70 results about "Levee" patented technology

The invention provides a river levee flood control pile foundation stress analysis method and system, and relates to the technical field of river levee flood control pile foundation stress analysis. Multi-channel sensors are arranged on the pile top, the pile side and the pile end, and the sampling frequency is automatically switched along with the flood stage; inverting the soil saturation based on displacement and pore pressure change, dynamically correcting the permeability coefficient and the effective stress, and outputting a space-time coupling parameter matrix; determining a hazard source for the monitoring point, constructing an elliptical search domain by taking the hazard source as a center, and recursively incorporating abnormal points to form a risk area; a seepage-structure full-coupling finite element model is established in the risk area, the outside of the area is simplified through an equivalent spring boundary, and a pile foundation stress-strain field and a safety coefficient are calculated through self-adaptive time step control; and finally, generating a risk report according to safety factor classification, marking a high-risk area, automatically improving the sampling frequency and triggering early warning.

The invention discloses a flood storage and detention area flood diversion process simulation method and device based on a hydrodynamic model, and the method comprises the steps: obtaining the landform, river section, dike engineering parameters, and real-time hydrological and meteorological data of a flood storage and detention area, constructing a basic parameter library, and storing the basic parameter library in a data input module; constructing a hydrodynamic model calculation module by taking a hydrodynamic equation as a theoretical basis on the basis of the basic database, and combining a finite element volume method; receiving a numerical calculation result, analyzing real-time parameters through a dynamic simulation module so as to match actual hydrological parameters, and performing comparison under multiple scenes; and transmitting the hydrological parameters and the comparison data to a result output module, and outputting key parameters of the flood diversion process and a risk assessment result. The method has the advantages that high-frequency coupling of a hydrodynamic model, multi-source dynamic data, a cross-domain model and an engineering control system is achieved, and the problems of data lag, model isolation and control disjunction in traditional simulation are solved.

The application belongs to the technical field of shield construction, and discloses a method and system for early warning of settlement trend of shield construction crossing a dam; the method comprises the following steps: collecting silt layer geological data before the shield crosses the dam, and analyzing to obtain the distribution range and sensitivity level of the silt layer; collecting the tunneling parameters in real time in units of each ring when the shield machine crosses the silt layer section, and analyzing to obtain the disturbance index; collecting the real-time tunneling speed and the cutter head rotating speed, and recording the shutdown parameters when the complete shutdown condition is met; collecting the slurry tank pressure and the shutdown duration during shutdown, and calculating the pressure data; for the current sensitivity level, the preset hierarchical early warning rule is adopted, the current disturbance index basic threshold is corrected to obtain the corresponding dynamic threshold, the pressure data is compared with the dynamic threshold, and the early warning is issued according to the preset trigger logic classification; and the application improves the safety of shield construction crossing the dam.

1. The name of the design product: embankment hidden danger detection vector sensor. 2. The use of the design product: used in the field of water conservancy engineering, specially buried or placed in the interior and surface of the dam, and the hidden dangers such as seepage and cavity are detected by sensing the vector information of physical field. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: front view.

The invention relates to a river levee dam break flood prediction method and device, and belongs to the technical field of flood prediction, and the method comprises the steps: predicting the future boundary data of a river channel through employing a historical rainfall-river channel boundary fitting algorithm according to the forecast rainfall of a weather bureau, and carrying out the prediction of the river levee dam break flood based on the future boundary data of the river channel and a one-dimensional hydrodynamic coupling mathematical model; predicting a future river section water level and a future river section flow; based on the future river section water level and the future river section flow, determining the water depth and the flow velocity of a coupling interface by combining a discontinuous interface algorithm; the water depth and the flow velocity of the coupling interface are used as boundary conditions to act on the two-dimensional hydrodynamic coupling mathematical model, and a momentum flux correction method is combined to predict the future ground flood level, so that the problems of unbalanced still water and unstable prediction during flood level prediction are solved, and the flood level prediction accuracy is improved.

This item is a gate for a rotary weir installed on a river overflow levee. The rotary weir consists of a weir column and a gate, and the gate has a through-hole that extends horizontally, as shown in the reference front view. By fitting a rotating shaft attached to the weir column into this through-hole in the gate, the gate becomes able to rotate. In the rotary weir, under normal conditions, the gate is in a vertical position, as shown in the reference front view, reference plan view, and reference cross-sectional view AA showing the normal state. In the event of a river flood, the gate rotates to a horizontal position, as shown in the reference cross-sectional view AA showing the flood state, thereby allowing water to flow from the river side to the regulating reservoir side.

