319 results about "Breakwater" patented technology

Provided are static and free-floating breakwater apparatuses that utilize a rocking panel (or beach) to dissipate wave energy. At the same time, such rocking motion can in certain embodiments be used to generate electrical power. Generally speaking, the breakwater apparatuses use a buoyant element, such as an open-bottomed hollow chamber and / or a ballast tank to resist the wave's force.

The invention discloses a nuclear power plant breakwater overtopping impact simulation method based on a mixed model. The method includes the following steps that at first, a three-dimensional entity finite element model of a fine structure of a breakwater is established; secondly, a breakwater structure rigid body model and a neighboring environment entity model are established; thirdly, initial stress is added to the established three-dimensional mixing finite element model of the nuclear power plant breakwater to simulate the initial operating condition to obtain the initial state of the nuclear power plant breakwater under the action of gravity and seawater pressure; finally, after distribution of initial stress of the nuclear power plant breakwater is obtained, the impact state and the overtopping state of the nuclear power plant breakwater under the action of waves are obtained, and integral simulation of the breakwater is achieved. According to the method, simulation analysis of numerical simulation of the super-large-scale nuclear power plant breakwater is achieved, response rules of an overall model can be contained, meanwhile local structures can be finely analyzed, local dangerous positions are obtained, and reference bases are provided for engineering design of the nuclear power plant breakwater.

The invention relates to a wave elimination assembly and system for establishing a floating breakwater and a floating platform. The wave elimination assembly comprises a plate-type wave elimination element provided with a through hole, a floating box, a connecting plate supported on the upper surface of the floating box and a connecting piece, wherein the plate-type wave elimination element is formed by a plurality of flat plates which are intersected pairwise and provided with through holes; the adjacent and intersected flat plates are provided with different through hole structures; the central axis position of the floating box is provided with a center hole; and the connecting piece vertically passes through the floating box and is connected with the connecting plate and the plate-typewave elimination element. The three-dimensional multidirectional plate-type wave elimination assembly can be used as a main body structure of the floating breakwater and can be flexibly spliced into various types of floating wave elimination systems with three-dimensional multidirectional wave elimination and current elimination effects according to actual requirements when being applied; if an upper structure is additionally arranged on the connecting plate, the floating platform is formed. According to the invention, the flowing situations of incoming flow and incoming waves are influenced by reducing the waterflow speed through a porous structure and changing the flowing direction of waterflow on the three dimensions, therefore the effects of damaging propagation of waves and ocean current and eliminating waves and ocean current are achieved.

The method and apparatus for shoreline land mass reclamation which includes replacement of at least one groyne section along a shoreline wherein the section includes a pair of spaced stanchions which are connected by at least one linkage member which supports vertically extending baffle elements and wherein the at least one linkage member is piovtably connected such that the spaced stanchions may be vertically adjustable relative to one another.

The invention discloses a method for predicting and evaluating strong earthquake resistance of a nuclear power station breakwater. The method includes the steps of firstly, building three-dimensional finite element models of the breakwater and a seabed foundation; secondly, performing working condition simulation on the earth and breakwater structure initial stress guided into the breakwater three-dimensional finite element model to obtain the initial stress state of the breakwater system; thirdly, adding external simulation conditions to the initial state breakwater system three-dimensional finite element model, and then using an explicit nonlinear finite element method to solve on a super computer platform to obtain the earthquake response of the breakwater; fourthly, evaluating the earthquake resistance of the breakwater according to the dynamic earthquake response of the breakwater system obtained in the third step. By the method, calculating efficiency and precision can be increased, design construction period of the breakwater can be shortened, and accurate and reasonable scientific guidance is provided with earthquake resistance design of the breakwater system and similar coasting defense projects.

The invention relates to a breakwater ecologicalization technology, particularly to a servicing ocean breakwater underwater area ecological restoration method, and belongs to the field of ocean engineering and ocean ecological engineering. The method comprises the following steps: (1) investigating a sea area of a concrete structure construction position; (2) preparing a concrete adhesion matrix;(3) quantitatively collecting and culturing young oysters; (4) cleaning the surface of the breakwater; (5) carrying out underwater pouring of mortar; (6) placing an oyster adhesion matrix on site; (7)monitoring larva attachment; and (8) adding and managing nutrient substances. According to the invention, underwater non-dispersible ecological mortar is developed, and is poured into breakwater underwater area without oyster attachment to induce oysters to be massively attached to the breakwater underwater area, and due to the fact that the oysters serving as ecological engineers have the characteristics of purifying water and improving the water area, ecological restoration of the breakwater underwater area is achieved, and all-around high ecologicalization of the marine breakwater is achieved.

