FIELD: mining.
SUBSTANCE: erection method of an earthquake resistant concrete support involves opening driving, installation of a formwork and erection of a concrete lining. In the opening there pre-installed is an anchor support, on which there performed is subsequent installation of a coating adjacent to the opening rock outline and made from low-modulus material performing a function of an earthquake resistant screen. Then, a frame of a dismountable and movable shield formwork is attached to perform the concrete support erection. Besides, in order to exclude stiff contact of ends of anchor rods with the concrete lining at seismic movements, rubber casings are put on rod ends.
EFFECT: improving earthquake resistance of a concrete support.
2 dwg
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