. In the current climate change conditions, the protection of irrigation structures, especially dams, is a very important task. Seepage is one of the main causes of dam failure, so it is very important to investigate the seepage regimes and find solutions to prevent dam failures as a result of the seepage processes in earth dams. In this paper, the analysis of the seepage regimes in the body of earth dams is performed by means of mathematical modelling using numerical finite element models. A homogeneous earth dam with an imperfect diaphragm on an impermeable foundation is taken as the object of study. The purpose of the study is to determine the influence of relative parameters: diaphragm height, diaphragm location in the dam body, their number. In addition, the influence of diaphragm parameters on the seepage flow through the dam body and its velocity is analyzed.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The study was carried out with the help of numerical modelling using PLAXIS 2D software. The model of the dam is based on typical design solutions used in practice.</p></sec><sec><title>Results</title><p>Results. The results of the study show that the placement of the diaphragm in the dam body reduces the seepage flow through the dam and the height of the diaphragm is inversely proportional to the seepage rate. The maximum seepage rate was recorded at the upper end of the diaphragm and its magnitude is directly proportional to the height of the diaphragm. When the diaphragm is displaced towards the downstream side, the filtration rate slightly decreases. The value of maximum velocity increases when the diaphragm is displaced towards the downstream end.</p></sec><sec><title>Conclusions</title><p>Conclusions. Dam failure due to seepage can result in serious property damage and loss of life. Implementing methods that reduce seepage discharge and seepage velocities is important to ensure safe dam operating conditions</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>фильтрация</kwd><kwd>земляная плотина</kwd><kwd>метод конечных элементов</kwd><kwd>несовершенная диафрагма</kwd><kwd>разрушение плотины</kwd><kwd>фильтрационный расход</kwd><kwd>скорость фильтрации</kwd></kwd-group><kwd-group xml:lang="en"><kwd>seepage</kwd><kwd>earthen dam</kwd><kwd>finite element method</kwd><kwd>diaphragm</kwd><kwd>dam failure</kwd><kwd>seepage discharge</kwd><kwd>seepage velocity</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">Гарелина С.А., Давлатшоев С.К., Латышенко К.П., Обиджони Ш.К., Курбонов Н.Б. Повышение безопасности гидротехнических сооружений. Часть 2. На примере водохранилища Нурекской ГЭС на реке Вахш. 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