142 results about "Coastal zone" patented technology

The invention discloses a vegetation-submerged embankment coupled tough coast protection method and system and a storage medium, and the method comprises the steps: firstly, determining a research region, and systematically collecting the near-shore terrain, water and sand power conditions, vegetation parameters and other data; secondly, constructing a water-sand-vegetation coupling numerical simulation model based on the collected data, and performing precision verification on the model; then selecting a suitable vegetation type in combination with environmental characteristics of the research area, carrying out artificial seeding and planting work in a vegetation potential habitat of the tidal flat, and determining a design elevation and an offshore distance of the submerged dike; and finally, evaluating the coast protection effect under the synergistic effect of the submerged embankment and the vegetation, and quantitatively analyzing the improvement degree of the coast protection effect on wave attenuation and beach stability. A sustainable tough coast protection system can be formed under the climate change background through a collaborative protection mechanism integrating natural vegetation and an artificial submerged embankment. The method has the advantages of low cost, remarkable wave reduction effect and the like, and the capability of coping with climate change challenges and comprehensive protection of coastal zones can be effectively improved.

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 belongs to the technical field of remote sensing image data processing, and relates to a multi-feature fusion coastal zone culture pond extraction method, which comprises the following steps: obtaining spectral features and polarization features based on an obtained Sentinel-1 image and an obtained Sentinel-2 image; calculating and evaluating an NDWI time sequence based on the NDWI to generate a time sequence synthesis NDWI image; a water body main body is obtained through the hierarchical feature fusion decision tree; obtaining morphological characteristics based on the water body object; obtaining the chlorophyll a concentration and the dynamic characteristic factor of the chlorophyll a concentration based on the Sentinel-2 image; and extracting a culture pond through a random forest classifier, and generating a culture pond spatial distribution diagram. According to the method, the spectral features, the polarization features, the morphological features, the chlorophyll a concentration and the chlorophyll a concentration dynamic feature factors are fused, and the decision tree and the random forest classifier are fused through the hierarchical features, so that the problems of low accuracy and poor stability of existing culture pond extraction are solved.

The invention discloses a coastal zone planning method and system based on MaXent and hotspot analysis, and relates to the technical field of coastal zone planning. Comprising the following steps: S1, collecting environment variable data, species distribution data and development intensity data, constructing a unified space-time grid system, and realizing time sequence expression of the data through data preprocessing; s2, constructing a quarterly time sequence maximum entropy model, and performing time sequence evaluation on each grid habitat state to form a habitat evolution type; s3, identifying time sequence significant hot spots and hot spot persistence and intensity features, constructing ecological development relationship comprehensive representation, and identifying ecological development conflict types; and S4, spatially superposing the habitat evolution type and the ecological development conflict type to form a self-adaptive access rule, and generating differentiated planning suggestions according to regions. The problem that planning lacks dynamic adaptability due to the fact that coastal zone habitat suitability and development intensity depend on static time point data for a long time and a time sequence evolution rule cannot be recognized is solved.

The invention belongs to the technical field of image processing, and discloses a coastal zone ground feature coverage information extraction method and system based on a remote sensing cloud platform. Multi-source remote sensing data are integrated, and a standardized image is generated after preprocessing; an improved U-Net model is constructed, an encoder of the improved U-Net model adopts a residual convolution module to enhance feature extraction, a decoder recovers details through bilinear interpolation up-sampling and jump connection, the segmentation precision of an artificial shoreline and a natural shoreline is optimized in combination with a weighted cross entropy loss function, and the recognition robustness of a complex ground feature coverage area is improved; and superposing the coastline segmentation result and the ground feature classification data space, generating a vector result, and verifying the precision through a comprehensive evaluation system fusing multiple indexes. According to the method, high-precision extraction of coastal zone ground feature information is realized, and technical support is provided for ocean space planning and implementation and coastal zone resource management.

