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  • DFI
    A Novel Approach to Incorporate Shear-Moment Coupling Effects in Foundation Stiffness for Caisson Piles for Izmit Bay Bridge in Turkey

    By Arash Khosravifar, Amalia Giannakou

    "Nonlinear foundation springs for bridge caisson foundations show significant coupling between the shear force and bending moment. Implementing foundation stiffness matrix with coupling effects (off-d

    Jan 1, 2017

  • DFI
    Failure Modes for Embankments over Ground Improved with DCM Column Walls beneath the Slope

    By Manasi Wijerathna, D. S. Liyanapathirana

    "Deep cement mixing is a popular soft ground improving technology that improves the bearing capacity and settlement characteristics of natural soil. When Deep Cement Mixed (DCM) columns are installed

    Jan 1, 1900

  • DFI
    The Effects of Cylindrical Pile Insertion on the Vertical Stiffness and Strength of the Surrounding Soil

    By Emre Biringen

    "Results from a small-scale laboratory experimental program show the changes in the vertical stiffness and strength of a soft clayey soil adjacent to the shaft of an inserted pile (i.e. expansion of a

    Jan 1, 2005

  • DFI
    Using Multiple Pile Types On A Single Project To Maximize Benefits

    By James F. Davis, Matthew A. Conte, Robert F. Tonning

    This is a paper demonstrating the steps taken to combine multiple types of piles for a single site to maximize the benefits and characteristics of each method. We intend to discuss the use of grouted

  • DFI
    Brightman Street Bridge Replacement Project (fbb13111-569c-48aa-97e7-9bb48f6ec170)

    By Jeffrey M. Taylor, Arturo Ressi di Cervia

    "Construction of the drilled shafts for the Brightman Street Bridge Replacement Project were not only challenging due to working over the water but were also challenged by changed soil conditions, con

    Jan 1, 2004

  • DFI
    Trouble In Paradise: Micropiles As A Solution To Challenging Geotech And Steep, Rugged Terrain On The Island Of Oahu

    By Steve Davidow, Scott Tunison

    As the demand for electric power grows and generation facilities are constructed in more remote areas, the industry faces an increasing number of foundation construction challenges. The importance of

  • DFI
    p-y Curves For Analyzing Micropiles in Sandy Soils Using Lateral Load Test Data

    By Mahdi Soudkhah, Akhter Hossain

    Vertical micropiles are generally considered to be low in lateral resistance. Therefore, battered micropiles are often used when additional lateral load carrying capacity is required. However, batteri

    Jan 1, 2019

  • DFI
    Design and Quality Control of Soil Mix Walls for Earth and Water Retaining Structures

    By Nicolas Denies, Jeroen de Leeuw, Bart Lameire, Jan Maertens, André Vervoort, Flip Hoefsloot, Noël Huybrechts, Flor De Cock

    "In recent years, the Deep Mixing Method has increasingly been applied for the construction of earth and water retaining structures. From practice, it has been experienced that there is a real need to

    Jan 1, 2015

  • DFI
    Soil-Cement Columns For Building Foundations

    By Osamu Taki

    The development of new auger bits for soil cement column drilling equipment has made it possible to create a homogeneous mixture of soil and cement-reagent slurry. As a result, soil-cement columns are

    Jan 1, 1992

  • DFI
    Vertical Barrier Wall Installation Using The Vibrated Beam Method; An Appropropriate Technique In Selected Applications

    By Michael E. Ameel

    The vibrated beam method of installing a vertical barrier wall is one of the least applied techniques, yet given certain site conditions and constraints, it is a cost-effective and proven method of co

    Jan 1, 2010

  • DFI
    Interactive 3-Dimensional Modeling of Anchors at Bluestone Dam

    By Jamey Rosen, Georgette Hlepas

    "Bluestone Dam is a concrete gravity structure with an overall length of 2,060 feet and a maximum height of 165 feet above the streambed. Several major project modification designs have been implement

    Jan 1, 2016

  • DFI
    Delving Deeper Into Foundation Slurry Rheology

    By Greg Plutko

    Laboratory testing has shown that the Marsh Funnel test can be significantly impacted by long-chain polymer entanglement. In general, shorter hydration time leads to more chain entanglement which in-t

  • DFI
    Innovative Use Of Ground Improvement

    By Mark Koelling

    This paper presents a case history of a ground improvement program conducted in a soft soil environment and seismically active region in the northwest corner of Washington State near the Canadian bord

    Jan 1, 2010

  • DFI
    Estimation Of Modular Ratio And Modulus Of Deformation Of Granular Piles From In-Situ Compression Tests

    By Padmavathi V, M. Najamuddin, M. R. Madhav

    Granular piles are one of the leading ground improvement techniques, adopted for the betterment of bearing capacity and reduction in settlements of the foundations and also to accelerate consolidation

    Sep 1, 2022

  • DFI
    Philadelphia Dock Story—Pile Challenges at Delaware River

    By Craig H. Olson

    "A new ship dock at a Philadelphia area refinery will be capable of docking the largest tanker to travel the Delaware River, the Stena V-MAX, which will induce significant lateral loads. The loads at

    Jan 1, 2008

  • DFI
    Philadelphia Dock Story—Pile Challenges at Delaware River (06bf9951-abf5-4656-aab7-81fa955662d4)

    By Craig H. Olson

    "Anew ship dock at a Philadelphia area refinery will be capable of docking the largest tanker to travel the Delaware River, the Stena V-MAX, which will induce significant lateral loads. The loads at t

    Jan 1, 2008

  • DFI
    Load Distribution for Underpinning System Using Inherent Rigidity of Concrete Dam

    By Rick Deschamps, Amanda Blank, Matthew W. Drewek, Michael P. Walker

    The Prairie du Sac Dam, located on the Wisconsin River, northwest of Madison, Wisconsin, was constructed 1912-1914. The spillway is an Ambursen-type, consisting of a series timber pile supported pier

    Sep 8, 2021

  • DFI
    Correlation between Undrained Shear Strength in Dry Deep Mixing Columns and Unimproved Soft Soil

    By Stefan Larsson, Jan Ekström, Jennie Kock-Larsen, Håkan Garin

    "This paper describes the testing procedure (or protocols) for quality control of dry deep mixing columns in a major ground improvement project carried out in Sweden. Quality control was mainly based

    Jan 1, 2015

  • DFI
    The Geo-Impuls Programme: Towards Reducing Geotechnical Failure in the Netherlands

    By Paul M. C. B. M. Cools, Martin Th. van Staveren

    In 2010, the 5-years joint industry programme Geo-Impuls started in the Netherlands. The ambitious goal of this programme is to reduce geotechnical failures in our civil engineering projects by half i

    Jan 1, 2017

  • DFI
    Design of a Raft Assisted Piled Foundation for a High Rise Prefabricated Hotel Structure in Perth, Wa.

    By Lucie Spencer, Craig Butterworth

    "This paper presents the design of a raft enhanced pile group recently constructed for a hotel development in Perth, WA. At the time of construction in 2016 the hotel was the tallest prefabricated hot

    Jan 1, 1900