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EPC Products Civil Engineering Testing Instruments Geotechnical Testing In-situ Testing Rock Mechanics Testing Pressuremeter Test Geopac Pressuremeter
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Geopac Pressuremeter

Model：GeoPAC

Use：allows Ménard pressuremeter test according to the ISO 22476‐4 standard.

Standard：GB 50021-2001,TB 10012-2007,GB 50307-2012,JGJ 340-2015,EN ISO 22476-4

  • Piloting and data acquisition by WIFI with GeoBOX®
  • Automatic procedure - Automatic pressure lag settings
  • Perfect management of the pressure increments

GEOPAC® MANAGES ALL THE DIFFERENT STEPS OF A PRESSUREMETER TEST ACCORDING TO THE ISO 22476-4 AND ASTM D4719-07 STANDARDS.
From the test readings (volume variation based on controlled pressure), a stress-strain curve can be obtained for the soil in the case of plane deformation.
Testing enables definition of three parameters:
  • Ménard pressuremeter modulus (EM)
  • Creep pressure (Pf)
  • Limit pressure (Pl)


IMPLEMENTATION

The operator enters the different parameters of the test in GeoBOX® (borehole number, depth of the test, pressure of 1st pressure stage etc…). As soon as the probe is lowered into the borehole to the required test depth, GeoBOX® can launch the test execution. From now, GeoPAC® controls all the sequences of the whole process: standard test, pressure loss, volume loss, probes bleeding. Pressure increments and pressure lag settings are also automated. During the entire process, GeoBOX® offers a monitoring of the pending test on its screen (progression, real time view of the results, line graph etc…). At any time, the operator can decide to stop the test from GeoBOX®.


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