Retaining wall is a kind of structure that supports subgrade fill or
hillside soil and prevents deformation and instability of fill or soil.
▉ name of each part
In the cross section of the retaining wall, the part directly contacting with the supported soil is called the back of the wall;
The part opposite to the wall back and free of air is called the wall surface;
The part in direct contact with the foundation is called the base;
The top surface of the wall opposite to the base is called the top of the wall;
The front end of the base is called the toe of the wall;
The back end of the base is called the heel.
▉ scope of application
When the subgrade meets the following conditions, retaining wall can be considered