Analysis of convergence of analytical and numerical solutions in the calculation of cross-beam foundation on a sloping basement in case of sudden formation of karst-rockfall processes
https://doi.org/10.22227/2305-5502.2025.1.1
Abstract
Introduction. The convergence of the results obtained during the comparison of analytical and numerical methods using FEM in the Midas GTS NX PC for the calculation of cross-beam foundation and sloping foundation in case of sudden formation of karst-rockfall processes was analyzed. The analytical calculation method was developed on the basis of empirical data obtained during laboratory model tests in a special facility that allows modelling karst-rockfall processes, the numerical model was an identical prototype repeating qualitative and quantitative characteristics used in physical modelling.
Materials and methods. A comparative assessment of the convergence of the results obtained by two independent methods in the calculation of a cross-beam foundation on a sloping base in the conditions of karst-rockfall processes is given.
Results. The obtained discrepancies of the main quantitative parameters such as normal contact stresses under the bottom of the longitudinal strip of the cross-beam foundation, deformations of the foundation after the karst cavity emergence to the surface and formation of sinkholes were evaluated.
Conclusions. The reliability of the proposed numerical model was confirmed as a result of the research. It allows to reduce the labour intensity of laboratory tests and to expand the boundaries of research in further study of cross-beam foundation and sloping foundation performance in the conditions of karst territories.
About the Authors
S. I. Evtushenko
Moscow State University of Civil Engineering (National Research University) (MGSU)
Russian Federation
Russian Federation
Sergey I. Evtushenko — Doctor of Technical Sciences, Professor of the Department of Information Systems, Technologies and Automation in Construction
26 Yaroslavskoe shosse, Moscow, 129337
E. V. Zelenin
Academy of Construction and Architecture of the Crimean Federal University named after V.I. Vernadsky
Russian Federation
Russian Federation
Evgeny V. Zelenin — postgraduate student of the Department of Building Structures
3а Pavlenko st., Republic of Crimea, Simferopol, 295000
A. B. Barykin
Academy of Construction and Architecture of the Crimean Federal University named after V.I. Vernadsky
Russian Federation
Russian Federation
Alexander B. Barykin — Candidate of Technical Sciences, Lecturer at the Department of Geotechnics and Structural Elements
3а Pavlenko st., Republic of Crimea, Simferopol, 295000
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Review
For citations:
Evtushenko S.I., Zelenin E.V., Barykin A.B. Analysis of convergence of analytical and numerical solutions in the calculation of cross-beam foundation on a sloping basement in case of sudden formation of karst-rockfall processes. Construction: Science and Education. 2025;15(1):8-20. (In Russ.) https://doi.org/10.22227/2305-5502.2025.1.1
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