Braced Walls or (mostly) strut support

Soldier pile and lagging walls with anchor or strut support
Sheet piling or sheet pile walls with anchor or strut support
Pile walls (contiguous, secant) with anchor or strut support
Diaphragm walls or slurry trench walls with anchor or strut support
Prefabricated diaphragm walls with [...]

Reinforced earth is a composite material formed by the friction between the earth and the reinforcement. By means of friction the soil transfers to the reinforcement the forces built up in the earth mass. The reinforcement thus develops tension and the earth behaves as if it has cohesion.
COMPONENTS OF REINFORCED EARTH

SOIL
SKIN
REINFORCEMENT

SOIL FOR REINFORCED EARTH

Development of [...]

Retaining structures
Generally speaking, any wall that sustains significant lateral soil pressure is a retaining wall. However, the term is usually used with reference to a cantilever retaining wall, which is a freestanding wall without lateral support at its top. For such a wall, the major design consideration is for the actual dimensions of the [...]