188 results about "Tide level" patented technology

The invention belongs to the technical field of crossing of environmental engineering and ocean dynamics, and particularly relates to a tidal dynamics prediction method and control device for a seawater desulfurization system, and the method comprises the steps: constructing a time-space coupling prediction model fusing multi-source hydrological observation data, and introducing a nonlinear dynamic weight distribution mechanism; the influence of terrain constraint, wind stress disturbance and upstream runoff on tidal propagation is quantified in real time, and a rolling prediction sequence of tide level phase, flow velocity gradient and salinity disturbance in the next three hours is output; the prediction result drives the scheduling of a desulfurization pump set, the adjustment of spraying density and the matching of aeration intensity, and the model weight is corrected on line based on the actually measured feedback of desulfurization efficiency to form closed-loop control. By means of the technical scheme, accurate cooperation of the operation parameters of the desulfurization system and tidal dynamics is achieved, meaningless energy consumption is reduced while the desulfurization efficiency is guaranteed, and the utilization rate of the desulfurization agent and the stability of the system are improved.

The invention discloses a non-point source pollution emergency bypass decision control method, particularly relates to the technical field of automation and process control, and aims to solve the problems that existing scheduling cannot align multi-source measurement and evaluate credibility in minutes under a unified time base, and is lack of risk measurement integrated with a tide level phase and a moisture regain path and same-layer gating. The bypass rhythm is easy to misjudge, and the oscillation is difficult to audit. A minute-level risk density is constructed through multi-source alignment and credibility grading under a unified time reference, injected tide level phases and moisture regaining paths, bypass rhythms are constrained by same-layer gating and tide windows, and beam search, boundary arbitration and fixed window closed-loop correction are matched, so that the risk density is improved. Therefore, under the superposition of rainstorm and tide, decision making and execution are stably limited in a non-backflow red line, bearing and equipment limit, misjudgment and oscillation are remarkably reduced, the problems of unavailability and difficult auditing caused by multi-source asynchronization and moisture regain coupling are solved, intelligent decision support is provided for non-point source pollution treatment, and it is ensured that the treatment technology is accurate and efficient.

The invention discloses an ecological shoreline diagnosis method and system based on hydrological-biological communication, and is applied to the technical field of water environment ecological restoration and shoreline health assessment. Comprising the following steps: dividing intertidal zones of a shoreline research area, and generating uniformly distributed sampling points in each tidal zone; extracting a plurality of indexes related to hydrological and biological connectivity, and constructing a comprehensive hydrological-biological connectivity state index through principal component analysis; dam feature data of a shoreline area are obtained, correlation analysis and collinearity screening are carried out, and key shoreline features are screened through a random forest algorithm; constructing a mechanism connectivity index based on a circuit theory; constructing and training a Bayesian network prediction model; and performing connectivity state diagnosis, attribution analysis and restoration scheme effect simulation on the target shore section by using a Bayesian network prediction model. By coupling hydrological and biological connectivity, static element evaluation is changed into dynamic ecological process diagnosis, and dominant factors are accurately positioned.

The invention discloses an island shoreline erosion monitoring method and system based on image recognition, and the method comprises the steps: processing an optical image through meteorological data, obtaining a clear optical image, carrying out the multi-source feature fusion of the clear optical image and an SAR image, and obtaining a preliminary shoreline probability graph; carrying out fine extraction and image recognition on the initial shoreline probability graph according to the instantaneous tide level to obtain an island shoreline planar graph, carrying out image registration and constructing an island shoreline digital surface model, calculating a three-dimensional deviation field and quantifying an erosion index, calculating a driving factor, and determining a dynamic monitoring threshold according to the driving factor and a standard monitoring threshold. And carrying out island shoreline erosion early warning according to the erosion index and the dynamic monitoring threshold. The method not only can improve the efficiency and accuracy of island shoreline erosion monitoring, but also has good interpretability, and can be directly applied to an island shoreline erosion monitoring system.

