Beach erosion control structures comprising a perforate wall designed to combat erosion of a beach shoreline by wave action. The wall includes multiple courses of cored concrete blocks laid on their side so that the core holes provide horizontal passageways through the wall for the flow of water and entrained sand in incoming waves. The wall also includes multiple rows of such blocks arranged in such manner that the core holes of adjacent rows of blocks are staggered. A beach erosion structure a...

Shore erosion control structure has a plurality of block members laid on a beach along a shoreline to form a wall having a plurality of parallel rows and vertical courses. Each of the block members has substantially horizontal, seaward facing openings within which are spaced apart baffles. The baffles are removably accommodated in the openings so as to be adjustable and provide tortuous passages through the wall through which water and entrained sand may flow. Water containing entrained sand flo...

This invention relates to a method and apparatus for preventing erosion of beaches by tidal waves, comprising placing hollow enclosures, such as "quonset" type huts, end-to-end along the beach, with slots on the walls of the huts, and wherein the huts are so placed that incoming tidal waves will be diverted over the roofs of the huts. Incoming and outgoing waves will be retarded in velocity by flowing through said slots and sand will be deposited and accumulated inside the huts. Reduction of wav...

This block for protecting fixed or floating works against the impact of moving liquid masses, for example waves, comprises a pair of convergent elongated elements forming together a kind of bow directed towards the wavefront to be deadened, and one or more complementary elements connected to said bow to constitute seating means for the complete block. The free ends of these elements are provided with protrusions or the like, preferably of substantially frustoconical configuration, for interlocki...

Apparatus for controlling erosion of the earth primarily in sound and beach areas by water and wind. The apparatus includes a frame having a substructure to be embedded in the earth and a superstructure for trapping and retaining earth which is being displaced by either water or wind.

A seawall structure adapted to combat erosion of a shoreline by wave action comprises a perforate wall arranged along and substantially parallel to the shoreline and having openings therethrough facing seaward through which the water of incoming waves may pass. Each opening through the wall forms a tortuous passage for the water so that the energy of the water is dissipated gradually as it flows through the wall, thereby enabling sand entrained in the water to be deposited landward and seaward o...

A prefabricated composite element for building, together with a plurality of similar elements, a breakwater sea wall comprising a pole having a poligonal cross section with a pointed tip, supporting a plurality of breakwater arms threaded in succession upon the pole in a progressively offset manner according to the edges of the pole.

An artificial reef for inhibiting beach erosion is formed from a plurality of connected adjacent blocks, each having a base with inclined front and back walls connected by vertical side walls and a flat bottom surface. A plurality of rectangular vertical columns are spaced along an upper surface of the base and are sequentially stepped in height from the front and back walls to a maximum height adjacent a mid-portion of the base. A plurality of vertically spaced saw toothed wave forms extend alo...

A mosaic seawall comprises a fascine of vertically-elongated structural prisms of generally identical cross-section. Each of the elements has at least one lateral face abutting a lateral face of another of the prisms to define a common lateral face extending substantially the full vertical extent of at least one of the abutting prisms. A plurality of the prisms together define in cross-section a stable mosaic to resist overturning or sliding under the wave action, a plurality of the prisms toget...

A breakwater comprises a base and an interlocking plurality of vertically-oriented elements of generally quadrangular cross-section. The elements are mounted on a vertically-fixed upper surface of the base, form a monolithic horizontally-extending fascine, and define a vertically stepped mosaic crown.