35 results about "Sediment transportation" patented technology

The invention discloses a submarine scoured pipeline stability early warning method based on artificial intelligence, and relates to the technical field of submarine pipeline protection, and the method comprises the steps: collecting and sorting submarine pipeline historical reconnaissance data and monitoring data of a target region; and constructing a seabed-submarine pipeline local fine three-dimensional hydrodynamic-sediment numerical model on the basis of a solution Navier-Stokes equation and a sediment transportation model. According to the method, the historical reconnaissance data, the monitoring data and the numerical model result are integrated, the coupling effect of various factors can be comprehensively considered, then the dynamic characteristics of seabed scouring are more comprehensively captured, key scouring factors influencing the stability of the pipeline are more accurately recognized, and meanwhile, the scouring process and result simulated by the numerical model are combined, so that the stability of the pipeline is improved. According to the method, the stress distribution and deformation conditions of the pipeline under different scour depths can be analyzed more accurately, then an early warning signal is sent out in advance, the risk that the pipeline is damaged due to scour is effectively reduced, and the reliability and accuracy of early warning are improved.

The invention provides a freezing circle watershed hydrological prediction method and system based on multi-source data fusion, and relates to the technical field of hydrological monitoring and sediment monitoring, and the method comprises the steps: obtaining a vibration signal of the interaction of a water flow and a riverbed and meteorological data in a region, and carrying out the preprocessing; the preprocessed meteorological data and vibration signals are input into a multi-source data fusion model, sequential feature extraction is conducted on the meteorological data and the vibration signals through a multi-layer perceptron in the multi-source data fusion model, the extracted sequential features are fused through a gating circulation unit, and multi-source data fusion features are obtained; and carrying out empirical mode decomposition and Hilbert spectrum analysis on the preprocessed vibration signal to obtain a plurality of signal characteristics such as instantaneous frequency and instantaneous amplitude of the vibration signal, inputting the signal characteristics and the multi-source data fusion characteristics into a hydrological parameter prediction model, and outputting corresponding predicted values of the water flow velocity, the flow and the sediment transport capacity.

The invention discloses a river sediment scouring and silting simulation method, and belongs to the technical field of hydraulic engineering and hydrological simulation. In order to solve the problem that it is difficult to accurately simulate the river sediment erosion and deposition evolution trend in the prior art, the method comprises the steps that on the basis of actually measured topographic data and channel chart data of a target river reach, a water-sediment coupling mathematical model is constructed by adopting a non-uniform sediment unbalance sediment transportation theory, and the model interacts with a water power module and a wave module in real time through an MCT coupler; actually measuring a flood and water and sediment series data calibration verification model; and obtaining future water and sediment process data predicted by a plurality of climate modes, inputting the future water and sediment process data into the verified model, dividing river reaches according to the characteristics such as riverbed gradient and river channel curvature, and calculating the erosion and deposition amount of each sub-river reach in the future 50 years. The method can simulate water flow and sediment movement of rivers, reservoirs and lakes, can be applied to the fields of riverway regulation planning, flood control and disaster reduction decision making, reasonable development and utilization of water resources and the like, and provides important data support and scientific basis for construction and management of water conservancy projects.

The invention relates to the technical field of submarine cable engineering equipment, and discloses a submarine cable bending limiter failure analysis method and system, and the method comprises the steps: constructing a large-scale wave water tank experiment system; a wave flow test is carried out in a large-scale wave water tank experiment system, and three-dimensional terrain evolution data of a scouring pit formed at the single-pile foundation model and dynamic strain response and displacement of the submarine cable bending limiter model are obtained; constructing a hydrodynamic force-sediment transportation-submarine cable motion coupling numerical model according to the three-dimensional terrain evolution data, the dynamic strain response and the displacement; and according to the hydrodynamic force-sediment transportation-submarine cable motion coupling numerical model and different hydrodynamic force conditions, the quantitative relation between the scour range extension and the failure threshold value of the submarine cable bending limiter is determined. According to the scheme, the tensile stress and bending response change rule of the submarine cable and the bending limiter can be quantitatively analyzed, and reference is provided for optimal design and protection of the offshore wind power pile foundation submarine cable bending limiter.

