geotechnical field data 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.

  • 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 Geophysics: Seismic refraction and refraction microtremor (ReMi) surveys

    ReMi Surveys are superior to MASW Surveys in the following ways: Ambient (ie, traffic and aircraft) “noise” is a hindrance to MASW surveys, yet is readily embraced / utilized by “passive” ReMi surveys Longer ReMi data records (ie, 30 seconds vs 8 seconds or less with MASW) capture lower frequency events We introduce high frequency impulsive energy that ...


    By ECA Geophysics

  • A New Approach to Measuring Dilatancy in Saturated Sands

    The determination of in situ properties of sand has proven to be a difficult objective, especially when it includes assessing volume change characteristics like dilatancy. Difficulty in obtaining representative undisturbed specimens as well as problems with extrapolating laboratory test results to the field has caused many to place increased reliance on in situ testing. One such test that is ...


    By ASTM International

  • The SESAMO early warning system for rainfall-triggered landslides

    The development of Web-based information systems coupled with advanced monitoring systems could prove to be extremely useful in landslide risk management and mitigation. A new frontier in the field of rainfall-triggered landslides (RTLs) lies in the real-time modelling of the relationship between rainfall and slope stability; this requires an intensive monitoring of some key parameters that ...


    By IWA Publishing

  • 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

  • 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  ...

  • Interview with Ronald Ebelhar, 2015 Chairman of the ASTM Board

    Ron Ebelhar has provided leadership in civil engineering projects and ASTM technical committee work since the 1970s. This year, he brings his experience to his elected position as chairman of the ASTM board of directors. You have worked on dozens of engineering projects since getting your degrees in civil engineering. What are some of the most interesting and challenging jobs you ...


    By ASTM International

  • Understanding Geographical Instrumentation

    Geographical instrumentation is one of the much heard terms especially in the field of building. Anywhere, where construction is carried out then services rendered for site examination plays an important role. It helps in identifying possible risks and also effectiveness present within the current site or structure.  Designing of the Site The basic step which is carried out ...


    By Soldata Limited

  • Q&A with Karan Jalota, Application Specialist - Roads & Rail

    In 2004, Dr. J.P. Giroud and Dr. Jie Han advanced the field of geosynthetics when they published their methodology for applying geosynthetics in unpaved structures in the ASCE Journal of Geotechnical and Geoenvironmental Engineering. The methodology has since been adopted by the Federal Highway Administration in 2008, and is considered at the forefront among industry professionals. Karan Jalota, ...


    By Nilex

  • 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

  • Draper Aden Associates counts the benefits of adopting InfoWorks

    Consulting engineering firm Draper Aden Associates has recently begun using InfoWorks for hydraulic modeling and Project Manager Jim O’Dowd has already discovered many advantages of both the water supply and wastewater versions. “In the short time I have been using InfoWorks, I have identified a lot of invaluable ways in which it will prove useful to my clients,” he says. “Clients who had not yet ...


    By Innovyze

  • Greening the Built Environment

    ASTM Standards and Products Form the Foundation of Sustainable Construction Efforts Today, a major focal point for the worldwide building industry is the growing demand for sustainable construction. Sustainable, or “green,” construction is focused on the more effective use of resources and ultimately the creation of healthier, energy efficient, more environmentally ...


    By ASTM International

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