SHELTER OF BLAST AREAS OF AUTOMOBILE TIRES Russian patent published in 2005 - IPC

FIELD: mining art, applicable in mining of hard rocks in restricted conditions, when it is necessary to exclude scattering of the blasted rock mass.

SUBSTANCE: the shelter is made in the form of a single-layer mat placed on the surface of the area to be blasted, composed of interconnected automobile tires of a different size so that the tires of the smaller size would be inscribed in the clearances between the tires of a large size. The single-layer mat may fastened on the bench surface with the aid of cables or chains attached to the anchors installed in not deep holes outside to block to be blasted. Part of the single-layer mat is placed on the slope and bottom of the bench to be blasted so that the mat foldings on the lower and upper shoulders of the bench would fall within the joints of the large tires of the single-layer mat, and 1-2 tires would be placed on the bench bottom in the length of the mat.

EFFECT: enhanced safety of blasting.

2 cl, 2 dwg