Geotechnical Solutions Articles

  • 5 Reasons to Use Eductor Systems for Complex Rehabilitation

    Rehabilitation of dams and levees present complex geotechnical conditions. Contractors require dry, safe and stable working environments in order to carry out an effective rehabilitation project. As our national dam and levee infrastructure ages, the pressure to stabilize construction sites and lower costs will rise. Eductor systems provide a safe, cost-effective dewatering solution for these ...

  • Vertical Electrical Sounding for Geotechnical Site Characterization - Case Study

    Background The site borehole information demonstrates that the sediments are sitting on the top of Ignimbrite and there is also fractured Ignimbrite weathered with the content of clay is located at the bottom.  Purpose The study was made to determine the sedimentary thicknesses as well as to obtain the contact between ...


    By Advanced Geosciences, Inc.

  • Geotechnical Site Characterization on a Cliff for a Dam Construction - Case Study

    Background There are many cracks, joints, fractures and karstic spaces on the measurement surface of Limestone. Purpose The main subject of this study is for searching karstic features and voids within the body of local limestone for dam construction.  Process The ...


    By Advanced Geosciences, Inc.

  • Use and application of Piezocone Penetration testing in Presumpscot Formation

    Abstract: This paper examines the advantages and limitations of CPTu and SCPTu as an exploration method for geotechnical engineering of Presumpscot Formation. Discussion will include typical results of CPTu and SCPTu data for Presumpscot Formation, application and use for settlement prediction, bearing capacity analysis, slope stability evaluation, and seismic design considerations. Intent is to ...

  • 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) ...

  • 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

  • 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

  • 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

  • Case study - One-pass-trencher used to repair Tyler Dam

    Greg DeWind takes pride in his one-pass trenching machine. With a smile on his face, he watches Wednesday as it is used to dig a trench at the Lake Tyler Dam. The 225,000-pound, 3,000-horsepower machine mixes soil, cement and bentonite clay as it cuts a trench that is 2 1/2-foot wide and about 70 feet deep, according to Steve Richards, with ETTL Engineers and Consultants. It burns about 100 ...

  • Time Is Important To Help You Find the Best Provider of Geotechnical Monitoring Services

    If you visit any city in the world, you will find multiple tall buildings where people reside with their near and dear ones. In the good old days, building such tall structures often took several days to complete. However, with the advanced technologies being used in these modern times, constructing a new building hardly takes a few days. For a common man, it is not possible to understand the ...


    By Soldata Limited

  • Soil quality, local communities and the territorial context: Exploring a latent nexus?

    Soil degradation is increasingly threatening Mediterranean–type ecosystems and the interplay between natural and anthropogenic factors affects (and is in turn influenced by) soil quality. Rural areas with poor soils are characterised by a socioeconomic profile featuring poverty, unemployment and subsidence agriculture. These factors may trigger, in the long term, a downward spiral leading to soil ...


    By Inderscience Publishers

  • Geo Drilling International: Hands-On

    Boart Longyear has launched a core-orientation system made for drillers, by drillers Although critical for mapping exploration and minesite development, core orientation is part of the drilling process that has experienced only incremental product improvements through small changes to the process and equipment. Boart Longyear has now introduced TruCore, a first-inindustry integrated ...


    By Boart Longyear Inc.

  • Jet Grouting in contaminated soils

    Abstract The jet grouting technique has gained wider acceptance in the U.S. over the past few years as a viable tool for such geotechnical applications as the improvement of foundation soils, slope stabilization, and underpinning (Welsh and Burke, 1991). Jet grouting; however, has recently been used as a method of performing block stabilization of contaminated soils as well as for the ...


    By Geo-Con, Inc.

  • Guidelines for specification writing for Deep Soil Mixing

    Abstract: Deep Soil Mixing (DSM) was recently introduced into the United States as a geotechnical and environmental construction method. Primarily, DSM is used for deep foundation improvements. With the onset of this new technology, the need for guidelines for specification writing and the interpretation of testing results arises. This need would include guidelines for specifying construction ...


    By Geo-Con, Inc.

  • 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.

  • Borehole logging case study

    Corozal, Puerto Rico GeoView was tasked to conduct borehole geophysical logging of at a groundwater extraction well in the rural area of the Municipality of Corozal, Puerto Rico. Prior groundwater tests indicated possible contamination of the groundwater. The study area was primarily underlain by stratified, mostly dark gray basaltic tuff, andesite and basalt porphyry rocks assigned to ...


    By GeoView, Inc.

  • TOC Determination in Solid Samples using the Suspension Method

    The TOC content in solids plays an important role in the classification of soils, sludges and sediments. According to the German Ordinance on Environmentally Compatible Storage of Waste from Human Settlements, TOC in solid materials is one of the key parameters for the characterization of wastes as part of the acceptance control of landfills. This important control measure requires a ...

  • 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

  • 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

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