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Historical overview of Controlling foundation
length by the parallel seismic method at CEBTP
Jean PAQUET's team at CEBTP worked a lot about the parallel
seismic method meant to measure a foundation in the 60s, as
well as about the sonic coring method.
The fact is, the sonic coring method demands that tubes are
set in the pile before concrete casting upon pile building.
This method was a recent one by the time, and only few piles
were fitted with such tubes. Trials were therefore carried
out in 1967, by boring on both sides of the foundation, in
order to try to detect possible defects in it.
The setting of the parallel seismic method were therefore
established, and trials were carried out very rapidly and
successfully.
Commercial tests were also performed, in particular at the
La Havre thermal power plant (France).
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But not until 1981 was a specific material called SPL
11 developed.
This material, based upon a DIGITAL EQUIPMENT LSI 112
microprocessor could plot the signals on an analogic
X-Y recorder.
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More recently, of course, CEBTP developed the CS 97
which included the seismic parallel method in addition
to the sonic coring method.
The CS 97 is endowed with a program computing mean
straight lines and seismic velocities automatically
; it allows storage and printing, and is for so certainly
the best performing equipment to operate the parallel
seismic method.
Frédéric BOURDET, 1998
Service matériel CEBTP
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• Back to the characteristics
of the parallel seismic method with the CS97 equipment
You can obtain a complete set of documents about these new
equipments quickly by simply placing a request at :
M. Frédéric BOURDET
By Email
f.bourdet@gingergroupe.com
By Télécopie : +33 1 30 85 23 79
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By courrier :
GINGER CEBTP
Service matériels
12 Avenue Gay Lussac
ZA La Clef St Pierre
78990 ELANCOURT
France
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| The texts in the present document only
have an information purpose, and neither their author
nor CEBTP are committed by them. |
The texts, schemes and photographs represented
in the present pages are an exclusive property of CEBTP
and they cannot be reproduced under any form without a
previous written authorization of CEBTP |
Copyright ©, 2009,
CEBTP All rights reserved
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