268 results about "Shallow water area" patented technology

The invention provides a large-scale water body underwater terrain inversion method and device and a medium, and the method comprises the steps: carrying out the partitioning of a to-be-inverted water body region, and obtaining a deep water region and a land-water conversion shallow water region; based on a spatial interpolation method, carrying out inversion on the land-water transformation shallow water area to obtain a land-water transformation shallow water area topographic image; a deepwater area water depth inversion model constructed based on the wave band reflectivity information and the underwater topographic elevation data performs inversion on the deepwater area to obtain a deepwater area underwater topographic image; and carrying out image splicing fusion on the land and water transformation shallow water region topographic image and the deep water region underwater topographic image to obtain the underwater topography of the water body to be inverted. In the face of a complex and changeable water body environment, a water body area to be inverted is divided into a deep water area and a land and water conversion shallow water area, and different and more targeted inversion methods can be adopted according to the characteristics of water bodies in different areas.

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.

An erosion coast ecological protection system comprises: ecological submerged dikes, tidal flat habitats, vegetation habitats and ecological breeding areas arranged in sequence from sea to land on the erosion coast; the ecological submerged dikes are arranged in the subtidal zone parallel to the coast, the overall structure is composed of multiple sections of submerged dikes and gates, and the length of a single section of submerged dikes is not less than 8 times the wavelength; the tidal flat habitat is connected with the ecological submerged dike and is properly decorated according to the tidal flat terrain to form a multiple habitat consisting of shallow water areas and deep water areas; the vegetation habitat area is located in the intertidal zone, and its outer edge is arranged with riprap to avoid tidal channels, the slope is about 1:2-1:3, and a vegetation belt of not less than 50m wide is planted on the land side; the ecological breeding area is provided with a plurality of breeding ponds with field-shaped channels, the top width of the channel is about 4-6m, and several rows of tamarisks are planted to form a wind-resistant buffer zone.

The invention discloses a method for generating a reservoir area river channel cross section by fusing multi-source data and encrypting step by step, and relates to the field of hydropower engineering measurement. The method comprises the steps of obtaining multi-source data of a reservoir area river channel section, and performing fusion processing on the multi-source data to obtain a point cloud set Q; laying section line segments, and determining an initial section data set A according to the laid section line segments; obtaining topographic feature points on the section line segments to form a new section data set B; obtaining a new section data set C; forming a new section data set D; converting the section data set D into a section mileage file; and drawing the mileage file into a cross section diagram, and further generating a reservoir area river channel cross section. According to the method, multi-source data are fused into point cloud data of the whole reservoir bank area, data sources comprise true color airborne laser point cloud data of the shore part, elevation point data collected by an underwater unmanned ship and elevation point data manually collected by a reservoir close to the shore and a shallow water area, and high precision and comprehensiveness of the data sources are guaranteed.

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 provides an automatic pool cleaning device, a control method thereof and a computer storage medium. The control method comprises the steps that the automatic pool cleaning device is controlled to advance in a pool according to a preset path; in the advancing process of the automatic pool cleaning device, whether the automatic pool cleaning device moves to a shallow water area or not is monitored; and under the condition that the automatic pool cleaning device moves to the shallow water area, the automatic pool cleaning device is controlled to move from the shallow water area to the deep water area. According to the method, under the condition that the automatic pool cleaning device moves to the shallow water area, the automatic pool cleaning device is controlled to smoothly move from the shallow water area to the deep water area, then the robot can normally conduct subsequent cleaning work in the deep water area, and the cleaning efficiency of the automatic pool cleaning device is improved.

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 invention provides a shallow sea water depth inversion method and system based on a multi-angle optical radiation transmission model, and relates to the technical field of remote sensing space information. The method comprises the following steps: on the basis of a water body biological optical model, constructing a shallow sea water depth inversion model in combination with a water body and water bottom optical radiation transmission process; and according to the obtained multi-angle satellite remote sensing observation data, calculating and obtaining shallow sea water depth information by using the shallow sea water depth inversion model. According to the invention, by fusing multi-angle satellite remote sensing observation data and a physical model and comprehensively considering water body absorption, scattering and bottom reflection characteristics, a high-robustness and high-precision shallow sea water depth inversion method and system are constructed. The method has adaptive capacity to a complex optical environment in a shallow water area, can realize large-range and high-precision water depth inversion, provides a new technical means for shallow water depth measurement, and has wide application prospects.

