142 results about "Tidal water" patented technology

The invention discloses a high-beach difficult land mangrove plant restoration method, and relates to the technical field of wetland ecological restoration. Through the design of the concave planting pits and the improvement technology of the compound matrix, the problems of insufficient tide immersion and soil hardening in existing high beach remediation are solved. According to the method, planting pits with specific sizes are dug, 2 / 3 of original soil is removed, and a composite matrix of a coco coir layer, a humus layer and a crushed soil layer is backfilled, so that the concave microhabitat with the surface layer 10-20 cm lower than the native mud flat is formed. The coco coir layer improves the air permeability of the soil, the humus layer provides organic nutrients, and the crushed soil layer enhances the stability of the root system. The concave structure prolongs the residence time of tidal water, promotes benthic organisms such as crabs to move and improves the soil quality. By means of the method, the survival rate of mangrove plants in the kaolin mud flat at the tail of the pond under the xiamen reaches 85% or above, and the forestation problem caused by high-beach soil hardening and insufficient tide flooding is solved.

The invention relates to the technical field of tidal water conservancy power generation, and provides a tidal power-based power station and a power generation method thereof.The power station comprises a first infrastructure body, a second infrastructure body, a power generation device, an adjusting device and an energy storage device; the first infrastructure body and the second infrastructure body are oppositely arranged, so that a flow guide channel for tidal water to pass through is formed between the first infrastructure body and the second infrastructure body; the power generation device is arranged in the flow guide channel and used for generating power under the action of tide water in the flow guide channel and outputting electric energy; the adjusting device is used for adjusting the flow, flow speed and flow direction of the tide water allowed to pass through the flow guide channel according to the fluctuation quantity of the tide water flow speed; the energy storage device is connected with the power generation device and used for storing electric energy output by the power generation device and outputting the electric energy externally for grid connection. Fluctuation of output electric energy of the power generation device can be effectively buffered, flexible grid connection of the output electric energy of the power generation station is achieved, and the overall operation stability of the tidal power generation station is effectively improved.

The invention provides a seawater direct cooling unit circulating water frequency conversion optimization control method considering tides, which provides a method for correcting a model of a frequency conversion circulating water pump by a seawater tide water level, establishes a circulating water pump optimization scheduling energy consumption model based on a micro output theory, and establishes a cold end optimization mathematical model for coupling a condenser and a steam turbine low-pressure cylinder; based on the Bayesian optimization algorithm, optimizing calculation of the target frequency of the optimal working point of parallel operation of the frequency conversion circulating pump is conducted, and the optimal operation mode of the circulating pump under the unit load, the circulating water inlet water temperature and the seawater level and a quick calculation method of the frequency conversion frequency are given; constructing a multiple regression model, and fitting a target frequency polynomial function by adopting a maximum likelihood method to simplify the workload of DCS logic configuration; the start-stop time of the circulating pump is reasonably arranged in combination with predicted data of the tidal water level, so that frequent start-stop of the circulating pump near a critical point and at a low water level is avoided, and equipment loss and energy consumption are reduced; and the seawater direct cooling unit circulating water frequency conversion optimization DCS closed-loop real-time optimization control is realized.

The utility model discloses a coastal wetland shallow underground environment monitoring device, which belongs to the field of coastal wetland environment research and comprises an outer shell, a sealing cover A is arranged at the upper end of the outer shell, a sealing flange is arranged at the lower end of the outer shell, and a sensor mounting seat is arranged on the sealing flange. A plurality of water quality sensors for collecting water quality data are mounted on the sensor mounting seat, a battery and a control circuit board are arranged in the outer shell, and the battery and the plurality of water quality sensors are electrically connected with the control circuit board. According to the utility model, the sensor is buried underground by using the monitoring vertical pipe structure, and the influence of tidal water on a monitored target water source can be effectively isolated by means of the floating ventilation structure, so that the monitoring result is more accurate.

