36 results about "Coastal engineering" patented technology

This invention belongs to the field of coastal engineering and ecological restoration technology. It discloses a method for optimizing the design of beach ecological restoration trenches based on hydrodynamic simulation. The method includes: collecting beach hydrological datasets, topographic datasets, and ecological datasets, and preprocessing them. The hydrological dataset includes wave data, tidal current data, storm surge data, and sediment transport data. The topographic dataset includes shoreline slope, beach elevation, underwater topography data, and sediment source storage data. The ecological dataset includes tidal flat vegetation distribution, benthic organism density, ecologically sensitive area range, and water environment quality data. This invention, through the coupled processing of hydrological, topographic, and ecological multi-source datasets, obtains hydraulic reference values ​​and topographic adaptation values ​​for the trench, directly reflecting the regional dynamic conditions and the degree of topographic adaptation, significantly reducing the workload of manual calculation and trial and error.

The invention discloses a soft soil revetment design method considering wave influence, and belongs to the technical field of coast engineering. The method comprises the following steps: analyzing wave elements and load data by simulating tide and wave propagation, and determining main factors influencing the deformation and stress of a revetment structure; non-linear characteristics of soft soil are simulated, and a stress path of a soil body under the action of a wave load is considered; finite element software is adopted to establish a bank protection structure model, and factors of interaction, large deformation and contact problems of the structure and a soil body are considered; through data simulation, the influence of the wave height and the wave moment on the stress and deformation of the structure is clarified; and dynamic data of the environment where the bank protection project is located is fed back to numerical simulation of the bank protection structure, and input parameters of the model are continuously updated, so that the model can dynamically reflect changes of actual project working conditions. The wave load and soft soil coupling effect can be accurately reflected, the accuracy, safety and economical efficiency of revetment design are improved, and the method is suitable for various soft soil foundation revetment projects.

This invention discloses a method for identifying multiple wave breaking events in numerical calculations, belonging to the field of fluid dynamics in marine engineering. The method includes: determining saturated breaking wave state indices, modifying the wave energy dissipation expression, and constructing a cyclical discrimination logic combining critical breaking wave height and critical recovery wave height. This invention can accurately capture the multi-peak wave height characteristics during multiple wave breaking events, accurately reproduce the bimodal morphology of coastal current velocity profiles, significantly improve the accuracy of numerical simulations of wave propagation and nearshore circulation on gently sloping coasts, and provide reliable technical support for coastal engineering design, sediment transport prediction, and pollutant diffusion simulation.

This application discloses a method and system for assessing extreme environmental conditions in coastal engineering, relating to the fields of marine and coastal engineering technology. The method includes: establishing wave propagation deformation conversion relationships; performing quality control on multi-source wave-tide data; performing tidal level decomposition on the total water level time series; identifying multiple independent extreme wave-tide coupling events, extracting characteristic parameters to form a multi-dimensional extreme sample set, and establishing a joint distribution model; determining the target probability level and constructing an environmental profile with equal exceedance probabilities; selecting representative combined operating conditions, and using the wave propagation deformation conversion relationships to convert the representative combined operating conditions to nearshore control points to obtain design wave elements. This application, driven by multi-source wave-tide data, establishes a joint distribution model of wave height, period, and tidal level and constructs an environmental profile with equal exceedance probabilities, achieving quantitative determination of extreme design wave conditions with clear joint probability meanings, thus improving the scientific and economical nature of coastal engineering design.

The invention belongs to the technical field of coast engineering measurement, and particularly relates to an automatic measuring vehicle for measuring an artificial shoreline. The measuring vehicle comprises a vehicle body, a high-precision GPS receiver, a laser sensor, a controller and a safety protection system. The controller controls the vehicle body to automatically run along the shoreline through a closed-loop algorithm, synchronously collects position and distance data, and solves the coordinates of the shoreline; meanwhile, multiple levels of safety protection mechanisms, such as an early warning air bag, graded deceleration and an emergency separation structure, are integrated, the system adapts to a complex levee top environment, efficient, automatic and high-precision shoreline surveying and mapping operation can be achieved under the conditions of a no-fly zone and the like, and the measurement safety and the data reliability are remarkably improved.

