66 results about "Shoal" patented technology

The invention discloses a test pool for suppressing low-frequency oscillation. The test pool comprises a pool main body, a wave maker and a wave absorbing beach, the wave maker is arranged in the pool main body and is used for making waves in the pool main body; the pool main body comprises a shoal area; the wave absorbing beach is placed in the shoal area and right faces the wave maker. The wave absorbing beach is of a non-solid structure with pores; a solid back plate is arranged on one side, back to the wave maker, of the wave absorbing beach; the solid back plate covers the side surface of the wave absorbing beach; a lifting plate is arranged at the bottom of the pool body; the placing position of the wave absorbing beach can be changed in the direction close to or away from the wave maker, so that the distance between the wave maker and the wave absorbing beach is changed; the lifting plate can ascend and descend to change the depth of the pool body. In the scheme, the solid back plate on the back side of the wave absorbing beach can play a role in blocking waves, so that the length of the pool main body can be adjusted by moving the position of the wave absorbing beach, the natural oscillation period of the pool main body is further adjusted, and the interference of the natural oscillation period of the pool on a test is reduced.

The invention discloses a shoal elevator suitable for grouting spiral anchor installation and a using method thereof. A spiral anchor fixed to the bottom of an anchoring base is screwed into an anchoring seabed, so that the anchoring base is fixed to a designated installation site, and shoal elevator installation is completed. When seabed soil is loosened, the rotary piling system starts to work, a sensor is arranged at the tip end of the grouting spiral anchor, and when the tip end touches seabed soil, an engineering ship can pressurize cement grout to the spiral anchor through a grouting pipe. And when the grouting screw anchor reaches the designed burial depth, the rotary piling system is disconnected from the grouting screw anchor, the fixed screw anchor at the bottom of the anchoring base is screwed out of the anchoring seabed, and the shoal elevator is pulled out of the seabed to be reused. According to the invention, the anchoring base can accurately reach a preset mounting site, and the deviation of the spiral anchor is reduced; it is ensured that the grouting spiral anchor reaches the sufficient penetration depth, and sufficient uplift bearing capacity is provided; the device is high in flexibility and suitable for shoal foundations of different oceans.

The invention discloses an intelligent prediction method for river beach foundation settlement, and relates to the technical field of crossing of geotechnical engineering and artificial intelligence. During operation of a system, foundation state information is collected through multi-source monitoring equipment, a three-dimensional dynamic environment state space is constructed, and a prediction model is established based on a hybrid neural network; spatial and temporal features are extracted in combination with a bidirectional long-short-term memory network and a graph neural network, and prediction precision is optimized by adopting a multi-objective loss function and an adaptive learning mechanism. And meanwhile, a multi-region collaborative prediction and risk reconciliation mechanism is introduced, so that settlement trend coordination and safe avoidance are realized. According to the method, the foundation settlement behavior can be predicted in real time, the prediction strategy is dynamically adjusted, the prediction accuracy and engineering safety in a complex geological environment are remarkably improved, and an efficient solution is provided for river shoal alluvial layer foundation settlement.

The invention discloses a coast vegetation community zoning planting optimization design method, which comprises the following steps of: selecting suitable high trees and low trees according to the design water level and topographic features of a coast region in combination with coast vegetation suitable conditions; according to the shoal width, the zoning width of a coast vegetation community is determined, wherein the zoning width comprises the width of a high tree planting area and the width of a low tree planting area; according to the coast vegetation community planting width and a wave dissipation formula, the wave height at the embankment foot is calculated, and the width of the grass planting belt is determined through a wave climbing calculation formula. The problem of water immersion of extreme waves in the storm surge period to a city behind the dike is solved.

This invention provides a method for characterizing sedimentary microfacies distribution based on comprehensive geological and seismic analysis. By studying the sedimentary environment and surrounding tectonic background of the entire block, this invention calculates the cumulative percentage of channel and shoal body types based on sedimentary microfacies and grain size analysis. Based on a comprehensive analysis of the lithofacies of drill cores and corresponding well logging curves and seismic response characteristics, it establishes a comprehensive response model of the main sedimentary facies-well logging facies of the target stratigraphic group in the study area. Furthermore, based on the fusion of seismic attributes, it characterizes sand bodies in seismic profiles. By integrating the sand body characterization results, the comprehensive response model of sedimentary facies-well logging facies, and the sedimentary microfacies types, a method for characterizing sedimentary microfacies distribution in tight sandstone reservoirs using comprehensive seismic and geological analysis is established.

