37 results about "Floodplain" patented technology

The invention discloses a flood plain shallow-buried unsymmetrical-pressure multi-arch tunnel excavation stability evaluation method, and relates to the technical field of tunnel stability evaluation, and the method comprises the following steps: obtaining the geological conditions of a tunnel excavation area through on-site survey and drilling, and evaluating the groundwater emission amount and the inrush probability in combination with historical data; and basic data support is provided for subsequent risk modeling. According to the method, through geological and hydrological survey and a numerical model, the high-risk inrush area and the water pressure distribution are accurately predicted, the risk identification and early warning precision is effectively improved, and a scientific basis is provided for support design. Optimized design of the supporting structure is combined with real-time monitoring and dynamic adjustment, construction safety is guaranteed, and meanwhile structural reliability and economical efficiency are both considered.

The invention discloses a valley-type tailing pond flood runoff prediction method based on underlying surface parameter dynamic correction, which comprises the following steps: S1, acquiring valley-type tailing pond multi-source data for preprocessing, and constructing a basic database; s2, underlying surface parameters of the valley-type tailings pond are obtained, and the initial value range of each parameter is determined; s3, establishing an underlying surface parameter dynamic correction model, setting differentiated production and confluence parameters for different areas, and performing dynamic correction; s4, constructing a coupled hydrological-hydrodynamic model, simulating a runoff forming process and time-varying characteristics, outputting predicted values of runoff flow, flood peak time and flood peak water level, and comparing the predicted values with actual measured values of a historical flood area of a satellite remote sensing image for verification and calibration; and S5, inputting the real-time data into the hydrological-hydrodynamic model, and predicting the submerging range, submerging time and submerging degree of the flood runoff based on a geographic space analysis method. According to the method, the timeliness and the accuracy of runoff prediction of small watershed areas without runoff data such as valley type tailings ponds are improved.

The invention discloses a method for randomly predicting and assigning parameters of an excavated soil body of a beach-overtopping foundation pit. The method comprises the following steps of: collecting geological survey data and construction information of an excavated area of the beach-overtopping foundation pit, screening redundant parts of characteristic parameters, retaining variables which have influences on mechanical parameters of the soil body, and constructing a complete original database; collected data is divided into a training set and a verification set, the training set is used for preliminary training of the model, and the verification set is used for optimization and verification of the model. According to the method, the nonlinear relation of the complex variables is captured through the random forest model, dynamic monitoring and real-time optimization are combined, the soil parameter prediction precision is remarkably improved, and the construction uncertainty risk is reduced; the dynamic monitoring function quickly responds to soil body changes in construction, the prediction result is optimized, and the construction safety is improved; the random field assignment method effectively reflects the spatial variability of soil parameters, supports multi-scene risk assessment, and provides scientific basis and reliable guarantee for engineering design and construction.

The invention discloses a bed load particle movement velocity measurement method based on Doppler flow velocity profiler sound wave scattering correction. The method comprises the following steps: selecting a measurement river reach, sampling silt on the surface of a riverbed on a floodplain of an unsubmerged area, screening the sampled silt, and calculating the median particle size of the bed sand of the river reach according to the screening result; a measurement area is selected, an ADCP and a matched unmanned ship carrying DGPS are used for constant-speed cruise type flow measurement, and flow measurement data are obtained; calculating a riverbed movement speed according to the ship speed data; filtering the riverbed movement speed data, and calculating a characteristic value of the filtered riverbed movement speed data; respectively calculating a bed load vertical projection area ratio and a bed load scattering correction coefficient according to the filtered riverbed movement speed data characteristic value; and calculating the movement speed of the bed load according to the vertical projection area ratio of the bed load and the scattering correction coefficient of the bed load. According to the invention, the difficulty that the Doppler flow velocity profiler cannot be directly used to measure the accurate movement velocity of the bed load at present is overcome.

The invention relates to a natural river bank imitating type multifunctional wetland purification system which comprises a hydraulic regulation and control distribution unit, a water quality purification unit and a river bank ecological landform remodeling unit which are connected in series, and water flow sequentially flows through the hydraulic regulation and control distribution unit, the water quality purification unit and the river bank ecological landform remodeling unit. Then the water flows to an external river channel from the river bank ecological landform remodeling unit; the hydraulic regulation and control distribution unit comprises a sewage treatment plant and a water intake pump station, the water quality purification unit comprises at least more than one nature-imitating strengthening system and at least more than one ecological pond, the river bank ecological landform remodeling unit comprises a floodplain, the floodplain is close to a river channel, and the floodplain is located between the whole water quality purification unit and the river channel; the sewage treatment plant is connected with the water intake pumping station, the water intake pumping station is connected with the nearest nature-imitating strengthening system, the nature-imitating strengthening system and the ecological pond which are adjacent to each other are connected, and the water quality purification unit is connected with the river channel.