The invention discloses a tidal flat automatic extraction method fused with an irregular hexagonal grid. The method comprises the following steps: step 1, constructing a time sequence remote sensing data set; step 2, establishing a precision verification sample library; step 3, screening spectral indexes; 4, synthesizing an extreme tide level image; 5, generating an irregular hexagonal grid; step 6, carrying out adaptive threshold segmentation; step 7, secondary elimination of confused ground features; step 8, tidal flat range extraction and precision verification; according to the method, based on a time sequence remote sensing image set, pixels at all positions are screened through a specific spectral index maximum value, a new extreme tide level image is formed through combination, spatial heterogeneity of a complex coastal zone is adapted through an irregular hexagonal grid and a bottom-to-top hierarchical merging strategy, local self-adaptive threshold segmentation is achieved in cooperation with a local Otsu algorithm, and a new extreme tide level image is obtained. The optimal grid scale is automatically determined by means of an elbow method, and the confused ground features are secondarily eliminated through the time sequence standard deviation, so that the problem of miscarriage of the confused ground features is effectively solved, and high-precision full-automatic extraction of the tidal flat is realized.

The invention discloses an offshore platform tide level data processing method, device and equipment and a storage medium, and relates to the technical field of signal processing. According to the scheme, standard time-frequency transformation and fast Fourier transformation are combined, periodic signals in signals can be completely recognized and extracted, the extraction precision of sea level data of an offshore platform is improved, and therefore reliable sea level data are obtained; and the de-noised tide data of various partial tides are obtained, so that the influence degree of different tides on the offshore platform can be analyzed.

The invention relates to a tide level obtaining method and system based on an OWC wave energy conversion device. The method comprises the following steps: constructing an energy loss prediction model in the air chamber; acquiring field incident wave energy, reflected wave energy, water potential energy increment, kinetic energy increment and pneumatic output energy at the current time period; inputting incident wave energy and reflected wave energy into the model to obtain predicted energy loss; and the tide level variation is solved based on the energy conservation relational expression, and the current tide level is calculated. The system comprises an energy loss prediction module, a wave energy acquisition module, a water body energy acquisition module, a pneumatic output acquisition module, an energy loss calculation module, a tide energy solving module and a tide level calculation module, which cooperatively realize the method. According to the scheme, an external tide gauge station is not needed, the local sea area tide level can be inversed in situ, at high frequency and with high precision, the method is suitable for an OWC-breakwater fusion scene, and cooperative operation of a port and ocean energy is supported.

The invention relates to the technical field of underwater topographic surveying and mapping, in particular to a sea area water taking channel scanning survey method and system based on multi-beam measurement, and the method comprises the following steps: constructing a rigid support, fixing a depth finder through a three-way cable fastening device, and building a Boolean parameter model; sound velocity, tide level and original echo data are collected; performing space-time registration, coordinate conversion and filtering denoising on the data to generate corrected water depth; and constructing an irregular triangulation network by using hard boundary constraint, generating a digital elevation model, and extracting a siltation area. According to the invention, multi-beam wide sector scanning and multi-sensor attitude correction technologies are fused, a limited water area full-coverage measurement system is constructed, and the problems of terrain blind areas and detail loss are solved. A boundary constraint reconstruction algorithm is utilized to realize closed-loop processing from coordinate reference unification to micro-landform restoration, the accuracy of channel bottom pit capture and edge topography expression is improved, and data support is provided for sedimentation analysis.

The invention provides a tide level prediction method and device and a server, and relates to the technical field of tide prediction, the method is applied to a tide level prediction model, the tide level prediction model comprises a harmonic analysis model, and the method comprises the following steps: carrying out harmonic analysis processing on original tide level data through the harmonic analysis model, determining an astronomical tide predicted value and non-astronomical tide data of the tide; performing decomposition and noise reduction processing on the non-astronomical tide data, determining various modal components of the non-astronomical tide, and determining a non-astronomical tide predicted value based on the gating cycle model and the modal components; and superposing the non-astronomical tide predicted value and the astronomical tide predicted value to determine a target tide level predicted value. The precision of tide level prediction can be remarkably improved.

The invention discloses a buoy attitude self-adaptive wind wave calibration method for a typhoon landing path sea area, and relates to the field of ocean monitoring, and the method comprises the steps: obtaining attitude information, original wave height information and wind speed and direction information of a target buoy through a six-degree-of-freedom IMU, a micropressure array wave height meter and a three-axis ultrasonic wind speed sensor carried by the target buoy; compensating the original wave height information based on the attitude information and the wind speed and direction information to obtain compensated wave height information; based on remote sensing inversion data, a storm surge numerical forecasting model or historical tide level data, obtaining a storm surge lifting height of the current area, and taking the storm surge lifting height as a zero drift error of the micropressure array wave height meter; and outputting target wave height data based on the zero drift error and the compensated wave height information. According to the calibration mechanism of fusion compensation and multi-source correction provided by the method, the adaptability and practicability of a traditional buoy system under extreme meteorological conditions are remarkably improved.

