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Patent Searching and Data


Title:
SHIELD SEGMENT
Document Type and Number:
WIPO Patent Application WO/2018/233286
Kind Code:
A1
Abstract:
Disclosed is a subway shield segment. The segment comprises a segment body (1) of a graphene-steel fiber concrete structure. A steel bar frame covers the inside of the segment body (1), and comprises an upper layer steel bar net, a lower layer steel bar net, and a plurality of tie bars (2) for connecting the upper layer steel bar net and the lower layer steel bar net; the upper layer steel bar net and the lower layer steel bar net are formed by welding or binding stainless steel bars. The graphene-steel fiber concrete structure is used for manufacturing the segment body of the shield segment, so that the corrosion resistance of the structure can be improved, the corrosion of the inside steel bar frame is reduced, the service life is prolonged, and a great amount of later-stage reinforcing and repair costs are reduced; moreover, graphene and steel fiber are mixed, so that the intensity and the toughness of the concrete structure can be effectively improved, and the intensity of the segment is favorably improved; in addition, the stainless steel bars have corrosion resistance, high intensity, impact resistance, and good adhesion performance with the concrete, and therefore, when the steel bar nets formed by the stainless steel bars are used, the corrosion resistance and the mechanical properties of the shield segment can be further improved.

Inventors:
ZHANG GUOXUE (CN)
SHEN KUN (CN)
Application Number:
PCT/CN2018/073684
Publication Date:
December 27, 2018
Filing Date:
January 23, 2018
Export Citation:
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Assignee:
UNIV FOSHAN (CN)
International Classes:
E21D11/08
Foreign References:
CN105041336A2015-11-11
CN105927251A2016-09-07
CN203702166U2014-07-09
CN107313784A2017-11-03
CN206874287U2018-01-12
JP2009293223A2009-12-17
JP5728360B22015-06-03
Attorney, Agent or Firm:
ETR LAW FIRM (CN)
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