FIELD: mining.
SUBSTANCE: invention relates to mining industries and is intended for attachment of capital mine workings, mainly of deep vertical shafts in complicated mining-geological and hydrogeological conditions. Tubing for attachment of shafts is made in form of segment of two concentric cylindrical backs, wherein backs are interconnected by support-column elements arranged regularly between backs. On backside there are holes for control cladding and for delivery of concrete mixture between backs, and support-column-type elements have holes for installation of wedge ties during installation of tubing into ring.
EFFECT: technical result consists in improvement of that structure tubing, operational reliability, high technological effectiveness of assembling tubing in tubing ring and improved conditions of uniform distribution of concrete mixture for all cavities between backs tubing.
1 cl, 2 dwg
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