PVC sheet piles are a new type of eco-friendly shoring material. They are primarily made from high-strength PVC alloys, polypropylene, and other polymer composite materials as the base material, with the addition of anti-aging agents, reinforcing agents, and impact-resistant additives. These modular support components are formed through a single-step high-temperature extrusion process and are widely used in engineering fields such as riverbank protection, excavation shoring, and flood control. They represent a high-quality alternative to traditional sheet piles in the trend of “replacing steel with plastic.”
Their material properties combine both rigidity and toughness, fundamentally addressing many of the shortcomings of traditional steel and concrete sheet piles, with particularly prominent core advantages. First, they offer excellent corrosion and aging resistance. The virgin polymer material inherently possesses anti-corrosion, anti-rust, and anti-mold properties, eliminating the need for additional anti-corrosion treatment. They withstand the erosion of seawater, salt spray, acidic or alkaline soils, and industrial wastewater. Even after long-term submersion, they do not rot or become brittle, with a design service life of over 50 years.
Second, they feature remarkable lightweight and high-strength properties. Weighing only 1/5 to 1/8 of steel sheet piles of the same specifications, they can be easily handled and positioned by a single person, eliminating the need for heavy-duty lifting equipment and significantly reducing transportation and construction costs. At the same time, through molecular reinforcement technology optimization, its flexural strength reaches 63–71 MPa, with flexural stiffness approaching that of steel sheet piles. It effectively withstands hydrostatic pressure and flood impacts, accommodates minor ground deformation, and ensures the stability of the retaining structure.
