RESEARCH ON FACTORS INFLUENCING THE TECHNOLOGY OF UNDERGROUND STRUCTURE CONSTRUCTION USING THE GRAVITATIONAL EXTRUSION METHOD
DOI:
https://doi.org/10.32782/tnv-tech.2025.1.56Keywords:
gravitational extrusion technology, reinforced concrete structures, monolithic construction, hydraulic structures, underground structures, diaphragm wall method, slip form, influencing factors, clay slurry, concretingAbstract
The article presents the results of a study on the technology of gravitational extrusion of reinforced concrete structures, designed for the construction of underground reinforced concrete structures in challenging hydrogeological conditions. The proposed technology synthesizes the advantages of the diaphragm wall and slip form methods, which will improve the quality of monolithic structures compared to the diaphragm wall method and enhance their waterproofing properties. This highlights the broad prospects for applying this technology in the construction of locks, pumping stations, shoreline protection walls, and foundations in flood-prone areas.The study analyzed groups of factors influencing the technology of gravitational extrusion of reinforced concrete structures, namely: factors of structural design solutions, environmental factors, factors of formwork system design, factors of the physical and mechanical properties of concrete mix, as well as technological, organizational, economic, and emergency-related factors.A preliminary assessment of 54 influencing factors was conducted using a ranking method. The ranking of factors was carried out based on decimal dimensionless scales of “Importance” and “Desirability.” The “Importance” scale assessed factors based on their criticality, i.e., the extent to which their values affect the feasibility of using the gravitational extrusion construction method.The “Desirability” scale assessed factors based on their necessity, i.e., the extent to which their values influence the efficiency and feasibility of the gravitational extrusion construction method.As a result, 16 key factors affecting the construction of underground reinforced concrete structures using gravitational extrusion were identified. Subsequently, based on an analysis of scientific and technical sources on the application experience of the diaphragm wall method and the slip form construction method, the variation ranges of the 16 key influencing factors on the gravitational extrusion technology were determined.The obtained results can be used for further research and improvement of the technology for constructing underground reinforced concrete structures using gravitational extrusion.
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