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  • DFI
    Double Rotary CFA Piles: Performance In Cohesive Soils

    By Michel Bustamante

    The occasional substandard performances of continuous flight auger in particular soil conditions have prompted the drilling rig manufacturer to improve the standard CFA in order to reduce its negative

    Jan 1, 2002

  • DFI
    Design Of Drilled Pier In Expansive Soils

    By G. T. Hong

    A numerical model for use in design is developed to predict the stresses and axial and bending displacements in a drilled pier in expansive soils. The prediction is based on the horizontal swelling p

    Jan 1, 2007

  • DFI
    Recommendations For Implementing And Interpreting Non­Destructive Integrity Testing Of Cast In-Situ Concrete Piles And Diaphragm Walls.

    By Jose L. Garcia

    The following document aims to cover all issues concerning the three main methods employed for the in-situ survey of concrete pile integrity. Within it are described both sonic coring and low-stra

    Jan 1, 2006

  • DFI
    Gallery Towers, Melbourne: Successful Approach To Difficult Piling Contract Management

    By Mario Aiezza

    This paper outlines the results of a relationship developed during the design and construction of the foundations for the Gallery Towers project in Melbourne. Both the builder and the piling contracto

    Jan 1, 2002

  • DFI
    Compressibility Behavior Of Tropical Peat Reinforced With Cement Column

    By Y. Duraisamy

    This paper presents the compressibility of tropical peat reinforced with cylindrical cement column. When a cement column installed vertically in peat, its compressibility was reduced because of the ha

    Jan 1, 2007

  • DFI
    Kinematic Load Tests On A Model Pile In Clay

    By Michael J. Brown

    Load testing is important for controlling the quality of piled foundations. The Statnamic test is an alternative to existing testing methods with a load duration that lies between that for static and

    Jan 1, 2002

  • DFI
    Design And Construction Of Integral Drilled Shaft - Columns For The Boscawen-Canterbury Bridge

    By Frederick C. Rhyner

    Drilled shafts have become an economical foundation choice for bridges in the northeast United States, especially when they can be constructed over water without the use of cofferdams. For the Boscaw

    Jan 1, 2004

  • DFI
    The Design And Construction Of Large Diameter Base Grouted Piles In Thanet Sand At Blackwall Yard, London

    By J. A. Yeats

    This paper describes the loading to 25MN of a 1.2m diameter bored cast-in-situ test pile founded in the Thanet Sand which was base grouted. The pile was sleeved over the major portion of its length to

    Jan 1, 1989

  • DFI
    Defective Piles In Clay - Synopsis

    By S. Narasimha Rao

    Bored cast in situ piles are highly susceptible to construction defects like necking, discontinuity in concreting, poor compaction of concrete, improper end bearing condition due to inadequate cleanin

    Jan 1, 1996

  • DFI
    Acrylamide Grouting: Successfully Controlling Groundwater From Canada To South America

    By Jom Gentry

    Acrylamide chemical grout (C3H2NO) has been successfully used for over 50 years to control groundwater and stop infiltration. This paper will address three unique projects involving the control of gr

  • DFI
    Piled Raft Design For High Rise Buildings In East London, UK

    By D. P. Nicholson

    The current phase of office development at Canary Wharf in the London Docklands includes twelve multi-storey buildings varying from eighteen to forty stories in height. The area of Canary Wharf South

    Jan 1, 2002

  • DFI
    Bore Pile Stabilization Issues in Offshore Marine Works

    By Nuno Cruz, Saúl Rodríguez

    "When executing offshore bored piles there are several specific factors and problems to consider in order to guarantee excavation stability. One of the methods employed to carry out this type of work

    Jan 1, 2017

  • DFI
    American Developments In The Use Of Small Diameter Inserts As Piles And Insitu Reinforcement

    By D. A. Bruce

    The use of small diameter cast-in-place bored piles is becoming increasingly popular in the United States. Such inserts are used as conventional load bearing piles, and are generally referred to as pi

    Jan 1, 1989

  • DFI
    A Simple Solution For Slope Stabilization Using Micropiles

    By Dan Brown

    A method is outlined for computing the contribution of a micropile group to global stability of a sliding mass. The forces in the micropile are computed in a way which accounts for the effect of soil

    Jan 1, 2007

  • DFI
    Rock Socketed Drilled Shafts in Electrical Substations

    By Brock Wallis, Steve Davidow

    The following text will present the concept of rock socketed drilled shafts used to support electrical substation structures, and discuss the cost and schedule risks that traditional design responses

    Jan 1, 2018

  • DFI
    Machine Foundation Repair

    By Scott D. Thomson

    The client for this project specializes in the use of state-of-the-art technology to fabricate and assemble composites and metal-bonded structures for commercial and military aircraft programs. One of

    Jan 1, 2003

  • DFI
    Estimation of Shaft and Base Responses from Pile Load Test

    By Vidyaranya Bandi, Madhav Madhira, Kota Vijay Kiran

    "Using hyperbolic relationships for the non-linear responses of shaft and base resistances, a method is proposed for estimating initial shaft and base stiffnesses and ultimate shaft and base resistanc

    Jan 1, 2017

  • DFI
    Impact Of Environmental Regulations On Pile Foundation Design And Construction Using Diesel Hammers

    By R. D. Short

    Environmental regulations for noise and air pollution are directly affecting the type of equipment and construction techniques being utilized for pile driving construction using diesel hammers in Cali

    Jan 1, 1989

  • DFI
    Reinforcement Project For The Shopping Centre "Grand Littoral" In Marseilles

    By J. -M. Rescoussier

    Due to Important settlements inducing major structural damages, the western part of the Grand Littoral shopping centre has been closed in 1997. The present paper describes the project of underpinnin

    Jan 1, 2002

  • DFI
    Experimental Evidences From A Pile Load Test On A Driven Composite Pile

    By A. Garassino

    A pile design was performed for a thermal power station in Egypt and more than 4000 piles were to be driven. Technical economical reasons suggested the choice of driven composite LACOR piles designe

    Jan 1, 1991