Crossing the East River of New York in the Era of Mixed Face Tunneling

Abstract

Research Article| May 23, 2018 Crossing the East River of New York in the Era of Mixed Face Tunneling David M. Cregger David M. Cregger 1 AECOM Technology, 250 Apollo Drive, Chelmsford, MA 01824 1Corresponding author email: david.cregger@aecom.com Search for other works by this author on: GSW Google Scholar Author and Article Information David M. Cregger 1 AECOM Technology, 250 Apollo Drive, Chelmsford, MA 01824 1Corresponding author email: david.cregger@aecom.com Publisher: Association of Environmental & Engineering Geologists First Online: 30 Nov 2017 Online Issn: 1558-9161 Print Issn: 1078-7275 © 2018 Association of Environmental & Engineering Geologists Environmental & Engineering Geoscience (2018) 24 (2): 137–141. https://doi.org/10.2113/EEG-1982 Article history First Online: 30 Nov 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation David M. Cregger; Crossing the East River of New York in the Era of Mixed Face Tunneling. Environmental & Engineering Geoscience 2018;; 24 (2): 137–141. doi: https://doi.org/10.2113/EEG-1982 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyEnvironmental & Engineering Geoscience Search Advanced Search Engineering geology and case history experience have been relied upon as predictors for several historical East River tunnel crossings, as shown in Figure 1. Differing rock types were crossed, consisting of gneisses, schist, and limestone or dolomite nearly vertical in orientation and part of a complex tightly folded sequence, but deeply weathered along faults parallel to the river. Each crossing had vertical grade requirements, forcing the alignment through known geologic hazards of poor-quality rock and mixed face. The presence of decomposed and highly crushed zones at depth and glacial or man-made deposits further complicated the mixed face conditions for... You do not have access to this content, please speak to your institutional administrator if you feel you should have access.