Analysis of the Influence of Supporting Structure Stiffness on Deformation of Deep Foundation Pit

Explore the influence of support structure stiffness on foundation pit deformation using the inner support with an underground diaphragm wall configuration. Finite element analysis (FEM) assesses deformation patterns due to varying support stiffness. Results reveal significant deformation variations within the support structure and its effect on surrounding strata due to differing stiffness. Top displacement inadequately represents actual stress and deformation state. Prioritize deep horizontal displacement monitoring with surface horizontal displacement control. Support stiffness changes primarily impact deformation magnitude within the support structure, without affecting deformation patterns. It provides insights into support structure stiffness’s role in governing foundation pit deformation, with implications for project design and monitoring, enhancing our understanding of support systems’ interactions with the geological environment.