549results about "Breakwaters" patented technology

The invention relates to the construction technology of a hoop bottom die, and discloses a hoop bottom die integrated quick-mounting system which comprises a bottom die plate arranged on the outer side of the end of a vertical pile, and the bottom die plate is used for side die erecting and pouring forming positioning of a vertical pile cap; the main beam and the secondary beam are fixed to the bottom of the bottom formwork, first transverse rib plates and second transverse rib plates are fixed to the main beam and the secondary beam respectively, and a fastening and locking buckle assembly is arranged between the first transverse rib plates with the ends in butt joint; the hoop body is arranged at the end of the vertical pile in a sleeving mode through a bolt, hoop pressure-bearing ribs used for bearing and supporting the bottom formwork and the main beam are arranged on the side of the hoop body, and a hoop guide chain which is integrally detached in a hoisting mode is further arranged between the outer side of the hoop body and the secondary beam. According to the hoop and bottom die integrated quick assembly system, bottom die integrated quick assembly and disassembly construction of double-pile and single-pile cap construction operation can be achieved, secondary bottom disassembly during disassembly is not needed, and the die erecting and pouring efficiency of pile cap construction is improved.

The invention relates to a breakwater structure for wave power generation and a construction method of the breakwater structure. The breakwater structure comprises a lower barrel body, an upper caisson and a power generation device. A compartment is arranged in the upper caisson, and the power generation device is installed in the compartment. A wave inlet hole is formed in the wave facing side of the upper caisson, a cast-in-place adjusting node is arranged on the top of the upper caisson, and a wave wall, a cable pipe trench, a detachable road plate and an overhauling device are sequentially arranged above the node. The breakwater structure and the wave power generation system are integrated by adopting standard barrel type foundation factory prefabrication and floating transportation installation and combining cast-in-place joint leveling and the detachable road plates. The structure has the advantages of being convenient to construct, controllable in cost, stable in structure, convenient to maintain and the like, is suitable for wave power generation under medium and small wave conditions, and is particularly suitable for green power supply and coast protection in areas such as ports and islands.

The invention discloses a semi-cylindrical shell floating breakwater with a multi-stage energy dissipation and vibration reduction and flexible mooring system, and belongs to the technical field of ocean engineering. The breakwater aims at solving the technical problems that an existing floating breakwater is limited in energy dissipation efficiency under the complex sea condition, the overall motion response is violent, and the stress of an anchoring system is too large. The breakwater comprises a floating body unit which is provided with a semi-cylindrical shell and a floating box, and a plurality of rows of wave dissipation holes are formed in the head wave side of the shell; the energy dissipation and vibration reduction system is arranged below the buoyancy tank and comprises a vertical connecting rod, a horizontal through hole vibration reduction heaving plate, a first vibration reduction damper arranged on a section of the vertical connecting rod and a vertical through hole wave dissipation plate; and the flexible anchoring system comprises an anchor block arranged on the seabed, an anchor chain for connecting the anchor block and the floating box, and a second vibration reduction damper arranged on the anchor chain. The breakwater is mainly used for wave protection and energy dissipation in ports, coast and offshore engineering areas.

The invention relates to the technical field of wharf structures, and discloses a wharf structure reinforced by basalt fiberboards, which comprises a pile foundation, a pile cap mounted at the top of the pile foundation, a prefabricated cross beam mounted at the top of the pile cap and a panel mounted at the top of the cross beam, an insertion groove for insertion of the insertion plate is prefabricated in the top of the pile cap, a first prefabricated hole is prefabricated in the insertion plate, second prefabricated holes are prefabricated in the two sides of the insertion groove, a split bolt is arranged in the first prefabricated hole, and the two ends of the split bolt are located in the two second prefabricated holes correspondingly and are in threaded connection with limiting nuts correspondingly; basalt fiber boards are prefabricated at the bottoms of the cross beams and abut against the pile caps. The stability of the wharf structure can be improved.