The invention provides a water plant raw water and clear water lifting pump station joint optimization energy-saving dispatching method and system for solving the problems that traditional pump station dispatching depends on artificial experience, global optimization is lacked, and energy waste is serious. Comprising the steps that a flow-lift and flow-efficiency relation model is established, and a variable frequency pump deduces a performance formula under any frequency based on the similarity law; in the first-stage optimization scheduling, the optimal flow of a water intake pumping station and the optimal water storage level of a clean water tank in each time period are determined by adopting a dynamic programming algorithm and taking the minimum total work of the system as a target, and the conditions of flow balance, water level constraint and the like are met; and in the second-stage optimization scheduling, the genetic algorithm is adopted to optimize the combination and operation frequency of the water pumps in each time period by taking the minimum total power of the pump set as a target, and a flow and lift deviation penalty term is introduced. According to the method, water taking, water storage and water supply whole-process collaborative optimization is achieved, the energy saving rate exceeds 10%, the operation cost is reduced, the method adapts to dynamic changes of the water source tide level and the water demand, and the dispatching intelligent level is improved.

The utility model discloses an artificial oyster reef structure which comprises a wave dissipation base and an upper-layer reef body, the wave dissipation base is connected with the upper-layer reef body in a floating mode, the height of the wave dissipation base is lower than the historical lowest water level line, the head wave face of the wave dissipation base is obliquely arranged, the upper-layer reef body comprises a floating reef body, and the floating reef body is provided with an oyster attachment structure. The oyster reef generating device has the advantages of being capable of adapting to tide level changes and stable in oyster reef generating efficiency.

The invention discloses a real-time monitoring and analyzing method and system for underwater settlement deformation, and belongs to the technical field of marine surveying and mapping and deformation monitoring. The method comprises the following steps: calculating wave height, wave period and wave direction elements of waves through a water surface fluctuation inversion model; carrying out denoising processing on the obtained water depth data; a gyroscope and a GNSS buoy are used for dynamic wave measurement, and sea level and wave information is separated through low-pass filtering according to the frequency spectrum characteristic difference of the sea level and waves so as to correct the attitude of the buoy; the buoy measurement data and the water depth data collected by the pressure sensor are synchronized, the water surface height right above the measurement pile is calculated in combination with a water surface fluctuation inversion model, and the real-time elevation of the water bottom is obtained; and according to the water bottom real-time elevation and the water bottom settlement grade division standard, triggering early warning of a preset grade through the data cloud platform. According to the invention, real-time monitoring of underwater settlement deformation is realized, the monitoring period is shortened, the monitoring timeliness is improved, and the underwater settlement risk is found in time.

The invention discloses a cofferdam pond gate control system based on the Internet of Things, and belongs to the technical field of gate control, and the cofferdam pond gate control system specifically comprises the steps that a data acquisition module obtains satellite tide data and meteorological monitoring data through an Internet of Things control center; the tide level prediction module inputs the two types of data into a multi-model fusion mechanism, integrates an astronomical tide model based on gravity calculation and a meteorological tide model based on wind pressure coupling, and generates a comprehensive tide level curve according to dynamic weight fusion; the height analysis module determines the upper limit of the opening height in the flood period by taking the real-time tide level as the reference flushing retarding interval according to the comprehensive tide level curve, and dynamically adjusts the theoretical opening height of the water changing port in combination with the water head rate in the ebb period; the gate control module generates a gate lifting instruction and issues the gate lifting instruction to the driving unit through the Internet of Things to control the sectional type sealing plate to act, and it is ensured that the error between the actual opening height and the theoretical value is within the preset range; according to the invention, environment dynamic response of tide regulation and control is realized.

