What is the function of mine-breaking ship?

Mine-breaking ship is a ship that uses physical fields such as water pressure field, magnetic field and sound field generated by hull collision or ship itself to detonate mines. Also known as mine breakthrough ship or trial ship. It is mainly used to break through the minefield to open a passage for other ships in an emergency, or to check the cleared minefield passage. Eating deep water has strong vitality. The full-load displacement is usually several thousand tons to 6,543.8+0,000 tons. Generally, the old ship is modified, the hull is reinforced, a large number of watertight partitions are installed, and the empty cabin is filled with floating objects. The main power device is installed above the waterline of the hull and adopts a special transmission propulsion mode. All the operations of the whole ship are concentrated on the bridge with damping facilities for remote control. The first world war produced mine-breaking ships, most of which were converted from transport ships, but the effect of mine-breaking was minimal. At the beginning of the Second World War, the British Navy converted the merchant ship "Boulder" with a displacement of more than 5,000 tons into a mine-breaking ship for breaking magnetic mines. 196 1 year, Britain designed and built a mine-breaking ship with a displacement of 3,000 tons and a length of 90 meters, which sank in the test due to mine explosion. 1969, the United States converted the Freewheeler into a mine-breaking ship, which was called "Special Minesweeper" (MSS ~ 1), mainly used for testing and clearing hydraulic mines. By the 1970s, there were no officially-commissioned mine-breaking ships in the navies of all countries.