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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">10.22227/1997-0935.2024.2.203-215</article-id><article-id custom-type="elpub" pub-id-type="custom">mgssuvest-186</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>Проектирование и конструирование строительных систем. Строительная механика. Основания и фундаменты, подземные сооружения</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Construction system design and layout planning. Construction mechanics. Bases and foundations, underground structures</subject></subj-group></article-categories><title-group><article-title>Оценка устойчивости грузоподъемных средств при разработке котлованов в стесненных условиях</article-title><trans-title-group xml:lang="en"><trans-title>Estimation of stability of lifting equipment during excavation of pits in cramped conditions</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8309-8511</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никитина</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikitina</surname><given-names>N. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Надежда Сергеевна Никитина — кандидат технических наук, профессор кафедры механики грунтов и геотехники</p><p>129337, г. Москва, Ярославское шоссе, д. 26</p><p>РИНЦ ID: 1138117</p></bio><bio xml:lang="en"><p>Nadezhda S. Nikitina — Candidate of Technical Sciences, Professor of the Department of Soil Mechanics and Geotechnics</p><p>26 Yaroslavskoe shosse, Moscow, 129337</p><p>ID RSCI: 1138117</p></bio><email xlink:type="simple">nsnikitina@mail.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>Мельников</surname><given-names>Н. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Melnikov</surname><given-names>N. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Николай Константинович Мельников — магистрант кафедры механики грунтов и геотехники</p><p>129337, г. Москва, Ярославское шоссе, д. 26</p></bio><bio xml:lang="en"><p>Nikolay K. Melnikov — master’s student of the Department of Soil Mechanics and Geotechnics</p><p>26 Yaroslavskoe shosse, Moscow, 129337</p></bio><email xlink:type="simple">k.wethepeople@yandex.ru</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>203</fpage><lpage>215</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Никитина Н.С., Мельников Н.К., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Никитина Н.С., Мельников Н.К.</copyright-holder><copyright-holder xml:lang="en">Nikitina N.S., Melnikov N.K.</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/186">https://www.vestnikmgsu.ru/jour/article/view/186</self-uri><abstract><sec><title>Введение</title><p>Введение. Показаны необходимость и место задачи оценки устойчивости грузоподъемных средств при разработке котлованов в стесненных условиях, характерных для городских территорий с плотной городской застройкой при прокладке подземных транспортных объектов на примере открытого способа работ по сооружению Московского метрополитена.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В целях исследования влияния геотехнических параметров на устойчивость и безопасность работы подъемных средств большой грузоподъемности рассмотрены два участка на территории г. Москвы и различные грузоподъемные краны компании Liebherr; проведено численное моделирование для определения перемещений и деформаций при различном расположении грузоподъемного крана относительно ограждения котлована.</p></sec><sec><title>Результаты</title><p>Результаты. С помощью численного моделирования с применением геотехнических программных комплексов PLAXIS 2D и PLAXIS 3D получены горизонтальные и вертикальные перемещения и общие деформации ограждения котлована, в том числе при использовании аэродромных гладких плит, а также при устройстве верхнего яруса распорной системы с использованием инвентарных плит 1,5 × 1,5 м.</p></sec><sec><title>Выводы</title><p>Выводы. Вопрос аналитического расчета для ситуаций, которые могут возникать при решении практических задач, в частности при разработке проекта производства работ при установке подъемного средства вблизи котлована с ограждением, актуален. Особое и первостепенное влияние на результат расчета оказывают поверхностные слои грунтов (до 6 м). При установке подъемного средства в условиях насыпного грунта природного происхождения обязательна его замена на более твердый или укладка дополнительных бетонных плит большей площади, уменьшающих непосредственную нагрузку на грунт. В особых случаях, при применении тяжелых автокранов грузоподъемностью 250 т и более, при условии, что ограждение выполнено без распорной системы («консольного типа»), численное моделирование целесообразно проводить индивидуально.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. The paper illustrates the necessity and place of the problem of stability assessment of lifting devices applied for excavation in cramped conditions, which are typical for urban areas with dense urban development when laying underground transport facilities on the example of the open method of works on the construction of the Moscow Metro.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Two sites on the territory of Moscow and different cranes of Liebherr company were considered in order to investigate the influence of geotechnical parameters on stability and safety of heavy lifting equipment. In addition, numerical modelling was carried out to determine displacements and deformations at different locations of the crane with respect to the excavation fence.</p></sec><sec><title>Results</title><p>Results. Horizontal and vertical displacements and total deformations of the pit fence were obtained by means of numerical modelling with the use of geotechnical software systems PLAXIS 2D and PLAXIS 3D. Among other things, we analyzed the usage of PAG slabs, as well as construction of the top tier of the spacing system with the use of 1.5 × 1.5 m inventory slabs.</p></sec><sec><title>Conclusions</title><p>Conclusions. The relevant issue is an analytical calculation for situations that can arise in solving practical problems, in particular, in the development of the project of works for the installation of a lifting device near the pit with a fence. Surface layers of soils (up to 6 m) have a special and primary influence on the result of the calculation. If the lifting device is installed in bulk soil of natural origin, it is mandatory to replace it with a harder soil or to lay additional concrete slabs with a larger area to reduce the direct load on the ground. In special cases, the numerical modelling should be performed separately for heavy truck cranes with a lifting capacity of 250 tons and more, provided that the guardrail is made without a spacing system (“cantilever type”).</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>геотехнические характеристики</kwd><kwd>грузоподъемный кран</kwd><kwd>инженерно-геологические условия</kwd><kwd>котлован</kwd><kwd>метрополитен</kwd><kwd>открытый способ работ</kwd><kwd>численное моделирование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>geotechnical characteristics</kwd><kwd>lifting crane</kwd><kwd>engineering and geological conditions</kwd><kwd>pit</kwd><kwd>underground</kwd><kwd>open method of works</kwd><kwd>numerical modelling</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">Голубев Г.Е. Метрополитены и город // Подземное пространство мира. 1995. № 2. 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