The invention relates to the technical field of breakwaters, in particular to a breakwater embedded with an oscillating water column type wave energy power generation device adapting to tidal range variation, which comprises a breakwater body, a plurality of mounting grooves are formed in the head wave surface of the breakwater body and are respectively arranged at intervals in the horizontal direction, and a driving system is arranged in each mounting groove. The driving system is connected with an oscillating water column type wave energy power generation device, and the oscillating water column type wave energy power generation device is driven by the driving system to ascend and descend in the vertical direction. A plurality of oscillating water column type wave energy power generation devices are embedded in the head wave face of the breakwater body at intervals, and the heights and opening orientations of the oscillating water column type wave energy power generation devices are flexibly adjusted through the driving system so as to adapt to and be matched with tidal range changes and incoming wave direction changes of a service sea area; on the basis of maintaining stable mooring conditions in the harbor, energy absorption and capture of waves with different tide levels and incoming wave directions are achieved in an efficient mode, and the capture efficiency is improved to the maximum extent.

The invention provides a multi-modal fusion radar tide level intelligent adaptive filtering method, which belongs to the technical field of radar tide, and comprises the following steps: through dual-polarization radar signal acquisition, performing three-layer wavelet decomposition on vertical and horizontal polarization digital intermediate frequency signals, and marking clutter coefficients based on variance and skewness threshold values; performing adaptive soft threshold processing, evaluating residual clutter confidence coefficient by using a convolutional neural network, dynamically adjusting suppression intensity, calculating a polarization phase difference sequence, inputting the polarization phase difference sequence into a long-short-term memory network to identify a false target distance unit, and calculating multipath path parameters by combining ray tracing of a digital elevation model to perform phase compensation and amplitude correction; finally, an accurate tide level height value is obtained by detecting a real tide level distance Doppler spectrum peak value, and the technical problem that the measurement precision is reduced due to the fact that radar tide level measurement cannot effectively distinguish clutter interference and multipath false targets in a complex marine environment is solved.

The invention provides a coastline reference plane determination method based on tide correction, and belongs to the technical field of coastline detection.The method comprises the steps that a high-resolution satellite image and airborne laser radar data are collected and input into a sea-land boundary recognition model constructed by a neural architecture growth algorithm based on attention guidance, and a refined instantaneous coastline is extracted; a coastal tide numerical model containing a shallow moisture tide term and a composite partial tide term is established, a coastal refined tide forecast tide level sequence is obtained through a variational data assimilation optimal control algorithm, and a refined instantaneous coastline is associated with a corresponding forecast tide level to establish a spatial distribution function; the coastline position corresponding to the lowest tide level of the multi-temporal remote sensing data inversion theory is integrated through the Bayesian maximum posteriori estimation method to serve as the coastline reference plane, and the technical problem that the determination precision of the coastline reference plane is affected by dynamic changes of tides and water density differences, and consequently spatial positioning is inaccurate is solved.

The application discloses a kind of short-term prediction methods of high tide flood in coastal areas based on probability statistics. Including: obtaining the historical hourly water level observation data of target coastal area tide station and preprocessing;Climate state probability distribution model is constructed, and corresponding climate state distribution parameters are obtained;Decay persistence prediction model is constructed, and the observation abnormal value of future month is calculated according to the current month observation abnormal value;The climate state distribution parameters are adjusted by the observation abnormal value of future month;The daily cumulative flood probability is calculated based on the adjusted climate state distribution parameters;Daily cumulative flood probability is calculated day by day, and the high tide flood probability sequence of coastal cities in future several months is obtained, the warning probability threshold is set, and the date higher than the warning probability threshold in high tide flood probability sequence is marked as high tide flood high risk day.The high tide flood prediction of the application is more in line with the needs of disaster risk assessment, has more information, and can provide seasonal scale prediction, leaving time for medium and long term planning and emergency preparation.

This application discloses a method, system, and electronic equipment for guiding vessels through an immersed tunnel area in a port area, relating to the field of vessel management in port waters. The method includes: triggering vessel identification based on an electronic fence; determining the target vessel to enter the electronic fence area; determining the vessel's navigation path based on scheduling plan information; estimating the time interval for the target vessel to pass through the immersed tunnel area; acquiring tidal level data of the immersed tunnel area; and calculating the passage window period for passing through the immersed tunnel area based on the tidal level data; comparing the time interval for passing through the immersed tunnel area with the passage window period; and determining the time period for the vessel to pass through the immersed tunnel area based on the comparison results; and generating passage guidance information for the vessel during its passage through the immersed tunnel area based on real-time tidal height data during the passage period. This application solves the technical problem in related technologies where only vague prompts are provided for vessels with passage risks in immersed tunnel areas, resulting in low vessel passage efficiency.

