A flood barrier system includes vertical elements and panels extending between such vertical elements, the foregoing components having various features for inhibiting passage of flood water therethrough. One or more vertical elements may have a multi-layer base plate which forms a watertight seal with vertical gaskets disposed on the vertical elements. One of the vertical elements of the system may comprise a stanchion post which may be formed of extruded aluminum. Another vertical element which may find potential use in certain applications may be secured to a store front mullion. The panels in such system may include specially adapted gaskets to reduce instances of leakage. The vertical elements and panels allow the present flood barrier system to be flexible and readily deployable as a barrier to flood or flood risk.

An inflatable dam sized to secure to a foundation structure. The inflatable dam includes a double layered flexible membrane extending with an inner membrane and an outer membrane, the double layered flexible membrane including a port configured to facilitate inflation and deflation of the inner membrane such that, upon inflation of the inner membrane, the outer membrane is configured to expand with inflation of the inner membrane, the outer membrane including a reinforcement element embedded therein.

A barrier system comprising: an elongate and rigid base member having a channel defined by inner walls of the base member, the channel extending along the length of the base member, the rigid base member being adapted to be anchored to an underlying supporting surface wherein the channel comprises a relatively broader in-use lower portion with a first width (w1) and a relatively narrower in-use upper portion with a second width (w2) defining an opening into the channel; and a removable wall assembly adapted to be removably fastened relative to the base member, the removable wall assembly comprising a flexible barrier wall having a length and a height and being adapted to be positioned within the opening of the upper portion of the channel wherein the wall assembly comprises a frame assembly for framing the barrier wall, the flexible frame assembly further comprising a top frame member and a bottom frame member with the height of the flexible barrier wall extending therebetween and wherein the bottom member is dimensioned to have a thickness that is less than or equal to w1 and that is greater than w2 for allowing the bottom member be received into the lower portion of the channel to position the flexible barrier wall in a substantially upstanding position and for simultaneously preventing the bottom member from being passed through the opening defined by the upper portion of the channel in an upwardly direction.

The present invention relates to a retractable floodwall unit that comprises a foundation unit having a plurality of guide tracks along side walls of the foundation unit, a floodwall panel stowed in the foundation unit; and a power system for raising and lowering the floodwall panel. The foundation unit includes a first housing unit enclosing an actuator of the power system, and the floodwall panel includes a plurality of guides that mate with the guide tracks of the foundation unit.

The present invention relates to a retractable floodwall system comprising a floodwall panel installed in a housing unit. The floodwall panel is connected with a counter-balance weight. The floodwall panel is capable of being raised from the housing unit and being lowered into the housing unit. The present invention also relates to a method of flood prevention comprising providing a floodwall panel in a housing unit; connecting the floodwall panel with a counter-balance weight; raising the floodwall panel from the housing unit for flood prevention; and lowering the floodwall panel into the housing unit.

The present invention relates to a retractable floodwall system comprising a floodwall panel installed in a housing unit. The floodwall panel is connected with a counter-balance weight. The floodwall panel is capable of being raised from the housing unit and being lowered into the housing unit. The present invention also relates to a method of flood prevention comprising providing a floodwall panel in a housing unit; connecting the floodwall panel with a counter-balance weight; raising the floodwall panel from the housing unit for flood prevention; and lowering the floodwall panel into the housing unit.

An inflatable dam sized to secure to a foundation structure. The inflatable dam includes a double layered flexible membrane extending with an inner membrane and an outer membrane, the double layered flexible membrane including a port configured to facilitate inflation and deflation of the inner membrane such that, upon inflation of the inner membrane, the outer membrane is configured to expand with inflation of the inner membrane, the outer membrane including a reinforcement element embedded therein.

The present invention discloses a brick, comprising a brick body, which comprises at least one slot position for connecting a column, and a method for using the bricks to build dikes in water, including the following steps: (1) drilling a plurality of pile holes at water bottom; (2) casting concrete into each of the pile holes to form concrete columns; (3) stacking up a number of the bricks along the concrete columns and having them tightly connected to form a wall; (4) filling the clearances between the concrete columns and the bricks with mortar. The bricks and dike building method provided by the present invention are suitable for direct over-water dike building, the construction is fast and the dikes built are firm and stable, have superior waterproof function and can effectively prevent the impact of currents, winds and waves.

The invention relates to improved water control gates and related inflatable actuators, and associated sealing, manufacture and operation apparatus and methods. Advancements in technologies related to air fitting design, inflated bladder stress relief, inflatable bladder strength enhancement, water gate related slide friction mitigation, abutment and other impounded water seals, gate panel fabrication, traffic accommodating water impoundment structures, and water gate panel system operation efficiency, as well as nappe aeration, hinges, and bladder manufacture technology are disclosed herein.

To make it possible to raise a door body even if it is damaged by an impact of vehicle traffic or falling objects when it is in a lowered state, and to keep the door body in a raised state even if it is damaged by a water pressure of a tsunami or a high tide when it is in a raised state. A door body 2 of a floating flap gate 1 is disposed at an opening or at an access way. When water flows in, a forward end 2b of which swings upwards, in a direction in which the water flows in and within a plane in a height direction, around a base end 2a thereof which serves as a center of rotation, to block the opening or the access way. The door body 2 is formed from a hard polyurethane foam 4 in the form of a sheet.