cpt measurement Articles

  • Incotec Bolivia CPT case study

    Vertek partner Incotec recently entered the cone penetration test business area with the purchase of a Vertek S4 Push System. Learn more about the geotechnical market in their home country of Bolivia and  ...

  • Helical Probe Tests: Initial Test Calibration

    Helical test probes of different sizes suitable for shallow (1.8-m) in-situ soil exploration and compaction control were developed and tested in different soils alongside traditional in-situ tests, including Standard Penetration tests (SPT), cone penetration tests (CPT), dilatometer tests (DMT), and in-situ density tests. The helical probe test (HPT) is a quick and economical test, which can be ...


    By ASTM International

  • Gmax-qc Relationships for Clays

    Data are compiled from 31 clay sites where in-situ measurements of initial tangent shear modulus (Gmax) and cone tip resistance (qc) were available. Values of Gmax were obtained from either seismic cone penetration (SCPT), crosshole (CHT), downhole (DHT), or spectral analysis of surface wave (SASW) tests, and readings of qc were taken either by regular cone penetration (CPT) or piezocone (CPTU) ...


    By ASTM International

  • Triad use at Naval Base San Diego saves an estimated 6 years and US$3m for site investigation

    The U.S. Naval Facilities Engineering Command Southwest (NAVFAC SW) used the Triad approach to collect an integrated hydrogeologic and chemical dataset for expediting and optimizing characterization of a volatile organic compound (VOC) plume at Naval Base San Diego (NBSD), CA. The 295-acre 'IR Site 22' was identified in 2003 when VOC concentrations reaching 100 mg/L were reported in an upgradient ...

  • Field Screening Methods for the Presence of DNAPL, Superfund Site, southern California

    Characterizing the lateral and vertical extent at a Dense Non Aqueous Phase Liquid (DNAPL) impacted site can prove to be a challenging task. Field methods employed to verify the presence of DNAPL have included the use of down-hole Ultraviolet Induced Florescence technologies, the application of down-hole detection materials such as dye impregnated fabrics, and the installation of monitor wells ...


    By Hargis + Associates Inc

  • S2C2 Inc. utilizes EQuIS, RockWorks and ArcGIS implementing the Triad approach

    When implementing the Triad Approach, S2C2 Inc. (S2C2) relies upon EarthSoft’s EQuIS,ESRI’s ArcGIS and Rockware’s RockWorks software toptimize the management andvisualization of large data sets. The USEPA’s Triad Approach incorporates the following threecomponents: systematic planning, real-time measurements and dynamic work strategies. Theprimary goal of this approach is tstreamline site ...


    By EarthSoft, Inc

  • Analysis of Polychlorinated Biphenyls in Fish Oil Using Supelclean EZ-POP NP, Silica Gel SPE, and an SLB-5ms GC Column

    Polychlorinated biphenyls (PCBs) were once widely used in many industrial and commercial applications such as insulating fluids, dielectrics, and lubricants. This included their extensive use in electrical transformers. PCB use has been banned in many countries, and the Stockholm Convention currently prohibits their production and use ...


    By Sigma-Aldrich Co., LLC

  • Digital Pyrometer with SMART Mode

    The new IMPAC IGAR 6 Advanced ratio pyrometer has new switchover technology that transitions between modes, creating a very long temperature measurement range. The IGAR 6 Advanced is a digital, compact pyrometer with 1-color, 2-color, and Smart operating modes for noncontact temperature measurement in ranges between 100 to 2000 °C. This product is unique not only because of the wide ...

  • 5 Reasons to Go Solar Today

    Homeowners everywhere are enjoying the cost savings and environmental benefits of solar power.  Going solar has never been easier, and never more popular. So why should you go solar today? Save Money Many homeowners don’t realize the savings they can reap by installing solar panels on their roof.   ...


    By Institut für Solartechnik

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