Measures to minimize foundation settlement in a new construction project

Introduction. Excessive building density worsens the lack of foundation soils that have sufficiently high physical and mechanical properties and therefore do not require additional soil improvement measures or deep foundations. Accordingly, design practice increasingly requires enhancing the bearing capacity of subsoil and foundations to reduce deformations and prevent failures, which is particularly important for the present-day construction practice in large urban areas.

Materials and methods. There are numerous soil improvement methods, including mechanical, chemical, and physicochemical techniques. Each approach has advantages and limitations, as well as fields of application determined by project-specific conditions and requirements. In recent years, new technologies, such as grouting methods and geosynthetic materials, have been actively developed, opening up new opportunities for improving structural performance and stability. This study considers foundation-soil improvement using Jet Grouting (jet grouting of soils) and construction of a pile foundation using discharge-pulse technology (DPT) as applied to a specific facility under existing development and geoengineering conditions.

Results. Several modern ground improvement technologies were analyzed for the specific conditions of a particular construction site, and their effectiveness was evaluated. Numerical modeling was performed for a building on a Jet Grouting-improved foundation soil and for a pile foundation constructed using DPT.

Conclusions. The results of numerical modeling are presented. The choice of methods depends on geoengineering conditions, the required bearing capacity of the foundation soils, and other factors.

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