Improved breakwater construction blocks and interlocking shear key blocks for use in constructing diverse systems and works, in broad fields of use including, but not limited to, coastal engineering: river, stream and torrent control, bulkhead designed projects, scour control, check dams, permeable and impermeable groins-both river and ocean structures and other hydraulic works including marinas.

The invention discloses an opened backflow shutter type bulwark which comprises a bulwark body in a slope external structure. The bulwark body is characterized in that the bulwark body inside is a swash height chamber in a caisson structure. A plurality of opened channels are arranged on the lower part of the bulwark body on the coastal side in a length direction. The opened channels are connected with the swash height chamber. A shutter structure is arranged on the upper part of the bulwark body in the sectional direction of the bulwark body. The shutter structure is connected with the swash height chamber and forms a wave channel with the opened channels. According to the bulwark provided by the invention, the wave height is reduced by the gap of the shutter, energy is consumed by the swash height chamber, and the action force by wave on the bulwark is reduced by backflow of the opened channels.

The invention provides a novel caisson composite levee of a curve breast wall. One side of a breakwater is a seaside while the other side is a harbour side. The breakwater structure comprises a rubble-mould foundation bed, wherein the levee caisson serving as a levee body is fixed on the rubble-mould foundation bed; the arc curve breast wall is fixed on the upper part of the levee caisson; the arc curve breast wall is a member with a hollow or a solid curve; and the shape of the cross section of the arc curve breast wall is formed by connecting the cross section of a soleplate, the cross section of a vertical plate and the cross section of an arc curve surface of the seaside. The breakwater of the invention has the advantages of optimal wave-breaking effect, good structure stress state, good visual effect, more convenient construction than the common breakwater and reasonable construction cost, and is in particular suitable for rough terrains with large water depth and huge wave.

The invention discloses a wave preventing method including steps of wave elimination and energy consumption by a main mode of wave energy conversion, and further provides a breakwater system using the wave preventing method. In the system, the upper end of an annular two-way hydraulic damper is fixedly connected with a floater; parallel steering shafts are arranged on the front and back end surfaces of main floating bodies; the tail ends of the steering shafts are fixedly connected with a floater winding shaft; at least two blade connecting rods are linearly fixed on the left and right two sides of the main floating bodies; rotating shafts are rotationally connected between each pair of adjacent blade connecting rods; an anchor chain is mounted on the blade connecting rod at the lowest part, and is buckled with an anchor; blades are mounted between the left and right symmetric rotating shafts on all the main floating bodies; each pair of adjacent main floating bodies are spherically connected through spherical hinges; hydraulic oil dampers are arranged between the main floating bodies; and hydraulic damper connecting bases and piston rods are mounted on the hydraulic oil dampers. The system has the effects of high safety and good wave eliminating effect.

The invention discloses a breakwater structure capable of achieving wave energy electricity generating by using piezoelectric materials. The breakwater structure comprises a breakwater main body and amovable baffle, wherein the breakwater main body is arranged in an inclined mode, a plurality of grooves are formed in the inclined face of the breakwater main body, and a plurality of piezoelectricvibrators are arranged on the inner walls of the grooves; the movable baffle is arranged corresponding to the inclined face of the breakwater main body and is located on the surface of the inclined face, a plurality of bulges are arranged on the movable baffle, the bulges and the grooves are arranged in a one-to-one correspondence mode, and the bulges extend towards the interiors of the grooves; and an elastic piece is arranged at the end of each bulge, and a plurality of shifting pieces corresponding to the piezoelectric vibrators are arranged on the outer surfaces of the bulges. According tothe breakwater structure, a piezoelectric electricity generating technology is adopted, wave kinetic energy is directly converted to electric energy, the energy conversion efficiency is improved, themovable baffle is utilized as a wave energy absorbing device to play a buffering role, and the wave upwelling height is reduced; and the sizes of the piezoelectric electricity generating vibrators are small, a space in a breakwater is effectively saved, and the land space use rate behind the breakwater is improved.

