1187results about "Marine site engineering" patented technology

The invention relates to the technical field of reservoir bedrock anti-seepage grouting, and discloses a reservoir bedrock anti-seepage grouting method which comprises the following steps: acquiring fracture data through geological exploration, and constructing a reservoir bedrock fracture distribution model; simulating a flow path and permeability characteristics of the slurry in the fracture based on the fracture model; the grouting pressure and flow are determined through an optimization algorithm, and a grouting scheme is formulated; screening grouting materials according to fracture characteristics, and analyzing stress-strain and permeability of the grouting materials; a construction process is formulated, the grouting state is monitored in real time, and parameters are dynamically adjusted; and after grouting, carrying out permeation and pressure test to evaluate whether the curing effect reaches the standard or not. Based on the three-dimensional fracture structure modeling and flow field simulation technology, high-precision recognition and dynamic evolution tracking of the fracture permeation path in the complex rock mass of the reservoir bank are achieved, so that grouting hole layout is more accurate, the slurry flow direction is more controllable, and the method is different from a point-selecting grouting mode of a traditional empirical method.

The invention discloses an environment-friendly high-strength water-stop belt and a preparation method thereof, and relates to the technical field of high-molecular compound composition water-stop belts. The environment-friendly high-strength water-stop belt is prepared from the following components in parts by mass: 100 parts of ethylene propylene diene monomer, 40 to 70 parts of reinforcing filler, 10 to 25 parts of environment-friendly plasticizer, 1 to 5 parts of interface modifier, 1.5 to 3.5 parts of vulcanizing agent, 3 to 8 parts of active agent, 1 to 3 parts of anti-aging agent and 5 to 15 parts of flame retardant. White carbon black and calcium carbonate are adopted as reinforcing filler to replace traditional carbon black, and energy consumption and pollution emission in the production process are remarkably reduced. By optimizing the formula and the preparation process, the tensile strength, the elongation at break, the tearing strength and other mechanical properties of the waterstop are remarkably improved. Aluminum hydroxide is added as a flame retardant, absorbs heat during thermal decomposition and forms a barrier layer, so that oxygen is effectively diluted, and fire spreading is prevented.

The invention discloses a method for rapidly optimizing the wave absorption performance of an underwater ecological submerged dike, and belongs to the technical field of ocean engineering, and the method comprises the following steps: taking an oyster reef as a research object, comprehensively considering marine environment factors and ecological submerged reef arrangement which influence the wave absorption performance of the ecological submerged reef, carrying out dimensionless processing, and determining seven independent variable parameters: relative water depth, water depth, water depth, water depth and water depth; the wave steep, the relative immersion depth of the oyster reefs, the relative length of the oyster reefs, the relative distance between the oyster reefs, the riverbed gradient and the number of the oyster reefs are determined. According to the method, nonlinear influences between all variable parameters are considered, a second-order optimal design model is suggested, an information matrix representing how changes of all factors affect variances and covariances of model parameters is calculated, and an optimal design scheme is obtained by maximizing eigenvalues of an inverse matrix. Compared with the traditional full-factor test design, the method has the advantages that the number of design groups is reduced on the premise of ensuring that the test combination is as comprehensive as possible, and the time of physical model experiment and numerical simulation calculation is greatly shortened.

The invention belongs to the technical field of ecological restoration and wetland engineering, and discloses an ecological corridor-based abandoned fishpond ecological restoration method, which comprises the following steps: S1, land forest restoration: planting saline-alkaline tolerant vegetation around an abandoned fishpond and in a land and abandoned fishpond transition area in a layered manner; s2, mangrove forest wetland construction: performing microtopography modification to adjust the bottom mud elevation, and planting mangrove forest plants in a layered manner; s3, ecological corridor construction: constructing an ecological corridor on one side of the abandoned fishpond and the land, and constructing an ecological corridor on one side of the abandoned fishpond and the ocean; s4, ecological monitoring and maintenance: carrying out hydrological, tidal and biological detection regularly; the three-dimensional ecological corridor system of'land forest-mangrove forest wetland-ocean 'is constructed, and the abandoned fish pond is transformed into the mangrove forest wetland, so that not only are biodiversity improvement and ecosystem connectivity realized, but also stable migration and inhabitation space can be provided for terrestrial and aquatic organisms.