The invention discloses a shallow water area berthing component temporary positioning device and a construction method, and relates to the technical field of concrete members, the shallow water area berthing component temporary positioning device comprises a plurality of wharf foundation piles and berthing components, every two wharf foundation piles form a group, a first connecting rod is arranged between one group of wharf foundation piles, a supporting rod is arranged on one side of each wharf foundation pile, and a second connecting rod is arranged on the other side of each wharf foundation pile. A second connecting rod is arranged between the wharf foundation pile and the supporting rod. A positioning hole is formed in the berthing component, a fixing rod is arranged in the positioning hole, one end of the fixing rod abuts against the first connecting rod, and the other end of the fixing rod abuts against the supporting rod. The first connecting rod and the supporting rod are provided with a positioning mechanism. Fixing mechanisms corresponding to the fixing rods are arranged on the two sides of the berthing component, supporting is provided for hanging of the berthing component through the steel frame formed by lap joint of the supporting rods and the connecting rods, the berthing component is stably and accurately fixed to the supporting rods and the connecting rods through the positioning mechanisms and the fixing mechanisms, and follow-up construction and installation are facilitated.

The invention relates to the technical field of cross-sea channel engineering, in particular to a fixed supporting type underwater suspension tunnel with a shock absorption and isolation device, which comprises rigid pier columns, a suspension tunnel pipe body, a flexible waterproof joint, a waterproof shock isolation support, a waterproof shock absorption buffer component and a pile foundation, the steam generating device comprises a steam chamber; the floating tunnel is suitable for cross-sea traffic in shallow water areas (the water depth is within 50 m) under complex sea conditions, good stability is achieved, all components are manufactured in a modularized mode and connected through standardized connectors, construction and maintenance are convenient, the truss for supporting connection and limiting is arranged on the upper portion of the rigid pier column, excessive displacement of a floating tunnel pipe body in the horizontal direction can be limited, and the construction efficiency is improved. The floating tunnel pipe body falling accident under the extreme condition is avoided, the shock insulation supports and the vibration reduction buffering assemblies are arranged between the floating tunnel pipe body and the rigid pier columns, when disasters such as extreme waves or ocean currents or earthquakes happen, shock insulation and vibration reduction are facilitated, and the structural reliability is high.

The multi-tower partial cable-stayed bridge comprises two side main towers and an auxiliary middle tower, the two side main towers are arranged on the two sides of the auxiliary middle tower respectively, side main piers are arranged at the bottoms of the side main towers, auxiliary middle piers are arranged at the bottoms of the auxiliary middle tower, and the side main piers are connected with the auxiliary middle piers through the auxiliary middle piers. The side main tower is connected with the auxiliary middle tower through a main beam, and the side main tower and the auxiliary middle tower are respectively connected with the main beam through stay cables; and the height of the auxiliary middle tower is lower than that of the side main tower. The multi-tower partial cable-stayed bridge has the advantages that the multi-tower partial cable-stayed bridge with the unequal-height towers is formed in the mode that the small-height auxiliary middle towers and the large-height side main towers are combined, the small-foundation-size auxiliary middle piers are built in a deep water area, and the large-foundation-size side main piers are built on the shoreside or a shallow water area; the crossing capacity of the partial cable-stayed bridge is improved while the bridge construction difficulty is reduced, and the overall rigidity of the multi-tower partial cable-stayed bridge is improved by arranging the transverse anchor cables and the inclined anchor cables.

The invention belongs to the technical field of aquaculture, and particularly discloses a water area pasture breeding device for a shallow water area, which comprises a net cage, the top of the net cage is fixedly connected with a top frame, the outer edge of the bottom end of the top frame is fixedly connected with an air bag, the air bag is used for floating of the device, and the middle of the top frame is fixedly connected with a transverse frame. The transverse frame is used for providing a mounting position, a wave stabilizing mechanism is arranged outside the net cage and used for stabilizing waves in the net cage, a supporting mechanism is arranged on the outer side of the wave stabilizing mechanism and used for supporting the wave stabilizing mechanism, and a bait floating mechanism is arranged in the middle of the net cage. The wave stabilizing mechanism can prevent waves on the water surface from driving the water surface of a water area in the net cage when the waves on the water surface are large, so that fed bait can be prevented from floating to one side of the net cage along with the waves, fish damage caused by fish food grabbing is avoided, cultured aquatic products are protected, and economic losses are avoided.