The present application relates to the technical field of port and coastal engineering, and more particularly to a light-weight outfitting wharf structure without cross beam and a construction method thereof; the structure comprises an upper structure, a lower structure and a mooring facility; the upper structure comprises longitudinal beams, pipe trench beams and face plates; the lower structure comprises straight piles and forked piles; and the mooring facility comprises a ship-berthing structure, fenders and mooring columns. The present application adopts pile foundation for the lower structure of the wharf, adopts longitudinal beam system + superimposed face plate structure for the upper structure, directly casts the longitudinal beams on the pile foundation, sets a pair of forked piles under the longitudinal beams to resist horizontal force, and makes the bottom elevation of the longitudinal beams level with the designed high water level, so that the wharf is not affected by the rise and fall of tides in the engineering area, can be constructed all day long, and greatly shortens the construction period; under the premise of meeting the requirements of structural safety and heavy lifting process, the prefabricated parts are miniaturized, large-scale hoisting equipment is not needed, the parts can be manufactured and installed on site, the amount of concrete, steel bars and formwork is greatly reduced, and the structure is more lightweight.

This invention proposes a method and system for stress distribution analysis of permeable breakwaters under different wave conditions, relating to the field of coastal engineering technology. The method includes: real-time synchronous acquisition of wave information and structural response information using sensors deployed at structural components and water-adjacent areas, generating a synchronous wave-structure response dataset; based on this dataset, analyzing the correspondence between wave characteristics and structural strain data, grouping by wave phase time sequence and constructing a structural stress topology map to generate a wave-stress correlation map; determining the correlation map region based on the characteristic information of the current wave condition and the map; and analyzing the structural stress distribution information contained in this region to obtain the stress distribution of the permeable breakwater under the current wave condition. This achieves a fine mapping between wave dynamic characteristics and structural stress distribution, improving analysis accuracy and efficiency.

The invention provides a porous coconut fiber energy dissipation unit and a wave dissipation system construction method, and belongs to the technical field of water conservancy projects of coast engineering and ecological restoration. The energy dissipation unit body is a prolate cube, steel gauze elements are arranged on three sides, a perforated plate is arranged on the wave back side, the bottom is closed, a detachable vegetation upper cover is arranged on the top, and porosity-adjustable coconut fibers are filled in the energy dissipation unit body. The wave back side concave clamping grooves can be clamped with the guide rails to achieve vertical elevation adjustment, and the T-shaped grooves and the tenons on the two sides can be spliced into different arrays. Fertile plants are covered on the vegetation to construct an ecological wave dissipation belt, and a sensor mounting space is reserved in the unit. Physical model tests show that the wave dissipation and flow stabilization effects are good. The energy dissipation unit structure can be applied to construction of various wave dissipation systems, specific adjustment is carried out based on different scenes, and the energy dissipation unit structure has the characteristics of unitization, modularization and the like, adapts to multiple layout scenes, is convenient to construct and maintain and has the functions of wave dissipation and ecological restoration.

The invention discloses a hydrodynamic sediment physical model experiment method for simulating variable tide level combined wave action. The method comprises the following steps: building a physical model experiment system comprising an experiment water tank, a tide level simulation system, a wave generation system and a measurement system; determining a model tide level process and a wave element sequence according to the prototype environment data; calibration of control parameters of the tide level simulation system is carried out in an empty water tank state, and calibration of control parameters of the wave generation system is carried out according to different water depths and wave elements; after a bottom bed model is laid, the two systems are operated synchronously, the water level changes dynamically, corresponding waves are generated, and variable tide level and wave combined action simulation is achieved; and hydrodynamic force and bed topographic data are collected through the measuring system for analysis. Accurate combined simulation of dynamic sea level change and wave action is achieved, the sea level simulation system is simple in structure, low in cost and easy to install and control, the simulation precision of the complex water and sediment movement process is improved, and an economical and reliable experimental means is provided for coast engineering research.

