BOREMAC Pressuremeter Datasheet

? Allows limiting soil disturbance ? Compatible with the TEXAM control unit ? Rugged construction FEATURES SELF-BORING PRESSUREMETER MODEL BOREMAC APPLICATIONS The self-boring pressuremeter system is used for the in situ measurement of mechanical properties of fine soils. It utilizes a standard N size monocellular TEXAM probe which bores its way into place through fine soils. DESCRIPTION The BOREMAC is comprised of: Desintegrator module This module is at the base of the probe and consists of a cutting shoe and a cutting tool. The position of the cutting tool is adjustable with respect to the leading edge of the shoe. Probe module A standard N-size TEXAM monocellular probe with modified outer metallic rings and jam nuts. Probe-to-outer-rod adapter This adapter is used to link the probe with the outer rod string and contains 4 large openings to allow the return of the drilling fluid and cuttings to the surface. The tubing A high-pressure single conduit fitted with a shut-off quick connect to keep the probe and tubing saturated. Where instrumentation technologies meet Model BOREMAC Self-Boring Pressuremeter System ORDERING INFORMATION Please specify: ? Tubing length ? Accessories SPECIFICATIONS TEST PROCEDURE A drill rig must be used for providing the insertion force required to push the probe into place, for providing the hydraulic force driving the cutting tools, and for injecting drilling fluid. As material enters the cutting shoe, it is broken up by the cutter and brought up to the surface with the drilling fluid in the annular space formed by the outer rod and the borehole walls. When the probe reaches the test depth, the self-boring operation is stopped and the pressuremeter test is carried out, after which the descent of the probe is resumed. Lengths of inner and outer rods are added as needed. Should a layer of gravel have to be traversed or tested, conven-tional drilling techniques are used to advance the hole. The test can be carried out using self-boring probe as-sembly in the pre-drilled hole. Roctest Ltd. · 680 Birch Street, Saint-Lambert, QC, J4P 2N3 CANADA · Tel. 1-450-465-1113 · Fax 1-450-465-1938 · info@roctest.com · www.roctest.com Products and specifications are subject to change without notice. © Roctest Ltd., 2013. E50061-131030 PROBE Diameter (deflated) 73 mm Overall length 180 cm Maximum working pressure in the self-boring mode 4000 kPa Weight 17 kg CUTTING TOOL REQUIREMENTS Supply requirements for the hydraulic motor: 19 l/m (5 gpm) at 17500 kPa Cutter rotation: 50 to 200 rpm Drilling fluid requirements : 2 to 5 gpm at 700 kPa (water or drilling mud) RODS Outer rods OD 46 mm (1 13/16’’) Outer rods ID 38 mm (1 1/2’’) Inner rods OD 12.6 mm (1/2’’) Inner rods ID 6.3 mm (1/4’’) Maximum driving force 4 tons ACCESSORIES ? Rods-to-drill-rig adapter Probe-to-Outer Rod Adapter Probe Module Cutting Shoe and Cutting Tool Rods-to-Drill-Rig Adapter (Optional) BOREMAC System with optional Rods-to-drill-rig adapter