The invention relates to a sandy coast back shore ecological restoration multi-objective optimization method based on an NSGA-II algorithm, and the method comprises the following steps: S1, selecting a damaged sandy coast, carrying out the background investigation, and calculating a wave climbing value; s2, determining a vegetation arrangement range of the damaged sandy coast; s3, beach shoulder sand supplement of beach shoulder width is conducted on different areas of the damaged sandy coast, and sand dune sand supplement of an artificial sand dune is conducted; s4, calculating the wind erosion prevention efficiency and the wave erosion prevention efficiency of the dominant vegetation; s5, constructing a sandy coast back shore ecological restoration multi-objective optimization function and constraint conditions; s6, solving the multi-objective optimization function based on an NSGA-II algorithm to obtain an optimal vegetation configuration scheme set; s7, based on actual conditions, selecting an optimal vegetation configuration scheme for planting; and S8, detecting vegetation data after planting, and starting a reseeding program when the survival rate of vegetation is lower than a threshold value. Compared with the prior art, the method has the advantages that the fitness of the multi-power environment is improved, and then the windproof and wave-resistant effects are optimized.

The invention relates to the field of civil engineering waterproof materials, in particular to a nano bentonite-polymer composite material with high salt tolerance and a preparation method thereof, and the nano bentonite-polymer composite material is especially suitable for a sodium-based bentonite waterproof blanket in a saline soil area or a marine environment, and the preparation method comprises the following steps: (1) preparing nano bentonite lamellar colloidal dispersion liquid; (2) introducing and mixing an electrostatic screening agent and a polymerizable monomer; (3) carrying out in-situ free radical polymerization reaction; and (4) post-treatment and finished product preparation. By constructing a three-dimensional interpenetrating hierarchical structure composed of a covalent grafted polymer network, a physically anchored electrostatic screening agent and a stripped bentonite nanosheet layer, effective protection of a bentonite core anti-seepage unit is realized, so that the adaptability and long-term stability of the material under a complex water quality condition are remarkably improved.

The invention discloses a dam underwater seepage point detecting and plugging integrated system and method, and relates to the field of dam safety maintenance. The dam underwater seepage point detection and plugging integrated system comprises a suspension frame and further comprises a sleeve fixedly connected to the suspension frame; the piston disc is connected in the sleeve in a sliding manner; one end of the spring is fixedly connected with the inner wall of the sleeve, and the other end of the spring is fixedly connected with the piston disc; through the synergistic effect of the sealing air bag, the spring piston disc and the conducting ring warning indicator, efficient and reliable plugging is achieved, the sealing air bag expands to fill gaps, water seepage is isolated, equipment is fixed, and the impact resistance is enhanced through the L-shaped design; the spring is matched with the piston disc, so that the gap is uniformly filled with polyurethane, the piston disc moves to supply air to the air bag, and the whole-course sealing stability is ensured; the conducting ring and the warning indicator feed back the plugging state in real time, diving operation of personnel is avoided, and efficiency and safety are improved.

The invention relates to an underwater stirrer and an underwater glue injection system. The underwater stirrer comprises a driving motor, a stirring barrel, a transmission shaft, blades and a bearing seat, the stirring barrel comprises a barrel body and a cover body used for sealing the barrel body, an avoiding hole is formed in the cover body, one end of the transmission shaft is connected with an output shaft of the driving motor, the other end of the transmission shaft penetrates through the avoiding hole and extends into the barrel body, and a mechanical seal is arranged between the transmission shaft and the cover body. The paddle is connected with the transmission shaft and is positioned in the stirring barrel, the bearing seat is sleeved outside the transmission shaft, one end of the bearing seat is hermetically connected with the cover body, a first sealing element is arranged between the bearing seat and the cover body, the other end of the bearing seat is hermetically connected with the driving motor, and a second sealing element is arranged between the bearing seat and the driving motor. The underwater stirrer is more suitable for underwater construction environments.

The invention discloses a cascade reservoir flood control water level combined application scheduling method and scheduling system, and relates to the technical field of cascade reservoir scheduling, and the method comprises the following steps: dividing into a plurality of sub-regions according to an administrative region, determining a sub-reservoir corresponding to each sub-region, and collecting the rainfall and historical flood discharge data; analyzing the water storage capacity of each sub-region at the moment corresponding to the historical data to form a training data set; constructing a flood season flood discharge prediction model, and obtaining the target flood discharge flowing into the sub-reservoir by using the prediction model; analyzing the water level change in the flood season according to the target flood discharge amount, and judging whether scheduling is needed; and if scheduling is needed, determining a drainage flow combination of each sub-reservoir, setting a constraint condition, and performing optimization through a multi-target genetic algorithm to obtain an optimal drainage flow scheme meeting constraints. According to the scheme, the scientificity, the accuracy and the intelligent level of combined dispatching of the cascade reservoirs are remarkably improved.

