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  • DFI
    Design and In-Construction Geologic Characterization of Micropiles to Support a Historic Transmission Line Upgrade in the Steep Talus and Basalt Slopes of the Columbia River Gorge

    By Brian J. Olson, Kevin Haiar

    Originally constructed between 1939 and 1941 as part of Franklin D. Roosevelt’s New Deal programs, the Bonneville to Hood River 115 kV Transmission Line required an infrastructure upgrade to remain re

    Sep 8, 2021

  • DFI
    Information Technology And Monitoring - Technologies De L'Information Et Monitoring - Innovations In Diaphragm-Wall Construction Plant

    By Maurice Guillaud

    The most striking innovations on diaphragm-wall construction plant are those associated with continuous real-time trajectory monitoring of the excavating tool (either a grab or a hydro-cutter). Th

    Jan 1, 2002

  • DFI
    Deep Drilled Shafts For The Pearl Harbor Memorial Bridge New Haven, Connecticut

    By Theodore von Rosenvinge

    Large diameter (2.4 meter) drilled shaft foundations were installed to depths of over 62 meters through soil into Arkose bedrock for Connecticut?s Pearl Harbor Memorial Bridge (I-95 over New Haven Har

    Jan 1, 2011

  • DFI
    Guidelines for Selecting Cutoff Wall Systems

    By Mary Ellen Large

    This publication of Deep Foundations Institute (DFI) is intended to provide project owners, design engineers and construction professionals with guidelines for selecting cutoff wall and barrier system

    Jan 1, 2021

  • DFI
    Liquefaction Mitigation Synthesis Report

    By Timothy C. Siegel

    This report presents the results of a synthesis on the design and analysis of ground improvement for liquefaction mitigation. The synthesis included an industry survey concerning the practice of groun

    Aug 1, 2013

  • DFI
    Deep Excavation for Loop Pit

    By Pathik Deb Mallik, Shyamal K. Mitra, Rajiv Kishore, Shuvranshu Rout, Manos De

    "This paper presents a case study on the design and construction of a deep underground pit structure constructed inside almost a century old existing plant building. The complexity and challenge for t

    Jan 1, 2015

  • DFI
    FHWA Hollow Bar Soil Nail (HBSN) Test Program, A Summary

    By Jesús E. Gómez

    Verification and production testing of soil nails requires debonding the upper section of the soil nail to isolate the portion of the soil nail intended for testing within a specific ground type. In p

    Jan 1, 2011

  • DFI
    Determination of Liquefaction in Time Domain Using Shake Table Test, Wavelet Analysis and Numerical Approach

    By Aniruddha Sengupta, Rana Chattaraj, G. R. Reddy, Raj Banerjee

    "Earthquake induced liquefaction in saturated granular soils is an important phenomenon which causes severe damage to life and property. In the present study, dynamically induced liquefaction of satur

    Jan 1, 2015

  • DFI
    Final Report – Workshop on Quality Assurance for Post-Grouted Drilled Shafts

    By Mary Ellen Bruce Large

    "In partnership with California Department of Transportation (Caltrans), Federal Highway Administration (FHWA), and with support from International Association of Foundation Drilling (ADSC), Deep Foun

    Jan 1, 2016

  • DFI
    Workshop on Quality Assurance for Post-Grouted Drilled Shafts

    By Mary Ellen Bruce Large

    "INTRODUCTIONIn partnership with California Department of Transportation (Caltrans), Federal Highway Administration (FHWA), and with support from International Association of Foundation Drilling (ADSC

    Jan 1, 2016

  • DFI
  • DFI
  • DFI
    Standard Testing Method for Deflection Characteristics of Pile Driving Cushion Material

    By David M. Rempe

    The purpose of this standard is to provide a method for testing of cushion materials that leads to uniform results when employed by various organizations and laboratories. The load-deflection charact

    Dec 1, 1984

  • DFI
    High-Capacity Helical Piles for Drill Trestle Support

    By Matt Fenwick, Douglas R. Schwarm

    Stringent underwater noise limits at the Fairview Ave. N. bridge replacement on Seattle's Lake Union required an innovative approach to supporting the 470-ft long drill trestle. Screw-in foundations

    Sep 8, 2021

  • DFI
    UB Digs Deep and Builds Over Adjacent Subway for New Medical Building Hub

    By Lisa R. Papandrea, David Chen, Walter E. Kaeck

    "Construction of the University at Buffalo’s new School of Medicine and Biomedical Sciences (UB-SMBS) required excavation in variable ground to a depth of more than 40 ft adjacent to the NFTA Metro su

    Jan 1, 2016

  • DFI
    SR167/70th Avenue East Vicinity Bridge Replacement Project

    By Reda Mikhail, M. Birkan Bayrak

    The Washington State Department of Transportation (WSDOT) State Route (SR) 167/70th Avenue East Vicinity Bridge Replacement Design-Build project is located in Fife, Washington. This $40 million projec

    Sep 8, 2021

  • DFI
    The World's Longest Directional Impact Driven Pile

    By Robert F. Stevens, Robin Givet, Kenneth Viking

    "Summary This paper describes a case of a directional pile installation conducted from an existing oil platform in the Caspian Sea, offshore Baku. Results are presented for 660 mm outer diameter (660

    Jan 1, 2014

  • DFI
    East Boston Branch Sewer Relief Project: Support Of Excavation Case Study

    By Eric P. Bregman

    As part of an on-going effort to improve water quality and reduce discharge into Boston Harbor, the Massachusetts Water Resources Authority (MWRA) East Boston Branch Sewer Relief Project was designed

  • DFI
    East Boston Branch Sewer Relief Project: Support of Excavation Case Study (FULL Project)

    By Eric P. Bregman, Franklin M. Grynkewicz, John E. Regan

    "As part of an on-going effort to improve water quality and reduce discharge into Boston Harbor, the Massachusetts Water Resources Authority (MWRA) East Boston Branch Sewer Relief Project was designed

    Jan 1, 2017

  • DFI
    Prediction of Axial Geotechnical Resistance of Base Grouted Drilled Shafts

    By Emad Farouz, Ehab S. Shatnawi

    "The increasing demand for small deformations and high-capacity drilled shafts without enlarging drilledshaft diameters has motivated the development and increasing use of a base grouting (BG) techniq

    Jan 1, 2016