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38 results about "Tidal water" patented technology

Hole wall stability dynamic control system in tidal formation drilling process

The invention relates to the technical field of foundation and foundation engineering construction, and discloses a hole wall stability dynamic control system in the tidal formation drilling process, and the system comprises a multi-source dynamic sensing module which is used for obtaining the multi-dimensional data of the drilling pressure, the tidal water level, the displacement of the soil layer around the hole and the like in real time; the data processing and intelligent decision-making module is used for receiving the sensing data and carrying out analysis and prediction through a built-in dynamic mapping and self-calibration model so as to generate a prospective hole wall stability control instruction; and the cooperative control and planning execution module is used for receiving the control instruction and analyzing the control instruction into a cooperative adjustment action on wall protection and drilling parameters, so that accurate and closed-loop dynamic control is executed on the stability of the hole wall. According to the method, through multi-source sensing, self-calibration model prediction and collaborative planning control, prospective and self-adaptive fine adjustment of the hole wall stability is achieved, and the drilling safety is improved.
Owner:LIANYUNGANG HARBOR ENG CO

Tidal water and fertilizer irrigation equipment

The utility model discloses tide type water and fertilizer irrigation equipment which comprises a water and fertilizer box and a placement frame, a placing rack is fixedly mounted at the top end of the water-fertilizer box, a culture pot is mounted at the top end of the placing rack, a second water storage cylinder is mounted on one side of the top end of the placing rack, and a return pipe is mounted in the second water storage cylinder. By arranging the tidal structure, when water and fertilizer irrigation is carried out, water and fertilizer can be injected into the culture pot through cooperation of the water pump, the water inlet pipe and the first water storage cylinder, and when the water and fertilizer in the culture pot reach a certain height, the water and fertilizer in the culture pot flow into the water and fertilizer box through the backflow pipe according to the siphon principle; the work is cyclically repeated, so that the irrigation effect is better; furthermore, a circulation mode is adopted for tidal irrigation, the utilization rate of water and fertilizer is high and can reach 90% or above, waste of the water and the fertilizer is reduced, the nutrient solution evenly rises from the bottom of the culture pot and infiltrates the root system of the plant, irrigation is quite even, a large amount of manpower is saved, and irrigation is more convenient.
Owner:刘丽春 +2

Survey and sampling floating platform and quantitative evaluation method for fish in tidal creek during flood and ebb tides

PCT designated stageWO2026031470A1Data processing applicationsFishing netsTidal waterStream flow
The present invention relates to the technical field of fish survey in tidal creeks. Disclosed are a survey and sampling floating platform and quantitative evaluation method for fish in a tidal creek during flood and ebb tides. The floating platform comprises a floating platform frame and survey and sampling nets, wherein each survey and sampling net comprises a net mouth welded by a galvanized pipe. In the present invention, by means of the provided floating platform, corresponding sampling fishing nets are respectively lowered for collection during flood and ebb tides, and flow meter data is read to calculate tidal water volume flow, such that aquatic organisms and nutrients in the tidal creek during the flood and ebb tides can be comprehensively collected, the deficiency of related data collection during flood tides in existing research is made up for, accurate monitoring and quantitative evaluation of tidal creek organisms and substance transfer are achieved, and the types, quantities and distributions of tidal creek organisms during the flood and ebb tides, and changes in tidal water flow can be comprehensively understood, thereby deeply understanding the situations of tidal creek organisms and substance transfer, and providing important data support and decision-making basis for related research and ecological protection.
Owner:EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI

High-pile wharf cast-in-place beam construction method based on steel bar component and jig frame

PendingCN122013717AArtificial islandsBreakwatersTidal waterRebar
The invention provides a high-pile wharf cast-in-place beam construction method and jig frame based on reinforcing steel bar component. The construction method comprises the steps that actual position data of the pile top of a steel pipe pile are collected; the actual position data of the pile tops of the steel pipe piles are compared with the theoretical position data, and the plane deviation and the elevation deviation of the pile top of each steel pipe pile are calculated; according to the plane deviation of the pile top of each steel pipe pile, the bending parameter and the correction length of the main reinforcements of the cross beam component reinforcements corresponding to the steel pipe pile are calculated, so that the reserved holes of the cross beam component reinforcements are aligned to the steel pipe piles, and the lap joint length of the main reinforcements of every two adjacent cross beam component reinforcements meets the requirement; component steel bars are manufactured through the steel bar binding jig frame; a bottom formwork is installed on the steel pipe pile, component steel bars are placed on the bottom formwork, and remaining steel bars are bound; installing a side template; and concrete is poured, and the formwork is dismantled. According to the method, the overwater operation time is greatly shortened, the limitation of tide water on the construction time is effectively avoided, and the construction efficiency is remarkably improved.
Owner:CCCC SECOND HARBOR ENGINEERING CO LTD