The invention relates to the technical field of image analysis, in particular to a beach vegetation restoration evaluation method based on image feature analysis, which comprises the following steps: acquiring remote sensing images of a target beach restoration area in two time phases before and after an environment disturbance event occurs; performing object-oriented segmentation on the remote sensing images of the two time phases to generate a plurality of vegetation objects, and extracting morphological stability characteristics and ecological stress resistance characteristics of each vegetation object in the two time phases; and calculating a functional toughness index of each vegetation object based on changes of the morphological stability characteristics and the ecological stress resistance characteristics before and after the environmental disturbance event, and evaluating the overall vegetation restoration effect according to the functional toughness index. According to the method, the problem of uncertainty of traditional graph selection according to a fixed time interval is solved, so that vegetation restoration evaluation has the advantages of event driving, accurate time phase and effective data, and technical support is provided for post-disaster ecological monitoring, coastal engineering post-evaluation and the like.

This invention relates to a typhoon-wave-current hazard assessment method based on physical field coupled numerical simulation. The method includes: selecting historical or future typhoon events affecting a target area from historical typhoon trajectory data or artificially synthesized future typhoon trajectory data to generate a typhoon event set; modeling a two-dimensional typhoon mixed wind field based on the constructed typhoon event set, combined with typhoon trajectory and intensity parameters; performing a physical mechanism-based typhoon-wave-current coupled numerical simulation on the target area to generate corresponding wind, wave, and current evolution time history data; and extracting the event maximum and annual maximum values ​​from the simulated wind, wave, and current time history data, and using extreme value analysis to assess hazard risk. This invention is not limited to historical typhoon events; the entire assessment framework can be applied to the hazard assessment and analysis of future typhoon events considering the impact of climate change, improving the climate adaptability and resilience of coastal engineering infrastructure against typhoon-related complex disasters.

The invention relates to the technical field of port and coast engineering, in particular to a fabricated laminate-foundation pile wave dissipation structure and a construction method thereof. The structure comprises a foundation pile, a laminate module, a wing plate, a building material, pile core concrete and a riprap protection bottom, the foundation piles comprise the front-row foundation piles and the rear-row foundation piles which are arranged in a staggered mode. The laminate module comprises a laminate structure and a steel sleeve; the shelf board modules are arranged on the pile tops of the foundation piles in a sleeving mode and are connected through building materials to form a space portal frame type structure. Conventional densely-arranged foundation piles are arranged in a staggered mode to form the front row and the rear row of the foundation piles with the wing plates, the assembled laminate modules and the foundation piles are connected into a portal frame type structure, so that the overall stress condition of the structure is better, the wave dissipation capacity is improved, the soil stress area is increased, the horizontal bearing capacity of the foundation piles is improved, and stress is dispersed; the wave force is reduced by utilizing the permeable characteristic of the laminate, and the survival condition of the structure is optimized; and meanwhile, the whole process is simpler and more convenient through assembly type construction, the construction period is greatly shortened, and the green and environment-friendly engineering concept is met.

The invention discloses microorganism self-repairing shell concrete and a preparation method thereof, belongs to the technical field of engineering materials, and aims to solve the problems of land occupation and environmental pollution caused by stacking of a large number of waste shell resources and insufficient durability caused by easy cracking of a coastal engineering concrete structure in the prior art. The shell sand comprises the following components in parts by weight: 95-105 parts of shell sand; 7-8 parts of a microbial liquid; 85-90 parts of a microbial nutrient substance; 55 to 58 parts of cement; 28 to 30 parts of water; 0.4 to 0.6 part of a water reducing agent; 0.07 to 0.09 part of a defoaming agent; the concrete material is suitable for coastal environment protection and engineering construction, and the purposes of waste resource utilization, crack self-repairing and concrete durability improvement can be achieved.

