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  • DFI
    Pile Design Using Cpt Results: The “Lpc Method”

    By Frederic A. Verheyde

    The CPT pile design method of the ‘Laboratoire des Ponts et Chaussées’ (LPC) uses the cone resistance (qc) for the design of axially loaded piles. It was originally proposed in 1982 and was revised in

    Nov 1, 2022

  • DFI
    Ground Improvement By Controlled Modulus Columns - A San Pedro Case Study

    By Sunil S. Basarkar, Vinothkumar S

    Ground Improvement Techniques serves to improve various engineering properties for supporting various foundations. These may be undertaken either by conventional or advanced methods. The Controlled Mo

    Sep 1, 2022

  • DFI
    A Decade of Experience with Drilled Foundations in Honolulu

    By James W. Niehoff

    "Prior to 2003, most high rise structures in Honolulu, Hawaii were supported on driven pile foundations, extending through shallow coral strata and bearing in competent formations at depths of 100 ft

    Jan 1, 2016

  • DFI
    Indicator Pile Program at Port of Oakland, California

    By Partha Sircar

    "For Berth 22 modifications at the Port of Oakland, nearly 600 octagonal 24-inch ‘diameter’ precast-prestressed concrete piles were driven, some piles over 160 feet long. Prior to production pile driv

    Jan 1, 2015

  • DFI
    Experimental Investigation on the Lateral Load Capacity of Monopiles in Dense Sand

    By Kenneth Gavin, Weichao Li, Paul Doherty

    "The lateral load capacity is one of the most important issues to be considered in designing piles to resist berthing loads, ship impact forces and for monopiles used in the offshore wind sector. A nu

    Jan 1, 2015

  • DFI
    The Progress Of Jet Grouting In The Last 10 Years In Japanese Market

    By H. Yoshida

    Jet grouting was first introduced in Japan in the second half of the 1960s, approaching 50 years ago. By the end of the first 40 years, jet grouting from single to triple fluid systems had become a g

    Jan 1, 2010

  • DFI
    Geo Data Integration for Offshore Wind Farm Projects

    By Paul Doherty

    The offshore wind sector is booming on a global scale, with the U.S. becoming a front runner in this highly progressive market. The Global Wind Energy Council has highlighted the exponential growth i

    Oct 1, 2022

  • DFI
    Experimental Study on Lateral Capacity of Single Pile Embedded in Cement-Treated Sand

    By Takeshi Maki, Kh. Adeel Tariq

    "The lateral resistance of the structure plays an important role during seismic event and it can be increased by using ground improvement. In this study an attempt has been made to investigate the eff

    Jan 1, 2017

  • DFI
    Commentary on the Selection, Design and Specifcation of Ground Improvement for Mitigation of Earthquake-Induced Liquefaction

    By Ground Improvement Committee

    The evaluation of earthquake-induced liquefaction has become a routine part of geotechnical engineering design. For a given project, if an analysis identifies a potential for liquefaction and the cons

    Aug 1, 2013

  • DFI
    Mixed-in-Place Cut-Off Walls Create Artificial Polders in the Netherlands

    By R. Gerritsen, Erwin de Jong, E. van der Velde, C. te Boekhorst

    "In recent years the market for Mixed-In-Place soil mix techniques in the Netherlands has been growing rapidly. Initially the technique was used to create cut-off walls near river dikes and as a vibra

    Jan 1, 2015

  • DFI
    Recovery Efforts At The World Trade Center "Bathtub"

    By George J. Tamaro

    In 1967 the Port Authority of New York and New Jersey undertook the construction of the World Trade Center (WTC) diaphragm walls, installation of the lateral support system and the excavation of the s

    Jan 1, 2002

  • DFI
    An Investigation Of Pile Foundations Installed During The Late 19th And Early 20th Century For Re-Use In Building Support

    By Scott M. Doehla

    A proposed rehabilitation of a 200,000 sf, 75-foot high steel-frame building at the former U.S. Navy Yard in Brooklyn, New York required the review of existing foundation data and an investigation of

    Jan 1, 2008

  • DFI
    Design of Pile Foundation for Tall Railway Bridges in North-East India

    By Sumantra Sengupta

    "Northeast Frontier Railway (NF Railway) intends to connect Imphal, the capital of Manipur (bordering Myanmar) with Assam by railway link. They have planned a 125km long railway line that passes throu

    Jan 1, 2015

  • DFI
    Seismic Stability Analysis of Seepage Control Measures for Levees in Central Valley, California

    By Zia Zafir

    "Levees in the central valley of California are primarily for flood control purposes and thus are subjected to infrequent hydraulic loading. The primary concern for these levees is their instability d

    Jan 1, 2016

  • DFI
    Rapid Load Testing In Germany

    By Marcel Bielefeld, Joost Bakker, Rob van Dorp

    Pile load testing can be performed by a static, rapid or high strain dynamic (generally designated as dynamic) testing method. The static load test is often considered the “gold standard” of testing w

    May 1, 2022

  • DFI
    Development of Lattice-Shaped Cement Treatment Method for Liquefaction Countermeasure

    By Seiji Mizutani, Hirofumi Taguchi, Makoto Yoshida, Hidenori Takahashi, Naotoshi Shinkawa, Kazuo Konishi, Yoshiyuki Morikawa, Masaya Kawata

    "The lattice-shaped cement treatment method has been used to improve the seismic performance of liquefied sandy soil in Japan. The efficacy of the method has been confirmed by the huge earthquake in J

    Jan 1, 2015

  • DFI
    Numerical Evaluation of Top of Rock Profile, Rock Strength and Conductivity.

    By Zhang Wengang, L. John Endicott

    The properties of many geological materials are variable. This is especially true for variations in elevation of the top of rock profile, strength of weathered rock, and conductivity of rock masses. O

    Jan 1, 2019

  • DFI
    Practical Reuse of Foundations in High Rise Construction

    By William H. Walton, Clyde N. Baker Jr., Darren S. Diehm

    "A 51-story concrete core and steel frame commercial office tower was recently constructed on the site of the former US Gypsum building in downtown Chicago, Illinois, USA The structure foundation reus

    Jan 1, 2005

  • DFI
    Nyct's 207th St Yard Floodwall

    By Christian L. Escalera

    Over seven years ago, on October 29, 2012, Superstorm Sandy pummeled the Northeast of the United States inflicting heavy damage on New York City Transit’s (NYCT) system. Since then, NYCT has been meth

  • DFI
    Performance of Open-Ended Pipe Piles in Cretaceous Soils of Baltimore

    By Sanjeev Malhotra

    "This paper presents the results of a pile installation monitoring and performance assessment program for pile foundations supporting 14 piers and 2 abutments of the 1700-ft long bridge crossing over

    Jan 1, 2005