216 results about "Shallow water area" patented technology

The invention relates to a sea area island remote sensing information change monitoring method and system, and relates to the technical field of remote sensing monitoring, and the method comprises the steps: obtaining a remote sensing image time sequence of a target sea area island, the remote sensing image time sequence comprises a plurality of remote sensing images, and each remote sensing image has an acquisition timestamp; collecting tide height information corresponding to the target sea area island at each collection timestamp, and water depth distribution information of the monitored sea area where the target sea area island is located; and performing correction processing on each remote sensing image according to the tidal height information and the water depth distribution information corresponding to each acquisition timestamp, and generating an island boundary contour change time sequence. The invention solves the problems that the traditional sea area island remote sensing monitoring adopts a single-moment image for analysis, the real coastline change and temporary boundary offset caused by tide cannot be distinguished, the boundary extraction precision is reduced due to shallow water area seabed reflection interference, the monitoring error is large, and the monitoring precision is low. The application precision requirements of sea area management, coastal zone protection and the like cannot be met.

The invention relates to a water depth estimation method of a KAN network based on self-adaption and physical constraint, and belongs to the technical field of remote sensing data processing. Grades are divided according to different water body turbidity, different KAN expert networks are adopted for different grades to learn the complex nonlinear relation between B3 and B4 wave band reflectivity and water depth, and KAN initial model parameters corresponding to different grades of water bodies are obtained through independent self-adaptive training; taking the B3 and B4 wave band reflectivity after normalization processing as input, selecting a corresponding KAN network model according to the water turbidity grade, and outputting predicted water depth; and training the KAN network by using the physical constraint loss function L, and finally extracting an interpretable mathematical inversion formula of the wave band reflectivity and the water depth after the training is completed. Through deep fusion of B3 / B4 waveband spectral characteristics of the KAN, a remote sensing technical solution with high precision, low cost and strong adaptation is provided for dynamic monitoring of the water depth of the shallow water area.

The invention is suitable for the technical field of multi-source data processing, and provides a water body adaptive extraction method based on multi-source remote sensing data fusion, and the method comprises the steps: obtaining multi-source data of a target region, constructing an improved water body index based on optical remote sensing image data, and enhancing the spectral separation degree of a deep water region and a shallow water region; constructing a scattering feature distinguishing rule set based on synthetic aperture radar image data, and separating a water body from typical interference ground features; generating a terrain gradient constraint condition based on the digital elevation model data; generating a fusion data set according to the improved water body index, the scattering feature distinguishing rule set and the terrain gradient constraint condition; dynamically segmenting the fused data set through an adaptive threshold segmentation algorithm to obtain an initial water body extraction result; and performing mixed pixel decomposition and morphological boundary optimization processing on the initial water body extraction result to generate an optimized result, and outputting a water body spatial distribution diagram, thereby effectively improving the water body extraction precision, the adaptability to complex scenes and the anti-interference capability.

The invention relates to the field of laser water depth detection, in particular to a water surface fluctuation compensation method for laser sounding, and solves the problems of insufficient precision and water surface fluctuation interference in a traditional sounding technology in an extremely shallow water area. The measured water depth is corrected through the turbidity sensor, the IMU zero offset compensation sensor and the laser displacement sensor, and the purpose of improving the measurement accuracy is achieved. According to the scheme, the stability and precision of depth sounding of the extremely shallow water area are remarkably improved, and the method has high environmental adaptability and wide application prospects.

The invention discloses a method for suppressing magnetotelluric mixed noise in a shallow water area. The method comprises the following steps: reading a noisy ocean MT time sequence; setting phase space reconstruction parameters; constructing a phase-space vector to obtain a noisy data matrix; noise priori information is obtained through noise pre-estimation; constructing an original noisy data matrix after noise whitening; performing singular value decomposition to obtain a feature vector and a feature value matrix of a data covariance matrix after noise whitening; selecting a low-order principal component after noise adjustment principal component transformation to reconstruct a denoised data matrix; recovering the denoised data matrix into a time sequence; carrying out Fourier transform to obtain an ocean MT magnetic field component amplitude spectrum, and combining to obtain an ocean MT four-component amplitude spectrum; detecting the frequency point of the pulse in the four-component amplitude spectrum; and setting all amplitudes corresponding to pulse frequency points in the four-component amplitude spectrum to be 0, and performing inverse Fourier transform to obtain a processed four-component time sequence. According to the invention, the ocean magnetotelluric signals can be better processed, and the data quality is improved.

