SLURRY STOPS SEEPAGE

The construction is described of two gargantuan ventilation and tunnel entrance structures for a new bridge and tunnel crossing of the Hampton Roads Waterway in Virginia. The twin structures built on manmade islands at each end of a 4,500-ft-long, sunken-tube tunnel, are founded 480 ft below mean sea level and top out at more than 50 ft above the water's surface. The tubes were set on beds of gravel which creates natural paths for water to flow into cofferdams. The water flows had to be sealed off. This was done by pumping 20,000 gallons of bentonite slurry through pipes into the gravel bedding. Details of the construction are briefly described.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08919526
• Corporate Authors:

  McGraw-Hill, Incorporated

  330 West 42nd Street
  New York, NY  United States  10036
• Publication Date: 1991-3-25

Media Info

• Pagination: p. 22-23
• Serial:
  • ENR
  • Volume: 226
  • Issue Number: 12
  • Publisher: McGraw-Hill, Incorporated
  • ISSN: 0891-9526

Subject/Index Terms

• TRT Terms: Bentonite; Bridges; Foundations; Gravelly soils; Seepage; Slurry; Tunneling
• Old TRIS Terms: Foundations (Structures); Slurries
• Subject Areas: Bridges and other structures; Construction; Highways; Hydraulics and Hydrology; I20: Design and Planning of Transport Infrastructure;

Filing Info

• Accession Number: 00605141
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 31 1991 12:00AM