METHOD AND PROGRAM FOR PREDICTING DEFORMATION OF EXCAVATED BOTTOM PART GROUND

PROBLEM TO BE SOLVED: To provide a deformation predicting method for an excavated bottom part ground for easily and surely predicting deformation of the excavated bot tom part ground in every area or in every construction step with high precision. SOLUTION: In this method for predicting deformation of the bottom part ground due to earth retaining excavation work, an FEM analyzing method based on a multi-dimensional consolidation theory is applied to a water pressure in a confined aquifer causing deformation of the bottom part ground in the bottom part ground and a drag force to the water pressure including any of an overburden pressure in the confined aquifer, contact resistance between an earth retaining wall or a pile and the ground, and adhesion of a viscous soil layer in the earth retaining wall lower end or the deeper part below the pile lower end. In this way, a water pressure value and a drag force value promoting spatial dispersion and time dispersion in the bottom part ground are analyzed, and a ratio of the drag force to the water pressure is calculated in every construction process and in every construction area.