The utility model provides a tidal power generation experiment water tank for simulating tide fluctuation. The experimental water tank is composed of a partition plate, left and right reservoirs, a central dam body, a valve, a hydraulic generator, a power meter, a water level gauge, a detachable bidirectional air pump, left and right air guide channels, left and right air bags and left and right air pipes. The left reservoir and the right reservoir are separated by a central dam body and divided into an upper cavity and a lower cavity by a partition plate, and a valve, a hydro-generator, an electric energy meter and a water level gauge in the upper cavity are electrically connected. In the lower cavity, a left air bag, a left air pipe, a left air guide channel and a left air pump port are sequentially connected, and a right air bag, a right air pipe, a right air guide channel and a right air pump port are sequentially connected; the detachable air pump is located on the upper cover of the experiment box, is connected to the air pump opening in one side and is sequentially connected with the air guide channel, the air pipe and the air bag in the side. The experimental water tank can be used for tidal power generation teaching experiments and has portability and operability.

The invention relates to the technical field of bridge construction, and discloses a seasonal water level coping device in river-crossing bridge lower foundation construction, which comprises a pier and an overwater bearing platform on one side of the pier, the side of the overwater bearing platform close to the pier is fixedly connected to the pier, and the side of the overwater bearing platform away from the pier is provided with a river pier platform. The overwater bearing platform is located in the center of the river abutment and fixedly connected with the river abutment, a water seepage grid is arranged on the side, close to the river abutment, of the overwater bearing platform, and a buffering supporting plate is arranged on the side, perpendicular to the river abutment, of the overwater bearing platform. In order to prevent the bridge pier structure from being not completely solidified and limited and reduce water flow impact on the two sides, buffer structures can be built on the two sides of the bottom of the pier abutment, and the buffer supporting plate shakes back and forth through the buffer assembly on one side along with seasonal tide water flow velocity change in a river, so that impact on the bottom of the bridge pier is reduced; and therefore, the overall buffering prevention effect of the device is improved.

The invention relates to the technical field of HDPE pipeline shipping, in particular to an HDPE pipeline shipping track construction method which comprises the following steps: S1, acquiring calculation parameters of HDPE pipe joints and ballast blocks; s2, calculating the total weight and H draft of the HDPE pipe section; s3, constructing a pipeline model; s4, the pipeline model constructed in the step S3 is used for simulating the working condition that the front end of the HDPE pipe section enters water and the working condition that the tail end of the HDPE pipe section leaves the slope and is subjected to back pressure when the HDPE pipe section runs on rails with different slope ratios under the condition of different tidal water levels; the maximum counter-force N1 of the trolley in the water entering process of the HDPE pipe section and the tail end counter-force N2 of the trolley in the slope leaving process of the HDPE pipe section are obtained; s5, N1 and N2 are compared with the working load N0 of the trolley, if N1 is smaller than or equal to N0 and N2 is smaller than or equal to N0, the slope ratio design of the section of rail passes checking calculation, and the next step is carried out; otherwise, adjusting the slope ratio of the section of track, and repeating the step S4 until the section of track meets the conditions that N1 is smaller than or equal to N0 and N2 is smaller than or equal to N0; and S6, repeating the steps S4-S5 until all the track slope ratios pass the checking calculation. According to the method, reasonable distribution of the track slope ratio is achieved by refining the slope ratio adjustment strategy.

The invention discloses a spartina alterniflora management method based on mechanical mowing and tidal water level regulation, which comprises the following steps: using mechanical mowing equipment to mow spartina alterniflora in the growth peak period of spartina alterniflora, and cutting the overground part to the height less than 5cm; dividing the treatment area into high, medium and low tidal flat according to the tidal flat elevation, and establishing a dam filled with sand and covered with degradable cloth in each area; adjusting the height of the dam according to the tidal cycle and the tidal flat elevation, so that the high tidal flat area is submerged by natural saline water at least twice a month during the large tide; after the spartina alterniflora is treated, the sandy dam and the anti-scouring cloth are gradually removed, the original ecological system of the wetland is restored, and local plants are planted to promote natural restoration. According to the method, low-cost, high-efficiency and eco-friendly long-term treatment of the spartina alterniflora can be realized in a large-area mud flat area, so that the operability, sustainability and environmental friendliness of the treatment effect are remarkably improved, and the method has wide popularization and application values.

