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  • DFI
    Geophysical Methods For Site Characterization For Marine Foundations

    By Richard E. Sylwester

    Evaluating surface and subsurface conditions for marine foundations (bridges, causeways, terminals, etc.) is often done with a limited amount of data. Subsurface information for these projects is pri

    Jan 1, 2013

  • DFI
    Dynamic Analysis of a Base-Isolated Bridge, Seattle, Washington

    By Greg Nutson, Jeremy Butkovich, Bill Perkins, Hollie Ellis, Paul Bott

    "Dynamic soil-structure interaction (DSSI) analyses are becoming more common in bridge designs, especially in seismically active areas. Because of its proximity to two active fault zones, the Evergree

    Jan 1, 2017

  • DFI
    Effects of Stratigraphy on the Response of Energy Piles

    By Arash Saeidi-Rashk-Olia, Dunja Peric

    Energy piles are gaining increased popularity due to a growing demand for clean energy. To further advance the understanding of soil-structure interaction in energy piles, recently-derived analytical

    Sep 8, 2021

  • DFI
    Block 43: Diverse Technologies in Complex Site Conditions

    By John Kvinsland

    "The Block 43 Project is the future home of the Paul Allen Institute for Brain Science located just off the southern shore of Lake Union in Seattle, Wash. The South Lake Union (SLU) district experienc

    Jan 1, 2014

  • DFI
    Caisson Foundations For Mississippi River Bridges In The New Orleans Area (2e66a216-6dc8-4479-804e-25f5836f407e)

    By William B. Conway

    This paper will describe the large caisson pier foundations for four of the bridges crossing the Mississippi River in the New Orleans area; and will discuss some of the unusual problems encountered du

    May 11, 2007

  • DFI
    Open Cell Sheet Pile® Dock In Remote Alaska Provides Innovative And Cost-Effective Solution

    By Dempsey S. Thieman

    Innovative marine bulkhead design and construction techniques were used in the fast-track design and construction of a high-capacity, deep-water dock in the highly seismic region of Alaska?s Aleutian

    Jan 1, 2008

  • DFI
    Session 32 "Grout Mixtures and Materials 3"

    By Lois G. Schwarz

    I did a project (Sungai Piah) as a consultant to your firm in Malaysia, where we were faced with a similar situation as sketched out in your question. The following is what we did for the grouting of

    Feb 10, 2003

  • DFI
    Dynamic Load Testing Of Augered Cast-In-Place Piles (Rausche)

    By Frank Rausche

    The more widespread use of Augered Cast-in-Place (ACIP) Piles has generated increased demand for improved quality control measures. These deep foundation elements are often relatively long and slender

    Jan 1, 2001

  • DFI
    Building The Devil’s Playground: How a Ground Improvement Program Eliminated the Need for Pile Foundations

    By Christian B. Woods, Joe C. Drumheller

    "Kenneth A. Huber, P.E., Langan Engineering & Environmental Services, New York, New York, USAThe dream to bring New Jersey Devils hockey to the largest city in New Jersey became a reality in the summe

    Jan 1, 2015

  • DFI
    How Well Do Helical Piles Resist Earthquakes as Foundation Systems? WHERE TO GO FROM HERE?

    By Amy B. Cerato, Shawn Allred, Tatiana Vargas

    "Helical piles are deep foundation elements that resemble, and are installed like, a large steel soil screw — they have a slender steel shaft with one or more round helix bearing plates welded to the

    Jan 1, 2017

  • DFI
    Case Histories of Arch Action Low Improvement Ratio Cement Column Method (ALiCC Method)

    By Jun Ohbayashi, Yoshiyuki Yagiura, Hiroaki Miyatake, Masuo Kondoh, Naotoshi Shinkawa

    "Reducing the improvement ratio of ground improvement is an extremely efficient way to reduce the construction cost and construction period of mitigation measures for soft ground. The Arch Action Low

    Jan 1, 2015

  • DFI
    Optimization Of Drilled Shaft Design For A Highway Bridge In Arizona Using Load Test Results

    By John C. Niedzielski

    The existing US-70 Bridge over the Gila River at Bylas, Arizona is planned to be replaced due to its current poor condition. The replacement bridge is planned to be a 15-span, 1,904-foot (580 meter)

  • DFI
    Review Of Major Developments In Ground Engineering Over The Last 20 Years And Current Trends

    By David Sherwood

    The paper has been prepared as the basis for the 2008 John Mitchell Memorial Lecture. It reviews major developments in ground engineering over the last 20 years, not from the point of view of technic

    Jan 1, 2008

  • 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
    Nailed It! The Great Wall of the Chinese Embassy

    By Fred Tarquinio, Giovanni Bonita, Lars Wagner

    "A new embassy for the Peoples Republic of China is under construction in Washington, DC. The 475,000 square feet (44,125 m2) structure has five levels below ground and four above, making it the large

    Jan 1, 2007

  • DFI
    St. Croix Bridge, Minnesota: The Influence of Construction on the Axial Resistance of Drilled Shaft Foundations in Weak Sandstone

    By William G. Ryan, David S. Graham, Dan A. Brown, Rich A. Lamb, Paul J. Axtell

    "The St. Croix River Crossing project on the Minnesota-Wisconsin border has been in the process of planning and public debate for two decades, with several changes in alignment. During the course of t

    Jan 1, 2015

  • DFI
    Buckling Resistance of Steel Micropiles with Mechanical Splices

    By Fredrik Sarvell, Harald. Ihler, Veli-Matti Uotinen, Jukka Rantala

    "Many of the valid international building codes state that the lateral support provided by the soil is sufficient to prevent buckling of fully embedded piles. However, the development of small diamete

    Jan 1, 2014

  • DFI
    Designed, Load Tested, Installed, And Integrity Tested ACIP Piles At Lovers' Key Site In Southwest Florida

    By Gregory A. Stephan

    A case history of design, prediction, instrumented static load tests on probe piles, installation monitoring, and integrity testing of production piles is presented. Based upon project-specific subsoi

    Jan 1, 1999

  • DFI
    Pile Design and Construction Challenges in Partially Thawed Alaskan Soils (f9ca4371-20bf-4196-a495-4aa1bd15a8c0)

    By John D. Thornley

    Alaskan villages typically store a one-year supply of fuel to reduce significant delivery costs. Alaska Village Electric Cooperative (AVEC), an electric utility cooperative providing power to 51 Alask

    Jan 1, 2017

  • DFI
    The Emerging Technology Of EHDE As Applied To Deep Foundations

    By Jerold Bishop

    The application of the ?electro-hydrodynamic effect? (EHDE) to civil engineering has been made in the construction of drilled piles. Equipment for the commercial application of this process was devel

    Jan 1, 2007