A retaining wall is a structure that holds back soil or rock from a slope. It is used to create level areas in hilly landscapes and can be made from a variety of materials, including wood, stone, and concrete. A deadman retaining wall is one type of retaining wall that uses deadmen (timbers or logs) to anchor the wall in place.
Deadman walls are built by excavating a trench along the slope where the retaining wall will be built. The trench is then filled with gravel and the deadmen are placed on top of the gravel. The deadmen are anchored into the ground with metal cables or rods. Concrete is then poured around the deadmen to create the retaining wall.
Deadman walls are often used for tall or steep slopes where other types of retaining walls would not be strong enough. They are also relatively easy to build, which makes them a popular choice for do-it-yourself projects.