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Browsing by Subject "steel wire mesh"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Możliwości zastosowania siatek stalowych w warunkach zagrożeń dynamicznych
    (2007) Cała, Marek; Roth, Andrea
    This paper deals with loading of the support under rockburst hazard. Such a support should be able to absorb the kinetic energy of the rock blocks ejected to mining underground opening. The high-tensile Tecco mesh, which is made of steel wire with tensile strength of 1770 MPa was described. The Tecco mesh was tested in Australia to determine the force-deflection curve and the breaking load with different bolt patterns and wire diameters. Several numerical calculations (calibrated with laboratory tests) were also performed in Switzerland. Laboratory experiments and numerical calculations showed that Tecco mesh was able to absorb energy from 33,6 $kN/m^{2}$ (Tecco S95/3, wire diameter 3 mm) to 50 $kN/m^{2}$ (Tecco S95/4, wire diameter 4 mm). These values are over a dozen times higher than for welded mesh or chain link mesh. The application of high-tensile steel mesh in mining openings in rockburst prone mines should be seriously considered.