The invention relates to the technical field of flood disaster simulation, in particular to a watershed flood dynamic simulation system based on multi-source data fusion, which comprises a multi-source data preprocessing module, a multi-source data fusion module, a digital twin watershed modeling module, a flood dynamic simulation module, a flood risk assessment module and a visualization module. According to the scheme, a space-time cross-modal interaction fusion method is put forward to fuse multi-source data, a cross-modal interaction mechanism is introduced to capture dependency in a modal, high-dimensional interaction tensors are efficiently fused by means of low-rank decomposition, complementarity of space topology, time dynamic and multi-source heterogeneous data is considered, and multi-source data fusion efficiency is improved. The precision and robustness of hydrological process modeling are effectively improved; by constructing a distributed hydrological-hydrodynamic coupling model, whole-process dynamic simulation from runoff production to river channel-flood area flood routing is realized.

The invention discloses a partition plate type fishway built on a floodplain, and relates to the technical field of fishways, the partition plate type fishway comprises a fishway and a movable cover plate, the fishway is a partition plate vertical seam type fishway, the movable cover plate is arranged at an opening in the upper end of the fishway, and the movable cover plate is detachably connected with the fishway. According to the partition plate type fishway built on the floodplain, fish migration can be achieved for a floodplain type river channel, and silt can be prevented from blocking the fishway when river water overflows the floodplain.

The invention discloses a riverway section optimization processing method in a one-dimensional hydrodynamic model modeling process, which comprises the following steps: extracting section topographic data from a riverway topographic map, drawing an image of each section based on the section topographic data, and determining a riverway slope through the lowest point elevation of each section diagram; an L-shaped and / or linear cross section is presented for the overtopping, and the cross section of the river channel is linearly extended; inserting a certain number of new river channel sections into two adjacent river channel sections of which the elevation difference is greater than a preset elevation difference; and simulating the corresponding water level of the river channel section at the end moment specified by the model through the original river channel section data, extracting the extended and interpolated river channel section data based on the corresponding water level of the river channel section, and retaining effective river channel section data. The method has the advantages that the river section optimization efficiency is effectively improved, the operation is simple, the labor cost and the time cost of data optimization are greatly saved, and the requirement of efficiently and accurately constructing a model can be well met.

The invention discloses a calculation method of a compound section river channel beach and groove excess flow ratio considering vegetation influence. According to the method, the section of the riverway is divided into the vegetation area and the non-vegetation area based on measured data, the vegetation density, the stalk diameter, the underwater height and other characteristic parameters are obtained, and the roughness of the riverway under the vegetation condition is deduced by introducing the vegetation additional water blocking area. After a river section is divided into vegetation areas on the two sides and a non-vegetation area in the middle, the water passing area and the average water depth of each area under the typical water level are calculated respectively, then the excess flow of each subarea is calculated, and finally, the excess flow ratio of the flood plain to the main channel is expressed through the ratio of the excess flow of the vegetation areas to the excess flow of the non-vegetation areas. The method is simple and feasible, and can be used for river flood control and treatment.

The invention belongs to the technical field of building engineering construction, and relates to a deep foundation pit stability monitoring dynamic early warning method considering advanced prediction. Comprising the following steps: S1, constructing a deep foundation pit monitoring index system and a measurement system under the apron beach landform; s2, determining subjective weights of monitoring indexes based on an improved G1 method; s3, correcting the index weight based on a CRITIC method; s4, determining the comprehensive weight of the monitoring indexes of the deep foundation pit; s5, obtaining a deep foundation pit stability evaluation score based on a TOPSIS method; s6, refining and grading safety levels under the special landform; and S7, predicting a deep foundation pit stability evaluation score based on the neural network model and setting early warning. According to the method, the engineering entity monitoring layout and the calculation method are optimized according to the geomorphic characteristics of the apron beach, and longitudinal scoring and early warning of the time sequence are carried out for deep foundation pit monitoring, so that the engineering analysis result has higher reliability and comprehensiveness.

