Cofferdams are often employed as temporary watertight structures made of sheet piles and internally braced with steel or reinforced concrete ring beams to retain surrounding soil. For urban cofferdam excavations, soil removal is performed following a bottom-up performance and concrete shear walls and foundations are installed in rock or competent soil. The main goal of this study is to compare the observed performance of two cofferdams projects and conduct a series parametric analysis to study the effects of installation activities of steel ring beams. The first case history is the One Museum Park West (OMPW) and the second is the construction of a cofferdam of a structure projected to be the tallest building in America and the deepest basement built in the city. These two cofferdams evidence the need of a strict deformation control plan applicable to every construction stage, including those considered as ancillary.
|Advisor:||Arboleda-Monsalve, Luis G.|
|Commitee:||Star, Lisa, Terzic, Vesna|
|School:||California State University, Long Beach|
|School Location:||United States -- California|
|Source:||MAI 56/04M(E), Masters Abstracts International|
|Keywords:||Case studies, Excavation, Reinforced concrete, Steel ring beams, Temperature effects, Urban cofferdam|
Copyright in each Dissertation and Thesis is retained by the author. All Rights Reserved
The supplemental file or files you are about to download were provided to ProQuest by the author as part of a
dissertation or thesis. The supplemental files are provided "AS IS" without warranty. ProQuest is not responsible for the
content, format or impact on the supplemental file(s) on our system. in some cases, the file type may be unknown or
may be a .exe file. We recommend caution as you open such files.
Copyright of the original materials contained in the supplemental file is retained by the author and your access to the
supplemental files is subject to the ProQuest Terms and Conditions of use.
Depending on the size of the file(s) you are downloading, the system may take some time to download them. Please be