geotechnical Articles

  • Geotechnical examples

    This is a collection of various cases where the 2D resistivity imaging method pioneered by Advanced Geosciences Inc have been successfully applied. Click on a section below ...


    By Advanced Geosciences, Inc.

  • Ohio DOT Geotechnical Presentation

    Ohio DOT geotechnical ...


    By EarthSoft, Inc

  • Geotechnical Tomography: The Effects of Diffraction

    Tomographic imaging is the inversion of a field parameter using boundary observations. Current techniques make different simplifying hypotheses. In geotechnical tomography the straight ray assumption is most common. Problems arise when the wavelength is of the same order of magnitude as the size of the inclusion. In this case, the physics of diffraction creates significant effects behind the ...


    By ASTM International

  • Geotechnical examples case study

    This is a collection of various cases where the 2D resistivity imaging method pioneered by Advanced Geosciences Inc have been successfully applied. Click on a section below and you will be shown a full 2D resistivity imaging brochure detailing the case in question. Acknowledgement: These cases have been submitted by satisfied customers whom we thank for permission to publish their data on the ...

  • Geotechnical Properties of Municipal Solid Waste

    A geotechnical testing program was conducted to evaluate the engineering properties of aged solid waste samples retrieved from a landfill that began accepting waste as early as 1940. The conducted tests included water content, specific gravity, Atterberg limits, grain-size distribution, compaction, permeability, consolidation, triaxial, and direct shear. Maximum dry unit weight achieved using the ...


    By ASTM International

  • Testing of Geotechnical Fabric for Use as Reinforcement

    Twenty-seven commercially available petrochemical-based geotechnical fabrics, both woven and nonwoven, and one fiberglass fabric were evaluated for suitability as reinforcement in an embankment test section to be constructed on soft foundation at Pinto Pass in Mobile Harbor, Ala. by the U.S. Army Corps of Engineers Mobile District. All fabrics were subjected to initial testing in uniaxial tension ...


    By ASTM International

  • New Geotechnical Tiltmeter with MEMS Technology

    Introducing the 850 MEMS Tuff Tilt Series, the latest addition to Jewell Instruments’ electrolytic tiltmeter line for geophysical & geotechnical applications. This versatile, rugged, weatherproof tiltmeter is a low-cost alternative to most sensors ...


    By Eneco

  • The Use of a Centrifuge in Geotechnical Engineering Education

    Geotechnical centrifuges have been seen to date principally as research machines. A role is now suggested in which centrifuges of modest size and cost can contribute usefully to the education and training of geotechnical engineers in college laboratories. One such machine, which has been used in teaching for 15 years, is described, and examples of the results of a series of simple demonstrations ...


    By ASTM International

  • Piezo Film Technology and Applications in Geotechnical Testing

    Piezo films are thin, piezoelectric membranes that can be used both as source or as receiver. They may be adapted to a variety of in situ and laboratory geotechnical testing needs. This paper summarizes fundamental concepts in piezo film technology and the physical properties of this material. The principles behind common utilizations are reviewed, and three geotechnical applications are ...


    By ASTM International

  • Geoenvironmental and Geotechnical Data Exchange: Setting the Standard

    Information about the new DIGGS Geotechnical/Geoenvironmental EDD ...


    By EarthSoft, Inc

  • Geotechnical Geophysics: ReMi surveys for retail store expansions

    PROJECT: Refraction Microtremor (ReMi) surveys at active national chain stores LOCATIONS: Wenatchee, Washington / Woodinville, Washington / Yakima, Washington PROJECT DESCRIPTION: Designed and performed ReMi Surveys for active retail properties to passively measure microtremors within the upper 100 feet (30 meters) of the subsurface, in order to acquire ...


    By ECA Geophysics

  • Soil Column Drainage Modelling Using a Geotechnical Centrifuge

    Equipment has been developed to facilitate supplying a soil column with water or draining a soil column under conditions of constant head while the soil column is under centrifugal forces in a geotechnical centrifuge. Accurate monitoring of the water mass transfer is also facilitated by the equipment. At the completion of a modelling sequence, the soil column may be partitioned for moisture ...


    By ASTM International

  • Geotechnical Properties of the Maryland-Sanders Lunar Simulant

    Densely compacted Maryland-Sanders ground basalt was examined for the similarity of its geotechnical properties to those estimated for lunar regolith. Minimum and maximum densities fell within the upper range of those calculated to exist on the moon. Cone penetration resistances measured on specimens compressed to 80 and 100% relative densities bracket those reported for stress equivalent depths ...


    By ASTM International

  • Development of a Transparent Material to Model the Geotechnical Properties of Soils

    Measurement of three-dimensional deformation patterns and flow characteristics within a soil continuum are usually limited by the fact that soil sensors do not provide a continuous image of the measured continuum. Additionally, soil sensors exhibit static and dynamic characteristics that are different from those of the surrounding soils and therefore can change the response of the measured ...


    By ASTM International

  • The Application of Time Domain Reflectometry in Geotechnical Instrumentation

    The performance of road pavements and earth structures is dependent on the moisture regime experienced during their service life. One of the practical challenges in understanding moisture regimes in earth structures has been to continuously monitor moisture fluctuations in a nondestructive and reasonably accurate way. The time domain reflectometry (TDR) device shows considerable promise in ...


    By ASTM International

  • The Use of Hall Effect Semiconductors in Geotechnical Instrumentation

    For the past five years or so Hall effect semiconductors have been increasingly used in the geotechnical engineering laboratories at the University of Surrey. They have been incorporated as sensing elements in local radial and axial strain measuring devices, for the small-strain instrumentation of triaxial specimens, and in small diameter boundary normal and shear stress cells. Triaxial internal ...


    By ASTM International

  • Geotechnical Properties of Expanded Shale Lightweight Aggregate

    In recent years lightweight aggregates are being used increasingly in geotechnical applications. This paper presents results of large-size one-dimensional compression and direct shear tests performed on lightweight aggregate. The compressibility and shear strength characteristics of the lightweight aggregate are compared with those of normal-weight aggregate using the same experimental setup. ...


    By ASTM International

  • Tyre aggregate applications in geotechnical and geoenvironmental engineering

    A Tyre Aggregate (TA) is made from scrap/waste rubber tyres. Four types of tyre aggregates are classified, namely the coarse-grained, fine-grained, random and composite tyre aggregates. Applications of these tyre aggregates are varied, but they are often used as geomaterial fills and highway-pavement components. More recently, TA has found application in geoenvironmental engineering. This paper ...


    By Inderscience Publishers

  • Geotechnical Geophysics: ReMi survey at a hazardous waste landfill.

    PROJECT: ReMi surveys at a closed waste disposal site LOCATION: The Dalles, Oregon PROJECT DESCRIPTION: Designed and performed ReMi Surveys at a closed 8-acre waste disposal site to passively measure microtremors within the upper 55 feet of the subsurface, in order to determine the depth to competent (non-rippable) basalt ...


    By ECA Geophysics

  • Changes in geotechnical properties of Municipal Solid Waste (MSW) in bioreactor landfill with degradation

    The objectives of the research described in this paper are to: study the composition of fresh Municipal Solid Waste (MSW); study the effects of decomposition on physical characteristics of MSW in bioreactor landfill. Initially, composition of the fresh MSW constituents was determined based on 14 bag MSW samples. Then, four small-scale bioreactor landfills were simulated in laboratory and samples ...


    By Inderscience Publishers

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