Dock dredging method, system and electronic equipment

Abstract

The present invention relates to the technical field of dock dredging, and specifically discloses a dock dredging method, system and electronic equipment. The dock dredging method includes: conducting an assessment of the impact of underwater siltation on the dock structure, including constructing a finite element calculation model, simulating the working state of a high-pile dock at different siltation depths based on the finite element model, and conducting a centrifugal model test; studying the siltation law of the dock silt, including collecting hydrological siltation data of the waters near the project for many years and riverbed evolution analysis; using a pneumatic sand flushing device to treat the dock siltation, including locating the dredging position, building an indoor water tank to obtain the best pneumatic parameter combination, and arranging a pneumatic sand flushing device; and constructing an intelligent anti-siltation and safety assurance platform. The dock dredging method of the embodiment of the present invention can accurately evaluate the stress state of the dock structure before and after dredging, determine a reasonable maximum siltation depth and a maximum dredging elevation at the front, effectively avoid collapse accidents during dredging, and ensure the safety of the dock structure.

Description

Technical Field

[0001] The present invention relates to the technical field of dock dredging, and in particular to a dock dredging method, system and electronic equipment. Background Art

[0002] The siltation problem in the dock area is mainly caused by two reasons: first, the silt brought by water erosion is deposited in the dock area; second, the silt transportation and accumulation caused by human activities such as dock port operations and cargo ship traffic.

[0003] Traditional dredging methods mainly include mechanical dredging and manual dredging. These methods can alleviate the silt problem to a certain extent, but they have limitations in dredging efficiency and cost, and cannot effectively solve the silt problem in the long term. The difficulties in dredging are mainly manifested in:

[0004] The safety assessment of the wharf structure is difficult. The stress state of the wharf structure before and after dredging is unclear. There is a lack of effective safety assessment methods, and it is impossible to accurately judge the overall safety of the wharf.

[0005] The difficulty in clearing the siltation under the wharf. The water clearance under the wharf is low. Affected by the pile foundation, the siltation is difficult to clear, resulting in increasing pressure on the pile body and affecting the stability of the wharf structure.

[0006] There is a lack of evaluation on the stability of dredging conditions. In existing dredging operations, pier collapse accidents are often caused by over-dredging, and there is a lack of scientific evaluation on the stability of pier structures under different dredging conditions.

[0007] The siltation is getting worse and the cost is increasing. The changes in the water and sand dynamic environment in the dock area have led to worsening siltation. The frequency and cost of dredging are increasing year by year. Effective siltation reduction and prevention measures are urgently needed to reduce costs. Summary of the invention

[0008] The present invention aims to solve one of the technical problems in the related art to at least a certain extent. To this end, the purpose of the present invention is to provide a dock dredging method, system and electronic equipment to improve dredging efficiency, reduce unnecessary dredging operations and reduce dredging costs.

[0009] To achieve the above object, a first embodiment of the present invention provides a dock dredging method, the method comprising the following steps:

[0010] Conduct an assessment of the impact of underwater siltation on the wharf structure, including building a finite element calculation model, simulating the working conditions of the high-pile wharf at different siltation depths based on the finite element model, and conducting centrifuge model tests;

[0011] Study the sedimentation patterns of the wharf, including collecting hydrological sediment data of the waters near the project for many years and analyzing the riverbed evolution;

[0012] The pneumatic sand flushing device is used to deal with the siltation at the dock, including locating the desilting position, building an indoor water tank to obtain the best combination of pneumatic parameters, and arranging the pneumatic sand flushing device;

[0013] Build an intelligent anti-siltation and safety assurance platform to achieve comprehensive control of the silt removal and safety conditions of the terminal, issue early warning information in a timely manner, and ensure the safe operation of the terminal.

[0014] In some embodiments of the present invention, the construction of the finite element calculation model includes the following process:

[0015] Collect comprehensive wharf structure design drawings, including detailed information such as pile foundation layout, pier structure, superstructure, and high-precision underwater topographic survey data to ensure the accuracy of model construction;

[0016] Select appropriate finite element analysis software, model the wharf structure according to its actual material properties, geometric shape and boundary conditions, discretize the wharf structure into a finite number of units, such as beam units, plate units and solid units, and simulate the connection and interaction between different components;

[0017] The physical and mechanical parameters of the silt body obtained through field sampling and indoor tests are input into the above-mentioned model, with a focus on setting the soil parameters of the silt area. The stress and deformation of the wharf structure under the existing siltation conditions under the combined action of multiple loads such as deadweight, ship load, and water flow force are simulated to evaluate the overall safety of the wharf structure and identify possible weak points.

