COVER OF BLASTING SITES BY WORNOUT AUTOMOBILE TIRES Russian patent published in 2008 - IPC F42D5/05 

FIELD: mining industry, in particular, mining of hard rocks in hindered conditions, when it is necessary to prevent the spread of the blasted rock mass-at re-activation of temporarily inactive edges of deep pits, blastings near the complexes of cyclic-line production, applicable in highway engineering at separation of the edges of deep rock recesses and other similar operations.

SUBSTANCE: the cover of blasting sites by wornout automobile tires is accomplished in the form of a single-layer mat composed of interconnected wornout automobile tires of various dimensions with placement of tires of smaller dimensions in the gaps between the tires of larger dimensions. The mat is fastened on the surface of the bench with the aid of ropes or chains for the anchors installed in not deep boreholes beyond the boundaries of the blasted block. The tires are interconnected with the aid of clamps of a metal strip, and provided with coupling piece, and replaceable nets of chains or grips of bars with windows of various dimensions freely hanging on the clamps are placed inside the tires.

EFFECT: enhanced reliability and service life of the cover from automobile tires due to the use of their elasticity and control of the dimensions of scattered pieces.

3 dwg