647 results about "Sedimentation" patented technology

The invention discloses a rhizosphere deposited carbon flux real-time monitoring method adopting a sensor array, and relates to the technical field of soil carbon cycle monitoring, and the method comprises the steps: determining a layered sampling depth and a horizontal concentric circle partition range based on the three-dimensional distribution characteristics of a target plant root system, and mapping the layered sampling depth and the horizontal concentric circle partition range to a preset three-dimensional grid coordinate system; gas sensors and environmental parameter sensors are deployed according to root system partitions, and a multi-dimensional sensor array is constructed. Through the three-dimensional grid coordinate system and the root system density gradient model, accurate spatial mapping of rhizosphere carbon flux is realized, high matching of sensor layout and root system biomass distribution is ensured by utilizing division of vertical layering and horizontal concentric circle partition, and the gas sensor and the environmental parameter sensor are cooperatively deployed, so that the reliability of the system is improved. The device can capture instantaneous changes such as root exudate pulse and microbial respiration, generates a continuous and consistent carbon flux data set, and provides a high-resolution dynamic observation basis for researching plant-soil-microbial interaction.

The invention discloses a flocculation treatment device and method for removing high turbidity of a water sample. The method comprises the following steps: monitoring an inflow turbidity parameter in real time, continuously collecting original optical characteristic data of water through an optical sensor array, and calculating a turbidity fluctuation rate parameter after noise reduction treatment; carrying out graded rotational flow mixing treatment, forming a pressure gradient through three stages of tapered rotational flow pipes in sequence, activating an ultrasonic frequency field, and synchronously adding main and auxiliary flocculants; the method comprises the following steps: introducing a water sample into a multi-stage gradient flocculation reaction zone, and sequentially executing turbulent flow enhanced flocculation, slow stirring flocculation and pulsed electric field assisted flocculation to form a floc structure with different particle size distribution; running parameters of a sedimentation module are adjusted according to real-time effluent turbidity feedback, and the inclination angle of an inclined plate assembly and the opening degree of a mud discharging valve are dynamically adjusted; a parameter set is updated through a prediction model based on periodically collected system operation data, a closed-loop optimization control strategy is formed, the adaptability to extreme turbidity is enhanced, the solid-liquid separation efficiency is improved, the overall energy consumption is reduced, and the efficient and stable requirements of emergency treatment are met.

The invention discloses an urban road rainwater runoff stage treatment system and method, and relates to the technical field of urban rainwater pollution treatment. In order to solve the problems that an existing system is difficult to monitor multi-index water quality in real time, the pollution degree is accurately recognized, and distribution control lacks dynamics, the system is provided with a multi-source spectrum water quality monitor at the tail end of a pipe network, turbidity, COD, TOC and heavy metal concentration are monitored in real time, rainfall intensity data are accessed into a control center, the pollutant load instantaneous rate L is calculated through a weighted summation formula, and the real-time monitoring of the pollution degree is achieved. A controllable flow distribution module in the flow distribution well distributes the rainwater to an enhanced treatment unit, a biological aerated filter system or a horizontal flow sedimentation tank, wherein the enhanced treatment unit comprises a rotational flow sand setting unit, an electrochemical heavy metal degradation unit and a chemical flocculation unit. The system is mainly used for realizing quality-divided efficient treatment and resource recycling of rainwater and guaranteeing the safety of a receiving water body.

The utility model discloses a feces collection and discharge device for a pig farm in a Poyang Lake region. The feces collection and discharge device for the pig farm in the Poyang Lake region comprises a film covering collection system and a pollutant treatment efficient degradation system. The covering film collecting system comprises a primary settling zone, an intermediate settling zone and an ultimate settling zone which are arranged in sequence. The efficient degradation system for pollutant treatment adopts an S-shaped treatment mode and specifically comprises three parts, namely a head section, a middle section and a tail section. According to the excrement collecting and discharging device for the pig farm in the Poyang Lake area, an anaerobic method is adopted for removing COD and SS, the primary removal effect is determined by the anaerobic depth and time, the sediment amount in the primary sedimentation area is the largest, solid sediment can be discharged in time by arranging the sediment discharging port, the effective excrement treatment capacity of the device is guaranteed, and the economic benefit is improved. Pollutants can be promoted to be degraded layer by layer, and finally the emission standard is achieved.

