Chapter 7: Settlement of Structures

OVERVIEW

The following notation is used in this chapter:

SYMBOL

DEFINITION

a _?		Coefficient of compressibility
B		Width of the foundation
c _?		Coefficient of consolidation
C _c		Compression index
C _r		Recompression index
C _{c ?}		Modified compression index
C _{r ?}		Modified recompression index
C _?		Secondary compression ratio
% C		Percent collapse
e		Void ratio
e ₀		Natural or initial void ratio
? e		Change in void ratio
? e _c		Change in void ratio upon wetting
E _s		Drained modulus of the soil
E _u		Undrained modulus of the soil
H		One-half the thickness of the clay layer (double drainage, Fig. 7.14)
H _dr		Height of the drainage path
H ₀		Initial thickness of soil specimen (Fig. 7.6b)
H ₀		Initial thickness of the in situ soil layer
H/D		Height of soil specimen ( H) divided by the diameter of the loaded area ( D)
? H _c		Change in height upon wetting
I _p		Dimensionless parameter derived from the theory of elasticity
k		Coefficient of permeability, also known as the hydraulic conductivity
L		Horizontal distance for calculation of maximum angular distortion
M ₀		Initial dry mass of soil (solubility test)
M _f		Final dry mass of soil (solubility test)
N		Vertical pressure for consolidation test (Fig. 7.15)
N		SPT N-value
OCR		Overconsolidation...

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