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When
the CPT data file is imported or
loaded, and
processed, the analysis results are presented in a tabular format
and presented in charts. Most of the soil parameters are presented
on the main page, as shown below while others are accessible
through  Tools menu:
Other
analysis such as pile bearing capacity and settlement analysis may
be accessed through separate pages by using the Tools menu on the toolbar. The tabular data are presented
in tables; the first column of each table is depth of that specific
reading. Other columns are illustrated below:
 "Basic Parameters" table:
qc
: Cone tip resistance as it is read during the
test
fs
: Cone sleeve friction as it is read during the
test
u2
: Pore water pressure as it is read during the
test
qt
: Corrected cone tip resistance = qc +
(1-a)*u2 where a
is net
area ratio (~ 0.8); please read this article for
more information
Qt : Normalized cone resistance =
(qt - sv)/s'v
Bq
: Normalized pore pressure ratio =
(u2-u0)/(qt - sv)
Fr :
Normalized friction ratio = fs/(qt
- sv)
Rf :
Friction ratio = fs/qc *
100
Ic
: Soil
type index (based on Robertson 1986)
Qtn : Normalized cone resistance (based
on iterative procedure proposed by Robertson 2009) = (qt
- sv)/Pa *
(Pa/s'v)n where Pa is atmospheric
pressure ~ 100 kPa
n
: Exponent of Qtn normalization (based on
iterative procedure proposed by Robertson 2009)
Sv : Total overburden stress
(sv)
S'v : Effective overburden stress
(s'v)
Su : Undrained shear strength for
fine-grained soils
Fines
Content : Percent passing sieve #200
N60 : Equivalent SPT blow
counts
N1(60) : Equivalent overburden-corrected
SPT blow counts = N60 * Cn
"Advanced Parameters"
table:
Hydraulic
Conductivity : Coefficient of permeability of the soil
(K)
e
: Void ratio
Cc : Coefficient of compression for
consolidation settlement *
Dr : Relative density of soil
*
Es
: Modulus of elasticity, used for elastic
settlement
Ko
: Coefficient of earth pressure at rest
M : Constrained
modulus
St
: Sensitivity of clay
OCR :
Over-consolidation ratio
F
: Friction angle of soil
Gmax
: Maximum shear modulus
VS
: Shear wave velocity
*
use
this values with cautious, confirm consistency of the results with
other formulas and methods
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