The invention discloses a tidal flat shallow stratum deformation prediction device and method, and relates to the field of stratum deformation prediction.The tidal flat shallow stratum deformation prediction device comprises the steps that a plurality of node components are connected in sequence and vertically penetrate into a shallow stratum of a target tidal flat monitoring point; the rainfall sensor and the tide sensor are respectively arranged in a set radius range of a target tidal flat monitoring point; the controller is respectively connected with a node part at the tail part of the sensing array, the rainfall sensor and the tide sensor; the three-axis acceleration sensor is used for collecting three-axis acceleration of the corresponding node part at different moments; the controller is used for acquiring an original data set of a target tidal flat monitoring point; determining N groups of state sequences based on the feature sequences of the N data clusters, the rainfall sequence and the tide height sequence, and inputting each group of state sequences into different trained prediction models to obtain N deformation sequences; and based on the N deformation sequences, determining future deformation of the shallow stratum of the target tidal flat monitoring point. Effective prediction of future deformation of the tidal flat shallow stratum is realized.

The invention discloses a method for discriminating a topographic reconstruction elevation interval of a retrofit beach-returning ecological restoration project, and relates to the technical field of topographic reconstruction, and the method comprises the steps: building an elevation relation between a tidal water level and an actually measured topography of a to-be-restored region of a culture pond, and carrying out the elevation assignment of the actually measured tidal water level in a hydrological annual period range, determining a regional tide submerging elevation; determining a terrain reconstruction elevation interval of the retrofit beach restoration area through calculation of a tide water level elevation and a spatial elevation between current actual measurement terrains of a to-be-restored area of the culture pond; and according to the determined elevation transformation interval, a filling area, a bulldozing area and a reserved area of the rebay beach restoration area are defined so as to guide construction of rebay beach restoration ecological restoration engineering. By utilizing the method provided by the invention, accurate judgment of the topographic reconstruction elevation interval of the retrofit beach-returning ecological restoration area can be realized, implementation of retrofit beach-returning ecological restoration engineering is effectively guided, restoration of a water system of the retrofit beach-returning ecological restoration area is facilitated, and the ecological restoration efficiency of the coastal culture wasteland is improved.

The invention belongs to the technical field of ocean water color remote sensing, and discloses a water depth inversion method, which comprises the following steps: acquiring satellite remote sensing data, tidal water level data and a sea chart of a research area; obtaining water-leaving radiance based on the satellite remote sensing data; carrying out vectorization processing on the sea chart to obtain water depth point data; matching the satellite remote sensing image data with the water depth point data, and extracting water leaving radiance and water depth information of a corresponding wave band; carrying out tide correction based on the imaging time of the satellite remote sensing image data in combination with the tide water level data to obtain corrected water depth information; constructing a water depth inversion model based on the off-water radiance and the corrected water depth information; and verifying the water depth inversion model, and performing water depth inversion of the research area based on the water depth inversion model passing the verification. According to the technical scheme, the advantages of various data can be fully utilized, the precision and reliability of water depth inversion are improved, and the method can be applied to all time periods.

This invention discloses an in-situ observation method and device for tidal flat sedimentary bedding, belonging to the field of tidal flat geomorphological sedimentary observation technology. The observation method includes: laying settlement plates on the tidal flat surface at the in-situ observation location of tidal flat sedimentary bedding; and laying new settlement plates on the sediment of the previous settlement plate at intervals based on the ebb and flow of the tide. After reaching a preset number of settlement plates, collecting the sediment on each settlement plate during low tide and retrieving the settlement plates; and quantitatively analyzing the bedding data and bedding characteristic indicators of the sediment on each settlement plate. The observation device includes a support frame with a timing control unit. The timing control unit includes a holder and a controller. The holder holds multiple layers of settlement plates, and the holder releases the settlement plates one by one according to the interval and the number of releases. This method can obtain the morphological characteristics of tidal flat sedimentary bedding under tidal conditions, providing strong support for the study of the formation process and carbon sequestration mechanism of tidal flat sedimentary bedding.

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.

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.

The application discloses a tidal flow artificial wetland tail water sediment secondary degradation device and a use method, and belongs to the technical field of tidal flow wetland sediment treatment. The device comprises a rigid support and a rotating motor. The top of the rigid support is supported by a rigid supporting plate, and a tail end plate is installed on the rigid supporting plate. A plurality of telescopic mechanisms are installed on the rigid supporting plate. The rotating motor is suitable for driving the plurality of telescopic mechanisms to extend and retract. The output end of the plurality of telescopic mechanisms is provided with a scraper, and the scraper moves on the rigid supporting plate. The rigid supporting plate is arranged to be inclined, and a mounting notched plate is arranged on the side away from the tail end plate. The device further comprises a stirring motor, which is installed in the mounting notched plate. The bottom of the stirring motor is provided with a slurry conveying part, which pumps the stirred slurry to the surface of the wetland soil layer. The application can ensure that the urban tail water can be fully degraded twice by stirring or depositing the mixture in the tidal water flow during the rising tide and the falling tide of the tidal flow artificial wetland, and then conveying the mixture back to the wetland.