The present invention provides a novel offshore structure, referred to as Super Shallow Water Structures (SSS), designed and manufactured for installation in shallow water depths ranging from 3.5 meters to 50 meters. The said structure is a self-floating structure that can be towed from a fabrication yard or dry dock to an offshore site and lowered into position without requiring heavy lifting vessels or barge-based operations. The structure is equipped with a unique pontoon foundation (1) that facilitates self-floating transport and lowering through controlled water or grout filling. The structure (SSS) serves as an alternative to traditional offshore structures. It also provides a viable solution for replacing jacket and pile foundations for heavy topsides structures.

To provide a spiny lobster proliferation bank that can provide habitats for all of a puerulus, a young lobster, and a lobster (adult) and can be stably installed in the sea.SOLUTION: A unit for a spiny lobster proliferation bank includes a plurality of stages of steel plates 10, 11, ... that is vertically spaced and a plurality of spaces 51, 52, 53 between the upper and lower steel plates 10, 11, the spaces being formed by arranging a plurality of wall materials 3 and oblique wall materials 3N between the upper and lower steel plates 10, 11, the spaces 51, 52, 53 having sizes differing at an upper stage and a lower stage. The oblique wall materials 3N make the spaces 51, 52, 53 become narrower as they go toward the back, which prevents natural enemies from coming from the back and makes spaces comfortable for lobsters. The spaces 51, 52, 53 are configured using the steel plates and steel materials, which as compared with the case of being made from concrete, provides higher relative density and strength enabling obtainment of a unit capable of enduring even a severe condition of a shallow installation location, where spiny lobsters can grow by moving the spaces 51, 52, 53 having the different sizes depending on their body lengths.SELECTED DRAWING: Figure 10

To solve such a problem that cultivation of seaweeds that generate blue carbon is committed to a natural environment which is very limited to shallows where sunlight reaches (=0.2% of the entire sea), the cultivation region may decrease but cannot increase because of installation of a port, tourism development such as a swimming beach, and expansion of commercial facilities, sunlight sometimes cannot sufficiently reach the cultivation region because of weather conditions and the ebb and flow of the tide, which makes the cultivation insufficient, and furthermore, an outbreak of red tides may inhibit algae from growing.SOLUTION: In a blue carbon system, a sealed wooden box is installed to each of the four corners of a wooden frame of a 12 m-sized wooden artificial island unit; a culture soil unit for cultivating algae is placed on the wooden frame; buoyancy of the four sealed wooden boxes and weight of the culture soil unit are controlled to be well balanced; and upper sides of the four sealed wooden boxes are set to be exposed from the water by approximately 30 cm while taking the water depth into account so as to provide a best growth condition of the algae.SELECTED DRAWING: Figure 1

The utility model relates to an assembled floating body construction hoisting platform system for hydroelectric power generation, which is characterized in that a plurality of air bags are arranged, top beams are supported at the tops of the air bags, the top beams are connected through top beam connecting beams to form a frame structure of a platform frame, and arc-shaped structures used for being connected with the air bags are arranged at the bottoms of the top beams. The bottom of the top beam is provided with an arc-shaped structure used for being connected with an air bag, the end of the air bag is provided with an inflation device, wood beam supporting structures are evenly distributed on the top beam connecting beam, the wood beams are installed on the platform frame through the corresponding wood beam supporting structures, and the top beam, the top beam connecting beam and the wood beams are connected into a whole to form a wood plate bracket and a mortise fixing point. A plurality of adjustable stand columns are installed on the platform frame, hoisting equipment used for hoisting operation is arranged on the platform frame, and a cantilever crane or a portal crane of a single-column and single-arm structure can be adopted. The hoisting device can be well suitable for the overwater hoisting operation in shallow water areas, and can be used for hydroelectric power generation hoisting or other adaptive occasions.

A free surface multi-wave suppression method for ocean bottom node data, relating to the technical field of seismic exploration. The method comprises: performing interpolation of upgoing wave and downgoing wave ocean bottom node data (S110); separating multiple waves according to periodic characteristics of a wave field incident angle change (S120); and using a sparse inversion method to establish a target function, and, on the basis of the target function and by means of a fast iterative shrinkage threshold, solving for an upgoing wave field that does not contain multiple waves related to a free surface (S130), so as to remove multiple waves on the free surface. According to the method, multiple waves on a free surface in an upgoing wave field of ocean bottom node data of an ultra-shallow water area can be removed, and primary wave imaging quality of seismic data is improved. Further provided is a free surface multi-wave suppression apparatus for ocean bottom node data, a computer device, and a computer program product.

