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1. (WO2018185600) METHOD OF PRODUCING CEMENT SEGMENTS FOR TUNNELS, REINFORCED WITH COMPOSITE MATERIAL

Pub. No.:    WO/2018/185600    International Application No.:    PCT/IB2018/052023
Publication Date: Fri Oct 12 01:59:59 CEST 2018 International Filing Date: Tue Mar 27 01:59:59 CEST 2018
IPC: B28B 23/00
B29C 70/34
E04C 5/06
E04C 5/07
Applicants: ATP S.R.L.
Inventors: GIAMUNDO, Aniello Anna
MADDALUNO, Giona
MEDA, Alberto
AFELTRA, Rita
CARRATELLI, Angelo
NARDONE, Fabio
SPAGNUOLO, Simone
Title: METHOD OF PRODUCING CEMENT SEGMENTS FOR TUNNELS, REINFORCED WITH COMPOSITE MATERIAL
Abstract:
Method of producing cement segments (100) for tunnels, reinforced with composite material, and product thus obtained, consisting of the steps of: (A) preparing the unidirectional composite yarn (8), and transferring it to a nozzle (6);(B) making the primary reinforcement (1), by the sub-steps of: (B.1) arranging fixed pins (5) on a translating board (4) which moves through a moving mechanism; said fixed pins (5) forming a closed polygonal line (9) corresponding to the shape of the primary reinforcement (1); (B.2) pre-tensioning, in which the unidirectional composite yarn (8) is pretensioned around the closed polygonal line (9); (C) making the secondary reinforcement (2), by the sub-steps of:(C.1) arranging a plurality of fixed pins (5) on said board (4); (C.2) pre-tensioning;(D) assembling the primary reinforcement (1) into the housings (2.1) arranged on the secondary reinforcement (2), forming the structural cage (10) of the segment (100); (E) strengthening, in which a seam is made to stably connect the primary reinforcement (1) to the secondary reinforcement (2); (F) casting, in which the concrete is cast forming the cement segment (100) for tunnels.