Method and system for judging consistency of dam engineering structure deformation simulation

CN118536362BActive Publication Date: 2026-08-07CHINA THREE GORGES PROJECTS DEV CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA THREE GORGES PROJECTS DEV CO LTD
Filing Date
2024-06-13
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0006]为解决上述技术上的问题,本发明提供大坝工程结构变形模拟一致性判别方法和系统,能够解决大坝变形监测准确性及模拟分析是否一致的判别问题,为工程安全数字化和智能化管理提供基础支撑

Benefits of technology

一种大坝工程结构变形模拟一致性判别方法和系统,能够解决大坝变形监测准确性及模拟分析是否一致的判别问题,为工程安全数字化和智能化管理提供基础支撑。

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Abstract

The application provides a dam engineering structure deformation simulation consistency discrimination method and system, which comprises deformation monitoring system acquisition, deformation monitoring data acquisition, determination of measurement points and data for consistency discrimination, establishment of a numerical simulation model and simulation analysis, measurement point calculation deformation data acquisition, determination of measurement point deformation consistency discrimination standard, measurement point calculation and monitoring deformation consistency verification, dam structure calculation and monitoring deformation consistency discrimination standard, and dam structure calculation and monitoring deformation consistency verification. The application can solve the problem of dam deformation monitoring accuracy and simulation analysis consistency discrimination, and provides a basic support for engineering safety digitalization and intelligent management.
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Description

Technical Field

[0001] This invention relates to the field of dam construction technology, and mainly to a method and system for consistent determination of structural deformation simulation in dam engineering. Background Technology

[0002] Dam projects are among the most important structures in water conservancy and hydropower engineering, playing a crucial role in flood control, power generation, and water supply. Ensuring the safety of construction and operation is fundamental. Dam construction and operation safety are typically assessed through inspections, safety monitoring, theoretical and numerical analysis, and expert experience, with dam deformation being a key criterion or indicator. However, in reality, relevant regulations and standards for dam projects, especially concrete dams, primarily provide stress control indicators and safety factor requirements, neglecting deformation control requirements. Furthermore, the accuracy of stress monitoring is lower than that of deformation monitoring, making stress-based safety assessments impractical and relying heavily on deformation. This discrepancy between the indicators used for dam safety assessments and the basis provided by regulations and standards hinders operational efficiency in safety analysis and evaluation. Moreover, with the continuous development of digital and intelligent technologies, the requirements for intelligent safety management of dam projects are constantly increasing, and the real-time requirements for engineering performance analysis, diagnosis, and alarms are becoming increasingly stringent. Expert assessment is increasingly unable to meet timeliness requirements, making the adoption of automated methods for real-time analysis and assessment an inevitable trend. Numerical simulation is the primary method used for deformation analysis during the construction and operation of dam projects. However, different methods, software, conditions, or feedback parameters can lead to varying results. To effectively utilize the analysis results, it is essential to verify their validity and reliability. Currently, the main approach both domestically and internationally is to compare the deformation calculation results with actual monitoring data to verify the rationality and effectiveness of the calculations. However, there is currently no unified method or standard for judging the consistency between deformation calculation results and deformation monitoring results. The comparisons are primarily qualitative, which introduces significant subjectivity and arbitrariness, impacting the intelligent construction and operation of engineering safety management.

[0003] Although the paper "Prediction and Early Warning Methods for Short-Term Deformation and Stress of High Arch Dams and Their Engineering Applications" establishes a prediction and early warning model based on monitoring data and full-dam process simulation, proposes to compare the prediction results with the actual monitoring results under the new water level, analyze the rationality and accuracy of the prediction results, and conducts a comparison based on actual engineering projects, it does not propose specific comparison methods, standards and requirements, making it difficult to promote and apply.

[0004] Furthermore, although the paper "A Dam Safety Monitoring and Analysis Method and System Based on Structural Simulation Calculation" discloses a simulation model based on inversion, uses finite element software to comprehensively calculate and analyze the current operation status of the dam, and uses predicted environmental quantities to input into the model to predict, analyze and evaluate the development trend of the dam, it mentions comparing and analyzing the finite element calculated values ​​with the monitoring values, but does not give specific instructions on how to conduct the comparison and analysis.