The invention discloses reservoir leakage detecting and repairing equipment and method, and relates to the field of dam body repairing devices. Reservoir leakage detecting and repairing equipment comprises a repairing liquid storage tank, repairing liquid grouting equipment and a grouting repairing pipe, the repairing liquid storage tank is connected with the liquid inlet end of the repairing liquid grouting equipment, and the grouting repairing pipe is connected with the liquid outlet end of the repairing liquid grouting equipment; the side grouting repair hole is formed in the side face, close to the bottom end, of the grouting repair pipe and communicates with the liquid conveying pipeline in the grouting repair pipe; the multiple sets of air bags are annularly installed on the grouting repair pipe at equal intervals, and the multiple sets of air bags are located on the upper side and the lower side of the side grouting repair hole correspondingly; through the arrangement of the air bag, auxiliary inspection can be carried out on the crack position in the grouting repair hole, meanwhile, the upper space and the lower space of the side grouting repair hole can be blocked, grouting can be conveniently and intensively carried out on part of cracks, and incomplete grouting repair caused by insufficient pressure is reduced.

The invention relates to the technical field of pile foundation construction, in particular to a long spiral secant pile construction method under water conservancy anti-seepage complex geological conditions, and the construction method comprises the steps that a long spiral pile driver is provided with a first power head and a second power head, a sleeve is pressed downwards through the second power head, and then the first power head is used for driving a drill rod to drill; the sleeve and the drill rod drill down synchronously until the drill bit drills to the elevation of the bed rock surface to form a pile hole; the sleeve is left in the pile hole, the rotary drilling rig is used for drilling the bed rock, a drill rod of the long spiral pile driver is put down to the bottom of the pile hole, concrete is pumped into the pile hole, and when the concrete is poured to the bed rock surface, the drill rod and the sleeve are lifted while the concrete is pumped into the pile hole till pressure pouring is completed. In a complex stratum with a huge thick loose high-permeability sandy gravel covering layer and ultrahigh-strength hard bed rock coexisting, high-precision stable hole forming and collapse prevention are achieved at the same time, hard rock is reliably and accurately drilled to reach the designed depth, and it is ensured that concrete secant piles are tightly engaged to form a continuous and effective diaphragm wall.

The invention discloses a quick-setting high-strength expansive type leakage crack plugging material and method and application, and belongs to the technical field of cement-based material admixtures, the quick-setting high-strength expansive type leakage crack plugging material is prepared by adopting a mixing method, and the quick-setting high-strength expansive type leakage crack plugging material comprises a base material formed by compounding cement, desulfurized gypsum, calcium oxide, alkaline aluminum oxide, calcium formate, hydrated calcium silicate, carboxyl cellulose and a solid polycarboxylate superplasticizer; the active component is formed by compounding polyaluminum sulfate, magnesium sulfate, disodium ethylene diamine tetraacetate, borax and a defoaming agent; the superfine fly ash, the superfine silicon dioxide, the superfine hydroxyapatite, the superfine zinc sulfate, the nano titanium dioxide and the superfine boron nitride are compounded to form a structure regulating functional component. The three components are uniformly stirred by adding water, and then are mixed with an exciting agent to be used for plugging leakage cracks and filling gaps. The leakage plugging material provided by the invention has the advantages of scientific and reasonable composition, simple preparation and application methods, rapid curing, high strength, good durability, micro-expansion and the like, and has good plugging and filling effects on water bursting, water permeation and gas.

The invention relates to a marine environment mass concrete construction and crack repairing method, which comprises the following steps: in a mass concrete construction stage, carrying out aggregate precooling, carrying out layered intermittent pouring by using the precooled aggregate, and carrying out cooling treatment at the same time, so that the internal and external temperature difference is controlled within 20 DEG C; if cracks appear on the mass concrete, a polymer modified cement-based composite material is prepared for repairing, the polymer modified cement-based composite material comprises composite gel, a macromolecular tackifier and aggregate, the composite gel is based on 60%-70% of Portland cement, and 5%-8% of nano silicon powder and 10%-15% of fly ash are doped; the macromolecular adhesive comprises 0.5%-1.2% of polyacrylamide or 2%-3% of epoxy resin emulsion. When the scheme is used for repairing marine mass buildings, the overall viscosity of concrete can be improved, the internal and external temperature difference of the concrete is reduced, and the overall impermeability of the concrete repairing material is improved.

