Geo-Con, Inc.

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  • Remediation of Oil Refinery Sludge Basin

    Remediation of Oil Refinery Sludge Basin

    Abstract Work was completed in early 1992 to clean up a 5.5 acre (2.2 ha) stormwater sludge basin for an oil refinery company. The basin, which had served as a stormwater collection and settling pond for over 40 years, contained oily sludges with ...

    Wayne S. Adaska;Wayne Ten Bruin;Steven R. Day

  • Insitu mixing of dry and slurried reagents in soil and sludge using shallow soil mixing

    Insitu mixing of dry and slurried reagents in soil and sludge using shallow soil mixing

    Introduction Recent implementation for the Federal Hazardous Waste Land Disposal Restrictions (LDR) to RCRA and USEPA`s willingness to approve on-site treatment and/or containment has allowed in situ treatment methods to become viable options in ...

    C. Wayne Aldridge;Aiman Naguib

  • Shallow Soil Mixing - a case history

    Shallow Soil Mixing - a case history

    Abstract Shallow Soil Mixing (SSM) is a sister technology to Deep Soil Mixing (DSM) developed to more economically improve soils within ten meters of the surface. SSM was recently utilized to provide a foundation for large effluent storage tanks as ...

    David Broomhead;BRIAN H. JASPERSE

  • Installation of vertical barriers using deep soil mixing

    Installation of vertical barriers using deep soil mixing

    Introduction As contamination from liquid wastes and polluted groundwater continue to be a major environmental remediation topic, methods and applications for installing vertical barriers continue to evolve. The need to contain the pollutants to ...

    BRIAN H. JASPERSE;A. David Miller

  • Deep soil mixing at the Jackson Lake Dam

    Deep soil mixing at the Jackson Lake Dam

    Abstract: The Jackson Lake Dam was constructed in 1917 in the Grand Teton National Park near Jackson, Wyoming. The dam was a hydraulic fill placed on a natural alluvium and outwash foundation. The Bureau of Reclamation (Burec) determined that the ...

    BRIAN H. JASPERSE;Christopher R. Ryan

  • Guidelines for specification writing for Deep Soil Mixing

    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 ...

  • Deep soil mixing shoring system to construct a 60 MGD, 40 foot deep wastewater pumping station

    Deep soil mixing shoring system to construct a 60 MGD, 40 foot deep wastewater pumping station

    The City of San Mateo, CA operates three wastewater pumping stations on a 80` wide lot located in a residential area near San Francisco Bay. The age of the stations range from 12 to 50 years, the stations have difficulty pumping peak wet weather ...

    Darla Reams;Jeffrey B. Glover;David J. Reardon

  • Site remediation using soil mixing techniques of a hazardous waste site: a case history

    Site remediation using soil mixing techniques of a hazardous waste site: a case history

    Introduction At 2,400 beds, the $112.5 million Allegheny County Jail in Pittsburgh, PA, will be one of the nation`s largest county jails. The disused downtown site chosen by the Urban Redevelopment Authority of Pittsburgh sits alongside the ...

    Andrew D. Walker

  • Jet Grouting to construct a Soilcrete wall using a twin stem system

    Jet Grouting to construct a Soilcrete wall using a twin stem system

    Abstract: An existing coal-loading pier located in Norfolk, Virginia was completed in 1961 for the purpose of loading ocean-going ships with coal for export throughout the world. The size of the ships that could be fully loaded at this facility was ...

    Kenneth B. Andromalos;A. M. ASCE;Herff N. Gazaway

  • Installation of a grout curtain at a hazardous waste landfill

    Installation of a grout curtain at a hazardous waste landfill

    Abstract: An existing inactive hazardous waste landfill located in Niagara Falls, New York was exhibiting migration of contaminants due to lateral groundwater flow in the underlying dolomitic limestone bedrock. It was determined that the ...

    Herff N. Gazaway;Kenneth B. Andromalos;Richard M. Coad

  • Jet Grouting in contaminated soils

    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, ...

    Herff N. Gazaway;BRIAN H. JASPERSE

  • Deep groundwater collection tenches by the bio-polymer drain method

    Deep groundwater collection tenches by the bio-polymer drain method

    Introduction The installation of deep drainage trenches has long been a risk-filled and costly endeavor, conventional installation techniques involve dewatering, sheeting and shoring, and danger to personnel working in the trench from trench ...

    Steven R. Day

  • In-situ stabilization using Shallow Soil Mixing and Deep Soil Mixing

    In-situ stabilization using Shallow Soil Mixing and Deep Soil Mixing

    Of the currently emerging technologies for site remediation, one of the most attractive and economical is in-situ stabilization and/or in-situ fixation of contaminated soils by Shallow Soil Mixing (SSM) or Deep Soil Mixing (DSM). Actually, the soil ...

    BRIAN H. JASPERSE

  • Cement industries solution to Waste Management - Remediation of oil refinery sludge basin

    Cement industries solution to Waste Management - Remediation of oil refinery sludge basin

    Abstract Work was completed in early 1992 to clean up a 5.5 acre (2.2 ha) stormwater sludge basin for an oil refinery company. The basin, which had served as a stormwater collection and settling pond for over 40 years, contained oily sludges with ...

    Wayne S. Adaska;Wayne Ten Bruin;Steven R. Day

  • ASCE Geolechnlcal division specialty conference grouting - Soil improvement and geosvnthetlcs New Orleans. Louisiana and Shallow Soil Mixing

    ASCE Geolechnlcal division specialty conference grouting - Soil improvement and geosvnthetlcs New Orleans. Louisiana and Shallow Soil Mixing

    Abstract Shallow Soil Mixing (SSM) is a sister technology to Deep Soil Mixing (DSM) developed to more economically improve soils within ten meters of the surface. SSM was recently utilized to provide a foundation for large effluent storage tanks as ...

    BRIAN H. JASPERSE;David Broomhead

  • ASTM Symposium on Design, Construction, and Testing of Deep foundation improvement; Stone columns and other related techniques Las Vegas, Nevada

    ASTM Symposium on Design, Construction, and Testing of Deep foundation improvement; Stone columns and other related techniques Las Vegas, Nevada

    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 ...

    BRIAN H. JASPERSE;A. David Miller

  • Installation of a deep drainage trench by the bio-polymer slurry drain technique

    Installation of a deep drainage trench by the bio-polymer slurry drain technique

    Introduction An underground diesel fuel spill at a county bus maintenance facility in San Jose, California was successfully remediated by constructing a pair of 50 feet deep, gravel-filled extraction trenches. Well casings with ejector pumps were ...

    Steven R. Day;Richard W. Hanford