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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">vestnikvniizht</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Научно-исследовательского института железнодорожного транспорта (ВЕСТНИК ВНИИЖТ)</journal-title><trans-title-group xml:lang="en"><trans-title>RUSSIAN RAILWAY SCIENCE JOURNAL</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2223-9731</issn><issn pub-type="epub">2713-2560</issn><publisher><publisher-name>Joint Stock Company "Railway Research Institute"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21780/2223-9731-2017-76-1-3-9</article-id><article-id custom-type="elpub" pub-id-type="custom">vestnikvniizht-125</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>Другое</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Miscellaneous</subject></subj-group></article-categories><title-group><article-title>Методика определения расчетного срока службы безбалластного пути</article-title><trans-title-group xml:lang="en"><trans-title>Method for determining design life of ballastless way</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>Коган</surname><given-names>А. Я.</given-names></name><name name-style="western" xml:lang="en"><surname>Kogan</surname><given-names>A. Ya.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Савин</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Savin</surname><given-names>A. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Акционерное общество «Научно-исследовательский институт железнодорожного транспорта» (АО «ВНИИЖТ»)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Joint Stock Company “Railway Research Institute” (JSC “VNIIZhT”)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>28</day><month>02</month><year>2017</year></pub-date><volume>76</volume><issue>1</issue><fpage>3</fpage><lpage>9</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Коган А.Я., Савин А.В., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Коган А.Я., Савин А.В.</copyright-holder><copyright-holder xml:lang="en">Kogan A.Y., Savin A.V.</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.journal-vniizht.ru/jour/article/view/125">https://www.journal-vniizht.ru/jour/article/view/125</self-uri><abstract><p>В настоящее время актуален вопрос о сферах применения безбалластного верхнего строения пути (БВСП) и сроках его службы. Результаты испытаний на Экспериментальном кольце АО «ВНИИЖТ» дали ответы на многие вопросы, но этого недостаточно для принятия решения. Благодаря высокой грузонапряженности на Экспериментальном кольце за небольшой промежуток времени можно получить представление о сроке службы БВСП при грузовом движении со скоростью 80 км/ч и осевой нагрузке 23,5 т на ось.Для получения информации о сроке службы БВСП в реальных условиях высокоскоростного движения до 400 км/ч и осевой нагрузке до 18 т на ось требуется несколько десятков лет.Для разрешения этого противоречия предлагается применить новую методику прогнозирования расчетного срока службы БВСП в реальных условиях высокоскоростного движения по результатам испытаний на Экспериментальном кольце с использованием математического моделирования. В дальнейшем эта методика позволит учитывать изменения эксплуатационных факторов на участке, в том числе влияние повышения осевой нагрузки или скорости движения поездов на долговечность конструкции пути.</p></abstract><trans-abstract xml:lang="en"><p>The problem of the scope of ballastless track superstructure (BTS) and its service life currently is urgent. Due to the high traffic density at the Test Loop of JSC "VNIIZhT" for a short period of time it is possible to get an idea of BTS service life with freight transport at a speed of 80 km/h and axle load of 23.5 tonnes per axle. For information on BTS service life in real conditions of high-speed up to 400 km/h and axle load to 18 tonnes it would takes several decades.To resolve this contradiction it is proposed to apply a new methodology for forecasting the estimated service life of BTS at actual high-speed traffic by the results of tests on Test Loop with using mathematical modeling.In the proposed model track vibrations are considered as vibrations of construction comprising of three endlessly long beams, the bottom of which is based on a modified Winkler base and the upper and middle rely on the elastic layer mainly having a base characteristics as Winkler base. For specific design of ballastless track it would be the rail, the concrete support plate (track concrete) and hydraulically bound layer (lean concrete) correspondingly.The calculation results are presented in the form of amplitude-frequency characteristics of the bending moments in the second layer of ballastless track structure. Given the fact that the amplitude-frequency characteristic is not dependent on the axial load, the calculations are made for the particular case when the values of the speed of 80 km/h and 300 km/h with the actual characteristics of the layers of ballastless track that is operated on the Test Loop of JSC "VNIIZhT".The proposed algorithm and methodology make it possible to transfer the results of observations of the processes of degradation of tested ballastless track design, obtained at the Test Loop (st. Scherbinka), on sections of network, where installation of track of this design for mixed transport is assumed. In the future, this technique allows taking into account changes in the area of operational factors, including the effect of increasing the axial load or speed of trains on the durability of track design.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>безбалластный путь</kwd><kwd>срок службы</kwd><kwd>прогибы</kwd><kwd>напряжения</kwd><kwd>повреждаемость</kwd><kwd>моделирование</kwd><kwd>испытания</kwd><kwd>скорость</kwd><kwd>осевая нагрузка</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ballastless track</kwd><kwd>service life</kwd><kwd>deflections</kwd><kwd>stresses</kwd><kwd>damageability</kwd><kwd>modeling</kwd><kwd>tests</kwd><kwd>speed</kwd><kwd>axle load</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">Савин А. В. Выбор конструкции пути для высокоскоростного движения // Вестник ВНИИЖТ. 2014. № 1. 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