The invention discloses a quick blocking system for a dike breach, which belongs to the field of hydraulic engineering equipment and comprises a pushing support fixed on a dike through a positioning anchor rod and a fixed arm slidably arranged along the length direction of the dike, and the pushing support is connected with the fixed arm through hydraulic pushing translation equipment. One end of each fixed arm extends to the position above the dike breach, the two fixed arms are parallel to each other, a longitudinal supporting arm is arranged at the end, away from the pushing support, of each fixed arm, the longitudinal supporting arms are arranged between the two fixed arms, and positioning guide seats are arranged on the longitudinal supporting arms and the fixed arms correspondingly; the positioning guide seats are used for positioning the blocking anchor rods, the blocking anchor rods are downwards anchored into a foundation of the embankment breach along the positioning guide seats, and the breach is blocked by throwing geotechnical cloth sandbags or large stones or steel mesh gabions into an area formed by the blocking anchor rods. The problem that when a blocking medium is directly fed into the breach, the blocking medium is not stable under the impact of water flow and is directly washed away is solved.

The invention relates to the technical field of underwater operation equipment, solves the problems that existing dam underwater crack repairing depends on divers or complex equipment, the automation degree is low, the construction period is long, the comprehensive cost is high and the adaptability is poor, and particularly relates to concrete dam underwater crack repairing and leaking stoppage equipment which comprises a robot for underwater cruise, and the robot comprises a machine body; the cruise vision module comprises a foresight navigation lens group, a look-around lens group, a bottom wide-angle lens, an active illumination system, an obstacle avoidance sonar system and a topographic mapping sonar; the crack detection module comprises a crack scanning ultrasonic detector, a high-resolution strip-shaped scanning lens group, a laser ray scanner, a multispectral imager, a laser distance measuring sensor, a water flow sensor and an attitude sensor, the crack repairing module comprises two groups of mechanical arms for punching and grouting, and the central controller controls the robot to execute. Crack filling, structure bonding recovery and long-acting sealing are achieved, and meanwhile the construction difficulty and the comprehensive cost are reduced.

To efficiently implement countermeasures against trouble caused by underwater particles.SOLUTION: An underwater particle countermeasure support system 100-1 includes an underwater particle image analyzer D3 and an underwater particle countermeasure support device D5. The underwater particle image analyzer D3 photographs collected measurement water, obtains image data of the measurement water, and measures underwater particles contained in the measurement water based on the image data of the measurement water. The underwater particle countermeasure support device D5 outputs analysis results used for countermeasures against trouble caused by underwater particles based on measurement results of the underwater particles transmitted from the underwater particle image analyzer D3.SELECTED DRAWING: Figure 1

The invention discloses anti-crack self-repairing mass concrete and application thereof, and belongs to the technical field of concrete.The anti-crack self-repairing mass concrete comprises a reinforcement cage and concrete for pouring the reinforcement cage, and an anti-crack self-repairing fiber net is bound to the outer surface of the reinforcement cage; the anti-cracking self-repairing fiber net takes latticed fiber as a core, a microbial repairing agent hydrogel layer, a polymer layer, a nutrient substance hydrogel layer and a polymer outer layer are sequentially loaded on the outer surface of the anti-cracking self-repairing fiber net, the polymer layer and the polymer outer layer are compositions of polylactic acid and polystyrene, and the thickness of the polymer outer layer is larger than or equal to 900 micrometers. The anti-crack self-repairing fiber net is added into the mass concrete, the crack condition of the mass concrete is reduced, the microbial repairing agent is released in a response mode when the crack is generated, the crack of the concrete is automatically filled, self-repairing of damage of the concrete structure is achieved, and the service life of the concrete structure is prolonged.

The invention relates to a capsule plug system for plugging a hydraulic tunnel, and belongs to the technical field of sealing of hydraulic engineering. The system comprises a refrigerating machine arranged outside the hydraulic tunnel and a cylindrical water bag stuffed into the hydraulic tunnel. An evaporation pipe is wound on the surface of the water bag and a gap is formed between one circle of the surface of the water bag and the inner wall of the hydraulic tunnel; the water bag is filled with saline water; a refrigerant is injected into the evaporation pipe, and the evaporation pipe is connected with the refrigerating machine to form a closed circulation loop; when the system works, water in a gap between the surface of the water bag and the inner wall of the hydraulic tunnel freezes and forms a circle of annular tooth-shaped gap ice plug between the surface of the water bag and the inner wall of the hydraulic tunnel along with circulating flow of a refrigerant in the circulating loop, and water pressure is resisted through friction force between the gap ice plug and the inner wall of the hydraulic tunnel. Compared with a traditional hydraulic tunnel plugging method, the system can rapidly plug the hydraulic tunnel with low energy consumption.

