| 摘要 |
Anchoring apparatus in the form of a marine anchor including a fluke member and a load application point on the marine anchor for attaching an anchor-line attachment- means, said anchor in operational configuration being an anchor for operation below the surface of a mooring bed characterized in that a straight line containing said load application point and the centroid of the fluke member surface viewable from said load application point when the anchor is in operation forms a forward-opening centroid angle b with a forward direction F, in which direction said fluke member surface has a minimum projected area, said angle b being in the range 68 to 85 for operation of the anchor in soft cohesice soil and being in the range 50 to 65 for operation in non-cohesive soil whereby a pulling force applied to the anchor by the anchor line at the anchor-line attachment-means load application point, when the anchor fluke centroid is buried at least twice the square root of said maximum projected area below the mooring bed surface causes the anchor to tend to move in the soil of the mooring bed with a substantial component of displacement in said forward direction F.
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