The EPX2 Resilient Waterfront Platform is a new and useful process, a resilient building technology that provides for the efficient adaptation and safeguard of waterfronts against adverse events. It is an optimized, elevated Waterfront Resiliency infrastructure solution that is legible, practical, high quality, highly efficient, and deployable, and provides a timely go-to standard for new and existing Waterfront communities and historic districts at risk to Climate Change. One purpose of this resilient building technology is to improve public safety and minimize property damage in response to accelerating climate change forces, including seismic, flooding, and sea level rise. The platform assembly is comprised of several components including elevated sea walls, wharves, piers, buildings, accessways and the rehabilitation of historic architecture components, as applicable. It is an effective, practical, and permanent solution to resist natural forces, while providing a modernized platform for a variety of waterfront experiences.

A coastal resilience system for disrupting wave energy and storm surge flux and allowing accumulation of tidal-borne sediment has an interconnected network of biomatter-heavy floating mats positioned in water near a shoreline, and an interconnection subsystem with connection lines flexibly connecting adjacent floatable mats. Lines may be connected, at a plurality of force transfer points or regions within or near the interior of the mat, to other interconnection components positioned within the mat. In some embodiments, mats have yoke sites spaced around their edges and a connection line extends in a straight line from a first yoke site, through the interior of a mat, and to a second yoke site. The connection lines may intersect at an intersection position in the interior of the floatable mat, multiple connection lines may extend across the interior of the mat, but not always through a center of the interior of the mat.

A floating wave-attenuation device comprises: a floating body; and a wave-receiving plate disposed inclinedly and downwardly at an angle with respect to a horizontal level, wherein a first end of said wave-receiving plate is attached to the front portion of said floating body, and a second end of said wave-receiving plate is submerged under a water surface; and a float linked and fastened via a fastening string to the rear portion of the floating body by stringing the fastening string via one portion of said wave-receiving plate, wherein said float is disposed forwardly of the floating body.

A pile guide construct for floating docks. An elongated and vertical sleeve is positioned over a pile that is driven into the earth. A guide is positioned over the elongated and vertically positioned sleeve. A limiting cap is positioned an upper end of the sleeve that acts as a stop to prevent the guide from exceeding a vertical height that is greater than the height of the pile. Forming the sleeve and guide of thermoplastic, such as high density polyethylene, provides a sleeve and guide that are both durable and corrosion resistant, while also providing a construct having a low coefficient of friction that facilitates vertical movement of the guide relative to the sleeve and the pile. A collar mounted to the sleeve and spaced apart from the limiting cap may also be provided to provide a lower limit of travel of the dock relative to the pile.

Methods, systems, and computer-readable media that implement an autonomous modular breakwater system. An example system includes a plurality of autonomous submersible structures, each configured to mechanically link to any other of the plurality of autonomous submersible structures to form a breakwater. The system includes a controller configured to perform operations including: determining a location for construction of a breakwater; determining an initial location of each of the plurality of autonomous submersible structures; selecting, based at least in part on the initial location of each of the plurality of autonomous submersible structures, a subset of the plurality of autonomous submersible structures for constructing the breakwater; and transmitting, to each of the selected autonomous submersible structures, instructions to transit from the respective initial location to the location for construction of the breakwater and to mechanically couple to at least one other autonomous submersible structure to form the breakwater.

A multifunctional floating breakwater includes: a plank platform, a first buoy, a second buoy, a first wave baffle, a second wave baffle, a first arc breast wall, a second arc breast wall, upper inclined supports, lower inclined supports and a net cage. The multifunctional floating breakwater integrates a floating breakwater and a wave-energy power generation device, which can not only maintain good stability of the water surface in a harbor, but also generate electric energy, and allow for aquaculture and other activities as well, and has advantages of being movable and not limited by water depth and geology. In addition, the invention has a simple structure, easy production and maintenance, no pollution to the marine environment and therefore wide application prospects.

A multifunctional floating breakwater includes: a plank platform, a first buoy, a second buoy, a first wave baffle, a second wave baffle, a first arc breast wall, a second arc breast wall, upper inclined supports, lower inclined supports and a net cage. The multifunctional floating breakwater integrates a floating breakwater and a wave-energy power generation device, which can not only maintain good stability of the water surface in a harbor, but also generate electric energy, and allow for aquaculture and other activities as well, and has advantages of being movable and not limited by water depth and geology. In addition, the invention has a simple structure, easy production and maintenance, no pollution to the marine environment and therefore wide application prospects.

A device for damping hydrosound in liquid having a frequency range emitted from a sound-emitting body in the liquid includes: a plurality of individual gas volumes distributed in the liquid in an area of the sound-emitting body and at a distance from each other, each of the individual gas volumes being operable to reduce the hydrosound through resonant oscillations; and at least one mass body disposed in the liquid, the individual gas volumes being connected to the at least one mass body so as to prevent the individual gas volumes from rising up in the liquid.

A movable tsunami buffer dam has a unit configured such that a plurality of separate units, each of which having a shape in which a frame made of a light material is sandwiched by a pair of plates made of a light material, is stacked with said plates disposed in a pile; and a locking member for locking said unit to a ground surface such that said unit can rise up from said ground surface and collapse onto said ground surface. The separate units has a structure in which water from a tsunami can advance into a space formed between said plates by said frame.

A required thickness is ensured due to said unit being configured such that said separate units are stacked, and the manufacturing cost is reduced to a greater extent than in the case of a dam configured from a single separate unit of said required thickness, because the big size lumber for obtaining the units is very expensive. The unit is installed in a state of being collapsed on said ground surface at normal times, and when a tsunami arrives, said unit rising up due to the force of the tsunami and the buoyancy of the seawater, resisting the passage of the tsunami and reducing the power of the tsunami.

A floating dam or island is provided by pre-fabricating modular hollow bodies. A first group of modular bodies is laid floating on a water surface, positioning the modular bodies in mutual side-to-side arrangement so as to delimit therebetween intermediate gaps within which the reinforcing rods are protruding. A first concrete casting is performed into the gaps and over the modular bodies so as to render them mutually joined. A second group of modular bodies is then laid over the first group and a second concrete casting is performed in order to join the first and second group together. Additional groups of modular bodies are laid and further concrete castings are performed up to obtaining a monolithic block having a desired floating dam or island configuration.