Suspension type mobile platform for installing beam bottom maintenance track

ActiveCN223780706UBridge structural detailsTidal waterTrackway
The utility model discloses a suspension type mobile platform for installing a beam bottom overhaul track, and solves the problem that the existing mobile platform is high in safety risk. Comprising a maintenance track and an electromechanical platform, the position of the electromechanical platform is adjusted along the track, the maintenance track is fixed to the beam bottom and provides guidance for the electromechanical platform, and the electromechanical platform comprises a truss structure, a walking structure, a locking structure and a stopping structure; wherein the maintenance track walks on the installed maintenance track through the walking structure, the locking structure is used for position locking, and the stop structure is arranged to prevent the moving platform from sliding out of the track; by using the device, the cantilever of the maintenance track at the bottom of the beam is installed, the investment of hoisting equipment and temporary supports is reduced, the safety risk is reduced, and the problem of installation of the maintenance track under special working conditions such as a deep gorge, a high clearance bridge or a tidal water area is solved.
Owner:CCCC SECOND HARBOR ENGINEERING CO LTD +1

Turbine

A turbine 1, particularly a vertical axis Savonius turbine for use with tidal water flow, has at least two blades 3, 5 and an axis of rotation 11. Each blade extends radially outwards from a first end
Owner:HYDROWHEEL LTD

Intelligent concrete temperature control system based on tidal flow regulation and control of differential water pipe array

PendingCN121807054ATemperatue controlTidal waterTemperature control
The invention discloses an intelligent concrete temperature control system based on tidal flow regulation and control of a differential water pipe array. The intelligent concrete temperature control system comprises a tidal water flow regulation and control array, a quick plug interface module, a data acquisition and wireless transmission module based on optical fibers, an intelligent water supply core control subsystem and a terminal, the tide type water flow regulation and control array is composed of a plurality of tide type flow regulation and control units, and each tide type flow regulation and control unit comprises a water pipe, an expansion type flow linear control check block, a fixed end and a first optical fiber; and the optical fiber-based data acquisition and wireless transmission module is used for receiving instructions and data of the terminal and feeding back temperature and strain data to the terminal. The system has the characteristics of modularization, convenience in mounting, accuracy in control, adaptability to different flow conditions and the like, and is suitable for large-scale mass concrete structure engineering with higher requirements on accurate temperature control in subareas in the construction period, such as hydraulic dams, large bridge anchors, high-rise building foundation platforms and other complex engineering scenes with strict requirements on concrete crack prevention and control.
Owner:HOHAI UNIV

Reef-building shellfish bottom sowing and field planting method

PendingCN121195874AClimate change adaptationPisciculture and aquariaTidal waterCrassostrea
The invention provides a reef building shellfish bottom sowing and field planting method. The method comprises the following steps of bottom sowing sea area selection, fry selection and treatment, fry transportation and bottom sowing and field planting. The bottom sowing sea area is a leeward area with the annual average water temperature ranging from 20 DEG C to 30 DEG C, the salinity ranging from 29 per mill to 34 per mill, the dissolved oxygen content ranging from 4 mg / L to 7 mg / L and the water flow speed ranging from 0.1 m / s to 0.3 m / s, the area is required to be located in the area suitable for reef building shellfish to grow and distribute, and the sea area substrate is mainly corallite or reef. The reef-building shellfish is ostrea gigas, ostrea marginata or giant clam, parents are collected from a natural sea area to be domesticated, and after gonads of the parents are well developed, offspring seeds are obtained by adopting an artificial breeding method. According to the method, the native species obtained in situ are adopted, and artificial breeding acquisition is carried out; manual bottom sowing and field planting are carried out in the large tide, the tide water law is fully utilized, and shellfish survival is facilitated.
Owner:SOUTH CHINA SEA INST OF OCEANOLOGY CHINESE ACAD OF SCI +1