The invention relates to the technical field of settlement monitoring, in particular to embedded type ground settlement monitoring equipment which comprises a settlement pipe, a magnetic ring and a displacement sensor, four sliding grooves are formed in the outer wall of the settlement pipe at equal intervals, sliding blocks are slidably connected to the inner sides of the four sliding grooves, the magnetic ring is slidably connected to the outer wall of the settlement pipe, and the sliding blocks are fixedly connected to the inner side of the magnetic ring. Through the arrangement of the conical block, the insertion rod, the limiting mechanism, the removing mechanism and other structures, in the monitoring equipment installation process, after the periphery of a sedimentation pipe is backfilled, the insertion rod on the magnetic ring is automatically extruded out and inserted into surrounding backfilled soil, then the limiting rod is pushed out of a sliding groove through the removing mechanism, and the magnetic ring can be installed conveniently. And the sliding positions of the limiting rod and the inserting rod are limited, so that the downward sliding limitation of the magnetic ring is relieved, the displacement sensor moves to the side of the magnetic ring, the magnetic ring is quickly mounted, the difficulty in positioning and fixing in the mounting process of the magnetic ring is avoided, and the mounting efficiency is improved.

The invention relates to the technical field of coastal zone renovation and repair, in particular to a siltation promotion device for coastal zone renovation and repair, which comprises a siltation promotion assembly and a caisson which are sequentially arranged from top to bottom, the siltation promotion assembly comprises a plurality of siltation promotion modules which are connected through side edges, and the top side of the siltation promotion assembly is used for being fixedly connected with a coast; each siltation promotion module comprises a frame and a plurality of anti-flow plates, the multiple anti-flow plates are sequentially arranged in the frame from top to bottom, the two ends of each anti-flow plate are rotationally connected with the two opposite sides of the frame correspondingly, and every two adjacent siltation promotion modules are rotationally connected through one side edge of the frame; a sedimentation cavity is formed in the top of the caisson, a permeable material is arranged in the sedimentation cavity, flow guide holes penetrating through the two sides are formed in the upstream face and the downstream face of the caisson correspondingly, and the bottom side of the siltation promotion module is connected with the caisson and located above the sedimentation cavity; the siltation promotion device is formed in a splicing mode, the siltation promotion device can be well suitable for complex terrains, and the anti-flow plate is arranged to effectively resist water flow impact.

The invention discloses a salt lake brine mining method and system for hydraulically gradient-driven water replenishing and ore dissolving of a sedimentation funnel, and relates to the technical field of salt lake mineral resource development, the method comprises the following steps: S1, collecting water level data of a sedimentation funnel area, calculating gradient distribution, dividing functional areas, and generating zoning parameters; s2, based on the partition parameters, a water injection well network is arranged in the gradient direction, water injection parameters are determined according to the water level difference, and a well network scheme is generated; s3, based on a well pattern scheme, injecting the proportioning solvent into an ore bed in a layered manner to form a directional seepage field, and generating solute transport data; s4, on the basis of solute transport data, enriched brine is extracted in the collection area, the concentration is monitored, and brine parameters are generated; and S5, based on the deviation between the brine parameter and the target value, calculating the regulation amount, adjusting the injection-production parameter to maintain dynamic balance, and outputting the salt lake brine with the target concentration. By regulating and controlling the hydraulic gradient, the form of the settlement funnel is stabilized, the phenomena of stratum disturbance and ground settlement are reduced, and the ecological risk is reduced.

The embodiment of the invention provides a reservoir capacity dynamic monitoring method and system based on an unmanned aerial vehicle, and the method comprises the steps: obtaining a reservoir surface feature data set through the unmanned aerial vehicle, determining the boundary of a water area, scanning the bottom of the reservoir, obtaining the underwater terrain elevation and sediment distribution data, and constructing a three-dimensional terrain model; and determining terrain and deposit change data based on the three-dimensional terrain model dynamic change data of the continuous time sequence. Sedimentation space distribution characteristics are obtained through change rate analysis, and the sediment transportation amount and the sedimentation and deposition space rule are determined in combination with the water flow speed. Key driving factors are screened through correlation analysis, a sedimentation high-risk area is determined according to the key driving factors, and the change of sediments in the area is monitored, so that the change of the reservoir capacity is mastered. The reservoir siltation can be accurately and dynamically monitored, the high-risk area and the change mode are defined, the dynamic database is constructed to update the capacity change in real time, and important technical support is provided for reservoir management and flood control and disaster reduction.

