62 results about "River sediment" patented technology

The invention discloses a river sediment multi-parameter sensing self-adaptive sampling method and system, and relates to the technical field of environment monitoring, and the method comprises the following steps: S1, synchronously collecting the pH value, electrochemical potential, heavy metal binding state proportion, water body flow velocity and hydrodynamic parameters of sediment through a sensing device, and establishing a multi-parameter response baseline; and S2, based on the multi-parameter response baseline, collecting monitoring data in real time and executing differential analysis, and identifying a high-risk time period when the pH value change rate exceeds a threshold value and the heavy metal binding state proportion fluctuates. By constructing a multi-parameter response baseline and a linkage recognition mechanism, early sensing and accurate sampling of heavy metal release are realized, a closed-loop response system is constructed by combining chemical form analysis, self-correction and data feedback optimization recognition model, and the accuracy and intelligent level of pollution monitoring are improved.

The invention provides a river sediment physical habitat evolution identification method, device and system and a medium. The method comprises the following steps: acquiring a multi-temporal remote sensing image and hydrological data (flow Q, water level Zw and slope S), screening and other hydrological condition image pairs; extracting a water surface range, and calculating the average width B of the main groove; deducing the average water depth h by using a Manning formula, and calculating the riverbed elevation zbed by combining the Zw; the difference value delta zbed of zbed in different periods is calculated, and the substrate state is judged according to the difference value delta zbed and a threshold value epsilon; and performing segment processing along the center line to output a spatial distribution result. On-site measurement is not needed by relying on conventional data, and consumption is reduced; water level interference is eliminated through equal hydrological condition matching, and comparability is ensured; water depth inversion and differential analysis directly reflect scour deposition and quantitatively reveal rules; long-distance automatic processing improves space-time coverage capability and precision, and provides a basis for river regulation, ecological restoration and drainage basin management.

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 PVA fiber reinforced Yellow River sediment geopolymer concrete as well as a preparation method and application thereof, and belongs to the technical field of concrete. According to the concrete, fly ash and slag powder are used as precursors, an alkali activator is used for excitation, Yellow River silt is used for replacing 10-40% of natural river sand to serve as fine aggregate, and PVA fibers with the volume fraction being 0.2-0.8% are doped for reinforcement and toughening. The water-glue ratio is 0.45, the bone-glue ratio is 3.0, and the sand ratio is 40%. The preparation method comprises the steps of alkali activator preparation, dry mixing, wet mixing, fiber dispersion, forming and curing. The material can be applied to hydraulic engineering, building structures and road engineering, and has the advantages of excellent mechanical properties, low carbon, environmental protection, resource utilization of Yellow River silt and the like.

The utility model provides a lake and river sediment particulate matter collecting device, which belongs to the field of hydrogeological technical engineering, is used for solving the problems that in the prior art, the efficiency is low in the lake and river sediment sampling process, and interference is caused by the influence of manual operation on sediment resuspension, and comprises a collector fixing seat and a collector, the collector fixing seat is divided into the counterweight piece and the supporting fixing piece, so that the collector is kept in a vertical state in the sinking process and when the collector is fixed in lake or river sediment; the collector is divided into the collecting barrel body and the collecting barrel cover, the closed ring is arranged in the center of the top end of the collecting barrel body, the collecting barrel cover is designed into a plurality of cover bodies, the bottom ends of the cover bodies are hinged to the top end of the barrel wall of the collecting barrel body, and the top ends of the cover bodies are fixedly connected with the recycling ropes. The recovery rope drives the plurality of cover bodies to be closed at the same time, so that closing of the collection barrel cover and recovery of the device are completed, the sampling efficiency is improved, and interference caused by resuspension of bottom mud is reduced.

The invention relates to the technical field of river sediment monitoring, in particular to a system for monitoring the sediment content of a river in a sandy and coarse sand area, and aims to solve the problems that the sediment content monitoring deviation is large due to sedimentation and shielding of coarse particles in the river in the sandy and coarse sand area and long-term abrasion of a sensor, and a traditional method does not cooperatively process dual interference. Penetration signals and coarse particle sedimentation characteristic signals are synchronously collected through double-frequency-band ultrasonic waves and transmitted after time synchronization, the dynamic particle size inversion unit inverts the coarse particle distribution proportion according to the signal attenuation rate, shielding virtual contribution is removed through an interference compensation algorithm, a sand content correction value is output, and the sand content is calculated. And the sensor wear compensation unit determines an attenuation correction coefficient by using the resonant frequency deviation of the piezoelectric ceramic vibrating reed, performs wear compensation on a correction value, and finally outputs accurate sand content data through data quality verification, temperature compensation and dimension normalization processing, thereby effectively eliminating the dual influences of coarse particle shielding and equipment wear, and improving the accuracy of sand content measurement. And the river sand content monitoring precision in the sandy and coarse sand area is improved.