A method and device for risk assessment of a mariculture area

The application provides a mariculture area risk assessment method and device, through constructing a multi-dimensional dynamic element coupling simulation model, the joint simulation of water depth topography, atmospheric forcing field, typhoon moving path, tide boundary and seawater temperature and salinity flow and other various dynamic elements is realized, and more real and fine marine environment characteristic information can be obtained. Through bidirectional data exchange between the wind wave model and the hydrodynamic model, the key parameters such as sea wave radiation stress, tidal current velocity and tidal water level can be updated synchronously, so that the simulation accuracy under extreme sea conditions is significantly improved. On this basis, the application combines the differentiated characteristics of the breeding organisms and the physical disaster-bearing entities, respectively determines the risk grades of the breeding organisms and the physical disaster-bearing entities, and further generates a comprehensive risk assessment result for the target area, so that the actual risk condition can be more accurately reflected, and the scientificity and reliability of disaster warning and management decision of the mariculture area are improved.
Owner:NAT MARINE ENVIRONMENTAL FORECASTING CENT

Operating platform and construction method for shoal steel trestle steel pipe pile foundation guide hole

PendingCN121952076AGuaranteed accuracyImprove bite strengthArtificial islandsDerricks/mastsTidal waterWind wave
The invention belongs to the technical field of bridge construction equipment, and particularly relates to a shoal steel trestle steel pipe pile foundation guide hole operation platform and a construction method.The shoal steel trestle steel pipe pile foundation guide hole operation platform comprises a platform body, four supporting legs and an automatic leveling system, the four supporting legs are located at the four corners of the bottom face of the platform body respectively and connected with the platform body, and the automatic leveling system is in linkage fit with the platform body and the supporting legs; the automatic leveling system can cope with platform inclination caused by natural factors such as tidal water scouring and stormy waves in real time, and can resist the influence of three-level stormy waves; meanwhile, due to the design of an anti-skid cover plate, a cable storage groove and the like of the platform, potential safety hazards in the construction process are further eliminated, and the safety of constructors and equipment is comprehensively guaranteed; the platform main body is designed by adopting high-strength steel, so that the bearing capacity is high, and various drilling machines can be adapted; a reserved hoisting interface and a reserved cable storage groove facilitate installation and arrangement of equipment, and construction convenience is improved; the whole platform is simple in structure, convenient to operate and easy to maintain, and has good application and popularization value.
Owner:THE SECOND CONSTR OF CHINA CONSTR EIGHTH ENG DIV

A method for continuous shield tunneling under waterways

This invention relates to a method for continuous shield tunneling under waterways, belonging to the field of shield tunneling technology for under-waterway tunneling. The method includes: constructing a three-dimensional finite element model based on geological survey data, dividing the geological formation into units and inputting parameters, and dynamically applying tidal water level loads; iteratively updating pore water pressure, effective stress, and formation deformation through a nonlinear adjustment mechanism of elastic modulus-water content function and permeability coefficient, combined with a seepage-stress fully coupled algorithm; embedding the shield tunneling process to simulate the interaction between construction disturbance and tidal loads, optimizing shield construction parameters and water-stopping measures; real-time acquisition of monitoring data, correction of model parameters, and dynamic adjustment of construction parameters; simulating the formation response during multiple tidal cycles, evaluating the long-term cumulative effect of tidal water pressure, and optimizing water-stopping strategies and construction plans.
Owner:BEIJING URBAN RAIL TRANSIT CONSTRUCTION ENGINEERING CO LTD

