49 results about "Coastal engineering" patented technology

The invention relates to the technical field of coast engineering, in particular to a beach change evolution inversion method combining numerical simulation and actually measured data, which comprises the following steps: S1, acquiring an actually measured shoreline data set of a current period; s2, establishing a wave-tidal current-sediment coupling numerical model; s3, outputting a simulated shoreline data set; s4, performing spatial matching on the actually measured shoreline data set and the simulated shoreline data set to generate a spatial discrete residual field; s5, taking the spatial discrete residual field as a constraint condition, and reversely solving an optimal hydrodynamic parameter combination; and S6, inputting the optimal hydrodynamic parameter combination into the wave-tide-sediment coupling numerical model, and outputting the beach evolution form in the future period. According to the method, dynamic coupling of the hydrodynamic parameters and the beach evolution process is realized by constructing an inversion optimization mechanism based on actual measurement data driving, and the accuracy of shoreline change simulation and the reliability of prediction are greatly improved.

The invention relates to the technical field of coastal engineering, and discloses a coastal sand transport calculation method and system for a sandy coast, and the method comprises the following steps: obtaining target parameters and initial profile data of a target coast; calculating a profile change item caused by transverse sediment transport through a one-dimensional beach evolution model; an equivalent coastal distance parameter is innovatively introduced, and the coastal sediment transport gradient is rapidly estimated; calculating an elevation change item caused by coastal sediment transportation in combination with the gradient; overlapping transverse and coastal change items to obtain complete bed elevation evolution data; iteratively calibrating the equivalent coastline distance parameter based on historical terrain data until the simulation result conforms to the actually measured shoreline change; and finally outputting the calibrated coastal sediment transportation influence prediction. And the problem of prediction deviation caused by neglecting the coastal sediment transport gradient of a traditional one-dimensional beach evolution model can be solved.

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 application provides a kind of weight calculation method and device of armor block, belong to coastal engineering technical field, this method includes: based on the wave height of target sea area, wave period, slope gradient and spectral peak rise factor, the stability coefficient of twisted king block, the stability coefficient of double block and the stability coefficient of fill block stone are calculated;Based on the stability coefficient of twisted king block, the stability coefficient of double block and the stability coefficient of fill block stone calculated, the required armor block structure is determined;Based on the required armor block structure, and the wave height of target sea area, wave period, slope gradient and spectral peak rise factor, the weight of the required armor block is determined.The application fully considers the wave height of target sea area, wave period, slope gradient and spectral peak rise factor, and then selects the most stable armor block structure, and determines the weight corresponding to the armor block structure, realizes the purpose of enhancing the stability of armor block.

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.

The application discloses a kind of optimal filling rate calculation method of multilayer sand-filled geotextile pipe coast beach protection, belong to the technical field of coast protection engineering.The quantitative relationship between filling rate and geotextile pipe elliptical section size is established, the overall multilayer structure is taken as the research object, the anti-sliding torque and sliding torque are calculated, and the explicit function relationship between the anti-sliding stability safety factor and the filling rate is derived;Finally, the safety factor and the filling rate relationship curve is drawn, and the filling rate corresponding to the highest point of the curve is taken as the optimal filling rate.The application can scientifically and quantitatively determine the optimal filling rate of multilayer sand-filled geotextile pipe under different marine environmental conditions, effectively reduce the waste of filling material under the premise of ensuring the anti-sliding stability of the structure, significantly reduce the engineering cost, and improve the wind and wave erosion resistance and long-term service life of the structure.The method is simple, accurate and suitable for various coastal engineering such as coast protection, sea embankment protection, beach management, etc.

The application is a long-acting self-repairing low-carbon concrete suitable for a coastal environment and a preparation method thereof, and belongs to the technical field of composite material preparation.The concrete is prepared from the following components in parts by mass: cement 360-400 parts;water 145-152 parts;sand 775-785 parts;stone 1075-1085 parts;water reducing agent 3-5 parts;self-repairing biochar 20-40 parts;and corrosion-resistant additive 0.5-1 part.The application solves the three problems of strength loss under high biochar content, non-sustainable microbial self-repairing function and serious marine biological chemical corrosion.The experiment shows that the 28-day compressive strength is increased by more than 8% compared with the benchmark, the crack area repair rate is more than 77.5%, and the number of marine fouling organisms is significantly reduced, thereby providing a long-life, low-maintenance integrated material solution for coastal engineering structures.

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 present application relates to the technical field of coastal engineering, and discloses a method and system for calculating sand transport along a sandy coast, which comprises the following steps: obtaining target parameters and initial profile data of the target coast; calculating a profile change item caused by transverse sand transport through a one-dimensional beach evolution model; innovatively introducing an equivalent alongshore distance parameter to quickly estimate the alongshore sand transport gradient; combining the gradient to calculate an elevation change item caused by alongshore sand transport; superimposing the transverse and alongshore change items to obtain complete bottom elevation evolution data; iteratively calibrating the equivalent alongshore distance parameter based on historical topographic data until the simulation result conforms to the measured shoreline change; and finally outputting the calibrated alongshore sand transport impact prediction. The present application can solve the prediction deviation problem caused by the traditional one-dimensional beach evolution model ignoring the alongshore sand transport gradient.

