Development of effective stress soil-structure interaction analysis program for deep excavation

This paper describes the development of an effective stress soil-structure interaction analysis program for deep excavation. The program adopts fully coupled model to consider the generation of excess pore pressure during excavation as well as the consolidation due to dissipation of excess pore pressure and the change of water level during construction. Functions for staged excavation and timing of support installation were also included in order to simulate the construction procedures more closely. From the comparison of field measurements and numerical results obtained in a case study, good agreement in results can be obtained.