The invention relates to the technical field of underwater topographic surveying and mapping, in particular to a sea area water taking channel scanning survey method and system based on multi-beam measurement, and the method comprises the following steps: constructing a rigid support, fixing a depth finder through a three-way cable fastening device, and building a Boolean parameter model; sound velocity, tide level and original echo data are collected; performing space-time registration, coordinate conversion and filtering denoising on the data to generate corrected water depth; and constructing an irregular triangulation network by using hard boundary constraint, generating a digital elevation model, and extracting a siltation area. According to the invention, multi-beam wide sector scanning and multi-sensor attitude correction technologies are fused, a limited water area full-coverage measurement system is constructed, and the problems of terrain blind areas and detail loss are solved. A boundary constraint reconstruction algorithm is utilized to realize closed-loop processing from coordinate reference unification to micro-landform restoration, the accuracy of channel bottom pit capture and edge topography expression is improved, and data support is provided for sedimentation analysis.

The invention belongs to the field of mariculture, and particularly relates to an oyster-sea urchin-undaria pinnatifida three-dimensional ecological breeding method suitable for a silt seabed. The method comprises the following steps: (1) construction of an oyster reef: hanging oysters in a silt sea area, and putting the cultured oysters to the seabed to form the oyster reef; (2) culturing undaria pinnatifida: culturing undaria pinnatifida above the oyster reef by adopting a buoyant raft; (3) putting sea urchin seedlings: putting the sea urchin seedlings by using the natural pore structure of the oyster reef as a sea urchin inhabiting place; (4) settlement feeding management: the cultured undaria pinnatifida is dropped to a sea urchin inhabiting area on the sea bottom to serve as sea urchin bait. Compared with a traditional single culture mode, the utilization rate of the culture space is increased by 3.2 times, the bait cost is reduced by 65%, the nitrogen and phosphorus load of a water body is reduced by 40%, meanwhile, the purposes that the growth speed of sea urchins is high, the survival rate is increased, the content of organic matter in sediments in an oyster area is reduced, and fresh undaria pinnatifida is efficiently utilized are achieved, and remarkable economic benefits and ecological benefits are achieved.

The invention relates to the technical field of atmospheric pollution prevention and control, in particular to a waste gas treatment system for urban ecological environment, which comprises a pressure difference sensing module, a settlement triggering module, a frequency spectrum analysis module and an interface execution module. According to the method, the airflow velocity difference and the vertical pressure gradient are monitored in real time, the deflection angle of the wind field guide plate is dynamically adjusted by adopting a multi-source data calibration mechanism, and liquid film disturbance is triggered in combination with particle concentration distribution data, so that the particle sedimentation efficiency is effectively improved; resonator amplitude parameters are accurately controlled based on gas-liquid interface vibration spectrum feature extraction and shear force data fusion analysis, liquid film dynamic stability optimization is achieved, a micro-vortex enhancement instruction is generated by feeding back liquid film contact time data in real time, a closed-loop regulation and control mechanism is formed, gaseous pollutant absorption efficiency and reaction uniformity are synchronously enhanced, and the stability of the liquid film is improved. The pollutant removal efficiency stability is maintained under complex working conditions, and the system energy consumption and the secondary pollution risk are reduced.

Disclosed is a method for regulating confluence of tributaries with a large drop difference and a large angle into a trunk canal. The method includes: banking up a reservoir at an upstream end of a tributary river, and widening a water surface, such that uniform distribution of water flows is completed; then conducting scouring and energy dissipation to reduce a flow velocity and kinetic energy of the water flows; then conducting flow-slowing sedimentation, such that sediment is deposited on one side of the tributary river connected to a downstream side of a trunk stream; and then conducting flow diversion at one side of the tributary river connected to an upstream side of the trunk stream, such that an included angle of confluence of tributary river water into the trunk stream is reduced.

