Abstract：
Pitching freezer has been used in some of the ground freezing projects, especially in metro cross passage construction. The phenomena of gas storage will appear at the bottom of pitching freezer in the process of brine circulation, which will affect the development of temperature field nearby and result in failure to the freezing project, producing severe risks to the safety of it. The paper carried out experimental study on gas storage at bottom of pitching freezer in ground freezing and clarified the relation between gas storage at bottom of pitching freezer and its length, inclination and velocities of brine circulation.
2011, Vol. 48 