[0005] Although the paper "Test Method and System for Temperature Simulation Consistency of Hydraulic Concrete Structures" provides a method and system for testing the consistency of temperature simulation, and gives the temperature discrimination method, standard and requirements, this technology cannot be directly applied to dam engineering deformation. The reasons are as follows: First, dam deformation monitoring often has different sources, and its consistency or effectiveness needs to be judged; second, deformation is monitored in three directions, while temperature is a scalar quantity, so corresponding processing methods need to be proposed; third, dam deformation involves the problem of processing the initial value of deformation, which is different from temperature. Summary of the Invention

[0006] To address the aforementioned technical issues, this invention provides a method and system for consistent determination of dam structural deformation simulation. This method can resolve the issues of determining the accuracy of dam deformation monitoring and the consistency of simulation analysis, providing fundamental support for the digital and intelligent management of engineering safety.

[0007] To achieve the above-mentioned technical features, the present invention aims to provide a method for consistent determination of dam engineering structural deformation simulation, characterized by comprising the following steps: S11, Obtain deformation monitoring system: Acquire the target dam project and the deformation monitoring system of the engineering structure, and standardize the relevant location parameters of the deformation measuring points; S12, Obtain deformation monitoring data: Obtain deformation monitoring data from deformation measuring points in S11; S13, Determine the measurement points and data used for consistency judgment: By comparing and analyzing the deformation monitoring data in S12, the measuring points and deformation data of the measuring points used for deformation consistency judgment are determined, and this dataset is marked as D1. S14, Establish a numerical simulation model and perform simulation analysis: Based on data on the dam's structure, materials, environmental conditions, and construction and operation processes, a numerical simulation model of the dam was established, and the dam's deformation was simulated and analyzed. S15, Obtain deformation data from measuring points: Based on the time and space starting points of deformation monitoring at the measuring points, the deformation calculated at the measuring points is transformed to obtain the deformation data that can be used to determine the measuring points. This dataset is labeled as D2. S16, Determine the criteria for judging the consistency of deformation at measuring points: Based on the actual situation of dam engineering, a standard and index for judging the consistency of deformation at measuring points are proposed. The dataset of this standard is labeled as D3. S17, Consistency verification of measurement point calculation and deformation monitoring: According to the discrimination index and standard in S6, based on the deformation data D2 calculated from the measuring point and the monitored deformation data D1, the processing result data D4 corresponding to the discrimination index is obtained and compared with the discrimination standard data D3 to determine whether the measurement point calculation and monitoring are consistent. When the evaluation index is within the range of the discrimination standard, the deformation calculated from the measuring point and the monitored deformation are consistent; otherwise, the calculated deformation and the monitored deformation are inconsistent, and the discrimination result data is marked as D5. S18, Standard for Judging the Consistency between Dam Structure Calculation and Monitoring Deformation: Based on the actual situation of dam engineering, a standard and index for judging the consistency of structural calculation and deformation monitoring are proposed. The standard dataset is labeled as D6. S19, Consistency verification of dam structure calculation and monitoring deformation: According to the discrimination index and standard in S8, based on the consistency discrimination result data D5 of the measuring point, the processing result data D7 corresponding to the consistency discrimination index of structural calculation and monitored deformation is obtained, and compared with the discrimination standard data D6 to determine whether the structural calculation and monitored deformation are consistent. When the discrimination index is within the discrimination standard range, the calculated deformation and the monitored deformation of the structure are consistent; otherwise, the calculated deformation and the monitored deformation are inconsistent, and the discrimination result is marked as D8.

[0008] The deformation monitoring system in S11 includes internal deformation monitoring, external deformation monitoring, and satellite remote sensing monitoring.

[0009] The deformation monitoring data in S12 includes the dam's deformation along the river to the west, vertical deformation, transverse deformation along the river, and transverse joint opening.