[0018] In some embodiments of the present invention, the simulation of the working state of the high-pile wharf at different siltation depths based on the finite element model includes the following process:

[0019] Based on the finite element model, using professional numerical simulation software, different siltation depth conditions are set, and the siltation height under the dock is gradually increased to simulate the working state of the high-pile dock at different siltation depths;

[0020] Detailed analysis of the stress characteristics of the pile foundation under various working conditions, including the distribution and variation of axial force, bending moment, and shear force, and study of the evolution trend of the overall stability of the wharf structure, such as displacement mode, deformation degree, and whether instability and failure will occur;

[0021] By comparing the simulation results under different working conditions, the key siltation depth factor that affects the safety of the wharf structure is determined. For example, within a certain siltation depth range, the stress on the pile foundation will increase sharply and the structural stability will decrease significantly, providing a theoretical basis for the subsequent determination of a reasonable dredging depth.

[0022] In some embodiments of the present invention, the centrifuge model test comprises the following process:

[0023] Prepare a test model similar to the actual wharf structure and sedimentation conditions, and reduce the wharf structure, pile foundation and sedimentation body in a certain proportion to ensure that the model can accurately reflect the mechanical characteristics of the actual project;

[0024] The prepared model is installed in the port centrifugal simulation system, and the system parameters are adjusted so that the model reaches a stress state similar to that of the actual project under the action of centrifugal force;

[0025] Simulate different dredging conditions, observe and record the displacement changes of the pile foundation during the dredging process by controlling the dredging depth, range and method variables, and use high-precision displacement sensors for real-time monitoring; measure the evolution of axial force and bending moment, and collect data with the help of strain gauge sensors embedded in the pile foundation;

[0026] A detailed analysis of the test data was conducted to determine the maximum siltation depth that the pile foundation under the wharf can withstand and the maximum safe depth during front-line dredging. This safe depth can ensure the dredging effect without causing adverse effects on the wharf structure, providing an accurate safety range reference for actual dredging operations.

[0027] In some embodiments of the present invention, the locating the dredging position includes the following process:

[0028] Conduct a detailed investigation and analysis of the water flow characteristics in the area where the dock is located, including the periodic changes in the tide, the distribution characteristics of the flow velocity and direction, and the differences in water flow characteristics in different seasons; at the same time, study the sedimentation characteristics, such as the particle composition, density, and viscous physical properties of the sediment, as well as the distribution range and thickness changes of the sediment body;

[0029] According to the characteristics of water flow and siltation, combined with the actual operational needs and structural characteristics of the wharf, the appropriate application locations of the pneumatic sand flushing device at the wharf are determined, such as priority deployment in areas with severe siltation and slow water flow; selecting appropriate application time periods, such as starting sand flushing when the water flow is strong during high tide, can improve the sand flushing effect and enhance the pertinence and effectiveness of technical application.

[0030] In some embodiments of the present invention, the construction of an indoor water tank to obtain an optimal combination of pneumatic parameters includes the following process:

[0031] Design and build a special indoor water tank test device to simulate the actual water flow and sediment environment of the dock. The size, shape and water flow conditions of the water tank can be adjusted according to the actual situation to ensure that the test results are representative;

[0032] Different types of silt are configured to simulate the characteristics of silt deposited at the dock, and a silt layer of a certain thickness is laid in the water tank to simulate different siltation depths;

[0033] The test was conducted by changing the pneumatic parameters, including adjusting the air supply pressure and air volume, observing the starting, suspension and transport effects of the sediment, and recording the movement trajectory, suspension height and transport distance data of the sediment particles;

[0034] Analyze the sedimentation characteristics and compaction properties of sediment under different pneumatic parameters, and study its deposition law after the air supply is stopped, so as to provide a reference for determining the reasonable exhaust time and interval;

[0035] The influence of different water depths, air pressures and opening methods on sediment start-up, suspension height and vertical distribution is studied. Through multiple groups of comparative tests, the best combination of pneumatic parameters is obtained to achieve efficient dredging.

[0036] In some embodiments of the present invention, the arrangement of the pneumatic sand flushing device includes the following process:

[0037] According to the results of the indoor water tank test, combined with the actual terrain and siltation distribution of the wharf, the layout of the pneumatic sand flushing device is proposed; the number, location and spacing of the air discharge units are determined, such as appropriately increasing the number of air discharge units in areas with severe siltation; the influence of the wharf structure is considered to avoid adverse effects of the air discharge layout on the wharf pile foundation, etc.

[0038] Determine the specific technical parameters, including the selection of the air pump, the capacity and pressure level of the high-pressure gas tank, and the opening parameters of the air exhaust, to ensure that while achieving efficient dredging effects, the equipment cost and energy consumption are minimized, thereby improving the economy and feasibility of the system.

[0039] In some embodiments of the present invention, the construction of the intelligent anti-siltation and safety assurance platform includes two parts: one is the establishment of a safety monitoring system; the other is the development and application of a cloud platform;

[0040] The establishment of the safety monitoring system includes: the selection and arrangement of monitoring instruments, the construction of data acquisition and processing systems, and the construction of data transmission systems;

[0041] The development and application of the cloud platform include: cloud platform architecture design, comprehensive data analysis and processing, and the realization of early warning and forecasting functions.

