Research on calculation method of soil 3D displacement due to shield tunnel construction

Based on the research of the parameter. getting, the calculation formulas of primary parameters applicable to various strata are put forward. The elliptical and non-uniform soil displacement pattern, which is more appropriate for the actual cases, is adopted. With the calculation formulas of. and the elliptical displacement pattern, the revised stochastic medium theory, applicable to the calculation of surface and subsurface soil displacement is put forward. Finally, comparing the calculated results with the measured field data, the method of Shi and the method of Loganathan, it is proved that the calculated results can be fitted well with the measured field data.