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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Bulletin of scientific research results</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Bulletin of scientific research results</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Бюллетень результатов научных исследований</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="online">2223-9987</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">51385</article-id>
   <article-id pub-id-type="doi">10.20295/2223-9987-2022-2-164-178</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Современные технологии - транспорту</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>HIGH TECHNOLOGIES FOR TRANSPORT</subject>
    </subj-group>
    <subj-group>
     <subject>Современные технологии - транспорту</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Complex Spatial Geometry of Curved Sections on High-Speed Railways</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Сложная пространственная геометрия криволинейных участков трассы высокоскоростных железнодорожных магистралей</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Шкурников</surname>
       <given-names>Сергей Васильевич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Shkurnikov</surname>
       <given-names>Sergey Vasil'evich</given-names>
      </name>
     </name-alternatives>
     <email>3123810@mail.ru</email>
     <bio xml:lang="ru">
      <p>кандидат технических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of technical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Булакаева</surname>
       <given-names>Ольга Сергеевна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Bulakaeva</surname>
       <given-names>Ol'ga Sergeevna</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>кандидат технических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of technical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Анисимов</surname>
       <given-names>Владимир Александрович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Anisimov</surname>
       <given-names>Vladimir Aleksandrovich</given-names>
      </name>
     </name-alternatives>
     <email>anisvl@mail.ru</email>
     <bio xml:lang="ru">
      <p>доктор технических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of technical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Петербургский государственный университет путей сообщения Императора Александра I</institution>
     <city>Санкт-Петербург</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Emperor Alexander I Petersburg State Transport University</institution>
     <city>Saint-Petersburg</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Петербургский государственный университет путей сообщения Императора Александра I</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Emperor Alexander I St. Petersburg State Transport University</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Петербургский государственный университет путей сообщения Императора Александра I</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Emperor Alexander I St. Petersburg State Transport University</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2022-06-23T18:10:27+03:00">
    <day>23</day>
    <month>06</month>
    <year>2022</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2022-06-23T18:10:27+03:00">
    <day>23</day>
    <month>06</month>
    <year>2022</year>
   </pub-date>
   <volume>2022</volume>
   <issue>2</issue>
   <fpage>164</fpage>
   <lpage>178</lpage>
   <history>
    <date date-type="received" iso-8601-date="2022-06-23T00:00:00+03:00">
     <day>23</day>
     <month>06</month>
     <year>2022</year>
    </date>
   </history>
   <self-uri xlink:href="https://pgups.editorum.ru/en/nauka/article/51385/view">https://pgups.editorum.ru/en/nauka/article/51385/view</self-uri>
   <abstract xml:lang="ru">
    <p>Цель: В работе изложены некоторые перспективные направления современного развития науки проектирования плана и профиля трассы высокоскоростных железнодорожных магистралей, главной задачей которых является критическое переосмысление положений существующей нормативной базы проектирования. Вопрос о недопустимости устройства участков сложной пространственной геометрии — участков совпадения вертикальной кривой в профиле и переходной кривой в плане — является одним из таких положений. Методы: В рамках проведенного исследования предложен теоретический подход к определению силовых воздействий на участке сложной пространственной геометрии. Результаты: Установлено, что на величину силовых воздействий оказывают влияние направление вертикальной кривой (выпуклая или вогнутая), а также расчетная величина непогашенного ускорения в рассматриваемой кривой. Исследования влияния участков сложной пространственной геометрии на динамику движения высокоскоростного подвижного состава показывают, что при определенном сочетании радиусов круговых и вертикальных кривых для различных скоростей движения можно минимизировать негативные динамические воздействия, вызванные наличием участка сложной пространственной геометрии. Практическая значимость: В результате работы установлено, что при скоростях 350 и более км/ч совмещение вертикальной кривой в профиле и переходной кривой в плане возможно без применения дополнительных требований к параметрам кривых. При скоростях движения менее 350 км/ч необходимо увеличивать радиус круговой кривой на 30–60 %.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Purpose: The paper poses some promising trends of modern projection science development for high-speed railway plan and profile. The main objective of the trends is to critically rethink the provisions of the existing regulatory design base of the projection. The question on inadmissibility of the arrangement of complex spatial geometry sections — the sections of coincidence of a vertical curve in a profile and a passage curve in a plan — is one of such provisions. Methods: In the frames of the conducted research, a theoretical approach to the determination of force impacts at the section of complex spatial geometry is proposed. Results: It is established that force impact value is caused by vertical curve direction (convex or concave), as well as by calculated value of outstanding acceleration in being considered curve, Studies of the influence of sections with complex spatial geometry on the dynamics of high-speed rolling stock motion show that at certain combination of circular and vertical curve radii for motion various speeds, it is possible to minimize negative dynamic effects caused by the presence of complex spatial geometry section. Practical importance: As a result of the work, it was found that at speeds of 350 km/h or more, the superimposition of a vertical curve in the profile and a passage curve in the plan is acceptable without applying additional requirements to the curve parameters. The radius of the circular curve should be increased by 30-60% at speeds of less than 350 km/h.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>план трассы</kwd>
    <kwd>высокоскоростная железнодорожная магистраль</kwd>
    <kwd>переходные кривые</kwd>
    <kwd>вертикальные кривые</kwd>
    <kwd>совмещение вертикальной и переходной кривой</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>railway plan</kwd>
    <kwd>horizontal alignment</kwd>
    <kwd>high-speed railway</kwd>
    <kwd>passage curves</kwd>
    <kwd>verticals curves</kwd>
    <kwd>vertical and passage curve superimposition</kwd>
   </kwd-group>
  </article-meta>
 </front>
 <body>
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