The invention discloses a wave measurement method based on a light and shade shape recovery method of an unmanned aerial vehicle camera shooting function, and belongs to the technical field of coast engineering image measurement. Comprising the following steps: acquiring optical information of an actually measured site, calibrating a photographic imaging system, constructing a land reference object platform, establishing a three-dimensional shape based on an SFS reference object, calculating a size transformation coefficient, establishing a three-dimensional shape based on an SFS sea surface wave, and acquiring wave parameters. According to the SFS wave measurement method based on the camera shooting function of the unmanned aerial vehicle, waves are shot through the camera shooting imaging function of the unmanned aerial vehicle, firstly, the size conversion coefficient is calculated in the mode of introducing a reference object, then three-dimensional recovery is conducted on the sea surface wave shape based on the SFS method, and finally the actual three-dimensional size of the sea surface waves is obtained. In the field of ocean engineering wave measurement, the method has high accuracy, flexibility and convenience. The problems that a traditional wave measurement method can only obtain the wave height of a specific point and the cost of obtaining wave parameters is high are solved, and the method has certain technical benefits and engineering significance.

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 present application relates to the technical field of monitoring system, and more particularly to a method and system for analyzing the impact of coastal engineering on biodiversity, comprising: collecting micro-topographic parameters, water salinity parameters, bottom material parameters and biological larva attachment parameters of the coastal engineering area in real time through a sensor module; the micro-topographic parameters include engineering structure height, median diameter of silt, tidal period and average water depth of intertidal zone, the water salinity parameters include initial salinity before engineering and water temperature, the bottom material parameters include initial organic carbon content and porosity of bottom material, and the biological larva attachment parameters include effective area of larva attachment base; inputting the collected parameters into a data processing module, and the data processing module sequentially calculates micro-topographic disturbance intensity, salinity stratification intensity, organic carbon mineralization rate of bottom material and larva attachment success rate based on a micro-topographic salinity bottom material cascade effect model; and the present application can adapt to complex terrain and dynamic environment, and realize efficient data processing and stable operation.

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.

The application discloses a 3D printing fractal cubic gradient porous wave-damping and protection surface system and a construction method, and belongs to the technical field of coastal engineering and 3D concrete printing manufacturing. The system comprises a plurality of 3D printing fractal cubic modules laid on a protection slope wave-approaching surface, and the modules are internally provided with three-dimensional communication fractal holes penetrating in the up-down, left-right and front-back directions. The plurality of modules comprise large-scale, medium-scale and small-scale modules and are arranged in a gradient direction from a slope foot to a slope top along the height direction of the protection slope. Adjacent row modules in the same scale partition are arranged in a staggered manner in the front-back and left-right directions, so that a preset offset is formed between the inter-block gaps of an upstream row and the holes in a downstream row, and a non-linear multiple-turning composite energy consumption channel of the inter-block gaps, the three-dimensional penetrating holes in the blocks and the inter-block gaps of the downstream row is formed. The application has the functions of gradient wave-damping, pressure release, three-dimensional water exchange and ecological micro-habitat construction, and can be used in coastal protection slope, breakwater protection surface and ecological revetment engineering.

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.

The application relates to a design method and device of a semi-penetrating composite sheet pile wharf structure, and belongs to the technical field of port engineering and coastal engineering. The steel pipe piles and sheet piles of the vertical bearing system and the high-position anchorage restraint system, the embedded depth and the anchor rod tension of the oblique anchor tension collaborative system are optimized and designed based on the reduced wave load spectrum and the soil pressure distribution. Finally, a bottom scouring isolation layer model is constructed, scouring simulation is carried out by using the bottom scouring isolation layer model, and relevant feedback results are generated by using the scouring simulation results. The application can configure the steel pipe piles and sheet piles of the vertical bearing system and the high-position anchorage restraint system, the embedded depth and the anchor rod tension of the oblique anchor tension collaborative system by multiple analysis of the measured wave data of a target port, can feed back and analyze according to the actual simulation situation, and can further improve the wave dissipation performance and the structural bearing capacity.

The present invention relates to the field of port and coastal engineering technology, and discloses an undulating flexible submerged dike with multiple wave-breaking functions, including a support assembly and an undulating wave-breaking mechanism. The undulating wave-breaking mechanism includes a horizontal wave-breaking plate and a flexible water bag arranged on the top of the horizontal wave-breaking plate. The undulating wave-breaking mechanism is movably connected to the support assembly, and the undulating wave-breaking mechanism performs periodic vertical swinging motion relative to the support assembly, and the flexible water bag performs periodic back-and-forth swinging motion. The present invention combines the horizontal wave-breaking plate with the flexible water bag, which not only enhances the wave reflection and crushing energy dissipation effects of the submerged dike, but also simultaneously utilizes the up and down undulation of the horizontal wave-breaking plate and the left and right swinging of the flexible water bag to generate vortices to dissipate wave energy, thereby further improving the wave-breaking effect. In addition, the present invention can be installed under different water depth conditions, which makes up for the disadvantage that traditional rigid submerged dikes cannot be applied to deep water.