Ship emergency anchoring penetration depth calculation method

The invention discloses a ship emergency anchoring penetration depth calculation method, which comprises the steps of constructing an anchoring model, constructing a stratum model, and calculating the ship anchor penetration amount through a discrete element method, when the anchoring model is constructed, the stress of an anchor before entering water and in the water entering process is analyzed, the speed of the anchor at any underwater water depth can be obtained, and the ship emergency anchoring penetration depth can be calculated. According to a discrete element analysis method, the characteristics of a pebble substrate at the bottom of a riverbed in an engineering area and the dynamic penetration process of impacting the riverbed by the falling anchor are really simulated, so that the penetration depth of emergency anchoring of a ship under the conditions of different anchor types, different water levels and different scouring depths can be conveniently calculated. A support is provided for reasonable b