The invention discloses an efficient dredging device in an underwater limited space and a construction method of the efficient dredging device, and belongs to the technical field of underwater sludge cleaning. The desilting device comprises a vertical steel frame, a horizontal cross arm, RTK measuring equipment, a bottom device, a water suction opening, a flushing opening, a balancing weight, a molten steel pipe, a transparent rubber steel wire hose and a foam buoy. Wherein the vertical steel frame is horizontally welded with the horizontal cross brace; the bottom device is welded to the bottom of the vertical steel frame, a water suction opening is formed in the top of the bottom device, and a water suction opening and a water outlet are correspondingly formed in the bottom. According to the method, channel steel, steel pipes, steel plates, slurry pumps, RTK measuring equipment and other conventional materials and equipment are adopted, the desilting construction conditions of the underwater limited space can be met, construction is not affected by tide fluctuation, wind power and other natural factors, the construction period can be shortened, the underwater desilting quality can be guaranteed, an original revetment cannot be damaged in the construction process, and the construction period is shortened. And the overall construction cost is greatly reduced.

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.

The invention discloses an ecological restoration method for a bird habitat in a waste salt pan, which belongs to the technical field of ecological restoration and comprises the steps of arranging a shoal area, arranging a shallow water area and a light beach, arranging a circulation channel and building a concave polder embankment to control the water inlet and outlet speed of the salt pan. A shallow water area and a light beach are constructed in the waste salt pan to form a salt pan shoal habitat, and a water system network is formed in each shoal area space through a shallow ditch; the waste salt pan repaired by the method provides a rest and foraging place for waterfowls; along with the periodical change of the rising and falling tide water level of the salt pan, a sustainable waterfowl habitat for maintaining dynamic balance among benthic organisms, waterfowls and planktons is formed, and the restoration of the natural ecology of the waste salt pan and the restoration of biological diversity are accelerated; later-stage maintenance is easy, manual weeding and natural bait feeding are not needed, water level control is simple and convenient, cost is saved, and excessive funds and manpower do not need to be input.

The invention discloses seawater chlorella with high ammonia nitrogen removal rate and high starch accumulation capacity as well as a culture method and application of the seawater chlorella. The problems that the growth rate is reduced and the ammonia nitrogen treatment efficiency is reduced due to the salt stress effect when a traditional bioremediation technology is applied to a tidal basin are solved. According to the method, the seawater chlorella with high adaptability is utilized, the ammonia nitrogen absorption capacity and the starch accumulation amount of the seawater chlorella are remarkably improved through the salt synergistic effect in combination with the immobilization technology, and therefore effective treatment on the ammonia nitrogen pollution of the tidal basin is achieved. Under the conditions that the salinity is 0.5% and the ammonia nitrogen concentration is 3 mg / L, the ammonia nitrogen removal rate of the seawater chlorella reaches 93.60%, the starch accumulation amount reaches 10.06 mu g / 10 < 6 > cells, and the ammonia nitrogen removal rate and the starch accumulation amount are increased by 23.2% and 58.4% respectively. The method has the advantages of simple and convenient process, high efficiency, strong environmental adaptability and the like, and is suitable for ammonia nitrogen pollution treatment and microalgae resource utilization in tidal basins.

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.

The invention provides a fish and vegetable symbiotic intelligent system which comprises three-level linkage units, namely an aquaculture area, a nitrifying bacteria cultivation area and a tidal water culture planting area, and each area is provided with an independent function module and is integrated with a central control unit. The data monitoring center is connected with the aquaculture area function module through an industrial bus and issues an environment regulation and control instruction. The aquaculture area central control unit drives an underwater air injection device to adjust dissolved oxygen based on the instruction, and a nitrification instruction is generated and sent to the nitrifying bacterium cultivation area. After receiving the instruction, the nitrifying bacteria cultivation area controls the flow speed and temperature of a circulating sprayer, generates an irrigation instruction and sends the irrigation instruction to the tidal water culture planting area. The central control unit of the tidal hydroponic planting area controls an overflow siphon according to the irrigation instruction, and tidal irrigation is achieved by connecting a water level sensor. According to the system, efficient collaborative operation of aquaculture, nitrobacterium cultivation and tidal water culture planting can be achieved, and the automation degree, the resource utilization efficiency and the operation stability of the system are improved.