The invention relates to the technical field of hydraulic engineering image processing, in particular to a hydraulic engineering digital twinning detection device combined with geological data, which comprises a positioning plate, a servo motor and a reinforcing unit are fixedly arranged on the positioning plate, and the reinforcing unit comprises a threaded rod rotationally arranged on the positioning plate. The threaded rod is in threaded connection with a sliding block, a supporting plate is fixedly arranged on the peripheral face of the sliding block, and through a servo motor and the threaded rod which are arranged on the positioning plate, when the device needs to be placed in a riverbed shoal area, a worker can drive the two sliding blocks to move oppositely at the same time by adjusting rotation of the threaded rod; the moving sliding block can drive the other sliding blocks to unfold through the connecting plate, so that the distribution range of each sliding block is expanded, at the moment, the positioning column is inserted into the soil through the sliding block, the stability of the fixing unit can be effectively improved, and image data surveyed by the surveying device body is more accurate.

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 provides a dredging device for treating sewage in a river basin water environment, which comprises a mobile vehicle body, a suction pipe and a moving mechanism. The moving mechanism comprises a walking track, a rotating plate, a mounting plate, a containing box, a first electric push rod, a flexible sleeve, a second electric push rod, a sealing plate, a magnetorheological fluid, an electromagnetic coil and a main control unit. The mobile vehicle body moves on a shoal to perform dredging. If the shoal is relatively soft, the flexible sleeve is abutted against the top surface of the adjusting groove by the first electric push rod, the sealing plate is lifted by the second electric push rod, the magnetorheological fluid in the flexible sleeve is extruded, the magnetorheological fluid can push the flexible sleeve to deform outward, the top surface area of the flexible sleeve is increased, the electromagnetic coil is electrified, under the action of the magnetic field, the magnetorheological fluid becomes solid, the flexible sleeve can remain in a fixed form, finally, the flexible sleeve is transferred downward and contacts the shoal surface, the contact area is increased, the stability of the mobile vehicle body is ensured, the silt is sucked, and the water environment ecology is repaired.

The application discloses a test pool for inhibiting low-frequency oscillation, which comprises a pool main body, a wave maker and a wave absorbing beach. The wave maker is arranged in the pool main body and is used for generating waves in the pool main body. The pool main body comprises a shoal area. The wave absorbing beach is arranged in the shoal area and faces the wave maker. The wave absorbing beach is a non-solid structure with pores. A solid back plate is arranged on the side of the wave absorbing beach which is opposite to the wave maker. The solid back plate covers the side of the wave absorbing beach. A lifting plate is arranged at the bottom of the pool main body. The wave absorbing beach can change the placement position in the direction of approaching or moving away from the wave maker, so as to change the distance from the wave maker to the wave absorbing beach. The lifting plate can be lifted to change the depth of the pool main body. In the scheme, the solid back plate on the back side of the wave absorbing beach can block the waves, so that the length of the pool main body can be adjusted by moving the position of the wave absorbing beach, and then the inherent oscillation period of the pool main body is adjusted, and the interference of the inherent oscillation period of the pool on the test is reduced.

The utility model discloses a detachable device for expanding the lower part of the fish maw of a lead fish for hydrological survey, which is characterized in that two ends of each hoop extend outwards to form two extension parts; a threaded hole is longitudinally formed in each extension part; the plurality of bolt pairs are correspondingly mounted in the threaded holes of the two hoops, and the two hoops are detachably connected; wherein the outer wall of one hoop is further provided with the expansion nut, and the edge of the other hoop is provided with a groove. Through the application of the detachable expansion device for the lower part of the fish maw of the lead fish for hydrological survey, the detachable expansion device adopts the structural design of two hoops, is simple and flexible, can be flexibly detached at any time according to a specific scene of a hydrological implementation site, has the characteristics of convenience in installation, firmness and reliability, and particularly has the characteristics of offshore, offshore, offshore, offshore, offshore, offshore, offshore and offshore environments. The scene that sampling equipment is frequently replaced during hydrological survey shoal sampling improves the detachable flexibility of the device.