The invention discloses an ocean disaster comprehensive decision-making system based on reinforcement learning, and relates to the technical field of ocean disaster analysis, the ocean disaster comprehensive decision-making system comprises an ocean disaster decision-making platform, the ocean disaster decision-making platform is in communication connection with an ocean environment sensing module, a disaster decision-making analysis module, a disaster risk early warning response module and a feedback optimization module, the modules are in electric signal connection; the marine environment sensing module is used for collecting and integrating marine environment data of a target sea area in real time. According to the method, the historical marine environment data and the real-time marine environment data are learned and analyzed through the reinforcement learning model, the early-stage features and evolution trends of marine disasters can be accurately recognized, the occurrence time, intensity and influence range of the disasters can be accurately predicted in advance, and then high-precision early warning information is quickly generated in combination with historical similar scenes, so that the early warning efficiency is improved. And more time is won for precaution preparation for coastal areas, and disaster loss is effectively reduced.

The invention provides a coastal zone land coverage type classification method based on a random forest and a topology rule, and belongs to the technical field of coastal zone land coverage type classification. The method comprises the following steps: based on a GEE cloud platform, integrating a multispectral remote sensing image and elevation data, extracting spectral features and geographic features, and realizing pixel-level classification of random forest machine learning; generating a clustering unit through a simple non-iterative clustering method, and performing object-oriented special classification on the water body and the aquaculture pond in combination with spectral and morphological characteristics of the clustering unit; spatial filtering is introduced to remove salt and pepper noise, a coastal zone ground feature topology rule base is established to carry out spatial logic verification, and coastal zone land coverage classification with high precision and reasonable spatial layout is realized. According to the method, the multi-source remote sensing data and the multi-level classification strategy are fused, the problems of coastal zone ground feature spectrum confusion, boundary fuzziness and space logic inconformity are effectively solved, the classification precision and practicability are remarkably improved, and the method is suitable for land coverage monitoring and management of the complex coastal zone environment.

The invention provides a natural shoreline and mangrove forest supervision method and system based on video recognition, and the method comprises the steps: S1, installing and deploying information collection equipment, and setting a preset position and a cruise plan according to different monitoring targets; s2, accessing original sample data acquired by information acquisition equipment, reinforcing an original sample data set through a three-level data enhancement framework, and constructing a shoreline target sample data set; s3, optimizing by taking the YOLOv8n model as a basic model, and constructing a shoreline target recognition model; s4, constructing a target entity-spatial constraint-ownership state triple verification rule fusion judgment model as a behavior recognition model; and S5, inputting a recognition result of the shoreline target recognition model into a behavior recognition model, judging an illegal behavior through a triple verification rule, and generating early warning information. According to the invention, the working efficiency of natural shoreline supervision can be improved, and a replicable solution is provided for fine management of the coastal zone and the mangrove forest.

The invention discloses a multi-spectrum and SAR cooperative sensing sea reclamation increment remote sensing detection method, and belongs to the technical field of land change remote sensing monitoring. According to the scheme, multi-spectrum and SAR satellite data are fused, the data advantages of optical images and synthetic aperture radar images are effectively combined, and through the wave band operation and threshold segmentation technology, the real-time performance of the sea reclamation increment is improved. According to the method, more detailed and reliable sea reclamation pattern spot information can be obtained, the spatial distribution and dynamic change of suspected sea reclamation pattern spots can be accurately identified, and the limitation that traditional optical remote sensing is interfered by cloudy and rainy weather is effectively overcome. The method is used for a computer program to execute and complete multi-source data fusion, change detection and sea reclamation suspected pattern spot detection and analysis, and can be widely applied to the fields of coastal zone ecological environment protection, coastal city planning management, ocean resource sustainable utilization, relevant policy making and the like. And a core technical support is provided for full-process monitoring and scientific decision making of the reclamation activity.

The application discloses a coastal zone planning method and system based on MaXent and hotspot analysis, and relates to the technical field of coastal zone planning. The method comprises the following steps: S1, collecting environmental variable data, species distribution data and development intensity data, constructing a unified space-time grid system, and realizing time series expression of the data through data preprocessing; S2, constructing a quarterly time series maximum entropy model, time series evaluating habitat states of each grid, and forming habitat evolution types; S3, identifying time series significant hotspots and hotspot persistence and intensity characteristics, constructing a comprehensive representation of ecological development relationship, and identifying ecological development conflict types; and S4, spatially superimposing the habitat evolution types and the ecological development conflict types, forming adaptive access rules, and generating differentiated planning suggestions according to regions. The problems that the long-term dependence of coastal zone habitat suitability and development intensity on static time point data and the inability to identify time series evolution rules result in the lack of dynamic adaptability of planning are solved.

