No
penetration
In
this first situation the anchor lies on the bed of soil and the fluke/shank
angle will be considered as a minimum. When pulling on the mooring line the
anchor will scratch over the seabed. A bed of soil will be formed in front
of the fluke and will give some resistance. Because of this resistance, an
angle κ will reach his maximum at a certain point.
At
that certain point, the bed of soil in front of the fluke will give his highest
resistance and it will become easier to penetrate than scratching over the
seabed.
When
we make the assumption of a perfect sharp fluke point, the point load can
be neglected.
Phase 1