침수지반의 단계적 굴착해석

FINITE ELEMENT ANALYSIS OF FLUID-SATURATED GROUND SYSTEM UNDER INCREMENTAL EXCAVATION

In the construction of underground structures, it is critical to accurately predict the ground deformations during excavation. In this paper, a finite element procedure for the computation of solid displacement and fluid pore pressure during incremental excavation is presented based on Biot's theory. The numerical formulation is done using the virtual work principle. The proposed procedure is applied to some example problems with different excavation rates and permeabilities.