A hydraulic structure structure safety monitoring and early warning method and system

Abstract

The application discloses a kind of hydraulic structure structure safety monitoring early warning method and system, belong to safety monitoring management technical field.The method includes the following steps: establishing structure object association information, and the historical risk event record information is associated to corresponding structure object;Phase determination library is constructed based on evolution stage information;Determine the target evolution stage where the risk event to be measured is currently located;According to target evolution stage, generate the early warning business execution process containing early warning business execution instruction;The target evolution stage is updated continuously, and the updated stage change process is associated with risk event record information and saved.The application divides risk evolution stage according to the risk state change process in historical risk event record information, and solves the problem that risk event evolution stage cannot be identified in prior art by matching corresponding management disposal measures in combination with the stage where current risk event is located.

Description

Technical Field

[0001] This invention relates to the field of safety monitoring and management technology, and in particular to a method and system for monitoring and early warning of the structural safety of hydraulic structures. Background Technology

[0002] During long-term operation, the structural state of hydraulic structures is affected by changes in operating water levels, engineering scheduling, environmental factors, and long-term service. Risk conditions typically exhibit an evolutionary pattern of gradual formation, continuous development, and expanding impact. To ensure the safe operation of hydraulic structures such as reservoirs, dams, and gates, current engineering management processes typically involve continuous monitoring of structural state changes and generating safety early warning information based on risk assessment results. This assists engineering managers in conducting inspections, maintenance, and operational adjustments.

[0003] In existing technologies, safety monitoring and early warning methods for hydraulic structures typically acquire structural status information, analyze abnormal changes, and determine risk levels or generate early warning information based on the analysis results, thereby identifying potential safety problems. Furthermore, some methods combine historical operational data to assess risk trends, providing a reference for project operation and management.

[0004] However, existing technologies mainly assess the current abnormal state and typically determine the level of risk based on current monitoring results. They lack continuous identification of risk events from their formation, development, and spread, which may result in risk events at different stages of evolution being handled in the same way, making it difficult to accurately match actual management needs. This can easily lead to a mismatch between risk assessment results and the actual operation of the project.

[0005] Therefore, existing methods for safety monitoring and early warning of hydraulic structures still have room for improvement in terms of risk evolution process identification, operational status adaptation, and risk management decision linkage. There is a need for a method for safety monitoring and early warning of hydraulic structures that can determine the risk stage in conjunction with the risk development process and adjust the safety management process according to the changes in different stages. Summary of the Invention

[0006] This application provides a method and system for monitoring and early warning of the structural safety of hydraulic structures, which solves the problem in the prior art that it cannot identify the evolution stage of risk events, resulting in a mismatch between risk assessment results and actual operating status and management and disposal needs. It realizes the determination of the corresponding stage based on the risk development process and automatically matches the management and disposal process, thereby improving the timeliness and adaptability of safety management decisions for hydraulic structures.

[0007] This application provides a method for monitoring and early warning of the structural safety of hydraulic structures, including: acquiring the structural relationships, operation and management status and historical risk event records of hydraulic structures, establishing structural object association information, and associating the historical risk event records with the corresponding structural objects;

[0008] Based on the risk status change process recorded in the historical risk event record information, the historical risk event record information is divided into evolution stage information including the initial formation stage, development stage, diffusion stage and critical stage, and a stage determination library is constructed based on the evolution stage information.

[0009] The system acquires the currently occurring risk events to be tested, matches the abnormal state information and change process information corresponding to the risk events to be tested with the evolution stage information in the stage judgment library, and determines the target evolution stage that the risk events to be tested are currently in.

[0010] Based on the target evolution stage, the corresponding management and disposal measures are matched from the stage judgment library to generate an early warning business execution process that includes early warning business execution instructions;

[0011] Based on the implementation feedback information and the recovery status of the structural object state corresponding to the early warning business execution process, the target evolution stage is continuously updated, and the updated stage change process is associated with and saved with risk event record information.

[0012] Furthermore, the steps for constructing corresponding risk event record information for each structural object include:

[0013] Based on the management level of hydraulic structures, hydraulic structures are divided into basic structural objects, main load-bearing structural objects, auxiliary operational structural objects, and functional impact structural objects.

[0014] Obtain the positional correspondence, force transmission relationship, and functional linkage relationship between various structural objects to form structural object association information;

[0015] In the structure object association information, corresponding risk event record information is created for the structure object that has an abnormal state;

[0016] The risk event record information includes the time point when the anomaly first appeared, the time range during which the anomaly persisted, the spatial expansion process of the anomaly, information on other structural objects that may be affected, and information on management and handling measures implemented in response to the anomaly.

[0017] The risk event record information is associated with the corresponding structural object, serving as the data basis for the subsequent evolution stage division.

[0018] Furthermore, the steps for dividing historical risk event records into evolutionary stages, including initial formation and development stages, include:

[0019] If a structural object first appears in an abnormal state in the historical risk event record information, the historical risk event record information corresponding to that structural object is marked as the initial formation stage.

[0020] In the initial formation stage, the structural object information, abnormal behavior information, and abnormal duration information corresponding to the structural object are recorded.

[0021] The status change process of the historical risk event record information is continuously tracked. When the abnormal status persists and the scope of the abnormal impact expands, or when the associated structural objects undergo synchronous abnormal changes, the historical risk event record information is adjusted from the initial formation stage to the development stage.

[0022] During the development phase, information on the direction of risk expansion, changes in relationships with other structural objects, and changes in the impact on the engineering operation and management process will be added to the record.

[0023] The data records corresponding to the initial formation stage and the development stage are stored in the stage determination library.

[0024] Furthermore, the steps to divide historical risk event records into evolutionary stage information, including diffusion and critical stages, include:

[0025] When the scope of impact corresponding to the historical risk event record information expands from a single structural object to multiple related structural objects, or has already affected the engineering operation and management process, the historical risk event record information will be adjusted from the development stage to the diffusion stage.

[0026] During the diffusion phase, all affected structural objects, the propagation paths between each structural object, and the corresponding management and handling measures are re-determined.

[0027] When the historical risk event record information continues to develop and reaches a state where it is necessary to adjust the current operation and management strategy of hydraulic structures, the historical risk event record information will be adjusted from the diffusion stage to the critical stage.

[0028] During the critical phase, the order of implementation of management and disposal measures is re-determined based on the scope of risk impact and the operational status of the project.

[0029] The data records corresponding to the diffusion stage and the critical stage are stored in the stage determination library.

[0030] Furthermore, the steps to determine the current stage of the target evolution of the risk event to be tested include:

[0031] Check if there are any historical risk event records that correspond to the same structural object as the risk event to be tested;

[0032] If there are historical risk event records corresponding to the same structural object, then compare the correspondence between the risk event to be tested and the historical risk event records in terms of the abnormal occurrence mode, duration, direction of change, scope of impact expansion process, and state change process after the implementation of management and disposal measures.

