GeoPAC® : Auto-Controlled Pressuremeter MENARD PRESSIOMETER TEST ACCORDING TO THE EN ISO 22476-4 STANDARD What is GeoPAC® ? Following in the footsteps of Louis Ménard, Apageo proposes an exclusive device: GeoPAC®, the Auto-Controlled pressuremeter, driven by GeoBOX®. GeoPAC® , such as its predecessor the Ménard Pressuremeter, allows Ménard pressuremeter test according to the EN ISO 22476-4 standard. It is the first equipment totally automatic and autonomous on the market that manages all the different steps of the test, ordered by the operator. GeoPAC® makes the whole process easier to conduct for the operator, reinforces the reliability of the results, and reduces the time of preparation. What makes GeoPAC® being so original? The ingenuity of the system lays on the physical separation of the 2 circuits necessary to pressuremeter test: Gas and water (exclusive system, never seen on the market). Thanks to this technology on the water circuit, the accuracy on water regulation is nonpareil. GeoPAC® specifications • Dimensions : 1000 * 380 * 340 mm • Max. gas pressure : 70bars • Weight : 45kg (empty) • Power supply : 9 – 18VDC • Handle for transport and wheels • Volumeter capacity : Roughly 1200cm3 Ménard Pressuremeter test A pressuremeter test is an in situ controlled loading test performed on the wall of a borehole using a cylindrical probe that expands radially. From the test readings (volume variation based on controlled pressure), a stress-strain curve can be obtained for the soil at hand in the case of plane deformation. Testing enables definition of three parameters: - Ménard pressuremeter modulus (EM) - Creep pressure (Pf) - Limit pressure (Pl) GeoPAC® and GeoVision® are registered trademarks of APAGEO ZA de Gomberville - 1 rue Salvador Allende - 78114 Magny les Hameaux - FRANCE Tél : +33 (0)1 30 52 35 42 – Fax : +33 (0)1 30 52 30 28 [email protected] – www.apageo.com

GeoPAC® : Auto-Controlled Pressuremeter MENARD PRESSIOMETER TEST ACCORDING TO THE EN ISO 22476-4 STANDARD Implementation 2. 1. ENTER THE TEST PARAMETERS IN GEOBOX® AND ORDER THE EXECUTION PLACE THE PROBE IN THE SOIL WIFI 3. FOLLOW THE TEST IN REAL TIME ON GEOBOX® PRINT OR SAVE DATA ON A USB KEY TRANSFER DATA TO THE OFFICE VIA GPRS SYSTEM 1. The borehole is drilled so as to minimize wall disturbance and maintain a cavity diameter compatible with the probe size (63 or 76 mm). 2. In accordance to the principle of Ménard Pressuremeter test, GeoPAC® executes pressure and volume loss processes,...