The application discloses a kind of fusion distributed optical fiber acoustics embankment underwater pipe heaving detection positioning system, it is related to water conservancy engineering safety monitoring technical field, comprising: voiceprint signal perception preliminary screening module, for collecting original acoustic vibration signal in strong noise environment, and carry out preliminary purification and separation to it, obtain the intrinsic mode function of different frequency bands, separate out weak pipe heaving suspected signal submerged in background noise.The application maps the seepage network reasoned into high-precision fluid-structure coupling model by introducing digital twin technology, simulates the evolution process under extreme working conditions such as sudden change of water level in virtual space, so that the system can calculate the final breach form, size and position, and the consequences of pipe heaving disaster are pushed from the qualitative judgment to the quantitative prediction, realizing the dynamic deduction and quantitative prediction of pipe heaving disaster process based on physical mechanism.

The invention relates to the technical field of agricultural irrigation, in particular to a large trunk canal siphon water taking drip irrigation head engineering system which is suitable for water-saving irrigation of farmland on both banks of a trunk canal in a large irrigation area and comprises a trunk canal, a siphon water taking pipeline system, a filtering head forebay, a pump front filter and a drip irrigation pressurization head. The vacuum water diversion device is arranged, and siphon automatic water supply is formed through the water level difference. Water enters the forebay through the siphon to be primarily filtered, then is secondarily filtered through the pre-pump filter, and is pressurized and conveyed to a drip irrigation system through the pipeline centrifugal pump, so that efficient irrigation is realized, a trunk canal levee does not need to be opened for water diversion, and the safety of a water conservancy project is protected; automatic and continuous water supply is achieved through the siphon principle, and energy is saved; the filtering forebay is small in occupied area, and the land utilization rate is increased.

The invention discloses a digital twinning method for dam overtopping outburst plugging emergency decision support, and relates to the technical field of dam overtopping outburst plugging emergency decision, and the method comprises the following steps: S1, constructing a dam digital bottom plate, the digital base plate fuses static geographic information of medium and small reservoirs and easy-to-break sections of river levees, geometric and mechanical attribute information of the levees and information of reservoir areas and downstream riverways on the basis of a database technology, and integrates real-time monitoring and sensing data, S2, automatically throwing tracer particles through an unmanned aerial vehicle, and obtaining surface flow field data near a breach by adopting a video processing method, for sensing the water power state of the breach, dynamic sensing of breach development, the water flow state and the plugging effect is achieved by constructing a digital bottom plate system and fusing dam static information and real-time monitoring data, the unmanned aerial vehicle is adopted for throwing tracer particles, and a high-precision flow velocity field is constructed based on the PIV image processing technology; and the sensing blind area of the traditional measurement means is effectively compensated.

The utility model relates to the technical field of water conservancy projects, and discloses an ecological river levee structure of a water conservancy project, which comprises a support bottom plate, a vertical plate and a river levee main body, a first inclined support rod is obliquely supported between the support bottom plate and the vertical plate, an installation bolt is connected in a threaded connection groove, and a cap head is fixed at the top end of the installation bolt. The side slope net is assembled between the side slope pressing plates, then the side slope net is assembled on the top face and the side face of the river levee body, and the threaded connection grooves are formed in the river levee body, so that after the side slope pressing plates and the side slope net are assembled in a combined mode, the mounting bolts are connected with the threaded connection grooves in a locked mode, and the mounting bolts are connected with the threaded connection grooves in a locked mode. The slope pressing plate and the river levee body are connected and assembled, at the moment, the slope net can be arranged outside the river levee body, regular planting of vegetation is facilitated, after the cap head is fixed to the top of the installation bolt, operation of people is facilitated through the cap head, the deviation problem of the follow-up slope pressing plate is solved, and the assembling capacity is improved.

An apparatus for guiding fish through a body of water having a water flow includes one or more hydrofoil element oriented in the body of water to produce an asymmetric flow field that has a fast, low turbulent flow on one side of the element and a slow, high turbulent flow on the other side of the element. Positively rheotactic fish have a preference for one side versus the other and so are guided in a desired direction. Systems and method that utilize the apparatus can be used to guide fish away from infrastructure such as dams, locks, levees, flood weirs, and other diversion points.