The invention relates to the technical field of port engineering foundation treatment and wharf structure reinforcement, and discloses a port high-pile wharf pile foundation reinforcement structure suitable for a soft soil foundation, which comprises a pile foundation body and a bearing platform mounted on the pile foundation body, and further comprises a main steel pipe pile arranged in the side direction of the pile foundation body in a driving manner, the pile top elevation of the main steel pipe piles is lower than the bottom face of the bearing platform, the root key pipes are hollow steel pipes, and the inner ends of the root key pipes are connected with different elevation positions of pile bodies of the main steel pipe piles. The foundation bearing capacity can be improved, and pile foundation settlement is reduced; the radiation root key pipe and the pile top connection node can reduce the horizontal displacement of the pile body, disperse the bending moment and prevent damage; and disturbance of construction to soft soil is small, operation can be conducted in wharf operation gaps, and safety and long-term stability of the wharf structure are comprehensively guaranteed.

The application provides a reservoir drawdown zone suitable habitat construction and precise vegetation restoration method, which comprises the following steps: S1, reservoir drawdown zone habitat suitability analysis; S2, reservoir drawdown zone vertical function partition; S3, microtopography regulation; S4, vegetation restoration species selection and partition function configuration. The application fully considers the reservoir periodic flooding rhythm and site environment difference, combines the partition prominent problems, screens the tree-shrub-grass vegetation, and optimizes the partition configuration, so that the functions and benefits such as soil fixation, bank protection, sand interception, pollution interception, water quality protection and biodiversity maintenance are maximized.

The invention provides a permeable breakwater and a design method thereof, and relates to the technical field of permeable breakwater. Aiming at the lack of a design method for high-precision environment coupling and high-accuracy structure stress prediction during design of a permeable breakwater in the prior art, the method comprises the following steps: establishing a wave-structure-foundation coupling model based on structure stress data, environment soil characteristics and a transmission coefficient of waves; s5, selecting a wave-structure-foundation coupling model, simulating different structure parameter combinations based on the wave-structure-foundation coupling model, and when the simulation results do not meet the target requirements, circularly executing the steps S2 to S5 until the simulation results meeting the target requirements are screened out, and determining a corresponding final structure parameter combination. The cooperative working mechanism of the reduction foundation and the pile foundation is realized, the dynamic interaction of the wave load and the structural response is simulated, and the environmental coupling precision and the structural stress prediction accuracy are improved.

The utility model discloses a large-size cast-in-place concrete splicing formwork. The large-size cast-in-place concrete splicing formwork comprises a formwork body, a plurality of hanging rods and a plurality of sets of splicing assemblies. The plurality of hanging rods are vertically arranged and are fixed on the inner side plate surface of the template body at equal intervals; the lifting rod comprises a longitudinal beam and a lifting lug arranged on the top side of the longitudinal beam; the splicing assembly is composed of an outwards-convex connecting part, an inwards-concave connecting part and a fastening connecting piece. The outwards-convex connecting parts and the inwards-concave connecting parts of the multiple sets of splicing assemblies are arranged on the edges of the left side and the right side of the formwork body at intervals in a one-to-one correspondence mode and fixedly connected in an embedded fit mode. According to the formwork, the suspenders and the splicing assemblies are additionally arranged, so that the structural strength of the formwork and the bonding strength of the formwork and concrete are enhanced, and deformation during later concrete pouring is avoided; and meanwhile, rapid and gapless high-quality connection of the two formworks can be achieved through the splicing assembly, and the problem of grout leakage during later concrete pouring is effectively avoided.

