Penetrometers Articles

  • GPR goes underground: Pipe Penetrating Radar

    Abstract: Pipe Penetrating Radar (PPR) is the underground in-pipe application of ground penetrating radar (GPR) either robotically or by manned entry to reveal wall thickness, delamination, voids, and other conditions that enable more precise determination of pipeline integrity and verifications for trenchless technology rehabilitation. PPR, when applied to pipe-bursting applications, can ...


    By SewerVUE

  • Multi-sensor inspection robot shows benefits of pipe penetrating radar - Case Study

    Pipe penetrating radar (PPR), the in-pipe application of ground penetrating radar (GPR) is one of the most promising quantitative pipe condition assessment technologies to emerge in recent years. With most of the underground pipe infrastructure reaching the end of their design life there is a need to provide measurable data in order to establish the extent of rehabilitation required or the timing ...


    By SewerVUE

  • Flood disasters – a global perspective

    Various disasters in recent decades have confirmed that the risk from water-related events has been increasing significantly worldwide. Among those events are tsunamis, storm surges, river floods, flash floods, mass movements and droughts. The driving factors of this risk are the unabated increase in global population, the concentration of people in high-risk areas such as coasts, flood plains ...


    By IWA Publishing

  • Penetrologger CBR German Federal Defence Force - Case Study

    Project name Penetrologger CBR German Federal Defence Force Client German Federal Defence Force Country Germany Background and objective Three years ago, Eijkelkamp started a project together with the German Federal Defence Force to develop a new type of ...


    By Eijkelkamp Soil & Water

  • Environmental assessment of depleted uranium used in military armor‐piercing rounds in terrestrial systems

    Depleted uranium (DU) from the military testing and use of armor‐piercing kinetic energy penetrators has been shown to accumulate in soils; however, little is known about the toxicity of DU geochemical species created through corrosion/weathering. The purpose of the current study was to assess the toxic effects and bioaccumulation potential of field‐collected DU oxides to the model terrestrial ...


    By John Wiley & Sons, Ltd.

  • The VIY-2 Ground Penetrating Radar

    Abstract The VIY-2 ground penetrating radar (GPR) with unique sounding possibilities and use simplicity is presented at this paper. The VIY-2 GPR combines all units (synchronizer, transmitting and receiving modules, power supply and antenna system) into single case. The VIY-2 GPR communicates with computer via standard interface RS232 or USB 1.0. Utilized by the VIY-2 GPR technical solutions ...


    By Transient Technologies LLC

  • Granulation of biological flocs under elevated pressure: characteristics of granules

    Aerobic granules (AG) have good settling ability and are relatively insensitive to the variation of organic loading rate. When sizes of granules become bigger, substrate and oxygen become limited in the granule core, leading to cell lysis and disintegration of granules. The higher the dissolved oxygen, the deeper the oxygen penetration inside AG. AG operated under elevated pressure might be a ...


    By IWA Publishing

  • CETCO VMS chosen for popular restaurant situated near former dry cleaner site case study

    Project: Buffalo Wild Wings Restaurant Location: Metairie, LA Products: Liquid Boot 500 Gas Vapor Mitigation System GeoVent Gas Venting System Background: The location of a new, two-story Buffalo Wild Wings restaurant was adjacent to a former dry cleaner site. The primary concerns were chlorinated compounds and ...


    By CETCO

  • Advanced Condition Assessments: The benefits of using Pipe Penetrating Radar

    Abstract: Pipe Penetrating Radar (PPR) is the underground in-pipe application of GPR, a non-destructive testing method that can detect defects and cavities within and outside mainline diameter (>18 in/450 mm) nonmetallic (reinforced concrete, vitrified clay, PVC, HDPE, etc.) underground pipes. The key advantage of PPR is the unique ability to map pipe wall thickness and deterioration including ...


    By SewerVUE

  • Effect of distributed generation modelling on performance of distribution systems

    Due to the continuous increase of distributed generation (DG) penetration into distribution systems, load flow analysis always needs improvement to be more flexible, fast and computationally efficient especially when integrating DG with existing distribution systems. The work in this paper is divided into two parts; in the first part a new algorithm is developed to solve the power flow problem ...