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 invention discloses a ship navigation collision avoidance method and system based on image fusion and dynamic risk prediction, and the method comprises the following steps: collecting and classifying image samples of reefs, shoals and shipwreck structures, and processing the classified reefs, shoals and shipwreck structures; taking the processed rocks, shoals and shipwreck structures as a training set and a test set; constructing a GoogLeNet deep learning structure, and training the GoogLeNet deep learning structure by using the training set to obtain a trained GoogLeNet deep learning structure; the trained GoogLeNet deep learning structure is used to carry out classification identification on the navigation obstructing structure in the navigation process; according to the method, the convolutional neural network is used for identifying the structures such as rocks, shoals and sunken ships, the identification task can be effectively completed, the identification effect is good, ship collision is avoided, and the danger in the sailing process is further reduced.

The invention relates to the technical field of piling equipment, in particular to an automatic deviation rectifying cylindrical pile drilling device which comprises a drilling mechanism and a deviation rectifying mechanism, and the drilling mechanism works cooperatively through a vibratory hammer, an outer pile casing, a rotary power head, a spiral drilling cylinder and an inner pile casing. Vibration pressing, rotary drilling, soil and stone conveying and hole wall supporting are synchronously completed at a time, the hole forming efficiency is high, and the device is particularly suitable for tidal operation windows of coastal mud flats and shoals. The inner and outer pile casing structure of the device can effectively prevent the hole wall of the soft soil layer from collapsing, a hollow pile body is formed, and concrete is saved while the bearing strength is guaranteed; the deviation rectifying mechanism applies flexible return force through an outer spherical bearing seat, a buffering deviation rectifying sleeve, a corrugated pipe and other assemblies when the outer protective cylinder deflects, automatic and stable deviation rectifying is achieved under the state that drilling is not interrupted, and the perpendicularity of formed holes in soft and uneven foundations is guaranteed.

The invention discloses a method for determining the dredging opportunity of an upstream shoal of the Yangtze River, a terminal and a medium. The method comprises the following steps: acquiring historical dredging data of the upstream shoal of the Yangtze River; a three-dimensional water flow mathematical model control equation is established, a Van-Rijn sediment model is adopted to calculate the gravel bed load sediment transport rate, and a riverbed evolution model is obtained through visual solving; performing water flow motion characteristic verification on the obtained riverbed evolution model; carrying out dredging opportunity influence factor analysis, and carrying out water flow and siltation amount calculation by utilizing the verified riverbed evolution model; and constructing a dredging opportunity calculation model based on the time length required for dredging, the time length required from the current to dredging completion, and the time length required from the current to dredging starting, and calculating by using the dredging opportunity calculation model to obtain the optimal dredging opportunity of the dredging area. The dredging opportunity can be accurately calculated, the dredging construction efficiency is improved, and it is ensured that a channel is safe and unblocked.

The invention relates to the technical field of water conservancy projects, and discloses an ecological restoration method and system for a three-side light river channel. The method comprises the following steps: breaking a hardened layer in a layered manner to retain a bottom layer, and laying a microbial preparation-containing water-permeable substrate layer; a deep pool and shoal microtopography is constructed through the roughness coefficient, and ecological steps and honeycomb-shaped grooves are arranged; dividing functional zones, configuring hydrological regulation and control devices, and establishing an artificial wetland matrix; various vegetation is planted in a layered manner according to water depth gradient, and a three-dimensional vegetation community structure is constructed by slowly releasing a regulator. According to the method, the problem that systematic technology integration and precise regulation and control means are lacked in ecological restoration of the three-side light river channel is solved.

The utility model discloses a water area environment detection support convenient to adjust, which comprises a reinforcing plate, the right side of the reinforcing plate is fixedly connected with two connecting strips, the right side of each connecting strip is fixedly connected with a fixing plate, the bottom of the fixing plate is fixedly connected with a connecting seat, and the inside of the connecting seat is in threaded connection with a fastening bolt. And a movable seat is rotationally connected into the connecting seat. According to the utility model, through the use of the adjusting mechanism, corresponding adjustment can be made when a deeper water area is detected, through the use of the clamping mechanism, a detection instrument can be fixed, and the problem that when water area environment detection work is carried out, a detection support needs to be generally placed on a shore or a shoal area, so that the detection is inconvenient is solved. The problems that the whole water area environment detection process becomes complicated and tedious and the water area environment detection working efficiency is greatly reduced due to the fact that the size of the detection support is huge and the detection support is extremely inconvenient to carry are solved, and the water area environment detection device has the advantage of being convenient to detect.

