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  • DFI
    Behavior Of Piled Raft Foundation Systems Under A Combined Set Of Loadings

    By Renato P. Cunha

    The paper explores a parametric analysis of a four-pile group in contact (hence piled raft) and without contact (hence standard pile group) with the superficial soil layer, under a combined set of loa

    Jan 1, 2006

  • 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
    Evaluating Installation Disturbance of Helical Anchors in Clay from Field Vane Tests

    By John Erikson, Alan J. Lutenegger, Nicholas Williams

    "In order to evaluate the level of disturbance produced in clays during installation, a series of single-helix and multi-helix anchors were installed at a test site consisting of a stiff overconsolida

    Jan 1, 2017

  • DFI
    Site Development and Foundation Planning for a Wastewater Treatment Plant Expansion

    By Steven R. Ahlfield, Ali Ghandeharioon

    A wastewater treatment plant commissioned in 1978 is undergoing a major expansion. Planning various phases of the 8-hectare expansion at this site requires an understanding of the site response during

    Jan 1, 2019

  • DFI
    Evaluation Of Existing P-Y Models For Caliche Based On Numerical Analysis Of Raiders Stadium Lateral Load Tests

    By Ramin Motamed, Fahim M. Bhuiyan, Raj V. Siddharthan

    Numerical lateral load analysis based on the beam on Winkler foundation (BNWF) model (i.e., the p-y method) is a simple, and widely used tool to predict lateral responses of drilled shafts from field

    Oct 1, 2022

  • DFI
    Emergency Jacking Tunnel in Compressible Soil

    By Tai Luu, Michael McNicholas, James C. McIntyre

    The Jersey City Municipal Utilities Authority (JCMUA), discovered that an existing sewer pipe had collapsed under the New Jersey Transit Conrail Railroad between Pine Street and Ash Street in Jersey C

    Jan 1, 2019

  • DFI
    Excavation Risks Adjacent to Existing Structures in Illinois and Urban Environments - Identifying and Managing Technical and Legal Issues

    By James P. Chivilo, Gregory R. Meeder, Scott J. DiFiore, Matthew H. Johnson

    New construction in metropolitan areas has direct impacts on immediate neighbors and abutters. While noise and dust are generally nuisance concerns, demolition, vibrations, excavation, and dewatering

    Jan 1, 2019

  • DFI
    Stability Assessment of a Deadman Anchor Pile Close to the Bulkhead Wall

    By WenJun Dong

    This paper presents the stability assessment of the steel pipe piles that are used to support a deadman beam to anchor an adjacent bulkhead wall. Finite element analyses are performed to assess the st

    Sep 8, 2021

  • DFI
    Adjacent Top-Loaded Bi-Directional Test And Conventional Bidirectional Load Test Results – Site Ii

    By Patrick J. Hannigan, Seth Robertson, Rozbeh B. Moghaddam

    The Top-Loaded Bi-Directional Test (―TLBT‖) and the conventional Bi-Directional Load Test (―BDLT‖) are full-scale static load test methods. In both methods, the test loads are applied bi-directionally

    Oct 1, 2022

  • DFI
    Sustainability and Consideration of the Re-Use of Foundations for the Hurricane Deck Bridge

    By Timothy C. Siegel, Paul J. Axtell

    The Missouri Department of Transportation (MoDOT) recently replaced the Hurricane Deck Bridge that carries Highway 5 traffic across the Osage Arm of the Lake of the Ozarks in Camden County, Missouri.

    Jan 1, 2017

  • 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
    Direct Power Compaction - a New Deep Vibro-Compaction Method for Liquefaction Mitigation of Hydraulically Placed Sand Layers in San Francisco Bay

    By Nozomu Kotake, Rakshya Shrestha, Ralph Griffin, Stefanos Papadopulos, Jeff Fippin, Sushil Kafle

    Direct Power Compaction (DPC) is a deep Vibro-compaction method used for liquefaction mitigation. In DPC, H-beams are used as vibrating rods penetrating deep into the ground, and a vibrating force is

    Sep 8, 2021

  • DFI
    Challenging Ground Conditons during Flooding Lead to Innovative Deep Foundation Design Process and Load Test Evaluation

    By Glen M. Bellew, James F. Mehnert

    "The Kansas City District-United States Army Corps of Engineers has completed the design modification of a pile supported floodwall located along the Missouri River in Kansas City, Kansas. This deep f

    Jan 1, 2016

  • DFI
    Effects of Installation Parameters of Drilled Displacement Piles on In Situ Stress Conditions in Stiff Clays

    By Alexander Scheuermann, Martin D. Larisch, David J. Williams

    "Drilled displacement piles (DDP) have been used around the world for decades as foundation elements for structures and embankments. Typically the pile toes are designed to penetrate into stiff or den

    Jan 1, 1900

  • DFI
    Emergency Stabilization to Maintain CN Rail Service

    By Rick Deschamps

    "Fountain Slide is located approximately 10 mi (16 km) northeast of Lillooet, British Columbia, Canada, within the Coastal Mountain Range, and has been locally active since the 1970s. The project site

    Jan 1, 2017

  • DFI
    CFA Secant Piling In California

    By Philip Derbyshire, Dale J. Scheffler

    "Continuous Flight Auger (CFA) piling is a variation of Augered Cast-In-Place (ACIP) or augercast piling. In both cases a continuous auger with a hollow stem is used to drill a hole and a pile is form

    Jan 1, 2005

  • DFI
    Deep-Sea Quay Wall for Offshore Wind Energy Terminal on Maasvlakte 2 Rotterdam – NL

    By Patrick van der Schaaf

    "During 2016, foundation piling works were completed to allow for the construction of a production and storage/handling terminal in Rotterdam. It is there that steel foundations will be produced for o

    Jan 1, 1900

  • DFI
    London One New Change - Energy Piles® And Open Loop Wells Used For Ground Source Heating And Cooling

    By Peter Smith

    One New Change is a landmark retail / commercial development in the City of London. Integral to the structure is the three double storey basement from which the building is serviced. The building cons

    Jan 1, 2010

  • DFI
    Soil Improvement Through Rammed Aggregate Piers To Mitigate Liquefaction Risk In Storage Tanks

    By Francisco A. Flores, José L. Aguirre, Héctor A. de la Fuente, Erika Bernal, Jorge Arroyo-Esquedla

    This paper presents the analysis, design, and construction of soil improvement for storage tanks foundation support at a site in Tabasco, Mexico. A total of 980 Rammed Aggregate Piers of 12.5 m in len

    Oct 1, 2022

  • DFI
    Large Diameter Shafts - Youghiogheny Reservoir Bridge (bd308ba5-80e5-464e-8005-1856048b892f)

    By Paul J. Lewis

    Estimation of the axial side shear resistance of drilled shaft rock sockets is directly related to the unconfined compressive strength of the bedrock. Commonly, the mean unconfined compressive strengt

    Jan 1, 2013