Foundation Design For The Burj Dubai – The World’S Tallest Building,
Coffey Geotechnics, Sydney, Australia
Foundation Design For The Burj Dubai – The World’S Tallest Building, Harry G. Poulos, Grahame Bunce
International Conference on Case Histories in Geotechnical Engineering
This paper describes the foundation design process adopted for the Burj Dubai, the world’s tallest building. The foundation system is a piled raft, founded on deep deposits of carbonate soils and rocks. The paper will outline the geotechnical investigations undertaken, the field and laboratory testing programs, and the design process, and will discuss how various design issues, including cyclic degradation of skin friction due to wind loading, were addressed. The numerical computer analysis that was adopted for the original design together with the check/calibration analyses will be outlined, and then the alternative analysis employed for the peer review process will …
The World Trade Center “Bathtub”, A Case History,
Mueser Rutledge Consulting Engineers, New York, New York
The World Trade Center “Bathtub”, A Case History, George J. Tamaro
International Conference on Case Histories in Geotechnical Engineering
In 1967 the Port Authority of New York and New Jersey (PANYNJ) undertook the construction of the World Trade Center (WTC) diaphragm (slurry) walls, installation of the lateral support system and the excavation of the site, commonly referred to as the “Bathtub”. The work took two years to complete. In 2001 the City of New York undertook the re-excavation of the site after the terrorist attacks. The recovery work took eight months to complete. When the World Trade Center Recovery Effort officially concluded on May 30, 2002, reconstruction was already underway. The Port Authority of New York and New Jersey …
Lucidpipe™ Power System,
Construction Engineering & Management, Purdue University
Lucidpipe™ Power System, Purdue Ect Team
ECT Fact Sheets Archive
In most gravity fed water transmission pipelines, it is desired to reduce excess pressure head to prevent undue strain on a pipeline and lower the incidence of leaks. Normally this is done with pressure reducing valves that essentially burn off this excess pressure as heat. The LucidPipe™ system converts it to low cost electricity thereby removing unwanted pressure and generating energy at the same time - energy that can be put used behind the grid or put back on the grid. The LucidPipe™ system extracts a small percentage of pressure head providing nearly invisible operation allowing water operators to fulfill …
The Leaning Tower Of Pisa Revisited,
Imperial College London, London, UK
The Leaning Tower Of Pisa Revisited, J. B. Burland
International Conference on Case Histories in Geotechnical Engineering
Stabilisation of the Leaning Tower of Pisa was achieved by means of an innovative method of soil extraction which induced a small reduction in inclination not visible to the casual onlooker. Its implementation has required advanced computer modelling, large-scale development trials, an exceptional level of continuous monitoring and daily communication to maintain control. Recently a number of historical examples have been found of the application of soil extraction to straightening leaning buildings – the earliest being 1832. Contemporary accounts of the work bring out interesting and important similarities and serve as reminders of the inventiveness and resourcefulness of engineers long …
Foundation Design And Performance Of The World's Tallest Building, Petronas Towers,
STS Consultants Ltd., Chicago, Illinois
Foundation Design And Performance Of The World's Tallest Building, Petronas Towers, Clyde N. Baker Jr., Elliott Drumright, Leonard M. Joseph, Ir. Tarique Azam
International Conference on Case Histories in Geotechnical Engineering
The analysis and design of foundations for the World's Tallest Building are described. The results of the exploration and in-situ testing program required to define the foundation support conditions are presented. The Towers are supported on a mat foundation on barrettes in residual soil and weathered silt stone, sandstone formation overlying karstic limestone at depths ranging from 80 to more than 200 meters. The extensive grouting program required to fill major cavities in the limestone beneath the Tower mats is described. The settlement analysis performed utilizing modulus information developed from the in-situ testing program is outlined. Barrette lengths were varied …