The invention discloses a hydrofoil with an adjustable attack angle for an electric control type boat and a control system, relates to the technical field of attack angle control, is used for solving the hidden danger of grounding caused by insufficient underwater distance and limited lift force compensation during navigation in a shallow water area, and comprises a working condition judgment module, a backstepping fitting module, a risk grade judgment module and an attack angle execution module, the modules are in signal connection; the working condition judgment module obtains a water depth value, a draught value and a water leaving height value through a sensor, calculates a bottom gap and compares the bottom gap with a safe minimum gap, and judges shallow water working condition triggering; the backstepping fitting module calculates the actual lift force by combining the gravity, the buoyancy and the vertical acceleration of the boat body when the shallow water working condition is triggered, and fits the shallow water corrected lift force slope; the risk grade judgment module calculates the residual available lifting force and the lifting force required by lifting, and sets a risk flag bit through a dual-condition criterion; and the attack angle execution module adjusts the attack angle according to the risk flag bit to realize closed-loop control.

The invention discloses a wetland ecological restoration method combined with water ecological restoration monitoring, and relates to the technical field of ecological restoration. The method comprises the following steps: acquiring water depths, nitrogen and phosphorus concentrations, dissolved oxygen and biodiversity indexes of a deep water area, a shallow water area and a coastal zone of a wetland through a sensor network, and generating an initial data set; dividing a wetland region by adopting a K-means clustering algorithm, and constructing a classification region feature model; based on the nitrogen and phosphorus concentration and the water depth of each region, configuring plant species, simulating a water flow gallery and optimizing the pollutant removal efficiency; integrating coastal zone data, optimizing the external pollution interception efficiency by using a genetic algorithm, and obtaining an optimal matching parameter; generating a collaborative ecological restoration framework by iteratively adjusting plant parameters, and establishing a comprehensive numerical evaluation model; and a management data set is generated according to an evaluation result, and quantitative optimization of the wetland ecological restoration effect is realized. According to the method, the pollutant removal efficiency can be effectively improved, and collaborative recovery of ecological functions can be ensured.

The invention discloses a water resource information acquisition method based on a remote sensing image, which belongs to the technical field of image recognition, and specifically comprises the following steps: firstly, acquiring remote sensing image data of a target water area, and constructing a dynamic substrate spectrum template library by acquiring actually measured spectrum reflection curves of different substrate types in a water-free state; secondly, for each spatial position in the image, matching exposed substrate types of adjacent areas according to geographic coordinates, and extracting corresponding spectral features from a template library as basic reflection reference; establishing a light propagation path separation model, simulating a process that sunlight penetrates through a water layer and returns to a sensor through substrate reflection, and generating a substrate reflection contribution component in combination with basic reflection reference; and finally, deducting the contribution component from the spectral reflectivity to obtain a pure water optical response value, and outputting a water transparency parameter distribution diagram of each spatial position of the target water area according to a physical correlation model of the pure water optical response value and the water transparency. According to the invention, reliable remote sensing acquisition of shallow water transparency is realized.

The invention relates to a shallow water cross-sea long bridge mobile settlement measuring device and a measuring method thereof, and the device comprises a plurality of floating pontoons which are arranged at measurement reference points at intervals in the longitudinal bridge direction, and each floating pontoon is provided with a supporting leg for positioning the floating pontoons at the measurement reference points; the measuring instruments are fixed on the pontoons, the known elevation control points and the piers; and the controller is used for controlling the pontoons to arrive at and be positioned at the measurement datum points and sending observation instructions to the measurement instruments so as to obtain settlement observation values of the piers. The measuring instrument is fixed on each pontoon, a known elevation control point and a bridge pier, and the observation elevation of the measuring instrument at each measurement reference point is obtained by using the measuring instrument with the known elevation control point through an elevation transmission route; the measuring instrument at each measuring datum point is used for observing the differential mean elevation of the piers before and after settlement to obtain the settlement observation values of the piers, and the method has the advantages of simple structure, low construction difficulty, low construction cost, capability of being repeatedly used and the like.

This invention relates to a construction vessel for shallow water areas and its movement method. The construction vessel includes a hull, a construction structure, a first pile, a second pile, and a moving structure. The construction structure is mounted on the hull, and the first pile movably passes through the hull and inserts into the water. The moving structure includes a slider, a first driving member, and a strip groove on the hull. The slider slides into the strip groove, and the second pile movably passes through the slider and inserts into the water. The first driving member is connected to both the hull and the slider, and is used to drive the slider to move along the strip groove. Compared with the prior art, this invention enables the hull to move on water, solves the problem of difficult movement of construction vessels in shallow water areas, avoids the use of anchoring for positioning, and improves the movement efficiency and construction efficiency of construction vessels in shallow water areas.

