Title:
LARGE-SECTION RECTANGULAR PIPE JACKING MACHINE
Document Type and Number:
WIPO Patent Application WO/2021/147310
Kind Code:
A1
Abstract:
Disclosed is a large-section rectangular pipe jacking machine, comprising a front shield body (1), wherein the front shield body (1) comprises a shield body housing (12); a plurality of tunneling systems arranged in a vertical direction are provided in the shield body housing (12); each tunneling system comprises a plurality of horizontally arranged tunneling units; each tunneling unit is formed by arranging vertical partition plates and transverse partition plates in the shield body housing (12) by means of division; the plurality of tunneling systems are horizontally staggered in the vertical direction of the front shield body (1) to form multi-stage step structures; horizontal staggered steps (d1, d2) are formed between every two stages of step structures, such that the front shield body (1) forms a cutting step when a tunnel face is excavated; and each tunneling system only correspondingly cuts a segmented tunnel face, the area of which is equivalent to the tunneling system.
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Inventors:
QIAN DEYU (CN)
MA PENG (CN)
MA PENG (CN)
Application Number:
PCT/CN2020/110754
Publication Date:
July 29, 2021
Filing Date:
August 24, 2020
Export Citation:
Assignee:
QIAN DEYU (CN)
International Classes:
E21D9/08; E21D9/12
Foreign References:
| CN111156013A | 2020-05-15 | |||
| JPH09279999A | 1997-10-28 | |||
| JP2005113594A | 2005-04-28 | |||
| CN107152288A | 2017-09-12 | |||
| CN209621323U | 2019-11-12 | |||
| CN207609424U | 2018-07-13 | |||
| JP2009203671A | 2009-09-10 |
Attorney, Agent or Firm:
JW IP LAW FIRM (CN)
Download PDF:
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