[0033] The evolutionary stage change process corresponding to the historical risk event record information that meets the matching conditions is selected as the basis for judging the target evolution stage of the risk event to be tested;

[0034] If no historical risk event record information corresponding to the same structural object exists, then historical risk event record information with the same structural type, the same operational stage, and the same impact path will be retrieved for association matching.

[0035] The target evolution stage corresponding to the risk event to be tested is determined based on the matching results.

[0036] Furthermore, based on the target evolution stage, a warning service execution process containing warning service execution instructions is generated. When the target evolution stage is the initial formation stage or the development stage, the steps include:

[0037] When the target evolution stage is the initial formation stage, a first early warning service execution instruction is generated;

[0038] When the target evolution stage is the development stage, a second early warning service execution instruction is generated;

[0039] The first or second early warning service execution instruction is sent to the engineering management execution terminal to drive the corresponding management and disposal measures to be executed, thus constituting the early warning service execution process.

[0040] Furthermore, the steps when the target evolution stage is the diffusion stage or the critical stage include:

[0041] When the target evolution stage is the diffusion stage, a third early warning service execution instruction is generated;

[0042] When the target evolution stage is a critical stage, a fourth early warning service execution instruction is generated;

[0043] The third or fourth early warning service execution instruction is sent to the engineering scheduling and management terminal to drive the adjustment of the corresponding engineering operation and management matters, thus constituting the early warning service execution process.

[0044] Furthermore, the steps for associating and saving the updated phase change process with risk event record information include:

[0045] Record the first occurrence stage, the time node of the stage change, the reason for the stage change, and the management and disposal measures implemented after the stage change in chronological order for the risk event to be tested;

[0046] When a risk event to be tested changes from a low stage to a high stage, update the corresponding risk event record information and adjust the subsequent early warning business execution instructions accordingly.

[0047] When management and handling measures are implemented for a risk event to be tested, and the state of the structural object is restored, the complete risk evolution process is retained, and information such as the recovery time, the management and handling measures implemented, the state change information corresponding to the management and handling measures, and the operational status information of the structural object after restoration is added.

[0048] The updated risk evolution process data will be fed back to the stage determination library.

[0049] This application provides a structural safety monitoring and early warning system for hydraulic structures, which implements a method for monitoring and early warning of structural safety of hydraulic structures, including: a structural object association information establishment module, a stage judgment library construction module, a target evolution stage determination module, an early warning business execution process generation module, and a target evolution stage update module;

[0050] The structural object association information establishment module is used to obtain the structural association relationship, operation and management status and historical risk event record information of hydraulic structures, establish structural object association information, and associate the historical risk event record information with the corresponding structural object.

[0051] The stage determination library construction module is used to divide the historical risk event record information into evolution stage information, including the initial formation stage, development stage, diffusion stage and critical stage, according to the risk state change process recorded in the historical risk event record information, and to construct a stage determination library based on the evolution stage information.

[0052] The target evolution stage determination module is used to acquire the currently occurring risk event to be tested, match the abnormal state information and change process information corresponding to the risk event to be tested with the evolution stage information in the stage determination library, and determine the target evolution stage that the risk event to be tested is currently in.

[0053] The early warning service execution process generation module is used to match the corresponding management and disposal measures from the stage determination library according to the target evolution stage, and generate an early warning service execution process containing early warning service execution instructions.

[0054] The target evolution stage update module is used to continuously update the target evolution stage based on the implementation feedback information and structural object state recovery status corresponding to the early warning business execution process, and to associate and save the updated stage change process with risk event record information.

[0055] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0056] By acquiring the continuous changes in historical risk events of hydraulic structures and dividing the risk status into different evolution stages over time, a risk stage determination basis is established. This allows current risk events to be judged not only based on their current abnormal state, but also by combining the risk formation, development, and diffusion processes to determine their current stage. This avoids risk events in different development states being simply classified into the same risk level, and improves the matching degree between risk assessment and actual operating status.

[0057] Furthermore, in the process of determining the evolution stage of a risk event, the development path of the risk event is continuously tracked by associating the positional relationships, influence relationships, and historical risk changes between related structural objects. This allows changes in the risk status to be associated with the corresponding structural objects, distinguishing between different risk events in the initial change stage and the continuous development stage. This provides a basis for determining subsequent management and disposal measures and reduces the management lag caused by relying solely on current abnormal results for judgment.

[0058] Furthermore, when generating corresponding early warning business execution processes based on the target evolution stages, different management and disposal measures are matched according to different stages, and the risk stage change process is continuously updated in conjunction with the status changes after implementation. This links the risk identification process with the subsequent management process, avoiding the problem of manual judgment and handling after anomalies are discovered in existing technologies. This enables the safety management process of hydraulic structures to adjust management arrangements in advance according to the development of risks, improving the timeliness and continuity of the risk disposal process. Attached Figure Description

[0059] Figure 1 This application provides a flowchart of a method for monitoring and early warning of structural safety of hydraulic structures.

[0060] Figure 2 This application provides a structural schematic diagram of a hydraulic structure safety monitoring and early warning system. Detailed Implementation

[0061] This application provides a method and system for monitoring and early warning of the structural safety of hydraulic structures. It solves the problem in the prior art that the risk warning results cannot be adapted to the subsequent safety management needs because the risk event cannot be identified according to its development process. By acquiring historical risk event records and dividing them into different evolution stages according to the risk status change process, the target evolution stage is determined by combining the abnormal state and change process of the current risk event to be monitored. The corresponding management and disposal measures are matched according to the target evolution stage to generate the early warning business execution process. This realizes safety management decision-making based on the risk evolution process, improves the matching degree between risk warning and actual engineering management needs, and realizes the transformation from passive abnormal response to proactive risk management.

[0062] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0063] like Figure 1 The diagram shown is a flowchart of a method for monitoring and early warning of structural safety of hydraulic structures provided in an embodiment of this application. The method is applied to a system for monitoring and early warning of structural safety of hydraulic structures. The method includes the following steps: obtaining the structural association relationship, operation and management status and historical risk event record information of hydraulic structures; establishing structural object association information including the force transmission relationship and influence path relationship between structural objects; and associating the historical risk event record information with the corresponding structural objects.

[0064] Based on the risk status change process recorded in the historical risk event record information, a time continuity analysis is performed on the historical risk records. According to the evolution law of risk characteristics over time, the historical risk event record information is divided into evolution stage information including the initial formation stage, development stage, diffusion stage, and critical stage. A stage determination library is constructed based on the evolution stage information. The stage determination library stores the management and disposal measure codes corresponding to each evolution stage and the stage-measure mapping relationship.

