Development of Technological Settlement of Building Foundations in the Process of High-Frequency Vibration Extraction of Piles

Modern construction of a developed underground space requires a mandatory assessment of the impact on the surrounding buildings, that is, the determination of the so-called additional settlement. At the moment, there are clear methods for assessing the impact of digging pits and static loading of foundations from newly erected buildings on neighboring structures, carried out using numerical calculation methods. However, difficulties arise in determining additional settlement under technological influences, such as vibration immersion and vibration extraction of the sheet piling of a pit, as well as with various technologies for the manufacture of pile foundations. Modern building codes do not provide clear methods for such cases, although in practice process settlement can account for more than 70% of the total additional settlement of the building during the entire construction period. In this study, the authors present an analytical and numerical approach to calculating technological settlement from vibratory sheet pile extraction, which correlates well with observed real-world results.