Energy dissipation damp-proof device for miter gate of ship lock

The invention discloses an energy dissipation and tidal bore prevention device for a ship lock miter gate. Energy dissipation structures are evenly distributed between the downstream face of a damp-proof panel and the upstream face of the miter gate. The energy dissipation structure comprises a base and three energy dissipation assemblies. Each energy dissipation assembly comprises a connecting plate, a shell, a connecting shaft, an extrusion plate and a spring. The bottoms of the shells are fixed on the top surface of the base, and the three shells are W-shaped; one end of the connecting shaft axially penetrates into the top end of the shell along the shell; the extrusion plate and the spring are both arranged in the shell and are sequentially connected to the connecting shaft penetrating into the shell in a sleeving manner; the extrusion plate reciprocates along with the connecting shaft to extrude the spring; the other end of the connecting shaft is fixedly connected with the bottom surface of the connecting plate; the top surfaces of the three fixing plates are flush and are fixedly connected with the downstream surface of the moisture-proof panel; the bottom face of the base is connected with the miter gate. The miter gate can be well protected, impact of tidewater on the miter gate is avoided, and the situation that the tidewater crosses the miter gate to affect the salt content of river water is also avoided.
Owner:KHANCHZHOU DZINKHAN KANAL SEKOND CHENNEL KONSTRAKSHN INVESTMENT KO LTD +2

Construction platform for transmission tower foundation in shallow sea area

The utility model relates to the technical field of transmission tower construction, in particular to a construction platform for a transmission tower foundation in a shallow sea area, which comprises a tidal canal, a slurry area, a water pump, a slurry pump and a pouring operation area. The slurry pump conveys slurry in the slurry area to the grouting operation area to be deposited and accumulated to form a grouting platform, a plurality of pile foundation holes are dug in the range of the grouting platform, steel protection cylinders are installed in the pile foundation holes, a cement mixing soil layer is arranged at the bottoms of the pile foundation holes, and the lower portions of the steel protection cylinders are inserted into the cement mixing soil layer. The inner diameter of the cement mixing soil layer is matched with the outer diameter of the steel casing. According to the construction platform, on-site soil texture is utilized, water in a tidal canal is extracted to flush soil to form slurry, then the slurry is extracted to a pouring operation area to be deposited and accumulated layer by layer, a pouring platform meeting the construction requirement is formed, the construction period of construction is shortened, land resource investment is reduced, and project cost is saved.
Owner:POWERCHINA SEPCO1 ELECTRIC POWER CONSTR CO LTD

A method for determining a tidal water supplementing threshold of a tidal river channel

The application discloses a tidal river tidal water intake threshold value determination method in the technical field of river regulation, carries out the collection and analysis of basic data such as hydrology, topography, water quality, pollutants and salinity of a river and an outer sea, determines a river control section and water quality improvement targets and salinity control targets, establishes a tidal river hydrodynamic water quality mathematical model, simulates and calculates hydrodynamic water quality results under different engineering regulation schemes, and counts tidal water intake Q, water quality concentration C and salinity P of the river control section under different regulation schemes. According to the tidal river tidal water intake threshold value determination method, the reasonable tidal water intake for improving the water environment of the tidal river by using tidal resources can be determined, key technical support for determining the tidal river engineering regulation task and scale is provided, and the problem that the increase of the tidal water intake causes the invasion of salt water and affects the safety of production and living water is avoided.
Owner:FUJIAN PROVINCIAL INVESTIGATION DESIGN & RES INST OF WATER CONSERVANCY & HYDROPOWER

Danger removing and reinforcing system for reservoir hub project

The utility model belongs to the technical field of reservoir hub engineering, particularly relates to a danger-removing and reinforcing system for reservoir hub engineering, and provides the following scheme aiming at the problems that the existing danger-removing and reinforcing system cannot be dynamically adjusted along with the height of tide water and is limited in application scene: the danger-removing and reinforcing system comprises a wall body, the top end of the wall body is sleeved with a sleeving block, and an anchor rod penetrates out of the inside of the sleeving block. According to the system, induction heat generated by alternating current of the electromagnetic coil acts on the SMA memory spring, so that the SMA memory spring rapidly triggers preset recovery deformation, controllable driving force is generated to push the penetrating rod to slide along the limiting barrel, dynamic adjustment of the height of the wave wall is achieved, and the wave wall can flexibly adapt to complex hydrological scenes of different wave heights, tides and the like; the problem of a protection blind area of a traditional fixed-height wave wall is thoroughly solved, the synchronous air bag attenuates surge impact force through the buffering energy absorption principle, and the impact resistance and fatigue resistance of the structure are remarkably improved; the manual adjustment cost and the operation and maintenance difficulty are reduced, and the protection reliability in an extreme environment is improved.
Owner:ZHONGSHUI JUNXIN ENG SURVEY & DESIGN CO LTD

Multi-source surveying and mapping data dynamic three-dimensional visualization system and method based on digital twinning

