ABSTRACT
In this paper, a method to determine settlements in foundations of buildings, caused by construction of a trench diaphragm wall, is presented. Based on the data of geotechnical monitoring at two construction sites, it is shown that during trench diaphragm wall construction, technological settlements in the neighboring buildings can reach up to 70% of the total settlement caused by new construction. The fundamental possibility of numerical solution of the problem using the finite element method is demonstrated. An empirical equation for preliminary assessment of technological settlements in buildings at different diaphragm wall parameters is proposed. A comparison of the results obtained according to the proposed method with the data of monitoring at two facilities erected in the center of Saint Petersburg under conditions of dense urban development is presented.