The utility model relates to the technical field of river sediment, and discloses a river sediment sampling device which comprises a fixing rod, a fixing plate is fixedly arranged in the fixing rod, a spring is arranged at the top of the fixing plate in the height direction, a sliding block is fixedly connected to the bottom end of the spring, and the sliding block is installed in the fixing rod in a sliding mode. A sampling barrel is inserted into the sliding block, a connecting rope is fixedly connected to the top end of the sampling barrel, the other end of the connecting rope is fixedly connected with the bottom end of the fixing plate, a fastener is fixedly arranged on the outer side of the fixing rod, and one end of the fastener is buckled with the inner wall of the sliding block. The sampling barrel can push the sliding block to be buckled with the fastener, so that the spring deforms, then the lengthening rod and the fixing rod are spliced, the sampling barrel is located at the bottom of a river channel, then the fastener and the sliding block are separated through a pulling structure, and the deformed spring can push the sampling barrel to pop out so as to be inserted into sludge, so that the sampling barrel is sampled, and the use is convenient.

The application discloses a kind of long-time sequence monitoring method and system of suspended load sediment concentration based on multiple river section scales, and relates to river monitoring technical field.The method includes the following steps: obtaining long-time sequence multispectral remote sensing image data and environmental data of the river to be detected, and pre-processing the multispectral remote sensing image data;According to the pre-defined river boundary, divide the river section, and extract the water body pixels of each river section by water surface extraction method;Using median extraction strategy to calculate the band reflectance and band index of each river section;Using machine learning algorithm to predict the suspended load sediment concentration of band reflectance, band index and environmental data.The present application carries out long-term monitoring of sediment concentration of different river section scales based on remote sensing data, and predicts by combining machine learning algorithm, which can accurately grasp the subtle dynamic changes of river sediment.

The application discloses the technical field of soil and water loss protection devices and relates to a soil and water conservation device for reducing river sediment accumulation, which comprises a mounting seat and symmetrically arranged sand taking pool groups, the sand taking pool groups comprise sand storage pools and sand setting pools arranged in sequence, and conveying belts are arranged between the sand storage pools and the sand setting pools; an upwardly protruding and downwardly inclined drainage table towards the two side sand setting pools is fixedly arranged at the top of the mounting seat, a drainage groove downwards inclined towards the two side sand setting pools is arranged in the middle of the drainage table, the drainage groove is communicated with the sand setting pools, and the drainage table and the drainage groove are arranged in sequence according to the flowing direction of the river.

The application relates to a plain river sediment concentration recovery method, a system and a storage medium, the method comprising the following steps: reading historical hydrological data of a hydrological station, including daily flow and daily sediment rate; defining a target period and a candidate period; obtaining a comprehensive similarity; selecting a candidate year or a candidate year set with the maximum comprehensive similarity as a reference hydrological year of the target period; respectively performing fitting on a correlation function curve; calculating and supplementing the sediment concentration of the target period; and performing pseudo-missing test. The application considers the water and sediment characteristics of dry and flood periods, can effectively control the reconstructed annual total sediment discharge, and has smaller daily process error and high efficiency in filling the missing historical sediment data.

The invention discloses a traceability analysis system for a river sediment source in a cold highland area, and belongs to the technical field of sediment traceability. Comprising a data acquisition module, a sediment fingerprint database building module, a source region identification model building module, a sediment source inversion module, a space-time thermodynamic diagram generation module and a visual display module. And the sediment source inversion module is used for carrying out source contribution rate inversion on sediment samples collected by the target river section, the inversion method adopts a non-negative least square method, the feature vectors of the target samples are fitted on the feature vectors of all the source areas in the fingerprint database, and the contribution proportion of each source area to the samples is calculated. The method does not depend on initial artificial point distribution or physical marking of a field source area, a source area fingerprint database is constructed based on natural fingerprint characteristics of sediment, a passive, non-interference and traceable traceability identification mode is achieved, and the method is suitable for application requirements under extreme terrains and seasonal freeze-up restrictions in cold and cold mountainous areas.

