geotechnical survey Articles

  • 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

  • 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

  • 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 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

  • Geophysics: Refraction / ReMi surveys at a proposed wind farm

    PROJECT: Refraction and ReMi geophysical surveys at a proposed Wind Farm LOCATION: West of Ellensburg, Washington PROJECT DESCRIPTION: Designed and performed seismic refraction / ReMi surveys at 22 proposed Wind Turbine Generator sites for the primary purpose of obtaining shear-wave (Vs) and compressional-wave (Vp) velocities. This information enabled ...


    By ECA Geophysics

  • Panama Canal: Boat Towed 3D Resistivity Surveys - Case Study

    The Panama Canal Authority (ACP) needed to expand the canal in order to accommodate larger ships (and more traffic)—but first, they needed to know two things: what types of sediment loads needed to be dredged out—and more importantly—how much these loads would cost. That’s where AGI marine resistivity imaging ...


    By Advanced Geosciences, Inc.

  • Seismic refraction and MASW case study

    Proposed Gatun Bridge, Colon, Panama The Autoridad del Canal de Panama (ACP) conducted a geotechnical investigation along the footprint of a proposed bridge crossing of the Panama Canal, north of the Gatun Lock. As part of the geotechnical study, GeoView, Spotlight Geophysics and ATI Panamericana were tasked to provide seismic P-wave and S-wave velocity structure of the subsurface. The ...


    By GeoView, Inc.

  • Smart Monitoring Solutions for a Hassle Free Project

    Geotechnical monitoring is very much responsible for the successful completion of any project. This monitoring is done with the help of the geotechnical systems. There are different companies that provide the customized solutions for the geotechnical monitoring. Such solutions include comprehensive programming like designing the systems, installation and delivering on the site, access of the data ...


    By Soldata Limited

  • KASTHEW GEOTECH DRILLING SOLUTIONS CO. UGANDA LTD (EAST AFRICA)

    KASTHEW GEOTECH Solutions Co. Uganda Ltd. offers Geophysical and Hydro-geological surveys, Water well drilling, coring and Geotechnical with services (works, Consultation, project supervision and contracting) across the East African Region. KASTHEW GEOTECH WORKS / SERVICES;- 1.    SITE INVESTIGATIONS (Dam sites, Bridges, Roads, Buildings, Quarries, Mines, Windmills, Towers) ...

  • Sinkhole investigation case study

    Proposed Landfill Site - Sumter County, Florida A geophysical site characterization study was performed by GeoView to assist in the placement of a planned Class 2 Landfill in Florida. The survey area was approximately 160 acres. GeoView performed a ground penetrating radar (GPR) study map the lateral boundaries and determine apparent severity of karst (sinkhole) features. Electrical ...


    By GeoView, Inc.

  • Residential sinkhole investigation csae study

    Hernando County, Florida Geophysical techniques are commonly used as part of geotechnical investigations for sinkhole claims of residential structures. GeoView, Inc. has performed thousands geophysical surveys for residential sinkhole investigations throughout Florida, Tennessee and Georgia. The investigations involve performing ground penetrating radar (GPR) and/or electrical ...


    By GeoView, Inc.

  • Waste management planning in the Maldives

    The island paradise of the Maldives attracts many tourists every year, but more people means more waste and a greater impact on the environment. Sweco has therefore been chosen by the Maldivan Ministry of Environment to assist in finding a good solution for management of waste on the islands.  In the assignment, Sweco has been given responsibility for detail design of the new waste ...


    By Sweco

  • 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

  • Staying Safe with Environmental Monitoring

    Geotechnical Instrumentation involves administering the earth and environment and it is hence that designers have made different frameworks to make the occupation simpler. These frameworks grab thousands upon much information that it orders and illuminates so they can concoct evidence. The places where it is necessary are the pollution chance appraisal, trends in time and space; anticipatory ...


    By Soldata Limited

  • Tunneling Under Austin, Protecting the Environment, and Preserving the Peace

    ABSTRACTFor over a decade, an existing 42-inch wastewater interceptor has plagued the Austin Water Utility (Utility) with higher than usual maintenance demands. Located in the Walnut Creek flow line, this interceptor is partially exposed with manholes rising several feet above the creek bed due to years of erosion. The interceptor suffers from external erosion and is victim to debris floating ...

  • MASW and resistivity sounding case study

    Anclote Natural Gas Conversion Project, Pasco County, FL  Our client was coordinating the conversion of an oil-burning power plant to natural gas. As part of the associated geotechnical study, GeoView, Inc. was tasked with determining the S-wave velocity and vertical resistivity structure at the site. For the seismic portion of the study, MASW (Multi-channel Analysis of Surface ...


    By GeoView, Inc.

  • Dredging Short Courses

    By Eric Lillberg, SRS Crisafulli Senior Applications Engineer When I first started as an applications engineer for SRS Crisafulli, I searched for information on the subject of dredging. I was surprised to find there was very little non-commercial content available. I have since found a pair of short courses, offered annually by Texas ...


    By SRS Crisafulli, Inc.

  • 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

  • Reservoir inundation Modeling (RIM) using InfoWorks RS 2D

    MWH Soft’s InfoWorks RS 2D solution has been found to perform extremely well in an Environment Agency trial project to model and map the impacts of complex cumulative reservoir dam breaches. In England and Wales, the Environment Agency is the Competent Authority responsible for ensuring the safety of the 2092 reservoirs that currently fall under the Reservoirs Act 1975. In addition to this ...


    By Innovyze

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