The invention relates to the technical field of pipe fitting welding, and particularly discloses an automobile air conditioner connecting pipeline welding method.The automobile air conditioner connecting pipeline welding device comprises a welding device, the welding device comprises a bottom plate and bearing pipes, the bearing pipes are symmetrically and fixedly connected to the upper surfaces of the two sides of the bottom plate, and sliding rods are symmetrically and fixedly connected to the upper surface of the middle of the bottom plate; the top of the sliding rod is slidably connected with a high-frequency vibration auxiliary welding gun. According to the bronze drum, the rare earth element cerium is added into the welding wire, a local dehumidification device is combined for use, the chloride ion corrosion problem of an automobile air conditioner pipeline in the marine climate environment is effectively solved, the cerium element reacts with invaded chloride ions to generate a stable cerium-chlorine compound protection layer, the corrosion path is blocked, and the corrosion resistance of the automobile air conditioner pipeline is improved. And meanwhile, the welding environment humidity is strictly controlled to be below 30% through the local dehumidification device, the condition that water participates in electrochemical corrosion is eliminated from the source, stress corrosion cracks are completely eliminated, and the durability of the welding structure in the coastal area is remarkably improved.

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.

The application discloses a kind of oyster reef repair methods based on plant material construction attachment matrix, it is related to the technical field of coastal zone ecological restoration.The repair method includes the following steps: S1, selecting plant material, the stem of salt marsh plant is the plant material;S2, the plant material is cut into segments and pretreated, and an attachment matrix assembly is prepared;S3, a plurality of the attachment matrix assemblies are tied and connected to form an attachment matrix unit, the attachment matrix unit is arranged in a matrix, is vertically fixed on the surface of a bearing member, and forms a deployable matrix structure unit;S4, the matrix structure unit is laid in the target repair area, and is fixed to the base by anchoring assembly.The plant material of the application maintains structural durability during the oyster attachment period, and is completely degraded naturally in the later period;It reduces the dependence on hard artificial matrix, has a wide source of materials, is easy to construct, has remarkable repair effect, and is suitable for oyster reef repair in intertidal zone or shallow water area and other areas where natural attachment matrix is lacking.

The utility model relates to the technical field of coastal zone ecologicalization, and discloses a coastal zone ecologicalization planting device which comprises a fixing column, a fixing clamping block, a connecting hole, a supporting rod, a planting rod, an anti-falling rod, an anti-corrosion sleeve, a waterproof sleeve, a mounting disc and a rotating ring. A connecting hole is fixedly formed in one end of the fixing clamping block, a supporting rod is fixedly arranged at the upper end of the fixing column, and a planting rod is fixedly arranged at one end of the supporting rod. According to the planting device for ecologicalization of the coastal zone, by improving the planting device for ecologicalization, the activity adjusting capacity of the planting device for ecologicalization is improved, and in the actual using process of the planting device for ecologicalization, the planting device for ecologicalization can be movably adjusted to a proper position according to needs; rotation of the planting device for ecologicalization is facilitated, and the ecologicalization planting effect of the planting device for coastal zone ecologicalization is improved.

The objective of this invention is to provide a technology that can stabilize the ground in coastal areas and other similar locations. [Solution] The present invention provides a sand and gravel mixture packed into a bag, wherein the sand and gravel mixture contains calcium-containing sand and gravel and iron powder, the content of the iron powder is 2 to 12 v / v% relative to the sand and gravel mixture, the content of the sand and gravel mixture is 70 v / v% or more relative to the volume of the bag, and the bag is permeable to water.

The application provides a coastal zone change detection method based on an attention mechanism and a joint loss function, and belongs to the technical field of coastal zone change detection.The application uses a nonlinear transformation attention mechanism and a joint loss function to solve the problem of coastal zone change detection in optical remote sensing images, and performs pixel-level subtraction operation on double-time-phase features, so that the model effectively locates the specific position of the coastal zone change, reduces the error caused by brightness difference, and improves the accuracy of change detection.The joint loss function combines a cross-entropy loss function and an edge extraction loss function, improves the performance of the change detection model in processing complex scenes, reduces the confusion between the target domain and the background, and improves the change detection of the edge obvious area.