The invention discloses a cascade control method and system for the alum adding process of a waterworks. The cascade control method comprises the steps that preprocessed operation data of the waterworks are obtained; according to the preprocessed operation data, on the basis of a pre-trained LSTM-Transformer prediction model, an alum adding amount prediction value, an effluent turbidity prediction value and a sedimentation velocity prediction value at the current moment are obtained; segmenting the alumen ustum image based on an SAM algorithm, extracting features by adopting OpenCV, and calculating a settling velocity; based on feed-forward-feedback compound control, the feed-forward control adjusts the alum adding amount in time by monitoring the change of the quality of raw water, a main loop of cascade control predicts the water turbidity through MPC to calculate the optimal set value of the settling velocity, an auxiliary loop calculates the alum adding amount through the settling velocity, the feed-forward control and cascade control are subjected to decentralized summation, and the alum adding amount is calculated according to the optimal set value of the settling velocity. And calculating the final addition amount of the alum. According to the invention, the dosage of alum can be regulated and controlled more accurately.

The invention relates to the technical field of rotational flow desilting devices, and particularly discloses a rotational flow desilting device for hydraulic engineering, which comprises a rotational flow desilting cylinder, a rotational flow assembly, a sand-water separation assembly, a conveying assembly and a control management unit, a discharging pipe is fixedly connected to the bottom of the rotational flow desilting cylinder, a control valve is fixedly connected to the interior of the discharging pipe, an electric valve is fixedly connected to the interior of the water inlet pipe, and the control management unit is used for monitoring and analyzing the running state of the rotational flow desilting cylinder in real time. According to the invention, through the arrangement of the control management unit, the traditional extensive mode depending on artificial experience judgment can be changed, so that the equipment operation information can be obtained more comprehensively, timely and accurately. Based on the data, different working conditions can be accurately identified, a basis is provided for parameter optimization, and the problem that traditional fixed parameter control cannot adapt to sewage characteristic changes is solved.

The invention discloses a lake self-settling layered water sampling device and method, and belongs to the technical field of water quality monitoring. The device comprises a bearing table floating on the water surface, a main control box is arranged in the middle of the bearing table, the bottom of the main control box is connected with a rope-controlled lifting assembly, and the rope-controlled lifting assembly is connected with a self-settling water sampling assembly through a pull rope; the rope-controlled lifting assembly comprises an adjustable-speed motor, a rope winding roller and a depth detection unit, the self-settling water sampling assembly comprises a multi-cavity water sampling barrel and a counterweight cabin, and the main control module coordinates all the assemblies to realize stratified sampling. The invention further discloses a lake self-settling layering water sampling method. The device can accurately obtain water samples in different depths of lakes, and is suitable for scenes of lake ecological monitoring, water quality analysis and the like.

The invention belongs to the field of marine geology, and particularly discloses an inversion method and application of seabed deposition rate and formation porosity distribution. The method comprises the following steps: obtaining a possible distribution range of the stratum porosity n changing along with the depth z in a to-be-researched region; obtaining the porosity of the surface sediment sample; according to the distribution range and the porosity of the surface sediment, assuming m possible change relations of the stratum porosity along with the depth at the position where research is planned to be carried out; calculating a corresponding average mass deposition rate Rsi for each assumed relationship that the porosity of the stratum changes along with the depth, and then simulating the distribution condition of the porosity of the seabed stratum under the deposition rate Rsi in numerical software; and comparing the formation porosity obtained by simulation under each Rsi condition with the corresponding assumed formation porosity distribution along with the depth, and if the two are consistent, determining that the formation porosity distribution along with the depth obtained by simulation is the actual formation porosity distribution at the position. The method is low in cost, convenient, fast and convenient to popularize.

The precise desanding device comprises a plurality of vertical supporting pieces, rotational flow plates which are evenly spaced up and down are installed on the supporting pieces, each rotational flow plate is of a funnel-shaped structure, a circular discharging opening is formed in the middle of each rotational flow plate, and a sand collecting box is further arranged at the lowermost end of each discharging opening; the cyclone separator further comprises a feeding cylinder, a feeding port of the feeding cylinder is higher than the cyclone plate on the uppermost layer, feeding pipes corresponding to all the cyclone plates in position are arranged in the feeding cylinder, the feeding pipes are horizontally arranged and correspondingly communicated with the cyclone plates, and the feeding pipes and the cyclone plates are arranged in the tangential direction. The double functions of rotational flow desanding and sedimentation desanding can be achieved, rotational flow desanding is conducted through rotational flow formed on a rotational flow plate by the impact force of sewage, sedimentation desanding enables an area on the rotational flow plate to be a sedimentation area through an arranged lifting mechanism and an arranged baffle, sedimentation desanding is achieved, the structural arrangement is reasonable, and operation is convenient. And dual functions can be realized.