This invention discloses a dynamic 3D visualization system and method for multi-source surveying and mapping data based on digital twins. The system includes a multi-source data acquisition and fusion module, a hydrological dynamic prediction model module, a digital twin engine module, a dynamic visualization and interactive inference module, an early warning module, a model self-calibration and inversion module, and a data storage and management module. This invention constructs a high-precision 3D model integrating land and water, and utilizes a dedicated splash prediction sub-model to quantify and predict the splash height and length of tidal water on the coastline, achieving accurate automatic delineation of hazardous areas and proactive early warning. A closed-loop self-calibration mechanism is introduced. By comparing measured and predicted splash data, and employing inversion analysis methods such as genetic algorithms, the system intelligently diagnoses and updates model deviations caused by changes in riverbed topography and river surface obstacles, thereby continuously improving prediction accuracy and intuitively revealing changes within the river channel, providing in-depth decision support for hydrological management and public safety.
Owner:JIANGXI HUASHUI SURVEYING & DESIGN CO LTD

Dynamic cable fatigue aging key position identification method and device in combination with tidal working condition, electronic equipment and storage medium

The invention discloses a dynamic cable fatigue aging key position identification method and device combined with tidal conditions, electronic equipment and a storage medium, and belongs to the field of ocean engineering monitoring, and the method comprises the steps: obtaining the attitude angle data of a target dynamic cable and the water level data of a target sea area; constructing a dynamic balance reference for the attitude angle data by adopting a sliding window mean value, and obtaining a relative angle offset sequence; extracting oscillation characteristics based on the relative angle offset sequence, and identifying effective bending events of each monitoring position; dividing tide working condition periods such as flood tide, ebb tide and flat tide according to the water level data change rate; and counting the bending frequency of each monitoring position under different tide working conditions, and taking the monitoring position with the maximum bending frequency as a key position of fatigue aging of the dynamic cable. By implementing the method, the problem that the fatigue aging key positions under different tide working conditions cannot be accurately positioned due to the fact that dynamic cable attitude characteristics are not analyzed in combination with tide water level changes in the prior art can be solved.
Owner:ELECTRIC POWER RES INST OF GUANGDONG POWER GRID CO LTD

Tide type water level adjusting overflow sensor based on water inlet and outlet flow algorithm

The invention discloses a tide type water level adjusting overflow sensor based on a water inlet and outlet flow algorithm. The tide type water level adjusting overflow sensor comprises an overflow cover, an overflow pipe, a tide type water level algorithm adjusting interval line, a tide type water quantity algorithm adjusting interval section, a conversion connecting pipe fitting and a water outlet pipe. Different algorithm changes of water flow longitudinal and cross section overflow quantity and water outlet quantity QY are formed through an overflow end, a horizontal overflow transverse seam and a vertical overflow longitudinal seam, so that the tide type water level algorithm adjusting interval line water level adjusting height H of the overflow sensor repeatedly and circularly changes in the rising process of flood tide and the falling process of ebb tide; algorithm changes of the interval height H and width W of the amphibious hydro-fluctuation belt of the artificial water body are directly conducted and adjusted, a sea tide type water level adjustment change mode is simulated, the water ecological structure of the amphibious hydro-fluctuation belt of the artificial water body is improved, a good water ecological environment is created for amphibious animal and plant habitats, and the water ecological environment is improved. The technical blank in the field of progressive and tidal water level regulation of amphibious water-level-fluctuating belts of artificial water bodies at home and abroad is filled.
Owner:CHENGDU MUJING ECOLOGICAL TECH CO LTD

An automatic lifting intertidal zone epineuston collecting device and investigation method

PendingCN122342383ATidal waterFishery
This invention discloses an automatically raising and lowering intertidal upper-layer aquatic organism collection device and survey method, comprising: a pile, a connecting cable, a guide rod, a collar, a limiting component, a float, a net frame, a collection net, a net tail support ring, and a sample collection container; the pile is a hollow tubular structure vertically inserted into the bottom of the mudflat; the guide rod is vertically set and its bottom end is fixed to the bottom of the mudflat; the connecting cable connects the pile and the guide rod; the collar is fitted onto the guide rod and can slide up and down along the guide rod; the float is fixedly connected to the collar; the net frame is fixedly connected to the float; the collection net is a conical net; the net tail support ring is set inside the net tail of the collection net; and the sample collection container is connected to the net tail of the collection net. This invention utilizes the buoyancy of the float to automatically raise and lower with the tidal water level, and the net opening always remains horizontal and facing the direction of the water flow, efficiently and passively collecting upper-layer aquatic organisms drifting with the water flow without human intervention, allowing for long-term continuous monitoring, and has the advantages of simple structure, convenient installation, and high sample purity.
Owner:EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI

