What is sheet piling designed to do?

Sheet piling is primarily designed to create a barrier in the ground, typically used in construction for various purposes including excavation support and water management. The correct answer highlights that sheet piling can be installed by a pile driver, which is a specialized piece of equipment used for driving various types of piles into the ground for structural support.

When sheet piles are driven into the soil, they create a continuous wall that can help support excavations, prevent soil erosion, and control groundwater levels. This method of installation is essential for ensuring that the sheet piles achieve the necessary depth and alignment to function effectively. The ability of sheet piling to be installed using a pile driver emphasizes its role in providing strength and stability during the construction process, especially in areas where soil conditions can vary.

The other options relate to functions that are not primarily associated with sheet piling. While sheet piling can provide some support and stability, it is not specifically designed as a load-bearing wall, nor is it primarily for draining excess water, nor is it considered a direct alternative to concrete in applications where structural integrity is critical. Instead, it serves its unique purpose in creating barriers and supporting construction activities effectively.