The invention relates to the technical field of ecological restoration infiltrating irrigation, in particular to a river beach ecological restoration infiltrating irrigation device, which is characterized in that one part of a capillary water absorption piece extends into an underground water level, and the other part of the capillary water absorption piece is arranged in a water storage space; the power assembly acts on the capillary water absorption piece, and part of saturated water absorbed by the capillary water absorption piece is converted into free water stored in the water storage space through mechanical action. One end of the capillary water delivery part is arranged in the water storage space, and the other end of the capillary water delivery part penetrates out of the water storage space and extends to a plant root system area to be infiltrated; the capillary water absorption part is utilized to actively enrich water from the underground water level, a mechanical action (such as periodic extrusion) is applied to the capillary water absorption part through the power assembly, so that capillary saturated water in the water absorption part is converted into gravity water capable of freely flowing, the gravity water is temporarily stored in the water storage space, and then the gravity water is stored in the water storage space through the capillary water delivery part. And the free water in the water storage space is continuously and slowly conveyed to a plant root zone needing infiltrating irrigation under the capillary action.

The application discloses a kind of offshore platform fish protection and fishing person drives away method and system, including by score using sound wave emission system sends away fish shoal by driving sound wave;Using soft corrosion-resistant material is blocked in offshore platform column outside, avoid fish class to be hurt;High-definition camera is set around offshore platform, and the fishing person who approaches is photographed;High-pitched loudspeaker is set around offshore platform, and the fishing person is warned and driven away;Fish shoal around offshore platform is driven away by sound wave, so that the fishing person does not fish and leaves voluntarily;Drone circles to the air above fishing person's boat, and plays the warning of driving away is photographed and;The situation that fishing person approaches offshore platform is recorded, and is punished.The method and system of the application can drive away fish shoal around offshore platform, avoid fish class to be hurt, and can drive away fishing person simultaneously, record illegal fishing, protect fish class while eliminating the danger brought by fishing person approaching offshore platform.

The present invention discloses a method and system for forecasting water conditions in a waterway based on nesting multiple neural network models. The method includes training a meteorological forecast model using historical meteorological data, training a meteorological-hydrological mapping model using meteorological elements and historical hydrological data for a day predicted by the meteorological-hydrological mapping model, and training a hydrological-hydrodynamic mapping model using surface runoff flow and historical hydrodynamic data predicted by the meteorological-hydrological mapping model; and nesting multiple trained neural network models to predict the waterway water level, water depth, or flow velocity distribution for multiple days in the future based on meteorological elements for multiple consecutive days before the current day in the target watershed. The present invention aims to overcome the technology for predicting water depth and bridge navigation clearance for complex waterways, solve the problem of multi-day forecasting of shoal water depth and bridge navigation clearance, and achieve simple, efficient, accurate, physically interpretable, and robust predictions of waterway water level, water depth, or flow velocity distribution for multiple stations in the target watershed for multiple days in the future.

The invention provides a shoal construction method for a grab dredger, and belongs to the technical field of grab dredger construction.The shoal construction method for the grab dredger comprises the following steps that S10, a surveying worker makes a corresponding construction file according to a construction plan, the construction file is imported into a dredge system of the grab dredger, and the initial excavation position of the grab dredger is marked in a background image; s20, the grab dredger is constructed in place, and if the distance between the initial excavation position and the berthing position of the grab dredger is smaller than 500 m, the grab dredger is controlled by an operator to swing the grab dredger in place; if the distance between the initial excavation position and the berthing position of the grab dredger is larger than 500 m; the grab dredger is propelled along the whole section of a construction area during excavation, the excavation angle can be changed at any time according to the tide water condition by utilizing the characteristic of flexible positioning of the grab dredger steel pile, so that the mud barge is always in a deep water area, and a sufficient convolution water area can be provided for the mud barge; the larboard or the starboard is flexibly selected to lean against the barge, so that the mud barge does not need to be moist.

The invention discloses a method and a device for constructing a lithofacies model in a riverway region under the condition of few wells. The method comprises the following steps: determining a plane layout map corresponding to a target layer in a target area, determining a target river channel area corresponding to the plane layout map, and obtaining multiple groups of sampling data corresponding to the target river channel area; determining a main variable range value corresponding to the target river channel region based on the multiple groups of sampling data corresponding to the target river channel region and the variation function, and determining a secondary variable range value corresponding to the target river channel region based on the main variable range value and the size information of the central beach in the target river channel region; and determining a layer structure model and a variable range direction corresponding to the target region, and determining a riverway region lithofacies model corresponding to the target layer based on the layer structure model, the main range value, the secondary range value and the variable range direction. According to the method, the accurate construction of the lithofacies model of the river region under the condition of few wells can be realized, and the construction, operability and flexibility of the lithofacies model of the river region are greatly improved.