The invention discloses an automatic drifting type river sediment cleaning and transporting integrated device which comprises a base, an extraction device, a treatment device and a transporting device. The treatment equipment comprises a shell, and a screening barrel, a screw rod and a water filter screen which are arranged in the shell, the extraction equipment comprises a suction pump, a first suction pipe and a second suction pipe, the second suction pipe is communicated with the screening barrel, a rotating motor is arranged on the side wall of the shell, and an output shaft of the rotating motor is fixedly connected with the screening barrel; the screw rod is slidably sleeved with a spiral piece and two extrusion plates. A control assembly is arranged in the shell; the transportation equipment comprises a spiral conveyor and a communicating pipe; according to the equipment, desilting and transportation are combined, sludge enters the transportation equipment after being subjected to dewatering treatment after being sucked, and the desilting and transportation efficiency is improved.

The invention discloses a method for determining an unsaturated parameter in a reservoir downstream river sediment recovery saturation coefficient, and belongs to the field of river sediment kinematics. The method comprises the following steps: acquiring measurement data of a vertical line average sediment content and a vertical line average sediment carrying capacity of a reservoir downstream river; obtaining the ratio of the average sand content of the vertical line to the average sand carrying capacity of the vertical line based on the measured data; obtaining test data, determining an initial power function relational expression of the unsaturated parameters and the ratio based on the test data, obtaining unknown parameters of the initial function relational expression by fitting the test data, and obtaining a final power function relational expression; and determining an unsaturated parameter in the reservoir downstream river sediment recovery saturation coefficient based on the final power function relational expression. The method can be directly applied to calculation of the sediment recovery saturation coefficient under the condition that the bed sand particle size is 0.18-0.28 mm, and key parameter support is provided for accurate prediction of erosion and deposition of the downstream river channel of the reservoir.

The invention relates to a stratified sampling pipe for sampling river sediment and a use method thereof. The device is suitable for the technical field of river sediment sampling. According to the technical scheme, the sampling device comprises a sampling barrel which is of a semi-cylindrical structure, a mud drilling base is arranged at any end of the sampling barrel, a mud drilling opening is formed in the mud drilling base, a plurality of sampling observation openings are formed in the inner side wall of the sampling barrel in a penetrating mode, and a protection part covering the sampling observation openings is detachably arranged on the outer side wall of the sampling barrel; the half pipe is of a semi-cylindrical structure and is detachably mounted on the mud drilling base, and the half pipe and the sampling barrel are matched to define a cylindrical barrel body; the adjusting assembly is arranged at the end, away from the mud drilling base, of the cylindrical barrel in a sleeving mode and used for locking the half pipe and the sampling barrel; the non-return assembly is arranged in the mud drilling opening of the mud drilling base, can open the mud drilling opening to enable the mud sample to enter the cylindrical barrel when the mud drilling opening is inserted downwards, and can close the mud drilling opening when the mud drilling opening is lifted upwards to prevent the mud sample in the pipe from flowing back; and the sampling assembly is matched with the sampling observation opening in an inserting manner.

The invention discloses a wandering section river sediment deposition treatment scheme optimization method. The method comprises the following steps: A, establishing a simulation model; b, establishing a treatment scheme database; and C, optimizing the treatment scheme by using a dynamic genetic algorithm, and performing simulation confirmation through the simulation model. The defects in the prior art can be overcome, and the efficiency and accuracy of governance scheme optimization are improved.

The invention belongs to the technical field of sludge remediation and treatment, and discloses an urban river sediment remediation and treatment device and method.The urban river sediment remediation and treatment device comprises a measuring ship, a towing bracket is installed at the bottom of the measuring ship, and a mounting plate is fixedly connected to the tail of the towing bracket; a plurality of slotting gears are mounted in the middle of the mounting plate, through cooperation of structures such as hook rakes, drum waist sleeves and shaft rods, the rotating hook rakes continuously fish out large stones in bottom mud to reach the surface of the drum waist sleeves with the high middle and the low two sides, meanwhile, the shaft rods generate extrusion force in reciprocating spiral grooves through round protruding blocks, and the large stones are driven by the shaft rods to rotate. The drum waist sleeve does axial reciprocating motion in the rotating process, stone is accelerated to be discharged to the two sides through slight axial vibration, and the raking depth is synchronously changed according to the adjusting depth of the towing bracket, so that the service life of the slotting gear is effectively prolonged, and the slotting gear is prevented from being abraded or deflected.

