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  • DFI
    Technical Note - Simplified Settlement Model For A Shallow Foundation On Composite Ground With Rigid Piles

    By Timothy C. Siegel

    A piled raft refers to a shallow foundation that is structurally connected to the piles, while composite ground refers to a soil-pile matrix where the piles are not structurally connected. The design

    Jan 1, 2011

  • DFI
    120 Years of Caisson Foundations in Chicago

    By Robert E. Schock, Eric J. Risberg

    "Less than 20,000 years ago, the last of the glaciers retreated from the Chicago region. They left behind sheets of glacial clay till underlain by dense, over-consolidated till (“hardpan”) below which

    Jan 1, 2016

  • DFI
    Simulation of Soil Plug Effects in Open Steel Pipe Piles Considering the Complex Soil-Structure-Interaction during Installation

    By Johannes Labenski, Christian Moormann, Johannes Aschrafi

    "Open steel pipe piles are used for various applications in costal engineering, port structures and increasingly important for offshore structures. During the installation of open steel pipe piles the

    Jan 1, 2017

  • DFI
    Optimization of Design of Drilled Shaft Foundations by Lateral Load Testing (94ee84ca-5eda-40d1-bba2-d7742a925002)

    By Donald R. Clark

    "Drilled shafts are being used as foundation support for parabolic solar troughs at the Genesis Solar Project being constructed near Blythe, California. Three types of drilled shaft foundations are re

    Jan 1, 2017

  • DFI
    Optimization Of Design Of Drilled Shaft Foundations By Lateral Load Testing

    By Donald R. Clark

    Drilled shafts are being used as foundation support for parabolic solar troughs at the Genesis Solar Project being constructed near Blythe, California. Three types of drilled shaft foundations are re

  • DFI
    Alternative Binder For Ground Improvement To Reduce Co2 Footprint

    By Brandon M. Robinson, Osman F. Besler, Dominik Gaechter

    The Sandbukta-Moss-Såstad (SMS) project is a part of the Intercity development project, which is part of the largest transport project in Norway, consisting of 270 km of new double-track rail. The SMS

    May 1, 2022

  • DFI
    Design and Construction of Driven H-Piles for Landslide Stabilization in Marlboro Clay

    By Charbel Khoury, Kwabena Ofori-Awuah, Kofi B. Acheampong

    "Following heavy rains in spring of 2014, Prince George’s County officials issued a mandatory evacuation for homes in the Piscataway Hills subdivision of Fort Washington, Maryland where a landslide al

    Jan 1, 2017

  • DFI
    A Case Study On Underreamed Piles ? Synopsis

    By Rajesh Minda

    160 numbers of double bulb underreamed piles were constructed based on the safe loads specified in IS code at Tripura. The pile load tests yielded a much lower capacity. A detailed investigation work

    Jan 1, 1996

  • DFI
    Designing Piles for Seismic Events

    By H G. Poulos

    "This paper sets out a simplified approach by which the practical foundation designer can undertake the relevant calculations to satisfy the requirements for deep foundation design in seismic areas. T

    Jan 1, 1900

  • DFI
    Oldie But Goldie – Bi-Directionally Tested Foundation Piles With Base Enlargement As A Smart And Economical Alternative To Conventional Piles At Geneva, Switzerland

    By Dipl. -Ing. (FH) Thomas Schmitt, Dr. Melvin England

    Foundations in Geneva are difficult and expensive due a large overlayer of clay and silt above competent bearing material in the moraine. Common foundation schemes use deep barrettes or bored piles, f

    May 1, 2022

  • DFI
    Advances in Desaturation of Sandy Soil to Mitigate the Liquefaction Hazard

    By Dhanaji S. Chavan, Thallak G. Sitharam

    "It is well known that sites comprising of saturated loose sand undergoes large deformations, due to liquefaction, during seismic shaking. To cope with this, different mitigation techniques such as vi

    Jan 1, 2017

  • DFI
    Case Study of Deep Mix Pile Supported Diaphragm Wall for a Stilling Basin Structure in Malaysia

    By Chandrasegaran, Tamilmani

    "This paper describes a case study of a retaining wall structure using a diaphragm wall to construct a stilling basin at Tanjung Bin T4 power plant in Johor Bahru, Malaysia. The stilling basin is part

    Jan 1, 2015

  • DFI
    The Importance Of Tension Softening (Of Concrete) In Modelling Of Tension Piles

    By Qingwei Joshua Ong

    Tension piles, also known as uplift or anchor piles, are necessary to resist uplift forces that might cause structural distress. In excavation projects, most uplift forces are developed because of hyd

    Nov 1, 2022

  • DFI
    Effectiveness of Head-Enlarged CDM Columns in Evaluating Settlement of Improved Grounds

    By Y. M. Ha, T. D. Nguyen, D. T. Nguyen, H. K. Choi

    Conventionally, cement deep mixing (CDM) columns are designed to have constant diameters over the improved depth as this facilitates the construction procedures. However, this design pattern may be in

    Jan 1, 2019

  • DFI
    Technical Note - Hollow Threaded Rebar For Cross Hole Sonic Logging Access Tubes Combined With Longitudinal Concrete Reinforcing In Drilled Shafts

    By Josef K. Alter

    Crosshole Sonic Logging (CSL) of drilled shafts requires 1.5-in (38-mm) or 2-in (51-mm) I.D. sonic access tubes to be installed inside the steel reinforcement cage. The sonic access tubes do not contr

    Jan 1, 2011

  • DFI
    Davison Freeway Reconstruction Utilizes Design/Build Retaining Walls

    By Thomas C. Anderson

    Thirty-four retaining walls are part of the $46 million upgrade of a 1942 depressed highway in Highland Park, Michigan near Detroit. This project will close a missing link between two newer roadways,

    Jan 1, 1999

  • DFI
    Experimental Evaluation of Building Settlements Founded on Liquefiable Soils

    By Ramin Motamed, Farshid Ghazavi, Joseph A. W. Toth

    "Post-disaster reconnaissance of areas affected by earthquakes has documented extensive damage to buildings with shallow foundations located in liquefaction-prone areas. Currently, estimation of lique

    Jan 1, 2016

  • DFI
    Seismic Analysis Of Drilled Shafts As Earth Retaining Structure Based On Site Characterization

    By Bernardo J. Jiménez Vega, Edy L. T. Montalvan

    During the last phase of the Circunvalacion Norte project in San Jose, Costa Rica, preliminary designs for an underpass structure of over 16 km (10 miles) considered drilled shafts as an earth retaini

    Oct 1, 2022

  • DFI
    Systematic Laboratory And Field Study On The Shear Resistance Of The Soil-Concrete Interface Of Diaphragm Walls And Bored Piles

    By Matthias Pulsfort, Jiarui Du, Torsten Wichtmann, Achim v. Blumenthal, Diethard König, Rowena Verst

    The influence of the interaction between support fluid and soil, e.g., filter cake formation, on the shear stress transfer in the soil-concrete interface of diaphragm walls and bored piles is still co

    May 1, 2022

  • DFI
    The Effects Of Changes In Effective Stress On A Base Grouted Pile In Sand

    By V. M. Troughton

    Large diameter bored piles with grouted bases have been adopted for the foundations of the majority of the buildings at Canary Wharf in London's Docklands, including a deep basement car park. The

    Jan 1, 1989