shelter

Abstract

This item is a prefabricated shelter that is installed on the ground and used as a bunker, general warehouse, or evacuation center. Liner plates are constructed in two stages by bolting them together circumferentially and axially, and H-shaped reinforcing rings are constructed by bolting them together circumferentially via coupling plates, alternating and connecting them in a series of bolts to form a roughly portal-like tunnel shape with an arched roof. Reinforcing ribs are provided at the left and right base ends of the arch that forms the roof of each reinforcing ring.

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