[0010] In S13, the deformation measuring points are preferentially internal deformation measuring points, followed by external deformation measuring points, and then satellite remote sensing points. When there are transverse seam opening measurement points, they should be used in conjunction with internal deformation measurement points, external deformation measurement points or satellite remote sensing points. Deformation data should prioritize deformation along the river or deformation with large incremental values. Abnormal measurement points in the deformation monitoring data in S13 will not be used.

[0011] The numerical simulation model in S14 should be able to provide the measurement points used for consistency judgment and the deformation calculation data.

[0012] The simulation analysis in S14 uses the finite element simulation analysis method.

[0013] The discrimination index in S16 can be a single index or a comprehensive index; Single-indicators use the absolute or relative error of deformation in a certain direction at a certain moment, or the average value of the absolute difference between the measured and monitored deformation in a certain direction over a certain period of time; comprehensive indicators mainly use deformation along the river, supplemented by vertical and transverse deformation, to establish binary or multi-dimensional discrimination indicators. Consistency criteria include absolute error criteria and relative error criteria; The absolute error standard is set to a fixed value; the relative error standard is set to a fixed value.

[0014] The discrimination index in S18 uses the absolute value or proportion of the number of consistent measurement points, as well as the correlation function of inconsistent measurement points.

[0015] In S18, the arch dam, as a statically indeterminate structure, is judged by the absolute value or proportion of the number of consistent measuring points; gravity dams and earth-rock dams need to be judged by a combination of the absolute value or proportion of the number of consistent measuring points and the correlation function of inconsistent measuring points.

[0016] The discrimination criteria in S18 include the absolute value or percentage value of the number of measurement points and the value of the correlation function of inconsistent measurement points.

[0017] A consistency discrimination system for dam engineering structure deformation simulation, the system being used to implement the method, comprising: The deformation monitoring system acquisition module is used to acquire data on the deformation monitoring system of the target dam project and its structure. The deformation monitoring data acquisition module is used to acquire deformation monitoring data of the measuring points in the above deformation monitoring system; The consistency judgment measurement point data acquisition module is used to acquire the measurement points and measurement point deformation data used for consistency judgment of dam engineering structure deformation; The numerical simulation analysis module is used to establish a numerical simulation model of the dam project based on the dam's structure, materials, environmental conditions, and construction and operation data, and to simulate and analyze the dam's deformation. The deformation data acquisition module is used to convert the deformation of the measuring points according to the time start and spatial start of the deformation monitoring, and to obtain the deformation data that can be judged by the measuring points. The module for judging the consistency of deformation at measuring points is used to propose indicators and standards for judging the consistency of deformation at measuring points in combination with the actual situation of dam engineering, and to verify whether the calculation and monitoring of measuring points are consistent. The dam engineering structural deformation consistency judgment module is used to propose consistency judgment indicators and standards between structural calculation and monitoring deformation based on the actual situation of dam engineering, and to determine whether the structural calculation and monitoring deformation are consistent.

[0018] The present invention has the following beneficial effects: A method and system for judging the consistency of dam structural deformation simulation can solve the problem of judging the accuracy of dam deformation monitoring and the consistency of simulation analysis, providing basic support for the digital and intelligent management of engineering safety. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a flowchart of the method of the present invention.

[0021] Figure 2 This is a typical dam engineering deformation monitoring system.

[0022] Figure 3 This is a schematic diagram of the deformation curves along the river at different measuring points in the dam project of the embodiment.

[0023] Figure 4 This is a schematic diagram of the finite element model of the dam engineering structure in the example.

[0024] Figure 5 This is a schematic diagram comparing the deformation calculated by measuring points with the deformation monitored in the embodiment.

[0025] Figure 6 This is a system composition diagram of the present invention.

[0026] In the diagram, 1 represents the dam; 2 represents the gallery; 3 represents the dam joint; 4 represents the positive and negative sag monitoring system; 5 represents the static leveling monitoring system; 6 represents the joint opening monitoring system; 7 represents the appearance deformation monitoring system; and 8 represents the foundation. Detailed Implementation

[0027] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0028] Example 1: See Figure 1 A method for consistent determination of dam engineering structural deformation simulation, characterized by the following steps: S11: Data acquired by the deformation monitoring system; Acquire the target dam project and the deformation monitoring system of the engineering structure, and standardize the relevant location parameters of the deformation measuring points; The deformation monitoring system includes internal deformation monitoring, external deformation monitoring, and satellite remote sensing monitoring systems.