A method and device for water column profile measurement have the following features: • the method uses a measuring arrangement with a flying drone (10), a submersible cable (20) and a measuring probe (30) for measuring physical quantities, such that one end of the submersible cable (20) is connected to the flying drone (10) and another end of the submersible cable (20) is connected to the measuring probe (30), with the steps: • Flight of the drone (10) with the immersion cable (20) and the measuring probe (30) from a base station to at least one marine measuring position, • At each of the at least one marine measurement position, the following steps are carried out: ▪ Lowering the drone (10) and the associated lowering of the measuring probe (30) into the sea while recording measurement data with the measuring probe (30), ▪ Ascent of the drone (10) and the concomitant submersion of the measuring probe (30) in the sea with optional recording of measurement data with the measuring probe (30), • Return flight of the drone (10) with the immersion cable (20) and the measuring probe (30) to the base station and placing the measuring probe (30) on the base station. The measuring probe, submersible cable, and drone are reusable. The ocean is not polluted with debris. Measurements can be taken in shallow waters.

The invention belongs to the technical field of acoustic positioning, and particularly relates to a beam-adjustable multi-beam sonar which comprises a middle adjusting rod, a flow guide head and a threaded sleeve, the threaded sleeve is arranged on the periphery of the middle adjusting rod, and the flow guide head is arranged at the tail end of one side of the middle adjusting rod. According to the invention, by arranging the displacement expansion frame, the shaft body connecting block, the fixed end connecting ring, the rack, the adjusting gear, the independent wave beam transmitter, the expansion supporting connecting rod and the driving protection cover, the first motor, the second motor and the independent wave beam transmitter are connected with an external control unit through lines. When sonar detection needs to be carried out, the independent wave beam emitters are oriented uniformly and emit detection sound waves, and then the receivers are started immediately and receive reflected sound waves. The displacement expansion frame is changed according to the current water depth or the search mode, when the displacement expansion frame is in a shallow water area, a wide-area exploration mode (umbrella-shaped opening) is adopted, and if the displacement expansion frame is in a deep water area, energy needs to be focused to improve the resolution ratio (umbrella-shaped closing).

The invention provides a parallel hydraulic interconnection damping catamaran which comprises an upper cabin, a hydraulic interconnection suspension and a floating body which are sequentially arranged from top to bottom, and the whole structure is symmetrically distributed in the front view and is trapezoidal in the left view. The hydraulic interconnection suspension forms two side waists of a trapezoid, the upper cabin body is connected with the transverse rocker arm through the hydraulic cylinder set, the front transverse rocker arm is hinged to the longitudinal rocker arm through the radial spherical plain bearing, the longitudinal rocker arm is hinged to the floating body through the radial spherical plain bearing, and the rear transverse rocker arm is directly connected with the floating body. The front hydraulic cylinder set and the rear hydraulic cylinder set stretch out and draw back to achieve pitching motion, the left hydraulic cylinder set and the right hydraulic cylinder set stretch out and draw back alternately to drive the floating bodies on the two sides to move in a staggered mode, heeling of the ship body is achieved, and therefore three-freedom-degree vibration reduction compensation of heaving, pitching and heeling is jointly completed. Through the eight-cylinder interconnected hydraulic loop design and the special connection pair layout, wave multi-degree-of-freedom impact is effectively decoupled, the seakeeping and stability of the ship are remarkably improved, and the device is suitable for special rescue scenes such as shallow water areas and complex channels.

The invention provides a river width measuring device for water conservancy projects, belonging to the technical field of river width measurement. It comprises a handheld guide, on which a measuring part is installed; the measuring part is used to measure the width of the river; a shallow water prompting part is installed on the measuring part; the shallow water prompting part is used to indicate the shallow water area; a fixed point safety part is installed on the handheld guide; the fixed point safety part is used to improve the accuracy of the positioning point; and a probe part is installed on the handheld guide. By setting a shallow water prompting part, the present invention can cooperate with the measuring part to perform rapid fixed-point measurement of the river width, which can be more suitable for shallow-shoal-like rivers with low slopes, and can facilitate staff to quickly identify the edge of the river; so as to solve the problem that the existing river width measuring equipment for water conservancy projects is not convenient for safety detection in shallow water areas, and it is not convenient for staff to accurately observe the wading area in areas with weeds and the like.

