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Abstract：
Some key technical problems such as the principle of liquefied nitrogen sharp freezing, freezing technology process, design of freezing parameters, freezing construction and controlling of freeing circumstance effect have been discussed by considering the application of liquefied nitrogen freezing technology for drainpipes repair in metro interval tunnels of urban underground engineering.
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Journal of Beijing University of Technology
ISSN： 0254-0037
Year： 2010
Issue： 9
Volume： 36
Page： 1193-1198
Cited Count：
WoS CC Cited Count： 0
SCOPUS Cited Count：
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 5
