15 results about "Washout" patented technology

The invention discloses an offshore wind turbine foundation scouring full-period intelligent monitoring method and system based on multi-source data fusion and a dynamic coupling model, and relates to the technical field of intelligent monitoring, and the method comprises the steps: deploying a multi-source monitoring module, and constructing a finite element model; carrying out load calculation and parameter inversion; and training full-cycle dynamic updating of the washout failure function model. According to the method, a self-adaptive Kriging-Bayesian method is adopted, a Bayesian inversion framework and a self-adaptive agent model are fused to solve optimal soil body parameters, full-period model dynamic updating based on dynamic monitoring data is achieved, a multi-fidelity deep kernel learning model is adopted, three types of data are fused into a training set, full-period intelligent monitoring of offshore wind turbine foundation scouring is achieved, and the method has the advantages of being simple in structure, convenient to operate and high in practicability. The dynamic identification of soil parameters is realized by combining a self-adaptive inversion framework with a displacement error closed-loop optimization mechanism, and the technical problem that a traditional static model cannot adapt to the spatial-temporal variability of seabed geology is solved.

The invention discloses a road flood damage disaster rapid identification method and system based on remote sensing image analysis, and belongs to the technical field of remote sensing image analysis and disaster detection, and the method comprises the steps: extracting a change region of a pre-disaster and post-disaster remote sensing image through a multi-scale differential twin network change detection module; identifying five water destruction types, namely roadbed washout, pavement collapse, side slope collapse, retaining wall collapse and bridge and culvert damage, through the cascade attention water destruction semantic segmentation network; a multi-dimensional damage degree collaborative evaluation module is used for fusing form, spectrum and spatial characteristics to calculate a damage degree grade; according to the method and the system, rapid identification, accurate classification and comprehensive evaluation of highway flood damage disasters are realized, and technical support is provided for decision-making of after-disaster rescue and maintenance.

The application discloses an aerosol flushing simulation detection device and a detection method thereof. The device comprises a water supply device, a flow distribution device, an experimental box, a detection plate and a solution sampling device. The water supply device is connected with the flow distribution device. The top of the experimental box is provided with a water inlet, and the bottom is provided with a water outlet. The flow distribution device is connected with the experimental box through the water inlet. The solution sampling device is connected with the experimental box through the water outlet. The detection plate is attached with aerosol and is arranged in the experimental box. The inner wall of the containment vessel with aerosol deposition and the surface of the structure in the containment vessel are simulated by the detection plate. The water supply of the water supply device is dispersed by the flow distribution device to form a water film flow, so as to simulate the flushing of the aerosol by the water film flow in the containment vessel. Finally, the solution sampling device is used for sampling, and the flushing of the aerosol by the water film flow in the containment vessel is simulated.

An evanescent mode casting smelting sand-washing-prevention pouring basin belongs to the technical field of casting and comprises a basin wall 10 and a basin bottom 20 which form a molten iron containing space, the basin bottom 20 is provided with a plurality of runners 21 capable of enabling molten iron to flow out, a refractory brick set is embedded in the basin bottom 20, the upper surface of the basin bottom 20 comprises a resin sand layer, and the refractory brick set is not lower than the resin sand layer. The inner surface of the basin wall 10 and / or the surface of the refractory brick set are / is coated with fireproof paint, the refractory brick set is located at the molten iron scouring position, and molten iron buffered by the refractory brick set flows to the runner 21 through the resin sand layer. Through double protection measures of brushing the alcohol-based coating on the inner side wall of the pouring basin and arranging the refractory bricks at the inner bottom of the pouring basin, the anti-scouring capability of the area is obviously enhanced, sand impurities are prevented from flowing into a cavity, the sand hole defect of a casting is reduced, and the finished product quality of the casting is obviously improved.

The invention provides an island working face thick and hard top plate ultra-long hole pressure relief and shock absorption method. The method comprises the steps that the positions of a main key layer and a plurality of sub-key layers of a thick and hard top plate above an island working face are determined; microseismic data of a working face roof during working face mining are collected, and the position of a key layer where a main washout rock stratum above the island working face is located is recognized; constructing an overlying strata structure model corresponding to the abnormal mine pressure induced by the fracture energy transfer of the key layer of the island working face; carrying out induced flushing mechanism judgment on the induced flushing rock stratum, and determining a disaster-causing main control layer and a plurality of disaster-causing sub-control layers; and super-long drilling construction pressure relief operation is conducted on the disaster-causing main control layer and the disaster-causing sub-control layers. According to the method, a key layer theory and micro-seismic data analysis are utilized, a key layer where an induced and flushed rock layer in a thick and hard top plate of the island working face is located is recognized, an overlying strata structure model above the island working face is constructed, a disaster-inducing main layer and a plurality of disaster-inducing sub-control layers are distinguished for the multiple induced and flushed rock layers, and therefore arrangement of ultra-long drill holes and pressure relief operation are carried out.