The application discloses a kind of oyster reef repair methods based on plant material construction attachment matrix, it is related to the technical field of coastal zone ecological restoration.The repair method includes the following steps: S1, selecting plant material, the stem of salt marsh plant is the plant material;S2, the plant material is cut into segments and pretreated, and an attachment matrix assembly is prepared;S3, a plurality of the attachment matrix assemblies are tied and connected to form an attachment matrix unit, the attachment matrix unit is arranged in a matrix, is vertically fixed on the surface of a bearing member, and forms a deployable matrix structure unit;S4, the matrix structure unit is laid in the target repair area, and is fixed to the base by anchoring assembly.The plant material of the application maintains structural durability during the oyster attachment period, and is completely degraded naturally in the later period;It reduces the dependence on hard artificial matrix, has a wide source of materials, is easy to construct, has remarkable repair effect, and is suitable for oyster reef repair in intertidal zone or shallow water area and other areas where natural attachment matrix is lacking.

The application provides a large caisson offshore long-distance floating towing multi-tugboat towing marshalling method, which adopts a main tugboat and four auxiliary tugboats to form a formation; the main tugboat is located at the front of the formation to pull the caisson, and the auxiliary tugboats are distributed around the caisson to control the direction and posture of the caisson through pushing or side towing; the method includes four-stage marshalling conversion: from leaving the dock to the shallow water area, the main tugboat is hoisted and towed in cooperation with 2-4 auxiliary tugboats to control the range of the caisson through side towing and pushing; from the shallow water area to the deep water area, the main tugboat is hoisted and towed in the front, one auxiliary tugboat is stably towed in the rear, and the remaining auxiliary tugboats are on standby; from the deep water area to the shallow water area, the main tugboat is hoisted and towed in cooperation with the auxiliary tugboats on both sides through mixed marshalling of side towing and pushing, and the rear auxiliary tugboat is pushed; from the shallow water area to the bridge position, the four auxiliary tugboats are converted to push the caisson on both sides, and the main tugboat is released and leaves; through the multi-tugboat stage-by-stage cooperation, the method realizes the accurate control and safe positioning of the large caisson offshore long-distance floating.

The invention discloses a water depth inversion method based on heterogeneous satellite remote sensing data fusion, and the method comprises the steps: obtaining real-time data of a target mountainous area reservoir, carrying out the preprocessing of the real-time data, and carrying out the reservoir bottom landform classification based on SAR and optical images; carrying out water depth inversion by adopting an InSAR technology to obtain shallow water area water depth information, and carrying out reservoir deep water area inversion based on spectral characteristics and deep learning to obtain deep water area water depth information; and fusing the shallow water area water depth information and the deep water area water depth information to obtain complete water depth information of the whole reservoir. The inversion method can accurately approach a real model, is effective and feasible, has significantly improved algorithm performance compared with an existing model, and is especially suitable for shallow water high-precision identification and reservoir capacity dynamic monitoring under complex terrain conditions.

The present application relates to a kind of for shallow water area bubble pulsating pressure subwave forward prediction method, belong to deep sea resource exploration and ship structure protection field, to solve the existing engineering shallow water area bubble pulsating pressure forward prediction problem.The present application inputs bubble initial condition, environmental parameter and pressure measuring point position, judges water area boundary influence, designs correction term expression, substitutes into equation and carries out time advance, calculates and considers the propagation time of physical quantity, finally based on Bernoulli equation exports pressure curve.The present application is based on kelvin impulse theory, corrects the buoyancy parameter deviation induced by the nonspherical deformation of bubble, using mirror bubble method to calculate the kelvin impulse theory solution of large-scale bubble under the influence of different water area boundary, to quickly predict the purpose of large-scale bubble jet direction underwater, provides theoretical basis and basic technical support for engineering construction.

The invention discloses an ecological restoration method for a bird habitat in a waste salt pan, which belongs to the technical field of ecological restoration and comprises the steps of arranging a shoal area, arranging a shallow water area and a light beach, arranging a circulation channel and building a concave polder embankment to control the water inlet and outlet speed of the salt pan. A shallow water area and a light beach are constructed in the waste salt pan to form a salt pan shoal habitat, and a water system network is formed in each shoal area space through a shallow ditch; the waste salt pan repaired by the method provides a rest and foraging place for waterfowls; along with the periodical change of the rising and falling tide water level of the salt pan, a sustainable waterfowl habitat for maintaining dynamic balance among benthic organisms, waterfowls and planktons is formed, and the restoration of the natural ecology of the waste salt pan and the restoration of biological diversity are accelerated; later-stage maintenance is easy, manual weeding and natural bait feeding are not needed, water level control is simple and convenient, cost is saved, and excessive funds and manpower do not need to be input.