The invention discloses a river water level inversion method taking altimeter footprint heterogeneity into consideration. The method comprises the following steps: acquiring an observation waveform of an SAR altimeter; space geometric parameters are calculated through footprint gridding and observation geometric modeling; constructing a water distribution scene based on the water mask and the river network, and classifying the water into a main river channel, a flood area and an adjacent isolated water body; electromagnetic scattering numerical integration is carried out based on the differentiated surface roughness parameters, and a simulated echo waveform is generated; waveform retracking and parameter inversion are realized through coarse grid search and local optimization solution; calculating an absolute water level and carrying out geophysical correction; performing multi-index quality control based on the interpretation rate of the analog waveform and the residual whitening degree; and finally outputting a water level product. According to the method, the defects of insufficient inversion precision and robustness of an existing method in a complex earth surface mixed scene are overcome, and the accuracy, reliability and physical interpretability of inland river water level monitoring are remarkably improved.

The invention provides a multi-temporal-spatial-scale river sediment tracing method, and relates to the field of geomorphology and river dynamics. According to the method, light release light (OLS) samples of terraces and floodplains and zircon sand samples of corresponding layers are collected on the sections of a source (branch) and a sink (main stream), and different age sequences are divided in combination with contemporary zircon sand samples of a tender beach; the contribution rate of a source to a sink is directly calculated by using a zircon age spectrum matrix, and a quality contribution rate algorithm is optimized in combination with a zircon mass percentage. According to the method, contemporary and historical multi-time-scale sediment traceability is realized, the traditional fitting simulation process is simplified, the calculation efficiency and accuracy are improved, and the method is suitable for sediment source analysis in areas poor in data.

The invention discloses an artificial intelligence-based beach area inundation loss prediction method and system, and relates to data processing and artificial intelligence technologies, and the method comprises the steps: obtaining the topographic data and satellite image data of a target drainage basin, and determining the main river channel range of the target drainage basin; identifying a possible beach area coverage range; performing grid division on the coverage area of any beach area, and determining a loss cardinal number in each grid; determining a plurality of submerging elevations based on the any beach area and the divided grids; acquiring current meteorological data and upstream water level monitoring data of the target drainage basin; utilizing a pre-trained LSTM model to predict the river flow of the future target drainage basin based on the meteorological data and the upstream water level monitoring data; and according to the predicted river flow and the reservoir capacity of the beach area under each submerging elevation, estimating submerging duration and submerging loss. The method and the device are used for realizing graded inundation loss estimation and improving the effect of pre-prediction of flood disasters.

The present invention relates to the technical field of flood disaster prevention, and particularly relates to a flood channeling calculation method and simulation system based on overflow process correction. The method includes the following steps: collecting and processing topographic data of the floodplain area to obtain topographic characteristic parameters; collecting historical flood measured data of the floodplain to obtain the measured flood water level and flow process of the river channel; simulating the out-of-channel and in-channel flood processes according to the topographic characteristic parameters and the measured flood water level process of the river channel based on the principle of water balance to obtain the simulated floodplain flow process; correcting the measured flood flow process of the river channel according to the floodplain flow process to obtain the channeled flood flow process of the river channel, and using this process as the basis for the design of channeled flood. The present invention realizes the channeling correction of the river channel flood process by simulating the floodplain process, requires less data, has complete flood elements, and is highly operable.

The present application discloses a method and device for scanning and identifying floodplain risks, a processor, and an electronic device. The method includes: scanning the geographic information data corresponding to the target river section to obtain the elevation data of the target floodplain; segmenting the elevation data of the target floodplain to obtain a plurality of segmented data, and calculating the center point coordinates of each segmented data and the center point height of each segmented data based on each segmented data; analyzing the historical hydrological data of the target river section to obtain a water level flow relationship table; calculating based on the water level flow relationship table, the center point coordinates of each segmented data, and the center point height of each segmented data to determine the floodplain risk level distribution map of the target floodplain under the target flow. Through this application, the problem of low accuracy of risk assessment caused by evaluating the floodplain risk of the floodplain through two-dimensional data in the related art is solved.

The application discloses a kind of based on digital twinning's floodplain flood relief scheme generation method, device and equipment.The method comprises the following steps: determining the corresponding floodplain area in the basin based on digital twinning simulation model;Based on the water flow corresponding to the floodplain area of the floodplain area, the disaster risk level corresponding to the floodplain area is determined;Through digital twinning simulation model, the disaster relief scheme corresponding to the floodplain area is determined based on the disaster risk level corresponding to the floodplain area.The present application solves the technical problems that the floodplain disaster relief scheme cannot be quickly and accurately generated based on real-time conditions in the related art.