The invention discloses a mounting method for a flexible floating breakwater. The mounting method comprises preparation for mounting, mounting and positioning floating drums, putting a flexible floating breakwater into water, and arranging the flexible floating breakwater in to a V-shaped structure. The mounting method for the flexible floating breakwater is simple in structure, convenient to manufacture, safe, reliable, high in economic benefit, stable and efficient, and can be used in various weathers.

The invention discloses a parabolic wave energy utilization type breakwater. The parabolic wave energy utilization type breakwater comprises a floating type breakwater structure with a parabolic opening array and an oscillating floater type wave energy power generation device. The parabolic opening array is arranged on a wave facing surface of the breakwater; waves come from open sea are reflectedto the focal position of each parabolic opening by an opening wall surface, so that wave energy is focused; and floater structures of the oscillating floater type wave energy power generation deviceare arranged at each focal position to maximize the energy which can be captured. The parabolic wave energy utilization type breakwater has the beneficial effects that the parabolic opening array is arranged on the wave facing surface of the breakwater, so that the wave energy can be focused at the focal positions in openings; floaters of the wave energy power generation device are mounted at thefocal points of the openings where the waves are focused so that the captured wave energy is maximized; the wave energy power generation and a breakwater structure are integrated, so that wave can beprevented, and the wave energy can also be collected; and therefore, the cost for constructing the breakwater and the wave energy power generation device is reduced. The novel integrated power generation structure system can be widely applied to the development of wave energy resources.

The invention discloses a rectangular square box breakwater structure, which comprises an anchorage (1), an anchor chain (2), a rectangular square box (3), a vertical-type outer-side wave stopping board (4), a vertical-type wave stopping board (5), an inner-side wave stopping board (6) and a wave stopping wall (7) and the like. A physical model testing device of the rectangular square box breakwater structure comprises the rectangular square box (3), a hoisting ring screw (8), a key ring button (9), a steel wire rope (10), a spring (11), a metal hook (12), a steel wire rope clip screwing off screw (13), an expansion screw (14), a foundation (15), a wave stopping board steel ruler (16), a board (17), a horizontal steel ruler (18), a slider (19) and a wave stopping wall steel ruler (20) and the like. The testing operation is concise, and the cost is lower. The rectangular square box breakwater structure and the physical model testing device are simple in structure, convenient to construct, strong in mobility, good in hydrophilism, less in environmental influence within a port, and are specially suitable for seas with larger water depth; and the wave dissipating effect is promoted to a certain degree.

The invention provides a breakwater structure which comprises a breakwater body. The two sides of the breakwater body are each provided with multiple through through-flow openings. The through-flow openings communicate with a cavity. Multiple transverse concrete walls and vertical concrete walls are arranged in the cavity. A rectangular grid structure is formed by the transverse concrete walls and the vertical concrete walls. A flow guide channel communicating with the corresponding through-flow opening is arranged in each grid. Multiple wave dissipation plates are mounted on the upper inclined face of the breakwater body. The wave dissipation plates are arranged between the grids formed by the transverse concrete walls and the vertical concrete walls. A wave dissipation hole used for wave dissipation is formed in each wave dissipation plate. After the wave dissipation plates are fixed to the transverse concrete walls and the vertical concrete walls, the wave dissipation holes of the wave dissipation plates communicate with the flow guide channels below the wave dissipation plates. The through-flow openings of the two sides of the breakwater body are provided with filter screens. The breakwater structure is convenient to construct and has a good dissipation capacity on waves, garbage floating objects in rivers and seas can be subjected to recovery cleaning, and the waves are prevented from flowing back into the rivers and the seas again.

The invention discloses an anti-resonance breakwater design method. The method comprises the steps of determining an arrangement axis of a vertical wall type structure; obtaining input parameters of the computational domain; discretizing a computational domain through a finite element eight-node isoparametric element method; carrying out wave field simulation through a quasi-Helmholtz equation wave model, and determining a reflection wave field under the frequency domain change of a computational domain; and according to the grating equation, determining the design parameter wave number K and amplitude A of the sine curved surface of the vertical wall type structure. A Laplace equation is solved through an FAT theory, boundary conditions are substituted, a quasi-Helmholtz equation containing wave nonlinearity under the condition that the water depth is not changed is derived, a wave field of a harbor basin is calculated through a finite element method, the grating principle and the quasi-Helmholtz equation wave theory are combined, a breakwater vertical wall section structural form is designed, the size of a vertical wall curved surface is determined, and the wave propagation process is attenuated, and wave propagation is dissipated, so that harbor resonance caused by propagation of incident waves to a harbor basin is reduced.