The invention relates to the technical field of wetland purification, and discloses a modularized composite wetland system capable of adjusting hydrodynamic conditions and a use method. The composite wetland system comprises a peripheral frame body assembly which is divided into a water inlet area, an underflow wetland area and a water outlet area which are communicated in sequence; the undercurrent wet area comprises a plurality of filler boxes, flow guide pieces and connecting pieces, the filler boxes are arranged in an array mode, the connecting pieces are arranged at the corners of the filler boxes, and the flow guide pieces are arranged between any two adjacent connecting pieces; the composite wetland system has a flow pushing and water distributing working state, a partitioned flow pushing and water distributing working state, a tide type water distributing working state, a labyrinth type water distributing working state, a local maintenance working state and a composite working state. The modularized prefabricated parts are adopted, the construction period is short when the prefabricated parts are arranged on site, and economic benefits are improved. When the purification effect becomes poor or is blocked in the long-term operation of the composite wetland system, the hydrodynamic condition can be adjusted, the purification capacity of the composite wetland system is improved, and the operation cost is low.

The utility model discloses an initial tide device, which comprises a box body, a water tank, a water tank and a water tank, and is characterized in that the box body is provided with accommodating grooves; the conveying device comprises an input end and an output end, the input end is located in the containing groove, and the output end is located on the outer side of the containing groove; the aerial fog water pipe comprises a main pipe and a plurality of aerial fog branch pipes, the main pipe comprises two parallel pipes, a connecting transverse pipe arranged between the two parallel pipes and a water inlet pipe, the aerial fog branch pipes are fixed between the two parallel pipes, the aerial fog water pipe is provided with a plurality of spray nozzles, and the water inlet pipe is connected with the connecting transverse pipe; the aerial fog water pipe is arranged in the containing groove and located below the conveying device. According to the utility model, water is introduced into the header pipe through the clean water pipe, and is finally sprayed out from the spray nozzle, so that the interior of the accommodating groove is atomized, the sun-dried raw tea can be primarily drenched, the sun-dried raw tea is conveyed to the output end from the conveying end by the conveying device after the primary drenching is completed, and the sun-dried raw tea output from the output end can be subjected to the next procedure; the initial tide can be automatically completed, and the initial tide efficiency is high.

The invention discloses a berthing method for a special-shaped buoyancy tank type floating dock. The berthing method comprises the following steps that a, a berthing bulwark structure is manufactured; b, a tool scaffold is erected on the reverse side of the berthing bulwark structure; c, a berthing bulwark structure is installed; d, a rubber fender is placed at the position of the berthing bulwark structure; e, the rubber fender is relatively fixed to the wharf through a fender fixing cable, and the other end of the fender fixing cable is wound around a bollard of the wharf; f, a balance weight is installed on the smooth face of the berthing bulwark structure, and two dismantling lifting lugs are installed on the upper portion of the berthing bulwark structure; and g, the dock crane is connected with the two dismantling lifting lugs on the berthing bulwark structure through steel wire ropes, the connecting part of the dock crane and the floating dock is cut off, and the berthing bulwark structure is dismantled. The berthing method is not affected by tide water changes, it is guaranteed that the fender between the floating dock and the wharf plays a protection role all the time, meanwhile, the form of the rubber fender does not need to be changed, and the risk that the floating dock collides with the wharf in the refitting period of the floating dock can be completely eliminated.

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.