[0065] The system acquires the currently occurring risk event to be tested, and performs feature matching between the abnormal state information (such as the increase in seepage flow and the opening and closing degree of the crack gauge) and the change process information (such as the duration of the abnormality and the spread rate) corresponding to the risk event to be tested and the evolution stage information in the stage judgment library to determine the target evolution stage of the risk event to be tested. Feature matching includes calculating the weighted similarity between the risk event to be tested and historical risk events in five dimensions: the way the abnormality occurs, the duration of the abnormality, the direction of the abnormality, the process of the expansion of the scope of influence, and the state change after historical treatment. The system selects the evolution stage corresponding to the historical risk event with the highest similarity and not lower than the preset similarity threshold as the target evolution stage.

[0066] Based on the target evolution stage, the corresponding management and disposal measures are matched from the stage judgment library to generate an early warning business execution process that includes early warning business execution instructions;

[0067] If the target evolution stage is the initial formation stage or the development stage, generate control commands for the frequency of on-site monitoring and tracking;

[0068] If the target evolution stage is the diffusion stage or the critical stage, generate linkage control instructions for engineering operation scheduling adjustment, on-site handling and maintenance plans.

[0069] Based on the implementation feedback information and the recovery status of the structural object state corresponding to the early warning business execution process, the target evolution stage is continuously updated, and the updated stage change process is associated with and saved with risk event record information.

[0070] In this embodiment, the structural relationships include the spatial topological location, force transmission path and impact logic of various parts of the project, such as the dam body, dam foundation, spillway, and stilling basin; the operation management status includes real-time and historical water level change sequences, flood discharge flow, water storage operation stage and equipment maintenance status; the historical risk record includes the full process log of abnormal events such as seepage, deformation, and cracking that have occurred in history.

[0071] Furthermore, the steps for constructing corresponding risk event record information for each structural object include:

[0072] Based on the management level of hydraulic structures, hydraulic structures are divided into basic structural objects, main load-bearing structural objects, auxiliary operational structural objects, and functional impact structural objects.

[0073] Obtain the positional correspondence, force transmission relationship, and functional linkage relationship between various structural objects to form structural object association information;

[0074] In the structure object association information, corresponding risk event record information is created for the structure object that has an abnormal state;

[0075] The risk event record information includes the time point when the anomaly first appeared, the time range during which the anomaly persisted, the spatial expansion process of the anomaly, information on other structural objects that may be affected, and information on management and handling measures implemented in response to the anomaly.

[0076] The risk event record information is associated with the corresponding structural object, serving as the data basis for the subsequent evolution stage division.

[0077] In this embodiment, the specific logic for establishing the structural state object and risk event record information includes:

[0078] 1. The four-tiered structure of project management levels:

[0079] Hydraulic structures are divided into four levels with clearly defined functions and stress relationships:

[0080] Basic structural objects: refer to the parts that bear the load of the superstructure and are in direct contact with the geological body, such as the dam foundation anti-seepage wall, the bedrock solidification grouting zone, and the fault fracture zone reinforcement zone;

[0081] Main load-bearing structural objects: refers to structural entities that bear the main loads such as water pressure and sediment pressure, such as gravity dam sections, arch dam bodies, and sluice gate piers;

[0082] Ancillary operational structures: These refer to auxiliary structures that work in conjunction with the project to achieve functions such as water regulation and flood discharge, such as spillway lining slabs, water diversion tunnel linings, and stilling basin bottom slabs.

[0083] Functional impact objects: These refer to business or environmental units that may be directly affected if the risk expands, such as the upstream reservoir inundation line, downstream river channel and village protection zones, and power plant generator unit areas.

[0084] 2. Logical representation and data structure of structural relationships:

[0085] By establishing related data tables in the background database, the force transmission relationships among the above four types of objects are analyzed. Functional linkage For example, when the dam foundation anti-seepage wall in the basic structure fails due to seepage, its force transmission path directly points to the No. 5 dam section in the main load-bearing structure, and its functional linkage path points to the downstream powerhouse in the functionally affected object.

[0086] 3. Field definition and data flow of risk event recording information:

[0087] In the structural status object, for each structural part that experiences excessive monitoring data or abnormal inspection, risk event record information containing the following five core fields is dynamically created:

[0088] Information on the time of the first occurrence of the anomaly: Record the time point accurate to the second;

[0089] Duration range information for the persistence of the anomaly: Record duration data in hours or days. ;

[0090] Information on the process of anomaly expansion and spread in space: Records containing a set of three-dimensional spatial coordinates. and the area affected Or affect volume The value;

[0091] Information about other structural components that may be affected: a list of identifiers for associated structural objects;

[0092] Information on management and handling measures already implemented for the anomaly: including the issued instruction codes, feedback from on-site personnel, and the implementation time.

[0093] The above five pieces of information are assembled into a standard data package and stored in the attribute list of the current structural state object as data input for subsequent feature extraction and stage division.

[0094] Furthermore, the steps for dividing historical risk event records into evolutionary stages, including initial formation and development stages, include:

[0095] If a structural object first appears in an abnormal state in the historical risk event record information, the historical risk event record information corresponding to that structural object is marked as the initial formation stage.

[0096] In the initial formation stage, the structural object information, abnormal behavior information, and abnormal duration information corresponding to the structural object are recorded.

[0097] The status change process of the historical risk event record information is continuously tracked. When the abnormal status persists and the scope of the abnormal impact expands, or when the associated structural objects undergo synchronous abnormal changes, the historical risk event record information is adjusted from the initial formation stage to the development stage.

[0098] During the development phase, information on the direction of risk expansion, changes in relationships with other structural objects, and changes in the impact on the engineering operation and management process will be added to the record.

[0099] The data records corresponding to the initial formation stage and the development stage are stored in the stage determination library.

[0100] Furthermore, the steps to divide historical risk event records into evolutionary stage information, including diffusion and critical stages, include:

[0101] When the scope of impact corresponding to the historical risk event record information expands from a single structural object to multiple related structural objects, or has already affected the engineering operation and management process, the historical risk event record information will be adjusted from the development stage to the diffusion stage.

[0102] During the diffusion phase, all affected structural objects, the propagation paths between each structural object, and the corresponding management and handling measures are re-determined.

[0103] When the historical risk event record information continues to develop and reaches a state where it is necessary to adjust the current operation and management strategy of hydraulic structures, the historical risk event record information will be adjusted from the diffusion stage to the critical stage.

[0104] During the critical phase, the order of implementation of management and disposal measures is re-determined based on the scope of risk impact and the operational status of the project.

[0105] The data records corresponding to the diffusion stage and the critical stage are stored in the stage determination library.

[0106] The stage determination database uses a relational database table structure for storage. Each record corresponds to a complete snapshot of a historical risk event at a certain evolution stage, and includes the following core fields: unique event identifier, structural object identification code, structural object type (basic / main carrier / auxiliary operation / functional impact), evolution stage label (initial formation / development / diffusion / critical), stage start time, stage end time, abnormal manifestation form, abnormal duration, spatial diffusion rate, and risk diffusion direction vector. Risk association enhancement index, change in operational impact, cumulative damage index, code of implemented management and disposal measures, and post-disposal status recovery indicator.