An artificial reef structure including thin tensile members as part of the structure. These tensile members readily accumulate marine life to create a more organic structure. The reef structure can accommodate a wide variety of ocean sensing and communication systems. Embedded lighting and electronic elements can be used to attract and monitor marine life.

The utility model discloses a riverway slope reinforcing structure, and relates to the technical field of slope reinforcing. The device comprises a processing tank body, a discharge pipe is connected to the processing tank body, replacement assemblies are connected to the discharge pipe and a discharge hose, an electric valve is connected to the discharge pipe, an upper cover is detachably arranged on the upper surface of the processing tank body, and a stirring disassembly and assembly assembly is arranged on the upper surface of the upper cover. Residues of raw materials are scraped off through the scraping plate, when the processing tank body needs to be cleaned, connection of the upper cover can be removed by rotating the bolt, the stirring rod can be separated from the connecting rod, cleaning is convenient, sanitary dead corners are avoided, the processing tank body is convenient to clean, and the processing tank body is convenient to use. Mixed raw materials can be guided into the crack through the discharging hose, the movable rod can be moved by pulling the pulling plate, and the discharging hoses with different outlet sizes can be replaced conveniently.

According to the coastal saline-alkali soil water storage system device and the application thereof, on the basis of the characteristics that water and salt in coastal saline-alkali soil are actively transported, and the salinity change amplitude in an irrigation canal is large, ground surface reservoirs of different sizes are laid between field parcels, and the water flow direction of the reservoirs is judged through real-time conductivity data of pond water, canal water and irrigation water; the salt gradient controllable water storage system is formed and controlled according to salt tolerance threshold values of nearby crops, so that the irrigation and salt leaching requirements of different crops in different seasons are met. The water storage device can input the capacities of different reservoirs, crop salt tolerance thresholds, irrigation water demand and the like, estimates the field covered by the water storage device, and optimizes the cultivation mode planning. The device can accumulate irrigation water in different salinity ranges under the condition that the salinity of a surface water body changes drastically, can fully utilize different water sources such as surface water and rainwater, and is very suitable for coastal salinization farmland with relatively rich water resources.

The invention relates to the technical field of concrete crack repair, in particular to a concrete micro-crack fog vaporization repair material and a preparation and use method thereof. The concrete micro-crack fog vaporization repair material comprises a liquid A, a liquid B and powder C, the concrete micro-crack fog vaporization repairing method comprises the following steps that a sealing cover of a fog vaporization device and an air exhaust cover of an air exhaust device are tightly attached to the two ends of a concrete crack respectively; the concrete crack which is not covered by the sealing cover or the air exhaust cover is coated with a sealing coating; the liquid A, the liquid B and the powder C of the concrete micro-crack fog vaporization repair material are subjected to fog vaporization treatment by adopting a fog vaporization device, and meanwhile, an air extractor is used for air extraction treatment, so that tiny liquid drops or aerosol obtained by fog vaporization treatment fully cover the fracture surface of a concrete crack due to pressure difference and convection. The device can effectively improve the slurry penetration depth, is uniformly distributed in the form of tiny liquid drops or aerosol, and ensures that the repair liquid fully covers the interior of the crack.

The invention provides an anti-seepage structure, a pumped storage power station anti-seepage bottom plate and a construction method, and relates to the technical field of anti-seepage engineering.The structure comprises a joint core bottom plate, an auxiliary bottom plate and a connecting piece, and the periphery of the bottom of the joint core bottom plate extends in the horizontal direction to form protrusions; concave parts matched with the protrusions are arranged on the periphery of the bottom of the auxiliary bottom plate, the joint core bottom plate and the auxiliary bottom plate are connected through connecting pieces, and the protrusions are arranged in the concave parts. The construction efficiency can be effectively improved.