The invention relates to the technical field of cross-sea bridge seabed pile foundation scour protection construction equipment, in particular to a cross-sea bridge premixed flow state solidified soil scour protection construction robot and a construction method. The cross-sea bridge premixed flow state solidified soil scour protection construction robot is characterized in that the cross-sea bridge premixed flow state solidified soil scour protection construction robot comprises a water retaining device arranged on the upstream side of a seabed pile foundation, and a construction relative still water area of artificial low-speed ocean current can be formed on the inner side of the water retaining device; a movable cross beam is arranged on the water retaining device, a circumferential driving device is arranged between the water retaining device and the movable cross beam, a movable seat is arranged at the upper end of the movable cross beam, a radial driving device is arranged between the movable seat and the movable cross beam, and a pouring hopper is arranged on the movable seat. According to the method, a small-range construction relative still water area can be formed on the upstream side of the seabed pile foundation, the pouring washout loss of poured flow-state solidified soil in a seabed pile foundation washout area can be greatly reduced, the retention effect is improved, material waste, construction cost and manufacturing cost are greatly reduced, and the pouring area can be actively adjusted according to the range, needing protection, of ocean current washout.

A method for detecting a washout or overpressure event. The method includes receiving data signals from sensors at a wellsite, wherein the data signals include at least one surface originated measurement such as flowrate and a plurality of downhole originated measurements including turbine RPM. After any transient regions or outliers from the received data signals have been removed, a current downhole measurement signal may be compared with at least one previous downhole measurement signal from the same data signal to determine a predicted baseline. A current downhole measurement signal may be reported as suspicious each time it is detected to be lower than a predetermined threshold relative to the predicted baseline. An alarm may then be provided which indicates a washout or overpressure event when a threshold number of suspicious measurement signals have been detected. A wellsite action may then be performed that is based on the activated alarm.

The fish-scale pit soil preparation water and soil conservation structure comprises a semicircular pit body, the pit body is composed of a water storage area and a planting area, and a flow guide plate is fixedly arranged on the edge of the inner side of the pit body through a fixing pile; soil retaining structures are arranged on the outer sides of the guide plates; the drainage structure comprises a permeable layer arranged at the bottom of the water storage area and an overflow pipe arranged on the side wall of the flow guide plate, a vegetation slope protection layer is arranged on the slope surface of the planting area, and the vegetation slope protection layer is composed of vegetation bags and a fixing net; compared with the prior art, the water permeable layer can be used for purifying rainwater and slowly infiltrating the rainwater, so that the water storage capacity is enhanced, and meanwhile, underground water is supplemented. The diversion grooves in the diversion plates can guide water flow, damage caused by concentrated flushing of the water flow is avoided, the soil retaining structure formed by splicing the concrete prefabricated plates is combined, clamping grooves and clamping blocks between the soil retaining plates are meshed with one another, the structural stability is improved, soil pressure and water flow impact can be effectively resisted, and the risk of structural collapse is reduced.

This utility model discloses a dike reinforcement structure, relating to the field of hydraulic slope protection technology. The structure includes a slope protection box and anchor bolts. The slope protection box comprises an upper slope box section, a horizontal box section, and a lower slope box section connected as a single unit and internally interconnected. Two water inlets are provided on the outer wall of the lower slope box section; two ventilation holes are provided at the upper end of the upper slope box section. This utility model's slope protection box, with its upper, horizontal, and lower slope box sections connected as a single unit, provides comprehensive protection for the dike slope, effectively preventing water erosion and washout. The water inlets and ventilation holes help balance the pressure inside the box. It is particularly suitable for dike reinforcement projects in rivers, lakes, and coastal areas, especially in environments with rapid water flow and long-term erosion and wave impact. It allows for rapid installation during the flood season, significantly improving the stability and wave-resistant capability of the dike, effectively extending its service life, and ensuring the safety of the surrounding area.

The utility model relates to the technical field of earth and rockfill dam engineering tests, in particular to a dam core wall washout test device with a tensioning crack forming function. Comprising a test box, a wedge-shaped fracture forming plate and screws, a water inlet is formed in the head end of the test box, and a water outlet is formed in the tail end of the test box; a soil sample is compacted in the test box in a layered manner, the tail end of the wedge-shaped fracture-forming plate is horizontally inserted into a soil sample fracture-forming area, and the head end is exposed outside the soil sample; the screw is in threaded connection with the test box, and one end, extending into the test box, of the screw abuts against the head end of the wedge-shaped fracture forming plate. According to the utility model, the crack is formed in a tensioning manner, so that the interference on the crack caused by manual extraction of a crack forming plate is avoided; the purpose of controlling the depth and the opening degree of the crack is achieved by adjusting the screwing-in depth of the screw according to the force applied by the thread; and the crack is randomly formed and irregular, so that the problem that the crack surface is too flat after the crack is formed is avoided, and the crack is more suitable for the inducement of tensile stress crack forming.