[0107] The stage determination library establishes a joint index using structure object identification codes and evolution stage labels to support rapid matching and retrieval of risk events to be tested; each record is automatically written when a risk event completes an evolution stage transition.

[0108] In this embodiment, the quantitative judgment criteria for dividing historical risk events into four stages—initial formation, development, diffusion, and criticality—include:

[0109] 1. Determining the initial formation stage and the development stage:

[0110] Initial formation stage annotation:

[0111] When the monitoring data corresponding to a certain structural object first exceeds the preset safety threshold (e.g., seepage flow) Greater than the preset seepage flow threshold or change in tilt angle Greater than the preset tilt angle change threshold When a new risk event occurs, it is automatically generated, and its stage status flag is set to the initial formation stage. The name of the object, the abnormal behavior, and the start time are recorded.

[0112] Development stage transition logic:

[0113] Continue to monitor this risk event and set an observation window. For example, after 48 hours, the stage status will be adjusted from the initial formation stage to the development stage when any of the following conditions are met:

[0114] Condition 1 (Spatial Expansion): The affected area is at the second time node. area Subtract the first time point area Then, by dividing by the time difference between the two time points, the spatial diffusion rate can be calculated. The calculation formula is as follows:

[0115] ;

[0116] When the calculated spatial diffusion rate satisfies (in When the preset extension rate threshold is reached, the judgment space range is significantly expanded;

[0117] Condition 2 (Related Synchronization): The monitoring data of at least one adjacent structural object that has a force or functional linkage relationship with the structural object are within the observation time window. More than 15 percent of the synchronization was abnormally offset.

[0118] The critical value for the expansion rate is the maximum allowable expansion rate of the affected area per unit time, and its value is determined based on the structural type and the physical quantity being monitored: for concrete gravity dams, the seepage flow monitoring value is... Dam deformation or crack monitoring Seepage pressure monitoring of earth-rock dams The specific value shall be determined by those skilled in the art based on the historical normal fluctuation range, design safety margin, and the "Design Code for Concrete Gravity Dams" SL319 and the "Design Code for Rolled Earth-Rock Dams" SL274.

[0119] A 15% synchronous anomaly offset refers to a relative deviation of the monitored values ​​of adjacent structural objects from the historical normal baseline value within the observation time window reaching 15% or more, i.e., satisfying the following:

[0120] ;

[0121] in To observe the monitored values ​​within the observation window, This is the historical normal baseline value under the same operating conditions.

[0122] New fields added during the development phase:

[0123] Once a risk event enters the development stage, three evolutionary characteristic parameters are added to the risk event record information, including:

[0124] Risk diffusion direction vector: calculated based on the weighted centroid change direction of the spatial coordinates of the affected measuring points; the calculation formula is:

[0125] ;

[0126] ;

[0127] ;

[0128] In the formula, The risk diffusion direction vector is a composite vector composed of three orthogonal axial components in a three-dimensional rectangular coordinate system. It is used to quantitatively describe the average spatial rate and directional characteristics of risk propagation. These respectively represent the risk diffusion direction vectors. In the three-dimensional rectangular coordinate system of hydraulic structures (BIM (Building Information Modeling) or GIS (Geographic Information System) Axis (e.g., the direction of the dam axis), Axis (e.g., in the direction of water flow) and Components on the axis (e.g., perpendicular to the elevation direction), This indicates the total number of adjacent structural objects that detected abnormalities within a preset time monitoring window, such as 24 hours or 48 hours, in order to meet... Positive integers; This represents the sequential index of each adjacent structural object where an anomaly occurred within the time monitoring window, with a value of [value missing]. ; This refers to the source structure object, that is, the initial abnormal structure object that first triggers the warning threshold in the risk event to be tested. The coordinates of the three-dimensional spatial geometric centroid are obtained by extracting the values ​​from the pre-set structural geometric parameters in the three-dimensional digital twin model; Indicates the first Adjacent structural objects affected by the risk and triggering the anomaly threshold The coordinates of the three-dimensional spatial geometric centroid are also extracted from the three-dimensional digital twin model. They represent the first Adjacent structural objects Relative to the initial abnormal structure object exist axis, shaft and The spatial offset distance along the axis Represents the initial exception structure object The timestamp when the physical monitoring value first exceeded the preset safety threshold; Indicates the first Adjacent structural objects The timestamp when the physical monitoring value first exceeds the preset safety threshold, and the time sequence constraint is met. ; Indicates the first The time delay of an anomaly occurring in each adjacent structural object relative to the initial abnormal structural object, i.e., the time difference, and satisfying the following conditions: .

[0129] Risk correlation enhancement index: assesses the change in the correlation coefficient between the event and surrounding structural objects; the calculation formula is:

[0130] ;

[0131] In the formula, The risk correlation enhancement index is a dimensionless value. When two adjacent structural objects simultaneously experience drastic changes that deviate drastically from their normal state, the index exhibits a quadratic amplification, reflecting a significant enhancement of the risk correlation between the two structural objects. This refers to the real-time physical monitoring value of the first structural object (structural object A) in the associated structural object pair, which is collected by an automated monitoring system (such as a safety monitoring SCADA system) at the current sampling time. This value includes, but is not limited to, strain value, seepage flow, tilt angle, crack opening degree, or uplift pressure value. This indicates the historical normal baseline monitoring value or design standard rated value of the first structural object (structural object A) under the same operating conditions, such as the same reservoir water level and ambient temperature, under historically healthy and risk-free operating conditions. ; This represents the real-time physical monitoring value of the second structural object (structural object B, i.e., the structural object that is physically adjacent to structural object A or has a force transmission association) in the associated structural object pair at the current sampling time; This represents the historical normal baseline monitoring value or design standard rated value of the second structural object (structural object B) under the same operating conditions in a historical healthy and risk-free operating state, and is limited to... ;

[0132] Operational impact change: Record the potential loss assessment value caused by this anomaly to the current water storage or power generation benefits. The calculation formula is:

[0133] ;

[0134] In the formula, This represents the change in the impact of operation, and is a dimensionless, comprehensive weighted evolution value; The higher the value, the greater the impact or damage of the risk event on the overall operation and normal engineering function of the hydraulic structure; This indicates the total number of operational function evaluation indicators included in the overall operational impact assessment system, in order to meet... Positive integers; This represents the index number of the performance evaluation indicator, with a value of [value]. ; Indicates the first The actual real-time measurement value of the operational function evaluation index at the current moment or the evaluation value calculated by the operation scheduling automation system, such as the actual flow deviation of flood discharge, the jamming rate of gate opening and closing mechanism, the proportion of power plant power generation output limitation, the effective reservoir capacity loss rate of flood control, or the delay time of lock navigation. Indicates the first The standard preset target value or rated design benchmark value of the operational function evaluation index under the current scheduling conditions or design procedures, and is limited to... ; Indicates the first The normalized weight coefficients of the operational function evaluation indicators are used to characterize the relative importance of the specific indicator to the consequences of damage to the overall operational function of the hydraulic structure, and must satisfy the constraints. ,and ;

[0135] Among them, four indicators are used for evaluating operational functions: deviation of actual flood discharge ( , ), the proportion of power plant output restricted ( , ), flood control effective reservoir capacity loss rate ( , ), lock navigation delay time ( , For water conservancy projects primarily used for power generation, Adjust to 0.40. , , Reduce proportionally; for water conservancy projects primarily focused on flood control, The value was adjusted to 0.40, and the rest were reduced proportionally. The weights were determined using the entropy weighting method combined with expert scoring: first, the objective weights were calculated based on the information entropy of historical data for each indicator, and then combined with the expert subjective weights at a weighted ratio of 0.5:0.5.