The invention discloses a radial clearance dynamic sensing and mud-effect-preventing grouting system which comprises a shield body, a cutterhead rotationally connected to the front end of the shield body through a rotating mechanism, a displacement sensor, a grouting pipe and a slurry feeding part. A plurality of radial grouting holes are formed in the outer wall of the front end of the shield body; a plurality of displacement sensors are fixed on the periphery of the cutter head; the grouting pipe comprises an outer pipe and an inner pipe; one end of the outer pipe is rotatably connected to the middle of the shield body, and the other end extends along the inner wall; the inner pipe is coaxially and slidably connected to an inner cavity of the outer pipe, the discharging end of the inner pipe slidably penetrates through the radial grouting hole, and the feeding end of the inner pipe communicates with the slurry feeding part through a connecting pipe. The displacement sensor is in communication connection with the slurry feeding part. The multiple sensors are used for sensing the gaps among the cutter head, the shield body and the soil body, grouting is conducted in cooperation with the slurry feeding part and the grouting pipe so as to compensate the gaps, stratum sedimentation can be effectively reduced, accurate grouting can be conducted on the radial grouting holes in different positions through rotation of the outer pipe, the grouting efficiency is higher, and the grouting opportunity is better mastered.

The utility model discloses a vertical magnetic cyclone precipitation combined device which comprises a secondary precipitation tank and a cyclone separator arranged in the secondary precipitation tank, the upper part of the cyclone separator is a cylindrical barrel, the lower part of the cyclone separator is of a conical structure, and an underflow outlet is formed in the bottom of the conical structure; a rotary magnetic system capable of generating spiral downward magnetic field force is arranged outside the cylindrical barrel; the inner wall of the cylindrical barrel is provided with a spiral magnetic conductive piece used for magnetism gathering and current stabilizing. A central overflow barrel is mounted in the cylindrical barrel, and an overflow discharge hole communicated with the secondary precipitation tank is formed in the top of the central overflow barrel; the side surface of the cylindrical barrel is connected with a tangential mud inlet pipe which is connected with a water inlet; a water outlet is formed in the top of the secondary precipitation tank. The device can be used for recovering a magnetic medium in magnetic coagulating sedimentation or a magnetic biofilm carrier in a magnetic biochemical system. The device has the characteristics of reasonable structural design, low energy consumption and wide application range, and is high in separation and recovery efficiency of the magnetic medium and the magnetic biofilm carrier.

This invention discloses an air-lift cyclone sand separator, comprising a sedimentation tank and an air-lift device. The sedimentation tank has a sand-collecting hopper at its lower end, and a hollow shaft extending vertically is placed inside the sedimentation tank. A paddle is fixed to the lower end of the hollow shaft at the upper opening of the sand-collecting hopper. A driving device is fixed to the upper end of the sedimentation tank and connected to the upper end of the hollow shaft. The air-lift device includes an air-lift tank, an air-lift pipe, an air-purge pipe, and a sand-discharge pipe. The air-lift tank is housed within and communicates with the sand-collecting hopper. The air-lift pipe passes through the hollow shaft and communicates with the air-lift tank. The air-purge pipe passes through the hollow shaft and communicates with the sand-collecting hopper. The sand-discharge pipe passes through the hollow shaft and communicates with the air-lift tank. The paddle accelerates the rotation speed of the water flow in the sedimentation tank, allowing the sand to settle better. The settled sand is concentrated in the sand-discharge hopper. The air-lift pipe drives the water flow through the air-lift tank and into the sand-discharge pipe. The air-purge pipe disperses the sand in the sand-collecting hopper, allowing the dispersed sand to enter the sand-discharge pipe with the water flow, resulting in good sand removal efficiency.

The invention relates to the technical field of offshore wind power foundation protection, in particular to a dynamic umbrella disc induced deposition device. The dynamic umbrella disc induced deposition device comprises an umbrella disc support fixedly connected with an offshore wind turbine pile foundation. The umbrella disc induction assembly comprises a rotary supporting structure installed in the umbrella disc support and a plurality of flexible blades connected and arranged in the horizontal circumferential direction of the rotary supporting structure, and the flexible blades are located at the bottom of the umbrella disc support and extend in the radial direction expanding outwards to form an umbrella disc-shaped structure; the surface of each flexible blade is provided with a sand guiding groove, and the guiding-out direction of the sand guiding groove faces the sand washing pit area below the sand guiding groove. Therefore, the technical problems that an existing anti-scouring structure lacks dynamic protection capacity and automatic repairing capacity for the scouring pit, regular maintenance and manual repairing are needed, the repairing period is long, potential safety hazards exist, and clogging is likely to be caused by solid protection are solved.

