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Design of movable weirs and storm surge barriers: report of Working Group 26 of the Inland Navigation Commission
InCom Working Group 26 (2006). Design of movable weirs and storm surge barriers: report of Working Group 26 of the Inland Navigation Commission. PIANC = AIPCN: Brussel. ISBN 2-87223-154-4. 124 + cd-rom pp.

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    Design; Storm surge barriers; Weirs

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  • InCom Working Group 26

    The PIANC InCom-WG26 (Working Group) performed a comprehensive review (state-of-the-art) of the modem technologies, design tools, and recent researches used to design and build structures controlling water level and flow in rivers, waterways, and ports (for navigation and flood protection).

    The WG considered regulatory structures of river control weirs and storm surge barriers, focussing on the gate design. This includes :
    • Gates controlling water level and flow in rivers (even those not navigable) and waterways (lifting gate, tilting gate, radial gate, sector, etc.; designed in one piece or with an upper flap). These are movable weirs.

    • Gates controlling water level and flow in estuaries with regard to high tides and storms (lifting gate, articulated, tilting, rolling, floating, sliding, etc.). These are flood barriers.

    The WG Report focuses on the following aspects :
    • List of the recent movable weir and barrier projects (see project reviews), presentation of their concepts and innovations, and the driving forces considered for selecting these particular designs (Section 2.1).

    • A terminology review of the technical terms and names used to define weirs and barriers (Section 2.2).

    • Design procedure for the design of weirs and barriers (Section 3).

    • A review of the various multi-criteria assessment approaches that can be used to select the most relevant designs (Section 4). List of criteria for weirs and barriers, are proposed.

    • Technical considerations including environmental, economic and safety aspects, for design, construction, maintenance and operation (Section 5).

    • Structural considerations on various gate-types with an advantage-disadvantage comparison (Section 5.1).

    • Technical background required to perform hydraulic and flow analysis of various gate-types (Section 5.2).

    • Interaction between foundation and weir-barrier structure (Section 5.3).

    • Control procedures of the gate operations and their maintenance (Section 5.4).

    • Survey of the temporary closure systems (e.g. bulkheads) used for inspection and maintenance (Section 5.5).

    • State-of-the-art of the risk-based design methods. With applications to navigation weirs and flood barriers (Section 5.6).

    • Interactions between the technical aspects of a weir/ barrier design with environmental and aesthetic considerations (Section 5.7).

    • Procedure to assess the global construction cost of a weir at the design stage (Section 5.8).

    • Design assessment tools for preliminary and detailed design stages (Section 6 and Annex A).

    • Prefabrication techniques (Section 7).

    • Codes, rules and standards: at national and international level; including the use of the semi-probabilistic Eurocode format (Section 8).

    • An extensive list of relevant technical books, web sites, and guidelines (Section 10).

    The present hardcopy WG-26 report is a reduced version of the full report, which is available on the companion cd-rom, attached to this PIANC hardcopy report (Directory /A2- report WG-26 (Extended version).

    The cd-rom includes

    • About 50 project reviews of movable weirs and storm surge barriers with various flat, radial, lifting, sector, and inflatable gates (Directory A1 on cd-rom)

    • A PDF copy of this report (Directory A2 on cd-rom)

    • Sponsor company references (Directory A3 on cd-rom)

    • Various additional information about Sections 3, 4, 5, 6, 7 and 8 of this report (Directory Annex Section # on the cd-rom)

    • Various technical guidelines (Directories B on cd-rom) such as

      • B1: PIANC's "Illustrated Technical Dictionary" (Locks, Gates, Dewatering services and Protection from Ship Impact).
      • B2: "Design ofMobile and Marine Metallic Structures using the Limit States and Partial Safety Factor Concepts" (France) & "ROSA 2000: Guidelines for the limit state design of harbour and waterways structures"
      • B3: Movable Weirs (Guide du chef de projet)
      • B4: Inflatable Weirs (Germany)
      • B5: Maintenance bulkhead types and Temporary and Demountable Flood Protection. Some technical reports are also given.
      • B6: Examples of rehabilitation Weirs
      • B7: Flood Protection in UK
      • B8: Environmentally Considerate Lubricants

    • WG26's Meeting Pictures, Directory C on the cd-rom

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