02464cam a22003133u 450000100060000000300070000600500170001300600020003000700050003200800410003704000110007804100170008905000070010610000300011324501880014326400510033130000470038233600260042933700260045533800360048150000310051750801140054852012980066253400450196065300370200565300480204285600430209099900170213318065UtSlPG20260610133424.0mcr n260607r2006||||utu|||||o|||||||||||||| d aUtSlPG 7aen2iso639-1 4aTA1 aNoble, Alfred,d1844-191410aTransactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910 :bThe New York Tunnel Extension of the Pennsylvania Railroad. The East River Division. Paper No. 1152 1aSalt Lake City, UT :bProject Gutenberg,c2006 a1 online resource :bmultiple file formats atextbtxt2rdacontent acomputerbc2rdamedia aonline resourcebcr2rdacarrier aRelease date is 2006-03-28 aProduced by Juliet Sutherland, Sigal Alon and the Online Distributed Proofreading Team at http://www.pgdp.net a"Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept.…" is a scientific publication authored by Alfred Noble, who served as a past president of the American Society of Civil Engineers. This work appears to have been written in the early 20th century, capturing a significant engineering project revolving around the New York Tunnel Extension of the Pennsylvania Railroad. The likely topic of the book focuses on the civil engineering challenges and methodologies related to the construction of the East River Division of this tunnel. The publication presents a detailed account of the engineering processes involved in the construction of the New York Tunnel Extension, particularly emphasizing the geological surveys (e.g., borings) undertaken in preparation for construction. Noble describes the challenges posed by the varying sub-surface materials, such as quicksand and gravel, and discusses the engineering techniques employed, like the use of the shield method for tunneling. The text further elucidates the collaboration of various engineers, the planning of shafts, and the careful consideration of grades and safety measures, all integral to the successful execution of this ambitious civil engineering project. (This is an automatically generated summary.) nOriginal publication data not identified aCivil engineering -- Periodicals aRailroad tunnels -- Design and construction40uhttps://www.gutenberg.org/ebooks/18065 c59451d59451