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  • DFI
    What Has Been Learned About Drilled Shafts From The Osterberg Load Test - Summary

    By Jorj O. Osterberg

    The Osterberg (O-Cell) Method makes it possible to separate the side shear resistance (skin friction) from end bearing. The O-Cell is placed on or near the bottom of a drilled shaft and after the conc

    Jan 1, 1999

  • DFI
    Deep Excavation Support – Shangri-La – Toronto

    By Brian Isherwood, Tara Brown, Paul Kreycir, Jenny Earle

    "The Shangri-La hotel and luxury condominium tower, recently opened on University Avenue in downtown Toronto, required eight levels of underground structure, four extending into the shale bedrock.Ishe

    Jan 1, 2015

  • DFI
    Tunnel Headwall Softeyes: Fiberglass Design Applications and Constructability Challenges

    By Shawna Munn, Jakub Hudler

    This paper outlines the use of tunneling headwall softeyes for transit construction projects in the Greater Toronto Area (GTA) over the past decade. Due to spatial constraints, tunnel boring machines

    Jan 1, 2018

  • DFI
    Study Of Hammer Selection For Driven Steel Pipe Pile

    By Jiwei Duan

    The energy transferred from a hammer to the pile top is considered as the effective energy in this paper. The effective energy is related to the pile dimensions, soil and pile-soil interface propertie

    Jan 1, 2006

  • DFI
    Deep Vibrocompactation By Stone Columns And Liquefaction Investigation

    By P. Ventura

    Reliability of the liquefaction analysis is based on data plotted as by piezocone, as by deep vibrocompactation monitored tests. The negative porewater pressure, re lated to hydrostatic value, recorde

    Jan 1, 1989

  • DFI
    Determination of Basal Heave Stability for Strutted Excavations Supported with Jet Grout Base Slab

    By Anthony T. C. Goh

    "For deep excavations in soft clay, it is common to use jet grouting piles (JGP) prior to excavation to minimize wall deflections and ground settlement, and to prevent basal heave instability. In this

    Jan 1, 1900

  • DFI
    Evaluation of Crane Pad Performance on Partially Improved Ground Adjacent to a Seawall

    By Paul J. Sabatini, Yazen A. Khasawneh

    "A Demag CC1800 crawler crane was partially erected on crane mats adjacent to a seawall when settlements near a corner of the crane mat area were observed to be slightly larger than previously assesse

    Jan 1, 2017

  • DFI
    Instrumentation And Interpretation ? Introduction

    By H. Mori

    The session chairman, Dr. H. Mori, welcomed the delegates to Discussion Session 8. AUTHORS PRESENTATIONS 1 . G. Price, Building Research Establishment. UK Mr. Price expanded on the content

    Jan 1, 1991

  • DFI
    List Of Delegates

    AUSTRALIA CHAPMAN Gary JOHN WAGSTAFF CONTSRUCTIONS PTY. LTD. 1 Ashgrove Crescent 4060 ASHGROVE BRISBANE HILLAR Jaaes Director J.A. HILLAR & ASSOCIATES 99 Woolwich Road WOOLWICH,

    Jan 1, 1994

  • DFI
    Approach To Reliability Based Design On Deep Mixing Improved Ground

    By Masaki Kitazume

    Deep mixing method, in-situ admixture stabilization technique, has been developed and adopted for on land and marine construction works in Japan. The geotechnical design procedure of the method has be

    Jan 1, 2004

  • DFI
    Residual Load Development Case Study In Driven Cast-In-Situ Piles

    By Packer M. L

    Residual load development in driven precast piles has been widely researched in recent decades, however, cast-in-situ piles are often falsely assumed to be unaffected by this mechanism. In contrast to

    May 1, 2022

  • DFI
    Helical Foundations And Tiebacks: Quality Control, Inspection And Performance Monitoring

    By John S. Pack

    The last 25 years have seen rapid expansion in the use of helical screw pile foundations and tiebacks for new and retrofit construction of buildings and earth retention structures. An estimated $100 m

    Jan 1, 2003

  • DFI
    Recent Advances In Soil Nailed Earth Retention

    By Tom A. Armour

    Different variations of soil nailing techniques have been used in the United States since the late 1970's. Such techniques owe their origins to French developments, which began in the early 1970&

    Jan 1, 2003

  • DFI
    Real Time Monitoring Of Utility Vaults during Reconstruction of the Elliot Bay Seawall

    By Pierre Gouvin

    "This paper discusses real time monitoring of utility vaults during the reconstruction of the Elliot Bay Seawall in Seattle. The project, undertaken because deterioration of the old wall posed increas

    Jan 1, 2017

  • DFI
    Effect Of Installation On Quality Of Deep Mixed Soil Cement Columns

    By Ali Porbaha

    Rapid growth in the urban development requires continuous search for innovative technologies to construct complex infrastructure systems. Deep mixing is one promising construction technology that has

    Jan 1, 2001

  • DFI
    Support Of Excavation System - Columbia Heights Metro Station Project - Washington, D.C. - Summary:

    By Robert W. Bergwall

    The $58,000,000.00 Columbia Heights Metro Station project (Section E3-a) forms a part of the Washington Metropolitan Area Transit Authority's (WMATA) Greenbelt Route - Green Line subway system. T

    Jan 1, 1997

  • DFI
    Proof of Bearing Capacity of Anchors on the Example of Innovative Anchor Monitoring System

    By Stephan Großwig, Karolina Nycz, Arne Kindler

    "Commonly used anchor monitoring systems are mainly based on the use of anchor force meters. However, experience shows that the reliability of the display of force meters lowers over time. Other measu

    Jan 1, 2017

  • DFI
    Effect Of Transverse Stresses On The Strength Of Steel Sheet Piling And Recommended Changes In Design Procedure

    By Richard J. Hartman

    Current design practice is to select steel sheet piling sections using sufficient section modulus and yield strength to resist the calculated bending moment. Thus, section modulus is the only property

    Jan 1, 2006

  • DFI
    Session IV - Notable International Projects - Special Foundation Technique For The Intersection Of Two Canals Near Magdeburg, Germany - Summary:

    By Wolfgang G. Brunner

    The closing of the gap in the European waterway- net is one of the big and challenging traffic projects following the German reunification. The water canals in the North German plain connect the Rhine

    Jan 1, 2000

  • DFI
    Design Of Concrete Tunnel Liners And Pipes By Ring Compression Theory ? Synopsis

    By W. Lum

    In the U.S., flexible metal pipe culverts are designed by ring compression theory because the pipes are capable of deflecting and deriving side support from surrounding ground. For economy, tunnel

    Jan 1, 2010