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  • DFI
    Application of Non-Destructive Testing to Drilled Shafts

    Technically speaking, the concept of NDT sounds like the "magic bullet" when faced with a questionable drilled shaft. All the Contractor or Engineer needs to do is select an NDT method, apply it, unde

    Jan 1, 2004

  • DFI
    Challenges Of Earthen Cofferdam In Deep Excavations For Waterfront Structures, A Case Study

    By Balasubramani M., Ramana P. V., Bairagi K.

    This paper is a case study of an earthen Cofferdam, constructed for a deep excavation at Intake location in river Aaundha, Maharashtra, India. A 12 m (39 ft) deep excavation was made to construct the

    Nov 1, 2022

  • DFI
    Collaborative Alliances – A Sustainable Way Forward For Construction?

    By Stefano Trevisani

    Abstract The FIEC Sustainability Vision states that “risks should be identified and allocated in a fair manner across the project team from the early stages of the design phase. A partnering approach,

    Jan 1, 2014

  • DFI
    Slurry Trench Design and Construction in Difficult Conditions

    By Peter Deming

    "PART 2 OF 2 (CONTINUED FROM SUMMER 2006 EDITION) CONSTRUCTION ISSUES (cont’d) The Influence of Ground Conditions on Collapse Sand and gravel strata provide frictional resistance to support active ear

    Jan 1, 2006

  • DFI
    Long Term Performance of Grouts and the Effects of Grout By-Products

    By Stephan A. Jefferis

    I presume that the questioner is not asking about the reduction of sulfate in groundwater to hydrogen sulfide as a result of biological activity promoted by organics in the grout hardener and that the

    Feb 10, 2003

  • DFI
    Inspection and Observation Methods

    "Full time inspection of drilled shafts by qualified personnel is a necessary part of construction. Detailed inspection procedures for routine inspection are provided in the Drilled Shaft Inspector’s

    Jan 1, 2004

  • DFI
    A Ten-Year Perspective of Jet Grouting: Advancements in Applications and Technology

    By Gary T. Brill

    In the presentation, the development and new applications of the jet grouting technique in the North America are briefly introduced at first and followed by the outline and advantages of Jet Grouting.

    Feb 10, 2003

  • DFI
    Innovative Earth Retention Project for a Parking Garage

    By Andreas Brandner, Karl Schoenherr-Strasse, I. B. Brandner, Dipl. Ing

    "A world famous Wintersport resort in the Alpine planned to build a parking garage for more than 600 cars and busses situated between a torrent, a district road and the village.A nearly 200 m long bui

    Jan 1, 2016

  • DFI
    Incorporating Site Variability into LRFD Design of Pile Foundations

    By Murad Y. Abu-Farsakh, Md Habibur Rahman

    The properties of all natural soil deposits are highly variable, and they are rarely homogeneous. Cone penetration tests (CPT) were used to assess the site variability, which was then incorporated in

    Sep 8, 2021

  • DFI
    Utilizing Drones to Improve Project Workflows

    By Barritt Lovelace

    Collins Engineers has been researching and implementing the use of drones on Civil Engineering Projects since 2015. Applications include bridge inspection, asset management, mapping, construction site

    Jan 1, 2019

  • DFI
    Performance Of Storage Tanks Supported By Shallow & Deep Foundations

    By Akhila Manne, Prasad P. V S R

    Storage tanks are heavily loaded thin-shelled structures that exert large loads on and require large foundations to support them. They are generally very sensitive to foundation settlements as it may

    Nov 1, 2022

  • DFI
    Measured And Modeled Settlements Of Power Plant On Piled Raft Foundations

    By Gianni O. Chieruzzi

    A 400 MW, gas-fed power plant on floating piles and piled raft foundations was constructed in the Province of Moskovskaya, Russia in 2008. The subsurface is characterized by fill underlain by loose t

  • DFI
    Measured and Modeled Settlements of Power Plant on Piled Raft Foundations (2734870e-dd47-46f3-a815-25575798a774)

    By Alireza Ayoubian, Douglas S. Roy, Gianni O. Chieruzzi

    "A 400 MW, gas-fed power plant on floating piles and piled raft foundations was constructed in the Province of Moskovskaya, Russia in 2008. The subsurface is characterized by fill underlain by loose t

    Jan 1, 2017

  • DFI
    Slurry Trench Design and Construction in Difficult Conditions (5812dfc0-6c6e-4d3d-988d-069d8f606655)

    By Peter Deming

    "PART 1 OF 2INTRODUCTIONSlurry trenches are the least cost hydraulic barrier available, if the excavated spoils can be recycled into backfill. As such, slurry trenches are constructed where possible,

    Jan 1, 2006

  • DFI
    Sonic Drilling and Sensitive Infrastructure

    By George Burnhart

    "Sonic drilling is a relatively new technology even though it has been in development since the late 1940s. It was initially funded by the U.S. petroleum industry and then, in the late 40s, Russian sc

    Jan 1, 2008

  • DFI
    Session 24 "Compaction Grouting and Consensus Guide"

    By Richard Berry

    The spacing of grout injections is typically about 2 to 2 V½ meters if the purpose of the grouting is densification of the in-situ soils. Hole spacing will vary with the in-situ soil properties and th

    Feb 10, 2003

  • DFI
    Gowanus Pumping Station; Jet Grout Bottom Seal and Deep Support Columns

    By Paul C. Schmall, Kevin Clarke, Paul J. Lewis, John M. Stanbury

    "The $200M rehabilitation of the more than 100-year-old Gowanus Flushing Tunnel and pumping station located on the Gowanus Canal in Brooklyn, NY required deep excavations in an extremely congested urb

    Jan 1, 2016

  • DFI
    Caveat Emptor Or A Buyer's Guide To Pile Integrity Testing - Introduction

    By Joram M. Amir

    During recent years, the integrity testing of piles has made considerable progress. With the availability of portable and powerful computers, practically all integrity testing equipment is now digital

    Jan 1, 1999

  • DFI
    Underpinning and Temporary Earth Retention for the ReTRAC Trench in Reno

    By K. Ronald Chapman, Claus Ludwig, Doug Jenevein

    "In the spring of 2005 Schnabel Foundation Company completed a $15.2 million Design/Build subcontract to underpin 11 structures, and provide 202,800 square feet of earth retention for the Reno Transpo

    Jan 1, 2006

  • 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