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Compressive Behaviour of Hollow Core Micropiles in Cohesive Soil
By M. Hesham El Naggar, Osama F. E. Drbe
"Abstract: The use of micropiles has greatly increased the last twenty years, including applications involving low capacity micropile networks, seismic retrofitting, underpinning of existing foundatio
Jan 1, 2014
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Displacement And Pore Pressure Monitoring During Installation Of Drilled Displacement Piles
By Lisa M. Splitter
Drilled displacement piles were constructed as the foundation for a proposed 10-story building in San Francisco, California. At the study location, the stratigraphy consists of 14 to 21 feet of fill
Jan 1, 2009
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Innovative Cofferdams Used On The I-205 Columbia River Bridge
By Robert Bittner
The following is a report on the development of two unique and separate cofferdam systems used in the construction of the marine foundations for the I-205 Columbia River Bridge at Portland, Oregon for
Jan 1, 2013
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Evaluating Efficiency of Geo5 in the Analysis of Pile Foundation
By Elizabeth Varghese, Sanket Rawat, Prachuryya Kaushik, Ravi Kant Mittal
"Geo5 Software is gaining popularity worldwide due to its expediency in analysis and design of pile foundation. The analysis is based on various theoretical, empirical and semi-empirical methods avail
Jan 1, 2017
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Development of Site-Specific Acceleration Response Spectra fora Liquefiable Bridge Site
By S. Ali Bastani, Ashley Varni
Design acceleration response spectra (ARS) are directly correlated with dynamic forces and estimated dynamic bridge displacements, which make them a critical aspect of dynamic bridge design. Nonlinear
Jan 1, 2018
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Structure Support on Laterally Swept Piles
By Morgan L. Race, Matthew R. Glisson
"Most driven pile projects have plumbness limits from 0.25 in/ft (21 mm/m) to 0.5 in/ft (42 mm/m) to control bending stresses. For two projects, the project teams performed static load testing to eval
Jan 1, 2017
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Double Rotary CFA Piles: Performance In Cohesive Soils
By Michel Bustamante
The occasional substandard performances of continuous flight auger in particular soil conditions have prompted the drilling rig manufacturer to improve the standard CFA in order to reduce its negative
Jan 1, 2002
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Deep Diaphragm Wall Activities At Randstadrail Project In Rotterdam, The Netherlands
By Klaus Pöllath
The Netherlands RandstadRail project makes use of a large range of sophisticated geotechnical techniques to allow a shield driven tunnel to approach the central station of Rotterdam. This paper descri
Jan 1, 2006
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Enhancements To The FHWA Deep Foundation Load Test Database
By Carl D. Ealy
Work is being done to web enable the FHWA Deep foundation Load Test Database. Originally designed to function in the client server environment via modem, access to the database both for data maintenan
Jan 1, 2002
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111,000m Of Continuous Flight Auger Piling For LNG Tank Bases In Poor Alluvial Soils, Isle Of Grain, UK
By Shane Baker
Cementation Foundations Skanska Ltd encountered many significant challenges in designing and constructing the foundations for the LNG (Liquefied Natural Gas) tanks and associated structures at the Isl
Jan 1, 2006
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Design Approaches for Externally Supported Earth Retaining Systems – Details and Limitations
By Matteo Montesi
Deep foundation elements are often used as discrete elements in externally supported earth retaining structures such as soldier piles and lagging walls, secant/tangent pile walls, anchored walls, etc.
Jan 1, 2018
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Augered Cast-In-Place Piles - Friday, May 5, 2006 - Title ? Table Of Contents - A Historical Perspective On Current Cast-In-Place Piling Practice
By Willie M. NeSmith
Cast-in-place piling are a staple of the deep foundation industry, and are used (in various forms) worldwide. In assessing the application of cast-in-place piles, it is of value to reflect on the dev
Jan 1, 2006
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Modulus of Elasticity in Deep Bored Piles
By Carlos Lam, Joram M. Amir, Erez I. Amir
"Abstract The modulus of elasticity of pile material (E) is an important parameter for the interpretation of both static and dynamic loading tests on piles. This value is commonly assumed to be consta
Jan 1, 2014
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Sand Compaction Piles ? Synopsis
By A. Holeyman
The displacement compaction piles described in the paper are installed using a heavy casing or tube and an internal drop hammer. The casing which initially is closed at the bottom by a sand plug displ
Jan 1, 2010
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Micropile And Soil Nail Load Transfer Rates In The Puget Sound Region Of Washington State
By Carole L. B. Mitchell
The increased use of micropiles and soil nailing presents a growing database of verification and sacrificial load test data. In Washington State, the use of micropiles is becoming common, and soil na
Jan 1, 2006
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Challenges And Uncertainties Relating To Open Caissons
By Fathi Abdrabbo
Open caissons are used for many geotechnical engineering applications. Open caissons may be used as deep foundation elements bypassing weak soils to tip in firm deeper strata, and in rivers and mariti
Jan 1, 2012
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The Seven Steps To Foundation Retrofit
By Javier Rodriguez
Adaptive re-use of existing structures in urban environments has become very common due to lack of available space in our cities and requirements for increased structural capacity. Often, it involves
Jan 1, 2006
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Lateral Load Capacity of Helical Piles in Sand
By Balu E. George, Subhadeep Banerjee, Shailesh R. Gandhi
"A three-dimensional analysis of laterally loaded helical piles installed in cohesionless soil is presented. Finite Element Analysis was conducted using commercially available Plaxis 3D AE version, as
Jan 1, 2017
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Jet Grouting And Safety Of Tuttle Creek Dam
By Timothy D. Stark
Jet grouting has increasingly become a ground improvement technology used to address seepage concerns and provide strength improvement to soils underlying dams. The technique of jet grouting uses high
Jan 1, 2012