[0029] S12: Acquire deformation monitoring data; Obtain deformation monitoring data from the aforementioned deformation measuring points, including the dam's deformation along the west bank of the river, vertical deformation, transverse deformation, and transverse joint opening.

[0030] S13: Determine the measurement points and data used for consistency judgment; By comparing and analyzing the deformation monitoring data, the measuring points and deformation data of the measuring points used for deformation consistency judgment were determined. This dataset is labeled as D1.

[0031] Preferably, internal deformation measurement points are used first, followed by external deformation measurement points, and then satellite remote sensing points. When transverse seam opening measurement points are available, they are used in conjunction with the aforementioned deformation measurement points. Deformation data should preferably be based on deformation along the river or deformation with a large increment.

[0032] Furthermore, abnormal measurement points in deformation monitoring data will not be used, such as those with severe data loss or irregular data fluctuations.

[0033] S14: Establish a numerical simulation model and perform simulation analysis; Based on data on the dam's structure, materials, environmental conditions, and construction and operation processes, a numerical simulation model of the dam was established, and the dam's deformation was simulated and analyzed.

[0034] Further numerical simulation models should be able to provide the measurement points used for consistency judgment and the deformation data for calculation.

[0035] Preferably, the finite element simulation analysis method is used for simulation.

[0036] S15: Obtain deformation data from measuring points; Based on the time and spatial starting points of deformation monitoring at the measuring points, the deformation calculated at the measuring points is transformed to obtain the deformation data that can be used to determine the measuring points. This dataset is labeled as D2.

[0037] S16: Determine the criteria for judging the consistency of deformation at measuring points; Based on the actual situation of dam engineering, a standard and index for judging the consistency of deformation at measuring points are proposed. The standard dataset is labeled as D3.

[0038] Furthermore, the discrimination indicators can be single indicators or comprehensive indicators.

[0039] Preferably, the single indicator can be the absolute error or relative error of the deformation in a certain direction at a certain moment, or the average value of the absolute value of the difference between the deformation in a certain direction calculated and monitored over a certain period of time; the comprehensive indicator can be based on deformation along the river, supplemented by deformation in the vertical and transverse directions, to establish a binary or multi-dimensional discrimination index.

[0040] Furthermore, the consistency criteria include absolute error criteria and relative error criteria.

[0041] Preferably, the absolute error standard can be a fixed value, such as 1.0 mm or more for dams with a height of 100m or more; or a relative value, such as 5% of the maximum deformation increment during the entire monitoring process of the dam, where the maximum deformation increment is 80 mm, then 4 mm is used.

[0042] Preferably, the relative error is set to a fixed value, such as no more than 3% or 5%.

[0043] S17: Consistency verification of measurement point calculation and deformation monitoring; According to the discrimination index and standard in S6, based on the deformation data D2 calculated from the measuring point and the monitored deformation data D1, the processed result data D4 corresponding to the discrimination index is obtained and compared with the discrimination standard data D3 to determine whether the measured point calculation and monitoring are consistent. When the evaluation index is within the range of the discrimination standard, the measured point calculated deformation and the monitored deformation are consistent; otherwise, the calculated deformation and the monitored deformation are inconsistent, and the discrimination result data is marked as D5.

[0044] S18: Standard for judging the consistency of dam structural calculation and monitoring deformation; Based on the actual situation of dam engineering, a standard and index for judging the consistency between structural calculation and deformation monitoring are proposed. The dataset for this standard is labeled as D6. Furthermore, the discrimination index can be the absolute value or proportion of the number of consistent measurement points, as well as the correlation function of inconsistent measurement points.

[0045] Preferably, for arch dams, which are statically indeterminate structures, the absolute value or proportion of the number of consistent measuring points can be used for discrimination; for gravity dams and earth-rock dams, the absolute value or proportion of the number of consistent measuring points and the correlation function of inconsistent measuring points need to be used for discrimination.