This invention relates to a method and storage medium for calibrating abrupt change points in tidal data. The method includes: acquiring tidal data within a preset time period; calculating the absolute value of the change between any two adjacent tidal data points; removing threshold values ​​from all calculated absolute values ​​to obtain the remaining absolute values; using the maximum value among the remaining absolute values ​​as the basis for determining the abrupt change points in all tidal data; interpolating the abrupt change points; sorting the interpolated tidal data according to time sequence, and then performing a fitting calculation based on a selected order to obtain the fitted tidal data. This method allows for the retrieval and calibration of abrupt change point data in tidal data, effectively reducing the workload of tidal data compilers and improving work efficiency.

The invention discloses a tide level correction applicability evaluation method and system for a tide station, and belongs to the technical field of machine learning processing under tide harmonic analysis, and the method comprises the steps: carrying out the unified time reference alignment and preprocessing of an actually measured tide level time sequence; respectively constructing a physical error sequence and a machine learning error sequence; obtaining a physical side performance characteristic index and a machine learning side performance characteristic index; according to the tide level correction applicability evaluation method and system of the tide station, eight novel performance indexes are respectively calculated by constructing an error sequence of an actually measured tide level, a physical tide level and a machine learning tide level, so that a quantitative judgment result whether machine learning correction is recommended or not is given under the constraint of a physical mechanism.

The invention discloses a biological communication channel and a design method thereof, belongs to the technical field of mud flat treatment engineering, and aims to solve the problems of poor water permeability of a siltation promotion dam and insufficient water continuity and biological circulation among reservoir areas in the existing mud flat treatment engineering. The invention provides a biological communication channel composed of a height-difference-free asymmetrically-perforated cavity type prefabricated part and a fish reef cluster, and the prefabricated part is provided with a longitudinal / transverse partition plate, a rest pool and a bottom plate open hole to form a bidirectional full-tide water passing channel; the matched design method comprises the steps of data collection and typical tide level determination, flow field numerical simulation, prefabricated part scale optimization (based on the proper flow velocity of fishes), structural stability checking calculation, fish reef group setting and the like. The channel can effectively improve hydraulic communication and biological circulation among reservoir areas, reduce the blocking influence of engineering on aquatic organisms, and create a habitat for benthic organisms.

The application discloses a design tide level value method based on short-term data error consideration in the field of ocean engineering technology, and aims to solve the problem of difficult engineering design tide level value in the area with short tide level data. The method comprises the following steps: calculating the design high and / or low tide level value of a long-term tide level station according to the annual maximum and / or minimum tide level sequence of the long-term tide level station, and estimating the sampling error; obtaining the same period hourly tide level data of a temporary tide level station and a long-term tide level station in the sea area where the engineering is located, and forming the daily maximum and / or minimum tide level sequence; establishing a simple linear correlation equation, and obtaining the regression line error and the sampling error of the correlation coefficient; and then calculating the design high and / or low tide level value of the temporary tide level station according to the above-mentioned data. The application is suitable for the moisture-proof and corrosion-proof of engineering structures, solves the problem of unreliable results when designing tide level value according to short-term tide level data, shortens the required long-term tide level data to 5 years, and changes the current situation that it is difficult to design tide level value when the long-term tide level data of the engineering sea area is less than 20 years.

The invention relates to a static light long-distance sea-crossing permanent railway and highway floating bridge, which is a fundamental change for the design thought of building a long-distance sea-crossing permanent bridge. The biggest problem to be solved is that piers do not need to be built on straits and seabed, the construction difficulty and work amount of cross-sea bridge construction are greatly reduced, and the influence on the straits ecological environment is small. The technical key points are as follows: 1, N relatively static floating islands are built by utilizing seawater buoyancy, the floating islands are synthesized from cheap materials, and bridges are erected on the floating islands; 2, each floating island is formed by uniformly distributing m seabed stainless steel wire ropes on the left side and the right side of the floating island, straightening and firmly holding the seabed stainless steel wire ropes, and the m stainless steel wire ropes are wound and tied on the m reinforced concrete blocks sinking into the seabed respectively; and 3, the absolute horizontal height of the floating island is not changed. The floating island does not freely float on the water surface, and at the lowest tide level, the buoyancy ensures that the m strands of stainless steel wire ropes have moderate tension. And 4, the core principle is as follows: mechanical balance, namely buoyancy F1 = borne bridge gravity G + tensile force F2 of a seafloor stainless steel wire rope.