The invention provides an intelligent identification method and device for river reach dike personnel intrusion based on target detection, and relates to the field of computer vision. The method comprises the following steps: obtaining river levee detection picture data; extracting multi-scale semantic and textural features of the river bank detection picture data by adopting a trunk sub-network; performing alignment and fusion on the multi-scale semantic and texture features by adopting a neck sub-network to obtain deep features; the neck sub-network is formed by combining top-down and bottom-up feature pyramid fusion modules with a convolution attention mechanism of channel attention and space attention; based on the deep features, identifying a target category by detecting a head sub-network, and predicting target positioning; and the detection head sub-network comprises a classification module of the KAN neural network. The method and the device are used in the intelligent identification process of river reach dike personnel intrusion based on target detection, and solve the technical problem of low identification precision of the existing target detection technology in a complex outdoor environment.

The invention relates to the technical field of geographic information recognition, and provides a dike feature recognition method and system based on cross section elevation data, and the method comprises the steps: obtaining the cross section data of a river channel, and carrying out the preprocessing of the cross section data of the river channel; identifying candidate peak values serving as levee crest candidate points in the preprocessed river cross section data and outputting a candidate peak value list; checking whether the dike characteristics form an effective double-dike structure or not based on the candidate peak values; when an effective double-embankment structure is formed, attribution bank distribution is carried out; when the effective double-embankment structure is not formed, whether a single-embankment structure or a non-embankment structure is formed or not is judged according to the highest peak value in the candidate peak values; and outputting an embankment feature recognition result. According to the scheme, automation, accuracy and robustness can be considered, and the urgent demand of modern intelligent water conservancy for dike asset digital management can be effectively met.

A working platform that may be used at a site of a functional hydro structure, such as a dam, powerhouse, impoundment structure, sea wall, levee, tailings dam, or the like, constructed at least in part of precast segments is described herein. The working platform supports the functional hydro structure assembled thereon, which includes, at least in part, precast segments. Related methods for constructing a functional hydro structure are provided.

The utility model relates to the technical field of river embankment reinforcing, and discloses a river embankment reinforcing retaining wall which comprises a retaining wall body, a fixing cylinder is fixedly installed on the rear side wall face of the retaining wall body, the retaining wall body comprises a barb device, and the barb device comprises two limiting cylinders arranged in a cavity of the fixing cylinder. A barb plate is movably installed in a cavity of each limiting cylinder, the left end and the right end of each barb plate are each provided with an L-shaped plate, and a penetrating hole is formed in the position, corresponding to the two barb plates, of the side wall of the fixing cylinder. Comprising a moving device, the moving device comprises side plates arranged on the left side and the right side of a limiting cylinder, and the ends, away from each other, of the two corresponding side plates are each provided with a driving rod. In conclusion, through the arrangement of the barb device and the moving device, the barb plate can be inserted into soil to limit the fixing barrel, then the effect of limiting the retaining wall body is achieved, and the barb plate can be driven to move through the moving device.

The utility model discloses a river levee protective fence for hydraulic engineering, which comprises a river levee side slope, a protective fence main body is installed on the side edge of the river levee side slope, the protective fence main body is composed of a plurality of protective splicing units, each protective splicing unit comprises a blocking mechanism, splicing mechanisms are installed at the two ends of each blocking mechanism, and the splicing mechanisms are connected with the blocking mechanisms. A bearing mechanism is mounted on one side of the stopping mechanism; the bearing mechanism comprises a bearing mounting frame, a bearing net bag is arranged on the inner side of the bearing mounting frame, a guide transverse rod and a tensioning rod are mounted on the outer side of the bottom end of the bearing net bag, and locking rotary knobs are mounted at the two ends of the tensioning rod; the blocking mechanism comprises a blocking frame, and a blocking cross rod is fixedly installed at the upper end of the blocking frame. The warning device has the advantages that by warning ships, vehicles and pedestrians, accidental collision is avoided, fallen articles and pedestrians can be elastically supported, and use safety is improved.

The utility model discloses an ecological river embankment structure which comprises a backwater side pile body which is arranged at the toe of a side slope and vertically inserted into a river channel, a waterside pile is vertically inserted into the river channel on the outer side of the backwater side pile body, and a waterside platform is supported on the tops of the backwater side pile body and the waterside pile. A river channel between the backwater side pile body and the waterside pile forms a fish breeding place, and aquatic plants are planted in the river channel where the fish breeding place is located. The ecological river embankment structure is high in adaptability and can be implemented under various geological conditions, the excavation volume is saved, and therefore the engineering investment cost is reduced. The structure has the functions of a corridor, a buffer zone, a vegetation revetment and the like, can provide reliable guarantee for flood control safety, and is also a landscape line for people and water. According to the structure, different types of artificial fish nests can be arranged in a river levee, the natural environment is simulated, and a proper breeding place is provided for fishes; and the water body self-purification capacity is enhanced, the system is suitable for living and reproduction of organisms, and the water body and ecological environment of the river channel are improved.

