FIELD: mining industry.
SUBSTANCE: invention relates to devices for fastening underground mine workings, which is a design of metal tubing rings installed in horizontal and inclined shafts of mines, subway tunnels, and can be used to create underground structures and repair existing ones. The tubing support for underground structures comprises a circular cast-iron shaft lining assembled from a number of tubings interconnected into rings, each made in the form of segments, and at least in one part the segments form a convex-concave shape and form a free space in the radial direction. Adjacent rings form one continuous cavity parallel to the axis of the tubing support or four cavities are formed. The free space is formed by one section or a pair of sections.
EFFECT: expanding the functionality by ensuring the placement of transport and technological devices when repairing concrete supports without increasing the cost of implementation.
6 cl, 7 dwg
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