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  • DFI
    Construction of Deep Shafts in Soft Ground for the West Side CSO Tunnel Project, Portland, OR

    By Vince Luongo

    "INTRODUCTIONThe West Side Combined Sewer Overflow (CSO) Tunnel Project is located in Portland, Oregon and is part of the Willamette River CSO Control Project. The purpose of the West Side CSO Project

    Jan 1, 2006

  • DFI
    Numerical Modeling of Foundation Deformation Due to Fault Rupture (718b3bb2-ba73-41ae-ad4b-2a32fb89742b)

    By Orestis Zarzouras, Amalia Giannakou, Jacob Chacko

    "When designing structures in seismically active areas, foundations of critical structures are typically located away from known faults. Indeed many seismic codes prohibit construction in the immediat

    Jan 1, 2017

  • DFI
    Selection And Quality Control Of Deep Foundations At Ontario Hydro's Darlington Nuclear Generating Station - Synopsis

    By F Debidin

    The progressive rise of an H-pile during driving of an adjacent pile is described in this case history in which piles 15 to 18 m long were driven to end-bearing for the foundations for a 230 m long bu

    Jan 1, 2010

  • DFI
    Effects of Stratigraphy on the Response of Energy Piles

    By Arash Saeidi-Rashk-Olia, Dunja Peric

    Energy piles are gaining increased popularity due to a growing demand for clean energy. To further advance the understanding of soil-structure interaction in energy piles, recently-derived analytical

    Sep 8, 2021

  • DFI
    Numerical Modeling Of Foundation Deformation Due To Fault Rupture

    By Amalia Giannakou

    When designing structures in seismically active areas, foundations of critical structures are typically located away from known faults. Indeed many seismic codes prohibit construction in the immediate

  • DFI
    Construction Of A Spillwall In The Columbia River

    By Francis B. Gularte

    The Dalles Dam is located 192 miles upstream from the Columbia River?s mouth. As part of an effort to increase survival rates for young salmon migrating downstream to the Pacific Ocean, a river spillw

    Jan 1, 2010

  • DFI
    Quality Control of Pile Installation Using Digital Pile Penetration and Rebound Monitoring System

    By Hee-suk Yun, Dae-jin Hwang, Jeong-woo Seok, Myoung-mo Kim

    "In this paper, the accuracy of the data measured by a newly developed displacement measuring system, DPRMs (Digital Pile Penetration and Rebound Monitoring system) and its applicability as a quality

    Jan 1, 2005

  • DFI
    Ultimate Lateral Resistance of Piles in Cohesive Soil

    By Lassaad Hazzar

    The ultimate lateral resistance of piles in cohesive soil is studied using the well-known finite difference code, FLAC2D. The Modified Cam Clay (MCC) constitutive relation is adopted in the analyses t

    Aug 1, 2013

  • DFI
    Predicting Geotechnical Drilled Shaft Capacity: Are We Close?

    By James G. Ulinski, Sebastian Lobo-Guerrero, Vishal B. Patel

    "Recently modified design equations used in the transportation industry to calculate side friction and end bearing capacity for drilled shafts are now providing more realistic estimations of capacitie

    Jan 1, 2017

  • DFI
    Study on a Method for Determining the Proper Cover Soil Depth for Cement Ground Improvement in Cold Region

    By Masahiko Yamaki, Takahiro Yamanashi, Hijiri Hashimoto, Hirochika Hayashi

    "In this study, the authors used heat conduction analysis with the aim of quantitatively evaluating whether treating improved ground with cover soil is an effective measure for maintaining strength de

    Jan 1, 2015

  • DFI
    Session I - How Geology Has Driven Foundation Practice Worldwide - Design And Construction Constraints Imposed By Unique Geologic Conditions In New York City ? Synopsis

    By George J. Tamaro

    The design and construction of foundations in the New York City area are usually dictated by the widely varying geologic conditions encountered in the five boroughs, particularly along the spine of Ma

    Jan 1, 2000

  • DFI
    Case Histories of Arch Action Low Improvement Ratio Cement Column Method (ALiCC Method)

    By Jun Ohbayashi, Yoshiyuki Yagiura, Hiroaki Miyatake, Masuo Kondoh, Naotoshi Shinkawa

    "Reducing the improvement ratio of ground improvement is an extremely efficient way to reduce the construction cost and construction period of mitigation measures for soft ground. The Arch Action Low

    Jan 1, 2015

  • DFI
    Metro Sao Paulo, Line 5, Five Shaft Diaphragm Wall for Brooklin Station

    By Dario Libano, Franz-Werner Gerressen

    "Diaphragm walls are known as underground structural elements commonly used for retention systems and permanent foundation walls or elements. Of course they can also be used as deep groundwater barrie

    Jan 1, 2017

  • DFI
    Very Deep Foundations in Rock: The New Challenge in the Foundation Industry.

    By Paolo Cavalcoli, Federico Pagliacci

    "As opposed to the static functional recovery of existing structures, the construction of infrastructures in an urban environment, when combined with complex geological situations, often involves buil

    Jan 1, 2015

  • DFI
    Correlation between Undrained Shear Strength in Dry Deep Mixing Columns and Unimproved Soft Soil

    By Stefan Larsson, Jan Ekström, Jennie Kock-Larsen, Håkan Garin

    "This paper describes the testing procedure (or protocols) for quality control of dry deep mixing columns in a major ground improvement project carried out in Sweden. Quality control was mainly based

    Jan 1, 2015

  • DFI
    Making Foundation Design Courses More Engaging and Effective for Students

    By Evangelia Ieronymaki

    Civil engineering education relies on traditional methods of teaching, comprising mostly of deductive instruction by presenting the theory, followed by applications. This paper presents an alternative

    Jan 1, 2019

  • DFI
    A Review Low Strain Integrity Testing Practices In India And Complexities Involved In Evaluation Of Test Results

    By RavikiranVaidya, Vishal Dhamecha

    Low Strain Pile Integrity Testing has been used in India since 1990’s and several have tried to demonstrate the utility and benefits of this method. However, use of this technology was limited till 19

    Sep 1, 2022

  • DFI
    Full-Scale O-Cell Load Test for a Rotator Drilled Rock Socket at the Main Span of the New Benicia-Martinez Bridge

    By Ronnie X. Gu, Xing Zheng, Gem-Yeu Ma

    Due to implementation of the rotator construction method from which a smooth shaft was anticipated, a full-scale pile load test (Osterberg Method) was performed at Pier 14 Pile 9 of the main span of t

    Jan 1, 2005

  • 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
    Determining Length Of Pile Foundation By Analyzing Response To Lateral Hammer Impact

    By Vivek Samu, Murthy Guddati

    A new method called Effective Dispersion Analysis of Reflections (EDAR) was recently developed to effectively analyze the dispersive waves generated from lateral impact to piles. This paper presents t