The invention provides a method of a deep-sea sediment particle sedimentation rate measuring device based on image processing. The method is used for accurately measuring terminal sedimentation velocities of non-spherical sediment particles with different particle sizes in a simulated deep-sea environment. A particle sedimentation track is dynamically captured through a high-precision image processing technology, and accurate measurement of the non-spherical particle sedimentation rate is realized by dynamically capturing the particle sedimentation track and combining morphological parameter correction and unsteady differential equation verification. According to the method, the limitation of the traditional spherical hypothesis is broken through, errors caused by form complexity are remarkably reduced, and high-reliability data support is provided for environment influence assessment of deep-sea mining activities.

The invention discloses a method and system for predicting the scouring trend of a full-hall long-piled wharf, and belongs to the field of port engineering monitoring. The method comprises the following steps: firstly, constructing an embedded ultrasonic array monitoring system, arranging probes according to regions to realize accurate deployment and control, and synchronously acquiring acoustic data and environmental parameters; noise reduction, inversion and fusion processing are carried out on the data, and normal deposition fluctuation and abnormal scouring events are distinguished by combining shallow water acoustic modeling and a scouring mechanism recognition algorithm; and finally, predicting the current siltation state through an improved DWMA model, predicting the scouring trend by means of an improved LSTM physical hybrid model, and realizing risk visualization based on a grading early warning mechanism. The system can adapt to the dense pile foundation environment of the full-space high-pile wharf, effectively solves the problems of large blind area and high error in traditional monitoring, remarkably improves the monitoring precision and early warning timeliness, and provides powerful support for safe operation and maintenance of the wharf.

The utility model discloses a flow regime adjusting device for heavy sediment, which belongs to the technical field of building material stirring, and comprises a tank body and a tank cover arranged at the top of the tank body, a barrel body with a closed top end and an open bottom end is arranged on the inner side of the tank body, and a plurality of flow regime adjusting devices are arranged on the inner side of the barrel body. A feeding port and a discharging port are formed in the side wall of the bottom end and the side wall of the top end of the barrel respectively, a driving motor is installed on the upper surface of the tank cover, and the power output end of the driving motor is in transmission connection with a shaft rod extending to the inner side of the barrel. Meanwhile, small bubbles are formed in the liquid under the cavitation action of ultrasonic waves, and the bubbles expand and contract under the action of sound waves and finally collapse severely under high pressure to generate strong shearing force and shock waves, so that the materials are effectively mixed.

The invention provides a grit chamber, and belongs to the technical field of sewage treatment.The grit chamber comprises a chamber body and at least one grit setting assembly, the grit setting assembly is arranged in the middle of the chamber body, a plurality of grit setting channels are formed in the grit setting assembly, and the grit setting channels are obliquely arranged. The settling area is divided into multiple layers of shallow layer units by the multiple sand settling channels in the sand settling assembly, the effective settling area is greatly increased, the particle settling distance is shortened, and therefore the settling speed is increased, sand can be removed only by settling for a very short vertical distance, the fine sand removing capacity of the sand settling tank is improved, and the sand settling efficiency is improved. And the particle size of the removed object in the grit chamber is reduced to be less than 200 mu m.

The invention relates to the technical field of shield construction, in particular to a shield muck fine-grained soil content real-time detection system and deduction method based on multi-parameter fusion, and the system comprises a multi-parameter sensor unit, a data acquisition and transmission unit, a data processing and analysis unit and a display unit. According to the system, the content of fine-grained soil in muddy water separated from the muck is rapidly detected by using an intelligent densimeter after the muddy water is precipitated, a correction algorithm based on a data difference rule obtained by an indoor test is introduced, fine-grained soil content data detected by the intelligent densimeter is corrected, and a multi-parameter fusion algorithm is applied to determine the content of the fine-grained soil in the muddy water. Various processed shield muck data are comprehensively analyzed, rapid detection and analysis of fine-grained soil component changes in the shield muck are achieved, the problems that a traditional densimeter method is long in time consumption, complex in operation and poor in adaptability are solved through the system, real-time monitoring of the fine-grained soil content is achieved through the detection system, and the detection accuracy of the fine-grained soil component changes in the shield muck is improved. And a basis is provided for resource utilization of the muck.