The invention discloses a reservoir desilting method and device using fixed jet flow, and relates to the technical field of water conservancy and hydropower engineering desilting. According to the method, the flow speed, pressure, mud layer thickness and gradient parameters of water around a nozzle are collected in real time; calculating a jet flow angle compensation coefficient, and identifying a nozzle direction stable state; on the basis of a nozzle set with stable direction, a nozzle group is constructed and a time sequence differential control table is established by combining a topological relation between nodes and disturbance propagation characteristics, so that ordered migration of turbulent flow disturbance is realized; sediment concentration, flow velocity and flow data are collected in a flow guide plate and a sediment discharge port area, and a desilting efficiency index is calculated and used for evaluating sediment transportation continuity and flow guide performance; and a comprehensive operation optimization coefficient is generated through a multivariable adaptive weighted fusion algorithm, and the system automatically executes adaptive regulation or sends out a manual intervention prompt. According to the method, self-monitoring, self-correction and global optimization of the fixed jet system can be achieved, and the reservoir dredging efficiency and the operation stability are remarkably improved.

The invention relates to the technical field of coastal engineering, and discloses a coastal sand transport calculation method and system for a sandy coast, and the method comprises the following steps: obtaining target parameters and initial profile data of a target coast; calculating a profile change item caused by transverse sediment transport through a one-dimensional beach evolution model; an equivalent coastal distance parameter is innovatively introduced, and the coastal sediment transport gradient is rapidly estimated; calculating an elevation change item caused by coastal sediment transportation in combination with the gradient; overlapping transverse and coastal change items to obtain complete bed elevation evolution data; iteratively calibrating the equivalent coastline distance parameter based on historical terrain data until the simulation result conforms to the actually measured shoreline change; and finally outputting the calibrated coastal sediment transportation influence prediction. And the problem of prediction deviation caused by neglecting the coastal sediment transport gradient of a traditional one-dimensional beach evolution model can be solved.

The invention discloses an in-situ suspended sediment concentration and flux prediction system based on conductivity data, and relates to the technical field of marine environment in-situ monitoring, the in-situ suspended sediment concentration and flux prediction system comprises a data processing and visualization platform, the data processing and visualization platform is in communication connection with the following modules: a data acquisition module, a data processing module, a data processing module and a data processing module, the method is used for extracting multi-dimensional water body data collected in an in-situ environment from a database. According to the method, a continuous vertical concentration-flow velocity matrix is generated through coupling corrected suspended sediment concentration data and flow velocity data, a flux prediction model is established in combination with historical data, a nonlinear relationship between sediment transportation flux and flow velocity-concentration is analyzed, and a random forest algorithm is adopted to determine the flow velocity-concentration of the sediment. The flow velocity, the conductivity interval depth and the corrected suspended sediment concentration serve as input variables, a sediment flux prediction value is output, static and dynamic comprehensive prediction of sediment fluxes at different moments and at different positions is achieved, and a quantitative analysis tool is provided for ocean sediment dynamic research and mineral environment evaluation.

The spiral river dredging sediment conveying equipment comprises a ship body, a working bin is formed in one side of the ship body, a collecting cavity is formed in the other side of the ship body in a hollow mode, a driving assembly is installed in the working bin, one end of the driving assembly is fixedly connected with the bottom of one end face of a movable plate, and the movable plate is movably arranged in the working bin; the top of one end face of the movable plate is fixedly connected with one end of a material pressing assembly, the middle of the material pressing assembly is hinged to a support, the bottom end of the support is fixedly connected with the top end of the ship body, and the bottom of the other end of the material pressing assembly is fixedly connected with a pressing disc. A tubular spiral conveyor is arranged on the side, away from the pressing disc, of the top of the feeding hopper and fixedly connected with a plurality of supporting bases, the bottom ends of the supporting bases are fixedly connected with the bottom end of the ship body, the top of the end, away from the feeding hopper, of the tubular spiral conveyor is fixedly connected with one end of a feeding pipe, and the other end of the feeding pipe is fixedly connected with one end of a connecting hose.

