结合上海地铁建设工程实际，从工程设计、施工、加固效果等方面阐述了全封闭水平冻结加固技术的应用。
In the light of the practice of Shanghai subway project, this article describes the completely closed horizontal freezing reinforcing technique in the aspects of design, construction and effect.
本文以上海延安东路隧道南线盾构进洞段工程施工为背景，论述了泥水平衡盾构穿越冻结加固区的施工技术。
Based upon the shield construction practice in the portal section of South Tube of Yanan Donglu Tunnel, this paper demonstrates the technology for slurry balance shield passing through freezing zone.
本文主要介绍了旁通道排水管修复液氮冻结加固施工技术，为今后类似排水管修复工程提供经验。
The article introduces the technology of liquefied nitrogen freezing for the construction of the drain repairing of communication passage.
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