Application of Numerical Simulation Technology for Closure of Seawall Cofferdam Gap

On the basis of various flow rate formulas of cofferdam gap,the application of those formulas and influencing factors are analyzed in detail.In order to determine a reasonable closure plan of seawall cofferdam gap,the numerical simulation technology is used to calculate flow rate and flow field around cofferdam gap and the calculation result is used to determine location,width and structure of cofferdam gap.It will provide the guiding significance to the similar projects.