Articles published in the issue 07, 2021

Hydroacoustic research of the underwater part of bridge piers

Keywords: sonar systems, autonomous unmanned underwater vehicles, surveys, railway bridge, bridge repair, robotic equipment.

Abrosimov Vyacheslav — D.Sci., Senior Researcher, Scientific director Network centric. Samara, Russia. E-mail: avk787@yandex.ru

Mochalkin Alexander — General Director of Network centric. Samara, Russia. E-mail: a-mochalkin@mail.ru

Trusilov Vladimir — General Director of LTD. «Screen». Moscow Region, Il’inskiy, Russia. E-mail: tvt50@mail.ru

Panteley Ekaterina — Postgraduate student at the  Department Electronic systems and information security, Samara State Technical University. Samara, Russia. E-mail: panteley@kg.ru

Abstract. Bridges over rivers and bodies of water are an integral part of the railway infrastructure. Maintenance of bridges due to the presence of an aggressive aquatic environment for humans and technology and the lack of a sufficient number of diving groups is laborious and is objectively carried out relatively rarely. The article discusses the Russian development in the field of hydroacoustic technologies for examining the underwater part of bridge piers using robotic means. The use of such technologies reduces the labour intensive and improves the operational reliability of artificial structures.

Echnology development of structural health monitoring systems for railway bridges

Keywords: monitoring system, structural health, railway bridge, bridge superstructure, stress-strain state, finite-element model.

Yashnov Andrey — Ph.D. of Engineering Sciences, associate professor, Siberian Transport University. Novosibirsk, Russia. E-mail: yan@stu.ru

Kuzmenkov Pavel — research assistant, Siberian Transport University. Novosibirsk, Russia.

E-mail: pavel.kuzmenkov.89@mail.ru

Ivanov Evgeni — postgraduate student, Siberian Transport University. Novosibirsk, Russia. E-mail: evgenivanov96@mail.ru

Abstract. The article generalizes practical experience of structural health monitoring systems for railway bridges elaboration. The technological scheme of monitoring and requirements to main elements are given. The paper also proposes criteria for the selection of priority structures for monitoring system installation.

Strengthening the subshedral base in the conditions of Siberia

Keywords: joint-free path, reinforcement of the substructure base, input-thermal mode, seasonal deformations, weak clay soils, personnel support.

Schepotin Georgy — D.Sci., Professor of the Department «Way and Way Economy» of the Siberian Transport University. Novosibirsk, Russia. Е-mail: shepotin@rambler.ru

Abstract. Strengthening the substructure of a seamless track on long-term operated railway lines in the difficult engineering, geological and climatic conditions of Siberia is an urgent task. Such a task requires finding solutions taking into account the actual input-thermal mode of the operated structure of the substructure on the repaired sections of the track. To determine the main parameters of this mode, labor-intensive research is required. This is especially true for the conditions of BAM and permafrost.

Obviously, there is a need to improve the skills of engineering and technical workers of track facilities.

Automation of keeping the Journal of the PU-74 form

Keywords: automated systems, PU-74, journal, planning, program, document flow.

Rybakov Sergey — 5th year student of the specialty «Bridges and tunnels» of the Russian University of Transport (MIIT). E-mail: rybakov.sv@bk.ru

Kurtikov Roman — senior lecturer of the department of «Railway and track facilities» of the Russian University of Transport (MIIT). E-mail: krm_6426@mail.ru

Abstract. The article describes the experience of creating and using software designed to automate the processes of maintaining documentation in the distances of engineering structures of Russian Railways. The functionality of the program, its advantages and disadvantages, as well as the prospects for further development of this direction are considered in detail.