[0046] Furthermore, the discrimination criteria include the absolute value or proportion of the number of measurement points and the correlation function value of inconsistent measurement points.

[0047] S19: Consistency verification of dam structural calculation and monitoring deformation; According to the discrimination index and standard in S8, based on the consistency discrimination result data D5 of the measurement point, the processed result data D7 corresponding to the consistency discrimination index of structural calculation and monitored deformation is obtained, and compared with the discrimination standard data D6 to determine whether the structural calculation and monitored deformation are consistent. When the discrimination index is within the range of the discrimination standard, the structural calculation deformation and the monitored deformation are consistent; otherwise, the calculation and monitored deformation are inconsistent, and the discrimination result is marked as D8. Example 2: Figure 1 This is a flowchart of the method of the present invention, as shown below. Figure 1 The method described above can be used for consistency determination of dam engineering structure deformation simulation, and includes the following steps: S31: Deformation monitoring system data acquisition for dam engineering. A certain dam is 270m high and is a concrete dam. To accurately simulate the deformation of the dam engineering, it is first necessary to acquire the basic information for comparative verification of calculation simulations, namely the deformation monitoring system. Figure 2This diagram illustrates the components of a typical dam engineering deformation monitoring system, which generally includes forward and inverted deformation monitoring, static leveling deformation monitoring, joint opening monitoring, and external deformation monitoring. Each deformation monitoring point is located according to a unified coordinate definition rule, and the position of each point can be given in (x, y, z) coordinate form, providing a basis for calculating the location of the monitoring points in simulation analysis.

[0048] S32: Acquire deformation monitoring data. Based on the above monitoring system, acquire deformation monitoring data of all measuring points through collection and transmission. This generally includes the dam's deformation along the river (Y), vertical deformation (Z), transverse deformation (X), and joint opening deformation (O), etc. The deformation data of the measuring points can be represented as (X, Y, Z).

[0049] S33: Determine the measuring points and data used for consistency judgment. Analyze and compare the above monitoring systems and data to determine the measuring points and deformation data of the measuring points used for deformation consistency judgment. This dataset is labeled D1. Preferably, the accuracy of positive and negative deformation monitoring is generally high, while the accuracy of appearance deformation is generally low, and satellite remote sensing has the lowest accuracy. Therefore, positive and negative deformation measuring point data are preferred. When there are transverse seam opening measuring points, they are used in conjunction with the above deformation measuring points.

[0050] The deformation distribution patterns and magnitudes of dam projects differ along the river direction, vertically, and transversely. Generally, the deformation Y along the river is larger under the action of upstream water pressure and is given priority. The deformation Z in the vertical direction and X in the transverse direction are relatively smaller and can be used as auxiliary factors. Figure 3 This is a schematic diagram of the deformation curves along the river at different measuring points of the dam project.

[0051] Furthermore, deformation monitoring is affected by various factors on site, and there may be problems such as serious data loss and irregular data fluctuations. If these problems cannot be effectively repaired, such measuring points will not be used.

[0052] S34: Establish a numerical simulation model and perform simulation analysis. Based on the dam's structure, materials, environmental conditions, and construction and operation data, establish a numerical simulation model of the dam project and perform simulation analysis on the dam's deformation. This numerical simulation model should be able to provide the locations of the measuring points used for consistency judgment in S33 and the calculated deformation data at the corresponding locations.

[0053] Preferably, the numerical simulation can be performed using the finite element simulation analysis method, and the coordinate definitions of the finite element mesh in the longitudinal, vertical, and transverse directions are consistent with those in S31. Figure 4 This is a schematic diagram of the finite element model of the dam structure.

[0054] S35: Obtain deformation data for measuring points. Based on the time and spatial starting points of deformation monitoring at the measuring points, convert the deformation calculations for each measuring point. The spatial deformation direction is consistent with the monitored deformation direction, making the calculated deformation comparable to the monitored deformation. Obtain the deformation data for measuring points that can be used for identification. This dataset is labeled D2.