The utility model provides a protective net for water and soil conservation, which comprises a side edge adjusting structure, the side edge adjusting structure comprises an attaching plate and a supporting strip, one side of the bottom of the attaching plate is provided with a fixing bolt, the bottom of the attaching plate is provided with a sliding block, the top of the supporting strip is provided with a positioning strip, and the inner wall of the positioning strip is provided with a sliding groove. According to the protective net structure, the attaching plates capable of sliding outwards are arranged, the attaching plates slide on the tops of the supporting strips, the attaching plates on the two sides move outwards and open the protective net, the protective net structure can be tightly attached to a river bank, and outward movement of the attaching plates is mainly controlled through an unfolding structure; and after use, the attaching plate can be fixed, then the unfolding structure is taken down, and meanwhile, the positioning cone capable of rotating is arranged at the bottom of the supporting strip, so that the supporting strip can rotate according to the radian of the river bank.

The application discloses a kind of slice stone concrete retaining wall concrete pouring and slice stone throwing device and its using method, device includes movable sliding platform, movable support platform, pouring pipe and chute, pouring pipe is set on support platform, and pouring pipe is provided with feeding port;The chute is obliquely arranged, and its upper end is connected with sliding platform, and its lower end is connected with the feeding port of pouring pipe;The pouring pipe includes multiple fixed sections, and every two adjacent fixed sections are connected by connecting section, the connecting section has multiple connecting pieces, the connecting piece has open state and closed state, in the open state, adjacent fixed section is disconnected at the connecting piece, and the counter-bolt of retaining wall formwork can pass through the connecting piece, in the closed state, adjacent fixed section is connected together by the connecting piece;The present application can realize mobile pouring concrete and slice stone throwing, with the advantages of simple operation, less labor consumption and worker labor intensity.

A floating quay 202 includes a deck 204 relocatable in a body of water 122 adjacent a stationary quay 200 to receive one or more floating units 102. The deck includes a gradual slope from an elevation

The application discloses a bionic seaweed type piezoelectric ceramic power generation grid for fixed breakwater, relates to the technical field of wave power generation, and comprises a wave absorbing box, piezoelectric ceramic seaweed, a counterweight assembly, a top anchoring mechanism and a wiring terminal. The wave absorbing box is a square box with an open front side. A grid frame arranged in the wave absorbing box forms a plurality of tunnel cavities in a square array in the interior of the wave absorbing box. The rear ends of the tunnel cavities in the same column are connected and communicated through through cavities in the interior of the wave absorbing box. The inner sides of the tunnel cavities and the through cavities are each provided with a plurality of piezoelectric ceramic seaweed. The piezoelectric ceramic seaweed in the tunnel cavities is mounted on the bottom surface thereof, and the piezoelectric ceramic seaweed in the through cavities is mounted on the rear side wall thereof. The piezoelectric ceramic seaweed realizes power generation through swinging under the action of tidal water flow. The application can be produced in a modular way, has low manufacturing cost, is convenient to install and replace, can realize the scour resistance of the breakwater, and can realize the self-sufficiency of power supply for local power utilization by utilizing tidal energy.

The utility model relates to the technical field of ocean engineering, in particular to a double-layer perforated plate flow guide breakwater which comprises a connecting pile and a double-layer perforated flow guide plate. Each connecting pile comprises a pile cap, a pile body and a cattle foot; the two groups of double-layer perforated guide plates are arranged in parallel front and back, each group comprises a plurality of perforated guide plates, each perforated guide plate is provided with a plurality of holes, the perforated guide plates in each group are connected into a whole side by side through the connecting piles, and the connecting piles are positioned on two sides of the perforated guide plates. According to the structure, through the optimized design, the wave dissipation effect and the structural stability of the breakwater are improved, and meanwhile the construction difficulty and cost are reduced. The structure is particularly suitable for ports, wharfs and coastal protection in the marine environment.

