Abstract:

Artificial ground freezing method has been applied in China for more than 60 years. As one of the most effective methods for controlling water in the underground works and tunnel works, artificial ground freezing method has its advantages and risks. In the paper, the procedure of artificial ground freezing is presented, the factors that should be considered in the design of artificial ground freezing are discussed, the mechanism of frost heaving and thaw settlement, as well as the prevention measures, are expounded, and the progress of artificial ground freezing method applied in tunel works are provided.

Key words: artificial ground freezing, frost heave and thaw settlement, tunnelling, Metro station, launching and arriving of shield machine