STEEL-AND-POLYMERIC DEEP-LEVEL ANCHORING DEVICE Russian patent published in 2005 - IPC

FIELD: excavation operations, particularly for underground mine reinforcement, for connecting mines one with another and with faces, for consolidating mounting and demounting chambers, slopes and ledges of pits and storage ponds.

SUBSTANCE: device has rod composed of two or more rigid members connected one to another through flexible connection sections. The connection sections are secured to rigid members with contact electric welding.

EFFECT: increased simplicity, reliability and decreased costs, provision of reinforcing steel cuts of different profiles usage for anchoring device forming.

4 cl, 1 dwg