V. N. Kavkazsky. Scientific and Experimental Foundation for the Design and Construction of an Intermodal Complex Integrated into Pulkovo International Airport [more] [back]
The paper examines the prospects for developing railway infrastructure to improve the accessibility of transport to and from Pulkovo International Airport. The creation of an electrified double-track Ligovo — Pulkovo Airport — Highway line is being discussed as a project. The integration of the airport into St. Petersburg’s suburban and urban transportation system is planned. Special attention is paid to engineering solutions, such as tunnel structures, an underground terminal, and intermodal nodes within an operating airport. Purpose: To assess the stability of the temporary support and to forecast the setting of the airport apron surface during the construction of tunnels under the existing infrastructure, taking into account the loads from wide-body aircraft such as Airbus A380-800). Methods: A set of complementary methods was used to comprehensively assess the behavior of the “apron — soil mass — support” system under various loads, including field tests, numerical modelling, physical modelling, and analytical methods. Practical significance: The foundations for the design and construction of tunnels on the airport territory have been developed. Specific engineering solutions have been found for fixing workings under the aprons with their setting of not more than 40 mm. The ADECO- RS technology for difficult hydrogeological conditions has been proven effective, and the temporary support optimal parameters have been determined (96 composite pipes + 150 mm spray concrete). Keywords: Railway infrastructure, intermodal transport, Pulkovo airport, transport accessibility, tunnel solutions, tunnelling, airport infrastructure, geomechanical modelling, setting, ADECO-RS
A. A. Sharafutdinova, M. Ya. Bryn, E. G. Tretyakova, Zh. V. Ivanova. Experience in Building Information Model (BIM) for Industrial Buildings [more] [back]
Purpose: To demonstrate the necessity of implementing a Building Information Model (BIM) throughout the life cycle of industrial buildings. Methods: At present, Building Information Modelling (BIM) technologies have become a mandatory component at all stages of a building’s life cycle for various purposes, from design and construction to demolition. In this regard, this paper showcases the diverse range of practical BIM applications. Furthermore, it reveals the peculiarities of the approach to issues related to the design and reconstruction of industrial buildings, as well as alternatives for their redevelopment. Additionally, it analyses the documents that regulate BIM requirements. Finally, it presents a variant for realising a project using BIM development for an industrial object, and considers creating a digital model. Results: A methodology for developing an operational Building Information Modelling (BIM) process based on terrestrial laser scanning has been established. This includes architectural and construction solutions, technical documentation and others. Practical significance: The necessity and expediency of implementing BIM in the design, construction and reconstruction of industrial facilities is demonstrated using a specific example. Keywords: Building information model, industrial facility, redevelopment, terrestrial laser scanning, Revit software
I. V. Chaplin, A. V. Patornyak, S. V. Efimov. Application of a Digital Twin Model in an Operational System for Monitoring Railway Bridges [more] [back]
This paper addresses the current issues of the design, operation and monitoring of bridge structures in the context of digitalisation within the transport industry. Purpose: To develop digital twins to improve the reliability and safety of operational bridge structures. Method: The case study of an operational railway bridge highlights the limitations of traditional infrastructure management approaches. The authors propose a solution based on digital twins: a comprehensive system comprising interconnected virtual models and physical structures, as well as automated and periodic monitoring systems and supervisory measures. This solution allows the technical condition of facilities to be monitored in real time. Results: This paper describes a digital information model of the bridge that has been adapted for monitoring individual indicators such as deformation and frequency. A notable feature of the model is its ability to dynamically detail elements, thereby reducing the computational load. Additionally, it proposes an automated assessment of not only the monitoring system sensor readings with calculated boundary parameters, but also of the existing regulatory requirements. This approach enables rapid identification of deviations that significantly reduce the safety of rolling stock movement. Practical significance: This study confirms that digital twins enhance the reliability of bridges by predicting defects and enabling a rapid response. The authors emphasize the importance of developing a domestic regulatory framework and implementing machine learning to analyse long-term trends in the technical condition of structures. The study’s findings suggest that digital twins have the potential to ensure the sustainability of transport infrastructure in the face of increasing loads. Keywords: Information modelling, BIM (Building Information Modelling), IMT (Information Modelling Technology), bridge structures, transport infrastructure, reliability, digital twin, monitoring