Fastening element for use in mining and tunnel construction

Details Fastening element for use in mining and tunnel construction Fastening element for use in mining and tunnel construction

E - Fixed Constructions

21

D

E21D 21/00 (2006.01)

Patent

CA 2703427

A fastening element for use in mining a tunnel construction, has a base body (12; 32; 42); and a plurality of weakenings (14, 15; 34, 35; 44, 45; 54) provided on an outer surface (13; 33; 43; 53) of the base body and a cross-section of which provides a break-off location and which are formed as a spiral extending along a longitudinal extent of the base body (12; 32; 42; 52).

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