Department
of Earth Science |
Northeastern
Illinois University
Department
of Earth Science |Northeastern
Illinois University
v Describe the relationships
between and among the following properties
of porous materials:
p
porosity and effective porosity;
p
specific retention and specific yield;
p
specific yield and effective porosity; and
p
specific yield, specific retention, and porosity.
v Explain the meaning of the
terms hydraulic conductivity
and permeability (also called intrinsic
permeability), and explain the
difference between the two.
v Give typical ranges of the value of hydraulic conductivity and permeability of different types of porous materials, using the correct units of measurement.
v Sketch the Darcy tube apparatus and describe how it works.
v List the kinds of rocks and
sediments that are generally considered
aquifers, and those that are generally considered aquitards.
v Sketch a cross section
illustrating the generalized hydrostratigraphy
of northeastern Illinois.
v Use your knowledge of
hydraulic properties to solve three practical problems:
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q We will need to add
water to saturate the sediments in the Darcy tube. When we're
done with the experiments, we will need to drain it before putting it
away. Estimate how much water will be needed to fill the Darcy
tube. Then, estimate how much water will drain out. q Figure out how much
water was lost from an aquifer during a drought (Chapter 3, Problem #9,
on p. 111). q On the NEIU campus, to find abundant ground water, would we need to drill shallow wells? Or deep wells? |