Sea walls are structures that are built along the coastlines to protect the land from erosion, flooding, and wave damage. Sea walls can be made of different materials, such as concrete, steel, wood, or stone. However, these materials have some disadvantages, such as high cost, corrosion, environmental impact, and maintenance issues. Therefore, there is a need for a more durable, economical, and environmentally friendly alternative for sea wall construction.

One of the emerging solutions is fiberglass sheet piles, which are also known as frp piling walls, frp sheet piling walls, or frp piling retaining walls. Fiberglass sheet piles are made of fiberglass reinforced polymer (FRP), which is a composite material that consists of glass fibers embedded in a resin matrix. Fiberglass sheet piles have many advantages over conventional materials, such as:

High strength and stiffness: Fiberglass sheet piles can withstand high loads and stresses without deformation or failure. They can also resist impact, fatigue, and abrasion.

Low weight and easy installation: Fiberglass sheet piles are much lighter than steel or concrete sheet piles, which reduces the transportation and installation costs. They can also be easily cut, drilled, or spliced on site.

Corrosion resistance and long service life: Fiberglass sheet piles are immune to corrosion from seawater, chemicals, or biological agents. They do not rust, rot, or decay. They can last for more than 50 years without significant deterioration.

Environmental friendliness and aesthetics: Fiberglass sheet piles do not leach harmful substances into the water or soil. They also have a smooth surface and a variety of colors that can blend with the natural surroundings.

Fiberglass sheet piles have been successfully used for sea wall protection in many countries around the world. For example, in Japan, fiberglass sheet piles were used to repair and reinforce the damaged sea walls after the 2011 earthquake and tsunami. In the United States, fiberglass sheet piles were used to construct a new sea wall along the Atlantic City Boardwalk in New Jersey. In Australia, fiberglass sheet piles were used to replace the old timber sea wall at the Port Macquarie Breakwall in New South Wales.

Fiberglass sheet piles are a promising technology that can provide effective and sustainable sea wall protection. They can enhance the coastal resilience and reduce the risk of coastal disasters. They can also improve the coastal aesthetics and ecology. Therefore, fiberglass sheet piles are worth considering for future sea wall projects.