Case Histories Of Failure Of Deep Excavation
Examination Of Where Things Went Wrong:
Nicoll Highway Collapse, Singapore,
AECOM, Hong Kong, China
Case Histories Of Failure Of Deep Excavation. Examination Of Where Things Went Wrong: Nicoll Highway Collapse, Singapore, John Endicott
International Conference on Case Histories in Geotechnical Engineering
During the construction of Contract C824 of the Circle Line in Singapore, on 20th April 2004 an 80 m long section of excavation, 30 m deep, totally collapsed. The resulting crater was as deep as 15 metres and was more than 100 m in diameter. Six lanes of the adjacent Nicoll Highway subsided by as much as 13 m. Four construction workers were killed. Fortunately no vehicle was involved. A Committee of Inquiry was established and held hearings from August 2004 until March 2005. The findings of the Committee were published in May 2005. These identified the causes of the …
Liquefaction-Induced Damage In The
2010-2011 Christchurch (New Zealand) Earthquakes,
University of Canterbury, New Zealand
Liquefaction-Induced Damage In The2010-2011 Christchurch (New Zealand) Earthquakes, Misko Cubrinovski
International Conference on Case Histories in Geotechnical Engineering
A series of strong local earthquakes hit the city of Christchurch (New Zealand) in the period between September 2010 and December 2011. The earthquakes produced strong ground motions, and were very damaging. The magnitude 6.2 22 February 2011 earthquake was particularly devastating causing heavy damage to the city and 185 fatalities. The earthquake caused widespread and severe liquefaction over approximately one third of the city area which arguably was the most severe and extensive liquefaction in native soils on record. This paper presents an overview of the liquefaction-induced damage to the land, buildings and infrastructure caused by the 2010-2011 earthquakes.
Calculating The Radius Of The Earth Using Sunset Method: Comparison With Al-BīRūNi Method,
effat university
Calculating The Radius Of The Earth Using Sunset Method: Comparison With Al-BīRūNi Method, Jana Kamal, Tayeb Brahimi
Effat Undergraduate Research Journal
This paper attempts to compare the earth's radius calculation based on the sunset or sunrise (moonset or moonrise) with the Method developed by the scientist Al-Bīrūni. The sunset sunrise method is used to calculate the earth radius by standing in front of a flat horizontal plane. In addition, the authors have use Al-Bīrūni's rule to calculate the radius. Furthermore, the error percent of both Al-Bīrūni and the sunset sunrise method were calculated as well. The results showed that the earth actual radius is 6371 km. Eratosthenes radius which is 6366 km is the closest to the actual earth radius, then …
Tall Buildings And Their Foundations: Three Examples,
Skidmore, Owings & Merrill LLP, Chicago, IL
Tall Buildings And Their Foundations: Three Examples, William F. Baker, Christopher Brown, James J. Pawlikowski, Dane S. Rankin
International Conference on Case Histories in Geotechnical Engineering
The influence of foundations on the design and behavior of tall buildings is explored by examining two built towers: Burj Khalifa, Trump International Hotel and Tower, and the partially built Plaza Rakyat, a 77 story tower in Malaysia. The paper reviews how foundation conditions were considered in the design of the buildings, and how the foundations were anticipated to influence the behavior of the towers.
Soil And Structure Vibrations From Construction And Industrial Sources,
VIBRACONSULT, Cleveland, Ohio
Soil And Structure Vibrations From Construction And Industrial Sources, Mark R. Svinkin
International Conference on Case Histories in Geotechnical Engineering
Construction and industrial dynamic sources can produce environmental vibration problems for adjacent and remote structures. High vibrations and unacceptable dynamic settlements could disturb sensitive devices and people and even be the cause of structural damage. The dynamic sources, the geology at a site, and the condition of structures affect ground and structure vibrations. Each construction or industrial site is unique and requires consideration of specific approaches at the site for decreasing vibration effects of construction activities or industrial dynamic sources on surrounding structures. Specifications prepared for a site, calculation and prediction of expected vibrations, and monitoring and control of ground …
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