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

Table 1

Mechanical parameters of frozen wall and surrounding earth mass for the HF model.

Freezing modes	Average temperature (°C)	Formation conditions	Mechanical parameters	Frozen wall	Surrounding earth mass
Single-circle pipes	−10.4	(1) rock freezing	(MPa)	18351	9000
				0.178	0.22
		(2) soil freezing	(MPa)	955	160
				0.276	0.34
Double-circle pipes	−16	(1) rock freezing	(MPa)	19830	9000
				0.171	0.22
		(2) soil freezing	(MPa)	1081	160
				0.266	0.34
Triple-circle pipes	−19.8	(1) rock freezing	(MPa)	20834	9000
				0.166	0.22
		(2) soil freezing	(MPa)	1166	160
				0.259	0.34