Forecasting the impact of buildings with multi-storey underground parts on the displacement of subsoil using modern numerical tools

Abstract

The paper will analyse and review the experience to date in determining the impact range of implementation of deeply founded structures on the displacement of the subsoil in the vicinity. With the background of these experiences, primarily empirical, the present possibilities of using numerical modelling to forecast the displacements of the terrain surface in various stages of works, that is, execution of deep excavation support systems, excavation-deepening phases with successive adding of struts, construction of underground levels and erection of the above-ground part of the building, will be presented. Based on the results of own research, conclusions on the use of 3D numerical models in spatial shaping and designing the structure of underground parts of new buildings erected in dense urban development will be presented. The characterised 3D numerical models were verified, taking into account the actual results of geodetic measurements of the completed buildings. Determining the range and forecasting the displacements of the subsoil are necessary for the design and implementation of investments due to the need to ensure the safety of erection and use of a new building and the buildings located within the area of influence.

Numerical study on deformation around underground mining structures (Algeria)

“…The research work that we present is focused on the study of the effect of geotechnical parameters on modeling during the digging of a mine tunnel located in the capital of Algeria, Ain NaadjaBaraki line, and notes the displacements that manifest above the arch of the structure. For Hanna Mi chalak and Paweł Przybysz (2021), displacement of the subsoil depends [8] on a variety of factors, including, primarily, change in the state of stress resulting from the relief and load on the subsoil, the subsoil type, its strength and deformation param eters. The calculation code used for our modeling is GEO5.…”