The invention provides a river bed evolution equilibrium theory-based Yellow River downstream sediment transportation water demand calculation method, system and equipment and a medium. The method comprises the following steps of S1, acquiring river channel information and sediment parameters of a Yellow River downstream target river reach; calculating a comprehensive stability index of a riverbed according to the riverway information and the sediment parameters; s2, on the basis of the river channel information, the sediment parameters and the riverbed comprehensive stability indexes, balanced river channel parameters are calculated through a simultaneous water flow continuity equation, a water flow motion equation and a river facies relation; and S3, substituting the balanced riverway parameters and the sediment parameters into the sediment transport equation to obtain the saturated sediment transport capacity of the balanced riverway, and calculating the sediment transport water demand under different sediment coming scenes according to the saturated sediment transport capacity of the balanced riverway. According to the method, the sediment transportation water demand under different sediment incoming amounts and riverbed boundary conditions in the future period can be accurately calculated.

The retaining dam with the sediment separation function comprises a supporting structure arranged on the upstream face of a dam body, a protection structure and a sediment cleaning mechanism, the supporting structure comprises a supporting column arranged on the dam body and a first sediment conveying mechanism, and the sediment cleaning mechanism comprises a third sediment conveying mechanism and a second sediment conveying mechanism; a discharge port of the second silt conveying mechanism and a discharge port of the third silt conveying mechanism are respectively connected with a feed port of the first silt conveying mechanism; and a discharge port of the first silt conveying mechanism is connected with the top surface of the dam body. The protection assembly is installed on the upstream side of the gate, the upstream side of the gate can be protected through the protection assembly, silt on the upstream side of the protection assembly is conveyed into the vertical first silt conveying mechanism through the second silt conveying mechanism and the third silt conveying mechanism which are horizontally arranged, and the silt is conveyed out through the first silt conveying mechanism; the silt is timely cleaned, the silt is prevented from being accumulated below the upstream side of the dam body, and normal work of the gate is ensured.

The invention discloses a sediment source tracking method for numerical simulation of clastic sedimentary rock deposition, and the method comprises the following steps: S1, data collection: the geological data of a research area are widely collected, the topographic data cover a high-precision digital topographic measurement result, and the accurate mastering of topographic relief is ensured; geochemical data of the rock sample are obtained through an advanced analysis instrument in a professional laboratory, and the accuracy of element analysis is guaranteed; deposited layer thickness data are explored by means of various exploration means. According to the established numerical model, various factors in the sediment carrying and depositing process are comprehensively considered, the movement track of the sediment can be simulated more truly, the tracking precision is improved, refined tracking of the sediment source is achieved through multi-level tracer system construction and tracer dynamic updating management, and the tracking precision is improved. The source and movement history of the sediment can be better reflected, and the advantages of the method in the aspects of accuracy, efficiency and reliability are ensured through strict effect evaluation.

The utility model discloses a mud-water separation treatment device, which relates to the technical field of mud-water separation, and comprises a mounting platform, the inner side of the mounting platform is fixedly connected with a collecting table, and the upper side of the mounting platform, close to the left and right sides, is fixedly connected with four vortex separators which are distributed in a rectangular shape; a discharging pipe is fixedly connected to the middle of the lower side of the collecting table, stirring mechanisms are movably connected to the positions, close to the upper side, of the front wall and the rear wall of the collecting table in a sleeving mode, and a conveying mechanism is movably connected to the outer side of the vortex separator in a sleeving mode. According to the mud-water separation treatment device disclosed by the utility model, the collecting table is arranged at a high position, and then the silt discharge hole of the vortex separator is directly formed in the collecting table, so that the vortex separator directly discharges silt into the collecting table, the silt is conveyed into the silt treatment device by utilizing gravity, and a mechanism pipe can be quickly disassembled when the device is blocked; and the operation is convenient, and the problem of blockage caused by direct pipeline conveying is avoided.

