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CFA Pile Design Parameters in Sand
By Stuart Coutts
"This paper presents an overview of the author’s experience related to the assessment of the base capacity of straight shafted and enlarged-base bored piles in sand. A design approach based on CPT qc
Jan 1, 1900
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Pile Load Testing in New York City
By Joel Moskowitz, Jan Cermak
"New York City has unique geologic conditions which must be considered when designing pile foundations. Where shallow foundations are not feasible, the City's subsurface conditions require a variety o
Jan 1, 2005
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Low Overhead Secant Piles Drilled From Within A Shaft
By Allen B. Stanton, Parthiv Brahmbhatt, Michael Grimm, Stanley L. Worst
Constructing a circular shaft consisting of secant piles has its own complications which make it more difficult than typical drilled shaft construction. Add to that performing under low overhead power
Oct 1, 2022
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Foundation Design And Construction Challenges For The Phoenix Sky Train Project
By John C. Niedzielski
The PHX Sky Train is a five mile long automated people mover system located at Phoenix Sky Harbor International Airport. Phase I of the PHX Sky Train includes the design and construction of 227 drill
Jan 1, 2010
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Integrity Testing of Drilled Displacement Piles at a Major Campus
By Mark D. Fuhriman, Parham Khoshkbari, Robert Fosse
Drilled displacement piles are becoming an increasingly common deep foundation choice for their relatively simple installation methods, applicability to a wide range of subsurface conditions, and vers
Sep 8, 2021
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Fundamentals First
By Jeffrey C. Schuh, Logan Bloemer, Daniel P. Dietzler
Over the past 30 years, the authors have encountered numerous projects where recognizing the geology, soil properties and groundwater conditions, and considering alternative construction techniques ha
Jan 1, 2019
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Excavation Risks Adjacent to Existing Structures in Illinois and Urban Environments - Identifying and Managing Technical and Legal Issues
By James P. Chivilo, Gregory R. Meeder, Scott J. DiFiore, Matthew H. Johnson
New construction in metropolitan areas has direct impacts on immediate neighbors and abutters. While noise and dust are generally nuisance concerns, demolition, vibrations, excavation, and dewatering
Jan 1, 2019
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Liquefaction Susceptibility Evaluation using Site-Specific Seismic Demands in the San Jose Area
By Martin Walker, Joseph Ang, Jongwon Lee, Alvin Bayudanto, Lilian Lorincz, Morteza Khorshidi, Wenyong Rong
This paper presents a case history of liquefaction susceptibility evaluation study for a major infrastructure project in the San José area. The subsurface material of the study area consists of Holoce
Sep 8, 2021
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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
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On Driven Piles In The Arabian Gulf: Imperfections, Potential Challenges, And Lessons Learned
By Waddah Akili
The demand on pile installation in the offshore of the Arabian Gulf has, over the last two decades, experienced unprecedented boom, triggered by the construction of platforms, to help facilitate the p
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Construction Of The Main Tower Pier Caissons For The Greenville Bridge In Mississippi
By F. Keith Jacobson
To be involved in the construction of a deep dredged caisson for a major bridge pier is one of the most rewarding and professionally challenging experiences one can have in the bridge construction bus
May 11, 2007
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A Novel Approach to Incorporate Shear-Moment Coupling Effects in Foundation Stiffness for Caisson Piles for Izmit Bay Bridge in Turkey
By Arash Khosravifar, Amalia Giannakou
"Nonlinear foundation springs for bridge caisson foundations show significant coupling between the shear force and bending moment. Implementing foundation stiffness matrix with coupling effects (off-d
Jan 1, 2017
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East Boston Branch Sewer Relief Project: Support Of Excavation Case Study
By Eric P. Bregman
As part of an on-going effort to improve water quality and reduce discharge into Boston Harbor, the Massachusetts Water Resources Authority (MWRA) East Boston Branch Sewer Relief Project was designed
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East Boston Branch Sewer Relief Project: Support of Excavation Case Study (FULL Project)
By Eric P. Bregman, Franklin M. Grynkewicz, John E. Regan
"As part of an on-going effort to improve water quality and reduce discharge into Boston Harbor, the Massachusetts Water Resources Authority (MWRA) East Boston Branch Sewer Relief Project was designed
Jan 1, 2017
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Strength Behavior of Soilcrete Improved by Cement and Metakaolin
By Guo Qian, Du Guangyin, Deng Yongfeng, Liu Songyu, Wang Ningping
"Metakaolin (MK) can efficiently enhance the strength and the impermeability of concretes and mortars. However, it has rarely been attempted in admixtures of cement-stabilized soils until presently. A
Jan 1, 2015
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Challenges and Lessons Learned from Shoring Design of 2nd / Broadway Metro Station
By Babak Mamaqani, Pirooz Barar
Regional Connector Transit Corridor (RCC) is part of the Los Angeles metro expansion project under construction which adds three new stations into the system. PB&A was responsible for the design of th
Jan 1, 2019
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From Linear To Circular Economy; Using Hollow Piles To Reduce Embodied Carbon And Promote Pile Reuse
By Andrew McNamara, Stuart Norman, Matthew Dearing, Michael Pelken, Asha Panchal
The deep foundations industry has largely remained unchanged since in the advent of CFA piling in the 1960s. Piles have consequently been designed and constructed following the traditional codes and s
May 1, 2022
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Piling In Calcareous Red Bed Soils and Weak Rock Formation – Design Development for a Gas Processing Facility
By Rick Piovesan, Pramod Rao, Nihal Bohra, Mark Wahler
"This paper discusses the approach followed for the geotechnical design of 355 mm and 457 mm diameter driven open-ended steel pipe piles used for a gas plant at a green field site in Pilbara region in
Jan 1, 2015
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Design Build of the New NY Bridge Foundations
By Leykam Chris J., Jacobs Scott. A.
"Construction of the New NY Bridge over the Hudson River 25 miles north of New York City is one of the largest civil infrastructure projects presently underway in the United States (formerly Tappan Ze
Jan 1, 2016
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Smart Soil Improvement: The Use of Rigid Inclusions for Soil Consolidation
By Federico Pagliacci, Claudio Asioli, Marco Chiarabelli
"""Rigid inclusions"" are a consolidation method that provides improvement of soft soils thanks to the installation of cylindrical columns made up of a material with significant and permanent cohesive
Jan 1, 2017