[0055] S36: Determine the criteria for judging the consistency of deformation at measuring points. Based on the actual situation of dam engineering, propose indicators and standards for judging the consistency of deformation at measuring points. The dataset for this standard is labeled D3.

[0056] Furthermore, the discrimination indicators can be single indicators or comprehensive indicators.

[0057] Preferably, the singleness index can be the absolute error or relative error of the deformation in a certain direction at a certain moment, such as the absolute error δY=Ym-Yc, where Ym is the monitored value of deformation along the river and Yc is the calculated value of deformation along the river, and the relative error ψY=(Ym-Yc) / Ym; or the average value of the absolute value of the difference between the calculated and monitored deformation in a certain direction over a certain period of time. Comprehensive indicators can be based primarily on deformation along the river, supplemented by deformation along the vertical and transverse river directions, to establish binary or multivariate discrimination indicators, such as: δa=│Ym-Yc│+α│Zm-Zc│+β│Xm-Xc│, where α and β are coefficients between 0 and 1; Furthermore, the consistency criteria include absolute error criteria and relative error criteria.

[0058] Preferably, the absolute error standard can be a fixed value. The maximum deformation increment of the 270m high dam is about 20mm, and the absolute error is 5% of the maximum deformation increment, i.e., 1.0mm.

[0059] Preferably, the relative error is taken as a fixed value, and the relative error of the dam is taken as 5%.

[0060] S37: Consistency Verification of Deformation Calculation and Monitoring at Measurement Points. Based on the discrimination index and standard in S36, and using the calculated deformation data D2 and the monitored deformation data D1, obtain the processed result data D4 corresponding to the discrimination index. Compare this data with the discrimination standard data D3 to determine whether the calculated and monitored deformations at the measurement points are consistent. If the evaluation index is within the discrimination standard range, the calculated deformation and the monitored deformation are consistent; otherwise, if they are inconsistent, the discrimination result data is marked as D5.

[0061] Figure 5 This is a schematic diagram comparing the calculated deformation and the monitored deformation at a certain measuring point. There are a total of 14 measuring points, of which 11 have an absolute error of less than 1.0 mm and 3 have an absolute error of more than 1.0 mm. In Table 1, 0 indicates consistency and 1 indicates inconsistency.

[0062] Table 1. Measurement Point Consistency Table Quantity Survey Line 1 Measurement Line 2 Measurement line 3 Measurement point 1 0 1 0 Measurement point 2 0 1 0 Measurement point 3 0 0 0 Measurement point 4 0 0 0 Measurement point 5 0 1 / S38: Standard for Judging the Consistency between Dam Structural Calculation and Monitoring Deformation. Based on the actual situation of dam engineering, a standard and index for judging the consistency between structural calculation and monitoring deformation are proposed. The dataset for this standard is labeled D6.

[0063] Furthermore, the discrimination index adopts the proportion of consistent measurement points and the correlation function of inconsistent measurement points.

[0064] Preferably, the correlation function of the inconsistent measurement points of the dam can be defined as: ψ=∑ i ∑ i W ij ; Among them W ij =1, when the region i and j When all measurement points are inconsistent and adjacent; W ij =0, others.

[0065] The proportion of consistent measurement points for the dam is 78.57%, and the correlation function of inconsistent measurement points is 2.

[0066] Furthermore, the criteria include the absolute value or percentage of the number of measuring points and the correlation function value of inconsistent measuring points. The structural deformation consistency criterion for this dam project is 80%, and the correlation function value of inconsistent measuring points is set to 3.

[0067] S39: Consistency verification of dam structure calculation and monitoring deformation.

[0068] According to the discrimination index and standard in S38, based on the consistency discrimination result data D5 of the measuring points, the processed result data D7 corresponding to the consistency discrimination index between structural calculation and monitored deformation is obtained and compared with the discrimination standard data D6 to determine whether the structural calculation and monitored deformation are consistent. From S38, it can be seen that the proportion of consistent measuring points on the dam is 78.57%, which is less than the discrimination standard of 80%. The correlation function of inconsistent measuring points is 2, which is less than the discrimination standard 3. Based on the comprehensive evaluation, the structural calculation deformation and monitored deformation are inconsistent.