A flexible flapping wing type bionic water pumping device for improving water power comprises a water pumping execution mechanism and a flow channel, the flow channel is fixed to the lower portion of a rack of the water pumping execution mechanism, and the water pumping execution mechanism comprises the rack, a linear motion module, a swing motion module, a driving module and flexible flapping wings. The linear motion module and the swing motion module are symmetrically installed on the two sides of the machine frame in the middle and can move synchronously, the driving module is installed on the upper portion of the machine frame in the middle, and the swing motion module is fixed to a linear bearing sliding base of the linear motion module so that the swing motion module can do linear reciprocating motion on a guide shaft along with the linear bearing sliding base. The flexible flapping wing is fastened with a driven shaft of the swinging motion module, and the flexible flapping wing is driven by the driven shaft to perform reciprocating swinging motion. The water body can be propelled efficiently, high-efficiency large-flow water pumping can be achieved in a shallow water area under the low-lift working condition, meanwhile, threat to overflowing organisms in the water body can be avoided, and biological friendliness is achieved.

The invention discloses a belt sand ship safety dynamic management system, and the system comprises a ship information collection module which is used for collecting ship information, including position, speed and course information; the tide change trend prediction module is used for collecting tide information of the navigation area and obtaining the tide height and the tide change trend of the area where the ship is located in combination with the ship information; and the shallow water area depth change prediction module is used for collecting the sea chart data of the navigation area, and judging the depth change of the shallow water area during low tide by combining overlay analysis of the tide height data and the current sea chart water depth data. By integrating the tide change trend prediction module, the shallow water depth analysis module and the channel safety planning module, the system can monitor tide fluctuation and shallow water depth dynamic change in real time, and provide real-time data-based safety channel planning in combination with the ship draft.

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 invention discloses a water-air fast scanner and a water bottom scanning method based on the water-air fast scanner, and relates to the field of water body ecological environment investigation. The problems that an existing underwater scanner cannot be suitable for a shallow water area with the water depth smaller than 5 m, GPS position information and a real scanning position are staggered, and the position precision of a bottom map is reduced are solved. The method comprises the following steps: determining a deployment mode of a water-air rapid scanner, and selecting a corresponding baseline length and array spacing; configuring a working mode of the camera array, and synchronizing the camera array and a GPS module clock; the water-air fast scanner records water bottom image information; extracting a video frame; calculating scanning track coordinate data of each camera; interpolation is carried out on the scanning track coordinate data, and a smooth GPS motion track is obtained; acquiring a route track of the camera according to the GPS motion track and the array spacing; and performing reconstruction processing on the route trajectory by adopting SfM to obtain a water bottom image. The method is suitable for the fields of ocean research, geological survey, underwater archaeological and the like.

The utility model relates to the technical field of full-rotation propellers, and discloses a novel shaftless electric propeller, which comprises a propelling assembly, a propeller assembly and a propeller assembly, the angle adjusting assembly is used for adjusting the vertical angle of the propelling assembly; the height adjusting assembly comprises a mounting hoop, a main sleeve rod is rotatably connected to the interior of the mounting hoop, a connecting column is slidably connected to the middle of the main sleeve rod, the propelling assembly and the angle adjusting assembly are mounted at the bottom of the connecting column, a shell is fixedly connected to the top of the main sleeve rod, and a first motor is fixedly connected to the outer side of the shell. The vertical height of the propelling assembly is changed, so that the propelling assembly is prevented from being damaged due to collision when the propeller is used in a shallow water area, the propelling assembly connected with the connecting base is driven to rotate, the power output direction of the propeller can be adjusted, the water flow movement is accelerated through the formed water flow channels, and the propeller is more convenient to use. The problem that the propelling assembly emits heat during working is solved.

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.

The utility model provides a device convenient for flexible operation and sand taking in a shallow water area of a hard covering layer, which comprises a platform detachably arranged on a cutter suction dredger, a switching rod is arranged on the platform, a force application rod and an impact hammer are arranged on one side of the switching rod and are positioned on the front side of a rotary drill bit, and the rotary drill bit is hinged with the cutter suction dredger through a supporting pipe. The supporting pipe is connected with a bearing frame through a steel cable, the bearing frame is fixedly connected with a cutter suction dredger, a winch is further arranged on the upper portion of the bearing frame and connected with a locking rod through a pull wire, the locking rod is in sliding connection with a force application rod, and a secondary impact rod and a spring are arranged on the two sides of the locking rod located in the force application rod respectively. The bottom of the secondary impact rod abuts against the impact hammer, and the spring is compressed through the locking rod so that elastic force can be transmitted to the impact hammer through the secondary impact rod. The device is ingenious in design and compact in structure, can greatly improve the convenience of construction, and has good economic benefits.

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.