This invention discloses a confined-space offshore soft soil foundation reinforcement equipment and its construction method, belonging to the field of port and coastal engineering technology. The equipment includes a drainage board steel pipe mounting frame, drainage boards, drainage board end fixing plugs, a floating platform, a floating platform airbag, an intelligent winch, drainage board binding ropes, cables, ballast bagged sand, and a towing vessel. The drainage board steel pipe mounting frame is a four-legged square stool-type steel pipe structure, with the drainage boards fixed to it. The intelligent winch is fixed to the platform and suspends the drainage board steel pipe mounting frame via cables. Ballast bagged sand is placed on the drainage board steel pipe mounting frame. During construction, the equipment is towed to the reinforcement area, and lowered using the intelligent winch, with the four legs statically inserted into the soft soil to establish drainage channels. This invention solves the problem of traditional large equipment being unable to enter confined spaces such as under high piles and beams due to clearance limitations, and has advantages such as simple structure, precise drainage board positioning, and strong adaptability.

This invention discloses a green embankment structure and its construction method for confined space marine soft soil foundations, belonging to the technical field of water conservancy and coastal engineering. The structure includes a silt layer, a silt layer, a drainage board assembly structure, a drainage sand cushion layer, ballast bagged sand, pile foundations, protective bagged sand for the pile foundations, bagged sand sheets, a novel bagged sand sheet embankment, and dredged silt. The drainage sand cushion layer is placed above the silt layer; the drainage board assembly structure penetrates the drainage sand cushion layer and inserts into the silt layer; the pile foundations are wrapped with protective bagged sand for resisting horizontal deformation; the bagged sand sheets are interconnected to form a novel bagged sand sheet embankment to block the horizontal thrust generated by the dredged silt. This invention solves the problems of low bearing capacity and large horizontal deformation in confined space soft soil foundations, and has the advantages of being green and environmentally friendly and convenient to construct.

The application provides a real-time long-distance intelligent monitoring operation and maintenance method and system suitable for a wharf, relates to the field of coastal engineering monitoring, and solves the technical problems of insufficient precision of traditional ultrasonic ranging, difficulty in detection and analysis of floating mud layer, and insufficient accuracy of siltation prediction in the prior art. The method comprises the following steps: collecting multi-source data of a wharf harbor area and preprocessing the multi-source data to obtain preprocessed data; the multi-source data comprises ultrasonic ranging data, environmental parameter data and hydrological data; the ultrasonic ranging data is obtained by optimizing the ultrasonic ranging process through a tilt adaptive beamforming algorithm; based on the preprocessed data, a multi-modal spatio-temporal graph convolution siltation prediction model constructed by using a deep learning algorithm is used for siltation trend analysis, and a prediction result of siltation amount and siltation position is output; according to the prediction result and real-time ultrasonic ranging data, hierarchical early warning information is generated; the early warning information is used for long-distance monitoring operation and maintenance of the nearshore wharf.

This invention discloses a breakwater-integrated power generation system based on pneumatically driven energy storage, belonging to the field of marine renewable energy and coastal engineering technology. The system includes a prefabricated caisson-type breakwater structure, a pneumatically driven energy storage system, and a power generation system. The breakwater body is divided into upper and lower chamber areas. The lower part is a load-bearing chamber, and the upper part is divided into an inlet chamber and an outlet chamber by a vertical main plate. The outlet chamber is further divided into a pressure action zone and a water storage zone by a partition. Wave undulations drive air to flow directionally between the chambers through a one-way valve, compressing the water in the outlet chamber into the raised water storage zone to store potential energy. When the accumulated water head reaches a threshold, the control system opens the valve, releasing water to drive the turbine to generate electricity. This invention fully integrates the power generation module, achieving deep integration of protection and power generation functions. Through a path of pneumatic drive, potential energy storage, and controllable release, it converts wave energy into stable electrical output. This system has a robust structure, is easy to maintain, and provides stable output.