The invention relates to the technical field of environmental treatment, in particular to an inland water sediment treatment system and method. The system comprises a suction unit, a temporary storage unit, a mixing unit, a curing and adding unit and a dehydration storage yard, wherein the suction unit is used for extracting bottom mud of a water body and conveying the bottom mud to the temporary storage unit, the curing and adding unit is used for injecting a stabilizer into the mixing unit, and the mixing unit enables the bottom mud, airflow and the stabilizer to form a uniform gas-liquid-solid three-phase system; high-risk exchangeable heavy metal, high-risk carbonate combined heavy metal and high-risk iron and manganese oxide combined heavy metal are directionally converted into stable mineral phases, dewatering and pennisetum hydridum planting are matched, residual heavy metal is adsorbed for a long time by means of the hyperaccumulation characteristic of pennisetum hydridum, and end ecological management and control are achieved. According to the scheme provided by the invention, the links of desilting, heavy metal curing, dewatering and repairing are integrated, so that the equipment redundancy can be effectively reduced, meanwhile, the requirement of large-scale bottom mud outward transportation and disposal can be omitted, and the transportation and landfill cost is greatly reduced.

The invention provides a water storage area hydrological condition information calculation method and device and related equipment, and the method comprises the steps: obtaining the water level data of a water inlet of a water storage area and the sediment deposition data of a target area in the water storage area; according to the water level data, the water flow speed of the target area in the target time period is calculated; calculating the sediment transport rate of the target area in the target time period according to the water flow velocity and the sediment deposition data; and hydrological condition information of the water storage area is obtained through calculation according to the water flow speed and the sediment transportation rate. Therefore, compared with a mode of manually calculating the hydrological condition information of the water storage area, the method can remarkably improve the calculation efficiency of the hydrological condition information of the water storage area.

The application discloses a ship sediment filtering system, which comprises a sea gate, a filtering device and a water pump, the sea gate comprises an input port and an output port, the input port is provided with a coarse filter grid, the inner bottom of the sea gate is provided with an inclined sedimentation plate which is inclined to the input port, the inner top of the sea gate is provided with a downwardly extending spoiler, the input end of the filtering device is connected with the output port, the input end of the filtering device is provided with a first water inlet valve, the filtering device is provided with a filter layer, the input end of the filtering device is communicated with the output end of the filtering device through the filter layer, the output end of the filtering device is provided with a first water outlet valve, the input end of the water pump is connected with the output end of the filtering device, and the output end of the water pump is connected with a ship water equipment. The application can filter the sediment in turbid seawater, deliver clean seawater to the ship water equipment, thereby guaranteeing the equipment reliability, and has high filtering efficiency. The application also provides a ship sediment filtering method.

The utility model discloses channel dredging spoil mud and sand separation treatment equipment which comprises a flushing tank, the bottom of the flushing tank is communicated with a settling tank, the left side of the top of the flushing tank is communicated with a flushing water pipe, and the right side of the top of the flushing tank is communicated with a mud and sand conveying pipe. The oscillating hammer is driven by the driving motor to rotate to be in discontinuous contact with the bottom of the sieve plate, so that the right side of the sieve plate shakes up and down to shake off large gravel above the sieve plate into the separation pipe, then the large gravel falls into the coarse sand box to be collected, and the large gravel enters the coarse sand box and then is filtered through the filter plate; water containing fine gravel and soil flows into the settling tank to be settled, and fine sand grains can be discharged through the sand discharging valve pipe, so that large-particle stones and gravel in silt can be conveniently separated, coarse and fine sand can be conveniently screened, large stones are prevented from entering a pipeline to cause pipeline blockage, and the screened sand can be conveniently taken out; and the use of a user is facilitated.

