Ground-freezing experience on the east side access Northern Boulevard crossing, New York

Schmall, Paul and Dawson, Andrew (2017) Ground-freezing experience on the east side access Northern Boulevard crossing, New York. Proceedings of the Institution of Civil Engineers - Ground Improvement, 170 (GI3). pp. 159-172. ISSN 1755-0769

[img] PDF - Repository staff only until 11 August 2018. - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (6MB)

Abstract

A brief review is given of ground freezing technology as a means of providing groundwater cut-off and temporary structural support in weak ground for transportation tunnelling and shaft-sinking operations. Then detailed coverage of a particular case history is reported in variable soils in Queens, New York. As part of the upgrading of rail access from Long Island into Manhattan, a tunnel was required that necessitated a frozen arch structure under a ‘live’ roadway and rail lines. The installation, development and performance of the frozen zone are described. At two small locations groundwater continued to flow through the line of the frozen arch, the heat in the newly arrived groundwater being greater than the capacity of the ground freezing technique to remove that heat, thereby preventing final ‘closure’ by frozen soil at those points. The remedial works to overcome these difficulties are described. Some conclusions are drawn concerning the reasons when and why these localized unfrozen ‘windows’ can be anticipated in freeze zones and about the requirements for remedial solutions.

Item Type: Article
Additional Information: Proceedings of the Institution of Civil Engineers - Ground Improvement - http://www.icevirtuallibrary.com/journal/jgrim
Keywords: Tunnels & tunnelling, Groundwater, Temporary Works
Schools/Departments: University of Nottingham, UK > Faculty of Engineering
Identification Number: 10.1680/jgrim.16.00012
Depositing User: Eprints, Support
Date Deposited: 14 Aug 2017 10:25
Last Modified: 14 Aug 2017 12:50
URI: http://eprints.nottingham.ac.uk/id/eprint/44877

Actions (Archive Staff Only)

Edit View Edit View