SEISMIC ANCHOR

摘要

Seismic anchor (10) of plastic material, comprising a shaft (1) which is provided at the lower end (3) with an attaching means for an explosive charge (16) with detonator (15), wherein a plurality of arms (5) are integrally formed with the shaft (1), said arms (5) being connected to the shaft (1) by means of a flexible strip (7) and being provided with stop cams (8) to limit the slewing travel of the arms (5) relative to the shaft (1). The shaft (1) is furthermore provided with a passage slit (13) for detonating wires.