The invention relates to the technical field of sediment conveying, in particular to an intermittent conveying system which comprises a conveying mechanism, a sediment receiving mechanism and a control circuit, the conveying mechanism is composed of a conveying belt, conveying wheels, a motor, a belt wheel and a belt, and the sediment receiving mechanism comprises a plurality of sediment receiving frames arranged on the conveying belt in a matrix mode. The control circuit comprises a power supply and a wheel disc conductive mechanism. The wheel disc conductive mechanism is composed of a mounting plate, a conductive rod, a driving motor and a plurality of conductive sheets. In addition, the adjacent sand receiving frames are communicated through pipelines, filter screens are arranged in the sand receiving frames, the control circuit may be provided with slide rheostats, the conveying wheels may be gears, the conveying belt may be an inner toothed belt, and the system may further comprise a conveying table. The technical effects that intermittent conveying of materials is achieved, sand is filtered, and the conveying speed is convenient to adjust are achieved.

The invention discloses a hydrogeological prospecting drilling device and method, and relates to the technical field of drilling device.The hydrogeological prospecting drilling device comprises a bottom plate, a top plate is fixedly connected to the upper portion of the bottom plate, and a prospecting fine adjustment assembly is arranged on the top plate; a threaded rod rotates to drive a transverse plate to move back and forth in the vertical direction, a second servo motor is started to drive a movable plate to move back and forth in the horizontal direction, an ore prospecting storage assembly is arranged on the movable plate, and a V-shaped block, a bending spring and a transparent storage box are movably connected to the drilling pipe. A third servo motor is started to drive a rotating thread and a drill bit to rotate, a spiral rod rotates to convey silt to the outside, an extrusion block stores part of the silt, a motor is started to drive a moving rod to push a pushing pipe, and a V-shaped block moves along a bending spring in the pushing process of the pushing pipe; sediment can be stored in the transparent storage box.

The invention relates to the technical field of coast engineering analysis, in particular to a sandy coast stability-oriented multi-factor coast system restoration optimization method, which comprises the following steps of: identifying a to-be-restored section which faces a serious erosion or degradation problem in a target sandy coast; setting a repairing target; constructing a multi-factor restoration scheme set comprising engineering measure factors and ecological measure factors; based on simulation of a preset hydrodynamic force-sediment transportation coupling model, an evaluation index of each restoration scheme simulation result is extracted; comparing the evaluation index of each repair scheme with a repair target, and calculating a comprehensive benefit value of each repair scheme; selecting the restoration scheme with the highest comprehensive benefit value as an optimal restoration scheme; and outputting an optimal repairing scheme. According to the method, each restoration scheme is converted into a physical input scene in the model by establishing the hydrodynamic force-sediment transportation coupling model, and the dynamic response of the restoration scheme to shoreline change and vegetation survival is simulated and predicted.

The application discloses a spiral river dredging and silt conveying equipment, which comprises a ship body, a working bin is formed in one side of the ship body, a collecting cavity is hollowed in the other side of the ship body, a driving assembly is installed in the working bin, one end of the driving assembly is fixedly connected with the bottom of one end surface of a movable plate, the movable plate is movably arranged in the working bin, the top of the one end surface of the movable plate is fixedly connected with one end of a material pressing assembly, the middle part of the material pressing assembly is hingedly connected with a support, the bottom end of the support is fixedly connected with the top end of the ship body, the other end of the material pressing assembly is fixedly connected with a pressing disc, the bottom of the pressing disc is provided with a feeding hopper, the feeding hopper is fixedly connected with the top end of the ship body, the top of the feeding hopper away from the pressing disc is provided with a tubular screw conveyor, a plurality of supporting seats are fixedly connected with the tubular screw conveyor, the bottom end of each supporting seat is fixedly connected with the bottom end of the ship body, the top of one end of a feeding pipe is fixedly connected with the top of the other end of the tubular screw conveyor, the other end of the feeding pipe is fixedly connected with one end of a connecting hose.

