1. GEOTECHNICAL
ENGINEERS
Citlaly S.
Thursday, November 14, 13

2. What I is a Geotechnical Engineers?
A geotechnical engineer studies
different kinds of soil like
bedrock,clay, sand, and top soil.
If your wondering
why they study this it's because
before people build a house or a
building they need to know if the
ground is good for the house or
for the building.
Thursday, November 14, 13

3. How a model of an earthquake
is same or different in real life
Same
Were making a model
of how it happens.
When we shake our
model sometimes it falls
and sometimes it
doesn't fall and this is
the same in real life
because sometimes the
building doesn't fall and
sometimes it does.
Thursday, November 14, 13
Different
It was not a real
earthquake because we
did it with our hands.
It's different from a real
earthquake because we
can't make a earthquake
happen when we want it
to.
We don't make the
building fall, it falls on its
own.

4. Which layer of soil is good for
earthquakes?
•
Top soil was not the best because we found out that
earthquakes affect the top soil more than it does to the other
soils and it affects the Top soil more because its on the top.
When we shook our model with the top soil, the building fell
over fast.
•
Sand was a little better than top soil because when we shook
it, the building didn't fall as fast.
•
Clay was the best layer because the deeper the pier
foundations go the more stable it gets and it was a while before
the building fell. So clay is a good soil to use if your using
these soils, pick clay.
Thursday, November 14, 13

5. Advantage and
Disadvantage of bedrock
Advantage
Disadvantage
Structure is not
damaged
Long time to dig
More stable in bedrock
The bedrock helps the
buildings from not
falling over in a
earthquakes
Thursday, November 14, 13
A lot of money
Hard to repair
If the
earthquake is
too strong it can
knock the
building down

6. Here are
some pictures
of what we
did!!!
Thursday, November 14, 13

7. Top Soil
Sand
Clay
In this model there is no bedrock
Thursday, November 14, 13

8. We take a core sample to study the layers. You can
see our topsoil easily, but you can't see the sand
and the clay very well but they are there.
Thursday, November 14, 13

9. The
End
Thursday, November 14, 13