Sea grass bed protection device based on tidal change monitoring

The utility model discloses a sea grass bed protection device based on tidal change monitoring, and belongs to the field of sea grass bed protection. Comprising a tide monitoring and early warning device and an automatic water storage and drainage device, wherein the tide monitoring and early warning device is used for predicting tide fluctuation time and tide height and sending out early warning signals; the automatic water storage and drainage device comprises a master controller, a plurality of automatic water storage and drainage devices, hollow contraction pipes, a water level measuring instrument and a drainage pump, the automatic water storage and drainage devices are distributed on the periphery of the to-be-protected seaweed bed, and the automatic water storage and drainage devices are sequentially connected and communicated with the periphery of the to-be-protected seaweed bed through the hollow contraction pipes to form a closed-loop communication structure; the automatic water storage and drainage device and the hollow shrinkage pipe sink to the seabed under the condition of being full of water, and can float in the water when being empty or under the conditions of half air and the like. The device can be flexibly and spatially distributed in groups according to the area of a sea grass bed, and the protection device is started before the change value of a tide height value caused by ocean tides exceeds a certain standard value to protect the stability of water grass root systems.
Owner:ZHONG GUO CHUAN BO JI TUAN HUAN JING FA ZHAN YOU XIAN GONG SI

A method for estimating the balanced water depth of a drainage channel of a power plant

The application discloses a method for estimating balance water depth of a power plant drainage open channel, comprising the following steps: obtaining full-tide hydrological measured historical data of a water area where the power plant is located; based on the historical data, performing data fitting on the balance water depth and the unit width flow to obtain a fitting curve; constructing a tidal current model and performing tidal current simulation calculation based on the tidal current model to obtain a tidal current simulation calculation result; based on the tidal current simulation calculation result, selecting open channel characteristic points and calculating the unit width flow at the positions of the characteristic points based on the open channel characteristic points; based on the fitting curve and the unit width flow at the positions of the characteristic points, calculating the balance water depth values of the open channel characteristic points to obtain an open channel balance water depth result. The application can be applied to an undeveloped sea area, the error of the estimation result of the balance water depth is low, and the estimation method is simple and effective.
Owner:TIANJIN RES INST FOR WATER TRANSPORT ENG M O T

Circumferential intermittent circulating system

The utility model discloses a circumferential discontinuous circulating system, and belongs to the technical field of agricultural cultivation and planting. The circumferential discontinuous circulating system comprises a culture pond, the bottom of the culture pond is provided with a flow guide channel, and a water treatment layer is arranged in the flow guide channel; a nutrition box is arranged at the top of the planting tower, a tidal pond is arranged at the bottom of the planting tower, a tidal water pump is installed in the tidal pond, a flow guide pipe penetrates through the center of the planting tower, the top of the flow guide pipe is communicated with the flow guide channel and the nutrition box, and the bottom of the flow guide pipe is communicated with the output end of the tidal water pump; the backflow pipe is respectively communicated with the tidal pond and the culture pond, and a purifier is arranged on the backflow pipe; according to the water and fertilizer integrated center, accurate water and fertilizer management is provided for the planting tower through periodical liquid supply and drainage tasks, circulating water is subjected to nutrition again through reasonable adjustment and then is supplied to the culture pond, and interactive utilization of resources is effectively improved.
Owner:YUNNAN LIANGMAO AGRI TECH CO LTD

Intertidal zone wetland lateral hydrological communication structure index construction method

