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  • DFI
    Innovative Integrated Jet Grout And Contiguous Cfa Piled Solution For Complex Deep Shoring Wall In Soft Soils – Retaining Structural Design And Analysis

    By W. L. Chong, Y. Zou

    There are many types of Earth Retention Systems (ERS) available in the market where more than one method can be a feasible solution for a project. This paper examines the design and construct process

    Nov 1, 2022

  • 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
    Pile-Supported Raft Foundation System

    By Emre Biringen

    Over the past decades, there has been an increasing recognition of the strategic use of pile-supported rafts in design of heavily-loaded structures to reduce total and differential settlements. Howeve

  • DFI
    Analysis Of Pile Behavior In Granular Soils Using DEM

    By Jeremy G. Kress

    We propose the discrete element method (DEM) as a complimentary alternative to analytical solutions and FEM models for the analysis of pile response. DEM is a novel approach to the engineering design

    Jan 1, 2010

  • DFI
    An Evaluation of t-z Analysis Methods

    By Kirk Ellison, Sherif Elfass, Ramin Motamed, Kevin V. Stanton

    "The determination of accurate load transfer curves are essential for estimating deep foundation loadsettlement response using t-z style analyses. While recently developed semi-empirical methods from

    Jan 1, 2017

  • DFI
    Case Study: Feather River West Levee Program Cutoff Walls

    By Kyle R. Lackner, Jared P. Williams

    "The Sutter Butte Flood Control Agency initiated the Feather River West Levee (FRWL) Program in 2010 to bring 35 miles of levee along the Feather River into compliance with applicable Federal and Stat

    Jan 1, 2016

  • DFI
    Jet Grout Underpinning of Sensitive Structures in Urban Environments

    By Alexander Ciccone, John H. Gill

    Jet grouting is a highly versatile ground modification technique that can offer significant commercial and technical advantages over traditional concrete pit underpinning applications. Despite these a

    Jan 1, 2019

  • DFI
    New Ground Freeze Method for Groundwater Cutoff below Foundation Excavations in Permeable Soils

    By Daniel W. Mageau, Larry W. Applegate, Aaron K. McCain

    "An innovative method of ground freezing was successfully tested to create a “dry” excavation condition for a new building foundation at a site in downtown, Miami, Florida. The subsurface conditions i

    Jan 1, 2015

  • DFI
    The Application of Rapid Load Testing In Singapore

    By Gilbert Chuah, Peter Middendorp, Joost Bakker, Soon-Hoe Chew

    "The Rapid Load Testing (RLT) of foundation piles has been applied worldwide since 1984. Several International and national codes are available, such as the Japanese Code of Practice (2002), ASTM D738

    Jan 1, 1900

  • DFI
    Use of Vibro-Replacement Stone Columns for Ground Improvement and Support of Mechanically Stabilized Earth (MSE) Wall

    By Pancho J. Garza, Keith H. Dahlen, Chris A. Labye

    "Design for reconstruction of the East Flagstaff traffic interchange project located in Flagstaff, Arizona posed particular challenges. The proposed design included construction of a nearly 50-foot ta

    Jan 1, 2015

  • DFI
    Unique Algorithm Which Takes into Account Source Wave Travel Paths When Estimating Absorption Values From DST Data Sets

    By Gerald Verbeek, Erick Baziw

    Dynamic soil analysis (DSA) in geotechnical practice is intimately related to the capability of measuring the necessary soil properties of shear modulus and absorption. In DSA the methods of analysis

    Jan 1, 2019

  • DFI
    Secant Pile Barrier Wall Overlap, Thickness, and Position at the U.S. Army Corps of Engineers Wolf Creek Dam, Jamestown, KY

    By Bernard B. Vannoy, Howard W. Gault, Ramesh Bobba

    "Treviicos-Soletanche Joint Venture (JV) and the US Army Corps of Engineers (USACE) have installed a 3800-foot long, 275-foot deep and minimum 2-foot wide secant pile barrier wall at Wolf Creek Dam in

    Jan 1, 2015

  • DFI
    AN EXPERIMENTAL INVESTIGATION ON THE BENEFITS OF A HYBRID PILE/FOOTING SYSTEM ON SAND

    By Mohammed Al Maadheedi

    This paper explores the capacity effects of a square steel plate welded at the ground surface on a driven open-ended steel pile (i.e. the plate would touch the ground surface after the pile achieves t

  • DFI
    A Case Study of Multichannel Analysis of Surface Waves (MASW) as a Tool to Characterize Unknown Foundations

    By Joseph T. Coe, Siavash Mahvelati, Philip Asabere

    Characterization of existing foundations remains an important issue as foundation reuse and rehabilitation continue to garner increased attention. In the case of unknown foundations, geophysical and n

    Jan 1, 2016

  • DFI
    Comparison of LRFD Resistance Factors to Tension Pile Load Tests

    By Seth H. Hamblin, John E. Regan, Dimitrios Palantzas

    "Through reliability-based calibration of larger pile load test databases, recent developments of the Load Resistance Factor Design (LRFD) methods, which include geotechnical load and resistance facto

    Jan 1, 2015

  • DFI
    An Experimental Investigation On The Benefits Of A Hybrid Pile/footing System On Sand

    By Nick Hytiris, Mohammed Al Maadheedi, Slobodan B. Mickovski

    This paper explores the capacity effects of a square steel plate welded at the ground surface on a driven open-ended steel pile (i.e. the plate would touch the ground surface after the pile achieves t

  • DFI
    Construction of Large Drilled Shafts the 2nd Annual Mike O'neill Lecture

    By Dan Brown

    Improvements in construction equipment and techniques in recent years have made possible the use of drilled shaft foundations in diameters and lengths not previously considered practical or feasible.

    May 11, 2007

  • DFI
    Unusual Geology At Brooklyn's Edge And Its Influence On Design And Installation Of Piles

    By Hiren J. Shah

    Across much of New York City, the geology of glacially deposited soils follows a common sequence. Outwash sands generally overlie varved silts and clays, which lie above a basal till deposit underlai

    Jan 1, 2008

  • DFI
    Performance Requirements For Vibrocompaction On Crushable Calcareous Sands Of The Uae And Their Verification In Comparison To Silica/Quartz Sands

    By Vijaya Bhushan Rao, Jason Redgers

    The typical Vibrocompaction projects undertaken in the UAE are on reclaimed Sands. These Sands which are predominantly the crushable, calcareous, carbonate sands found locally as opposed to the more c

    Oct 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