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The Great Wall of China

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The Great Wall of China Construction The Great Wall is made mostly out of granite and bricks. In the Gobi Desert, the workers would create pounded earth to continue ... – PowerPoint PPT presentation

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Title: The Great Wall of China


1
The Great Wall of China
2
Construction
  • The Great Wall is made mostly out of granite and
    bricks.
  • In the Gobi Desert, the workers would create
    pounded earth to continue building the wall.
  • Easily destroyed

3
Construction
  • The Great Wall was constructed with natural
    materials such as stone and compacted soil.
  • The Great Wall took up 3 million cubic meters of
    earth work.

4
Beliefs of the Great Wall
  • Used to protect the Chinese. The twist in the
    wall represent the long back of the mighty
    dragon!
  • This was believed to be a good omen

5
Purpose of the Great Wall
  • Prevent troops from the north invading Chinese
    territory.
  • Defend China from attacking Mongols.
  • Defense against ferocious nomadic tribes.
  • The Great Wall also embodies a great deal of
    protection during a battle.

6
Purpose of the Great Wall
  • Worked as a safeguard the Silk Road trade.
  • Housed troops.

7
Parts of the Great Wall
  • Watch towers were at regular intervals of 180
    meters on the wall.
  • Held weapons, house troops
  • Most signal towers were built on hilly areas for
    visibility.

8
Parts of the Great Wall
  • Beacon towers were spaced at intervals of 15 to
    30 miles along the wall.
  • Send messages faster than horse riding.
  • Some parts of the wall were connected and made
    tougher for further attacks.

9
Construction During the Qin Dynasty
  • Constructed the wall with just loose stone.
  • Constructed by a wooden rectangular frame filled
    with loose soil.
  • Workers stomp on the soil until it was four
    inches thick.

10
History
  • An important part to this process was detritus.
  • Detritus was used to make the wall more solid and
    sturdy.

11
History
  • The Han dynasty extended the wall and made it
    more durable.
  • Built in the the Gobi Desert.
  • Started in 206 B.C.

12
Construction During the Han Dynasty
  • They used
  • Red willows, reeds and twigs.
  • Mixed with water and gravel.
  • Worked would stomp in the mixture to make it
    dense.
  • Repeated over and over.

13
History
  • The Ming dynasty added the most modifications and
    adjustments.
  • Watch holes
  • Used both the Qin and the Han dynastys
    construction method.

14
Construction During the Ming Dynasty
  • Add tampered earth.
  • Then add a layer of bricks.
  • This method was such a success.
  • They could build on steep mountains and inclines
    of up to seventy degrees!

15
The Great Wall of China Documentary
  • http//www.youtube.com/watch?vbLMVZohnCwA
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