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Patent Searching and Data


Title:
PIPE JACKING AND FREEZING SYSTEM AND CONSTRUCTION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2018/113488
Kind Code:
A1
Abstract:
A pipe jacking and freezing system, comprising a circulating pipe channel, a freezing pipe (3), a standard pipe jack (4), a refrigerant delivery device (5), a temperature-sensing cable (6), a connection pipe channel (7), and a circulating system delivery device (8). Further provided is a construction method using the pipe jacking and freezing system. The method comprises: first excavating a start shaft, requiring N standard pipe jacks (4) provided in a dense and equidistant arrangement around the perimeter of the start shaft, and numbering the pipe jacks; then using a pushing force generated by a pushing device to overcome a friction between the pipe channel and the surrounding soil, pushing the standard pipe jack (4) into a soil layer according to a determined gradient, providing a freezing pipe (3) in odd-numbered pipe channels (3) and a circulating pipe channel in even-numbered pipe channels, and providing corresponding cables inside every pipe channel; using a connection device to connect the standard pipe jacks (4); and pushing the remaining pipe channels according to a sequence, removing the soil, connecting the pipe channels within the standard pipe jack (4) and connecting a corresponding pipeline to form a stable space, with a connection pipe channel (7) in the periphery providing an anchoring and supporting function.

Inventors:
ZHAO HAIFENG (CN)
Application Number:
PCT/CN2017/113451
Publication Date:
June 28, 2018
Filing Date:
December 13, 2017
Export Citation:
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Assignee:
CHINA MCC17 GROUP LTD (CN)
International Classes:
E02D19/14
Foreign References:
CN104088652A2014-10-08
CN105257297A2016-01-20
CN106759413A2017-05-31
AT393524B1991-11-11
KR20050059019A2005-06-17
Attorney, Agent or Firm:
MA'ANSHAN CITY JINQIAO PATENT AGENT LTD. (CN)
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