[0069] Example 3: The second aspect of this invention is to provide a consistency discrimination system for dam engineering structure deformation simulation, comprising 7 modules, see... Figure 6 They are: S41: Deformation monitoring system acquisition module, used to acquire the deformation monitoring system of the target dam project and its structure; S42: Deformation monitoring data acquisition module, used to acquire deformation monitoring data of measuring points in the above deformation monitoring system; S43: Consistency Judgment Measurement Point Data Acquisition Module, used to acquire the measurement points and measurement point deformation data used for consistency judgment of dam engineering structural deformation; S44: Numerical simulation analysis module, used to establish a numerical simulation model of the dam project based on the dam's structure, materials, environmental conditions, and construction and operation data, and to simulate and analyze the dam's deformation; S45: Deformation data acquisition module, used to convert the deformation of the measuring point according to the time start and spatial start of the deformation monitoring of the measuring point, and obtain the deformation data that can be used to determine the measuring point; S46: Measuring point deformation consistency judgment module, used to propose measuring point deformation consistency judgment indicators and standards in combination with the actual dam project, and to verify whether the measuring point calculation and monitoring are consistent; S47: Dam Engineering Structural Deformation Consistency Judgment Module, used to combine the actual situation of dam engineering, propose consistency judgment indicators and standards between structural calculation and monitoring deformation, and determine whether the structural calculation and monitoring deformation are consistent.

Claims

1. A method for consistent determination of structural deformation simulation in dam engineering, characterized in that, Includes the following steps: S11, Obtain deformation monitoring system: Acquire the target dam project and the deformation monitoring system of the engineering structure, and standardize the relevant location parameters of the deformation measuring points; S12, Obtain deformation monitoring data: Obtain deformation monitoring data from deformation measuring points in S11; S13, Determine the measurement points and data used for consistency judgment: By comparing and analyzing the deformation monitoring data in S12, the measuring points and deformation data of the measuring points used for deformation consistency judgment are determined, and the dataset composed of the selected measuring point deformation data is labeled as D1. S14, Establish a numerical simulation model and perform simulation analysis: Based on data on the dam's structure, materials, environmental conditions, and construction and operation processes, a numerical simulation model of the dam was established, and the dam deformation was simulated and analyzed to obtain the simulation calculation results of the dam deformation. S15, Obtain deformation data from measuring points: Extract the calculated deformation of the corresponding measuring point from the dam deformation simulation calculation results. According to the time start and spatial start of the deformation monitoring of the measuring point, the calculated deformation of the measuring point is transformed to obtain the identifiable calculated deformation data of the measuring point. The dataset composed of the transformed identifiable calculated deformation data is labeled as D2. S16, Determine the criteria for judging the consistency of deformation at measuring points: Based on the actual situation of dam engineering, a standard for judging the consistency of deformation at measuring points is proposed, and the standard dataset composed of the standard for judging the consistency of deformation at measuring points is labeled as D3; S17, Consistency verification of measurement point calculation and deformation monitoring: According to the discrimination index and standard in S16, based on the deformation dataset D2 calculated by measuring point and the deformation dataset D1 monitored by monitoring point, the index calculation result data D4 corresponding to the discrimination index is calculated. The index calculation result data D4 is compared with the discrimination standard dataset D3 to determine whether the deformation calculated by measuring point and the deformation monitored by monitoring point are consistent. When the indicator calculation result is within the discrimination standard range, the calculated deformation of the measuring point is consistent with the monitored deformation; otherwise, they are inconsistent, and the dataset composed of the measuring point-level consistency discrimination results is marked as D5. S18, Standard for Judging the Consistency between Dam Structure Calculation and Monitoring Deformation: Based on the actual situation of dam engineering, a standard and index for judging the consistency between structural calculation and deformation monitoring are proposed. The standard dataset composed of the standard and index for judging the consistency between structural calculation and deformation monitoring is labeled as D6. S19, Consistency verification of dam structure calculation and monitoring deformation: According to the discrimination index and standard in S18, based on the measurement point level consistency discrimination result dataset D5, the index calculation result data D7 corresponding to the structure level consistency discrimination index is calculated. The index calculation result data D7 is compared with the discrimination standard dataset D6 to determine whether the calculated deformation of the structure is consistent with the monitored deformation. When the index calculation result is within the judgment standard range, the calculated structural deformation is consistent with the monitored deformation; otherwise, the structural consistency judgment result is marked as D8. The discrimination index in S18 is the number of consistent measurement points or the proportion of consistent measurement points, as well as the correlation function of inconsistent measurement points; The inconsistency measurement point correlation function is used to characterize the spatial clustering degree of inconsistency measurement points. The calculation method is as follows: traverse all measurement point pairs, and increment the count by 1 when both measurement points are inconsistent measurement points and are spatially adjacent; otherwise, do not count. The sum of the final count values ​​is the function value.