The invention provides a multi-factor coupling regulation and control high-flux pipe flow type washout test device, and belongs to the technical field of washout corrosion experiment testing. The device comprises a fluid medium storage system, a built-in experiment medium and a main body pipeline; the sample loading system is used for loading experimental samples; the circulation driving and temperature control system drives the experimental medium to enter the main body pipeline to scour the experimental sample after the temperature of the experimental medium is adjusted by the temperature control system, and then the experimental medium flows back to the fluid medium storage system to form a closed circulation flow path; the multi-environmental factor online monitoring and control system is used for monitoring the temperature, the pH value, the flow rate, the dissolved oxygen concentration, the salinity and the conductivity of the experimental medium in real time; the multi-channel electrochemical testing system is used for carrying out synchronous or independent electrochemical testing on a plurality of samples; a control display and storage system is integrated, and the functions of parameter setting, real-time display, data storage, fault alarm and safety protection are integrated. Multiple environmental factors can be coupled, the washing flow state and working condition of the inner wall of the pipe can be truly simulated, and the device is suitable for synchronous testing of samples in various forms.

The invention relates to the technical field of slope protection engineering, in particular to a drainage system based on waste gully treatment filled with coal gangue and a construction method. The system comprises three parts: 1, a slope closure drainage structure; 2, an upstream flood discharge and drainage pipeline; and 3, a leachate collecting pipeline and a construction method thereof. According to the design, a method of combining zoned water drainage, water guide and water drainage is put forward, scouring of rainfall to the slope surface of the washout ditch can be reduced to the maximum extent from the construction period to the operation period, meanwhile, combination with other supporting structures is facilitated, and safety of the slope surface of the washout ditch is guaranteed. The problems of land resource occupation and environmental destruction caused by coal mining can be practically solved, the land space can be expanded, the land utilization value is improved, the ecological environment of a mining area is improved, and land space greening treatment and agricultural cultivation soil fertility improvement are achieved.

The invention relates to the technical field of river monitoring, and discloses a multi-scale base flow monitoring method and device, electronic equipment and a storage medium. Non-contact multi-source cooperative monitoring including satellite remote sensing, a synthetic aperture radar, a microwave radar and the like is adopted; the defect that traditional contact type measurement is prone to being affected by flood washout and sediment deposition in hilly and mountainous areas is effectively overcome, and on the basis, the key parameter of the water level which is high in continuity and has cross-scale representativeness serves as the core. And multi-scale collaborative continuous observation of site millimeter-level resolution, river reach centimeter-level inversion precision and watershed ten-meter-level satellite coverage is realized. Meanwhile, through long-term monitoring and algorithm optimization, a complete technical closed loop from water level observation, flow calculation to base flow is formed based on an improved digital filtering method, and an efficient, accurate and generalizable systematic solution is provided for base flow monitoring.

A railroad track washout detector including a monitor programmed to receive data from a conventional track circuit. The monitor is programmed to determine when there is a simultaneous increase in the transmit current and a decrease in the receive current of the track circuit representative of a rain event. The monitor is further programmed to determine when there is a simultaneous decrease in the transmit current and an increase in the receive current that represents drying out of the ballast and soil or a washout. If the simultaneous decrease in the transmit current and an increase in the receive current occurs too soon after the rain event and occurs too quickly, the monitor determines that a washout has occurred.

The invention discloses an automatic monitoring system for cutter wear of a full-water-covering complex changeable stratum, and belongs to the technical field of intelligent monitoring of shield construction, the automatic monitoring system comprises a sensing layer, a transmission layer, a platform layer and an application layer which are connected in sequence, and the sensing layer collects multi-source data such as cutter operation, cutter head panel wear and working condition parameters; the transmission layer performs edge preprocessing on the data and then transmits the data to the platform layer through an anti-interference double link; the platform layer eliminates interference such as muddy water corrosion, scouring and temperature drift through coupling abrasion calibration, calculates the real cutting abrasion amount of a cutter, accurately recognizes the fault type of the cutter by fusing multi-source state features, further evaluates the health state of the cutter in combination with cutter panel abrasion data, and generates a multi-scene linkage management and control strategy. And the application layer is used for visual display and early warning. According to the invention, the interference of a full-water-covering severe muddy water environment on monitoring data is effectively overcome, and high-precision monitoring and intelligent management and control of the health state of the shield cutter head and the cutter are realized.