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  • DFI
    Guidelines For Selection Of Parameters For Design Of Caisson Foundations For Certain Conditions. - Synopsis

    By Dinesh R. Katti

    Caissons which are locally known as well foundations, which may very in diameter from 30 m to more than 30 m and in majority of the cases having depth to diameter ratio between 1 to 1.5, are normally

    Jan 1, 1996

  • DFI
    The Effects Of A Direct Electrical Current On The a Value Of Metallic Piles In Clay - Synopsis

    By Stephen T. Bloomer

    The application of a direct current electrical potential between a metallic pile and a fine grained soil results in an almost instantaneous change in the magnitude of the forces acting on the pile.

    Jan 1, 1996

  • DFI
    Compaction-Induced Lateral Earth Pressures And Vertical Shear Forces Acting On Non-Moving Retaining Walls

    By George M. Filz

    Restrained basement walls and unrestrained but massive concrete walls on rock foundations experience very small movements in response to lateral earth pressures. Such walls are often designed using at

    Jan 1, 2003

  • DFI
    LRFD For Deep Foundations: Replacing The Traditional Factor Of Safety In Design

    By Lance A. Roberts

    The Federal Highway Administration (FHWA) has mandated the use of the AASHTO Load and Resistance Factor Design (LRFD) specifications for all new federally-funded transportation infrastructure projects

    Jan 1, 2008

  • DFI
    Construction of Jacking Pits in Boston’s Central Artery/Tunnel Project

    By Arturo Ressi di Cervia

    "The Construction of the Thrust Pits for Jacking of the I-90 Tunnel for the Central Artery/Tunnel Project (Part of Contract No. C09A4) in Boston MA was nominated for DFI’s 2002 Outstanding Project Awa

    Jan 3, 2003

  • DFI
    Heating And Cooling Structures With Steel Pile Foundations Closed Loop Standing Column Well Technology

    By Paul Suver

    The closed loop standing column well (CLSCW) system uses a closed circuit of water to develop the same thermal heat exchange characteristics that are achieved from traditional open circuit standing co

  • DFI
    DFI45 Annual Conference on deep Foundations 2020

    By DFI DFI

    An Online Conference

  • DFI
    The Miniaturization Of Diaphragm Wall Technique – The Cube System

    By Leonhard Weixler, Alexander Blatt, Franz-Werner Gerressen

    Diaphragm wall technique is usually used to construct structural elements in the ground, commonly used for retention systems, permanent foundation elements or deep ground-water barriers, named Cut-Off

    Oct 1, 2022

  • DFI
    DEEP FOUNDATIONS INSTITUTE 45th ANNUAL CONFERENCE ON DEEP FOUNDATIONS

    By Sebastian Lobo-Guerrero

    Welcome to DFI45! our first on-line annual meeting. We cannot deny the severe impacts that the COVID19 pandemic is having in our industry and our lives. We extend our support to all of our members tha

    Oct 27, 2020

  • DFI
    2017 OPA WINNER - Tri-Pod Suction Buckets for Offshore Wind Turbine Foundation

    By Tae Hwan Lee, Jun-Shin Lee, Daejin Kwag, Sangchul Bang, Gerard T. Houlahan, Moo Sung Ryu

    "Geotechnical engineers have been installing innovative, permanent underwater foundation systems utilizing suction buckets for the offshore industry since the early 1980s (Senpere and Auvergne, 1982).

    Jan 1, 2017

  • DFI
    Tri-Pod Suction Buckets for Offshore Wind Turbine Foundation

    By Tae Hwan Lee, Jun-Shin Lee, Daejin Kwag, Sangchul Bang, Gerard T. Houlahan, Moo Sung Ryu

    "Geotechnical engineers have been installing innovative, permanent underwater foundation systems utilizing suction buckets for the offshore industry since the early 1980s (Senpere and Auvergne, 1982).

    Jan 1, 2017

  • DFI
    Borehole Loading Test Using A Self-Boring Instrument ? Synopsis

    By H. Mori

    This paper describes a new borehole loading test using a self-boring instrument appropriate for dense sandy soils and stiff clayey soils. The results of loading tests for the bearing strata of deep fo

    Jan 1, 2010

  • DFI
    Installation Of Augered Cast-In-Place Piles - Equipment (66bbaadf-14f6-4860-86d8-a6149d09411b)

    ? Hollow Stem Auger ? Drill Bits ? Leads/Torque Arm ? Hydraulic Gearbox ? Hydraulic Power Unit ? Grout Pump ? Crawler Crane

    Jan 1, 1998

  • DFI
    Some Experiences In Construction And Design Of Stone Column Reinforced Ground ? Synopsis

    By C. W. Sheng

    In this paper conventional construction procedure is briefly described for the installation of stone columns in soft ground in China. A viewpoint concerning the mechanism of ground improvement by use

    Jan 1, 2010

  • DFI
    Effects Of Environment On Deep Foundation Elements - Synopsis

    By Subhash B. Bhide

    Deep foundations are affected by the presence of sulphates, chlorides, organic contents and water currents present in the soil. The sulphates in soil and ground water interfere first with setting of c

    Jan 1, 1996

  • DFI
    Determination Of The Load-Displacement Characteristics Of Single Pile In Soft Soil ? Synopsis

    By Z. C. Chen

    Based on the analysis of load test data of long floating piles in soft soil regions, the expressions of load-transfer function of pile shaft and tip for soft soils are presented in this paper, and the

    Jan 1, 2010

  • DFI
    Investigation Of Bearing Behavior Of Pile Raft Foundation Using Numerical Modeling

    By A. Ghorbani

    The analysis of Combined Pile Raft Foundation (CPRF) is very complex due to involved interactions among components of CPRF system. Many researchers made efforts to develop sufficient methods including

    Jan 1, 2007

  • DFI
    Base Grouted Piles In Thanet Sands, London

    By D. E. Sherwood

    Twelve toe grouted, and eleven ungrouted piles, founded in very dense sands have been analysed to establish how toe grouting enhances pile performance. It is shown that pile stiffness is greatly incre

    Jan 1, 1989

  • DFI
    Safe Load Of A Single Pile In Earthquake Loading - Synopsis

    By Shamsher Prakash

    Estimation of vertical load carrying capacity of a single vertical pile under earthquake loading is an important task of a design engineer. Lateral vibration of vertical pile is highly influenced by t

    Jan 1, 1996

  • DFI
    Optimisation Of Pile Type To Support Major Structures Above A Deep Sand Profile - Synopsis

    By P. Davies

    The Hillside Smelter presently under construction at Richards Bay, Republic of South Africa, will be, on completion, the fifth largest aluminium smelter in the world. The site selected for this plant

    Jan 1, 1996