The invention discloses a device and a method for actively repairing microcracks on the surface of an ice-coated water work concrete structure, belongs to the technical field of intelligent repairing of concrete, and comprises a semi-embedded distributed optical fiber sensing system and a device for repairing the microcracks on the surface of the concrete. Wherein the semi-embedded distributed optical fiber sensing system is arranged on the surface of a hydraulic concrete structure to complete positioning of concrete microcracks; the concrete surface micro-crack repairing device can melt surface ice in a short time and send a repairing material to the concrete surface micro-crack position, and accurate repairing of the concrete surface micro-crack is achieved. By combining a distributed optical fiber sensing technology and a micro-crack repairing device, the problem that micro-cracks on the surface of an ice coated concrete structure are difficult to find and repair in time can be solved.

The invention relates to irrigation and water conservancy engineering, and discloses a platform paddy field permeation water catchment and anti-seepage bank protection linkage system and method, and the system comprises a water catchment system, a water collection system and a bank anti-seepage system; water catchment systems are uniformly distributed at the bottom of the plow pan of each layer of field except for the lowermost layer of field, and the water catchment systems are used for collecting infiltration water infiltrated from the plow pan; the water collection system is provided with a water collection pipe and a water collection pool, and the water collection pipe is connected with each layer of water catchment system and used for discharging collected seepage water into the water collection pool beside the lowermost layer of field parcel; the field ridge anti-seepage system is composed of an anti-seepage layer arranged in each layer of field ridge and used for isolating the field ridge from being soaked by water in the field steeping process. Irrigation water and underground water are effectively prevented from diffusing into the field ridge, and meanwhile secondary utilization of seepage water is achieved.

The utility model discloses a pressure hose expansion sealing waterproof and flood control assembly which comprises a base, a guardrail, waterproof cloth and a pressure hose. The base is pre-embedded under the ground, a semicircular clamping groove or a large semicircular clamping groove is formed in the base, and an opening of the semicircular clamping groove or the large semicircular clamping groove is exposed out of the ground; the guardrail is detachably or fixedly installed on the rear side of the upstream face of the base and extends upwards. The waterproof cloth is laid before flood comes, the bottom of the waterproof cloth is fixed in the semicircular clamping groove or the large semicircular clamping groove of the base, and the other part of the waterproof cloth is laid and fixed on the guardrail; the pressure hose is laid in the semicircular clamping groove or the large semicircular clamping groove of the base before flood comes, the pressure hose expands after a medium is injected into the pressure hose, and the bottom of the waterproof cloth is tightly fixed in the semicircular clamping groove or the large semicircular clamping groove of the base. According to the utility model, the pressure hose expands after being filled with a medium, the waterproof cloth is fixed on the base, and the function of effectively blocking flowing water leakage is achieved.

The invention relates to a geomaterial sheet comprising a first organic structural material and a second structural material, different from the first, which are connected to the first structural material to form a planar composite material sheet extending in two mutually perpendicular directions. The invention is characterized in that the first structural material and the second structural material are organic materials, the first structural material exhibits a first biodegradability to a certain extent, and the second structural material exhibits a second biodegradability that differs from the first biodegradability, in particular being lower than the first biodegradability.

To provide a system according to an embodiment, capable of predicting a torrential heavy rain or a local climate change, and quickly coping with them.SOLUTION: A system according to an embodiment comprises a collection unit, an analysis unit, a determination unit and an execution unit. The collection unit collects pieces of climate data. The analysis unit analyzes the data collected by the collection unit, and predicts a torrential heavy rain or a local climate change. The determination unit determines concrete countermeasures on the basis of a prediction result obtained by the analysis unit. The execution unit executes the countermeasures determined by the determination unit.SELECTED DRAWING: Figure 1

The invention belongs to the field of water conservancy projects, and particularly relates to a concrete dam body anti-icing air blowing structure which comprises a disc-shaped spiral air pipe, a plurality of spokes, an internal thread air cap, a turbulent flow component, a floating raft component and a reciprocating pneumatic device.The concrete dam body anti-icing air blowing structure adopts three core designs of disc-shaped spiral air pipe airflow optimization, multi-stage turbulent flow linkage and floating raft self-adaptive adjustment; a bubble curtain generated by the disc-shaped spiral air pipe bursts on the surface layer of the water body; meanwhile, the spoiler swings to disperse the water to multiple sides, and surface water flow movement is accelerated; vertical vortexes are generated in combination with movement of the water rolling wheels to promote heat exchange of upper and lower water layers and destroy an ice layer crystallization environment; the inhibition effect on ice layer crystallization is improved through multi-directional disturbance and heat exchange of the horizontal layer and the vertical layer; the problems of uneven airflow, insufficient disturbance, poor adaptability and the like in a traditional anti-icing technology are solved, and the efficient, energy-saving and long-service-life dam body anti-icing effect is achieved.