The present application belongs to the technical field of coastal engineering construction, and particularly relates to a prefabricated assembly integral forming structure and method of a gravity type caisson special-shaped cantilever parapet. The method comprises the following steps: S1. structure layering and block optimization; S2. cast-in-place placement surface unit construction; S3. prefabricated special-shaped cantilever component prefabrication; S4. prefabricated component transportation and positioning; S5. prefabricated component offshore installation; and S6. post-poured wet connection construction. The installation precision of a single prefabricated component is controlled within 20 mm, the offshore construction period is shortened by 40% compared with the traditional cast-in-place process, and the comprehensive construction cost is reduced by 17%. The overall stability of the large-volume parapet is ensured, the minimum value of the structural anti-sliding safety factor is greater than 2.13, and the foundation grounding rate is 77.6%, which meets the requirements of nuclear power plant nuclear-grade seismic resistance and durability. The offshore construction is safe and controllable, and is economical and reasonable, which fills the technical gap of the assembly seismic design of special-shaped parapets in the field of water transportation of nuclear power plants, and is particularly suitable for offshore engineering scenes such as nuclear power plant water intakes with strict requirements on structural seismic resistance and durability, and is easy to popularize and apply.

The invention provides an intelligent monitoring and early warning system for the safety of coastal environment engineering, and the system brings four environmental factors which affect the safety of coastal engineering into an integrated monitoring and evaluation system. The constructed multivariate factor dynamic evaluation system has the function of converting complex multi-source data into visual risk indexes and early warning levels. And meanwhile, the constructed dynamic weight updating mechanism can consider the difference of factor influence levels in different periods, so that the scientificity of a prediction and early warning result is improved, and quantifiable decision support is provided for operation and maintenance management of coastal engineering. According to the method, data acquisition and data analysis of the most threatening core indexes of the coastal engineering safety are expected to be realized, and meanwhile, a set of dynamically self-adaptive multi-element factor evaluation system with high interpretability is constructed to evaluate the comprehensive risk, so that the risk evaluation result is credible and traceable, a visual and reliable decision basis is provided for engineering management personnel, and the risk evaluation efficiency is improved. Assistance is provided for risk-based predictive maintenance.

This invention belongs to the field of coastal engineering construction technology, specifically relating to the prefabricated assembly and integral molding structure and method of gravity caisson irregular cantilever breast walls. It includes: S1. Structural layering and segmentation optimization; S2. Cast-in-place support surface unit construction; S3. Prefabrication of prefabricated irregular cantilever components; S4. Transportation and placement of prefabricated components; S5. Offshore installation of prefabricated components; and S6. Post-cast wet connection construction. This invention controls the installation accuracy of a single prefabricated component to within 20mm, shortens the offshore construction period by 40% compared to traditional cast-in-place processes, and reduces overall construction costs by 17%. It ensures the overall stability of large-volume breast walls, with a minimum anti-slip safety factor of over 2.13 and a foundation grounding rate of 77.6%, meeting the nuclear-grade seismic resistance and durability requirements of nuclear power plants. Offshore construction is safe, controllable, economical, and reasonable, filling the technological gap in the prefabricated seismic design of irregular breast walls in the water transport field of nuclear power plants. It is particularly suitable for offshore engineering scenarios with stringent requirements for structural seismic resistance and durability, such as nuclear power plant intakes, and is easy to promote and apply.

The invention provides an image processing method for coastal engineering water quality detection and a related device, and the method comprises the following steps: uniformly stirring a water sample placed in a sample container at regular time, and then collecting a high-resolution optical image of the water sample, the water sample being taken from a target coastal engineering construction area requiring water quality detection; performing noise filtering, image enhancement and geometric correction preprocessing on the high-resolution optical image to obtain a processed high-resolution optical image; performing identification processing on the processed high-resolution optical image by using the trained water quality identification model to obtain a water quality identification result, the water quality identification result comprising predicted values of the target water quality parameters; and comparing and analyzing the water quality identification result with a preset water quality standard database to generate a water quality detection report. According to the invention, efficient and accurate coastal engineering water quality detection can be realized, and sudden pollution events can be rapidly dealt with.