Disclosed are wave dissipation systems, modular units for use in wave dissipation systems and methods of constructing the same. Embodiments of the present disclosure are directed to the construction of breakwater systems using a plurality of modular elements which can be interlocked to form an elongated breakwall. Each module unit includes a base unit and a lid element. The base unit has a bottom wall, a rear wall, laterally opposed side walls and a front wall which in combination define an energy dissipation chamber. The lid element covers the energy dissipation chamber of the base unit and is disposed on top of the base unit at angle with respect to the bottom wall.

The invention relates to a porous floating breakwater formed by splicing prefabricated components, belonging to the filed of ocean engineering structures. The porous floating breakwater is characterized by comprising main structures formed by splicing hollow prefabricated components in different geometric shapes by longitudinal bridge members; the prefabricated components are closed hollow boxes formed by using an external elastic material to coat an internal rigid material; each box is provided with at least two round holes; a rigid block is fixed in each box, and the round holes penetrate through and are arranged on the rigid block; the surfaces of the prefabricated components are respectively provided with grooves; and the breakwater structure can have lengths in accordance with engineering needs by assembling a plurality of main structures. The invention has the advantages that the design is combined with a plurality of energy dissipation mechanisms, such as reflection resistance, energy peak consumption, turbulence energy consumption, porous seepage energy consumption, and the like, has good wave-absorbing effect, small wave-feeding force, convenient and rapid mounting and easy maintenance and is suitable for use in different water depth ranges.

The invention relates to an anti-seepage short wall simulation device for controlling breakwater foundation piping development and a test method thereof, and belongs to the field of breakwater foundation seepage control. The device comprises a sand tank box, an upstream water level control system, and a data acquisition system for monitoring a test process; a first percolation assembly for dividing the sand tank box into an upstream water inlet chamber and a sand sample filling chamber is arranged in the sand tank box; the top end of the sand tank box is sealed by a detachable cover plate; a piping hole penetrating through the cover plate is formed in the bottom surface, located in the sand sample filling chamber, of the cover plate; an anti-seepage short wall is arranged between the first percolation assembly and the piping hole; the anti-seepage short wall is designed to be provided with various penetration degrees and positions; and side plates and the cover plate of the sand tank box are made of colorless transparent materials. According to the anti-seepage short wall simulation device for controlling breakwater foundation piping development and the test method thereof, the formation and development process of breakwater foundation piping can be visually observed, different control piping development processes under the condition of the anti-seepage short walls with different penetration degrees and positions can be visually observed, and the situation is compared with a piping damage situation under the condition of no anti-seepage short walls.

The present invention discloses a quickly-detachable airbag-type floating breakwater, including a plurality of water wave absorbing structure units arranged along a length direction of the breakwater. The adjacent water wave absorbing structure units are connected by a connecting unit. The water wave absorbing structure unit comprises at least two floats arranged side by side and a wave absorbing plate located between the floats. The water wave absorbing structure unit comprises at least two floats arranged side by side and a wave absorbing plate located on the floats. The connecting unit comprises bases located at the ends of the floats, an airbag located between the adjacent bases, and a steel chain, the adjacent bases wrapping the airbag to form a buffer connecting structure. Adjacent water wave absorbing structure units can be quickly and conveniently assembled by a connecting unit, thereby simplifying the difficulty in a breakwater building and construction installation process, improving the post-maintenance convenience of the breakwater, and reducing the post-maintenance cost. The connecting unit adopting a buffer connecting structure formed by wrapping the airbag with the bases can effectively alleviate movement, extrusion and torsion between adjacent breakwaters.