The application discloses a small and medium scale meandering river multi-stage biological habitat system, and the river has a convex bank and a concave bank which are oppositely arranged, and further comprises: a water-permeable flow guide unit which is arranged on the convex bank of the river and extends into the river, and is used for guiding the water flow direction and reducing the water flow speed; a deep pool habitat unit which is formed downstream of the concave bank opposite to the water-permeable flow guide unit; and a shoal habitat unit which is formed downstream of the convex bank on the leeward side of the water-permeable flow guide unit; wherein the deep pool habitat unit is arranged with a second habitat substrate group, and the surface of the shoal habitat unit is arranged with a first habitat substrate group. The application further discloses a construction method of the small and medium scale meandering river multi-stage biological habitat system, the water flow is guided and utilized by the water-permeable flow guide unit, the deep pool habitat unit and the shoal habitat unit are shaped, the interference to the natural environment is small, and the multi-stage biological habitat system is constructed through the arrangement of the second habitat substrate group and the first habitat substrate group.

The application discloses a riverway wood pile revetment construction method, which comprises the following steps: setting a base surface, manufacturing and fixing a water-retaining steel plate, manufacturing piles, pressing piles, setting a waterproof layer and anchoring connecting piles, and connecting the piles with pine piles through a pull rod and backfilling in layers to form a stable, solid, durable and long-lasting revetment structure. The steel plate and the wood piles are arranged along the riverbank in the revetment structure, and the wood piles are fixed to the structure of the connecting piles through the pull rod, which increases the connection between the wood piles, improves the overall strength and stability of the steel plate and the wood piles, strengthens the force of the revetment, improves the fixing strength of the wood piles, and makes the wood piles not easy to be washed away by the water flow.

The invention discloses a revetment building block combination and a revetment stacking structure based on the revetment building block combination. The revetment stacking structure comprises a bottom layer and a plurality of stacking layers. The bottom layer is composed of a plurality of parallel bottom layer rows, each bottom layer row is composed of a plurality of bottom layer building blocks which are arranged side by side in the length direction and laid in the length direction of the bottom layer, and the bottom layer building blocks of each bottom layer and the adjacent bottom layer building blocks of the adjacent row are staggered in the positions opposite to the length direction of the bottom layer; each stacking layer starts at the same position in the length direction of the bottom layer and is composed of a plurality of stacking rows, each stacking row is composed of a plurality of stacking layer building blocks which are arranged side by side according to the length direction, and the stacking layer building blocks are laid on the bottom layer row or the stacking row on the lower portion in the length direction of the bottom layer; the stacking layer building blocks of each stacking layer and the bottom layer building blocks of the bottom layer row below are staggered in the positions relative to the length direction of the bottom layer, and the trapezoidal protrusions on the stacking layer building blocks are embedded in the trapezoidal grooves of the corresponding bottom layer building blocks below or the stacking layer building blocks.

The utility model discloses a double-pile type L-shaped embankment structure which comprises pile foundations, a concrete cushion layer, an L-shaped wall body, handrails, a broken stone cushion layer and grouted rubble. The pile foundation is driven into an original embankment foundation, the concrete cushion layer is laid on the original embankment foundation, the L-shaped wall body is arranged on the concrete cushion layer, the upper end of the pile foundation penetrates through the concrete cushion layer into the L-shaped wall body, the side, close to a riverbed, of the L-shaped wall body is connected with the broken stone cushion layer, and the broken stone cushion layer is arranged on the riverbed. The rubble hardcore is provided with grouted rubble; backfill soil is arranged on the side, away from the riverbed, of the L-shaped wall body, and a road is arranged on the backfill soil; and the handrails are arranged on the L-shaped wall body. The double-pile type L-shaped embankment structure provided by the utility model aims to overcome the existing defects, is stable in structure, convenient to construct and low in manufacturing cost, and ensures the protection function of the embankment.

