Grout Supports Brooklyn Tunneling

by Alfred Brand, Sr. Assoc.; Mueser, Rutledge, Consulting Engineers, 708 3rd Ave., New York, NY 10017,
William Clarke, Pres.; Geochemical Corp., 162 Spencer Place, Ridgewood, NJ 07450,
Paul Blakita, Engr.; GKN Hayward Baker, Inc., 1875 Mayfield Rd., Odenton, MD 21113,


Serial Information: Civil Engineering—ASCE, 1988, Vol. 58, Issue 1, Pg. 43-45


Document Type: Feature article

Abstract:

At the Red Hook project in Brooklyn, microfine cement grout was injected from the surface to support underground tunneling. The hand-dug tunnel was built to connect to sewer pipes. Subsurface boring was chosen instead of cut and fill construction because locals didn't want traffic relocated or possible damage to neighborhood buildings from de-watering. The grouting lent support to the soil. Tunneling was complicated by existing flushing pipe making it necessary to cross the top half of existing pipe. A comparison on U.S. and Japanese microfine cement grouts is presented and new applications of this relatively new product are discussed.

Subject Headings: Grouting | Tunneling | Pipe cleaning | Existing buildings | Cement | Underground structures | Underground construction | New York City | New York | United States

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