[0042] To achieve the above-mentioned purpose, the second embodiment of the present invention proposes a dock dredging system, which includes: a data acquisition system, a data analysis and processing system, a control decision system and an execution system, wherein:

[0043] The data acquisition system includes:

[0044] Sensor network: Various sensors are placed at key locations of the wharf, such as pressure sensors, displacement sensors, flow rate sensors, and sand content sensors, to collect real-time data on the wharf structure's stress, deformation, water flow, and sediment;

[0045] Data transmission module: uses wireless transmission technology to stably and efficiently transmit the data collected by the sensor to the data processing center to ensure the timeliness and accuracy of the data;

[0046] The data analysis and processing system includes:

[0047] Data receiving and storage unit: Receives various types of data from the data acquisition system, stores them by category, and establishes a terminal operation database to provide data support for subsequent analysis;

[0048] Model calculation and analysis module: Analyze and process the stored data using finite element models and tidal sediment mathematical models, evaluate the safety of the wharf structure, simulate sedimentation and scouring processes, calculate the stress and deformation of the wharf structure under different working conditions, predict sedimentation trends, and provide a scientific basis for decision-making;

[0049] The control decision system includes:

[0050] Intelligent control unit: According to the data analysis results obtained by the data analysis and processing system, control instructions are automatically generated to control the operating parameters of the pneumatic sand flushing device, such as start, stop, exhaust pressure, and exhaust time, to achieve intelligent dredging operations;

[0051] Early warning and decision support module: When the monitoring data exceeds the safety threshold, it will issue early warning signals in time and provide corresponding decision suggestions, such as adjusting the dredging plan, taking emergency protective measures, etc., to ensure the safety of the terminal;

[0052] The execution system includes:

[0053] Pneumatic sand flushing device: including air pump, high-pressure air tank, and air exhaust, which delivers compressed air to the river bottom according to control instructions, impacts the sediment to suspend it, and combines with the water flow to carry away the sediment to achieve the purpose of dredging;

[0054] Auxiliary equipment: including water level regulating devices and sediment conveying equipment, which are used to assist the pneumatic sand flushing device in completing the dredging operation.

[0055] To achieve the above objectives, a third aspect of the present invention provides an electronic device, comprising a memory, a processor and a computer program stored in the memory, wherein when the computer program is executed by the processor, the above-mentioned dock dredging method is implemented.

[0056] The dock dredging method, system and electronic equipment of the embodiments of the present invention can accurately evaluate the stress state of the dock structure before and after dredging, determine the reasonable maximum siltation depth and the maximum dredging elevation at the front, effectively avoid collapse accidents during dredging, and ensure the safety of the dock structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 It is a schematic diagram of the process of a dock dredging method according to an embodiment of the present invention;

[0058] Figure 2 This is a schematic diagram of the pneumatic sand flushing principle of an embodiment of the present invention;

[0059] Figure 3 is a schematic diagram of a finite element model for wharf stability analysis according to an embodiment of the present invention;

[0060] Figure 4 is a schematic diagram of numerical simulation of pile foundation stability of a wharf structure according to an embodiment of the present invention;

[0061] Figure 5 It is a schematic diagram of a centrifugal model test on the stability of a pile foundation of a wharf structure according to an embodiment of the present invention;

[0062] Figure 6 is a schematic diagram of a test water tank according to an embodiment of the present invention;

[0063] Figure 7 1. (a) is a schematic diagram of a clean water tank test and (b) is a result diagram of a gas movement test in water according to an embodiment of the present invention;

[0064] Figure 8 This is a display diagram of a dock intelligent anti-siltation and safety assurance platform according to an embodiment of the present invention;

[0065] Fig. 9 It is a schematic structural diagram of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0066] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0067] The following describes the dock dredging method, system and electronic equipment according to embodiments of the present invention with reference to the accompanying drawings.

[0068] Figure 1 It is a schematic diagram of the process of a dock dredging method according to an embodiment of the present invention.

[0069] like Figure 1 As shown, the wharf dredging method includes the following steps:

[0070] S1. Conduct an assessment of the impact of underwater siltation on the wharf structure, including constructing a finite element calculation model, simulating the working conditions of the high-pile wharf at different siltation depths based on the finite element model, and conducting centrifuge model tests.

[0071] It should be noted that before constructing the finite element calculation model, on-site sampling and indoor testing are required, including organizing a professional technical team, equipping professional sampling equipment, and conducting multi-point and layered sampling of the sediment bodies at different locations under and on the front of the dock. Ensure that the samples taken can accurately represent the sedimentation conditions of the entire area, covering the sediment characteristics of different depths and different areas.

[0072] In the laboratory, it is necessary to use advanced geotechnical testing instruments and strictly follow relevant standard test methods to conduct strength tests on samples, such as unconfined compressive strength tests and triaxial compression tests, to obtain the shear strength parameters of the sediment body; conduct permeability tests to measure the permeability coefficient of the sediment and understand its permeability. These physical and mechanical characteristic parameters are the key basic data for the subsequent construction of calculation models and analysis of the safety of the wharf structure.