[0136] 2. Determining the diffusion stage and the critical stage:

[0137] Diffusion stage transition logic:

[0138] Continuously monitor risk events in their development phase. When an anomaly crosses the physical boundary of a single structural object, resulting in a number of affected structural objects... When these objects span different engineering management levels (e.g., from basic structural objects to main load-bearing structural objects), or when anomalies force the engineering management department to conduct unplanned shutdown checks, the phase status is adjusted to the diffusion phase.

[0139] During the diffusion phase, topological analysis is used to re-examine all currently affected structural objects, construct the impact propagation path, and derive a list of management and disposal needs for the entire affected area.

[0140] Critical phase transition logic:

[0141] Assess the worsening trend of the risk event during the diffusion phase. Calculate the cumulative damage index of the risk event over its duration. :

[0142] ;

[0143] in, For a moment The abnormal amplitude is obtained by determining the value when the risk event involves only a single monitored physical quantity. ,in For real-time monitoring values, The historical normal baseline value is used; when a risk event involves multiple monitored physical quantities, the normalized anomaly amplitude is first calculated for each physical quantity separately. ( ), then press The maximum normalized anomaly amplitude among all physical quantities is taken as the comprehensive anomaly amplitude; when the reference value of any physical quantity is... At that time, the design monitoring index value of this physical quantity is used as the normalization denominator. After the above normalization, the cumulative damage index... This is a dimensionless time value. As the normal safety threshold, the minimum value among the normalized thresholds corresponding to the designed monitoring index values ​​of each monitored physical quantity is taken. The time when the anomaly occurred. The function is positive, meaning that cumulative damage is only counted when the abnormal amplitude exceeds the safety threshold. When the abnormal amplitude falls back below the threshold, the cumulative damage exponent remains unchanged, thus ensuring the monotonicity of damage accumulation.

[0144] When the cumulative damage index exceeds the preset structural safety reserve threshold (Right now When it is necessary to change the core operation and scheduling strategy of the hydraulic structure (such as forcibly lowering the reservoir water level, opening the gate to release floodwater, and cutting off the dam's power generation load) to prevent substantial damage to the structure, the stage state will be adjusted to the critical stage.

[0145] Once the critical phase is reached, the daily inspection workflow is automatically frozen, the event is elevated to the highest priority, and the sorting rules for all subsequent control measures are reorganized and restructured.

[0146] The structural safety reserve threshold value is the upper limit of cumulative damage that a structural object can withstand under abnormal continuous loading. The value is determined according to the safety level of the hydraulic structure: for Class I structures (large reservoirs and dams, important flood control hubs), it is the cumulative damage value corresponding to 60%-70% of the design ultimate bearing capacity; for Class II structures, it is 70%-80%; and for Class III and below, it is 80%-90%. The specific value is determined by those skilled in the art through structural finite element simulation, material fatigue test data, and the aforementioned design specifications.

[0147] Furthermore, the steps to determine the current stage of the target evolution of the risk event to be tested include:

[0148] Check if there are any historical risk event records that correspond to the same structural object as the risk event to be tested;

[0149] If there are historical risk event records corresponding to the same structural object, then compare the correspondence between the risk event to be tested and the historical risk event records in terms of the abnormal occurrence mode, duration, direction of change, scope of impact expansion process, and state change process after the implementation of management and disposal measures.

[0150] The evolutionary stage change process corresponding to the historical risk event record information that meets the matching conditions is selected as the basis for judging the target evolution stage of the risk event to be tested;

[0151] If no historical risk event record information corresponding to the same structural object exists, then historical risk event record information with the same structural type, the same operational stage, and the same impact path will be retrieved for association matching.

[0152] The target evolution stage corresponding to the risk event to be tested is determined based on the matching results.

[0153] In this embodiment, the steps for determining the evolution stage of the risk event to be tested include:

[0154] 1. Five-dimensional similarity matching based on existing historical records:

[0155] When a risk event to be tested is received First, the database is searched to determine if a set of historical risk events corresponding to the same structural object (such as the bottom slab of the No. 3 spillway) exists. .

[0156] If it exists, a five-dimensional weighted similarity matching algorithm is used to calculate the current risk event to be tested. With various historical events Overall similarity between The calculation formula is as follows:

[0157] ;

[0158] in, For the first The weight coefficients of each feature dimension satisfy:

[0159] ;

[0160] For the first Each dimension of feature similarity sub-function.

[0161] Typical values ​​for the five-dimensional weight coefficients are: similarity weight of anomaly occurrence patterns. Similarity weight of abnormal duration period Similarity weight of abnormal change direction Similarity weights during the process of expanding the scope of influence Weight of similarity of state changes after historical treatment The aforementioned weights were determined using the Analytic Hierarchy Process (AHP): a pairwise comparison judgment matrix of five-dimensional features was constructed. Based on the principle that the contribution of the influence range expansion process to the stage judgment is greatest, engineers in the field of hydraulic structure safety performed pairwise importance comparisons using a 1-9 scale. The eigenvector corresponding to the largest eigenvalue of the judgment matrix was calculated and normalized to obtain the weight allocation. When the consistency ratio of the judgment matrix... The allocation will be accepted at that time. For risk events primarily characterized by abnormal seepage, Adjust to 0.35 Adjusted to 0.15; for risk events primarily involving structural deformation, Adjust to 0.25 Adjust to 0.10.

[0162] Define two scalars , The basic similarity is:

[0163] ;

[0164] in Used to prevent the denominator from being zero. The range of values ​​is .

[0165] The specific definitions of the five-dimensional feature similarity sub-functions are as follows:

[0166] (1) Similarity of the ways in which anomalies occur

[0167] Comparing initial mutation rates The initial mutation rate is the change in the monitored value per unit time before and after the anomaly trigger time:

[0168] ;

[0169] in The time when the preset safety threshold is first triggered by the anomaly. The initial observation duration is 1 hour. , They are respectively Time and The monitored value at any given time. The sub-function is:

[0170]

[0171] in , These represent the initial mutation rates of the risk event to be tested and historical risk events, respectively.