The present application belongs to the technical field of port machinery roll-on roll-off operation, and particularly relates to a wharf double-layered cross-shaped roll-on roll-off track, a wharf roll-on roll-off transportation system based on the wharf double-layered cross-shaped roll-on roll-off track, and a wharf roll-on roll-off operation method. The cross-shaped track comprises: a plurality of load-bearing partitions, each of which is arranged on a wharf pile foundation; a plurality of bottom guide rails, which are laid on the ground of the wharf and have a gap between the bottom guide rails and the ground of the wharf through the load-bearing partitions on the wharf pile foundation, so that the stress of the bottom guide rails is transmitted to the wharf pile foundation through the load-bearing partitions; and upper guide rails on which roll-on roll-off operation vehicles travel, which are in sliding connection with the bottom guide rails and form a cross-shaped guide rail structure; and each of the upper guide rails is provided with a sliding groove for sliding connection with the bottom guide rail, and a jacking assembly for abutting guide rail jacking operation is arranged at the sliding groove of the upper guide rail. The present application can realize safe and reliable roll-on roll-off operation of port machinery equipment on the existing pile foundation wharf, and reduce the hoisting operation cost during roll-on roll-off.

The utility model relates to the technical field of wharfs, in particular to a novel zero-carbon wharf which comprises a wind driven generator, an energy storage device, a wave energy power generation device, a distributed photovoltaic panel and production and living electric equipment. The wind driven generator, the wave energy power generation device and the distributed photovoltaic panel convert wind energy, wave energy and solar energy into electric energy and store the electric energy in the energy storage device. The energy storage device supplies power to wharf production and living electric equipment; according to the zero-carbon wharf, renewable power generation facilities are adopted for collecting clean energy and converting the clean energy into electric energy to be supplied to the wharf, the clean energy is efficiently utilized, dependence on traditional energy is reduced, and self-sufficient and self-use of the wharf energy is achieved; power equipment such as wharf loading and unloading equipment and transportation machinery is adopted, energy is supplied to ships berthing to the harbor through the shore power system, the problem of tail gas emission is solved, meanwhile, the environmental noise of the wharf is reduced, and zero carbon emission of the wharf in the operation process is achieved.

This invention discloses a seawall toe reinforcement structure and its construction method, relating to the technical field of seawall reinforcement. It includes a wave-blocking component comprising flow-blocking piles located on the water-facing side of the seawall; wave-blocking plants; and floating components located on top of the flow-blocking piles, with the wave-blocking plants planted on the floating components. A limiting component is also included, with one end fixedly connected to the floating components and the other end for rotatable connection to the seawall. The flow-blocking piles reduce the scouring power and delay the scouring time of wind and waves, while the wave-blocking plants also block and delay wind and waves, improving the aesthetics and environmental friendliness of the seawall. The limiting component enhances the overall performance of the seawall, the wave-blocking component, and the wave-blocking plants. This application effectively reinforces the seawall toe and improves the seawall's resistance to wind and wave scouring.

The utility model provides a kind of ecological reconstruction structure suitable for hard embankment, it is related to the technical field of river embankment reconstruction, including lattice structure, scour protection structure, planting structure and embankment structure, both ends of lattice structure are connected with embankment structure, lattice structure is provided with grid structure, and lattice structure is used to lay along embankment slope;Scour protection structure is connected with the side of lattice structure away from embankment slope, and the side of scour protection structure away from lattice structure is connected with planting structure.The utility model alleviates the technical problem that concrete embankment structure in prior art is wasted due to removing all concrete when being reconstructed, and embankment stability and ecology are also easily considered.

The application discloses an assembled sheet pile structure which is composed of fixed sheet piles and spliced sheet piles; the fixed sheet pile is composed of a fixed sheet pile body and a connecting sleeve one, and the connecting sleeve one is arranged with two upper portions which are vertically fixed to the middle of the inner side surface of the fixed sheet pile body; one of the fixed sheet piles can be equipped with multiple spliced sheet piles; the length of the fixed sheet pile and the spliced sheet pile is relatively short; the fixed sheet pile is easy to be punched into the foundation, and the fixed sheet pile is not easy to be bent; the spliced sheet pile is easy to be assembled to the top of the fixed sheet pile; the fixed sheet pile and the spliced sheet pile are connected through the cooperation of the connecting sleeve one and the connecting rod; the spliced sheet pile and the spliced sheet pile are connected through the cooperation of the connecting sleeve two and the connecting rod; and the application is simple to disassemble and assemble, and the sheet pile is not easy to be bent.