The invention discloses a multi-source surveying and mapping data dynamic three-dimensional visualization system and method based on digital twinning. The system comprises a multi-source data acquisition and fusion module, a hydrological dynamic prediction model module, a digital twin engine module, a dynamic visualization and interactive deduction module, an early warning module, a model self-calibration and inversion module and a data storage and management module. According to the method, the land and water integrated high-precision three-dimensional model is constructed, and the sputtering height and length of the tidal water to the coastal area are quantitatively predicted by using the special sputtering prediction sub-model, so that accurate dangerous area automatic demarcation and active early warning are realized. A closed-loop self-calibration mechanism is introduced, and model deviation caused by river bed terrain and river surface obstacle changes is intelligently diagnosed and updated by comparing actually measured and predicted sputtering data and adopting inversion analysis methods such as a genetic algorithm, so that the prediction precision is continuously improved, and internal changes of a river channel are visually revealed; and deep decision support is provided for hydrological management and public safety.

The application discloses a kind of tidal creek fluctuation tidal fish investigation sampling floating platform and quantitative evaluation method, it is related to tidal creek fish investigation technical field, floating platform includes floating platform frame and investigation sampling net, investigation sampling net includes by galvanized pipe welding net mouth.The floating platform of the present application is set down corresponding fishing net to collect respectively when rising tide and ebb tide, and reads the flowmeter data to calculate tidal water flow, can comprehensively collect aquatic organism and nutrient in tidal creek when rising tide and ebb tide, make up the deficiency of relevant data collection when rising tide of existing research, realize the accurate monitoring and quantitative evaluation of tidal creek biology and material transport, can comprehensively understand the species, quantity and distribution of tidal creek biology when rising tide and ebb tide, and the change of tidal flow, to understand the situation of tidal creek biology and material transport in depth, provide important data support and decision basis for relevant research and ecological protection.

The utility model provides an adjustable tidal water area ecological bank protection module and a bank protection structure, and relates to the technical field of hydraulic engineering, the adjustable tidal water area ecological bank protection module comprises a bank protection module body and hemp ropes, an accommodating space is arranged in the bank protection module body, and fillers are arranged in the accommodating space; matrix-shaped through holes are formed in the outer surface of the bank protection module body and used for communicating the containing space with the outside. The hemp ropes are connected with the corresponding through holes so as to be used for connecting the adjacent bank protection module bodies, and latticed structures are woven on the corresponding outer surfaces. The technical problems that in the prior art, in a tidal water area, due to changes of the water level and the salinity, the revetment module cannot adapt to water flow impact and erosion, detachable use cannot be achieved, and the ecological compatibility is poor are solved.

The utility model belongs to the field of marine ecological environment engineering. The experimental device for monitoring the hydrodynamic shear stress of the mangrove forest comprises a water tank and a display, seawater is contained in the water tank, a simulated mud flat is arranged on one side in the water tank, mangrove seedlings are planted on the simulated mud flat, a force sensor is installed beside a mangrove seedling model, and the force sensor is connected with the display. A wave simulation mechanism is arranged on the other side, opposite to the simulation mud flat, of the water tank; the wave simulation mechanism comprises a mounting plate arranged at the top of the water tank, a driving motor is arranged on the mounting plate, an output shaft of the driving motor is connected with a telescopic rod, the end part of the telescopic rod is connected with a wave shifting plate, and the wave shifting plate is used for driving the wave shifting plate to move in the water tank along the length direction of the water tank so as to simulate waves; an adjusting switch is arranged on the driving motor; the display is mounted on one side of the exterior of the water tank; and the display is electrically connected with the force sensor. The device can repeatedly simulate the situation that tidal water scours the mud flat in a laboratory and record the shear stress generated on the mangrove seedlings.

The utility model belongs to the field of determination of wetland soil parameters, and particularly relates to a device suitable for coastal wetland soil respiration measurement, in particular to in-situ measurement equipment, which can be used for measuring the respiration of the coastal wetland soil without hindering the release effect of tidal water fluctuation on carbon dioxide in the coastal wetland soil. The interference of accumulated water in the breathing ring on a soil breathing measurement result after ebb tide is prevented. The device comprises a sealing device, a permeable ring, an indication cover and a fixing ring, the sealing device is composed of a stainless steel ring column with a built-in thread and an external hand lifting ring, and the hand lifting ring is fixedly connected with the stainless steel ring column in a welding mode. The permeable ring is composed of an external threaded stainless steel ring column with a hole, and is screwed with the sealer through threads; the indicating cover is composed of a stainless steel disc, and the indicating cover and the water permeable ring are fixedly connected in a welding mode. The fixing ring is composed of a stainless steel ring, and the fixing ring can be directly and completely inserted into soil to be detected.