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Static probing
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This program processes and archives
penetrometric equipment readings for
static penetrometers such as
CPT (Cone penetration
test), CPTE (Cone
penetration test electric) and
CPTU (Cone
penetration test Piezocone).
Step intervals - even centimetric-
are user selected.
The most authoritative lithographic
and stratigraphic interpretation
methods are used, both the more
traditional ( Begemann e Schmertmann)
and the more recent (Robertson,
Douglas-Olsen, Koester etc.) with
standard or "normalized" values for
qc & fs.
Stratigraphic interpretation may be
performed either automatically or at
user selection based on site
experience.
Electronic data
gathering unit outputs can be input
directly to the program.
The program provides the facility to
calculate directly bearing capacity
parameters for surface or deep
foundations. |
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INSTRUMENTS
A database of the more common instruments in use is
included
However any other type of equipment may be added
and/or existing one removed.
DATA INPUT AND LAYER MANAGEMENT
Diagrams of tip and lateral resistance develop
progressively in response to user entry of tip and
side resistance readings. Data input may also occur
utilizing the electronic data collection device on
the instrument.
Layer management.
Stratigraphy can be produced automatically
according to the lithologic interpretations of
classical authors: Begemann (1965)
- Schmertmann (1969-1978),
Searle (1979), Douglas &
Olsen (1981), Robertson (1983)
Robertson (1986) according to more recent
authoritative ones in the field of research, or
according to personal criteria acquired by the user
as fruit of experience.
Data input from instrument electronic data
collection device.
The following
geotechnic values are calculated:
Angle of friction
Volume weight
Total and effective lithostatic load on the average
layer level
Relative density Dr
Compaction grade
Average Nspt value
Shear stress strain modulus
Undrained cohesion
Vertical permeability
Lateral pressure - Ko Coeff.
OCR Over consolidation Ratio
Compression index Cc
Coefficient of consolidation Cv
Compressibility factor on the load graph Cm
Average Compressibility factor on the load graph Crm
Confined consolidation (edometric) modulus
compressibility
Young's modulus (E25 – E50)
Undrained Stress strain modulus Eu for cohesive
soils
Cohesion and drained friction for cohesive terrains
(Erminier's method)
Liquefaction
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