The invention discloses a phytoecological floating breakwater which comprises a wave-absorbing floating body and anchoring equipment, wherein a planting platform is arranged at the upper part of the wave-absorbing floating body; a floating-aid cavity is arranged at the lower part of the wave-absorbing floating body; a groove is upward formed in the planting platform and filled with soil; wave-resistant plants with wave-resistant and soil-fixation functions are planted in the soil; water inlet-outlet channels communicating with the outside world are arranged at the lower part of the planting platform; water inlet-outlet ports communicating with the water inlet-outlet channels are arranged at the bottom of the groove; water-passing and soil-conserving parts used for allowing seawater to passand preventing the soil from passing are arranged at the water inlet-outlet ports; the anchoring equipment comprises anchors and cables; and the cables are connected between the anchors and the wave-absorbing floating body. The phytoecological floating breakwater adopts the structural form that the plant-based wave-resistant function and the structural wave-resistant function are combined, so that not only can a good wave-resistant effect be achieved, but also the national ecological development demand can be met.

The invention discloses an automatic multifunctional culvert type breakwater suitable for a high sand content sea area and a design method and a scouring and silting method thereof. The breakwater comprises a breakwater main body, a culvert, a turbine, a high pressure water pipe, a tide gauge and a numerically controlled valve. The breakwater solves the problems that internal and external water cycles of the breakwater in part of high sand content sludge sea areas in China are closed, the water quality is poor and the sediment is accumulated by means of characteristics of a tide and sediment suspension. According to theoretical derivation and numerical experimentation, it is found that the tide will form a stream of vibrating water flow with a huge flow in the culvert of the breakwater toplay an important role on water exchange in a harbor. Position of the culvert has less influence on size of the flow. The automatic multifunctional culvert type breakwater has the characteristics of being simple to construct, economical and environment-friendly, wide in applicability and the like, and improves the water quality while preventing waves so as to reduce accumulation of the sediment. In addition, the breakwater forming a circulatory system is more intelligent.

The invention discloses a method for calculating the bearing capacity of a suction pile foundation of an offshore construction platform. The calculation method comprises the following steps: calculating the penetration resistance of the suction pile foundation in cohesive soil, cohesionless soil and a layered soil layer, calculating the bearing capacity, calculating the structural strength and stability of a barrel body, and selecting related parameters. The penetration construction process of the suction barrel is controlled by accurately estimating the penetration resistance in the negative pressure penetration process and controlling the negative pressure. The successful design and application of the suction pile foundation open up prospects for application and development of offshore structure mooring systems, suction anchors, anti-sliding piles of pull-type mat platforms, breakwaters, platform foundations and offshore wind power foundations in the future.

A breakwater, in which the surface thereof facing the sea (H) is a curved surface rendering the cross section of the breakwater a trapezoid with curved side (ABCDEFG) which comprises a shorter top side (EF), a longer bottom side (AG), and a curved side (ABCDE) facing the sea (H). The curve profile is similar to a recumbent concaved-up parabola.

The invention relates to an ecological geotube submerged breakwater which comprises ecological geotubes, filled woven bags and protection blankets. The protection blankets are laid on a riverbed parallel with a dike dam of a river bank, the ecological geotubes and the filled woven bags are filled with sand and soil, each protection blanket is provided with three ecological geotubes shaped like a Chinese character 'pin', the ecological geotubes axially adjacent in an end-to-end mode are stacked in an end-to-end staggered connection mode, and the filled woven bags are stacked in seams among the three ecological geotubes of each protection blanket. The ecological geotube submerged breakwater can resist repeated impact of water currents, wind and waves for a long time, the ecological ecotubes are filled with sand and soil and are stacked, the submerged breakwater which is high in strength, quality and density and not prone to collapsing can be formed, relatively stable ecological environment of plants in a water body of the river bank can be maintained, influences of the wind and waves on the plants in the water body of the river bank are reduced, and underwater conditions are stabilized. Meanwhile, due to the stacking method, needed materials are simple, the stacking efficiency is high, and the stacked submerged breakwater can resist erosion of wind, waves and water currents and is not prone to deforming and collapsing and high in operability.

