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  • DFI
    Broadway Viaduct Design Phase Load Test Program For Post Grouted Shafts

    By Mike Muchard

    A design phase load test program was performed at the Broadway Viaduct bridge site to evaluate load carrying capacity and constructability of post grouted drilled shafts. The program included construc

    Jan 1, 2009

  • DFI
    Arctic Emergency Operation: Deception Bay Rehabilitation

    By Jeff Starchuck, Harald Kullmann

    "In 2005, an inspection showed that the Deception Bay Wharf in the Canadian Arctic was at the end of its service life. Although Deception Bay is closed with landfast ice up to 5 ft thick, shipping ope

    Jan 1, 2009

  • DFI
    Evolving Micropiles: Optimizing Foundations For Seismic Retrofit

    By Rob Jameson

    Micropiles are ideally suited to seismic retrofit applications. Their high tensile and compressive capacity can sustain the large concentrated loads induced during seismic events. Micropiles can be

    Jan 1, 2008

  • DFI
    Large Diameter Shafts - Youghiogheny Reservoir Bridge (bd308ba5-80e5-464e-8005-1856048b892f)

    By Paul J. Lewis

    Estimation of the axial side shear resistance of drilled shaft rock sockets is directly related to the unconfined compressive strength of the bedrock. Commonly, the mean unconfined compressive strengt

    Jan 1, 2013

  • DFI
    Laboratory Mixing and Testing for Controlled Waste Disposal Site

    By Tomohiro Yamasaki

    "At the pre-construction foundations of the controlled waste disposal site built at the Port of Kinuura, the clayey soil account for the most, and with lesser amounts of sand compaction piles and sand

    Jan 1, 2015

  • DFI
    Axial Behavior Of Auger Cast Piles In Inner Coastal Plain Geology

    By Brain E. Ladd

    A load test program was performed on two auger cast piles constructed in the Inner Coastal Plain geology of North Carolina. Both test piles were installed through Coastal Plain deposits and into unde

  • DFI
    Axial Behavior of Auger Cast Piles in Inner Coastal Plain Geology (0a0de455-b1b9-4e2a-a87b-f9c3f26892a7)

    By Brian E. Ladd

    "A load test program was performed on two auger cast piles constructed in the Inner Coastal Plain geology of North Carolina. Both test piles were installed through Coastal Plain deposits and into unde

    Jan 1, 2017

  • DFI
    Performance Of Cast-In-Place Piles Installed With A Fixed Mast Drilling Platform In Claystone ? Glenrock WY

    By Brent Wilkins

    The project team was tasked with the design and installation of a deep foundation system to support an expansion to a power generating station in Glenrock WY. Cast-in-place piles installed by a fixed

    Jan 1, 2009

  • DFI
    Comprehensive QA/QC Integrity Testing Using Thermal Integrity Profiler

    By Brad W. Taylor

    "During the past several months, I have introduced to civil and structural engineers an innovative solution for the integrity testing of concrete using the Thermal Integrity Profiler (TIP) Wire Cable

    Jan 1, 2017

  • DFI
    Shoring Design of Historic LA Metro Station

    By Babak Mamaqani

    The Regional Connector Transit Corridor (RCC) is the Los Angeles Metro area's ambitious light rail project, running under the city's main thoroughfares, Flower and 2nd streets. When com- pleted, it wi

    Apr 1, 2022

  • DFI
    Cut-Off-Wall Welzow in the Lausitz, Germany, a 400 Feet (120 M) Deep Hydraulic Barrier between an Existing Lake Region and an Open Pit Coal Mine

    By Stephan Fisch, Franz-Werner Gerressen

    "The use of cut-off-walls (COW) for the open pit coal mines has been used for decades. They have been used to reduce the negative hydraulic impact to the surrounding area caused by the open pit mining

    Jan 1, 2017

  • DFI
    Design And Field Comparison Of Ground Improvement And Bored Piles For Large Diameter Steel Water Tanks

    By Vijaya Bhushan Rao, Ali Semercioglu, Jason Redgers

    Large diameter steel water tanks with high storage capacities impart heavy loads deep into the ground, generally requiring deep foundations to adequately support them. The use of ground improvement as

    Oct 1, 2022

  • DFI
    Partnering And Technical Innovation Used To Stabilize Slurry Trench Walls Under Commuter Rail Station For Boston's Big Dig

    By Paul Pedini

    The challenge of Contract C19E1 of Boston's Central Artery Project called for the construction of two roadways under the commuter rail yard at North Station. Two options were offered for the meth

    Jan 1, 2002

  • DFI
    A Case Study Of A Vibratory Pile Installation Monitoring Of A Precast Prestressed Concrete Pile

    By K. Viking

    It's well known that conventional impact hammers, usually are the method to use in order to drive precast prestressed concrete piles. However sometimes the vibratory technique might be considered

    Jan 1, 2004

  • DFI
    Lateral Stresses On Multilevel Tieback Walls

    By Liiban A. Affi

    The most difficult task of designing multilevel tieback walls for deep excavation support is the determination of lateral stresses. These lateral stresses act not only on the shored height, but also

    Jan 1, 2010

  • DFI
    Dynamic Load Testing Of Non-Uniform Piles

    By Thai Nguyen Ph. D

    Dynamic Load Test (DLT) on driven piles has been performed routinely all over the world. In several recent projects, even 100% testing has become a norm where every single pile is dynamically load tes

    Oct 1, 2022

  • DFI
    Session 14 "Deep Mixing Method III"

    By Stefan Dahlin

    The laboratory tests indicated low permeability but as I said, as a rule, the permeability in the field has been found to be higher. A high permeability has also been found when doing back calculation

    Feb 10, 2003

  • DFI
    Session 10 Deep Mixing Method I

    By Peter Cali

    There is one organization in Sweden, The Swedish Deep Stabilization Research Centre, which has been working with these questions and there is also a project, Eurosoilstab, within European Union to tak

    Feb 10, 2003

  • DFI
    Monitoring Auger Cast in Place Pile Construction and Testing in Hard Clay (c1a730a8-7e87-4cd7-85b2-336e4f7995da)

    By Onur Guvener, Kalaiarasi Vembu, C. Vipulanandan

    "Installation procedure and the quality of the material used in the construction have significant effects on the behavior of the Auger Cast in Place (ACIP) piles. In this study, Installation and curin

    Jan 1, 2017

  • DFI
    A Case Study Of Deep Shaft Excavation In River Channel Soil Deposit In Kolkata

    By Kaustuv Bhattacharya, Manish Kumar, Nirbhay Singh, Prodyot Kr. Ray, Praveen Soin

    This paper highlights salient features of an excavation 38 m (Length) by 10 m (Width) by 24 m (Depth) carried out in Central Kolkata. Secant pile wall (SPW) formed using a combination of alternating 1

    Sep 1, 2022