Abstract
The article presents an analysis of the work of load-bearing structures of deep pits, the influence of changes in the parameters of the elements and the scheme of the pit on the deformation of the soil. The results of numerical simulation of the construction of a semi-buried structure under the protection of a “Slurry wall” in the three-dimensional problem statement in the Plaxis 3D software package are presented. In the work, the regularities of changes in the stress-strain state were revealed depending on the parameters of the wall, transverse and angular struts. The paper presents graphs of longitudinal forces and maximum bending moments in the struts of the pit, mulds of displacement and subsidence of the earth’s surface, graphs of vertical movements of the bottom of the pit. As a result of the study, it was found that an increase in the thickness of the “slurry wall” of more than 800 mm with an increase in the depth of more than 1 m does not have a positive effect in the framework of the considered construction conditions. In the course of the work, the most rigid scheme of the pit design was determined, which allows to obtain less deformations of the surface of the enclosing soil. This scheme has the most rational operation of structural elements.
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The reported study was funded by RFBR, project number 20-35-90111\20.
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Komolov, V., Belikov, A., Demenkov, P. (2022). Research on Load-Bearing Constructions Behavior During Pit Excavation Under «Slurry Wall» Protection. In: Mottaeva, A. (eds) Technological Advancements in Construction. Lecture Notes in Civil Engineering, vol 180. Springer, Cham. https://doi.org/10.1007/978-3-030-83917-8_29
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DOI: https://doi.org/10.1007/978-3-030-83917-8_29
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