Centrifuge Model Investigation of Interaction between Successively Constructed Foundation Pits

A series of centrifuge model tests were conducted to study the interaction between successively constructed adjacent foundation pits. The stress, deformation, and earth pressure on retaining structures settlement soil two pits during successive construction investigated by a comprehensive instrumentation program. To reveal effect sequence, both stress deformation compared. results showed that structure in pit first larger than those later. Due inward displacement around excavated first, strut later underwent high tension pit. lateral increased with increase excavation depth. However, second reduced wall excavations, thus leading recovery excavation. top deformed into whole construction. superposition effect. During pits, them kept increasing. active middle was lower had no significant passive