[0172] (2) Similarity of abnormal duration cycles

[0173] Compare the duration of abnormalities This refers to the time interval from the initial trigger of the anomaly to the current judgment time. For historical events, the current judgment time refers to the judgment time of the corresponding evolution stage in the historical event record. The sub-function is:

[0174] ;

[0175] in , These represent the abnormal duration of the risk event to be detected and the historical risk event, respectively. At that time, take .

[0176] (3) Similarity of the direction of abnormal changes

[0177] Compare the net change gradient of the monitored values ​​within the observation window. :

[0178] ;

[0179] in The monitored value at the start of the observation window. The monitored value at the end of the observation window. The observation window duration is 24 hours. The sub-function is calculated according to the following segmentation rules:

[0180] ;

[0181] in , These are the net change gradients for the risk event to be detected and historical risk events, respectively.

[0182] (4) Similarity of the process of expanding the scope of influence

[0183] Compare the aforementioned risk diffusion direction vectors The cosine value of the included angle:

[0184] ;

[0185] in , These are the risk diffusion direction vectors for the risk event to be measured and historical risk events, respectively. The magnitude (Euclidean norm) of the vector, i.e. .when or When there is no definite diffusion direction, take . The range of values ​​is In actual use, take Map it to .

[0186] (5) Similarity of state changes after historical treatment

[0187] Compare the abnormal recovery rate 24 hours after treatment :

[0188] ;

[0189] in This represents the peak value of the abnormal monitoring data prior to the implementation of the control measures. The monitoring values ​​are for the 24 hours following the implementation of the control measures. These are the historical normal baseline monitoring values ​​for this structural object under the same operating conditions. The percentage of an abnormality that recovers from its peak value to a normal value. This indicates a complete recovery to normal. This indicates that recovery has not been completed. The sub-function is:

[0190] ;

[0191] in , These represent the abnormal recovery rates for the risk events to be tested and historical risk events, respectively. When When the denominator is zero (the abnormal peak value equals the normal value, theoretically no action will be triggered), take... If no similar measures have been implemented in historical events, then this dimension has weight. Set the weights to zero, and then renormalize the remaining four dimensions proportionally.

[0192] Set the similarity threshold as If the calculated highest comprehensive similarity Then, the evolution stage corresponding to the historical event with the highest similarity is directly output as the target evolution stage of the risk event to be tested.

[0193] If no historical events with the same structural object exist, expand the search to find historical events that contain the same structural type (such as concrete gravity dam sections), the same operational stage (such as high water level impoundment period), and the same impact path, and perform the above similarity calculation and stage determination.

[0194] 2. Dynamic expansion mechanism for new types of risk events:

[0195] If both the above search and matching results are below the set similarity threshold... If so, the risk event to be tested is marked as a new type of risk event.

[0196] Execute the following automated processing flow:

[0197] (1) Initial stage catch-all determination of novel risk events: For novel risk events without historical matching, they are not directly classified into the initial formation stage, but a rule-based catch-all determination method is adopted: if the event involves only a single structural object, the abnormal duration is less than 48 hours, and no synchronous abnormality occurs in related structural objects, it is tentatively determined as the initial formation stage; if the event involves two or more structural objects, or the abnormal duration exceeds 48 hours, or synchronous abnormality occurs in related structural objects, it is tentatively determined as the development stage; if the event has crossed different engineering management levels (such as spreading from the basic structure to the main load-bearing structure), or has caused unplanned shutdown for inspection, it is tentatively determined as the diffusion stage; if the cumulative damage index of the event has exceeded 80% of the structural safety reserve critical value, or has required adjustment of the core operation scheduling strategy, it is tentatively determined as the critical stage. The above tentative stages are revised according to the actual evolution in subsequent monitoring.

[0198] (2) Automatic generation of blank templates for risk evolution stages: Based on the structural object type (foundation / main load-bearing / auxiliary operation / functional impact), abnormal physical quantity type (seepage / deformation / stress / cracks), and engineering operation stage (water storage period / flood discharge period / maintenance period), the three historical event templates with the closest structural types are retrieved from the stage judgment library, and blank templates are generated by template fusion method: the judgment conditions of each evolution stage in the three historical templates are combined into a union, and the management and disposal measures are combined into an intersection, forming a blank template structure containing four stage judgment condition fields, management and disposal measure fields, and stage transition condition fields.

[0199] (3) Initial sample filling: Fill the real-time data of the current event to be tested (abnormal manifestation, duration, spatial expansion information, and status of associated structural objects) into the corresponding stage of the blank template according to the above provisional stage, as the first real sample of that stage.

[0200] (4) Continuous enrichment of data in subsequent stages: In the subsequent monitoring of new events, the system automatically performs a stage judgment every 24 hours: compares the current event data with the judgment conditions of each stage in the blank template, and when the conditions for the next stage are met, automatically marks the current data as a sample of the new stage and writes it into the template.

[0201] Once the incident has been handled and resolved, the complete evolution process (including the start and end times of each stage, reasons for transition, handling measures, and effects) will be written into the stage judgment database as a complete record, thus enriching the template from "blank" to "complete". Throughout the process, the stage judgment conditions and management handling measures can be manually modified by engineering management personnel with senior engineer titles or above through the back-end review interface, and the modified template version number will automatically increment.

[0202] Furthermore, based on the target evolution stage, a warning service execution process containing warning service execution instructions is generated. When the target evolution stage is the initial formation stage or the development stage, the steps include:

[0203] When the target evolution stage is the initial formation stage, a first early warning service execution instruction is generated, which includes maintaining the current risk event record, increasing the frequency of state observation of the corresponding structural object, establishing subsequent state change observation tasks, and continuously recording the state change process.

[0204] When the target evolution stage is the development stage, a second early warning service execution instruction is generated, which includes expanding the scope of correlation analysis, adding status correlation judgment of affected structural objects, redetermining the scope of risk impact, and adjusting the frequency of risk tracking.

[0205] The first or second early warning service execution instruction is sent to the engineering management execution terminal to drive the corresponding management and disposal measures to be executed, thus constituting the early warning service execution process.

[0206] Furthermore, the steps when the target evolution stage is the diffusion stage or the critical stage include:

[0207] When the target evolution stage is the diffusion stage, a third early warning business execution instruction is generated, which includes establishing a risk impact scope record, associating engineering operation and management matters, adjusting the execution order of management and disposal measures, and forming a set of management tasks within the impact scope;

[0208] When the target evolution stage is a critical stage, a fourth early warning business execution instruction is generated, which includes establishing key risk event records, related engineering operation management matters, related engineering maintenance management matters, and generating special risk disposal process records.

[0209] The third or fourth early warning service execution instruction is sent to the engineering scheduling and management terminal to drive the adjustment of the corresponding engineering operation and management matters, thus constituting the early warning service execution process.

