Horizontal holes were drilled into the wet soil and liquid nitrogen was pumped in, freezing the water until the tunnel could be dug and cemented.
在湿的土壤中水平的打一些洞，然后泵入液氮对水进行冷冻，直到隧道可以被挖掘和用水泥封住。
2
The application scheme of the artificial freezing method in Xuanwu Lake subaqueous highway tunnel construction and the constructing procedure of the freezing method are introduced.
介绍了人工冻结法在玄武湖水下交通隧道中的应用方案以及冻结法的施工工艺。
3
The present application condition and development trend of artificial freezing method in subway tunnel were described.