In modern combat conditions, sea mine barriers are one of the most effective methods for countering landing operations. The use of mine barriers significantly complicates or completely prevents the movement of ships in coastal areas and fairways. The concept of placement for different types of mines and the functional dependencies of their distribution are of crucial importance, as the probability of damaging ships and the complexity of minesweeping operations for creating passages through minefields during landing operations depend on these factors. This paper examines two types of random mine barrier distributions: Poisson and uniform. It analyzes how mine distribution affects the probability of ship damage, barrier stability, as well as the time and effectiveness of minesweeping, taking into account the overlap of minesweeper passages. It demonstrates that while a Uniform Distribution of mines creates a greater threat to ships, it requires more time for complete area clearance. The Poisson distribution, on the other hand, is less stable but allows for faster minesweeping due to the presence of zones with reduced mine density. The research results allow for determining the optimal mining strategy and evaluating the feasibility of using overlap during minesweeping. The application of the proposed models and calculation methods will help in planning and evaluating the effectiveness of mine-laying and counter-mine operations at sea.