The invention discloses a construction method of an
underwater blocking net, and relates to the technical field of
underwater salvage equipment. The construction method of the
underwater blocking net comprises the following steps that S1, the two ends of the bottom of the blocking net are connected with anchor chains; S2, the blocking net and the two anchor chains are put into water through a workboat; and S3, bases are arranged at the two ends of a river
bank. According to the construction method of the underwater blocking net, stormy
waves drive
water flow to
impact an inclined plate, so that the inclined plate is stressed to deflect, meanwhile, the inclined plate drives an elastic plate to extrude each other during deflection, the elastic plate can drive the inclined plate to continuously vibrate, and an elastic film is pulled through a second pull
rope while the inclined plate deflects or vibrates, so that a device can be prevented from being damaged due to excessive deflection of the inclined plate, it can also be guaranteed that the inclined plate deflects to pull the elastic film, the elastic film and the water
waves are continuously slapped to make a sound, and the
buoy finding and seeking effect is good during underwater rescue.