This application relates to a temperature control device for large-volume concrete in coastal areas and its usage method. This application is applicable to the field of concrete temperature control technology. The technical solution adopted in this application is: a temperature control device for large-volume concrete in coastal areas, comprising: a cold source component for extracting and storing seawater; a cooling component connected to the outlet end of the cold source component and disposed within the concrete, the cooling component having an annular cavity capable of storing seawater, the annular cavity being waterproof, breathable, and isolated to form a hollow steam channel; a condensing component connected to the end of the cooling component away from the cold source component, the condensing component being used to condense water vapor in the steam channel into fresh water for collection; a vacuuming component connected to the condensing component, the vacuuming component being used to maintain a vacuum state inside the steam channel; and a control component, communicatively connected to the cold source component, cooling component, condensing component, and vacuuming component, the control component being used to control the opening and closing states of each component.

The application discloses a kind of coastal groundwater-surface water monitoring sampling device and experimental method of adaptation tidal fluctuation, including carrying platform, amphibious mobile track system located below carrying platform, positioning navigation system located on carrying platform, buoyancy adjusting wing plate system symmetrically located on the both sides of carrying platform, groundwater monitoring sampling system located on carrying platform, surface water monitoring sampling system located on carrying platform, sample separation and preservation system located in carrying platform, visual monitoring system located on carrying platform and control system located in carrying platform, wherein control system is respectively electrically connected with amphibious mobile track system, positioning navigation system, buoyancy adjusting wing plate system, groundwater monitoring sampling system, surface water monitoring sampling system, sample separation and preservation system and visual monitoring system.The application realizes synchronous, layered sampling of groundwater and surface water at different sites in coastal zone within full tidal cycle.

The invention discloses a coastal zone nitrogen and phosphorus reduction effect evaluation method, which comprises the following steps: acquiring multispectral image data and a digital surface model, and acquiring actual gradient, altitude and long-term hydrological dynamic data through ground actual measurement, sampling and investigation; extracting core parameters, correcting a digital surface model by utilizing ground actual measurement altitude data, constructing a target coastal zone precise digital elevation model, determining a gradient and dividing a gradient interval, and identifying a target coastal zone type and a planting / slope protection combined structure by combining multispectral image data, ground survey data and the digital surface model; obtaining a nitrogen and phosphorus reduction reference value according to the core parameters, extracting a rainfall intensity correction coefficient and a water level amplitude correction coefficient in combination with hydrological dynamic data, and calculating a final nitrogen and phosphorus reduction proportion; and spatial visualization is carried out, so that efficient, accurate and standardized evaluation of the nitrogen and phosphorus reduction effect of the coastal zone is realized, and a scientific basis is provided for design, optimization and effect inspection of ecological restoration engineering of the coastal zone.

The invention provides a coastal erosion prediction method and system based on adaptive STL decomposition and CNN-LSTM, and the method comprises the steps: obtaining the elevation scatter data of a coastal zone region in a specified time period, and constructing a three-dimensional spatio-temporal data set according to the elevation scatter data; subsequence data is extracted from the three-dimensional spatiotemporal data set through a specified sliding time window for calculating the window length, a seasonal stability index value is calculated according to the subsequence data, and the seasonal stability index value is converted into a corresponding adaptive seasonal window length according to a preset mapping relation; performing STL decomposition processing on the three-dimensional spatiotemporal data set in combination with the adaptive seasonal window length to obtain a seasonal item sequence, a trend item sequence and a residual item sequence; and performing elevation value prediction on the seasonal term sequence, the trend term sequence and the residual term sequence based on the trained CNN-LSTM combination model to obtain a final coast erosion prediction result. According to the method, the accuracy of coastal zone space-time erosion feature prediction can be improved.