The invention discloses a laboratory simulation device and method for an offshore floating island-wave prevention-anchoring system. The laboratory simulation device comprises a water pool, a tray is rotationally mounted in the pool; a floating island module is arranged in the center of the pool surface; the floating island module is fixedly connected with the anchoring ring through a plurality of anchor chains; breakwater modules are arranged around the floating island module; the breakwater module is fixedly connected with the anchoring ring through a plurality of anchor chains; a wave simulation module and an ocean current simulation module are arranged in the circumferential direction of the inner side wall of the pool; a plurality of wind field simulators are fixedly mounted on the roof above the pool; the wind field simulator faces the floating island module; a plurality of floating island units and breakwater units are combined, and an ocean current simulation module, a wave simulation module and a sea wind simulation module are added at the same time; a plurality of different ocean conditions can be simulated at the same time, so that the simulated ocean environment is more real; therefore, more accurate data can be obtained when people research the artificial floating island.

The invention discloses a mangrove forest and submerged breakwater coupled ecological breakwater, and belongs to the field of coastal engineering. The mangrove forest and submerged breakwater coupledecological breakwater is characterized in that a traditional breakwater structure is innovatively coupled with a mangrove forest, a plurality of submerged breakwaters are periodically arranged at intervals, breakwater core stones, dimension stones, backfill soil and protective surfaces are sequentially laid in the breakwaters, and due to the existence of the submerged breakwaters, the vertical elevations of plants are changed in a staggered mode. The mangrove forest is composed of a tree crown, a tree stem and a tree root, the canopy with the most remarkable wave absorbing capacity is lifted,and therefore the effective wave absorbing water level is increased. Under the action of waves and tide, through the mode, the mangrove forest can generate more shearing layers, and the wave-absorbingand flow-resisting effects are enhanced; and the wave absorbing capacity of the submerged breakwater to surface waves can be enhanced through the mangrove forest, and the damage effect of extreme seaconditions such as storm surge on the submerged breakwater is weakened. The mangrove forest and the submerged breakwater are coupled, the occupied area is reduced, a win-win situation is achieved bycombining the wave absorbing characteristics of the mangrove forest and the submerged breakwater, meanwhile, environmental protection is achieved, and economic value and ecological significance are achieved at the same time.

The invention discloses a rounded-rectangle-shaped suction foundation and steel sheet pile combined breakwater structure. The structure is formed by connecting a plurality of single set structures. Each single set structure is composed of an upper portion and a lower portion, wherein the lower portion is composed of a rounded-rectangle-shaped thin-wall foundation, internal parting walls and coverplates, the cover plates are arranged on the upper surface of the rounded-rectangle-shaped thin-wall foundation, a ventilating water valve is arranged on the cover plate corresponding to each partingcabin, a single set or a plurality of sets of steel insert grooves are pre-buried in the outer wall of the rounded-rectangle-shaped thin-wall foundation, and steel sheet piles are arranged in the steel insert grooves; and the upper portion is composed of an inner cup opening ring beam, an outer cup opening ring beam and a wave retaining cylinder, the inner cup opening ring beam and the outer cup opening ring beam are fixed to the upper surface of a rectangle in the middle, the bottom ring of the wave retaining cylinder is fixed into a ring shape between the inner cup opening ring beam and theouter cup opening ring beam, and lap-joint lugs are arranged on the wave retaining cylinder. The single set structures which are arranged adjacently are connected through the adjacent steel sheet piles. The rounded-rectangle-shaped suction foundation and steel sheet pile combined breakwater structure has the advantages that recycling is achieved, no foundation needs to be excavated, and accordingly, the environment is protected.

The invention relates to a breakwater ecologicalization method, in particular to an on-service ocean breakwater ecologicalization method, and belongs to the field of ocean perphyton and ocean ecological engineering interdisciplinary combination. The on-service ocean breakwater ecologicalization method comprises the steps of: (1) sea area investigation in a building position of a concrete structure; (2) preparation of a concrete substratum; (3) quantitative acquisition and culture of oyster seedlings; (4) surface cleaning of a breakwater; (5) brushing and curing of paint; (6) scene placement ofan oyster substratum; (7) monitoring of larva attachment; and (8) adding and management of nutrient substances. Through cleaning of the on-service breakwater and fixed placement of the stratum attached with oysters around the breakwater, the compact oysters are attached on the on-service breakwater more quickly; and through the characteristic of using the oysters as engineers and the effects of purifying water and improving a water area, high ecologicalization of the on-service breakwater is achieved, and the purposes of ecologicalization and long-time on service of the breakwater are achieved.