What patents are there for the construction method of bridge underwater repair?

The invention relates to an underwater reinforcing and repairing device for piers, and a novel repairing method for cracks of underwater piers. Official website of Haijian Tianjin Engineering Co., Ltd. shows that on July 20th, 2020, a patent for underwater reinforcement and repair device for piers was applied, which can simplify the construction steps, shorten the construction period and reduce the construction cost. Official website of Zhejiang University shows that in April 20021year, a patent for a new method for repairing cracks in underwater piers was applied, which can realize the repair of cracks in arbitrary underwater piers.