[0073] S2. Study the sedimentation patterns of the wharf, including collecting hydrological and sediment data of the waters near the project for many years and analyzing the riverbed evolution.

[0074] As an example, data collection and riverbed evolution analysis includes the following steps:

[0075] The hydrological sediment data of the waters near the project for many years were collected from local hydrological departments, port management agencies and other channels, including data on water level changes, flow velocity and direction distribution, changes in sediment content, and underwater topographic survey results in different periods, to ensure the continuity and integrity of the data. Combined with the recent special on-site hydrological and topographic observation data, the data were integrated and visualized using technical means such as geographic information systems (GIS). The changes in the scouring and silting of underwater shoals and channels in the project area before and after the changes in the surrounding coastline were analyzed in detail, such as the silting or scouring range and depth of the shoals, the changing trend of the waterway depth, etc., to sort out the historical process and recent dynamic characteristics of the riverbed evolution in the project waters.

[0076] S3. Use pneumatic sand flushing devices to treat dock siltation, including locating the dredging location, building indoor water tanks to obtain the best combination of pneumatic parameters, and arranging pneumatic sand flushing devices.

[0077] Among them, the pneumatic sand flushing device includes an air pump, a high-pressure gas tank, and an air exhaust. Figure 2 As shown, the method of use is to transport compressed air to the river bottom according to control instructions, impact the sediment to make it suspended, and combine with the water flow to carry away the sediment to achieve the purpose of dredging.

[0078] S4. Build an intelligent anti-siltation and safety assurance platform to achieve comprehensive control of the silt removal and safety status of the terminal, issue early warning information in a timely manner, and ensure the safe operation of the terminal.

[0079] The above method can accurately evaluate the stress state of the wharf structure before and after dredging, determine the reasonable maximum siltation depth and the maximum dredging elevation at the front, effectively avoid collapse accidents during dredging, and ensure the safety of the wharf structure. Then, the operation status of the wharf can be monitored in real time, safety hazards can be discovered in time, and measures can be taken in advance through the early warning and forecasting system to reduce safety risks.

[0080] In some embodiments of the present invention, constructing a finite element calculation model includes the following process:

[0081] Collect comprehensive wharf structure design drawings, including detailed information such as pile foundation layout, pier structure, superstructure, and high-precision underwater topographic survey data to ensure the accuracy of model construction;

[0082] Select appropriate finite element analysis software, model the wharf structure according to its actual material properties, geometric shape and boundary conditions, discretize the wharf structure into a finite number of units, such as beam units, plate units, solid units, etc., and simulate the connection and interaction between different components;

[0083] The physical and mechanical parameters of the silt body obtained through field sampling and indoor tests are input into the above-mentioned model, with a focus on setting the soil parameters of the silt area. The stress and deformation of the wharf structure under the existing siltation conditions under the combined action of multiple loads such as deadweight, ship load, and water flow force are simulated to evaluate the overall safety of the wharf structure and identify possible weak points.

[0084] In some embodiments of the present invention, Figure 3 As shown in the figure, the simulation of the working state of the high-pile wharf at different siltation depths based on the finite element model includes the following processes:

[0085] Based on the finite element model, using professional numerical simulation software, different siltation depth conditions are set, and the siltation height under the dock is gradually increased to simulate the working state of the high-pile dock at different siltation depths;

[0086] The stress characteristics of the pile foundation under various working conditions are analyzed in detail, including the distribution and variation of axial force, bending moment and shear force, and the evolution trend of the overall stability of the wharf structure is studied, such as displacement mode, deformation degree, and whether instability and failure will occur.

[0087] By comparing the simulation results under different working conditions, the key siltation depth factor that affects the safety of the wharf structure is determined. For example, within a certain siltation depth range, the stress on the pile foundation will increase sharply and the structural stability will decrease significantly, providing a theoretical basis for the subsequent determination of a reasonable dredging depth.

[0088] In addition, it is also necessary to conduct numerical simulation tests on pile foundation stability for the existing wharf structure, such as Figure 4 As shown, the following steps are included:

[0089] Based on the finite element model, using professional numerical simulation software, different siltation depth conditions are set, and the siltation height under the dock is gradually increased to simulate the working state of the high-pile dock at different siltation depths;

[0090] Detailed analysis of the stress characteristics of the pile foundation under various working conditions, including the distribution and variation of axial force, bending moment, and shear force, and study of the evolution trend of the overall stability of the wharf structure, such as displacement mode, deformation degree, and whether instability and failure will occur;

[0091] By comparing the simulation results of different working conditions, the key siltation depth factor that affects the safety of the wharf structure is determined. For example, within a certain siltation depth range, the stress on the pile foundation will increase sharply and the structural stability will decrease significantly, providing a theoretical basis for the subsequent determination of a reasonable dredging depth.