A combined wave-dissipating structure and prefabricated construction method for long-period waves, relating to the field of coastal engineering technology, includes a wave-guided reflector unit, an array plate unit, and an ecological wall unit. These units are arranged sequentially along the wave incidence direction. The wave-guided reflector unit has several wave-guided inclined plates inserted within its steel frame. The array plate unit includes multiple parallel vertical resistance plates. The ecological wall unit is filled with ecological material with a porosity of 0.75-0.85. This invention achieves an optimal transmission coefficient as low as 0.17 when the prototype wave period is 14.1s. The wave-dissipating effect is even better when the wave period is less than 14.1s, reaching 95% when the wave period is relatively short. The three units can be optimally combined according to wave characteristics to achieve the best match between wave-dissipating effect and economic benefits.

The invention relates to the technical field of coast engineering protection, in particular to a beach erosion risk prediction method considering extreme storm conditions, comprising the following steps: S1, acquiring historical topographic data of a target beach and actually measured hydrodynamic data of historical storm; s2, on the basis of actually measured hydrodynamic data of historical stormy waves, performing statistical analysis to obtain wave parameters corresponding to extreme stormy wave conditions; s3, calculating the maximum climbing elevation of the wave on the beach; s4, downwards defining an effective erosion action range on the beach; s5, calculating to obtain the potential erosion amount of the beach shoulder under the extreme storm condition; and S6, according to the potential erosion amount of the beach shoulder and the beach stability parameters, generating an erosion risk level of the target beach. According to the method, the extreme storm parameters, the historical topographic data and the sediment characteristics are fused, the potential erosion amount of the beach is quantitatively calculated, the risk level is generated, and therefore scientific prediction and accurate division of the erosion risk of the beach are achieved.

This invention proposes a method and system for analyzing the bearing capacity characteristics of permeable breakwaters under long-term loads, relating to the field of port and coastal engineering technology. The method includes: acquiring an initial set of input parameters; establishing a three-dimensional multi-field coupled numerical model for analyzing the coupling effects of structural damage, siltation, and bioremediation; performing simulation calculations to obtain a structural response time history dataset; iteratively simulating siltation distribution and structural damage evolution, identifying repair areas where siltation and damage coexist, simulating microbial mineralization repair, and updating material stiffness, continuing the next cycle with the corrected structural finite element model; and determining the dynamic evolution analysis results of the bearing capacity based on the structural response time history dataset. This invention can accurately assess the dynamic evolution law of the bearing capacity of permeable breakwaters under long-term loads.

The invention discloses a composite ecological seawall structure and a layout method thereof, and belongs to the technical field of coast engineering. The structure comprises a dam body, a foot protection wall is arranged on the upstream side of the dam body, a planting layer and a rubble layer are arranged between the foot protection wall and the dam body, a reinforcing assembly is embedded in the planting layer, a first buffer slope and a wave-resistant platform are arranged on the top of the planting layer, an ecological protection assembly is laid, ecological vegetation is planted on the ecological protection assembly on the wave-resistant platform, and a second buffer slope is arranged on the top of the rubble layer. The ecological protection assembly comprises a grating protection plate or a hexagonal porous protection plate and a filling block, and adjacent assemblies are connected through a connecting block. The dam body comprises a core wall piled by bentonite, a barrier layer is arranged on the surface of the core wall, and a dam shell poured by concrete is arranged outside the core wall. The reinforcing assembly comprises an anchor rod and a blocking rod, and one end of the anchor rod is fixed in the dam shell. The structure is stable, the good ecological property is achieved, wave impact can be effectively relieved, coast erosion is prevented, and meanwhile coast ecological system recovery is promoted.

This invention discloses a method for predicting the static equilibrium shoreline of headlands and bays based on CNN-BiLSTM, belonging to the fields of coastal engineering and remote sensing information. The method includes: acquiring remote sensing images, tidal and wave data, and constructing training and testing sample sets; establishing a polar coordinate system with the headland diffraction point as the origin, uniformly selecting feature points along the shoreline and calculating their parameters, and constructing a multi-dimensional feature system by correlating dynamic data; building a CNN-BiLSTM hybrid model, using CNN to extract spatial features between feature points and BiLSTM to capture the temporal evolution of the shoreline, and training and integrating the model; using SHAP value analysis to quantify the independent and interactive contributions of each dynamic factor and identify core influencing factors; and finally predicting the static equilibrium shoreline morphology based on measured data. This invention achieves high-precision and interpretable prediction of the equilibrium shoreline of headlands and bays, effectively revealing the mechanism of multi-dynamic coupling.

