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  • DFI
    Construction Productivity Advancement Research Program (CPAR)

    By Jesse A. Pfeiffer

    CPAR, the Construction Productivity Advancement Research Program, is a new initiative of the Corps of Engineers to enhance U.S. construction industry productivity through the development and applicati

    Jan 1, 1989

  • DFI
    Computation Of The Load/Settlement Behaviour Of HP-Bearing Piles - 1. Introduction

    By E. E. De Beer

    This paper describes a method for the determination of the settlement of an individual H-bearing pile, based on the results of CPT-tests. As implied by the nature of the problem, no analysis perform

    Jan 1, 1987

  • DFI
    Bearing Capacity Of Piles Using Cavity Expansion Theory ? Summary

    By R. Bellotti

    The theory of cavity expansion in an infinite frictional soil mass whose strength is represented by a curved Mohr-Coulomb failure envelope has been used to predict with some confidence the cone resist

    Jan 1, 1987

  • DFI
    Foundation Retrofitting Using Micropiles - A Case History

    By Mohammad Nasim

    Vertical expansion of existing structures frequently requires foundation retrofitting to enhance the capacity of existing foundations for supporting additional loads. Owing to their small diameter, a

    Jan 1, 2008

  • DFI
    Design Strategy For Deep Slurry Stabilized Bored Piles In Compression

    By Chu E. Ho

    Field load tests on deep slurry stabilized bored piles have shown that end bearing resistance was unreliable due to soft toe conditions caused by debris accumulation at the bottom of the hole during p

    Jan 1, 2002

  • DFI
    Wanapum Dam Repaired Using Post-Tensioning Anchors

    By Rick Deschamps, Brian Barkauskas, Aled Hughes, Abigail Stein

    In central Washington, six miles south of the small town of Vantage, the flow of the Columbia River is harnessed by the Wanapum Dam which is part of the Priest Rapids Hydroelectric Project owned and o

    Jan 1, 2018

  • DFI
    Vibratory Driver/Extractors Do More Than Drive Sheet Piles - Summary

    By John L. White

    Vibratory driver/extractors do more than drive and extract sheet piles. I would say more than sixty percent (60%) of the time, vibratory pile driver/extractors are engaged in work that has nothing to

    Jan 1, 1997

  • DFI
    Installation Of Marine Pile Foundations At The Skyway Project For The San Francisco Oakland Bay Bridge (16c93b01-e1c3-48e5-bd32-54e8ea2106cb)

    By Robb L. Swenson

    Construction of foundations for the Skyway Segment of the San Francisco Oakland Bay Bridge required innovative techniques due to the mass of the structures being inserted and the unique subsurface of

    Jan 1, 2013

  • DFI
    The Silver Spring Transit Center: Design And Construction Of Drilled Shafts In An Urban Environment

    By James E. Parkes

    The Silver Spring Transit Center is a new three-level transit center that will include bus loops for County, Metro and intercity buses, parking, and retail space. It replaces an existing bus station

    Jan 1, 2011

  • DFI
    Effects Of Mineral And Polymer Slurries On Drilled Shafts - 1. Introduction - 1.1 History Of And Principles Of Mineral Slurries In Drilled Shaft Construction

    By Michael W. Neill, O&apos

    Drilling slurry has become an effective aid to the construction of drilled shafts in caving and/or waterbearing soils. Historically, drilling slurry made of bentonitic clay and water was first used in

    Jan 1, 1991

  • DFI
    Effect Of Transverse Stresses On The Strength Of Steel Sheet Piling And Recommended Changes In Design Procedure

    By Richard J. Hartman

    Current design practice is to select steel sheet piling sections using sufficient section modulus and yield strength to resist the calculated bending moment. Thus, section modulus is the only property

    Jan 1, 2006

  • DFI
    Examples Of The Use Of Temporary Works Soil Nailing In The UK And Ireland

    By Martin J. Pedley

    The use of soil nailing has grown steadily in the UK over the last 15 years and it has recently become more popular in the Republic of Ireland. This paper presents three soil nailing temporary works c

    Jan 1, 2000

  • DFI
    Numerical Modelling of a Deep Excavation Shoring for Replacement of Control Structure at a Dam

    By Lok M. Sharma, Deep K. Khatri, Bradfield. Brett

    "A shored enclosure was required to access a control structure upstream below the dam of a deep lake. The shoring involves the interaction of the structure, soil, and water and the loads imposed inclu

    Jan 1, 2017

  • DFI
    Hand-Excavated Pier Foundations For A High-Rise Hotel In The City Of Dalian, China ? Synopsis

    By A. K. C. Chan

    Recent hotel investment projects in China often involve very tight programmes for design and construction. An example given in this paper involves a 24-storey reinforced concrete hotel tower with 460

    Jan 1, 2010

  • DFI
    Static-Load Hydraulic Piledriving: An Alternative System For Noise & Vibration-Sensitive Applications ? Introduction

    By Robert A. Field

    Static-Load Piledriving systems utilize hydraulic push to advance piles into the ground. Dynamic systems (ie. hammers and vibratory equipment) utilize impact, or vibration, to advance the piles. S

    Jan 1, 1995

  • DFI
    Design And Construction Of The Rion Antirion Brdoge Foundations

    By Alain Pecker

    The choice of a design concept for a bridge foundation is guided by various factors; several of these factors are indeed of technical origin, like the environmental conditions in a broad sense, but ot

    Jan 1, 2005

  • DFI
    Vertical Earth Reinforcement Technique - Test Wall 1998 DFI Annual Conference And Meeting

    By Peter J. Nicholson

    A new method of constructing retaining walls, in-situ, prior to excavation has been developed. This "Vertical Earth Reinforcement Technique" VERT, has been demonstrated at a full scale test wall at th

    Jan 1, 1998

  • DFI
    Deep Foundations on Buildings using Driven Ductile Iron Micropiles.

    By Antonio A. Cristóvão, Alexandre Pinto

    "Abstract Deep foundations of buildings using driven ductile iron micropiles TRIM solutions, leads to recognized advantages, from technical, schedule and economic points of view. High production rate

    Jan 1, 2014

  • DFI
    Augered Cast-In-Place (ACIP) And Drilled Displacement (DD) Pile Quality Control ? Introduction

    By Rudolph P. Frizzi

    Quality control is essential for augered cast-in-place (ACIP) piles (also known as continuous flight auger (CFA) piles outside the United States) and drilled displacement (DD) piles since the pile is

    Jan 1, 2004

  • DFI
    Fundex - Deep Foundation Institute Tensile Pile Test Seminar - September 9 & 10, 1993 - Introduction

    After the Loma Prieta Earthquake, which caused major damage to viaducts in the Bay Area, the California Department of Transportation set up a test programme for foundation piles. Funderingstechnieken

    Jan 1, 1993