Russian Federation
Russian Federation
Russian Federation
Russian Federation
Russian Federation
Russian Federation
Purpose: To analyse the specific features, problems and world practices of the use of girder transporters; to develop the recommendations for their use in the construction of HSR infrastructure facilities. To investigate and calculate the roadbed stability in order to make a decision on the possibility of using girder transporters. Methods: Carrying out geotechnical calculations of the strength and stability of the roadbed taking into account possible loads from the passage of the girder transporter. Analysis of the results of geotechnical studies and verification calculations. Results: The recommendations for improving the efficiency of girder transporters, speeding up the process and reducing labour costs during the installation of heavy girder structures. The conclusions on the changes in the regulatory requirements for the organization of the transport operation, as well as on the technology of preparing the roadbed and its foundation. The need to investigate the stability of the soils, to check the quality of the access roads and to monitor and carry out verification calculations before starting work in order to avoid the risk of deformation of the roadbed has been pointed out. Practical significance: The geotechnical investigation and verification calculation methods presented in this paper allow the identification of critical zones of possible loss of roadbed stability and the development of measures to strengthen them. The application of the research results to design practices will ensure the regulatory quality of heavy HSR structures transportion, as well as the safe operation of girder transporters; it will reduce risks associated with roadbed deformation, and reduce construction time.
High-speed railway, girder transporter, stress-strain state, deformation, geotechnical investigation
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