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  • DFI
    Dynamic Testing For Bored Pile Bearing Capacity - Summary

    By Jörn M. Seitz

    Dynamic load testing is employed with ever increasing frequency to estimate the strength and elastic settlement behavior of piles of all types. For dynamic loading ram masses up to 20 Mg have been use

    Jan 1, 1987

  • DFI
    Experiences of High Strain Dynamics Pile Testing (HSDPT) in Accordance with EC7 in Sweden

    By Ingemar Hermansson, Thomas Bjerendal, Mattias Grävare, Carl-John Grävare

    "AbstractHigh strain dynamic pile tests (HSDPT) on driven piles have been carried out on a routine basis in Sweden for more than 30 years. The Swedish Commission on Pile research established, in the e

    Jan 1, 2014

  • 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
    Presentation #1 - Deep Foundation Inspection And Integrity Testing - Introduction - Why Use Drilled Shafts?

    By Bernard Hertlein

    ¦ Drilled shafts resist scour seismic loads better than groups of driven piles ¦ Drilled shaft construction creates less noise and vibration than driving piles ¦ Drilled shafts permit direct obser

    Jan 1, 2001

  • 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
    Effect Of Installation On Quality Of Deep Mixed Soil Cement Columns

    By Ali Porbaha

    Rapid growth in the urban development requires continuous search for innovative technologies to construct complex infrastructure systems. Deep mixing is one promising construction technology that has

    Jan 1, 2001

  • DFI
    Ground Water Control In The Urban Environment - Introduction

    By Robert G. Lenz

    Control of ground water for construction purposes is an everyday occurrence in the U.S. Thousands of pumps are in service at any given time. Most of these applications simply consist of pumping water

    Jan 1, 1988

  • DFI
    Sheetpile Wall System With Tiebacks In A Soft Clay Profile - Description - A. Alignment Description

    By Jean J. Abiassi

    The Boston Marine Industrial Park (BMIP) VENT 6 project is a cut and cover tunnel, part of the Central Artery / Tunnel (CA/T) in the city of Boston. The BMIP job will serve as the south approach t

    Jan 1, 1994

  • DFI
    Deep Soil Mixing for Contaminated Soil Remediation at a Superfund Site

    By Larry Stearns, Lori Tiefenthaler

    Remediation of contaminated soil represents a significant market for application of Deep Soil Mixing (DSM). Eighty-one percent of U.S. Environmental Protection Agency (EPA) Superfund Program’s site re

    Jan 1, 2018

  • DFI
    Application Of, And Experience With, An Electronically-Controlled Hydraulic Piling Hammer ? 1 ? Introduction

    By D. Arentsen

    Changing environmental laws, new operating requirements and the increasing accuracy with which the bearing capacity of driven piles can be calculated have all led to the development of hydraulic pilin

    Jan 1, 1987

  • DFI
    Business Benefits Of An Integrated CFA Rig Instrumentation System

    By Jason N. Scott

    CFA piling is a ?blind? construction process that relies heavily on the rig instrumentation to produce sound piles. If the data measured and recorded during construction can be made available to engi

    Jan 1, 2006

  • DFI
    A Contribution To The Behaviour Of Piled Raft Foundations

    By H. L. Jessberger

    In recent years piled raft foundations of multi-storey buildings on weak soils have generated much interest and discussion. By taking account of the effects of each component of the system - the pile

    Jan 1, 1991

  • DFI
    Settelement Of A Piled-Raft Foundation Considering Lateral Pile Resistance

    By Helen S. W. Chow

    The use of piled raft foundations for tall buildings has been increasing in this decade as it is an economical alternative to conventional piled foundations. Piled rafts are composite structures compr

    Jan 1, 2006

  • DFI
    Use Of Nondestructive Testing To Evaluate Defects In Drilled Shafts: Status Of FHWA Research - Background

    By Clyde Baker

    Drilled shafts for many situations offer an economical alternative to driven piles. The Federal Highway Administration (FHWA) has spent considerable time and money in research and developing design an

    Jan 1, 1989

  • DFI
    The Spadina Pier Cofferdam - Design, Installation & Performance

    By Jan A. Nilsen

    This paper describes a key element in the construction of a major project undertaken by Harbourfront Corporation in its efforts to rejuvenate the central Toronto waterfront. The Spadina Pier forms one

    Jan 1, 1987

  • DFI
    Effective Dewatering Is More Than A Pump In The Hole - A Presentation At The Deep Foundations Institute Annual Meeting St. Louis, Missouri, November 1980

    By William J. Rothschild

    Ground water at construction sites can be controlled by properly placed wellpoint dewatering systems. Care must be taken in planning cofferdams to have adequate space for and access to pumps, headers

    Jan 1, 1984

  • DFI
    25 Story Structure On River Flood Plain Soils Improved By Vibrocompaction And Compaction Grouting

    By Frank Callanan

    The Ameristar Casino expansion project included the design and construction of a 25-story hotel and 9-story parking structure expansion. The site is located in a floodplain on the banks of the Missour

    Jan 1, 2009

  • DFI
    Single-Head Large Diameter Hammer Drill For Bored Piling Actualizes Large Diameter Rock Drilling And Deep Underwater Drilling Operation - Synopsis

    By J. Nakayama

    Down-the-hole hammer is commonly recognized as the most powerful drilling equipment for weathered to fresh rock formation including boulders. However, its drilling diameter is restricted by reasons of

    Jan 1, 1996

  • DFI
    Increase In Shear Modulus By Soil Mix And Jet Grout Methods

    By Paul J. Axtell

    The results of in-situ geophysical cross-hole tests on improved soil by soil mixing (SM) and jet grouting (JG) are described. This testing was conducted on soil improved by SM and JG columns construc

    Jan 1, 2008

  • DFI
    Tanana River Bulkhead Expansion, Flexibility In Construction; Key To Arctic Dock Construction

    By Roy Peratrovich

    An innovative cost-saving design for a 1,100 ft bulkhead on the Tanana River at Nenana in central Alaska won Alaska Construction & Oil magazine's Construction Achievement Award. The designers uti

    Jan 1, 1985