[0092] In some embodiments of the present invention, Figure 5 As shown, the centrifuge model test includes the following procedures:

[0093] Prepare a test model similar to the actual wharf structure and sedimentation conditions, and reduce the wharf structure, pile foundation and sedimentation body in a certain proportion to ensure that the model can accurately reflect the mechanical characteristics of the actual project;

[0094] The prepared model is installed in the port centrifugal simulation system, and the system parameters are adjusted so that the model reaches a stress state similar to that of the actual project under the action of centrifugal force;

[0095] Simulate different dredging conditions, observe and record the displacement changes of the pile foundation during the dredging process by controlling variables such as dredging depth, range and method, and use high-precision displacement sensors for real-time monitoring; measure the evolution of axial force and bending moment, and collect data with the help of sensors such as strain gauges embedded in the pile foundation;

[0096] A detailed analysis of the test data was conducted to determine the maximum siltation depth that the pile foundation under the wharf can withstand and the maximum safe depth during front-line dredging. This safe depth can ensure the dredging effect without causing adverse effects on the wharf structure, providing an accurate safety range reference for actual dredging operations.

[0097] In step S2, in order to study the sedimentation law of the wharf, in addition to data collection and riverbed evolution analysis, the tidal sediment mathematical model should be applied, including:

[0098] According to the actual topography, boundary conditions and water-sediment characteristics of the project waters, select appropriate tidal sediment mathematical models, such as two-dimensional or three-dimensional hydrodynamic models, sediment transport models, etc., and calibrate and verify the model parameters to ensure that the model can accurately simulate the hydrodynamic and sediment movement processes in the area;

[0099] Input the collected representative water and sediment condition data, such as flow velocity, flow direction, and sediment content during spring and neap tides, and run the model to simulate the hydrodynamic changes in the project waters during different time periods, including flow velocity field, water level changes, flow characteristics, etc. Simulate the evolution of riverbed scouring and silting, and analyze the dynamic laws of sediment deposition locations, deposition rates, scouring areas, etc.

[0100] Through the analysis of model results, we can conduct in-depth research on the relationship between water flow movement and silt deposition. For example, areas with reduced flow velocity are often high-incidence areas of silt deposition. This will provide a scientific basis for the subsequent formulation of targeted silt prevention and reduction measures and clarify which areas need special attention and governance.

[0101] In some embodiments of the present invention, locating the dredging position includes the following process:

[0102] Conduct a detailed investigation and analysis of the water flow characteristics in the area where the dock is located, including the periodic changes in the tide, the distribution characteristics of the flow velocity and direction, and the differences in water flow characteristics in different seasons. At the same time, study the sedimentation characteristics, such as the particle composition, density, viscosity and other physical properties of the sediment, as well as the distribution range and thickness changes of the sediment body.

[0103] According to the characteristics of water flow and siltation, combined with the actual operational needs and structural characteristics of the wharf, the appropriate application locations of the pneumatic sand flushing device at the wharf are determined, such as priority deployment in areas with severe siltation and slow water flow; selecting appropriate application time periods, such as starting sand flushing when the water flow is strong during high tide, can improve the sand flushing effect and enhance the pertinence and effectiveness of technical application.

[0104] In some embodiments of the present invention, Figure 6 , Figure 7 As shown, building an indoor water tank to obtain the best combination of pneumatic parameters includes the following process:

[0105] Design and build a special indoor water tank test device to simulate the actual water flow and sediment environment of the dock. The size, shape and water flow conditions of the water tank can be adjusted according to the actual situation to ensure that the test results are representative;

[0106] Different types of silt are configured to simulate the characteristics of silt deposited at the dock, and a silt layer of a certain thickness is laid in the water tank to simulate different siltation depths;

[0107] Change the pneumatic parameters to conduct experiments, including adjusting the air supply pressure (such as gradually changing from low pressure to high pressure), the air volume (different flow levels), observing the starting, suspension and transport effects of sediment, and recording the movement trajectory, suspension height and transport distance data of sediment particles;

[0108] Analyze the sedimentation characteristics and compaction properties of sediment under different pneumatic parameters, and study its deposition law after the air supply is stopped, so as to provide a reference for determining the reasonable exhaust time and interval;

[0109] The influence of different water depths, air pressures, and hole opening methods (such as hole size, hole distribution, etc.) on sediment start-up, suspension height, and vertical distribution is studied. Through multiple groups of comparative tests, the optimal combination of pneumatic parameters is obtained to achieve efficient dredging.

