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DOI: 10.15862/01TS117 (https://doi.org/10.15862/01TS117)

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Ovchinnikov I.I., Ovchinnikov I.G., Blinkov M.A., Zarudny A.I. [Estimation of the possible causes of a corrugated pipe destruction under the auto-road in the Crimea] Russian Journal of Transport Engineering, 2017, Vol. 4, No. 1. Available at: https://t-s.today/PDF/01TS117.pdf (in Russian). DOI: 10.15862/01TS117

Estimation of the possible causes of a corrugated pipe destruction under the auto-road in the Crimea

Ovchinnikov Ilya Igorevich
Yuri Gagarin state technical university of Saratov, Russia, Saratov
Moscow state automobile & road technical university
Sochi branch, Russia, Sochi
E-mail: bridgeart@mail.ru

Ovchinnikov Igor Georgievich
National research nuclear university MEPhI (Moscow Engineering Physics Institute)
Balakovo institute of engineering and technology (branch), Russia, Balakovo
Yuri Gagarin state technical university of Saratov, Russia, Saratov
Perm national research polytechnic university, Russia, Perm
E-mail: bridgesar@mail.ru

Blinkov Maxim Andreevich
Institute «Proektmostorekonstruktsiya», Russia, Saratov
E-mail: diamond@bridge-pmr.ru

Zarudny Andrey Igorevich
Institute «Proektmostorekonstruktsiya», Russia, Saratov
E-mail: diamond@bridge-pmr.ru

Abstract. With the use of the Midas Civil software, the authors simulated the behavior of a road embankment section with a corrugated arched construction laid under it. Numerical simulation of the structure behavior for three operation schemes was carried out: a normal design behavior of the structure under the impact of design loads; behavior of the structure when forming local cavities behind the corrugated curved arch (a part of the support from the ground is removed from one side of the corrugated curved arch) and behavior of the structure with come on water of the sub-soil on one side of the corrugated curved arch. For all design schemes the article presents the oilskins of distribution of normal stresses in the corrugated curved arch from the applied rated forces. Analysis of the calculation data made it possible to establish that in the event of violation of normal operation conditions (formation of local cavities in the sub-soil casing behind the corrugated curved arch or when watering soil casing on one side of the corrugated curved arch), the critical forces arise causing the onset of the first limit state (the zonal stresses of the corrugated curved arch exceed the permissible ones of material), what can lead to destruction of the corrugated curved arch construction itself. It is noted that the obligatory condition for reliable operation of the soil-filling structure is the joint work of the metal corrugated curved arch with the soil-up casing surrounding it, that leading to the formation of a single soil-filling structure perceiving the loads acting on the structure and other impacts.

Keywords: destruction of embankment; corrugated structure; soil-filling structure; mathematical simulation; design analysis; destruction cause research

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