Traditional flood control embankment materials have significant drawbacks: concrete is heavy, requires a long construction period, and is prone to leakage; steel sheet piles are susceptible to corrosion, have a short service life, incur high maintenance costs, and pollute the environment; stone revetments are expensive, lack structural integrity, and struggle to withstand flood scouring. Polymer-reinforced steel sheet piles are made from eco-friendly polymer composite materials and are formed into a single unit through high-temperature, high-pressure molding. They offer excellent tensile and flexural strength. Featuring an interlocking joint design, they provide outstanding waterproofing and anti-disengagement capabilities, as well as corrosion and aging resistance, with a service life of over 50 years.

Weighing only one-fifth that of concrete and one-eighth that of steel sheet piles, they require no large-scale construction equipment. Installation can be completed quickly using manual labor and small machinery, increasing construction efficiency by over 50% and shortening project timelines by 20%–30%. Additionally, the material is non-toxic and harmless. It features built-in ecological openings that allow for the cultivation of aquatic plants and the creation of biological habitats, enabling a symbiotic relationship between embankment projects and ecosystems. The total life-cycle cost is 30%–40% lower than that of traditional materials. These sheets have been successfully applied in numerous projects, such as the Haining Xiejian Line and the Shanghai Punan Canal, fully validating their dual value in flood control and ecological preservation. As a result, they have become the preferred choice for flood control embankment construction in the new era.