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

Table 1

Main parameters of the test.

Parameter	In engineering	In test
Size of freezing pipe	110 mm	22 mm
Distance between frozen pipes	1,200 mm	240 mm
Groundwater flow rate	5 m/d	25 m/d
Freeze time	1 d	57.6 min