- Signal
analysis for pile integrity control by the impedance
and reflection methods.
-
Signal analysis and 2 - and 3 - dimensional mapping
for the detection of voids under pavements or
behind voussoirs.
The
measurement values logged by means of a MIMP 16 are exported to a PC fitted with
WINDOWS 95 in order to analyze signals and edit a report (this is also compatible
with the signals issued by the MIMP 15).
The
IMPRO2 software is the best performing of all softwares
meant to analyze signals in order to measure the pile
integrity.
IMPRO2
however remains very easy to use and it allows to
treat data and print results very rapidly.
The
treatment naturally processes through a series of
stages achieved in a logical order.
Each
stage of the treatment is called by an icon.
Treating
a pile only takes a few minutes :
- Creating
a site.
- Entering
the informations.
- Controlling
the force and speed signals.
- Adjusting
the scales in reference to the consistency function
and the force spectra.
- Measuring
the length of a pile and its stiffness by its
mobiliy signals.
- Measuring
the length of a pile by its impulse response.
- Measuring
the length of a pile by recording its reflection
characteristics and building up its profile.
- Visualizing
a table synthesizing the results.
- Visualizing
the documents bound to include into the report.
- Printing
the report or the study of the following pile.
| In
the screen beside, the user has positioned three
markers on maxima of the mobility curve (F/V).
The pile length and the frequency differences
are displayed automatically.
The value of the characteristic impedance of
the pile (Yc) is also displayed.
The MIMP 16 allows to acquire signals from several
hammer strokes on the same pile. This is why
the curves are displayed in a superimposed way.
The red curve is the average mobility. |
|
 |
| From
the pulse response, the user can also determine
the pile length, by moving the cursor along
the echo of the pile bottom :
The length then gets displayed.
An
adjustable exponential amplification can help
make the echo more visible.
|
|
 |
| IMPRO2
allows to plot the reflectogramme as well and
to re-build the pile impedance profile if the
characteristics of the ground are known.
In
the same way as in the previous examples, the
user can determine the length of the foundation
by moving a cursor. He positions it to the base
of the impedance profile or at the good position
on the reflectogramme.
On
the impedance profile shown beside, a slight
shrinkage of the profile can be observed at
a depth of 4 metres. |
|
 |
Among
the great advantages of IMPRO2 is the quality and
rigor of the documents it isues :
-
Representing
the frequency analysis (mobility).
-
Representing
the time analysis (velocity).
-
Representing
the impedance profile.
-
Marking
the quality of the signals.
-
Tolérances.
-
Elevation
(depth) values of the pile.
-
Synthesis
of the results.
A
table that puts all the piles of a site together
is automatically edited in order to produce
a synthesis of the results.
The
‘logo’ on the printed documents
is a Bitmap file. It can therefore be replaced
by the ‘logo’ of the user’s
companyr.
|
|
|
The
user is always offered the choice to print
each document under the following forms :
-
One by one, or for all of the results of a
site ;
-
In colours, or in black and white ;
-
In French, in English, and in Spanish (other
alphabetical languages upon request).
|
|
|
Each
report, as well as the data attached can be
saved and archived.
|
|
|
Void detector
IMPRO2
does not just control piles. It also allows to detect
the voids under pavements, voussoirs or facade tiles.
The
signals logged by means of the specific void detection
software of the MIMP 16 are transferred directly to
a PC.
The
usual void detection criterion is the Mobility x Suppleness
product (Suppleness = 1/Stiffness).
But
IMPRO2 also proposes three other analyses, which can
be represented under the form of 2 - or 3 - dimensional
mappings.
- Mobility.
- Suppleness.
- Quality
of the impacts.
2
- and 3 - dimensional mapping functions allow to highlight
the areas to treat.
The
3 - dimensional plot brings some added value to your
report without any extra work, for the functions are
built-in the IMPRO2 software.
IMPRO2
can be installed on any computer working under WINDOWS
95 or WINDOWS NT.
Minimum
equipment : 486 DX 4x100, 8 Mbytes RAM.
IMPRO2
is available in English, French, and spanish (any
other alphabetical language upon request).
IMPRO2
supplied along with a very clear user’s manual
in French, in English and in spanish.
No
specific training is required to use the interface
of the software, but a training about the theory of
impulse methods can be delivered by the CEBTP
<Pile
integrity testing by the reflection and impedance
method with the
MIMP16>
<Theory about pile control by pulse methods>
<The different means
of controlling a foundation>