The utility model relates to the technical field of water conservancy flood control embankment structures, in particular to a water conservancy flood control embankment structure which comprises a protection slope and a concave plate, the right side of the top of the protection slope is fixedly connected with the bottom of the concave plate, a plurality of vertical plates are fixedly connected to the top of the inner wall of the concave plate, and the bottoms of the vertical plates are fixedly connected with the top of the protection slope. The right side of the protection slope is connected with a protection structure, and the inner wall of the protection slope is connected with an anti-seepage structure. According to the protection structure, the bottom of an inclined plate and the top of the slope protection are fixed through mortar, at the moment, a curved block on the outer wall of the inclined plate faces outwards, the curved block changes an original sandbag material through a concrete material of the curved block, the concrete has high cavitation corrosion resistance, meanwhile, fracture damage is avoided, and a curved plate on the top of the inclined plate can prevent waves from rushing onto the slope protection; the protection effect of the water conservancy flood control embankment structure is improved, and the use limitation is eliminated.

The invention relates to the technical field of high-pile wharf construction, and discloses a high-pile wharf lower cross beam construction method and structure. The method comprises the steps that a U-shaped bottom shell is prefabricated in a prefabrication factory according to a pile foundation top structure; a supporting structure composed of a steel hoop, I-shaped steel and a wedge-shaped cushion block is constructed on the pile foundation; lowering a reinforcement cage into the pile foundation and pouring; the bottom shell is hoisted to the supporting structure and fixedly connected; binding a lower cross beam reinforcement framework and pile top reinforcing steel bars in stages; binding a wet joint reinforcement cage; installing a template and pouring concrete to form the lower cross beam. The structure comprises a pile foundation, a supporting structure and a plurality of bottom shells, the bottom shells are connected through wet joints, and a lower cross beam steel reinforcement framework is pre-buried in stages and bound on site. Through combination of prefabrication and cast-in-place, the supporting system is simplified, the construction efficiency, safety and quality are improved, the cost is reduced, and the method is suitable for various pile types such as straight piles and inclined piles.

The invention discloses an offshore self-propelled bulwark pipe gallery integrated construction platform, and relates to the technical field of bulwark pipe gallery construction.The offshore self-propelled bulwark pipe gallery integrated construction platform comprises a buoyancy tank base unit which has the self-propelled capacity and can be anchored at a fixed point, and an operation auxiliary unit which can adjust the operation position and conduct auxiliary supporting is arranged on the top face of the buoyancy tank base unit; the buoyancy tank base unit comprises a buoyancy tank, a movable support which is folded and stored is arranged on the bottom face of the buoyancy tank, and a jet propeller which can adjust the jet angle and then change the advancing direction is arranged on the bottom face of the buoyancy tank. By means of the switchable structural design of sailing storage and operation unfolding anchoring, the industrial defects that a floating construction carrier on the sea is greatly disturbed by sea waves, the operation datum is unstable and the anchoring and transition efficiency is low are fundamentally overcome, a buoyancy tank platform which originally floats along with the waves is converted into a rigid stable operation datum which is anchored to the seabed and similar to the land, and therefore the service life of the buoyancy tank platform is prolonged. Core guarantee is provided for precise construction of an upper operation unit, and meanwhile the efficient circulation requirement of multi-section continuous construction is met.

