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Hui Xiang, Guoce Zhang, Po Cheng, Jun Hu, Zhixin Wang and Dongling Zeng
There are stringent requirements on the vertical movement of a ground surface when using artificial ground freezing method to reinforce a shield tunnel in a city. This paper focused on the tunnel of Nanjing Metro Line Two between Yixianqiao and Daxinggon...
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Shilong Peng, Yuhao Xu, Guangyong Cao and Lei Pei
The study of the changes in stress and deformation of frozen walls during excavation has always been a hot topic in underground freezing engineering, and the size of the plastic zone is an important basis for evaluating the stability of frozen walls. In ...
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Jie Zhou, Zhongqiu Guo, Chuanhe Wang, Zeyao Li, Huade Zhou and Wansheng Pei
Artificial ground freezing (AGF) is a widely used method in coastal tunnel construction and reinforcement. With more and more underground construction in coastal areas, clay?sand combined formation, which is common in coastal areas, brings more challenge...
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Zhao Liu, Youhong Sun, Bingge Wang and Qiang Li
The application of conventional artificial ground freezing (AGF) has two disadvantages: low freezing rate and small frozen range. In this study, a new method with natural cold gas injection was proposed, whereby the shallow soils and water can be frozen ...
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