This application discloses a method, apparatus, storage medium, and processor for processing floodplain data. The method includes: monitoring river flow and determining the water level at various points along the riverbank in a watershed model based on the flow at the monitoring points. The watershed model is composed of elevation data within a target watershed, which includes at least a river and a riverbank. The method further includes determining floodplain points based on the water level and elevation of each point along the riverbank, resulting in at least one floodplain point. The method also includes determining floodplain links based on the water level and elevation of the surrounding terrain at each floodplain point, resulting in at least one floodplain link, where each floodplain link contains multiple points. Finally, the method involves simulating floodplain flow in the watershed model based on the at least one floodplain link. This application solves the problems of high computational load and demanding performance requirements for computing equipment in simulating floodplain conditions in related technologies.

The invention discloses a river basin sediment production estimation method based on a dynamic evolution process of a river-blocking barrier lake, and the method comprises the steps: carrying out the comparative analysis of key physicochemical characteristic parameters through an identification event layer in a residual barrier lake deposition sequence, and constructing a disaster chain extreme surface process river basin sediment production estimation method. Water level changes, hydrodynamic conditions and material source changes of the barrier lake are comprehensively analyzed, different sand production stages from the stable period, the decline period and the extinction period of the barrier lake are divided, the sediment change history from lacustrine facies suspended load to flood plain bed load is analyzed, and a complete barrier lake formation-evolution full life cycle evolution process mode is constructed. A layered triangular irregular network model is constructed to obtain layered accumulated sediment volume data, the layered volume and mass are calculated based on a dry density field of sedimentary stratification and spatial interpolation so as to calculate the total sediment yield, a physical information neural network model inverts a sedimentary thickness field, sediment yield estimation is achieved, and the non-stationary dynamic evolution characteristics of water and sediment of the barrier lake are quantified.

The invention discloses a floodplain biological habitat system which comprises a floodplain, a plurality of biological habitat ponds are arranged on the floodplain, the biological habitat ponds are connected in series through side channels to form a biological habitat pond ecological link, and the water inlet end of the biological habitat pond ecological link is communicated with the water outlet end of a water inlet channel through the side channels. The water inlet end of the water inlet channel is communicated with the main riverway, the water outlet end of the biological inhabitation pond link is communicated with the water inlet end of the water outlet channel through the side channel, the water outlet end of the water outlet channel is communicated with the main riverway, an ecological frame belt is arranged between the main riverway and the floodplain, and the water inlet channel and the water outlet channel both penetrate through the ecological frame belt; the invention further discloses a construction method of the flood plain biological habitat system. According to the method, the original floodplain landform is fully reserved and utilized, diversified biological habitat environments are set, meanwhile, the technology has small influence on the surrounding environment, the engineering investment is low, river landscapes can be enriched, and the method has good application prospects.

The invention discloses a self-adaptive flood-drought mutual aid system and method for a river channel in an arid region based on terrain remodeling, and belongs to the technical field of ecological water conservancy projects. The system comprises a water and sediment separation topographic unit, a threshold value overflow topographic unit, a narrow and deep evaporation restraining topographic unit and an outer side beach overflowing flood area which are sequentially arranged in the water flow direction and coupled. A bottom plate of the water-sediment separation shape unit is provided with a transverse slope inclining towards an outer side concave bank, and bottom layer sediment is guided by gravity to be conveyed to the outer side; the narrow-deep evaporation-inhibiting terrain unit adopts a narrow-deep compound section with a large depth-to-width ratio to collect clear water so as to inhibit evaporation; and the top of the threshold overflow terrain unit forms a physical threshold for flood and drought switching. The invention further discloses a corresponding implementation method. According to the system, by remodeling the geometric shape of a riverbed, self-adaptive switching between clear water returning, efficient sand discharging and evaporation restraining in the dry season and muddy water beach overflowing, ecological supply and automatic dredging in the flood season is achieved, and the problems of water-sand contradiction and ecological water use of wandering rivers in the arid region are effectively solved.