The invention discloses an embankment hidden danger identification and minimally invasive verification method based on deep learning, and relates to the technical field of embankment hidden danger forecasting, and the method comprises the following steps: collecting a ground penetrating radar image and a high-density electrical method image of a known hidden danger, marking the type, region and size of the hidden danger, constructing a multi-source map database, and carrying out the recognition and minimally invasive verification of the hidden danger. The method comprises the following steps: constructing an embankment hidden danger recognition model, collecting corresponding image data of an embankment section to be detected, inputting the recognition model, screening optimal hidden danger pairs with high overlapping degree through spatial pairing, comprehensively outputting confidence and image quality weight to determine a comprehensive reliability score, and evaluating joint uncertainty in combination with the reliability score and a classification probability distribution entropy value. And the potential risk area is screened, targeted minimally invasive drilling operation is carried out to verify the accuracy of the recognition result, the accuracy of the recognition result is ensured, and the overall level of dike safety monitoring is remarkably improved.

The invention discloses a pre-pressing type supporting system and construction method for an arch-shaped cast-in-place beam obliquely crossing a river levee, the pre-pressing type supporting system comprises a supporting pile system and a supporting frame system, the supporting pile system comprises a pile body, the supporting frame system comprises a formwork support, the formwork support is installed at the top of the pile body, a containing groove is formed in the formwork support, and the supporting frame system is installed in the containing groove. The containing groove is used for containing a pre-pressing load, the supporting system is used for bearing the cast-in-place beam, and the mass of the pre-pressing load is larger than the sum of the mass, borne by the formwork support, of cast-in-place beam concrete and the mass, borne by the formwork support, of the formwork. Compared with the prior art, the pre-pressing load with the preset weight only needs to be directly placed on the support, the problem that force application is limited due to the uneven river levee ground is avoided so as to adapt to the river levee crossing construction scene, secondly, compared with ground steel cable tensioning, additional arrangement of tensioning equipment and laying of a ground leveling device are not needed, the construction steps are reduced, and the construction efficiency is improved. The cost is reduced.

The utility model relates to the technical field of river embankment safety protection, and disclose a kind of embankment protection structure for river embankment safety protection, including embankment main part: the front end of the embankment main body is equipped with multiple concrete protection structures, the front end of the embankment main body is equipped with three moving grooves, the inside fixed connection of the moving groove has fixed link, the inside of the moving groove and the surface of fixed link are slidably connected with moving block.The embankment protection structure for river embankment safety protection, by the concrete protection structure design into can move back and forth and can swing left and right design, when water flow impacts concrete protection structure, concrete protection structure can swing along connection node small and move back and forth through moving groove and fixed link, can effectively convert impact force into the kinetic energy of structure, reduce instantaneous impact force to the damage of single part, to protect the stability of the whole embankment structure, and make overall structure more applicable to complex water condition.

The invention discloses an embankment top and embankment foot position generalization identification method based on a trapezoid-like model, and the method comprises the steps: determining a normal moving direction perpendicular to the center line of the embankment top according to the walking direction of the center line of the embankment top, and obtaining the elevation information of the left and right sides of each grid section along the center line of the embankment top along the normal; building trapezoid-like models on different grid sections respectively, determining three outward horizontal lines of the trapezoid-like models at the top end level and the two sides of the bottom end at different elevations, and determining the positions of the levee tops and the levee feet of the trapezoid-like models with different grid sections according to the three horizontal lines; and integrating all the section trapezoid-like structures along the center line of the dike top to form a dike generalized trapezoid-like average state, and according to the elevation of the dike top and the dike foot and the distance to the center line of the dike top, carrying out elevation interpolation on the slopes on the two sides of the dike in the normal direction to complete the generalization identification of the dike foot position of the dike. According to the method, accurate recognition of inflection points is converted into optimal horizontal plane checking, and the problem that the inflection points are diversified and difficult to effectively define in a complex environment is solved.