The present application relates to carbon storage monitoring technical field, specifically to a coastal carbon storage dynamic tracking and prediction method, comprising the following steps: S1, collecting multi-source monitoring data of coastal area and performing standardization alignment, constructing ecological factor cross-scale projection atlas; S2, identifying carbon storage jump events caused by vegetation degradation rate mutation, sediment carbon rebound or terrain sudden drop in the atlas, extracting corresponding micro-terrain disturbance structure and ecological disturbance factor combination, and constructing event structure trigger set; S3, inputting the trigger set into carbon storage structure transition prediction model, fusing ecological function area disturbance response parameters, and outputting carbon storage diffusion main path and jump section dynamic tracking graph in future period. The present application realizes accurate identification, dynamic diffusion path tracking and risk grade evaluation of coastal carbon storage jump events, and significantly improves the scientificity and application value of carbon storage migration prediction.

1. The name of the design product: unmanned ship depth finder. 2. The use of the design product: the design product is used for water depth measurement in inland rivers, ports, channels and coastal zones, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The application provides a manufacturing method of cement mixing piles of soft soil in coastal areas, and belongs to the field of cement mixing piles. The method determines a plurality of sample parameter groups, creates a plurality of cement mixing pile samples corresponding to the plurality of sample parameter groups, respectively performs impermeability testing and compression testing on the plurality of cement mixing pile samples, and obtains an impermeability parameter group and a compression parameter group of each cement mixing pile sample, determines the impermeability parameter and the compression parameter of each cement mixing pile sample, obtains a comprehensive parameter of each cement mixing pile sample in the plurality of cement mixing pile samples, and the comprehensive parameter is the sum of the compression parameter and the impermeability parameter of the cement mixing pile sample; the sample parameter group corresponding to the cement mixing pile sample with the maximum comprehensive parameter is determined as a target parameter group, and the cement mixing pile is manufactured based on the target parameter group, so that the performance of the manufactured cement mixing pile is improved.

This invention discloses an anti-corrosion coating for steel structures in coastal areas, comprising an epoxy zinc-rich primer layer, an epoxy micaceous iron oxide intermediate paint layer, and a fluorocarbon topcoat layer. The invention also includes a construction process for this anti-corrosion coating on steel structures in coastal areas, comprising the following steps: Step 1, pretreatment of the steel structure surface; Step 2, application of the epoxy zinc-rich primer; Step 3, application of the epoxy micaceous iron oxide intermediate paint; Step 4, application of the fluorocarbon topcoat; Step 5, finished product inspection and touch-up coating. This invention utilizes a three-layer composite anti-corrosion coating system consisting of an epoxy zinc-rich primer, an epoxy micaceous iron oxide intermediate paint, and a fluorocarbon topcoat. By introducing a water-based rust converter to optimize the surface pretreatment process, and combining precise control of key processes such as layered coating and curing, the adhesion between the coating and the steel structure substrate and the overall anti-corrosion durability are significantly improved. It exhibits excellent anti-corrosion performance and is suitable for anti-corrosion treatment of coastal steel structures such as port terminals, cross-sea bridges, and offshore platforms.

The invention relates to the technical field of energy chemical industry, water treatment and hydrogen energy comprehensive utilization, and provides a sodium hypochlorite generator and fuel cell coupled operation system and operation method. The air supply system comprises an air supply module and a hydrogen supply module; an anode of the fuel cell stack is connected with the hydrogen supply module and a byproduct hydrogen outlet of the sodium hypochlorite generation system; and the cooling module is used for cooling the fuel cell stack through cooling medium circulation and providing heat for seawater entering the sodium hypochlorite generation system. According to the arrangement, through deep complementation and coupling utilization of efficient electric energy and heat energy characteristics of the fuel cell, low-temperature heating requirements of the sodium hypochlorite generating device and byproduct gaseous resources, the problem of electrochemical preparation of sodium hypochlorite in coastal areas in winter in northern areas is solved, and nearby consumption of coastal green hydrogen energy is promoted; the overall energy utilization efficiency of the system is improved, the operation cost is reduced, and energy conservation and emission reduction of the coastal industrial process are promoted.

