What shape are non-dispersed revetments typically?

Non-dispersed revetments are typically designed in geometric shapes that provide structural integrity and effective erosion control. The "H" shaped and "U" shaped forms are beneficial for channeling water flow, distributing forces evenly, and enhancing stability. These shapes effectively increase the revetment's contact area with the water, which is essential in reducing the impact of wave energy and preventing soil erosion.

The drive-through design allows for added functionality, enabling vehicles or watercraft to move through the structure without disrupting the revetment's integrity. This versatility makes it suitable for various applications, especially in areas prone to flooding or where access is needed while maintaining protective structures.

In contrast, the other shapes listed may not provide the same level of performance in hydraulic conditions typically faced by non-dispersed revetments. For example, rectangular shapes are often less stable in riverine applications, while triangular forms may lack the necessary surface area to effectively manage water pressure and erosion forces.