The present disclosure relates to the technical field of hydraulic engineering, in particular to a method and device for calculating the hydrological connectivity of river and lake floodplain and main channel, electronic equipment and medium, the method comprising: obtaining characteristic cross-section topographic data of the water area to be analyzed; calculating the division boundary of the floodplain and the main channel by the hydraulic depth objective function method; constructing the relationship function of the water area, wet perimeter and water level of the main channel and the floodplain, obtaining the water conveyance capacity function of the main channel and the floodplain; combining the total flow process to obtain the average flow velocity function of the main channel; identifying the start and end time periods of the floodplain hydrological connectivity event according to the water level, flow process and division boundary of the floodplain and the main channel; calculating the exchange volume of water storage and drainage on the floodplain and the entrainment exchange volume respectively, and finally determining the hydrological connectivity of the floodplain hydrological connectivity event. The present disclosure is based on cross-section topography and hydrological process data, and can obtain the hydrological connectivity index without complex two-dimensional / three-dimensional simulation, thereby providing a reliable technical basis for the treatment of the floodplain and the main channel, ecological restoration and engineering scheduling.

The present application relates to a high-water-level floodplain soft soil roadbed structure and construction method, belonging to the field of soft-bed foundation construction technology, which includes interlocking piles and supporting piles, wherein the interlocking piles are arranged in the soil layer of the floodplain along the outer contour of the floodplain, and the supporting piles are arranged in the soil layer of the floodplain. The interlocking piles are closer to the river than the supporting piles, and the soil layer on the interlocking piles is provided with a first backfill soil, and a supporting wall is arranged on the side of the first backfill soil facing the river, and a road is paved on the first backfill soil. The present application has the effect of reducing water and soil loss in the floodplain roadbed, thereby causing the road surface to settle in the later stage.

The invention belongs to the technical field of water conservancy ecological restoration, and particularly relates to an ecological restoration method for water conservancy project construction. According to the method, a polluted area with serious river water pollution in hydraulic engineering construction serves as a restoration area, and restoration of the polluted area comprises three aspects of river channel treatment, floodplain treatment and terrace treatment. When desilting treatment is carried out in river channel treatment, the extracted sludge is filtered through a mesh screen; on one hand, garbage which is difficult to degrade can be removed through filtering; and on the other hand, the filtered sludge is flatly laid on the trimmed floodplain and can be used as waste materials for planting plants, so that the effective utilization of the waste materials is realized. Meanwhile, during terrace treatment, herbs, arbors and shrubs are used for being matched with plant laying measures, a comprehensive vegetation system is established, and the diversity of river ecological landscapes is achieved. According to the invention, a zoning treatment form is adopted; the self-purification capacity of the river channel can be effectively improved, the pollution problem of the river channel is solved, and ecological restoration is achieved.

The invention relates to the technical field of geotechnical engineering parameter inversion, in particular to an inverse Nataf transformation theory-based joint inversion method for static and dynamic parameters of soft soil in the diffuse beach facies of the Yangtze River, and belongs to the related technical field of random stratum simulation. Comprising the following steps that a system collects and arranges silty clay samples of typical sites of the Yangtze River Beach, and key static parameters (c, phi, e, Es, w, IP and IL) and in-situ test SPT-N values of the silty clay samples of the typical sites of the Yangtze River Beach are obtained; a mixed edge distribution model (normal, logarithmic normal, Weibull, Gamma distribution) is adopted to flexibly represent the non-Gaussian statistical characteristics of each parameter; the method comprises the following steps: in a Nataf transformation system, quantifying correlation among parameters by using a Pearson correlation coefficient matrix, and constructing a joint probability distribution model of the Pearson correlation coefficient matrix; establishing an inversion model from random normal distribution of independent variable parameters to consideration of parameter distribution characteristics and parameter correlation conditions and a corresponding database through inverse Nataf transformation; and under the condition of parameter missing, intelligently recommending an optimal missing parameter value from the database based on known parameters by means of a nearest neighbor algorithm.

This invention discloses a forward and inverse calculation method for joint flood control optimization scheduling of reservoirs and floodplains. The method includes: constructing and calibrating a two-dimensional hydrodynamic model based on basic data; constructing and calibrating a piecewise Muskingen model based on the river simulation results of the calibrated two-dimensional hydrodynamic model; fitting the floodplain outlet flood diversion function based on the river flow and floodplain diversion process simulated by the two-dimensional hydrodynamic model to construct a floodplain outlet flood diversion model; setting the objective function and constraints for scheduling; performing inverse optimization of the scheduling scheme based on the piecewise Muskingen model and the floodplain outlet flood diversion model to obtain the optimal scheduling scheme; and inputting the inverse optimization results into the two-dimensional hydrodynamic model for forward calculation to obtain the scheduling result of the optimal scheduling scheme. The advantages are: it considers the floodplain diversion process under the influence of the river flow loop curve, enabling rapid and accurate simulation of flood evolution and floodplain diversion processes, and improving the timeliness and feasibility of considering floodplain diversion in the optimized scheduling model.