The utility model discloses a double-layer cofferdam for an anti-scouring bridge, which comprises an inner cofferdam, an outer cofferdam positioned on the outer side of the inner cofferdam and at least one protection unit positioned on the outer side of the outer cofferdam and used for conveying silt on the downstream of the outer cofferdam to the upstream of the outer cofferdam, the outer cofferdam comprises a tip upper outer cofferdam plate facing the water flow direction, two side outer cofferdam plates connected with the tip upper outer cofferdam plate through positioning columns and a lower outer cofferdam plate connected with the two side outer cofferdam plates. According to the utility model, the problem of sediment loss caused by river scouring near the cofferdam is solved.

The invention provides a multi-pit-pond area sediment transport ratio optimization calculation method and system, and relates to the technical field of water and soil conservation and sediment transport, and the method comprises the steps: obtaining grid data (such as type, area, water storage capacity, hydraulic retention time and hydrological characteristics) of pits and ponds; calculating sediment interception efficiency and a water flow delay factor; the confluence time is optimized; iteratively calculating the sediment transportation influence; and the sediment conveying ratio is optimized. According to the method, the silt conveying prediction accuracy is improved, the unique characteristics of the multi-pit pond area are reflected, and support is provided for drainage basin silt management.

The application discloses a three-degree-of-freedom underwater dredging robot structure and a dredging method, and the structure comprises a cutter suction dredging mechanism, a connecting device and a caterpillar type pressure-resistant power chassis. The cutter suction dredging mechanism comprises a cutter suction dredging arm, a pump suction pipeline, a submerged slurry pump and a sediment conveying pipe; the connecting device comprises a pluggable connecting plate and a fixing pin shaft; and the caterpillar type pressure-resistant power chassis comprises a three-degree-of-freedom mechanical arm support frame, a caterpillar system and a chassis support frame. The application adopts full electric drive in general, has fewer lines and pipelines, guarantees compactness of the robot structure, makes the robot more convenient to carry and transport, and is more flexible in movement. The front end of the three-degree-of-freedom mechanical arm support frame provided by the caterpillar type pressure-resistant power chassis can be connected with the dredging arm in a pluggable mode through the connecting device, so that the dredging arm is convenient to disassemble and maintain, and the three degrees of freedom fully meet the movement requirements in the dredging process.

The invention relates to the technical field of soil erosion assessment, and provides a sediment transport assessment method and system based on vegetation dynamics, a medium and equipment, and the method comprises the steps: dynamically selecting a comprehensive roughness factor or a normalized vegetation index for each pixel in a to-be-assessed region based on a drought index, so as to calculate slope weighting factors of different pixels, calculating a connectivity index by combining the gradient of each pixel and the length of a water flow path from the steepest slope direction to the downstream river channel; and for each grid in the to-be-evaluated region, based on the connectivity index, calculating to obtain a sediment transport rate, based on daily precipitation, determining a transport threshold factor, utilizing the transport threshold factor to dynamically regulate and control the sediment transport rate, and taking the product of the regulated and controlled sediment transport rate and the soil erosion amount as the sediment yield. The connectivity of an overestimation vegetation extremely sparse region can be avoided, so that the precision of sediment yield assessment is improved.

The invention discloses a control system and method for reservoir desilting and sand conveying pipelines serving as clean water of sludge stacking reservoirs to return to the reservoirs, and relates to the technical field of reservoir desilting, the control system comprises three reservoir tail sludge reservoirs, a water pumping component, a sedimentation component and a water return component, the water return component and the water pumping component are arranged at the ends of the reservoir tail sludge reservoirs, and the number of the reservoir tail sludge reservoirs is three; the water pumping component comprises a silt conveying pipeline and a silt pump, the silt pump is arranged on the upper portion of the reservoir tail silt reservoir and connected with the silt conveying pipeline, and the silt conveying pipeline is designed in a closed mode. According to the control system and method for the reservoir desilting and sand conveying pipeline serving as the clean water returning of the sludge stacking reservoir, the sludge is conveyed to the sludge stacking reservoir soil field at the tail of the reservoir for centralized treatment through the conveying pipeline, water flows back to the reservoir, cyclic utilization and closed treatment of water resources are achieved, the reservoir desilting cost is saved, and the water quality and the water amount are guaranteed.