[0210] In this embodiment, based on the determined target evolution stage, the business logic rules corresponding to that stage are automatically retrieved, targeted early warning business instructions are generated, and these instructions are sent to different terminal devices through an interface to drive the execution of the business process. The steps include:

[0211] 1. Command generation in the initial formation and development stage:

[0212] Initial Formation Phase (First Early Warning Operation Instruction):

[0213] When a risk is determined to be in its initial formation stage, a first early warning business instruction is automatically generated, containing the following logic:

[0214] Maintain uninterrupted logging of current risk events;

[0215] Increase the sensor data acquisition frequency of this structural object by 100% (e.g., from once a day to once every twelve hours).

[0216] Establish a follow-up change observation task for this part in the mobile inspection terminal, designate the inspection personnel to complete the on-site verification within 24 hours, and start the background continuous evolution trajectory tracking process.

[0217] The instructions were packaged and sent to the mobile terminals of the on-site inspection personnel.

[0218] Development stage (Second early warning business instruction):

[0219] When the risk is determined to have escalated to the development stage, a second early warning business instruction is automatically generated:

[0220] The spatial radius of the correlation analysis is expanded to two adjacent structural units;

[0221] Trigger the linkage verification calculation of the state of the affected structural objects;

[0222] Based on the latest spread rate, the risk impact assessment range will be reassessed and mapped, and the monitoring frequency will be further increased (e.g., to once every two hours).

[0223] The command is sent to the on-site monitoring management terminal, driving the automatic adjustment of the monitoring plan.

[0224] 2. Command generation during diffusion and critical phases:

[0225] Propagation Phase (Third Early Warning Operation Instruction):

[0226] When the risk is determined to be in the diffusion stage, a third early warning service instruction is automatically generated:

[0227] Automatically generate and lock the risk impact range record table;

[0228] Trigger a coordinated inspection of engineering operation and management matters, and automatically check the flood discharge or water storage plan for the next seven days;

[0229] Adjust the execution priority of relevant management matters, and bring forward the maintenance and repair tasks related to this risk area;

[0230] All job types involved within the scope of risk impact are summarized to form a joint disposal and management task set.

[0231] The instructions are synchronized to the project management and scheduling terminal.

[0232] Critical Phase (Fourth Early Warning Operation Instruction):

[0233] When the risk is determined to have reached a critical stage, the highest-level fourth early warning business instruction is automatically generated:

[0234] Establish a special record of key risk events;

[0235] The reservoir scheduling calculation module is invoked to automatically generate engineering operation scheduling adjustment plans, such as generating scheduling suggestion instructions for emergency water release at the maximum safe flow rate;

[0236] The system integrates emergency repair and maintenance plans for linked projects, automatically matching repair materials and team dispatch schemes.

[0237] Generate a record of the specific risk management process.

[0238] The command is sent directly to the dispatch and management terminal, driving an emergency adjustment of the operation strategy of hydraulic structures.

[0239] Furthermore, the steps for associating and saving the updated phase change process with risk event record information include:

[0240] Record the first occurrence stage, the time node of the stage change, the reason for the stage change, and the management and disposal measures implemented after the stage change in chronological order for the risk event to be tested;

[0241] When a risk event to be tested changes from a low stage to a high stage, update the corresponding risk event record information and adjust the subsequent early warning business execution instructions accordingly.

[0242] When management and handling measures are implemented for a risk event to be tested, and the state of the structural object is restored, the complete risk evolution process is retained, and information such as the recovery time, the management and handling measures implemented, the state change information corresponding to the management and handling measures, and the operational status information of the structural object after restoration is added.

[0243] The updated risk evolution process data will be fed back to the stage determination library.

[0244] like Figure 2 The diagram shown is a structural schematic of a hydraulic structure safety monitoring and early warning system provided in this application embodiment. The hydraulic structure safety monitoring and early warning system provided in this application embodiment includes: a structural object association information establishment module, a stage judgment library construction module, a target evolution stage determination module, an early warning business execution process generation module, and a target evolution stage update module.

[0245] The structural object association information establishment module is used to obtain the structural association relationship, operation and management status and historical risk event record information of hydraulic structures, establish structural object association information, and associate the historical risk event record information with the corresponding structural object.

[0246] The stage determination library construction module is used to divide the historical risk event record information into evolution stage information, including the initial formation stage, development stage, diffusion stage and critical stage, according to the risk state change process recorded in the historical risk event record information, and to construct a stage determination library based on the evolution stage information.

[0247] The target evolution stage determination module is used to acquire the currently occurring risk event to be tested, match the abnormal state information and change process information corresponding to the risk event to be tested with the evolution stage information in the stage determination library, and determine the target evolution stage that the risk event to be tested is currently in.

[0248] The early warning service execution process generation module is used to match the corresponding management and disposal measures from the stage determination library according to the target evolution stage, and generate an early warning service execution process containing early warning service execution instructions.

[0249] The target evolution stage update module is used to continuously update the target evolution stage based on the implementation feedback information and structural object state recovery status corresponding to the early warning business execution process, and to associate and save the updated stage change process with risk event record information.

[0250] In the above formulas, the spatial diffusion rate, risk diffusion direction vector, risk correlation enhancement index, operational impact change, cumulative damage index, and five-dimensional weighted similarity are all analytical expressions with clear mathematical definitions. During calculation, the numerical values ​​of each physical quantity are substituted into the formulas. Empirical parameters in the formulas (including the critical value of the diffusion rate) Structural safety reserve critical value Similarity threshold Five-dimensional weighting coefficients and operational impact weighting coefficient The values ​​of the five-dimensional weight coefficients and similarity judgment thresholds are determined by those skilled in the art based on the structural type, design safety level, historical operation data and relevant industry standards of the hydraulic structures; typical values ​​of the five-dimensional weight coefficients and similarity judgment thresholds are given in this embodiment.

[0251] The above embodiments can be implemented, in whole or in part, by software, hardware, firmware, or any other combination thereof. When implemented using software, the above embodiments can be implemented, in whole or in part, in the form of a computer program product.

[0252] Those skilled in the art will recognize that the modules and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0253] In addition, the functional modules in the various embodiments of this application can be integrated into one processing module, or each module can exist physically separately, or two or more modules can be integrated into one module.

[0254] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0255] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for monitoring and early warning of structural safety in hydraulic structures, characterized in that, Includes the following steps: Obtain the structural relationships, operation and management status, and historical risk event records of hydraulic structures; establish structural object association information; and associate the historical risk event record information with the corresponding structural objects. Based on the risk status change process recorded in the historical risk event record information, the historical risk event record information is divided into evolution stage information including the initial formation stage, development stage, diffusion stage and critical stage, and a stage determination library is constructed based on the evolution stage information. The system acquires the currently occurring risk events to be tested, matches the abnormal state information and change process information corresponding to the risk events to be tested with the information of each evolution stage in the stage determination library, and determines the target evolution stage that the risk events to be tested are currently in. Based on the target evolution stage, the corresponding management and disposal measures are matched from the stage judgment library to generate an early warning business execution process that includes early warning business execution instructions; Based on the implementation feedback information and the recovery status of the structural object state corresponding to the early warning business execution process, the target evolution stage is continuously updated, and the updated stage change process is associated with and saved with risk event record information.