The utility model discloses a small-watershed river sediment monitoring device, belongs to the technical field of river sediment monitoring, and aims to solve the problems that an existing river sediment monitoring station is large in occupied area and inconvenient to arrange near a small-watershed river. The monitoring device comprises a sampling pipe fixing unit, a water inlet elbow pipe, a water inlet corrugated pipe, a pre-buried water passing pipe, a first water suction pump, a transition corrugated pipe, a river bank foundation pit, a monitoring box body, a weighing device, a mounting boss, a liquid pumping unit and a heating evaporation unit, after water and sediment in the collected water body sample are separated twice through the liquid pumping unit and the heating evaporation unit, the accurate sediment content is obtained to the maximum degree, the accuracy of sediment monitoring of the small-watershed river channel is improved, and the device is mainly used for monitoring the sediment of the small-watershed river channel.

The invention belongs to the technical field of river sediment interception, and particularly relates to a river sediment interception device for a riverway, which comprises a sinking frame, an interception net, a fishing mechanism and a driving mechanism, the interception net is arranged on the front side of the sinking frame, the sinking frame sinks into the riverway, and the interception net can intercept sediment in the riverway; a fishing mechanism used for fishing silt and a driving mechanism used for driving the fishing mechanism to operate are arranged in the sinking frame, the fishing mechanism comprises sliding guide rails, a sliding frame and a fishing frame, the sliding guide rails are connected to the two sides of the sinking frame in a sliding mode, and the sliding frame is connected between the two sliding guide rails in a sliding mode; the lower portion of the sliding frame is rotationally connected with a fishing frame, and the fishing frame can turn over to fish silt in a river. In the using process, if silt is accumulated in the sinking frame on the lower portion of the intercepting net, the accumulated silt can be fished up through the fishing frame, it is avoided that the silt continuously deposits on the lower portion of the intercepting net, and the effect of automatically cleaning the accumulated silt is achieved.

The present application relates to the technical field of pollution monitoring, and more particularly to a pollution monitoring method and system for river water and a storage medium, comprising: obtaining river sediment spectral data through multi-point synchronous acquisition technology, and extracting characteristic vectors using principal component analysis to determine the types of pollutants; combining hydrodynamic and molecular polarization effects, using back propagation neural networks to predict the diffusion direction of pollutants and the interface polarization intensity, and generating the distribution pattern of pollutants in sediments; obtaining the potential gradient and chemical bond amplitude characteristics of the spatial distribution of pollution sources; matching the signal attenuation rate of the spectral signal with the chemical bond strength model to determine the emission frequency of pollutants and the interface scattering effect; combining the persistence of pollution sources and the chemical bond amplitude to trace the spatial distribution, emission frequency and potential gradient of pollution sources. Through these steps, the present application realizes accurate tracing and dynamic monitoring of pollution sources, effectively improving the accuracy of pollutant detection and the scientificity of water quality management.

The application discloses a riverway sediment sampling device, relates to the technical field of riverway sediment sampling, and comprises a floating component, a collecting cylinder and a limiting component. The collecting cylinder is hingedly connected with cover plates at two ends. The cover plates are provided with lug plates. The limiting component is vertically connected to the outer wall surface of the collecting cylinder and is used for limiting the lug plates so that the cover plates are opened with the ports of the collecting cylinder. The floating component is matched with the limiting component. The buoyancy of water is used as the trigger power for closing the cover plates. The automation of the sampling process is realized. When the collecting cylinder is lowered to the predetermined water depth, the buoyancy of the floating ball is transmitted to the limiting component through the ropes. The clamping plate mechanism rotates oppositely and releases the lug plates. The cover plates are automatically closed under the action of the return springs. Manual remote triggering is not needed. The convenience and reliability of the sampling operation are remarkably improved.