A tidal information display device for a movable body includes a position measurement module configured to detect a position of the movable body, a geographical information selection module configured to determine geographic information to be displayed on a display screen based on the detected position, a tidal information module configured to receive and store tidal information based on the detected position, and a tidal information display module configured to generate display data for displaying a graphical user interface (GUI) at a predetermined position on the display screen. The GUI is configured for showing the tidal information including at least one of: a present height of a tide, a high tide time, a low tide time, and a position of the tide.

The invention provides an ocean tide level prediction model training method, prediction method and device and electronic equipment, and relates to the technical field of computers.The ocean tide level prediction method comprises the steps that historical ocean tide level data are input into a numerical prediction model for tide level prediction, and numerical model prediction data are obtained; historical ocean tide level data are input into a deep learning prediction model for tide level prediction, deep learning model prediction data are obtained, and the deep learning prediction model is constructed based on a time convolutional network; according to the numerical model prediction data and the deep learning model prediction data, training the initial integrated learning model to obtain initial ocean tide level prediction data and loss function output; and adjusting model parameters of the initial integrated learning model according to the loss function output until the loss function output meets a preset condition, and taking the initial integrated learning model after parameter adjustment as a sea tide level prediction model. According to the invention, the prediction precision of the sea level prediction model is improved.

According to the channel dredging supervision method and device, the electronic equipment and the storage medium, centimeter-level position data can be obtained through a Beidou real-time high-precision positioning terminal, and dynamic capture of the position and draught change of a dredger is achieved in combination with real-time water level monitoring of a multi-tide-level observation station; the problems of data lag and insufficient precision of traditional manual observation or simple sensors are solved, and the loading and dumping states of the dredged mud can be accurately reflected; by delimiting the dredging construction area and the mud throwing area and combining dual judgment of the ship position and the draft change, automatic supervision of the whole process of'transportation-dumping 'is achieved, the three states of normal navigation, illegal dumping and compliant dumping can be distinguished without depending on manual inspection, and the supervision efficiency is greatly improved. According to the invention, real-time high-precision positioning can be carried out on the dredging ship, and the state of the dredging ship is judged in real time, so that channel dredging supervision is carried out.

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 present application belongs to the technical field of ocean wave power generation, and particularly relates to a quick detachable and mounted OWC pneumatic structure, which comprises a bottom-opened rectangular air chamber, the side wall of the air chamber is provided with an embedded sliding groove matched with the wharf track, the top is provided with a valve structure, the valve structure realizes three working modes of complete closure, bidirectional conduction and only downward conduction through the cooperative action of the fixed valve piece, the moving valve piece stator and the moving valve piece flap, the air chamber can realize self-adaptive adjustment of the tidal level and quick disassembly preparation through controlling the valve mode and matching the sliding groove sliding along the track combined with the locking mechanism. The present application solves the problems of inconvenient disassembly and inability to adapt to the change of tidal level of the existing mounted OWC device, has the advantages of flexible deployment, convenient maintenance and stable energy efficiency, and is suitable for the green transformation of the existing port.

The utility model discloses a reusable sand dam shaping device which comprises two bottom curtain bodies, two top curtain bodies, a bottom curtain body and a bottom curtain body, the two top curtain bodies are detachably connected with the bottom curtain body through connecting rods, the top curtain bodies are connected with first buoys with cable winches, and the two top curtain bodies are fixedly connected through cables between the first buoys; and the fixing unit is fixedly connected with the fixing piece, the connecting rod and the first buoy through a mooring rope. The sand dam shaping device is divided into the bottom curtain body and the top curtain body, the connecting rod is arranged, the connecting rod is connected with the bottom curtain body, the top curtain body and the fixing unit through the mooring rope, and the winch is arranged on the first floating barrels so that the position between the first floating barrels can be adjusted according to the tide level; after construction is finished, the top curtain body and the first float bowl are transferred to a next construction area, and the bottom curtain body is reserved to continuously play a role in protecting the sand dam form; according to the design of the sand dam shaping device, the whole-course protection function and the repeated use function are achieved, and efficient cyclic utilization is achieved.