Chapter 6: Basic Geotechnical and Foundation Principles

OVERVIEW

The following notation is used in this chapter:

SYMBOL

DEFINITION

A		Cross-sectional area
B		Width of the footing
c		Cohesion based on a total stress analysis
c ?		Cohesion based on an effective stress analysis
D _r		Relative density
D ₁₀₀, D ₀		Largest and smallest particle sizes
e		Void ratio of the soil
e _max		Void ratio corresponding to the loosest state of the soil
e _min		Void ratio corresponding to the densest state of the soil
G		Specific gravity
h		Distance above the groundwater table [Eq. (6.19)]
h		Thickness of fill layer [Eq. (6.23)]
h		Total head (Sec. 6.6)
h ?		Equipotential drop, i.e., change in total head (Sec. 6.6)
? h		Change in total head (Sec. 6.6)
h _c		Height of capillary rise
h _e		Elevation head
h _p		Pressure head
h _w		Height of water behind the sheet pile wall (Fig. 6.25)
i		Hydraulic gradient ( i = ? h/ L)
i _c		Critical hydraulic gradient
i _e		Exit hydraulic gradient
I		Influence value
j		Seepage force per unit volume of soil
k		Coefficient of permeability (also known as hydraulic conductivity)
k ₀		Coefficient of lateral earth pressure at rest
L		Length of the footing [Eqs. (6.27) and (6.28)]
L		Length between the total head differences (Sec. 6.6)
m, n		Parameters used...

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