The invention provides a portal crane-monitoring device platform-based online monitoring system and method for overflowing water quality and sediment characteristics of a water-turbine generator set, and the system comprises a portal crane-monitoring device platform, the portal crane-monitoring device platform is connected with a portal crane lifting device through a plug pin structure, and a monitoring device is installed at the bottom end of the portal crane lifting device. The monitoring device is internally provided with a sampling and collecting device for sampling and collecting a water body, and is also provided with an image and water sample detection device for water body detection and image detection; the portal crane-monitoring device platform is connected with a remote control terminal through an SCADA information transmission module, so that dynamic-normalized online monitoring of water quality and sediment characteristics in a drainage basin is realized, and meanwhile, monitored data is timely stored in a remote server for analysis and storage. Full-chain integration is realized from four links of a monitoring method, monitoring equipment, a monitoring position and a monitoring platform, the design of a monitoring system is completed, high-efficiency and high-precision monitoring is realized, the labor intensity is reduced, online analysis of river sediment characteristics is met, and a high intelligent level is realized.

The invention discloses a riverway bottom mud pollution diagnosis and intelligent restoration system based on AI image recognition, and belongs to the field of riverway governance, the riverway bottom mud pollution diagnosis and intelligent restoration system comprises a base, the top of the base is fixedly connected with a feeding assembly used for restoring riverway bottom mud, a floating assembly is arranged outside the bottom end of the base, and a pollution diagnosis assembly is arranged inside the base; the pollution diagnosis assembly and the telecommunication connection between the pollution diagnosis assembly and the external AI image processing terminal are arranged, so that the traditional lagging mode depending on manual sampling and laboratory analysis is thoroughly changed; underwater images are collected in real time through the camera, image data are uploaded to the AI terminal through the wireless module for intelligent recognition and analysis, the pollution type and the pollution level of bottom mud can be rapidly judged, the diagnosis efficiency is greatly improved, rapid general survey of a large-range river channel is achieved, and the diagnosis accuracy is improved. And an instant and reliable decision basis is provided for subsequent accurate repair.

The present application relates to a kind of raw water system scheduling and risk early warning method based on deep reinforcement learning, comprising the following steps: establishing the Markov game model of waterworks water intake pump station total energy consumption minimization and minimum sediment concentration problem, and the corresponding state space, action space and reward function are designed;Obtain historical operation data and hydrological data, based on the preset hydraulic model and MLP neural network, construct scheduling environment model;Through scheduling environment model and agent PPO algorithm, the deep reinforcement learning agent is trained, and based on domain randomization improves generalization performance, obtains agent strategy;Build seq2seq model, based on historical operation data, respectively on river sediment content and reservoir water supply is multi-step forecast, combined with the agent strategy obtained by training, generate risk early warning model.Compared with prior art, the present application has strong generalization performance, has the advantages such as risk early warning function.

The application provides a method for repairing polluted river sediment by electrically activated persulfate, which comprises the following steps: arranging anode and cathode electrodes in a water area, and adding persulfate at the anode electrode; in the initial operation, the anode electrode is connected to the positive pole of a power supply, and the cathode electrode is connected to the negative pole of the power supply; when the redox potential reaches a threshold value, the positive and negative poles of the power supply are switched. In the repairing process, when the anode redox potential is greater than or equal to 800 mV, the toxic intermediate product generated by the oxidation of the anode plate in the initial stage is reduced by switching the positive and negative poles of the power supply, so that the toxicity of the intermediate product is effectively reduced.

According to the injection type device for treating and repairing the river sediment, a sediment repairing agent is conveyed to an injection device through a peristaltic pump of a pumping device and a repairing agent conveying pipeline, meanwhile, a ship-shaped body provides power for a balance shaft to move forwards, the balance shaft is driven to move forwards close to the surface of the sediment, and then injection blades are driven to rotate; the in-situ fixing and repairing device is used for in-situ fixing and repairing of the bottom mud, the bottom mud repairing agent can be directly injected into the bottom mud, river and lake water does not need to be drained, disturbance to the bottom mud is small, an original ecological system is not damaged, secondary pollution is avoided, and operation is easy and convenient. The pull wire cannot be snapped in the process of dragging the injection device before and after repairing, and even if the injection device is deeply inserted into the sludge, the injection device can be easily separated from the sludge by inflating the air bag.

