LOAD-BEARING ENCLOSURE FOR UNDERGROUND CHANNEL WALLS AND CORRUGATED ELEMENT FOR THIS STRUCTURE (OPTIONS) Russian patent published in 2025 - IPC E21D5/08 E21D11/20 E04B1/38 

FIELD: construction.

SUBSTANCE: invention relates to building structures. Load-bearing barrier structure for walls of an underground channel comprises corrugated elements joined to each other using pads. Each corrugated element is rectangular in plan corrugated plate with corrugations orientation along its length, in which along its edges along length to corrugations projection side pads are welded or attached by high-strength bolted fasteners in the form of at least one corrugation wave each. Pad is attached to plate corrugation projection by projection of its corrugation. First corrugated elements with corrugations oriented along the element length, along the edges along the length, end with the corrugation protrusion upwards. Second corrugated elements with corrugations oriented along the element length at the edges along the length end with the corrugation protrusion downwards. On end sides of corrugated plates of corrugated elements along their width on edges of these sides there made are holes for attachment of end pads having along the length at least two rows of holes coinciding with a pitch of holes arrangement on end sides of corrugated plates. End pads are made in the form of a flat metal strip placed on top or bottom of the corrugated plates to be mated and fixed on these plates by a high-strength bolted fastener passed through the said holes, or in form of corrugated strip with corrugations orientation coinciding with corrugations orientation of corrugated plate, corrugations of the latter follow those of plate over its width and have, at least, two rows of holes over pad length, the pad arranged above or below abutting corrugated plates by laying on corrugations of plates and fastened on said plates by high-strength bolts passed through said holes. When connecting the corrugated elements with side pads to each other, the first corrugated elements are located between the second corrugated elements with the end section of each pad laying on top of the corrugated plate corrugated plate extreme protrusion of the second corrugated element for bolting the pad to the corrugated plate when bolting the side pad of the second corrugated element from below to the protrusion of the corrugation of the corrugated plate of the first corrugated element, every two corrugated elements interconnected by end pads are shifted along the barrier structure length relative to adjacent other two corrugated elements interconnected by end pads to overlap by side pads the joint section overlapped by end pads.

EFFECT: increased carrying capacity of load-bearing barrier structure.

4 cl, 18 dwg, 3 tbl