Geotec SpA Company Presentation

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8 | Company presentation Geotec S.p.A. 5 Soil investigations Amongst the numerous geotechnical investigations and geognostic surveys carried out over the years by Geotec, importance must be given to the tender awarded by BBT SE, the Brenner Base Tunnel SE for geotechnical and hydrogeological investigations in the project area. The Brenner Base Tunnel, BBT SE is the company designing and planning the Brenner Base Tunnel which will run between Innsbruck and Fortezza for approximately 55 km and which is part of engineering works being carried out on the Munich to Verona route. Deep borheole drilling (Provveditorato OO.PP. year 2011) During construction works of the Brenner Base Tunnel, Geotec performed geognostic surveys in the town of Fortezza and more specifically in the residential area of Mezzaselva, where structural works will need to be carried out for the River Isarco underpass. Skilled drillers from the former company SO.RI.GE. S.r.l., are now part of Geotec’s workforce. This qualified personnel has worked on the most important and difficult jobs and projects carried out in Italy in the last decade. These include geological prospecting for the planning and design of the bridge over the strait of Messina, overhead power lines in Favazzina for Terna S.p.A., the Bologna- Florence high speed/capacity railway line (Consorzio Cavet), the Milan – Genoa high speed/capacity railway line (Consorzio Cociv) etc. This new know-how together with multiple years of experience and a vast vehicle fleet puts Geotec at the top of the national market. Deep borheole drilling (BBT_SE year 2009) Geotec S.p.A. has the equipment and personnel to collect undisturbed soil samples and to carry out Dynamic penetration tests S.P.T., Permeability testing – Lugeon, Lefranc etc. and downhole tests to a depth of 200 metres. Geotec uses the DAC TEST method (all drilling rigs are already equipped) and Geotec is the only Italian company capable of reaching a depth of 1200m using the Wire Line rotary coring technique. SOIL INVESTIGATIONS & LAND SURVEYING
9 | Company presentation Geotec S.p.A. Soil investigations Equipment Availability Drilling Drilling rods with conical threads: Ø est=60÷76mm Standard core barrel T1 Ø 131 mm Standard core barrel T1 Ø 127 mm Standard core barrel T1 Ø 101 mm Double core barrel T6 Ø 116 mm Double core barrel T6 Ø 101 mm Double core barrel T2 Ø 101 mm Double core barrel T6 S Ø 101 mm Complete wire line drilling system (Atlas Copco) SQ Diameter PQ Diameter HQ Diameter NQ Diameter WIRE LINE System – Mori Srl 101 mm (internal Core barrel) 24 m casing Ø 300 mm 30 m casing Ø 219 mm 150 m casing Ø 178 mm 210 m casing Ø 152 mm 360 m casing Ø 127 mm Dynamic penetration tests SPT Shelby samplers Mazier samplers Osterburg samplers Water level indicator length 150m Water level indicator length 500m Down the hole hammer, tricone rock bits various diameters Diamond core bit Hard metal core bit Hard metal core bit CORBORIT vast number 8 16 24 16 16 16 16 240 m 2400 m 4000 m 5600 m 2 x 600 m 24 40 24 16 16 8 Various diameters Various diameters for T6s-T6-T2-T1 core barrels Various diameters for T6s-T6-T2-T1 core barrels Various diameters for T6 T1 core barrels Geotechnical laboratory testing Geotechnical laboratory testing of soil and rocks will be carried out by authorized laboratories according to article 59, comma 2, of the DPR 6.6.2001 n. 380, or other authorized laboratories which conform to the regulations set out in the circular letter 16.12.1999 number 349/STC of the Ministry of Public Works which are also part of the list of official labs indicated by the Central Technical Service of the Ministry of Infrastructure and Transport. Permeability testing Flowmeters used to measure linear, non linear, mass or volumetric flow rate of a liquid or a gas. Single packer Double packer Pressure gauge meter Hydraulic pipes Hydraulic pump Underwater electric pump Geophysical surveys (downhole) DAQ LINK II seismograph 24 bit and 24 channels Geostuff Triaxial BHG-3 geophone adjustable, 200m cable length Ambrogeo Triaxial geophone 150 m Source system used to generate P and S waves Geophysical surveys (Seismic refraction prospecting) DAQ LINK II seismograph 24 bit and 24 channels Horizontal geophone SM-6/HB 4.5 Hz Vertical geophone SM-6/VB 10 Hz Source system used to generate P and S waves 2 1 1 1 2 vast number 1 3 2 2 2 vast number 2 24 24 vast number Geophysical surveys (logging) Sensors to measure thrust, pull and rotation, utensil speed, liquid pressure and flow rate, rotation velocity of utensils. Control unit for acquisition, recording and processing and continuous data return in remote control.
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Geotec SpA Company Presentation

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