2. The method for monitoring and early warning of structural safety of hydraulic structures as described in claim 1, characterized in that, The steps for constructing corresponding risk event record information for each structural object include: Based on the management level of hydraulic structures, hydraulic structures are divided into basic structural objects, main load-bearing structural objects, auxiliary operational structural objects, and functional impact structural objects. Obtain the positional correspondence, force transmission relationship, and functional linkage relationship between various structural objects to form structural object association information; In the structure object association information, corresponding risk event record information is created for the structure object that has an abnormal state; The risk event record information includes the time point when the anomaly first appeared, the time range during which the anomaly persisted, the spatial expansion process of the anomaly, information on other structural objects that may be affected, and information on management and handling measures implemented in response to the anomaly. The risk event record information is associated with the corresponding structural object, serving as the data basis for the subsequent evolution stage division.

3. The method for monitoring and early warning of structural safety of hydraulic structures as described in claim 1, characterized in that, The steps for dividing historical risk event records into evolutionary stages, including initial formation and development stages, include: If a structural object first appears in an abnormal state in the historical risk event record information, the historical risk event record information corresponding to that structural object is marked as the initial formation stage. In the initial formation stage, the structural object information, abnormal behavior information, and abnormal duration information corresponding to the structural object are recorded. The status change process of the historical risk event record information is continuously tracked. When the abnormal status persists and the scope of the abnormal impact expands, or when the associated structural objects undergo synchronous abnormal changes, the historical risk event record information is adjusted from the initial formation stage to the development stage. During the development phase, information on the direction of risk expansion, changes in relationships with other structural objects, and changes in the impact on the engineering operation and management process will be added to the record. The data records corresponding to the initial formation stage and the development stage are stored in the stage determination library.

4. The method for monitoring and early warning of structural safety of hydraulic structures as described in claim 1, characterized in that, The steps for dividing historical risk event records into evolutionary stages, including diffusion and critical stages, include: When the scope of impact corresponding to the historical risk event record information expands from a single structural object to multiple related structural objects, or has already affected the engineering operation and management process, the historical risk event record information will be adjusted from the development stage to the diffusion stage. During the diffusion phase, all affected structural objects, the propagation paths between each structural object, and the corresponding management and handling measures are re-determined. When the historical risk event record information continues to develop and reaches a state where it is necessary to adjust the current operation and management strategy of hydraulic structures, the historical risk event record information will be adjusted from the diffusion stage to the critical stage. During the critical phase, the order of implementation of management and disposal measures is re-determined based on the scope of risk impact and the operational status of the project. The data records corresponding to the diffusion stage and the critical stage are stored in the stage determination library.

5. The method for monitoring and early warning of structural safety of hydraulic structures as described in claim 1, characterized in that, The steps to determine the current stage of the target evolution of the risk event to be tested include: Check if there are any historical risk event records that correspond to the same structural object as the risk event to be tested; If there are historical risk event records corresponding to the same structural object, then compare the correspondence between the risk event to be tested and the historical risk event records in terms of the abnormal occurrence mode, duration, direction of change, scope of impact expansion process, and state change process after the implementation of management and disposal measures. The evolutionary stage change process corresponding to the historical risk event record information that meets the matching conditions is selected as the basis for judging the target evolution stage of the risk event to be tested; If no historical risk event record information corresponding to the same structural object exists, then historical risk event record information with the same structural type, the same operational stage, and the same impact path will be retrieved for association matching. The target evolution stage corresponding to the risk event to be tested is determined based on the matching results.

6. The method for monitoring and early warning of structural safety of hydraulic structures as described in claim 1, characterized in that, Based on the target evolution stage, a warning service execution process containing warning service execution instructions is generated. When the target evolution stage is the initial formation stage or the development stage, the steps include: When the target evolution stage is the initial formation stage, a first early warning service execution instruction is generated; When the target evolution stage is the development stage, a second early warning service execution instruction is generated; The first or second early warning service execution instruction is sent to the engineering management execution terminal to drive the corresponding management and disposal measures to be executed, thus constituting the early warning service execution process.

7. The method for monitoring and early warning of structural safety of hydraulic structures as described in claim 1, characterized in that, The steps when the target evolution stage is the diffusion stage or the critical stage include: When the target evolution stage is the diffusion stage, a third early warning service execution instruction is generated; When the target evolution stage is a critical stage, a fourth early warning service execution instruction is generated; Sending the third or fourth early warning service execution instruction to the engineering scheduling and management terminal drives the adjustment of the corresponding engineering operation and management matters, thus constituting the early warning service execution process.

8. The method for monitoring and early warning of structural safety of hydraulic structures as described in claim 1, characterized in that, The steps for linking and saving the updated phase change process with risk event record information include: Record the first occurrence stage, the time node of the stage change, the reason for the stage change, and the management and disposal measures implemented after the stage change in chronological order for the risk event to be tested; When a risk event to be tested changes from a low stage to a high stage, update the corresponding risk event record information and adjust the subsequent early warning business execution instructions accordingly. When management and handling measures are implemented for a risk event to be tested, and the state of the structural object is restored, the complete risk evolution process is retained, and information such as the recovery time, the management and handling measures implemented, the state change information corresponding to the management and handling measures, and the operational status information of the structural object after restoration is added. The updated risk evolution process data will be fed back to the stage determination library.

9. A structural safety monitoring and early warning system for hydraulic structures, used to implement the structural safety monitoring and early warning method for hydraulic structures as described in any one of claims 1-8, characterized in that, include: The module includes: a module for establishing structural object association information, a module for building a stage judgment library, a module for determining the target evolution stage, a module for generating the early warning business execution process, and a module for updating the target evolution stage. The structural object association information establishment module is used to obtain the structural association relationship, operation and management status and historical risk event record information of hydraulic structures, establish structural object association information, and associate the historical risk event record information with the corresponding structural objects. The stage determination library construction module is used to divide the historical risk event record information into evolution stage information, including the initial formation stage, development stage, diffusion stage and critical stage, according to the risk status change process recorded in the historical risk event record information, and to construct a stage determination library based on the evolution stage information. The target evolution stage determination module is used to acquire the currently occurring risk event to be tested, match the abnormal state information and change process information corresponding to the risk event to be tested with the evolution stage information in the stage determination library, and determine the target evolution stage that the risk event to be tested is currently in. The early warning service execution process generation module is used to match the corresponding management and disposal measures from the stage determination library according to the target evolution stage, and generate an early warning service execution process containing early warning service execution instructions. The target evolution stage update module is used to continuously update the target evolution stage based on the implementation feedback information and structural object state recovery status corresponding to the early warning business execution process, and to associate and save the updated stage change process with risk event record information.

Images