[0110] In some embodiments of the present invention, arranging a pneumatic sand flushing device includes the following process:

[0111] According to the results of the indoor water tank test, combined with the actual terrain and siltation distribution of the wharf, the layout of the pneumatic sand flushing device is proposed. Determine the number, location and spacing of the air discharge units, such as appropriately increasing the density of air discharge units in areas with severe siltation; consider the impact of the wharf structure to avoid adverse effects of the air discharge layout on the wharf pile foundation, etc.;

[0112] Determine the specific technical parameters, including the selection of the air pump (determine the power and other parameters according to the required air pressure and air volume), the capacity and pressure level of the high-pressure gas tank, the opening parameters of the gas exhaust (aperture, number of holes, opening direction), etc., to ensure that while achieving efficient dredging effects, the equipment cost and energy consumption are minimized, and the economy and feasibility of the system are improved;

[0113] In some embodiments of the present invention, the construction of the intelligent anti-siltation and safety assurance platform includes two parts: first, the establishment of a safety monitoring system; second, the development and application of a cloud platform;

[0114] The establishment of the safety monitoring system includes: the selection and arrangement of monitoring instruments, the construction of data acquisition and processing systems, and the construction of data transmission systems;

[0115] Selection and layout of monitoring instruments: Select monitoring instruments of appropriate type and accuracy according to the structural characteristics and monitoring requirements of the wharf. For example, install high-precision strain sensors on the wharf pile foundation to monitor the force changes of the pile foundation during dredging and daily operations; set up settlement sensors on the wharf ground and key parts to monitor settlement displacement in real time; arrange flow rate sensors and water level sensors in the water area to grasp the water flow dynamic conditions. Reasonably plan the layout of monitoring instruments to ensure that they can fully and accurately reflect the overall condition of the wharf. Focus on the layout at the front and rear of the wharf, different berth areas, and key areas of concern for siltation to form a complete monitoring network.

[0116] Data acquisition and processing system construction: Establish a data acquisition hardware platform, including data acquisition instruments, signal amplifiers and other equipment, to ensure that analog or digital signals from monitoring instruments can be stably and efficiently received. Develop data acquisition software with functions such as real-time data acquisition, data preprocessing, and data storage. Perform preliminary screening and processing on the collected data, remove outliers and noise interference, and store the processed data in a database in a certain format to facilitate subsequent query and analysis.

[0117] Data transmission system construction: Select appropriate data transmission methods, such as wireless transmission (Wi-Fi, ZigBee, etc.) or wired transmission (Ethernet, optical fiber, etc.), and determine the transmission plan according to the actual environment and distance requirements of the terminal. Establish a stable data transmission network to ensure that data can be transmitted from the collection end to the control center in real time and accurately. Set up data transmission protocols and encryption mechanisms to ensure the security and reliability of data transmission.

[0118] The development and application of the cloud platform include: cloud platform architecture design, comprehensive data analysis and processing, and the realization of early warning and forecasting functions.

[0119] Cloud platform architecture design: Cloud computing technology is used to build a cloud platform architecture, including the infrastructure layer (providing computing, storage, network and other resources), the data layer (storing terminal monitoring data, historical data, model calculation results, etc.), the service layer (providing data processing, analysis, early warning and other services) and the application layer (providing users with visual interfaces and operation functions). Ensure that the cloud platform has high availability, high scalability and high performance, and can meet the terminal's long-term, large-scale data processing and real-time monitoring needs.

[0120] Comprehensive data analysis and processing: Develop a comprehensive data analysis module on the cloud platform, combine real-time monitoring data with historical data, and use data analysis algorithms and models, such as time series analysis and machine learning algorithms, to conduct a comprehensive analysis of the wharf siltation, dredging effect, pile foundation performance, etc. Calculate key indicators such as the wharf siltation rate, the amount of sediment change before and after dredging, and the stress and deformation trend of the pile foundation to evaluate the safety status of the wharf and the effectiveness of dredging measures.

[0121] Early warning and forecasting function realization: According to the terminal structure safety standards and operation requirements, set a reasonable early warning threshold. When the monitoring data exceeds the threshold, the cloud platform automatically triggers the early warning mechanism and promptly notifies relevant personnel through SMS, email, sound and light alarms, etc. Provide early warning and forecast information, such as predicting the siltation development trend of the terminal in the future, possible safety risks, etc., to provide decision-making support for terminal operation management and ensure the safe operation of the terminal.

[0122] To achieve the above-mentioned purpose, the present invention also proposes a dock dredging system, comprising: a data acquisition system, a data analysis and processing system, a control decision system and an execution system, wherein:

[0123] The data acquisition system includes:

[0124] Sensor network: Various sensors are placed at key locations of the wharf, such as pressure sensors, displacement sensors, flow rate sensors, and sand content sensors, to collect real-time data on the wharf structure's stress, deformation, water flow, and sediment;

[0125] Data transmission module: Use wireless transmission technology (such as Wi-Fi, 4G / 5G, etc.) to stably and efficiently transmit the data collected by the sensor to the data processing center to ensure the timeliness and accuracy of the data;

[0126] The data analysis and processing system includes:

[0127] Data receiving and storage unit: Receives various types of data from the data acquisition system, stores them by category, and establishes a terminal operation database to provide data support for subsequent analysis;

