FIELD: construction.
SUBSTANCE: avalanche-protection device comprises an arched gallery made of a metal frame in the form of modules of triangular shape, which is fixed on a rock massif, with a roof slab installed on it with an inclination corresponding to the inclination of the rock massif. Modules of triangular shape are made of two types, some are equipped with at least one bolt, and others with at least one fixing accessory, with the help of which the modules are connected to each other, at the same time in the central part of the bolt along the contour there is a slot, and in the fixing accessory there are holes made perpendicularly to each other for the bolt and fingers with springs, besides, each finger of the fixing accessory is matched with the slot of the bolt and is fixed with a spring.
EFFECT: reduced labour intensiveness and prime cost, less time needed to assemble a structure and increased safety of assembly.
2 cl, 4 dwg
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