Foundations strengthening with injection piles during buildings reconstruction
https://doi.org/10.37538/2224-9494-2026-1(48)-168-181
EDN: CSKTHZ
Abstract
Introduction. When reconstructing buildings shallow foundations, quite often there is a need to strengthen them. One of the ways to increase the bearing capacity of foundations is to change their operating pattern by transferring part of the load from the building being reconstructed to injection piles. The foundation formed in this way in a building is usually called combined and can be separate (free-standing), strip or slab in the form of a continuous monolithic reinforced concrete slab. Existing methods for calculating foundations (combined foundations) of reconstructed buildings strengthened using piles do not allow us to fully take into account the peculiarities of their interaction with the foundation soil.
Aim. Present information on injection piles, the nature of their work in clay soils, methods for calculating the bearing capacity and settlement of piles as part of reinforced foundations of reconstructed buildings.
Materials and methods. The work examines reinforced concrete injection piles made of fine-grained mobile concrete mixture, which are installed in the conditions of reconstruction of buildings.
The results of the studies indicate an increase in the load-bearing capacity of existing foundations due to their conversion into combined foundations with injection piles.
Conclusions. The main conclusion from the research results is the effectiveness of using reinforcement of foundations with injection piles in clay soils for the conditions of reconstruction of buildings.
Keywords
foundations of reconstructed buildings,
strengthening,
injection pile,
calculation methods,
bearing capacity,
pile settlement,
combined foundation,
clay soils
Supporting agencies: No funding support was obtained for the research.
About the Authors
A. I. Polishchuk
Kuban State Agrarian University named after I.T. Trubilin
Russian Federation
Russian Federation
Anatoly I. Polishchuk, Dr. Sci. (Engineering), Professor, Professor of the Department of Foundations and Foundations
Kalinina str., 13, Krasnodar, 350044
A. A. Petukhov
Kuban State Agrarian University named after I.T. Trubilin; Stroytekhinnovatsii TDSC LLC
Russian Federation
Russian Federation
Arkady A. Petukhov, Cand. Sci. (Engineering), Associate Professor of the Department of Beds and Foundations
Kalinina str., 13, Krasnodar, 350044; Razvitie ave., 27, Tomsk, 634055
I. V. Semenov
Kuban State Agrarian University named after I.T. Trubilin
Russian Federation
Russian Federation
Ivan V. Semenov, Senior Lecturer, Graduate Student of the Department of Beds and Foundations
Kalinina str., 13, Krasnodar, 350044
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Review
For citations:
Polishchuk A.I., Petukhov A.A., Semenov I.V. Foundations strengthening with injection piles during buildings reconstruction. Bulletin of Science and Research Center of Construction. 2026;48(1):168-181. (In Russ.) https://doi.org/10.37538/2224-9494-2026-1(48)-168-181. EDN: CSKTHZ
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