[0128] Model calculation and analysis module: Analyze and process the stored data using finite element models and tidal sediment mathematical models, evaluate the safety of the wharf structure, simulate sedimentation and scouring processes, calculate the stress and deformation of the wharf structure under different working conditions, predict sedimentation trends, and provide a scientific basis for decision-making;

[0129] The control decision system includes:

[0130] Intelligent control unit: According to the data analysis results obtained by the data analysis and processing system, control instructions are automatically generated to control the operating parameters of dredging equipment such as pneumatic sand flushing devices, such as start, stop, exhaust pressure, exhaust time, etc., to achieve intelligent dredging operations;

[0131] Early warning and decision support module: When the monitoring data exceeds the safety threshold, it will issue early warning signals in time and provide corresponding decision suggestions, such as adjusting the dredging plan, taking emergency protective measures, etc., to ensure the safety of the terminal;

[0132] The execution system includes:

[0133] Pneumatic sand flushing device: including air pump, high-pressure gas tank, and air exhaust, which delivers compressed air to the river bottom according to control instructions, impacts the silt to suspend it, and combines with the water flow to carry away the silt to achieve the purpose of dredging. The air exhaust unit is reasonably arranged according to the actual situation of the wharf to ensure that the dredging effect covers the entire wharf area;

[0134] Auxiliary equipment: including water level regulating devices and sediment transporting equipment, which are used to assist the pneumatic sand flushing device in completing the dredging operation, such as adjusting the water level to optimize the sand flushing effect and transporting the cleared sediment to the designated location for treatment.

[0135] Based on pneumatic flushing technology, the system has developed a complete solution for reducing and preventing siltation of wharf pile foundation structures, clarified specific measures to reduce the maximum siltation depth and optimize the dredging process, and carried out an on-site demonstration of pneumatic flushing and siltation reduction measures at the high-pile wharf in front of the offshore dock wharf to verify the effectiveness and feasibility of the solution, laying the foundation for its subsequent comprehensive promotion.

[0136] Corresponding to the above embodiment, the present invention further provides an electronic device.

[0137] like Fig. 9 The figure shows a schematic diagram of the structure of an electronic device in the present invention, where the electronic device 200 includes: a processor 201 and a memory 203. The processor 201 and the memory 203 are connected, such as through a bus 202. Optionally, the electronic device 200 may further include a transceiver 204. It should be noted that in actual applications, the transceiver 204 is not limited to one, and the structure of the electronic device 200 does not constitute a limitation on the embodiments of the present invention.

[0138] The processor 201 may be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It may implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of the present invention. The processor 201 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0139] The bus 202 may include a path to transmit information between the above components. The bus 202 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus. The bus 202 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig. 9Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0140] The memory 203 is used to store a computer program corresponding to the dock dredging method of the above embodiment of the present invention, and the computer program is controlled and executed by the processor 201. The processor 201 is used to execute the computer program stored in the memory 203 to implement the contents shown in the above method embodiment.

[0141] The electronic device 200 includes, but is not limited to, mobile terminals such as laptop computers, PADs (tablet computers), and fixed terminals such as desktop computers. Fig. 9 The electronic device 200 shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0142] The electronic device 200 of the embodiment of the present invention can accurately evaluate the stress state of the dock structure before and after dredging, determine the reasonable maximum siltation depth and the maximum dredging elevation at the front, effectively avoid collapse accidents during dredging, and ensure the safety of the dock structure.

[0143] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or otherwise processing in a suitable manner if necessary, and then stored in a computer memory.

[0144] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0145] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0146] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0147] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A dock dredging method, characterized in that: The method comprises the following steps: Conduct an assessment of the impact of underwater siltation on the wharf structure, including building a finite element calculation model, simulating the working conditions of the high-pile wharf at different siltation depths based on the finite element model, and conducting centrifuge model tests; Study the sedimentation patterns of the wharf, including collecting hydrological sediment data of the waters near the project for many years and analyzing the riverbed evolution; The pneumatic sand flushing device is used to deal with the siltation at the dock, including locating the desilting position, building an indoor water tank to obtain the best combination of pneumatic parameters, and arranging the pneumatic sand flushing device; Build an intelligent anti-siltation and safety assurance platform to achieve comprehensive control of the silt removal and safety status of the terminal, issue early warning information in a timely manner, and ensure the safe operation of the terminal; The construction of the finite element calculation model includes the following processes: Collect comprehensive dock structure design drawings and underwater topographic survey data; Select finite element analysis software to model the wharf structure based on its actual material properties, geometric shape and boundary conditions, discretize the wharf structure into a finite number of units, and simulate the connection and interaction between different components; The physical and mechanical parameters of the sediment body obtained through field sampling and indoor tests are input into the above model to simulate the stress and deformation of the wharf structure under the action of various load combinations under the existing sedimentation conditions, so as to evaluate the overall safety of the wharf structure.