The embankment reinforcing structure capable of utilizing the pipeline in the riverway comprises a gabion town foot arranged at the bottom of the side, close to the riverway bank side, of a built pipeline, an excavation material backfilling area is arranged on the upper portion of the gabion town foot, and a hydrophilic platform is arranged between the built pipeline and the riverway bank slope. The waterside platform is located at the top of the excavation material backfilling area, an ecological protection slope is arranged between the waterside platform and the river bank top, and the river bank top is further provided with an anti-flood wall. According to the method, the existing built pipelines in the river channel are reserved and utilized, meanwhile, the river channel dike is heightened and reinforced, the comprehensive utilization function of facilitating people and being hydrophilic can be achieved, meanwhile, the occupied area can be reduced, investment can be saved, and the construction period can be shortened.

The utility model relates to the technical field of river levees, and discloses a river levee with a water pollution remediation function, which comprises a river levee body, one end of the river levee body is respectively provided with a slope protection and a gravel layer, and the lower part of one end of the river levee body is fixedly provided with a purification assembly for water pollution remediation. The purification assembly comprises a supporting plate fixedly connected to one end of the river levee body, a plurality of supporting frames are fixedly installed at the top end of the supporting plate, a plurality of hanging rings are arranged at the top ends of the supporting frames in a sleeving mode, and the hanging rings are fixedly connected to the top ends of the supporting frames. Artificial aquatic plants used for purifying water are fixedly connected to the bottom ends of the hanging rings, the first planting foundation bed and the second planting foundation bed improve the planting efficiency, the greening rate of the water surface is increased through the planting floating bed, so that plant roots absorb organic matter in water, microorganisms and the like are adsorbed through the evenly-distributed artificial aquatic plants, pollutants are degraded, and the water quality is improved. The water pollution is repaired.

The utility model discloses a novel double-row steel sheet pile cofferdam structure, which is arranged along the width direction of a river channel and covers between a pair of river embankments, and comprises two rows of Larsen steel sheet pile groups which are arranged at intervals and are arranged in a mirror image manner, I-shaped steel is arranged between the two rows of Larsen steel sheet pile groups, and the two rows of Larsen steel sheet pile groups are connected into a whole by the I-shaped steel. The two ends of the I-shaped steel are fixed in a pair of river levees correspondingly, the Larsen steel sheet pile set close to water flow is an inner Larsen steel sheet pile set, the Larsen steel sheet pile set away from the water flow is an outer Larsen steel sheet pile set, and a plurality of second pile sets are arranged in an inner cavity of the Larsen steel sheet pile set between the inner Larsen steel sheet pile set and the I-shaped steel at intervals. A plurality of first pile sets are arranged in an inner cavity of the side, away from the I-shaped steel, of the outer Larsen steel sheet pile set at intervals, the first pile sets and the second pile sets are arranged in a staggered mode, and the bottom ends of the first pile sets and the bottom ends of the second pile sets are inserted into the foundation and used for supporting the Larsen steel sheet pile sets. The anti-water-flow-impact anti-seepage supporting structure has good water-flow-impact-resistant capacity, anti-seepage performance and supporting stability.

The invention discloses an evaluation method for quantifying the influence of land subsidence on dike design standards. According to the method, multi-source data such as hydro meteorology, terrain and land subsidence monitoring are fused, and a hydrological-hydrodynamic coupling model is driven to simulate river channel design flood levels in different design return periods; selecting a typical section, and quantitatively calculating the space cumulative effect of land subsidence and the relative reduction value of the levee crest elevation caused by the space cumulative effect; and a three-dimensional response relation model of design flood level-settling volume-standard adjustment amplitude is constructed, and the reduction degree of the flood control design standard is accurately quantified. According to the method, the simplification limitation of a traditional linear superposition method is broken through, quantitative correlation between the land subsidence and the flood control design standard downshift amplitude is achieved, and an integrated evaluation process of land subsidence, design standard adjustment and engineering coping strategies is established; scientific basis and technical support are provided for embankment design standard review, safety evaluation and flood control and disaster reduction decision making.