This invention discloses a continuous treatment method for environmentally friendly dredging and solidification of polluted river and lake sediment, belonging to the field of environmental engineering technology. The method includes the following components: S100 ecological dredging control range and depth, S200 sediment transportation and dewatering, S300 solidification and resource utilization, and S400 residual water treatment and reuse. By accurately determining the control range and depth of ecological dredging and using a hydrodynamic model to simulate the influence of flow velocity and direction on the migration and transformation of pollutants in sediment, this method effectively avoids large-scale release of pollutants during dredging. At the same time, in the sediment transportation and dewatering stage, efficient transportation equipment and optimized filtration devices are used to reduce disturbance and release of sediment during transportation and dewatering, further reducing the risk of secondary pollution.

The invention discloses a full-slope erosion sediment transport simulation method integrating soil properties and land utilization, which comprises the following steps: respectively collecting erosion sediment transport basic data corresponding to full slopes of a ridge and loess hills slope and a gully slope in a drainage basin, including soil data, topographic data, land utilization data, vegetation data and water and sediment data; automatically judging the erosion environment type of the whole slope based on erosion sediment transport basic data, topographic conditions and land utilization type boundary conditions, and obtaining initial to-be-optimized parameters influencing erosion based on the erosion environment type; updating the initial to-be-optimized parameters based on a cuckoo search algorithm until optimal parameters are obtained; the slope combination and the slope length in the topographic condition and the land utilization type and vegetation coverage rate combination in the land utilization type boundary condition are changed, multiple different scenes are obtained, the whole slope sediment production and transportation evolution process is simulated based on the different scenes and the optimal parameters, and the slope sediment transportation rates under different conditions are obtained.

The invention belongs to the technical field of silt conveying, and particularly relates to a high-efficiency silt conveying method which comprises the following specific steps: constructing a deposition reservoir at one end of the upstream of an overground river which is seriously deposited by silt; a mud unloading wharf is built behind the dam body of the sedimentary reservoir dam; a left bank mud stirring machine and a right bank mud stirring machine are arranged on the sedimentation reservoir dam body; a transition groove is formed in the front of a dam body of the sedimentary reservoir dam; the front end of the transition groove is connected with an anti-deposition aqueduct; the silt conveying method is low in water resource consumption, low in influence on the ecological environment and high in efficiency, is used for solving the problem that a large amount of silt is deposited in a river channel, and comprises the following steps: excavating silt in a deposition reservoir in a dry season, inputting the silt into a stirrer, and stirring the silt into a water mixture with a proper ratio; and then the water enters an anti-deposition aqueduct with a specific function and is conveyed to the sea with the shortest distance from the anti-deposition aqueduct.

The invention relates to the technical field of water conveying pipelines, and discloses an inverted siphon mud discharging device which comprises a water inlet pipe, a water outlet pipe, an inverted siphon, a sediment storage pipe, a first valve, a pressurizing assembly and a sediment discharging assembly. The first valve is arranged between the sediment storage pipe and the inverted siphon, the pressurizing assembly is arranged at one end of the sediment storage pipe, and the sediment discharging assembly is arranged at the end, away from the pressurizing assembly, of the sediment storage pipe. Sediment can be conveyed into the sediment discharging assembly in cooperation with the pressurizing assembly, the sediment is prevented from being deposited in the inverted siphon, the water conveying capacity of the inverted siphon is guaranteed, the structure is simple, operation is convenient, and the pipeline does not need to be manually cleaned.

The present application provides a kind of multi-pit pond area sediment transport ratio optimization calculation method and system, it is related to water and soil conservation and sediment transport technical field, method includes obtaining the grid data (such as type, area, water storage capacity, hydraulic residence time and hydrological characteristics) of pit pond;Calculate sediment interception efficiency and flow delay factor;Optimize confluence time;Iterative calculation of sediment transport influence;Optimize sediment transport ratio.The present application improves the accuracy of sediment transport prediction, reflects the unique characteristics of multi-pit pond area, and provides support for watershed sediment management.