Proposed is a wave-dissipating block including: a body placed on a seabed perpendicularly thereto and having a shape of a polygonal column, a cylinder, an oval column, or a cross-shaped column; male coupling protrusions formed on a first surface of the body in a height direction thereof and on a surface opposite to the first surface, respectively; female coupling grooves formed in a second surface of the body in the height direction thereof and in a surface opposite to the second surface, respectively; a habitat part configured as a space defined at a center portion of the body or a portion of the body; a dividing plate provided as a plate dividing the habitat part into habitat parts; a through hole formed in the dividing plate; and a space part having a space defined between multiple bodies of wave-dissipating blocks connected adjacently to each other.

A seawall section includes a central hub having an axis extending in a longitudinal direction and three circumferentially spaced walls extending radially from the central hub. Each of the walls is made of cast concrete reinforced with a rebar cage having a plurality of longitudinally spaced pairs of parallel rebars extending radially from the central hub to an end rebar that extends perpendicularly relative to the parallel rebars. Each end rebar is connected to radially outer ends of one of the pairs of parallel rebars. A seawall comprises a plurality of the seawall sections connected together end-to-end with a cable, and connecting plates fastened to adjacent sections. A form for manufacturing the seawall section encloses connected rebars and is filled with concrete.

Proposed is a wave-dissipating block including: a body placed on a seabed perpendicularly thereto and having a shape of a polygonal column, a cylinder, an oval column, or a cross-shaped column; male coupling protrusions formed on a first surface of the body in a height direction thereof and on a surface opposite to the first surface, respectively; female coupling grooves formed in a second surface of the body in the height direction thereof and in a surface opposite to the second surface, respectively; a habitat part configured as a space defined at a center portion of the body or a portion of the body; a dividing plate provided as a plate dividing the habitat part into habitat parts; a through hole formed in the dividing plate; and a space part having a space defined between multiple bodies of wave-dissipating blocks connected adjacently to each other.

This application relates to a structure for preventing soil loss in slopes of a river and a coast. In one aspect, the structure includes a body part made of concrete, a plurality of first leg parts connected to a first end of the body part and arranged on a first plane by extending therefrom in longitudinal directions of the first leg parts, and a plurality of second leg parts connected to a second end of the body part and arranged on a second plane perpendicular to the first plane by extending therefrom in longitudinal directions of the second leg parts. The structure may further include a first reinforcement part provided by protruding outward from the body part, a second reinforcement part provided on a portion of each of the first leg parts by protruding outward therefrom, and a flowing water induction part provided as a shape of a channel.

In an exemplary embodiment, a system for making tied block mat with a border includes a mold having an array of mold cavities; and a hopper that receives a hardenable paste and is spaced from the mold to receive a sheet of mesh material therebetween, the hopper having an opening for depositing the hardenable paste into selected mold cavities, the hopper forming a filling zone with the mold wherein the hardenable paste flows through the opening into the selected mold cavities, and a blocked zone where the hardenable paste is prevented from entering other selected mold cavities of the mold; whereby the tied block mat is formed wherein the hardenable paste in the selected mold cavities becomes embedded in the sheet of mesh material in the filling zone, and a border is formed in the blocked zone where the hardenable paste is blocked from entering the other selected mold cavities.

A structural barrier and energy absorbing device comprising a plurality of structural elements is provided. The structural element alone or in a plurality may serve as a traversal impediment or energy absorbing device, such as a pedestrian barrier, vehicular barrier, anti-tank obstacle, ballistic barrier, or the like. The structural element may be a tetrapod such that it comprises an element body having four extension portions that extend outwardly from the interior center to a distal end, such that the structural element maintains an identical orientation and a low center of gravity in each of four resting positions. The structural element may be a solid-state structural element comprised of a particular material or a portable and collapsible structural element wherein the element body comprises an outer skin defining an interior void space, such that during set-up or installation the interior void space may be filled with a filler substance onsite.

In an exemplary embodiment, a system for making tied block mat with a border includes a mold having an array of mold cavities; and a hopper that receives a hardenable paste and is spaced from the mold to receive a sheet of mesh material therebetween, the hopper having an opening for depositing the hardenable paste into selected mold cavities, the hopper forming a filling zone with the mold wherein the hardenable paste flows through the opening into the selected mold cavities, and a blocked zone where the hardenable paste is prevented from entering other selected mold cavities of the mold; whereby the tied block mat is formed wherein the hardenable paste in the selected mold cavities becomes embedded in the sheet of mesh material in the filling zone, and a border is formed in the blocked zone where the hardenable paste is blocked from entering the other selected mold cavities.

The present disclosure provides for marine foundation modules to support erosion control structures for protection against coastal shoreline erosion. The module has a planar base having at least four connected wall sections, with each wall section having an upper tapered wall section extending outwardly from the planar base and a lower vertical wall section extending downwardly from the upper wall section. The at least four wall sections and the planar base define an inner cavity having an inner surface area, the inner surface area having a central planar inner surface extending outwardly to an inner tapered surface transitioning concavely to an inner lower vertical wall surface. The lower vertical wall sections are configured to embed into soil of a sea bed floor, for anchoring the module. The inner cavity encloses the soil, such that the soil exerts an upward force on the inner surface area of the module to enhance load bearing capacity of the module.

A system is provided for shoreline stabilization using a plurality of shoreline stabilization devices, having a base portion, which may be a solid structure or be formed from at least first two of the shoreline stabilization devices arranged in an end to end configuration on opposite sides of an imaginary line running perpendicular to the two shoreline stabilization devices; the base portion having a central protrusion or having at least one of the shoreline stabilization devices positioned perpendicular to and on top or in between the first two shoreline stabilization devices, and atop the imaginary line; and at least a second two of the plurality of shoreline stabilization devices each positioned on opposite sides of the imaginary line at an angle to provide at least two angled shoreline stabilization devices, forming an angle between a slope of between about 1.5:1 and 2:1.

Disclosed is a concrete cover element for a breakwater or jetty construction. The cover element includes a plate portion and two noses. The plate portion lies in the xy-plane and has a thickness. The two noses project in opposite directions from the plate portion and form a single part with the plate portion. The plate portion is to be imagined as being formed from a quadrangular plate whose two opposite plate edges are incised in the middle to form a plate recess, and whose corners located on the first plate diagonal are both cut off along a first secant. The plate portion has a first dimension measured along the first plate diagonal and a second dimension measured along the second plate diagonal. The first dimension is smaller than the second dimension.