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  • DFI
    8000 Series Piling Rig

    By Roger A. Bullivant

    The introduction of this size and type of piling rig is intended to address a multipurpose foundation activity. The 8000 denotes the size of equipment that is attached to the mast, namely 8000 Kg. Lar

    Jan 1, 1995

  • DFI
    Interface Testing For The Design Of Micropiles In Expansive Soils

    By Robert W. Schaut

    The use of micropiles is increasing for new construction and to retrofit distressed foundations in expansive soils. Typical micropiles in expansive soils have a lower section where the micropile grou

    Jan 1, 2011

  • DFI
    Basement Excavation: Cost Effective Retention System for a Multi Storeyed Structure

    By Madan Kumar Annam, Hari Krishna Y

    "Basement construction is one of the challenging geotechnical concerns in the urban environment. Several types of retention systems are practiced to support the earth which is suitable for restricted

    Jan 1, 2015

  • DFI
    Positive Cut-Off Wall in Indian Dam – A New Technique for Difficult Geology

    By Steni Stefani, Sanjay Dave

    "This paper describes an innovative method, used for the first time in India, for the construction of a 1.0metre-thick positive plastic concrete cut-off wall (CoW) at the upstream toe of the dam at th

    Jan 1, 2017

  • DFI
    Micropile Foundations For Support Of New Bridge Structures Over Abandoned Mine

    By Timothy J. Myers

    Expansion and the economic growth in the southwestern region of Missouri necessitated the expansion of State Route 249 and the construction of a new interchange to provide service to the Joplin, Misso

    Jan 1, 2009

  • DFI
    Diaphragm Walls, Recent Developments to Improve Reliability

    By A. Frits van Tol, Rodriaan Spruit, Jan H. van Dalen

    "Abstract In recent years, there have been major problems with deep excavations in urban areas supported by diaphragm walls. In some cases, like the fatal Nicoll Highway collapse in Singapore the qual

    Jan 1, 2014

  • DFI
    Soil-Cement Walls For Excavation Support

    By David S. Yang

    The Cement Deep Soil Mixing (CDSM) method introduces and mixes cementitious materials with in situ soils using hollow-stem rotating shafts equipped with a cutting tool at the tip and mixing paddles ab

    Jan 1, 2003

  • DFI
    Emplacement Techniques: Impervious And Pervious Wall Construction ? Summary

    By Fred C. Schmednecht

    For years, the strategy was to contain waste and in many applications, is still the recommended method. Recently, it has become acceptable to create filters below ground for the in-situ treatment of w

    Jan 1, 1999

  • 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
    A New Low-Cost Bi-Directional Load Test Technique for Drilled Shafts

    By Sherif Elfass, Gary Norris

    Bi-directional load testing of drilled shafts has been widely adopted as a means to evaluate their load carrying capacity. However, in order to reach failure, most of these tests are carried out on s

    Sep 8, 2021

  • DFI
    Construction of a Deep Slurry Cutoff Wall for the Sacramento River East Levee Program

    By Louay Owaidat, Daniel Jabbour, Allan Frappier, Jose Gomez, Mark Stanley, Tino Maestas

    The U.S. Army Corps of Engineers (USACE) is implementing a levee strengthening program along the Sacramento River East Levee (SREL) designed to correct 11 miles of deficient levees as identified by re

    Sep 8, 2021

  • DFI
    The Advantage Of Measurement While Drilling (Mwd) For Geotechnical Site Characterization

    By Anahita Modiriasari, Benjamin S. Rivers

    Measurement while drilling (MWD) is a subsurface exploration technique associated with real-time and continuous monitoring and recording of drilling data during the drilling process. This technique ca

    Oct 1, 2022

  • DFI
    Open Well Caissons Of A 1917 Railroad Bridge: How 19th Century Construction Can Influence 21st Century Construction (f1b0a5f2-b1b8-41d4-bbfb-fab6f395e7a0)

    By Alan D. Fisher

    Amtrak made a decision to replace an aging bascule bridge with a vertical lift bridge for their crossing of the Thames River in New London, Connecticut. The new lift bridge occupies the same alignmen

    Jan 1, 2008

  • 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
    Deep Mixing Method: A Global Perspective

    By Donald A. Bruce

    Various types of contemporary Deep Mixing Method (DMM) techniques have been used in the United States since 1986. Such techniques owe their origins to Japanese and Scandinavian developments, which beg

    Jan 1, 1998

  • DFI
    Soil Mixing for the LPV-111 Levee Improvements, New Orleans: A Case History

    By Filippo Maria Leoni, George Filz, Wesley Schmutzler, Matteo Bertoni

    "The US Army Corps of Engineers selected the Deep Mixing Method (DMM) for the required stabilization at the LPV 111 Project (New Orleans, USA). DMM was used for ground improvement/foundation strengthe

    Jan 1, 2015

  • DFI
    Case History – San Francisco 49ers NFL Stadium Pile Foundations Santa Clara, California

    By Scott A. Walker, Gabriel J. Alcantar, Brian Zuckerman, Ramin Golesorkhi

    "The stadium development consists of construction of a 68,500-seat, open-air NFL football stadium for the San Francisco 49ers. The main structure will consist of a 7-story above grade steel structure

    Jan 1, 2015

  • 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
    Installation And Performance Characteristics Of High Capacity Helical Piles In Cohesionless Soils

    By Mohammed Sakr

    The use of helical piles as a deep foundation option has considerably increased in the recent years to support a variety of loads, from small loads for several applications such as residential housing

    Jan 1, 2011

  • DFI
    Automation Of Pile Foundation Design Post-Processing To Produce Pile Plans

    By Rajasekar Subbian, Jessica Oudhof

    In the Netherlands pile foundation design is done using CPTs in accordance with EC7 national annexure. The capacity per tip level is calculated for every CPT followed by zonation to find the tip level

    May 1, 2022