The invention belongs to the technical field of hydraulic engineering. A breach automatic modeling and real-time flood risk map generation method based on a dike polygon range comprises the following steps: collecting basic data, and constructing a two-dimensional coupling hydrodynamic model and a structured database containing a mapping relation between the dike polygon range and a model grid edge number; receiving hydrological boundary conditions and breach parameters sent by the front-end platform through the preset port; automatically matching the embankment section to which the breach belongs based on the embankment polygon space range, dynamically expanding the associated grid edge set according to the breach width, and reconstructing the length and elevation parameters of the corresponding hydraulic structure; and calling a solution engine to carry out hydrodynamic simulation, and pushing a result to a specified API address. The method is used for solving the key problems that in the prior art, dike breach positioning is not accurate, a model structure is statically solidified, boundary condition updating is disjointed, and breach modeling depends on manual intervention. The invention also discloses a system for realizing the method.

The utility model belongs to the technical field of embankment engineering construction, and particularly relates to a three-dimensional soil fixation net pad and coconut shred blanket combined protection structure for an inner slope of an embankment. A levee inner side slope three-dimensional soil fixation net pad and coconut shred blanket combined protection structure comprises a road surface and a side slope surface which are arranged on a levee base, a nutrient soil layer is laid on the side slope surface, and a protection layer is laid on the nutrient soil layer; the protective layer is composed of a coconut shred blanket and a three-dimensional soil fixing net pad, the coconut shred blanket is laid on the surface of the nutrient soil layer and installed on the side slope face through a plurality of U-shaped nails, and the three-dimensional soil fixing net pad is laid on the surface of the coconut shred blanket and installed on the side slope face through a plurality of U-shaped nails as well. The dike inner side slope three-dimensional soil fixation net pad and coconut shred blanket combined protection structure has the advantages that operation is convenient, the construction period can be shortened, manpower and equipment cost can be reduced, meanwhile, landform damage can be reduced, and the environment recovery difficulty can be lowered.

The invention discloses a coastal zone structure with functions of protecting a beach outside a levee and restoring an oyster reef ecological system, and relates to the field of biological habitat engineering. The coastal zone structure comprises an oyster reef cluster and a protective layer, the oyster reef cluster comprises a plurality of oyster reef units, and the protective layer comprises a riprap layer and a soft mattress. The riprap layer and the soft body mattress are adopted to establish a protective layer at the bottom, the upper-layer oyster reef unit and the lower-layer oyster reef unit are combined, the lower-layer oyster reef units are arranged at intervals so as to disperse water flow impact force, the upper-layer oyster reef units are obliquely stacked to form an interlocking structure, the structure stability and strength are improved in cooperation with the self weight, and therefore the anti-scouring capacity is improved; a multi-stage habitat is formed through the height difference layout of an upper layer and a lower layer and the high-low staggered design, the beam frame serves as a basic frame, and the partition plate assembly is of a porous hollow structure so as to provide a water body exchange channel and provide a shelter for fishes. Meanwhile, the oyster reef units are arranged at intervals and can cooperate with the protective layer to promote siltation, and the technical purposes of beach protection and ecological restoration are achieved.

The utility model discloses a river embankment gate bridge connected with a river beach, belongs to the field of water conservancy projects, solves the problem that a sightseeing person inconveniently enters and exits from the river beach, and also has a flood control function. A notch is formed in a river embankment, a bridge body is arranged at the notch, an assembled bulkhead gate is detachably installed at a bridge opening of the bridge body, a bridge body bottom plate is arranged at the bottom of the bridge opening, and the bridge body bottom plate leads to a river beach. The gate bridge is arranged at the river embankment, the bridge and the gate are integrally designed, the detachable assembled bulkhead gate is adopted, a channel of the river embankment is opened, pedestrians and vehicles can conveniently enter and exit a river beach, the flood control function of the river embankment is not affected while the traffic function is achieved, the channel can be effectively closed in the flood season, and backward flowing of flood is prevented; and city safety is protected.

The invention discloses an offshore wind power direct current delivery submarine cable levee-penetrating section cable tunnel cooling system and a design method thereof.The system comprises a working well arranged in a levee-penetrating section, the bottom side of the working well communicates with the upper end of a cable tunnel in the levee-penetrating section, and a post air supply air conditioner or a mechanical ventilation device is arranged in the working well; the air supply end of the post air supply air conditioner is connected with one end of an air supply pipe arranged in the cable tunnel, and a plurality of air supply holes are formed in the surface of the air supply pipe; the ventilation end of the mechanical ventilation device is connected with one end of an exhaust pipe arranged in the cable tunnel, and a plurality of exhaust holes are formed in the surface of the exhaust pipe; according to the invention, the current-carrying capacity during landing of the offshore wind plant direct-current cable can meet the power transmission capacity requirement.