我国幅员辽阔,海岸绵长,大陆海岸线长达1.8万余公里。广大滨海平原是重要的农业产区,但常遭受海潮侵袭,造成极大危害。我国人民在长期与灾害的斗争中创造和发展了海塘工程。早在汉代,今杭州一带已有了一定规模的海塘,比荷兰的海堤要早1400余年,唐宋至清不断增修扩建,形成了北自渤海、南至福建广东的条条海塘,犹如滨海长城,捍卫着生产和人民生命财产的安全。特别是以上海为中心的江南海塘和浙江海塘,反映了我国历史上塘工技术的成就,在国际上 With its vast territory and long stretches of coasts, China’s coast stretches over 18,000 kilometers. The vast coastal plains are important agricultural producing areas, but they are often hit by tidal waves, causing great harm. Our people have created and developed seawall projects in the long struggle against disasters. As early as the Han Dynasty, now Hangzhou has a certain size of the seawall, more than 1,400 years earlier than the Dutch seawall, the Tang, Song and Qing dynasties continue to repair and expand, forming a north from the Bohai Sea, Fujian, Fujian Province, south of the seawall, like the Great Wall of Binhai , Defend the safety of production and people’s lives and property. In particular, the Jiangnan seawall centered on Shanghai and the Zhejiang seawall reflect the achievements of our country’s Tang technology in the international community