Rammed earth: In the early construction of the Great Wall, the technique of rammed earth was used to compact the soil into a wall to form a strong foundation.
Stone: In many places, especially in mountainous and rugged areas, the Great Wall used natural stones to provide greater structural stability.
Fired bricks: During the Ming Dynasty (1368-1644), fired bricks were used in many parts of the Great Wall, and the use of bricks improved the durability and defense of the wall.
Wooden structure: In some towers and passes, wood was used as a supporting and decorative material.
Modern restoration: In some restoration and maintenance works of the Great Wall, modern building materials such as concrete were used to enhance the stability of the structure.
The choice of materials for the Great Wall is closely related to its geographical environment, historical period and construction techniques, reflecting the wisdom of ancient craftsmen and the effective use of local resources. |