This invention provides a circular caisson resonant pool combination structure, comprising an upper circular caisson, a lower circular caisson, and a resonant pool. The upper and lower circular caissons are stacked, with the resonant pool positioned on their rear sides. The wave-facing sides of both the upper and lower circular caissons are arc-shaped curved surfaces, and the top-view outline of the upper caisson overlaps that of the lower caisson. Along the wave-facing direction, the upper and lower circular caissons are staggered with the resonant pool. This invention, through its two-layer stacked circular caisson and resonant pool combination structure, achieves superior stress performance, reduces wave reflection, and significantly weakens wave energy accumulation through scattering, maintaining a stable harbor surface. Addressing the strong penetrating characteristics of medium- and long-period waves, the resonant pool allows the internal fluid to approach a resonant state, utilizing fluid viscosity and vortex structures to dissipate wave energy, further enhancing the wave-damping effect.

The utility model relates to a shutter type ecological pile which comprises a pile body, the pile body is provided with a top and waist portions located on the left side and the right side of the top and extending downwards and outwards, and the top and the waist portions jointly define a forward groove portion arranged in the length direction. The ecological pile is characterized in that a plurality of partition parts which are arranged at intervals in the length direction of the forward groove part are formed at the end, close to the pile head, in the forward groove part, and all the partition parts are obliquely arranged downwards from outside to inside, so that an ecological cavity is formed in the position, above each partition part, in the forward groove part; a communicating hole for communicating the ecological cavity with the outside is formed in the waist part. A plurality of ecological cavities which are vertically arranged at intervals are formed in the forward direction of the pile body and can be used as places for more animals such as fishes and shrimps to inhabit, the places are independent from one another, communicating holes for communicating the ecological cavities with the outside are formed in the waist, and water and soil interchange of a bank is facilitated.

The utility model discloses a plain river network reciprocating flow choking and guiding device, which relates to the field of river channel guiding facilities and comprises a plurality of guiding plates arranged on two sides of a river channel bank, the appearance of each guiding plate is in a Tesla valve shape, and all the guiding plates are arranged on the river channel bank in the same direction; the fixed seats are arranged in one-to-one correspondence with the guide plates, and the fixed seats are arranged on the bank of the river channel; one end of the fixing frame is rotationally arranged on the fixing seat, and the other end of the fixing frame is connected with the flow guide plate; according to the device, a simple flow blocking-guiding structure is constructed in a plain river network area by utilizing a Tesla valve principle, so that the flow direction of a river channel water body can be controlled under a certain hydrological condition, accurate prevention and control of a protection area can be realized, and the flow blocking-guiding structure has the characteristics of simplicity in design and construction, low economic cost, good prevention and control effect and the like.

The utility model discloses a surrounding net protection device for an external mangrove cleaning area. The surrounding net protection device comprises a wave dissipation plate, a guide rod, a sliding rod, a connecting transverse rod, a blocking net, a blocking piece, a longitudinal mounting rod, a cage body and a floating body. The blocking net adopts a lagging type floating design, so that floating garbage can be blocked outside the blocking net all the time and is not influenced by rising and falling tide; after flood tide, the lower portion of the blocking net provides a passage for organisms, after ebb tide, the device does not affect passage of benthonic animals, and ecological restoration of a cleaning area is facilitated.

The present invention provides a water body structure, a method for installing a breakwater structure, and a breakwater structure, which do not require the removal of the superstructure of existing water body structures during installation. [Solution] A water body structure 70 comprising an existing water body structure 100 having a plurality of piles 102 and a superstructure 104 supported by the plurality of piles 102, and a wave break structure 10, wherein the wave break structure 10 has a plate member 12 and a first enclosure 14A and a second enclosure 14B that jointly surround the circumferential surface of a portion of the longitudinal area of ​​the piles 102, the first enclosure 14A being attached to one side of the plate member 12, the first enclosure 14A and the second enclosure 14B being configured to be attachable from the side to the circumferential surface of a portion of the longitudinal area of ​​the piles 102, and the wave break structure 10 being attached to the piles 102 of the existing water body structure 100 such that the plate member 12 is located at the outer edge of the existing water body structure 100 and the front surface of the plate member 12, which is the surface opposite to the aforementioned one side, faces the water body side.