Study on Temperature Field Evolution and Frozen Wall Closure Judgment Criteria of Inclined Shaft under Inclined Holes Freezing Condition

Table 2

Closure time of frozen wall.

Monitoring section	Soil layer	Location of measuring points	Closure time of frozen wall
			Scale model (min)	Real model (d)
D1	Sandy; Soil	Arch crown	56	27.3
		Arch baseline	55.6	27.1
		Wall corner	52.7	25.7
		Base plate	44.9	21.9