SCOUR COUNTERMEASURES USING GEOSYNTHETICS AND PARTIALLY GROUTED RIPRAP

The main requirement of any scour countermeasure or scour protection measure is to prevent erosion, so a top layer has to be built that is sufficiently resistant against the hydrodynamic loads and that protects the subsoil. Single elements have to be large enough to withstand the scouring forces and require an appropriate layer thickness. Smaller, mutually connected elements allow for a moderate layer thickness but provide the same resistance. To avoid excess water pressures below the top layer, permeable systems are recommended. A very reliable system is partially grouted riprap, which meets all the requirements of strength, flexibility, and permeability. Permeable systems need a well-designed filter. Placement of a grain filter or a geotextile filter is complicated by the current, so special equipment is needed. In mild currents a "sandmat" (a sandfilled nonwoven geotextile) can be used. In stronger currents use of geosynthetic geocontainers is proposed to achieve both a high resistance against the current and a well-performing filter.

• Record URL:
  https://doi.org/10.3141/1696-70
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=SCOUR+COUNTERMEASURES+USING+GEOSYNTHETICS+AND+PARTIALLY+GROUTED+RIPRAP&author=M.+Heibaum&publication_year=2000
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309071224
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1696, Fifth International Bridge Engineering Conference, April 3-5, 2000, Tampa, Florida, Volume 2. The revised name of this series is Transportation Research Record: Journal of the Transportation Research Board.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Heibaum, M H
• Conference:
  • Fifth International Bridge Engineering Conference
  • Location: Tampa, Florida
  • Date: 2000-4-3 to 2000-4-5
• Publication Date: 2000

Language

• English

Media Info

• Features: Figures; Photos; References;
• Pagination: p. 244-250
• Serial:
  • Transportation Research Record
  • Issue Number: 1696
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Bridges; Countermeasures; Erosion control; Filters; Geosynthetics; Geotextiles; Nonwoven textiles; Permeability; Riprap; River currents; Scour
• Uncontrolled Terms: Geocontainers
• Subject Areas: Bridges and other structures; Design; Geotechnology; Highways; Hydraulics and Hydrology; Marine Transportation; Materials; Safety and Human Factors; I24: Design of Bridges and Retaining Walls; I35: Miscellaneous Materials;

Filing Info

• Accession Number: 00789745
• Record Type: Publication
• ISBN: 0309071224
• Files: TRIS, TRB, ATRI
• Created Date: Mar 9 2000 12:00AM