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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">mirtr</journal-id><journal-title-group><journal-title xml:lang="ru">Мир транспорта</journal-title><trans-title-group xml:lang="en"><trans-title>World of Transport and Transportation</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1992-3252</issn><publisher><publisher-name>Russian University of Transport (RUT)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30932/1992-3252-2023-21-5-4</article-id><article-id custom-type="elpub" pub-id-type="custom">mirtr-2560</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>НАУКА И ТЕХНИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SCIENCE AND ENGINEERING</subject></subj-group></article-categories><title-group><article-title>Оптимизация конструкции подводного плавающего транспортного сооружения</article-title><trans-title-group xml:lang="en"><trans-title>Optimisation of the Design of an Underwater Floating Transport Structure</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>Демидов</surname><given-names>И. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Demidov</surname><given-names>I. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Демидов Иван Михайлович – аспирант кафедры мостов и тоннелей</p><p>Москва</p></bio><bio xml:lang="en"><p>Demidov, Ivan M., Ph.D. student at the Department of Bridges</p><p>Moscow</p></bio><email xlink:type="simple">dmdvn@rambler.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>Поляков</surname><given-names>В. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Poliakov</surname><given-names>V. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Поляков Владимир Юрьевич – доктор технических наук, профессор кафедры мостов и тоннелей</p><p>Scopus Author ID: 57201723559</p><p>Web of Science ID: AAS‑4866-2021</p><p>Москва</p></bio><bio xml:lang="en"><p>Poliakov, Vladimir Yu., D.Sc. (Eng), Professor at the Department of Bridges and Tunnels</p><p>Moscow</p><p>Scopus Author ID: 57201723559</p><p>Web of Science ID: AAS‑4866-2021</p></bio><email xlink:type="simple">pvy55@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Российский университет транспорта</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian University of Transport Moscow</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>17</day><month>04</month><year>2024</year></pub-date><volume>21</volume><issue>5</issue><fpage>34</fpage><lpage>45</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Демидов И.М., Поляков В.Ю., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Демидов И.М., Поляков В.Ю.</copyright-holder><copyright-holder xml:lang="en">Demidov I.M., Poliakov V.Y.</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://mirtr.elpub.ru/jour/article/view/2560">https://mirtr.elpub.ru/jour/article/view/2560</self-uri><abstract><p>В статье рассматривается оптимизация внутренних усилий от постоянных нагрузок конструкции подводного пересечения для снижения локальных эффектов внутренних усилий.</p><p>Этот новый вид искусственных сооружений может найти применение при значительных глубинах пересекаемых водных преград. Такие сооружения будут востребованы для возведения подводных переходов в составе трансконтинентальных транспортных коридоров, таких как Север–Юг, Япония–Европа и других.</p><p>Целью предлагаемого исследования является оптимизация конструкции для решения проблемы перегрузок элементов сооружения. Для решения этой проблемы применялись методы строительной механики и численного эксперимента с использованием метода конечных элементов. Оптимизация позволяет снизить изгибающие моменты в зонах краевого эффекта в несколько раз и при применении веерной схемы закрепления. Это позволит применять унифицированные секции конструкции.</p><p>В статье обосновываются методы оптимизации и их верификация с помощью метода конечных элементов. В статье также рассматриваются проблемы живучести сооружения в случае отказа одного или двух анкерных закреплений. Изгибающие моменты значительно увеличиваются, однако движение можно не останавливать, так как нагрузка от поезда при железнодорожном движении и суммы постоянных нагрузок имеют противоположные знаки.</p></abstract><trans-abstract xml:lang="en"><p>The article considers the optimisation of internal forces from constant loads of the underwater floating transport structure to reduce the local effects of internal forces.</p><p>This new type of structures can be used at significant depths of intersected water obstacles. Such structures will be in demand for the construction of underwater crossings as part of transcontinental transport corridors such as North – South, Japan – Europe and others.</p><p>The purpose of the proposed study is to optimise the design to solve the problem of overloads of structural elements. To solve this problem, methods of structural mechanics and numerical experiment using the finite element method were used. Optimisation makes it possible to reduce bending moments in the zones of the edge effect when using a radial fastening scheme by several times. This will allow the use of unified sections of the structure.</p><p>The article substantiates optimisation methods and their verification using the finite element method. The article also discusses the problems of system survivability of a structure in the event of failure of one or two anchorages. Bending moments increase significantly, but the traffic could be continued since the load from the train and the sum of constant loads have opposite signs.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>транспортное строительство</kwd><kwd>погруженный плавающий тоннель</kwd><kwd>SFT</kwd><kwd>оптимизация</kwd><kwd>веерное прикрепление</kwd><kwd>глубоководные препятствия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>transport construction</kwd><kwd>submerged floating tunnel</kwd><kwd>SFT</kwd><kwd>optimisation</kwd><kwd>radial fastening</kwd><kwd>deep-sea obstacles</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">Поляков В. Ю., Хорев И. В., Демидов И. М. Современные подходы к исследованию и разработке подводных плавающих сооружений // Транспортные сооружения.– 2022.– Т.9.– №3.– Ст.7. 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