Menard pressure meter STAF®

THE STAF® SYSTEM THE + The most qualitative drilling for pressuremeter tests Conformed to the STDTM specifications spelled out in the ISO 22476-4 standard SELF-BORED TUBE SYSTEM FOR MÉNARD PRESSUREMETER TESTS The STAF®, Self Bored Tube System, has been developed to conform to the STDTM specifications spelled out in the EN ISO 22476-4 Standard for Ménard Pressuremeter Testing, that is the Slotted Tube technique with inside Disintegrating Tool and Mud circulation. This equipment is particularly recommended to emplace the slotted tube in non-homogeneous or overburden layers. APPLICATIONS Slotted Tube technique with inside Disintegrating Tool and Mud circulation (STDTM) DATA ACQUISITION Data can be directly processed on our geotechnical software GeoVision® through a USB key or GPRS transfer The drilling is realized by the eccentric tool followed by the tube column,with a diameter 1 mm upper the tubes diameter. Casings maintain the drilling walls during the whole operation (drilling and test). This drilling method may be carried out with any type of drilling rigs, as long as it is fitted with a hydraulic rotary percussion equipment (VibroSTAF® method) or a rotation head with simultaneous double directions (RotoSTAF® method).