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  • DFI
    Detecting Cement Mixing Pile with Cone Penetration Test in the Reserved Hole

    By Wu Jian-tao, LI Guo-wei

    "The Cement Mixing Pile (CMP) quality assurance assessment is an important programme in evaluating the efficiency of foundation improvement. Coring is the current specified method of quality assessmen

    Jan 1, 2015

  • DFI
    Top-Loaded Bi-Directional Test and the Conventional Bi-Directional Load Test, a Direct Comparison

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

    The Top-Loaded Bi-Directional Test (“TLBT”) and the conventional Bi-Directional Load Test (“BDLT”) are full-scale load tests where loads are applied bi-directionally to the foundation element. The BDL

    Sep 8, 2021

  • DFI
    Building Risk Assessment For Urban Rail Transit Systems In India - Current Practices And Challenges

    By Manchanda H, Agarwal J.

    The construction industry has one of the largest numbers of injuries compared to other industries. Thus, reducing accidents and determining construction risks are extremely important. One of the essen

    Sep 1, 2022

  • DFI
    An Alternative Lower Carbon Footprint Foundation For A Large Oil Gas Project In Jurong Island, Singapore

    By Selvaganesh Selvaraju, Deepak Raj, Sandun N. Wimalasena

    One of the world leading oil majors is carrying out a multi-billion-dollar expansion of its integrated manufacturing complex in Jurong Island, Singapore, the global oil trading and refining hub. Soil

    May 1, 2022

  • DFI
    Risk Assessment and Quality Control on Grouted Waterretaining Layers by Observational Engineering

    By Bartho J. Admiraal

    "As part of the Schiphol-Amsterdam-Almere project, the largest aqueduct in Europe is being built in order for the A1 motorway to cross the Vecht River. The A1 consists of 12 lanes and the total width

    Jan 1, 2016

  • DFI
    Model Specification Helical Anchor Foundations Tension Applications

    "This model specification includes sample text shown in normal font with commentary in italics. The commentary is intended to highlight project-specific items the specification writer should consider

    Jan 1, 2016

  • DFI
    Case History: Drilled Shaft Foundation System in Cemented Soils, Las Vegas, Nevada

    By Rouzbeh Afsharhasani, Moses Karakouzian, Brandon Kluzniak

    "The Vegas High Roller is the centerpiece of a new development parcel adjacent to the Las Vegas Strip. At a height of 550 feet, the High Roller is currently the tallest observation wheel in the world.

    Jan 1, 2017

  • DFI
    New Insights On Detecting Flaws With Csl And Tip

    By Andrew Z. Boeckelmann, David S. Graham, Paul J. Axtell

    In the last fifteen years, several research studies have evaluated the ability to detect various types of deep foundation concrete integrity flaws with crosshole sonic logging (CSL) and thermal integr

    Oct 1, 2022

  • DFI
    Mobilizing CIDH Pile Base Resistance on the Gerald Desmond Bridge Replacement Project with Tip Grouting

    By Adam Zagorski, Rusty Lucido, Curt Scheyhing

    "The current California Department of Transportation (Caltrans) practice based on AASHTO LRFD Bridge Design Specifications is to use the O’Neill and Reese method (FHWA, 1999) for calculating the side

    Jan 1, 2017

  • DFI
    Challenges in Managing an Aging Infrastructure, Lessons Learned from a Near Miss at the Lake Manatee Dam

    By Glen R. Andersen

    "Two of the greatest challenges we face in managing our aging infrastructure are to perform accurate condition assessments and to realistically predict the risk of non-action. The aim of this paper is

    Jan 1, 2017

  • DFI
    Rock Socket Capacity Certification Using the Point Load Index Test

    By Burt G. Look, David W. Lacey

    "Certification of foundation capacity during the construction phase is often assessed by strength or weathering state descriptors based on visual observations. This case study used the Point Load Inde

    Jan 1, 1900

  • DFI
    Case Study of Deep Mix Pile Supported Diaphragm Wall for a Stilling Basin Structure in Malaysia

    By Chandrasegaran, Tamilmani

    "This paper describes a case study of a retaining wall structure using a diaphragm wall to construct a stilling basin at Tanjung Bin T4 power plant in Johor Bahru, Malaysia. The stilling basin is part

    Jan 1, 2015

  • DFI
    Meadowlands Megaproject: 9,000 Piles and Counting

    By Ronald D. Boyer

    "Early in the design stage of Meadowlands Xanadu, the client’s project director informed me that “after construction, nobody is going to come to Xanadu to see the foundations.” My response was, “Well,

    Jan 1, 2009

  • DFI
    Pile Lateral Behaviour under Full Scale Lateral Load Tests in Thick Compacted Marine Carbonate Sand Fill of an Artifical Island

    By Challa Venkata Rami Reddy, Anindya Roy, G. R. Konni

    This paper presents the results of pile lateral capacities obtained from both conventional design and fullscale pile lateral load tests. Conventional design using P-Y curve analysis is very commonly b

    Sep 8, 2021

  • DFI
    Foundation Reuse Is the Future

    By Andy Boeckmann

    Engineers and owners widely recognize the benefits of foundation reuse - cost savings, reduced construction schedules and reduced environmental impacts, among others. Yet for many projects with existi

    Jul 1, 2022

  • DFI
    Prestressed Concrete Sheet Pile Retaining Wall to Support Railroad Embankment Widening Adjacent to a Wetland

    By Abhijit R. Sheth, Craig M. Benedict, John Brun, Ara G. Mouradian

    "Amtrak recently replaced the 1907-era bascule two-track bridge over the Niantic River between East Lyme and Waterford, Connecticut. The project included new approach embankments, with approximately 2

    Jan 1, 2017

  • DFI
    Outstanding Issues In Understanding The Behaviour Of Thermally-Activated Pile Foundations

    By Teresa M. Bodas Freitas, Arianna Lupattelli, Peter J. Bourne-Webb, Diana Salciarini, Martina Zito, Donatella Sterpi

    The thermomechanical response of thermally-activated (TA) piles under monotonic thermal loads is quite well understood and the remaining uncertainties relate to the effect of long-term, cyclic loading

    May 1, 2022

  • DFI
    Case Study on the Frederick Douglass Memorial Bridge and the use of Large Diameter Open End Steel Pipe Piles, Washington, DC

    By Karl A. Higgins, Michael D. Venezia

    The South Capitol Street Corridor Project is one of the District Department of Transportation’s (DDOT) largest projects, and is currently under construction. This case study will focus on the design o

    Jan 1, 2019

  • DFI
    An Analysis of LRFD for Helical Anchors

    By Ronaldo Luna, Donald Deardorff

    "The use of load and resistance factor design (LRFD) is well documented since the 1960s for structural applications when it was first adopted into the American Concrete Institute Building Code in 1963

    Jan 1, 2009

  • DFI
    Army Corps Mega Projects Benefits From Innovative Foundations

    By Dale Berner, Michael O’Sullivan

    "This paper focuses on lessons learned from the innovative designs, in-the-wet construction methodology and modified foundation conditions, for two United States Army Corps of Engineers, USACE, Megapr

    Jan 1, 2017