Design of Railway Tracks in the Zone of Subgrade Adjoint to Strengthened Bridge Abutments

Lanis, Aleksey; Usov, D.A.; Razuvaev, Denis; Grebennikov, I.O.

doi:10.1007/978-3-030-96380-4_113

Cited by 2 publications

(1 citation statement)

References 10 publications

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“…It is known that the stiffness of the track top structure is affected by the construction of the earth bed, change of soils, density of their composition and change of their humidity, which depends on atmospheric precipitation [15,16]. Numerous studies and it is confirmed by the analysis of the operation of the railroad bed, rolling stock, that on different sections significantly changes the rigidity of the track and it adversely affects the strength characteristics of the railroad bed and the running part of the rolling stock [17,18,19,20,21]. It is known that the stiffness of the track top structure is influenced by the construction of the earth bed, change of soils, their density and especially their moisture content.…”

Section: Methodsmentioning

confidence: 99%

Strengthening of the railroad track for high-speed traffic on the Bukhara-Misken section

Abdujabarov,

Begmatov,

Mekhmonov

et al. 2024

E3S Web Conf.

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In the article the work of ballast prism and subgrade is considered, on the basis of analysis two-layer reinforcement from geotextile is offered, also strengthening by water-soluble polymer in conditions of sandy zone on high-speed sections of railroads is suggested. The principle of stationarity of the total potential energy of deformable Lagrangian systems is used to determine the stress-strain state of the earth bed. The dependences between the components of stress and strain tensors characterizing specific models of the medium have been established, and an elastic ground medium with no residual deformation from external load has been considered. And also offer designs of sleepers with concave surface, which will increase the service life and ensure the reliability of its operation on horizontal and vertical curves of railroads. A new fluoroplastic under-rail gasket, which does not change its characteristics during 5 years, contacting with the base of the rail, flat inner support surface, contacting with the sleeper, reduces load vibration from the rolling stock on the sections of high-speed traffic is offered.

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Section: Methodsmentioning

confidence: 99%

Strengthening of the railroad track for high-speed traffic on the Bukhara-Misken section

Abdujabarov,

Begmatov,

Mekhmonov

et al. 2024

E3S Web Conf.

View full text Add to dashboard Cite

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Functional capabilities of the calculation methodology of railway approach embankment to engineering structures taking into account temperature effect and interaction of reinforcing piles with soil

Tserekh

2023

Russian journal of transport engineering

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For the smooth operation of the railway infrastructure, it is necessary to ensure the proper functioning of the roadbed embankment and engineering structures (pipe-culverts, bridges and overpasses), which corresponds to the long-term development programme of the open joint-stock company «Russian Railways» approved by the Government of the Russian Federation dated 19 March 2019 N 466-R. In the interface zones of nonhomogenous structures, namely roadbed embankments and engineering structures, ground distortion (soil settlement) occur, which leads to a change in the dynamic impact on engineering structures (pipe-culverts, bridges and overpasses) and, as a consequence, to their accelerated damage. The timeliness of the topic is determined by the target programmes for railway transport infrastructure optimisation, ensuring uninterrupted operation, reliability of engineering structures and roadbed. When designing engineering structures, a number of solutions are used to ensure reliable functioning of the roadbed — engineering structure system (pipe-culvert, bridge substructure, tunnel, laying of communications). The problem is that their application is ineffective without scientific and regulatory support and is limited by the lack of effective solutions to ensure the rigidity of the roadbed structure on the approaches to the engineering structure. In this connection, new constructive and technical solutions development for the interface of the roadbed — engineering structure system is an urgent task. The article considers railway transportations as a production process, the smooth functioning of which is ensured by smooth conjugation of approach embankments with engineering structures (bridges, pipe-culverts, underground communications). In the interface zone there are soil settlements, damage to the roadbed integrity, deformations leading to the appearance of additional dynamic forces and the emergence of irregularities and even destruction of the road pavement (on motorways), as well as damage to the engineering structures themselves.

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Design of Railway Tracks in the Zone of Subgrade Adjoint to Strengthened Bridge Abutments

Cited by 2 publications

References 10 publications

Strengthening of the railroad track for high-speed traffic on the Bukhara-Misken section

Strengthening of the railroad track for high-speed traffic on the Bukhara-Misken section

Functional capabilities of the calculation methodology of railway approach embankment to engineering structures taking into account temperature effect and interaction of reinforcing piles with soil

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