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  • DFI
    A 16 M Deep Basement Excavation in Kuala Lumpur Karst: Mixed Retention Solution

    By Serhat Baycan, Mikias Yohannes

    "Kuala Lumpur Karst is a complex limestone formation that is characterized by presence of cavities, solution channels, pinnacles and floaters. Basement excavations in such geological formations are us

    Jan 1, 1900

  • DFI
    Construction And Verification Of Large Bored Pile For Bridge Foundation Through Deep Weak Alluvial Soil Layers And Artesian Aquifer

    By C. Dai, S Raathiv

    The Waikato Expressway is one of the New Zealand Transport Agency’s (NZTA) seven roads of National Significance. Coffey is part of the City Edge Alliance engaged by NZTA for the Hamilton Section of th

    Nov 1, 2022

  • DFI
    Role Advanced Technology - Resolve Inherent Dichotomy In High Strain Dynamic Testing

    By Achyut Kumar Allady, Praveen Arumughan

    NCHRP Synthesis 418 (2011) entitled, “Developing Production Pile Driving Criteria from Test Pile Data” details the occurrence of dichotomy between pile Skin resistance and pile Tip resistance mobiliza

    May 1, 2022

  • DFI
    Construction Dewatering Challenges in Urban Environments

    By Rafael A. Rivera

    "Since the dawn of construction, there has been a need for excavations, which sometimes need to occur below the groundwater table. Excavations in themselves are difficult enough, with the myriad of re

    Jan 1, 2017

  • DFI
    Experiment to Determine the Influence of Groundwater Level on Grid-Form Deep Mixing Walls for Liquefaction Control

    By Tsuyoshi Honda, Kazuhiro Kaneda, Masayuki Imai, Kazuo Konishi, Kunio Higashinaka

    "In recent years, the demand for measures to control liquefaction of existing airport runways and harbor structures has increased. However, from the perspectives of constructability and cost, applicat

    Jan 1, 2015

  • DFI
    Detecting Cement Mixing Pile with Cone Penetration Test in the Reserved Hole

    By Wu Jian-tao, LI Guo-wei

    "The Cement Mixing Pile (CMP) quality assurance assessment is an important programme in evaluating the efficiency of foundation improvement. Coring is the current specified method of quality assessmen

    Jan 1, 2015

  • DFI
    "Static Load Testing" How Important Is It? ? Introduction

    By Jack Hayes

    The design and construction of deep foundations involve many uncertainties. For the designer there are uncertainties regarding soil and ground water variability, regarding sampling and lab testing, re

    Jan 1, 2000

  • DFI
    Reflections on Tremie Concreting in Deep Foundations

    By Gilbert R. Tallard

    "Pouring deep foundations by the tremie pipe method is nowadays such a common process that it has becomes an unspecified practice. Means and methods are almost entirely at the contactor’s discretion.

    Jan 1, 2017

  • DFI
    Integrity Testing Methods

    "Integrity tests refer to a variety of non-destructive tests (NDT) whose purpose is to measure or determine the quality and uniformity, and some- times dimensions, of cast-in-place concrete foundation

    Jan 1, 2004

  • DFI
    Accumulated Rotations of Bucket Foundations under Long-Term Cyclic Loads in Sandy Ground

    By Sung-Ryul Kim, Woong-Jong Park, Juhyung Lee, Si-Hoon Lee

    "A bucket foundation has been considered to be a potential foundation technology for offshore wind turbines. In this study, a series of 1-g model tests were performed to analyze the accumulated rotati

    Jan 1, 2016

  • DFI
    Fundamental Issues Of Displacement Auger Piling: The European Perspective

    By Maurice Bottiau

    When dealing with displacement auger piling, some general and fundamental issues have to be considered, irrespective of the system. More than with other pile types, the interplay between the soil cond

    Jan 1, 2003

  • DFI
    Helical Pile Foundation Solution for Landfill Redevelopment

    By Kevin Baumgartner, Steven Babcock

    A landfill in Phoenix, AZ reached capacity and was graded over in the 1970s. The property was subdivided into lots in 2007 to create a business park. However, the challenging site conditions caused by

    Sep 8, 2021

  • DFI
    Innovative Design for Retaining Structures using Combined Products

    By Clifford Taylor, Alexander Zöhrer

    "The execution of deep basement excavations under narrow conditions is one of the most challenging tasks in geotechnics. The vicinity of neighbouring buildings, roads, and underground structures such

    Jan 1, 1900

  • DFI
    Northeast Boundary Tunnel – Mount Olivet Road Drop Shaft

    By Jeremiah M. Jezerski, Russell H. Lutch

    The Mount Olivet Road Drop Shaft (MOR-DS) support of excavation (SOE) is a circular unreinforced concrete shaft with an inside diameter of a 30.5 ft (9.3 m) and depth of 120.5 ft (36.7 m), constructed

    Oct 1, 2022

  • DFI
    Selection And Design Of Continuous Flight Auger And Drilled Displacement Piles

    By Dan Brown

    This paper provides an overview of the advantages and limitations of continuous flight auger (CFA) and drilled displacement (DD) systems compared to other deep foundation systems, along with a summary

    Jan 1, 2005

  • DFI
    Lateral Load Tests on Step Tapered Bored Piles in Calcareous Sands

    By Nabil F. Ismael, Mohamed El Deeb

    "The behavior of laterally loaded step tapered bored piles in calcareous sand was examined by field tests. Lateral load tests were carried out on straight and step tapered bored piles 5.3 m long embed

    Jan 1, 2005

  • DFI
    Geo-Foundations Project Information Management Systems on a Budget

    By Jamey B. Rosen

    As Project Information Management Systems (PIMS) technologies develop, the range of projects to which one can apply these technologies grows while the cost to apply them shrinks. In recent years, tech

    Jan 1, 2019

  • DFI
    Installation and Efficiency of Common Helical Pile Couplings

    By Jason Herron, Joseph Brown

    The common couplings for joining sections of helical piles with an outside diameter of 6.625 inches and 8.625 inches are square on square, flange to flange, external pipe sleeve, internal pipe sleeve,

    Jan 1, 2019

  • DFI
    Design And Construction Of Open Cell Sheet Pile® Abutments Under An Existing Bridge

    By Dempsey S. Thieman

    The Kuparuk River Central Channel Bridge on the North Slope of Alaska provides critical access for oilfield service vehicles in the largest oilfield in the United States. The original sloped spill-th

    Jan 1, 2008

  • DFI
    Ultimate Bearing Capacity of Small-Diameter Pin-Piles and the Influence of Driving Penetration Resistance

    By Glen Mann, H. G. Vestberg, Robert D. Holtz

    "Underpinning of residential and commercial structures is often accomplished using a number of driven-in-place small diameter steel pipe piles. These piles, at least in the Seattle area, are typically

    Jan 1, 2005