Self-actuating floodwater barrier

摘要

A floodwater barrier for protecting the shore side of a shoreline from flooding includes at least one self-actuating floodwater barrier unit for installation between a pair of walls transverse to a shoreline. The unit includes a flexible resilient panel, a plurality of rigid members connected to the panel, at least one watertight chamber of size and arrangement to give the unit water buoyancy, hinged to be rotatable upward about a horizontal axis longitudinal to the shoreline under the influence of buoyancy and hydrostatic pressure from a rise of the body of water acting on the unit, and further includes flexible tension members positioned to act on the floodwater barrier unit to limit upward rotation of the unit to a predetermined extent.

主权项

1. A self-actuating floodwater barrier unit for installation along a shoreline adjacent a place for a body of water, between a pair of walls transverse to the shoreline, comprising:
a. a panel assembly comprising a flexible resilient panel and a plurality of rigid attachment members connected to said panel, said flexible resilient panel comprising one or more watertight chambers of size and arrangement to give said panel assembly water buoyancy; b. pivotation members comprising a stationary member for anchorage adjacent the shoreline and a moveable member connected to a said rigid attachment member on a lower portion of said panel assembly, the moveable member being moveably joined to said stationary member and pivotally rotatable upward from a normally horizontal disposition of the flexible resilient panel about an axis longitudinal with said shoreline under the influence of water buoyancy and hydrostatic pressure from a rise of said body of water; and c. a flexible tension member connected at one end to an anchorage lower than said panel assembly when the panel assembly is horizontally disposed and at the other end connected to a said rigid attachment member at a position on said panel assembly effective to limit upward rotation of the panel assembly to a predetermined extent.