Retaining Structure Force-Deformation Analysis Model for an Ultradeep Foundation Pit

Table 3

Parameters according to different methods.

Methods	Code method [1]		Method proposed in this study		Continuum medium finite; element method
Parameters	Horizontal foundation stiffness coefficient	Earth pressure	Horizontal foundation coefficient	Earth pressure	Soil modulus	Model
	Proportional coefficient of horizontal foundation stiffness coefficient 𝑚 = 4,000	Active earth pressure coefficient 𝐾𝑎=0.33	Considering the influence of space size, stress path, load level, and seepage	Static earth pressure coefficient considering the influence of seepage 𝐾𝑜=0.5	Initial tangent modulus 𝐸𝑖 considering the influence of stress path	Mohr-Coulomb elastic-plastic model