The utility model relates to the technical field of aquatic plant planting, in particular to an aquatic plant planting device. The device comprises a planting rod, a planting unit and a driving unit are arranged on the planting rod, the planting unit comprises a planting rod, a fixed clamping jaw and a rotating clamping jaw, and the rotating clamping jaw is rotationally connected with the fixed clamping jaw through a rotating shaft; the planting unit is connected with the driving unit, the driving unit comprises a driving rod and a spring, one end of the driving rod is connected with the planting rod, and the other end is linked with the rotary clamping jaw through the spring; the spring sleeves the outer side of the driving rod and controls the rotating clamping jaw to release the aquatic plants when resetting. The device ensures consistent aquatic plant planting depth through mechanical linkage, solves the problem of low survival rate caused by uneven artificial planting depth, has the advantages of simplicity and convenience in operation, high efficiency and stable planting precision, and is suitable for large-scale aquatic plant planting in ecological restoration of shallow water areas.

The application discloses a kind of steel formwork construction auxiliary equipment and construction method, its structure includes movable net, steel formwork, movable net is set in the outer ring of steel formwork;Movable net includes net body, connecting strip, sliding block, float, slide, magnetic attraction strip, extension body, soft strip, fixed column, clamping block, rubber strip, base, connecting strip is connected to the upper and lower ends of net body, sliding block is fixed in the inner ring of slide, magnetic attraction strip is fixed as a whole to two independent movable nets, when net body moves along slide up and down left and right dynamically with float, it can form the sustained dynamic interception effect to the shallow water area part of steel formwork, the design effectively prevents water organisms and impurities from adhering to the surface of steel formwork by dynamic interception, avoid corrosion loss, while enhancing the structural stability when concrete is formed, simultaneously, the dynamic movement characteristics of net body can actively separate the adhering material during interception process, thereby significantly improving the long-term durability and construction quality of steel formwork.

The invention is a traction device for a vehicle, such as a wheel or a track, comprising one or more movable parts, referred to as drive parts, which can change position from a position enabling propulsion on the ground to a position ensuring propulsion in a fluid or on its surface. The main applications are land vehicles capable of traveling on roads as well as on uneven or muddy ground and of traveling on or in water, such as a motor vehicle, a boat capable of navigating shallow waters, a submarine, or an aircraft capable of landing on a beach or on the water.

The utility model belongs to pipeline detection technical field discloses a kind of multifunctional pipeline detection robot, the robot is made of two independent cabin bodies connected by connecting chain, and cabin body adopts light material.It has the advancing function of shallow water area gyro wheel advancing and deep water area fan driving, and video, radar, laser and sonar detection function.In shallow water area, gyro wheel is controlled by independent motor to realize flexible steering;In deep water area, robot relies on cabin body to float, and fan motor drives fan to push robot forward and turn around.Various detection devices work cooperatively, and detection data is transmitted to remote work platform in real time through cable, converted into required data type, to provide comprehensive basis for pipeline condition assessment, effectively improve the efficiency and accuracy of pipeline detection.

The utility model relates to the technical field of shallow water area sampling, in particular to a shallow water area bottom mud sampling device which comprises a sampling pipe, a connecting pipe is arranged at the left end of the sampling pipe, connecting blocks are fixed at the left ends of the sampling pipe and the connecting pipe, sampling rods are arranged in the sampling pipe and the connecting pipe, and sampling holes are formed in the sampling rods. A handle is fixed to the left side of the sampling rod at the left end, a positioning pipe is arranged on the left side of the connecting pipe, two connecting plates are fixed to the left end of the positioning pipe, a measuring disc is arranged at the right end of each connecting plate, a sampling ring is arranged at the right end of the sampling rod at the right side, and a plurality of sampling plates are fixed to the outer portion of the sampling ring. A plurality of groups of sampling baffles are also fixed in the sampling pipe; the handle rotates to drive the sampling rod to rotate, so that the sampling rod bottom connecting block is driven to rotate, the sampling pipe top connecting block is driven to rotate, the sampling ring is driven to rotate, the sampling plate is driven to rotate, the sampling plate and the sampling baffle are tightly attached, and sampling is achieved.