{"id":2851,"date":"2026-04-25T14:04:54","date_gmt":"2026-04-25T11:04:54","guid":{"rendered":"https:\/\/t-s.today\/en\/?p=2851"},"modified":"2026-04-25T14:04:54","modified_gmt":"2026-04-25T11:04:54","slug":"07sats126","status":"publish","type":"post","link":"https:\/\/t-s.today\/en\/07sats126.html","title":{"rendered":"Structural and technological solutions for variable stiffness sections in the design of high-speed railway lines"},"content":{"rendered":"

Ulanov Ivan Sergeevich<\/strong>
\nNPS High-Speed Technologies LLC, Moscow, Russia
\nE-mail: i.ulanov@npsst.ru
\nRSCI: https:\/\/elibrary.ru\/author_profile.asp?id=949102<\/a><\/p>\n

Gorlov Aleksandr Vyacheslavovich<\/strong>
\nNPS High-Speed Technologies LLC, Moscow, Russia
\nE-mail: a.gorlov@npsst.ru
\nRSCI: https:\/\/elibrary.ru\/author_profile.asp?id=875880<\/a><\/p>\n

Lutsky Svyatoslav Yakovlevich<\/strong>
\nRussian University of Transport (MIIT), Moscow, Russia
\nInstitute of Track, Construction and Structures
\nE-mail: lsy40@mail.ru
\nRSCI: https:\/\/elibrary.ru\/author_profile.asp?id=846369<\/a><\/p>\n

Cherkasov Aleksandr Mikhailovich<\/strong>
\nRussian University of Transport (MIIT), Moscow, Russia
\nE-mail: a.m.cherkasov@edu.rut-miit.ru
\nORCID: https:\/\/orcid.org\/0000-0002-8233-9803<\/a>
\nRSCI: https:\/\/elibrary.ru\/author_profile.asp?id=472233<\/a>
\nSCOPUS: https:\/\/www.scopus.com\/authid\/detail.url?authorId=57200192573<\/a><\/p>\n

Epifantsev Denis Vadimovich<\/strong>
\nRussian University of Transport (MIIT), Moscow, Russia
\nInstitute of Track, Construction and Structures
\nE-mail: epifantsev.d.2000@gmail.com
\nRSCI: https:\/\/elibrary.ru\/author_profile.asp?id=1239138<\/a><\/p>\n

Abstract.<\/strong> The article addresses the problem of ensuring the reliability and safety of train traffic on sections with different types of track superstructure, primarily at the interface between ballasted and ballastless track. A comprehensive approach to selecting design and technological solutions for designing the parameters of a variable stiffness track section across all working zones is proposed \u2014 rails, fastenings, sub-rail support (sleepers), roadbed, and subgrade.<\/p>\n

The main elements of transition zone structures are considered: transition reinforced concrete slabs, elongated sleepers, additional guard rails, under-sleeper and under-rail pads, sub-ballast mats, adjustable rail fastenings, geosynthetics, stabilizing binders, drainage, and frost-protection layers. For the active zone of the roadbed and embankment foundation, the necessity of diagnosing and forecasting the impact of vibration-dynamic loads on the heterogeneous soil structure is demonstrated. Design and technological solutions can influence several target characteristics simultaneously; the degree of their influence is established for practical selection under given operational conditions. International and domestic experience regarding track deformations on such sections and the engineering measures ensuring their compensation is summarized. The organization of stationary monitoring posts and a program for monitoring the condition of the track structure and its foundation are proposed, aimed at diagnosing and regulating the reliability of all working zones throughout the lifecycle stages.<\/p>\n

The practical value of the work lies in refining the criteria and forming a systematic approach to designing variable stiffness track sections, which allows for increasing operational reliability and reducing maintenance costs during the construction and operation of high-speed railway lines.<\/p>\n

Keywords:<\/strong> high-speed railway; railway track; variable stiffness; loads; deformations; design and technological solutions; monitoring; reliability<\/p>\n","protected":false},"excerpt":{"rendered":"

Ulanov Ivan Sergeevich NPS High-Speed Technologies LLC, Moscow, Russia E-mail: i.ulanov@npsst.ru RSCI: https:\/\/elibrary.ru\/author_profile.asp?id=949102 Gorlov Aleksandr Vyacheslavovich NPS High-Speed Technologies LLC, Moscow, Russia E-mail: a.gorlov@npsst.ru RSCI: https:\/\/elibrary.ru\/author_profile.asp?id=875880 Lutsky Svyatoslav Yakovlevich Russian University of Transport (MIIT), Moscow, Russia Institute of Track, Construction …<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[60,5],"tags":[],"class_list":["post-2851","post","type-post","status-publish","format-standard","hentry","category-issue-1-2026","category-article"],"_links":{"self":[{"href":"https:\/\/t-s.today\/en\/wp-json\/wp\/v2\/posts\/2851","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/t-s.today\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/t-s.today\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/t-s.today\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/t-s.today\/en\/wp-json\/wp\/v2\/comments?post=2851"}],"version-history":[{"count":1,"href":"https:\/\/t-s.today\/en\/wp-json\/wp\/v2\/posts\/2851\/revisions"}],"predecessor-version":[{"id":2853,"href":"https:\/\/t-s.today\/en\/wp-json\/wp\/v2\/posts\/2851\/revisions\/2853"}],"wp:attachment":[{"href":"https:\/\/t-s.today\/en\/wp-json\/wp\/v2\/media?parent=2851"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/t-s.today\/en\/wp-json\/wp\/v2\/categories?post=2851"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/t-s.today\/en\/wp-json\/wp\/v2\/tags?post=2851"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}