2. The dock dredging method according to claim 1, characterized in that: The simulation of the working state of the high-pile wharf at different siltation depths based on the finite element model includes the following process: Based on the finite element model, using professional numerical simulation software, different siltation depth conditions are set, and the siltation height under the dock is gradually increased to simulate the working state of the high-pile dock at different siltation depths; Detailed analysis of the stress characteristics of pile foundations under various working conditions, including the distribution and variation of axial force, bending moment, and shear force, and study of the evolution trend of the overall stability of the wharf structure; By comparing the simulation results under different working conditions, the key siltation depth factors that affect the safety of the wharf structure are determined, providing a theoretical basis for the subsequent determination of a reasonable dredging depth.

3. The dock dredging method according to claim 1, characterized in that: The centrifugal model test comprises the following process: Preparation of test models similar to the actual wharf structure and siltation conditions; The prepared model is installed in the port centrifugal simulation system, and the system parameters are adjusted so that the model reaches a stress state similar to that of the actual project under the action of centrifugal force; Simulate different dredging conditions, observe and record the displacement changes of pile foundations during the dredging process; The test data were analyzed in detail to determine the maximum siltation depth that the pile foundation under the pier could withstand and the maximum safe depth for frontal dredging.

4. The dock dredging method according to claim 1, characterized in that: The locating and desilting position includes the following processes: Analyze the water flow characteristics in the area where the dock is located, and study the sedimentation characteristics, distribution range and thickness changes of the sedimentation bodies; According to the characteristics of water flow and siltation, combined with the actual operational needs and structural characteristics of the wharf, the appropriate application locations of the pneumatic sand flushing device at the wharf are determined.

5. The dock dredging method according to claim 1, characterized in that: The construction of the indoor water tank to obtain the best combination of pneumatic parameters includes the following processes: Design and build a special indoor water tank test device to simulate the actual water flow and sediment environment of the dock; Configure different types of silt to simulate the characteristics of silt deposited at the dock, lay silt layers in the water tank to simulate different siltation depths; The pneumatic parameters were changed to conduct experiments, and the starting, suspension and transport effects of the sediment were observed, and the movement trajectory, suspension height and transport distance of the sediment particles were recorded; Analyze the sedimentation characteristics and compaction properties of sediment under different pneumatic parameters, and study its deposition law after the air supply is stopped, so as to provide a reference for determining the reasonable exhaust time and interval; The influence of different water depths, air pressures and opening methods on sediment start-up, suspension height and vertical distribution is studied, and the optimal combination of aerodynamic parameters is obtained through multiple groups of comparative tests.

6. The dock dredging method according to claim 1, characterized in that: The arrangement of the pneumatic sand flushing device includes the following process: According to the indoor flume test results, combined with the actual topography and siltation distribution of the wharf, the number, location and spacing of the air discharge units are determined; Determine the specific technical parameters, including the selection of the air pump, the capacity and pressure level of the high-pressure gas tank, and the opening parameters of the gas exhaust.

7. The dock dredging method according to claim 1, characterized in that: The construction of the intelligent anti-siltation and safety assurance platform includes two parts: one is the establishment of a safety monitoring system; the other is the development and application of a cloud platform; The establishment of the safety monitoring system includes: the selection and arrangement of monitoring instruments, the construction of data acquisition and processing systems, and the construction of data transmission systems; The development and application of the cloud platform include: cloud platform architecture design, comprehensive data analysis and processing, and the realization of early warning and forecasting functions.

8. A dock dredging system, characterized in that: include: Data acquisition system, data analysis and processing system, control decision system and execution system, including: The data acquisition system includes: Sensor network: Various sensors are placed at key locations on the dock to collect real-time data on the dock structure’s stress, deformation, water flow, and sediment; Data transmission module: uses wireless transmission technology to stably and efficiently transmit the data collected by the sensor to the data processing center; The data analysis and processing system includes: Data receiving and storage unit: Receives various types of data from the data acquisition system, stores them by category, and establishes a terminal operation database to provide data support for subsequent analysis; Model calculation and analysis module: Analyze and process the stored data using finite element models and tidal sediment mathematical models, evaluate the safety of the wharf structure, simulate sedimentation and scouring processes, and predict sedimentation trends; The control decision system includes: Intelligent control unit: According to the data analysis results obtained by the data analysis and processing system, it automatically generates control instructions to control the operating parameters of the pneumatic sand flushing device to realize intelligent dredging operations; Early warning and decision support module: When the monitoring data exceeds the safety threshold, it will issue early warning signals in time and provide corresponding decision suggestions; The execution system includes: Pneumatic sand flushing device: including air pump, high-pressure air tank, and air exhaust, which delivers compressed air to the river bottom according to control instructions, impacts the sediment to suspend it, and combines with the water flow to carry away the sediment; Auxiliary equipment: including water level regulating devices and sediment conveying equipment, which are used to assist the pneumatic sand flushing device in completing the dredging operation.

9. An electronic device, characterized in that: The method comprises a memory, a processor and a computer program stored in the memory, wherein when the computer program is executed by the processor, the dock dredging method according to any one of claims 1 to 7 is implemented.

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