The invention discloses a real-time monitoring and analyzing method and system for underwater settlement deformation, and belongs to the technical field of marine surveying and mapping and deformation monitoring. The method comprises the following steps: calculating wave height, wave period and wave direction elements of waves through a water surface fluctuation inversion model; carrying out denoising processing on the obtained water depth data; a gyroscope and a GNSS buoy are used for dynamic wave measurement, and sea level and wave information is separated through low-pass filtering according to the frequency spectrum characteristic difference of the sea level and waves so as to correct the attitude of the buoy; the buoy measurement data and the water depth data collected by the pressure sensor are synchronized, the water surface height right above the measurement pile is calculated in combination with a water surface fluctuation inversion model, and the real-time elevation of the water bottom is obtained; and according to the water bottom real-time elevation and the water bottom settlement grade division standard, triggering early warning of a preset grade through the data cloud platform. According to the invention, real-time monitoring of underwater settlement deformation is realized, the monitoring period is shortened, the monitoring timeliness is improved, and the underwater settlement risk is found in time.

The invention provides a drainage basin sediment prediction method, which comprises the following steps of: sorting various kinds of collected basic data of a target drainage basin into a grid form, carrying out unified space registration, and dividing the basic data based on a small drainage basin boundary serving as a sediment prediction space unit; for each small watershed, respectively predicting gravitational erosion, debris flow erosion, channel erosion and slope erosion to obtain future spatial and temporal distribution of various erosion amounts and the total erosion amount in the target watershed; for the four types of erosion, the future sediment yield and deposition rate of the small watershed scale are calculated respectively; and on the basis of the future sediment production, the small watershed suspended load sediment transport amount in the main river water system is calculated section by section according to the upstream and downstream relation of the convergence river position of each small watershed in the target watershed, and distribution of the suspended load sediment transport amount in the flowing direction of the main river water system is predicted in combination with sand digging, reservoir sedimentation and the input amount and the output amount of the suspended load in the river reach. The method can predict the sediment space-time distribution in the basin erosion and basin sand-producing river sediment transportation multi-physical process.

The utility model relates to a bucket type sedimentation tank, including barrel, mud-water separation plate, water inlet pipe, deslagging pipe and water outlet pipe, the mud-water separation plate is bucket-shaped and has a first big mouth end and a first small mouth end, a plurality of mud-water separation plates are arranged in the barrel at intervals along the first direction to form a mud-water separation zone, the first big mouth end is spaced apart from the inner wall surface of the barrel, and the first small mouth end is spaced apart from the inner wall surface of the barrel. The water inlet pipe comprises a connecting section and a water distribution section which are connected, the connecting section is arranged on the barrel, the water distribution section is arranged in the first small opening ends of the mud-water separation plates in a penetrating mode, the water distribution section faces the end of the barrel, and a plurality of water distribution openings are formed in the water distribution section at intervals and located in the mud-water separation area; and at least one water distribution opening is correspondingly formed between every two adjacent mud-water separation plates. According to the bucket type sedimentation tank disclosed by the utility model, mud-water separation is realized by adopting central multi-point water feeding and bucket type sedimentation, so that the uniform water distribution capability is improved, the disturbance to a sedimentation area is reduced, the mud-water separation effect is improved, and the problem that a mud-water separation system in the related technology occupies a large area is solved.

The invention relates to the technical field of sediment prediction, in particular to a method for predicting sediment deposition in a channel based on a hydrodynamic model. Comprising the following steps: correcting the critical start-up flow velocity of the sediment according to the biomass, metabolic rate and biological membrane thickness of a microbial community to obtain a corrected critical start-up flow velocity; on the basis of the corrected critical starting flow velocity, the actual suspended sediment concentration in the navigation channel is calculated in combination with the turbulence intensity, the propagation distance and the ship draught depth of ship wake flow; according to the suspended sediment concentration, the sediment deposition amount in the channel is calculated by combining the cementation strength, the water content and the organic matter decomposition rate of the sediment on the surface layer of the riverbed. According to the method, ecological and navigation related influence factors can be comprehensively considered, and the prediction accuracy in a complex scene is improved.