    By Inderscience Publishers

  • Walk Behind Carpet Washing Systems for Commercial Applications

    Cleaning carpets in residences and small offices involves maintaining just a limited space. However, when it comes to full-fledged commercial and industrial carpet maintenance, large carpeted areas need to be cleaned. For this reason, such applications demand the use of portable and compact carpet cleaners that are highly efficient and durable. If you are looking for powerful and versatile carpet ...


    By Daimer Industries Inc.

  • Introduction to Ground Penetrating Radar (GPR)

    About GPR Ground Penetrating Radar (GPR) is a non-invasive method of material analysis based on transmitting an ultra wide band EM signal into the materials. A part of the EM wave is reflected when it reaches a boundary between two materials with different electrical properties. The reflected signal gets recorded at the source of the EM wave and is displayed for the operator and ...


    By Geoscanners AB

  • Condition Assessments using Pipe Penetrating Radar: the Metro Wastewater Reclamation District - Denver, CO Harvard Gulch Interceptor Case Study

    Abstract Pipe Penetrating Radar (PPR) is the underground in-pipe application of ground penetrating radar (GPR), a non-destructive testing method that can detect defects and cavities within and outside mainline diameter (>18 in / 450mm) non-metallic (reinforced concrete, vitrified clay, PVC, HDPE, etc.) underground pipes. The key advantage of PPR is the unique ability to map pipe wall ...


    By SewerVUE

  • Autotrophic nitrogen removal at low temperature

    In this work the autotrophic nitrogen removal was carried out at moderately low temperatures using two configurations: a) two-units one comprising a SHARON reactor coupled to an Anammox SBR and b) single-unit one consisting of a granular SBR performing the CANON process. At 20°C the two-units system was limited by the Anammox step and its nitrogen removal capacity was around ten times lower than ...


    By IWA Publishing

  • 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 ...

  • Rotational Penetrometer Surface Testina Report

    Procedures used to install, compact and/or level prior to testing: A 6-inch layer of base course (#2 road base) was installed and compacted. One pound of Hydrogrow polymer-fertilizer mixture was sprinkled onto the base course and spread evenly by hand. The 1-inch Grasspave2 ring and grid structure was then placed over the base course and Hydrogrow mix, ring side up. The Grasspave2 was cut to fit ...


    By Invisible Structures, Inc.

  • Ground Penetrating Radar Evaluation of Concrete Tunnel Linings

    Abstract - Ground penetrating radar was used to map tunnel lining condition and locate concrete deterioration and voids in a continuous and non destructive manner. GPR surveying of Kapoor Water Supply Tunnel, Victoria, Canada was carried out with a 1000 MHz Sensors and Software Ltd., Conquest system mounted on a custom built cart. This 8.8 km long 2.3 m diameter concrete lined circular tunnel was ...


    By SewerVUE

  • Standard Chlorine of Delaware Remediation

    By designing a 70-foot deep barrier wall, Black & Veatch was able to cut off contaminant source areas from a creek near New Castle, Delaware. The groundwater treatment system that Black & Veatch designed prevents site contamination from reaching the underlying drinking water aquifer. The Standard Chlorine of Delaware Site is a 65 acre area including an abandoned chlorobenzene ...


    By Black & Veatch Corporation

  • The effects of dynamic residential load participation: penetration levels for operational impact on reliability

    Building an electrical load system that uses prioritised loads has been suggested as a means of approaching the overloading of the aging electrical infrastructure and thus increasing system reliability. In this paradigm, local controls would shut off electrical loads when overload conditions are being approached in the electrical power system. An unresolved question is how these systems might be ...


    By Inderscience Publishers

  • Photoelectrocatalysis by titanium dioxide for water treatment

    This paper reviews the potential advantages of photoelectrocatalytic treatment of water and considers three general problems – UV penetration, mass transfer and electrode fouling – associated with the practical application of photoelectrocatalytic treatment of water. The three systems selected for these studies, representative of a broad range of possible pollutants, were aqueous solutions of ...


    By Inderscience Publishers

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