This invention belongs to the field of coastal engineering technology and discloses a combined breakwater of dredged material solidified soil membrane bag and masonry structure and its construction method. The breakwater includes a base layer, a reinforcing layer, irregular masonry, and fasteners. The reinforcing layer includes a flexible membrane bag and fluidized solidified soil. The interior of the flexible membrane bag is filled with fluidized solidified soil containing dredged material. The irregular masonry, reinforcing layer, and base layer are arranged sequentially from top to bottom. When the fluidized solidified soil is placed inside the flexible membrane bag and is in a fluid state, the irregular masonry is placed on the upper surface of the flexible membrane bag and can sink into the bottom of the flexible membrane bag. When the fluidized solidified soil inside the flexible membrane bag solidifies into a solid state, the reinforcing layer and the irregular masonry are consolidated to form an integrated protective structure. Through the above configuration, the combined breakwater of dredged material solidified soil membrane bag and masonry structure of this invention improves the overall structure's scour resistance and overturning stability, and helps to realize the resource utilization of dredged material.

The application discloses a plate exchanger blockage cause prediction method, device, equipment, medium and product, relates to the coastal engineering technical field, and the method comprises the following steps: a three-dimensional baroclinic ocean numerical model in a preset space range where a target engineering sea area is located is constructed; the target engineering sea area comprises a plurality of plate exchangers; a calculation domain is determined according to boundary conditions of the three-dimensional baroclinic ocean numerical model; the boundary conditions comprise surface boundary conditions, bottom boundary conditions and fixed boundary conditions; the three-dimensional baroclinic ocean numerical model is configured based on the calculation domain; water body structure in the calculation domain is simulated by running the configured three-dimensional baroclinic ocean numerical model, and observation data in the target engineering sea area in a target time period is obtained; the observation data comprises tide level, flow velocity and flow direction of each observation point; and the cause of plate exchanger blockage is determined according to the observation data. The application can provide reliable data support for blockage cause analysis.

The application provides a porous coconut shell fiber energy dissipation unit and a wave dissipation system construction method, and belongs to the technical field of hydraulic engineering of coastal engineering and ecological restoration. The energy dissipation unit body is a flat and long cube, three sides are provided with steel gauze, the back wave side is provided with an open hole plate, the bottom is closed, the top is provided with a detachable vegetation upper cover, and the inside is filled with coconut shell fiber with adjustable porosity. The back wave side recessed clamping groove can be clamped with a guide rail to realize vertical height adjustment, and the two side T-shaped grooves and tenons can be spliced into different arrays. The vegetation upper cover can construct an ecological wave dissipation belt with plants, and the unit reserves sensor installation space. Physical model test shows that the wave dissipation and flow stabilization effects are good. The energy dissipation unit structure can be applied to the construction of various wave dissipation systems, and specific adjustments can be made based on different scenes. The application has the characteristics of unitization and modularization, is suitable for multiple arrangement scenes, is convenient for construction and maintenance, and has the functions of wave dissipation and ecological restoration.

The present application provides a lagoon water exchange capacity analysis method, device, equipment and medium, relates to the field of coastal engineering and ecological restoration technology. In view of the problems that the traditional hydrological measurement method in the prior art depends on sparse point data and is difficult to capture spatial heterogeneity comprehensively, and the precision of the experience and physical model method is low, the cost is high or the universality is poor, so that the key indicators such as the half exchange period of the lagoon water body cannot be accurately quantified, the present application builds and verifies a two-dimensional tidal flow and convection diffusion mathematical model, simulates the tracer transport process and builds the decay curve of the average concentration of the tracer in the lagoon area with time, so as to determine the half exchange period, which has the advantages of realizing accurate, quantitative and comprehensive evaluation of water exchange capacity, and providing efficient, low-cost scientific basis for treatment engineering.