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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">nsojout</journal-id><journal-title-group><journal-title xml:lang="ru">Строительство: наука и образование</journal-title><trans-title-group xml:lang="en"><trans-title>Construction: Science and Education</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2305-5502</issn><publisher><publisher-name>ФГБОУ ВО «Национальный исследовательский Московский государственный строительный университет»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22227/2305-5502.2025.1.5</article-id><article-id custom-type="elpub" pub-id-type="custom">nsojout-231</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>Строительные конструкции. Основания и фундаменты. Технология и организация строительства. Проектирование зданий и сооружений. Инженерные изыскания и обследование зданий</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Building structures. Soils and foundations. Technology and organization of construction. Designing of buildings and constructions. Engineering survey and inspection of buildings</subject></subj-group></article-categories><title-group><article-title>Решение задачи о распределении температурных полей в грунтовом массиве численными методами</article-title><trans-title-group xml:lang="en"><trans-title>Solution of the problem of temperature field distribution in a soil massif by numerical methods</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>Пономарев</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Ponomarev</surname><given-names>A. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андрей Будимирович Пономарев — доктор технических наук, профессор, кафедра промышленного и гражданского строительства</p><p>199106, г. Санкт-Петербург, Васильевский остров, 21 линия, д. 2</p></bio><bio xml:lang="en"><p>Andrey B. Ponomarev — Doctor of Technical Sciences, Professor, Department of Industrial and Civil Engineering</p><p>build. 2, 21st Line, Vasilievsky Island, Saint Petersburg, 199106</p></bio><email xlink:type="simple">andreypab@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>Кораблев</surname><given-names>Д. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Korablyov</surname><given-names>D. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Денис Сергеевич Кораблев — ассистент, аспирант, кафедра геотехники</p><p>190005, г. Санкт-Петербург, 2-я Красноармейская ул., д. 4</p></bio><bio xml:lang="en"><p>Denis S. Korablyov — assistant, postgraduate student, Department of Geotechnics</p><p>4, 2nd Krasnoarmeyskaya st., St. Petersburg, 190005</p></bio><email xlink:type="simple">d.korablv@yandex.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>Полунин</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Polunin</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вячеслав Михайлович Полунин — кандидат технических наук, доцент, кафедра геотехники; старший научный сотрудник</p><p>190005, г. Санкт-Петербург, 2-я Красноармейская ул., д. 4;127238, г. Москва, Локомотивный проезд, д. 21</p></bio><bio xml:lang="en"><p>Vyacheslav M. Polunin — Candidate of Technical Sciences, Associate Professor, Department of Geotechnics; senior researcher</p><p>4, 2nd Krasnoarmeyskaya st., St. Petersburg, 190005;21, Locomotive passage, Moscow, 127238</p></bio><email xlink:type="simple">n1ce2u@yandex.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Санкт-Петербургский горный университет императрицы Екатерины II<country>Россия</country></aff><aff xml:lang="en">Empress Catherine II Saint Petersburg Mining University<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Санкт-Петербургский государственный архитектурно-строительный университет (СПбГАСУ)<country>Россия</country></aff><aff xml:lang="en">Saint Petersburg State University of Architecture and Civil Engineering (SPbGASU)<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Санкт-Петербургский государственный архитектурно-строительный университет (СПбГАСУ); Научно-исследовательский институт строительной физики Российской академии архитектуры и строительных наук (НИИСФ РААСН)<country>Россия</country></aff><aff xml:lang="en">Saint Petersburg State University of Architecture and Civil Engineering (SPbGASU); Scientific research institute of building physics of the Russian academy of architecture and building sciences<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>31</day><month>03</month><year>2025</year></pub-date><volume>15</volume><issue>1</issue><fpage>48</fpage><lpage>58</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Пономарев А.Б., Кораблев Д.С., Полунин В.М., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Пономарев А.Б., Кораблев Д.С., Полунин В.М.</copyright-holder><copyright-holder xml:lang="en">Ponomarev A.B., Korablyov D.S., Polunin V.M.