US 12,077,929 B2
Reinforcement method and reinforcement structure of a manhole
Norihiro Fujimoto, Tokyo (JP); Tomoyasu Nagai, Tokyo (JP); Shunsuke Tsuda, Tokyo (JP); and Takashi Sugiura, Tokyo (JP)
Assigned to NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
Appl. No. 17/047,641
Filed by NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
PCT Filed Mar. 26, 2019, PCT No. PCT/JP2019/012769
§ 371(c)(1), (2) Date Oct. 14, 2020,
PCT Pub. No. WO2019/202925, PCT Pub. Date Oct. 24, 2019.
Claims priority of application No. 2018-078732 (JP), filed on Apr. 16, 2018.
Prior Publication US 2021/0148079 A1, May 20, 2021
Int. Cl. E02D 29/12 (2006.01)
CPC E02D 29/121 (2013.01) [E02D 2200/1642 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A reinforcement member of a structure buried underground for reinforcing the structure, the reinforcement member comprising:
a rectangular trunk,
wherein the rectangular trunk includes an upper slab, a sidewall, and a lower slab,
wherein the upper slab and the lower slab except the side wall include a plurality of strip-shaped reinforcing members using a reinforced fiber,
wherein a first set of reinforcing members fixes an upper part of the sidewall and the upper slab in a middle part of the sidewall in a longitudinal direction of the rectangular trunk, and
wherein a second set of the reinforcing members fixes a lower part of the sidewall and the lower slab in the middle part of the sidewall in the longitudinal direction of the rectangular trunk; and
a neck, wherein the neck is in a position shifted from a middle part of the upper slab of the rectangular trunk.