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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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Bo Wang, Jun Hu, Xiaoqi Lin and Hui Zeng
In this study, the engineering background of No. 2 complex connecting passage of Binhu Road Station/Jinhu Square Station of Nanning Metro Line 3 is investigated, where the artificial ground freezing technique is adopted. A three-dimensional finite elemen...
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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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Shanshan Hou, Yugui Yang, Yong Chen, Dawei Lei and Chengzheng Cai
The existence of fracture flow has an undesirable effect on the creation of the frozen wall. Brine and liquid nitrogen combined freezing technology can ensure the safety of freezing engineering, reduce the construction period and save cost. Considering t...
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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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