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  • DFI
    Foundation Stabilization of the Morris Island Lighthouse

    "The Morris Island Lighthouse (MIL) is located between the jetties leading to the Charleston Harbor and Folly Beach, S.C. The present structure is the third lighthouse to occupy this location. The fir

    Jan 1, 2017

  • DFI
    Quality Control of Production Pile Installations for US-90 Replacement Bridge Over St. Louis Bay

    By Kevin Kuhl

    With the destruction of the US-90 Bridge spanning St. Louis Bay by Hurricane Katrina, the State of Mississippi awarded its first major design-build contract in order to have a completed four-lane brid

    May 11, 2007

  • DFI
    Improved Drainage by Drilled Filter Drains, Dam Safety Upgrade, Case Study

    By Carl-Oscar Nilsson, Åke B. Nilsson

    "The embankment dam at Storfinnforsen is 23 m high and was completed in 1954. The dam has an impervious zone with timber sheet piles and a support fill of glacial till. The pore water pressure in the

    Jan 1, 2016

  • DFI
    Drilled Shaft Acceptance Criteria Based Upon Thermal Integrity Profiling

    By Garland Likins, Gray Mullins, George Piscsalko

    "Quality control of drilled shafts is greatly dependent upon the practices of the site personnel. For drilled shafts cast under slurry, inspection of the hole prior to concreting is very difficult or

    Jan 1, 2016

  • DFI
    Innovative Drilled Shaft Installation Process Through Existing Bridge Foundations

    By Tracy Brettmann

    The Highway 146 Bridge Expansion Project across the Clear Creek Channel in Houston, Texas was designed on driven precast concrete piles. However, during construction, the piles along one side of the b

    May 1, 2022

  • DFI
    Smart Soil Improvement: The Use of Rigid Inclusions for Soil Consolidation

    By Federico Pagliacci, Claudio Asioli, Marco Chiarabelli

    """Rigid inclusions"" are a consolidation method that provides improvement of soft soils thanks to the installation of cylindrical columns made up of a material with significant and permanent cohesive

    Jan 1, 2017

  • DFI
    Willow Island Hydroelectric Project: Taming the Ohio River to Create Green Energy

    By James M. Tantalla, Jr. Ellman

    "Construction of the powerhouse for the Willow Island Hydroelectric Project, located at the Willow Island Lock and Dam, required a 120-ft deep temporary excavation inside the limits of a cellular coff

    Jan 1, 2016

  • DFI
    Collaborative Value Engineering Redesign - DFI 2020

    By Martin Mcdermott, Kevin Tehansky, Robert Ross, Jeffrey Goodwin

    A foundation value engineering redesign is a collaboration between the project owner, original design team, general contractor, foundation contractor and redesign team. Without the acceptance and coll

  • DFI
    Gordie Howe International Bridge Foundations - Drilled Shaft Construction in Challenging Detroit Limestone

    By Jim Glider, Noah Miner

    The Gordie Howe International Bridge is a project to build a cable-stayed bridge and border crossing across the Detroit River. With a span length of 2,800-ft (853.4 meters), the Gordie Howe Internatio

    Sep 8, 2021

  • DFI
    Load Testing Methods

    This Section describes four alternative methods for load testing of drilled shafts: high strain dynamic test (HSDT), rapid load test, static load test, and bottom load test. Until recently, static loa

    Jan 1, 2004

  • DFI
    Non-Destructive Testing, Evaluation And Re-Use Of Deep Foundations Along The East Coast

    By Matthew E. Meyer

    Renovation, rehabilitation, restoration and expansion of existing residential, retail, commercial, hospital facilities and historic structures requires assessment and evaluation of foundation systems

    Jan 1, 2009

  • DFI
    The Power of Committee Research: The DFI Rock Socket Project

    By Anne Lemnitzer

    Experimental data are the cornerstone of scientific research, providing empirical evidence to validate hypotheses, test theories, inform decision-making and help develop innovative design and analysis

    Nov 1, 2023

  • DFI
    Construction of a Deep Slurry Cutoff Wall for the Sacramento River East Levee Program

    By Louay Owaidat, Daniel Jabbour, Allan Frappier, Jose Gomez, Mark Stanley, Tino Maestas

    The U.S. Army Corps of Engineers (USACE) is implementing a levee strengthening program along the Sacramento River East Levee (SREL) designed to correct 11 miles of deficient levees as identified by re

    Sep 8, 2021

  • DFI
    Remedial Method for Collapse Soil Foundation of Mosul Dam

    By Arash Khosravifar, Ali N. Ibrahim

    "Large areas of Iraq are covered with collapsible soils namely gypsiferous soil which is often used as the foundation soil for structures. In particular, the Mosul Dam foundation is comprised of high

    Jan 1, 2017

  • DFI
    The Need For Air Control In Down The Hole Hammer Casing Advancement Drilling

    By Frank J. Purcell

    “Down The Hole” (DTH) hammer drilling is often necessary to advance the casing during pile construction where the test bores have determined difficult drilling conditions with obstructions such as bou

    Nov 1, 2022

  • DFI
    Shoring of Long Beach Main Pump Station Utilizing Ground Improvement Methods, Long Beach, CA

    By Eric Lindquist, John Compagnone, Gabriel Carvajal

    "Condon-Johnson & Associates, Inc. (CJA) with the assistance of design consultant, Brierley Associates, designed and installed a water tight shoring system utilizing several ground improvement techniq

    Jan 1, 2017

  • DFI
    Sustainability Considerations in Deep Mixing Applications, With Examples from LPV 111 in New Orleans, LA

    By Craig M. Shillaber, Joseph E. Dove, James K. Mitchell

    "This paper addresses two primary factors affecting the sustainability of Deep Mixing Methods (DMMs): construction materials and handling of the spoil from wet mixing methods. We examine these factors

    Jan 1, 2015

  • DFI
    The Use of Controlled Modulus Column (CMC) Ground Improvement for Support of Large Warehouses

    By Brandon T. Buschmeier, Sonia S. Swift, Michael P. Walker, Frederic Masse

    "Ground improvement has undoubtedly become a cost-efficient and effective solution to support the development of poor soil sites. Ground improvement elements, such as Controlled Modulus Columns (CMCs)

    Jan 1, 2017

  • DFI
    CFA Pile Design Parameters in Sand

    By Stuart Coutts

    "This paper presents an overview of the author’s experience related to the assessment of the base capacity of straight shafted and enlarged-base bored piles in sand. A design approach based on CPT qc

    Jan 1, 1900

  • DFI
    Sheikh Jaber Al-Ahmad Causeway Project in Kuwait - A Case Study

    By Paolo Cavalcoli, Federico Pagliacci, Marco Chiarabelli

    "The Sheikh Jaber Al-Ahmad Causeway Project in Kuwait is estimated at approximately $US3.7 billion and consists of constructing a causeway across the Kuwait Bay, connecting the Shuwaikh Port with the

    Jan 1, 2016