The invention provides a recognition method and device for a hillock beach zone in a paleocarbonate rock platform, and the method comprises the steps: building a thickness-trough number-cloud-ash ratio relation model according to the stratum thickness, trough number and cloud-ash ratio determined by first logging data in a target work area; based on a thickness-trough number-cloud-to-ash ratio relation model, determining a cloud-to-ash ratio corresponding to the seismic data according to the stratum thickness and the trough number determined by the seismic data in the target work area, and further generating a cloud-to-ash ratio plane distribution diagram of the target work area; determining a cloud-to-ash ratio change interface according to the cloud-to-ash ratio plane distribution diagram; according to the seismic data, determining seismic facies characteristics corresponding to the cloud-to-ash ratio change interface; and according to the seismic facies characteristics, identifying the paleocarbonate rock abutment inner dune beach zone. The method uses the seismic data to quickly identify the mound beach zone, improves the identification accuracy and efficiency, and is significantly faster than artificial seismic facies interpretation. The method has a remarkable effect on researching the distribution rule of the hillocks and beaches in the platform and searching large-scale reservoirs.

The invention relates to the field of bridge engineering, in particular to a bridge early warning water level calculation method and system based on flow moduli, and the method comprises the steps: obtaining a bridge location section water level and flow relational expression and a flow modulus expression according to river shoal and river channel conditions, and determining the flow modulus at a specific flood frequency; analyzing a flow modulus and water depth relation curve according to the flow modulus expression, and obtaining the flow modulus and water depth relation curve under the current condition by combining the riverbed design information and the relation curve; combining the relation curve to obtain a current situation and design flood flow analysis formula, and calculating a current situation river flow modulus; obtaining a warning flood correlation expression based on the flow modulus expression, and deducing a flow relational expression between the warning flood and the known flood frequency; according to the method, derivation and analysis are conducted based on the data model, various factors and change rules of the river are considered, the accuracy and reliability of early warning are improved, and bridge flood prevention early warning is achieved.

The invention discloses piling equipment for an overwater precast pile applied to medium and small river treatment, and belongs to the field of piling equipment. Comprising a traction mechanism, and a driving mechanism is arranged on the left side of the traction mechanism; a moving mechanism is arranged below the traction mechanism; a knocking mechanism is arranged on the inner side of the moving mechanism; a suction mechanism is arranged on the left side of the moving mechanism; the traction mechanism comprises two mounting plates, a rotating rod is rotationally connected between the two mounting plates through a rotating shaft, and a winding drum is fixedly connected to the outer side wall of the rotating rod; the left end of the rotating rod is fixedly connected with a circular gear I; the equipment is compact in overall structural design, universal wheels at the bottom of an L-shaped supporting plate in the moving mechanism are convenient to flexibly move on a bank or a shoal, the equipment can adapt to special working conditions of narrow medium and small rivers, shallow water depth and complex terrain, and the problem that traditional large piling equipment is difficult to enter an operation area is solved.

The present invention discloses a shoal structure for attracting wading birds, comprising a shoal area formed by being constructed on the shore and surrounded by a shoal outer wall, wherein a microhabitat structure is arranged in the shoal area; a maze area is constructed in the shoal area, wherein the maze area consists of a main maze passage and a plurality of side maze passages connected thereto; a plurality of entrances and exits to the shoal area are arranged on the shoal outer wall; the microhabitat structure comprises an annular microhabitat enclosure constructed in the shoal area, wherein the area surrounded by the microhabitat enclosure forms a microhabitat water area, wherein a plurality of plant planting constraint rings are fixedly arranged in the microhabitat water area; the maze-style shoal structure can enrich surrounding suitable aquatic animals in the shoal area, thereby improving the predation efficiency of target wading birds, enhancing their population breeding capacity, expanding the animal landscape and ecological restoration effect, and at the same time providing convenience for the investigation and monitoring of surrounding wading birds, especially rare species of wading birds.