The application provides a river sediment heavy metal in-situ solidification remediation method, comprising the following steps: S1, detecting the content and physicochemical properties of the river sediment heavy metal; S2, designing a remediation material formula; S3, preparing and putting the remediation material; S4, mixing and stirring the sediment and the remediation material; S5, monitoring and evaluating the remediation effect; and S6, feeding back and adjusting the remediation effect. Through the fusion of multiple linear regression, curved surface fitting, self-organizing mapping and hybrid density network algorithm, the content and physicochemical property data of the sediment heavy metal are fully utilized, the remediation material formula can be accurately designed, compared with the traditional single algorithm or empirical formula design, the remediation material ratio can be more suitable for the actual pollution situation, and the utilization rate of the remediation material is improved.

The present application relates to the technical field of building materials, and particularly relates to a solid waste-based Yellow River sediment gelatinized material and a preparation method of artificial flood-prevention prepared stone. The solid waste-based Yellow River sediment gelatinized material comprises the following raw materials in parts by weight: 300-500 parts of Yellow River sediment, 80-130 parts of cinder ash, 40-80 parts of steel slag, 20-50 parts of alunite tailings, 25-55 parts of mirabilite gypsum, 0.5-1.5 parts of crack self-repairing material, and 1-3 parts of workability regulator. The artificial flood-prevention prepared stone prepared by the method has excellent mechanical properties and erosion resistance, can reduce carbon emissions and improve ecological properties, and makes the Yellow River sediment realize resource utilization.

A river sediment sand sampler based on a rigid linkage includes a sampling box. A front fish head and a rear fish head are welded to the front and rear of the sampling box, respectively. A fixed sleeve is welded to the top of the sampling box, and a limiting rod that slides within the fixed sleeve is provided. Symmetrical lifting lugs are provided on the fixed sleeve, and a pull lug is provided at the top of the limiting rod. The bottom of the sampling box has an opening, and the bottom of the sampling box is hinged to a bucket via a connecting shaft. One end of the connecting shaft is welded to a traction chain, and the other end of the traction chain is fixedly connected to the bottom of the limiting rod. The sampling box contains a triggering structure that engages with one side of the bucket and a limiting plate that engages with the other side of the bucket. This structure ensures a precise and stable triggering mechanism, preventing incomplete bucket closure or delayed closure during lifting, thus improving sampling accuracy; reducing wear rate, extending overall lifespan, and lowering operating costs; and making the triggering structure simpler and more robust, resulting in smooth and stable bucket operation, reducing the probability of failure, and facilitating maintenance.

A river channel sediment ecological dredging device, the front side of the treatment base is connected with a shovel head, the inside of the treatment base is provided with a treatment cavity, the intercepting through hole of the treatment base is communicated with the treatment cavity; a fish and shrimp protection assembly is arranged in the treatment cavity, the fish and shrimp protection assembly transfers the fish and shrimp on the front side of the treatment base to the rear of the treatment base, the power input end of the fish and shrimp protection assembly is connected with the power output device; a sludge and water separation assembly is arranged in the treatment cavity, the sludge and water separation assembly separates the sludge and river water sucked into the treatment cavity, the separated river water is discharged from the bottom of the shovel head; one end of a sludge discharge assembly is connected with the engineering ship, the other end of the sludge discharge assembly is connected with the treatment base, the sludge discharge assembly discharges the sludge separated by the sludge and water separation assembly, the power input end of the sludge discharge assembly is connected with the power output device. The present application effectively improves the river channel sediment dredging efficiency, ensures the effective transmission of power during underwater operation, effectively avoids the fish and shrimp from being involved, and improves the protection effect on the ecological environment.

The invention relates to the technical field of environment detection, in particular to a river sediment in-situ sampling detection device which comprises an outer cylinder, a sampling mechanism is mounted in the outer cylinder, a sediment inlet of a water removal mechanism is connected with a material outlet of the sampling mechanism, and the water removal mechanism is used for removing water from sediment; the conveying mechanism is arranged at the bottom mud outlet of the water removal mechanism, the conveying mechanism can convey the bottom mud subjected to water removal to the detection mechanism, and the detection mechanism detects the bottom mud subjected to water removal. The water removal mechanism is arranged, in-situ water removal can be conducted on bottom mud collected by the sampling mechanism, the bottom mud obtained after water removal is conveyed to the detection mechanism through the conveying mechanism to be detected, and therefore in-situ sampling and detection of the bottom mud are achieved.