摘要 |
<p>Explosively embedded anchor assembly (2) for use in sedimentary srata and similarly nonconsolidated or rocky ocean bottom surfaces. The anchor (2) comprises an inertially loaded reaction member (4) above a substantially elongated anchor shaft (12), coaxially positioned around an elongated drive tube assembly (24). The anchor shaft (12), has a number of open cross-section triangular sheet metal anchoring fins (10), providing substantially low resistance to penetration within the strata, but providing substantially high resistance to sideways displacement forces, as would be imposed through a standard anchor rode. The anchor (2) is positioned by lowering the inertial reaction unit (4) and embedded by the weight of the inertial reaction unit (4) a distance into the surface layer of the subocean strata. An internal detonator control (40) assures vertical embedment unless the anchor (2) is vertically positioned. The anchor (2) is remotely fired after initial embedment.</p> |