The present invention provides a reverse dredging and repair method for both sides of a river channel in situ based on a natural scouring line, comprising the following steps: dividing the river channel to be dredged into a number of dredged areas along the flow direction, and taking the most downstream dredged area as the first working area; obtaining the historical scouring line, overflow scouring line, floodplain scouring line and safety scouring line of the area to be dredged, and defining the original basin, overflow area, floodplain area and safety area; calculating the silt storage volume of the original basin, overflow area and floodplain area; taking the safety area as the reverse silt storage area, and calculating the silt holding volume; pumping all the silt from the original basin, overflow area and floodplain area to the reverse silt storage area; then going upstream to the next area to be dredged, completing the above steps until the source. The present invention reverses upstream to restore the disease to the repair level under natural bearing conditions, restore the balance of the ecological natural environment, and harmlessly treat the scouring and silting problem.

To provide a hinged gate capable of ensuring watertightness near the hinge without interfering with the swinging action of a door body even when the distance between the door body and a structure that pivotally supports the door body changes due to the swinging of the door body. [Solution] The overflow levee (13) has a plurality of hinges (2) arranged in parallel along the longitudinal direction on the bottom surface (13a) of the overflow levee (13), a door body (3) pivotally supported by the hinges (2) near the lower end of the support surface (32) facing the floodplain (10) so as to be freely swingable, and a watertight member (5) that seals the gap between the overflow levee (13) and the lower end (33) of the door body (3). The watertight member (5) is formed in a rectangular shape with a width equal to that of the door body (3) and is bent vertically, and has a flexible sheet (51) whose lower end (512) is fixed to the overflow levee (13) near the hinges (2) and whose upper end (513) is fixed to the door body (3) near the hinges (2), and a flat anti-bending plate (52) fixed to a flat portion (515) between the bent portion (511) of the flexible sheet (51) and the lower end (512) and upper end (513).

The utility model discloses a sand blocking structure suitable for river overtopping areas. An existing sand blocking structure in a river area is not firm in foundation, poor in structural strength and incapable of coping with destructive power of water flow. The concrete foundation comprises a concrete foundation, a stand column is arranged in the concrete foundation, the stand column comprises a vertical section and an inclined section, and the inclined section is arranged on the windward side; sand blocking plates are arranged between the stand columns, and the sand blocking plates and the stand columns are the same in shape; angle steel outer frames are fixed to the bottoms, the tops and the bent positions of the sand blocking plates and fixedly connected with the stand columns. The stand column is arranged in the concrete foundation, and the foundation is stable; alloy square columns are selected, and the sand blocking plates are made of zinc-added iron sheets with angle steel keel frames, so that the sand blocking plates can bear pressure, tearing and sand grinding of wind and can also bear impact damage and soaking damage of water.

The invention belongs to the technical field of hydraulic engineering, and discloses a method for predicting the water level flow of an overtopping river channel with vegetation, which comprises the following steps of: based on a symmetric compound river channel with vegetation, dividing the symmetric compound river channel with vegetation into a main channel and beaches positioned on two sides of the main channel, and constructing a water level flow analysis and calculation model suitable for the overtopping river channel with vegetation on the beaches; the model is solved by combining the average boundary shear stress of the main channel and the beach land and the apparent shear stress of the interface of the main channel and the beach land, and the water level flow of the vegetation overtopping river channel is obtained. The method can efficiently and accurately predict the water level flow of the beach overtopping river channel with the vegetation on the beach land, and fills the technical blank in the field.

The present application relates to a kind of navigation river ecological corridor repair method, comprising: S1: the navigation river ecological corridor is divided into river ecological space and bank area ecological space;S2: the river ecological space is divided into navigation area, riparian wetland and flood area transversely, and the bank area ecological space is divided into bank area passage buffer zone and ecological system service and protection zone;S3: the river ecological space is divided into river biodiversity protection zone and river ecological maintenance zone longitudinally, and the bank area ecological space is divided into seven categories such as forestland ecological system service and protection zone;S4: in riparian wetland, ecological revetment is set in drawdown area, and a variety of aquatic plant communities are set in the transverse direction in coastal shoal area and nearshore floodplain area;In bank area passage buffer zone, a variety of terrestrial plant community protection belts are set;In ecological system service and protection zone, a variety of plant community protection belts are set.The repair method can make the navigation river ecological corridor meet multiple functional requirements.