Study on the Formation Law of the Freezing Temperature Field of Freezing Shaft Sinking under the Action of Large-Flow-Rate Groundwater

Table 3

Freezing parameters of central wind shaft in Panyi Mine.

Parameters		Value	Unit
Inner diameter of the wellbore		6	m
Diameter of the excavation boundary		8	m
Freezing pipe	Diameter of the arrangement area	14	m
	Quantity	38	1
	Spacing	1.15	m
	Temperature	−32	°C
	Size of freezing pipe	159 × 6	mm