PendingCN121958703AComplex mathematical operationsHydrometryTidal water
The invention discloses an intertidal zone wetland lateral hydrological communication structure index construction method, and relates to the technical field of wetland ecological hydrological communication, and the intertidal zone wetland lateral hydrological communication structure index construction method comprises the following steps: arranging uniform sampling points in an intertidal zone, and collecting structure index data; performing Z score centralization processing on the structure index data; and acquiring coefficients of the structure index on the first two axes by using a principal component analysis method, constructing a comprehensive hydrological connectivity index, and determining the hydrological connectivity. According to the method, the structure indexes playing an important role in tidal water movement are screened, the comprehensive hydrological connectivity index based on the tidal flat structure indexes is constructed, the hydrological connectivity of different positions of the surface of the intertidal wetland is quantified, and a grasp is provided for repairing, protecting and managing the coastal wetland.
Owner:BEIJING NORMAL UNIVERSITY

MULTI-LAYER ECOLOGICAL EMBANKMENTS PROTECT RIVERBANKS AND CANALS ACCORDING TO TIDAL ELEVATION

PendingVN8089UTidal waterVegetation
The useful solution refers to a multi-layered ecological embankment protecting riverbanks or canals according to tidal elevation. The embankment is arranged in relation to the peak tidal water level at the beginning of the dry season (1), the natural bank slope (6) and the natural bank crest (8), including a row of piles (3), a pile head connecting part or pile head beam block (2), an embankment layer (4), an embankment slope surface (5) and an aquatic plant area to reduce waves (7).The pile row (3) is arranged 2.0 m to 3.0 m from the sloping natural bank (6); the top of the pile row or the pile top connecting part or the pile top beam block is higher than the peak tide level of the dry season (1) from 0.2 m to 0.3 m; the sloping surface of the embankment layer (5) has a slope of 5% to 10%, gradually increasing from the pile row (3) towards the sloping natural bank (6), in which the highest area of ​​the sloping surface of the embankment layer (5) is lower than the peak tide level of the dry season (1) from 0.1 m to 0.2 m; the wave-reducing aquatic plant area (7) is arranged outside the pile row (3), 1.0 m to 2.0 m from the pile row and located at or near the peak tide level of the dry season (1) to reduce surface waves. This structure helps reduce wave action, retain sediment, create natural deposition, maintain moisture in the embankment, increase bank slope stability, and facilitate the recovery of coastal vegetation.
Owner:TRAN THANH TOAN

A method and separation device for separating polyester microplastics from microplastics containing high specific gravity substances

The present application relates to the technical field of polyester microplastic recycling, and particularly relates to a method and a device for separating polyester microplastics from microplastics containing high specific gravity substances. The device comprises an inclined chute body, a water inlet unit, a feed inlet unit, a tidal cofferdam structure, a heavy phase discharge unit, an ultrasonic-pneumatic mixed deagglomeration unit, a metal adsorption body, and a terminal vibrating screen and closed-loop water return system. A tidal water flow is formed by a PLC-controlled variable frequency water pump, a heavy phase settling zone is constructed upstream of the cofferdam, and the enrichment and discharge of high specific gravity substances are realized while intermittently discharging residues. Ultrasonic transducers and microporous aeration pipes work together to break up the agglomerates of powder dust, release the wrapped inorganic particles, and cooperate with the magnetic adsorption body to achieve secondary capture of metal iron scraps. The terminal vibrating screen completes the dehydration and recovery of polyester, and the separated water is reused after multi-stage precipitation. The present application can realize efficient separation of high specific gravity substances and polyester microplastics under the conditions of low energy consumption and water replenishment rate.
Owner:NINGBO DAFA NEW MATERIAL CO LTD +1

A control point-free low-altitude photogrammetry method for coastal terrain

This invention discloses a low-altitude photogrammetry method for coastal topography without control points, comprising the following steps: 1) back-optimizing the optimal flight parameters with a preset accuracy index as the constraint target; 2) acquiring high-precision position and three-axis attitude at each exposure time; 3) determining the coastline by combining a 3D model with tidal level calculation. This invention provides an effective solution to the problems of difficulty in establishing coastal control points and the infeasibility of traditional point-laying methods due to frequent tidal fluctuations. By optimizing flight design, considering exposure delay, and employing high-precision positioning and attitude determination methods, this invention significantly improves the reliability of aerial photogrammetry results under control point-free conditions. By combining aerial photogrammetry and tidal level calculation to determine the coastline position, this method quickly identifies the coastline determination problem in current coastal topography surveys, solving the problem of inconsistent measurements when coastline traces are not obvious.
Owner:TIANJIN SURVEYING & MAPPING INST CO LTD

