Numerical simulation detection method for water flow scouring concrete pier column

The invention provides a numerical simulation detection method for a water flow scouring concrete pier stud, and relates to the field of numerical simulation detection of concrete pier studs, and the method comprises the steps: obtaining a river water scouring region damage model W corresponding to a to-be-monitored concrete pier stud, obtaining the flow velocity V of the to-be-monitored concrete pier stud in the river water in an actual river, and calculating the flow velocity V of the to-be-monitored concrete pier stud; determining parameters corresponding to different washing time lengths of the W under the condition that the river water flow velocity is V, so as to obtain a parameter list A of the W; establishing a target concrete pier column model H corresponding to the to-be-monitored concrete pier column, and performing finite element model analysis on H to determine a weak area corresponding to the to-be-monitored concrete pier column and a time point of sudden strength change of the to-be-monitored c