</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://www.nso-journal.ru/jour/article/view/231">https://www.nso-journal.ru/jour/article/view/231</self-uri><abstract><sec><title>Введение</title><p>Введение. Практически четверть суши земного шара и две трети территории Российской Федерации, включая значительные площади с высокой концентрацией природных ресурсов и полезных ископаемых, находятся в зоне распространения многолетнемерзлых грунтов. Эти грунты обладают структурной неустойчивостью: температурные колебания приводят к радикальному снижению их прочностных характеристик и развитию значительных деформаций, что может критически влиять на безопасность и надежность зданий и сооружений. Географические особенности РФ обуславливают необходимость разработки и уточнения расчетных методов для определения температурных полей в основаниях грунтов криолитозоны. Рассматривается реализация задачи промерзания и оттаивания грунтового массива с использованием численных методов.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Представлены основные положения нелинейной математической модели, описывающей температурные превращения в грунтовом массиве с учетом фазового перехода поровой жидкости в лед и соответствующими теплофизическими процессами. Модель реализована в разрабатываемом авторами специализированном программном комплексе, реализующем метод конечных элементов.</p></sec><sec><title>Результаты</title><p>Результаты. Проведены численные расчеты температурных воздействий от возводимых зданий и сооружений на грунтовый массив в плоской подстановке. Рассматривались численные модели с учетом воздействия граничных условий различного типа на расчетную область. Результаты численных расчетов подробно сравнивались с результатами аналогичных расчетов, выполненных в апробированных программных комплексах.</p></sec><sec><title>Выводы</title><p>Выводы. Сформулированы ключевые механизмы численной модели, описывающей температурные превращения в грунтовом массиве, и предложена их реализация с использованием метода конечных элементов. Дополнительно представлены рекомендации о дальнейшем развитии численной модели, включая решение деформационной задачи об определении осадки оттаивания грунтового массива.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Almost a quarter of the Earth’s landmass and two thirds of the territory of the Russian Federation, including significant areas with a high concentration of natural resources and minerals, are located in the permafrost zone. These soils have structural instability: temperature fluctuations lead to a radical decrease in their strength characteristics and the development of significant deformations, which can critically affect the safety and reliability of buildings and structures. The geographical features of the Russian Federation necessitate the development and refinement of computational methods for determining temperature fields in the bases of cryolithozone soils. This paper discusses the implementation of the problem of freezing and thawing of a soil mass using numerical methods.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The main provisions of a nonlinear mathematical model describing temperature transformations in a soil body, taking into account the phase transition of a pore liquid into ice and the corresponding thermophysical processes, are presented. The model was implemented in a specialized software package developed by the authors that implements the finite element method.</p></sec><sec><title>Results</title><p>Results. As part of the study, numerical calculations of the temperature effects of buildings and structures under construction on the soil mass in a flat substitution were carried out. Numerical models were considered taking into account the impact of boundary conditions of various types on the computational domain. The results of numerical calculations were compared in detail with the results of similar calculations performed in proven software packages.</p></sec><sec><title>Conclusions</title><p>Conclusions. In this paper, the main mechanisms of a numerical model describing temperature transformations in a soil body are formulated and their implementation using the finite element method is proposed. Additionally, recommendations are presented on the further development of the numerical model, including the solution of the deformation problem of determining the precipitation of thawing of a soil body.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>метод конечных элементов</kwd><kwd>многолетнемерзлые грунты</kwd><kwd>промерзание</kwd><kwd>оттаивание</kwd><kwd>методы расчета</kwd><kwd>теплофизические расчеты</kwd></kwd-group><kwd-group xml:lang="en"><kwd>finite element method</kwd><kwd>permafrost soils</kwd><kwd>freezing</kwd><kwd>thawing</kwd><kwd>calculation methods</kwd><kwd>thermophysical calculations</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Авторы выражают благодарность НИИСФ РААСН за поддержку данного исследования.</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>The authors express their gratitude to Scientific research institute of building physics of the Russian academy of architecture and building sciences for the support of this study.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Карлов В.Д. 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