The invention provides a wave spectrum estimation method and device based on a dynamic dispersion factor, and the method comprises the following steps: obtaining an ADCP speed sequence of continuous time, obtaining a vertical speed power spectrum based on the ADCP speed sequence, and obtaining complex value frequencies, wave numbers and depths of different frequency points; taking the complex value frequency, the wave number and the depth corresponding to the same frequency point as a group of input vectors, and inputting a plurality of groups of input vectors into a pre-trained dynamic dispersion factor prediction model in a batch input mode to obtain dynamic dispersion factors; and correcting the wave number of each frequency point by using the dynamic dispersion factor to obtain a corrected wave number, and obtaining the wave spectrum of the ADCP speed sequence based on the corrected wave number. According to the scheme, the dynamic dispersion factor is predicted by using complex value Transform network modeling, so that the frequency spectrum estimation precision and the wave parameter stability are improved under the condition of water depth change, and better technical support is provided for wave observation of complex water areas such as coastal areas and shoals.

The invention discloses a river channel large-section measurement method based on airborne laser radar and unmanned ship depth measurement. The unmanned aerial vehicle carries a laser radar to scan landforms on both banks, and the unmanned ship equipped with a single-beam depth finder is synchronously utilized to obtain underwater landforms; the data is subjected to space-time reference unification, point cloud calculation and classification and underwater data post-processing, fusion is carried out in a point cloud data processing system, and large-section data extraction and generation are carried out. Through man-machine cooperation, a 24 km river channel large-section task is completed in 3 days, and compared with a traditional RTK + manned ship depth finder, the efficiency is improved by 5 times. The method is suitable for large-scale river channel large-section measurement work, and is especially suitable for complex environments such as cliff steep banks, shoals, torrent and the like where manpower or manned ships cannot reach, the safety of operators is improved, and centimeter-level three-dimensional data is provided for water conservancy planning, flood control and disaster relief and engineering construction.

The present invention relates to the field of fishing, and more particularly to devices for controlling sonar transducers for studying the bottom topography of a body of water and detecting fish shoals or individual fish. A rotator for controlling a sonar transducer comprises: a first housing (7) having a first electric drive (8) mounted therein, said drive being mechanically connected to a shaft (11) with a sonar device thereon; a second housing (9) having a second electric drive (10) mounted therein, said drive being mechanically connected to a pointer handle (12, 14); and a control system. The control system is configured to be capable of providing for rotation of the second electric drive (10) upon rotation of the first electric drive (8), and vice versa. The technical result is that of reducing mechanical load on the electric drive for rotating the shaft and the pointer handle, thereby increasing the failure-free operating life of the device, while maintaining pointing accuracy with respect to an object of interest.

The invention belongs to the technical field of bridge construction equipment, and particularly relates to a shoal steel trestle steel pipe pile foundation guide hole operation platform and a construction method.The shoal steel trestle steel pipe pile foundation guide hole operation platform comprises a platform body, four supporting legs and an automatic leveling system, the four supporting legs are located at the four corners of the bottom face of the platform body respectively and connected with the platform body, and the automatic leveling system is in linkage fit with the platform body and the supporting legs; the automatic leveling system can cope with platform inclination caused by natural factors such as tidal water scouring and stormy waves in real time, and can resist the influence of three-level stormy waves; meanwhile, due to the design of an anti-skid cover plate, a cable storage groove and the like of the platform, potential safety hazards in the construction process are further eliminated, and the safety of constructors and equipment is comprehensively guaranteed; the platform main body is designed by adopting high-strength steel, so that the bearing capacity is high, and various drilling machines can be adapted; a reserved hoisting interface and a reserved cable storage groove facilitate installation and arrangement of equipment, and construction convenience is improved; the whole platform is simple in structure, convenient to operate and easy to maintain, and has good application and popularization value.

The present application relates to oil and gas geophysical exploration technology field, especially to a kind of double phase control dolomite bioclastic beach effective reservoir prediction method and device.Wherein the method includes: determining the target layer of work area;According to sedimentary paleogeomorphology, seismic attribute and seismic facies map to determine sedimentary microfacies;According to coherent attribute and karst paleogeomorphology to determine karst microfacies;The shear wave velocity of work area is predicted, and the limit value of dolomite bioclastic beach reservoir is determined;The prestack seismic waveform indicator inversion is carried out to the seismic data of work area, and the thickness of dolomite bioclastic beach reservoir in target layer is extracted according to the limit value;According to sedimentary microfacies, karst microfacies and dolomite bioclastic beach reservoir thickness, the effective reservoir thickness of dolomite bioclastic beach in target layer is determined.To solve the problem that the result precision of dolomite bioclastic beach effective reservoir prediction using spectral decomposition, wavelet decomposition reconstruction is low, the prediction accuracy using inversion method is poor, and high-precision prediction of dolomite bioclastic beach effective reservoir cannot be realized.