Elastic Analysis of Nonhomogeneous Frozen Wall under Nonaxisymmetric Ground Stress Field and in State of Unloading

Table 2

, , and at the outer edge of the frozen wall and for different freezing modes.

Freezing modes	Coefficient of the unloading ratio
	IF model	HF model	IF model	HF model	IF model	HF model
	Single-circle freezing	0.0426	0.0438	0.306	0.320	−0.167	−0.161
Double-circle freezing	0.0226	0.0227	0.153	0.150	−0.0876	−0.0828
Triple-circle freezing	0.0122	0.0119	0.0744	0.0737	−0.0424	−0.0404