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  • DFI
    Analysis and Case Study for Minimizing Differential Settlements in Piled Raft Foundations

    By Yu Chuang, Zai Jinmin, Liu Songyu

    "The piled raft foundation is a geotechnical composite construction method, consisting of three elements, piles, raft and soils, which is applied for the foundation in an increasing number. Differenti

    Jan 1, 2005

  • 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
    Sloping Rubble Marine Seawalls Founded on Soft Soil Improved by Stone Columns

    By Eleonora Di Mario, Colin B. Turnbull, Matthew G. Mills, Chengbin Miao, Wilhelm S. Degen

    "In the past decade, the ‘zero-dredge’ philosophy has become the preferred option for the formation of marine seawalls and reclamations, compared to the partially or fully dredged options, as this sol

    Jan 1, 2017

  • DFI
    Principles and Soil Mixing Examples of Portland Cement-Based Solidification/Stabilization Treatment

    By Charles M. Wilk

    "Solidification/stabilization (S/S) treatment is used to treat hazardous wastes for disposal and in the remediation/site restoration of contaminated land . SIS is also an increasingly popular technolo

    Jan 1, 2005

  • DFI
    Design Of Ground Improvement By Inclined Dsm Columns For Railway Embankment (Türkiye)

    By Emre Turk, Suat Gullu, Candan Gokceoglu, Ahmet Sirri, Asli Can

    In this study, the ground improvement application applied under the live railway bridge's approach embankments in Sivas, Türkiye was investigated as a case study. The soil profile is mainly composed o

    Oct 1, 2022

  • DFI
    Vertical Load Test on a Drilled Shaft Installed in Glacially Derived Sediments

    By Robert C. Simpson, Ghada S. Ellithy

    "There are several methods for estimating the axial capacity of drilled shafts installed in coarse-grained soils. Most methods estimate the ultimate capacity for side friction and tip resistance. Desi

    Jan 1, 2015

  • DFI
    Lateral Stresses On Multilevel Tieback Walls

    By Liiban A. Affi

    The most difficult task of designing multilevel tieback walls for deep excavation support is the determination of lateral stresses. These lateral stresses act not only on the shored height, but also

    Jan 1, 2010

  • DFI
    Soil Mixing for the LPV-111 Levee Improvements, New Orleans: A Case History

    By Filippo Maria Leoni, George Filz, Wesley Schmutzler, Matteo Bertoni

    "The US Army Corps of Engineers selected the Deep Mixing Method (DMM) for the required stabilization at the LPV 111 Project (New Orleans, USA). DMM was used for ground improvement/foundation strengthe

    Jan 1, 2015

  • DFI
    Solving Variable Bedrock Challenges With Ductile Iron Piles

    By Kevin R. Johnson, Matt Caskey, Bryan Plaskett

    Working in urban environments presents unique logistical challenges beyond those typically associated with traditional geotechnical design and construction. These challenges can include constrained si

    Oct 1, 2022

  • DFI
    Cement Deep Soil Mixing Shear Wall Stabilization Calaveras Dam Replacement Project, California

    By Michael Forrest, John Roadifer, Glen Gorski

    "The Calaveras Dam Replacement Project (CDRP) requires large disposal sites to store excess excavated materials that could not be utilized for dam construction. Because of access restrictions during d

    Jan 1, 2015

  • DFI
    Acrylamide Grouting: Successfully Controlling Groundwater from Canada to South America

    By Daniel Magill, Jim Gentry

    "Acrylamide chemical grout (C3H2NO) has been successfully used for over 50 years to control groundwater and stop infiltration. This paper will address three unique projects involving the control of gr

    Jan 1, 2017

  • DFI
    Marine Foundation Retrofi t for the Richmond - San Rafael Bridge

    By Patrick E. Durnal, Henrik Dahl

    "A joint venture of Ben C. Gerwick Inc., Sverdrup (now Jacobs) and DMJM (now DMJM + Harris) designed the $779 million seismic upgrade of the Richmond - San Rafael Bridge over the San Pablo Bay in the

    Jan 1, 2007

  • DFI
    Gowanus Pumping Station; Jet Grout Bottom Seal and Deep Support Columns

    By Paul C. Schmall, Kevin Clarke, Paul J. Lewis, John M. Stanbury

    "The $200M rehabilitation of the more than 100-year-old Gowanus Flushing Tunnel and pumping station located on the Gowanus Canal in Brooklyn, NY required deep excavations in an extremely congested urb

    Jan 1, 2016

  • DFI
    Cyclic Degradation on Wind Turbine Foundations in Cohesive Soils

    By Yazen Khasawneh, Osvaldo P. M. Vitali, Mohammad Nassim

    Wind turbines are subjected to complex form of cyclic loadings with variable amplitudes and frequencies. The cyclic loading and the accumulation of plastic strains with the number of cycles will resu

    Sep 8, 2021

  • DFI
    Safety Evaluation Of Adjoining Structures In Urban Areas During Deep Excavation: A Case Study Of Nagpur Metro

    By Shreya Vivek Hokam, Dr. A. I. Dhatrak, S. W. Thakare, Dr. Vivek S. Hokam

    Construction in congested urban areas has necessitated tall and massive structures. In urban areas, it is common to construct underground structure nearby existing buildings. Selection of an appropria

    Sep 1, 2022

  • DFI
    Embodied Carbon Assessment For A Multi-Phased Development Pile Testing Strategy

    By Jack Taggart, Chris Barker

    Pile load testing strategies for large infrastructure projects and multi-phase building developments have historically justified cost and programme benefits for undertaking advance preliminary and wor

    May 1, 2022

  • DFI
    Turning the Valley of Ashes into a Tennis Haven: The Development History of the USTA Site in Queens, NY

    By Athena C. Denivo, Pablo V. Lopez, Michael McMaster, Sissy Nikolaou, Alfred H. Brand

    "The paper presents the history of development of the United States Tennis Association (USTA) site, focusing on geotechnical, geoseismic, and foundation engineering challenges associated with it. The

    Jan 1, 2016

  • 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
    Jet Grout Underpinning to Support the Waterman Hospital

    By Piotr Kozlowski, Stanley L. Worst, Matthew J. Niermann

    The Waterman Hospital in Tavares, Florida was undergoing an expansion and required a below-grade excavation immediately adjacent to the Emergency Department. This wing of the hospital was under high t

    Jan 1, 2019

  • DFI
    Field Sampling and Testing for Soil Mixing – Uses and Misuses of Different QA/QC Tests for CDSM Projects – A Contractor’s Perspective

    By A. David Miller, Chika Oya

    "Field sampling and testing are part of the Quality Assurance/Quality Control (QA/QC) requirements for all Cement Deep Soil Mixing (CDSM) Projects. Field sampling and testing are also used for determi

    Jan 1, 2017