Risk assessment method and device for mariculture area

According to the mariculture area risk assessment method and device provided by the invention, by constructing the multi-dimensional dynamic element coupling simulation model, joint simulation of various dynamic elements such as water depth topography, an atmosphere forced field, a typhoon moving path, a tide boundary and seawater temperature and salt flow is realized, and more real and fine marine environment characteristic information can be obtained. Bidirectional data exchange is carried out between the storm model and the hydrodynamic model, so that key parameters such as sea wave radiation stress, tidal current speed and tidal water level are synchronously updated, and the simulation precision under the extreme sea condition is remarkably improved. On the basis, the risk levels of the cultured organisms and the physical disaster-bearing entities are respectively determined by combining the differentiation characteristics of the cultured organisms and the physical disaster-bearing entities, and a comprehensive risk assessment result oriented to the target area is further generated, so that the actual risk condition can be reflected more accurately, and the scientificity and reliability of disaster early warning and management decision making of the mariculture area are improved.
Owner:NAT MARINE ENVIRONMENTAL FORECASTING CENT

Tidal water special effect device for performance and control method

The invention discloses a tidal water special effect device for performance and a control method. A flexible airbag; an air storage unit; an air compressor; a pipeline; an electric solenoid valve group; an electric deflation valve; a water level sensor; the electric solenoid valve group controls the air storage unit to inflate the flexible air bag, so that the volume of the flexible air bag is increased, and the water level of the pool is raised to submerge the lifting platform. Through unique combination of high-pressure pneumatic driving and flexible air bag expansion, the problem that a traditional water pump system is slow in response is fundamentally solved, the water level rapidly rises and falls within 3-10 seconds, and the harsh requirement for instant special effects of modern high-end performance is met.
Owner:JINAN SUPER CONTROL ELECTRICAL EQUIP CO LTD

Macromolecular polyethylene plate rubber fender device

ActiveCN224173263UAvoid blind spots in protectionImprove protection reliabilityClimate change adaptationShipping equipmentTidal waterWater level rise
The utility model discloses a macromolecule polyethylene plate rubber fender device which comprises an installation base and a rubber protection plate, two sets of symmetrical lifting sliding grooves are formed in one side of the installation base, limiting blocks are fixedly connected to the upper end and the lower end of the middle of one side of the installation base, and a vertical guide rod is fixedly connected between the two sets of limiting blocks. The vertical guide rods are connected with a lifting plate in a sliding manner; through the arrangement of the buoy and the lifting structure, the height can be automatically adjusted according to the real-time change of the water level in complex water area environments such as seaports obviously affected by tide water or inland wharfs with large water level difference in rainy seasons and dry seasons, and when the water level rises, the buoyancy borne by the buoy is increased; the lifting plate is driven to stably ascend in the lifting sliding groove of the mounting seat along the vertical guide rod; when the water level descends, the floating barrels drive the lifting plate to descend, it is ensured that the side protection device is located at the optimal protection position all the time, protection blind areas caused by water level fluctuation are avoided, and the protection reliability in the complex water level environment is effectively improved.
Owner:NINGJIN JUTAI CHEM & PLASTIC CO LTD

Flexible scour protection and siltation promoting structure for strong tidal waters

ActiveCN117721757BImprove deceleration energy consumption effectReduce impact damageCoastlines protectionTidal waterReinforced concrete
The application discloses a flexible anti-impact and siltation promoting structure for strong tidal water area, which comprises a reinforced concrete block and a siltation promoting component, the reinforced concrete block is a prefabricated piece of reinforced concrete structure, the reinforced concrete block and the simulated water grass block are arranged to cooperate with the reinforced concrete block to reduce the impact damage of strong tide on the river bank or the protection area; the auxiliary assembly and the locking screw are arranged to link the connecting sleeve with the fixed rod to cooperate with the simulated water grass belt to improve the energy consumption effect of the siltation promoting component on the water flow; the dredging structure is arranged to drive the dredging push frame to flow the silt in the block body to the lower part of the block pile by the water flow power, thereby improving the use efficiency of the siltation promoting structure and the sedimentation protection effect of the silt at the bottom of the anti-impact and siltation promoting structure.
Owner:ZHEJIANG INST OF HYDRAULICS & ESTUARY