The invention discloses a hot galvanizing surface treatment process for a transformer oil tank in a coastal area, and belongs to the technical field of transformer manufacturing. The hot galvanizing surface treatment process comprises the steps of oil tank polishing, oil removing and water washing, first-time baking, oil tank sand blasting, oil tank sand cleaning, oil tank galvanizing, oil tank polishing and deslagging, anti-baking paint filling, second-time baking, primer paint, third-time baking, intermediate paint, fourth-time baking, finish paint, fifth-time baking and inspection. A hot galvanizing process is adopted, the paint is high in adhesive force and good in coating quality, uniform and smooth paint films can be obtained for all parts of the transformer oil tank, the anti-corrosion effect is improved by means of the cathode protection effect of zinc in seawater and combined spraying of an anti-corrosion organic coating, and the service life of the transformer oil tank in coastal areas is guaranteed.

The application discloses a kind of coastal zone soil embankment hole grouting repair equipment and method, grouting repair equipment includes grouting pipe, grouting pipe is by upper beating cylinder and lower grouting pipe, the inner hole diameter of beating cylinder is greater than the inner hole diameter of grouting pipe, top side wall of beating cylinder is equipped with feed hopper, feed channel is equipped with intercommunication between feed hopper and beating cylinder, end cap is fixedly installed on beating cylinder upper end, the center hole on end cap, beating rod is slidably installed on center hole, the diameter of beating rod is less than the inner hole diameter of beating cylinder, handle for push-pull is equipped on the upper end of beating rod, the lower end of beating rod is equipped with piston that sealing sliding connection is carried out with the inner hole of beating cylinder, one-way valve is equipped on piston.The grouting repair equipment of the application has the advantages of low cost, mobile repair is convenient, can be quickly repaired to the hole of coastal zone soil embankment caused by fish, crab and other organisms by worker.

The invention provides a widening construction method for roads in a coastal area, and belongs to the field of road construction. The method comprises the following steps: establishing a numerical model based on stratum parameters, the width of a road and the to-be-widened degree, and simulating a plurality of reinforcement parameter groups through the numerical model to obtain settlement data and horizontal displacement data of the numerical model reinforced by each reinforcement parameter group, and then determining the displacement data and the minimum reinforcement parameter group as a target reinforcement parameter group, and broadening the road according to the target reinforcement parameter group. In this way, the reinforcing mode with small settlement and horizontal displacement can be determined in a model simulation mode so as to be flexibly applied to broadening construction of various roads, and the effect of improving the flexibility of the method is achieved.

The invention discloses a multi-disaster concurrent ocean disaster risk assessment method based on a complementary set superposition algorithm, relates to the technical field of ocean disaster risk management, and aims to clarify an ocean area to be researched, determine a plurality of disaster-inducing factors and disaster-bearing bodies, collect data of the disaster-bearing bodies and calculate the storage proportion of the data. According to the multi-disaster concurrent marine disaster risk assessment method based on the complement set superposition algorithm, the complement set superposition algorithm is introduced, so that the composite influence of multiple disaster-inducing factors on different disaster-bearing bodies can be comprehensively considered, the limitation of a traditional single disaster assessment mode is avoided, the risk value under the single disaster-inducing factor is calculated, and the risk value under the single disaster-inducing factor is calculated; and the superimposed effect under different disaster combinations is quantified through the sensitivity matrix, so that the actual risk state under a multi-disaster concurrent scene is reflected more accurately, more reasonable support is provided for disaster early warning and emergency response in coastal regions, and the accuracy and reliability of risk assessment are effectively improved.

The utility model relates to the technical field of building construction, in particular to an anti-corrosion pile for coastal areas, which comprises a pile body, the pile body comprises a soaking section, a drying section and a splash section, the soaking section is positioned below the water surface, the drying section is exposed in the air, the splash section is arranged between the soaking section and the drying section, and the splash section is arranged between the soaking section and the drying section. The splash section corresponds to a direct wave scouring area; a bearing table integrally formed with the soaking section is arranged on the soaking section, a sleeve is arranged on the bearing table, the diameter of the sleeve is larger than that of the pile body, and the end of the sleeve extends to the drying section. According to the utility model, the sleeve is arranged to cover the splash section, so that on one hand, the splash section can be positioned in a relatively stable dry environment, chloride ions are effectively prevented from invading into concrete, and on the other hand, the splash section is prevented from being directly scoured by waves, thereby reducing the risk of cracking and peeling of the splash section concrete; and the overall durability and safety of the anti-corrosion pile are improved.