2. The consistency judgment method for dam engineering structure deformation simulation according to claim 1, characterized in that: The deformation monitoring system in S11 includes internal deformation monitoring, external deformation monitoring, and satellite remote sensing monitoring.

3. The consistency judgment method for dam engineering structure deformation simulation according to claim 1, characterized in that: The deformation monitoring data in S12 includes the dam's deformation along the river, vertical deformation, transverse deformation, and transverse joint opening.

4. The method for consistent determination of dam engineering structural deformation simulation according to claim 1, characterized in that: In S13, the deformation measuring points are preferentially internal deformation measuring points, followed by external deformation measuring points, and then satellite remote sensing points. When there are transverse seam opening measurement points, they should be used in conjunction with internal deformation measurement points, external deformation measurement points or satellite remote sensing points. Deformation data should be preferentially adopted based on deformation along the river direction. Abnormal measurement points in the deformation monitoring data in S13 will not be used.

5. The consistency judgment method for dam engineering structure deformation simulation according to claim 4, characterized in that: The numerical simulation model in S14 should be able to provide the measurement points used for consistency judgment and the calculated deformation data. The simulation analysis in S14 uses the finite element simulation analysis method.

6. The consistency judgment method for dam engineering structure deformation simulation according to claim 5, characterized in that: The discrimination index in S16 can be a single index or a comprehensive index; The single-indicator uses the absolute or relative error of the deformation in a certain direction at a certain moment, or the average value of the absolute value of the difference between the measured and monitored deformation in a certain direction over a certain period of time; the comprehensive indicator mainly uses deformation along the river, supplemented by vertical and transverse deformation, to establish a multi-dimensional discrimination index. Consistency criteria include absolute error criteria and relative error criteria; The absolute error standard is taken as a fixed value; The relative error standard is set to a fixed value.

7. The consistency judgment method for dam engineering structure deformation simulation according to claim 1, characterized in that: The arch dam in S18 is a statically indeterminate structure, and is determined by the number of consistent measuring points or the proportion of consistent measuring points. Gravity dams and earth-rock dams need to be judged by comprehensively using the number or proportion of consistent measuring points and the correlation function of inconsistent measuring points.

8. The method for consistent determination of dam engineering structural deformation simulation according to claim 7, characterized in that: The discrimination criteria in S18 include the standard of the number or proportion of measurement points and the standard of the correlation function of inconsistent measurement points.

9. A consistency judgment system for dam engineering structural deformation simulation, characterized in that, The system is used to implement the method according to any one of claims 1-8, comprising: The deformation monitoring system acquisition module is used to acquire data on the deformation monitoring system of the target dam project and its structure. The deformation monitoring data acquisition module is used to acquire deformation monitoring data of the measuring points in the above deformation monitoring system; The consistency judgment measurement point data acquisition module is used to acquire the measurement points and measurement point deformation data used for consistency judgment of dam engineering structure deformation; The numerical simulation analysis module is used to establish a numerical simulation model of the dam project based on the dam's structure, materials, environmental conditions, and construction and operation data, and to simulate and analyze the dam's deformation. The deformation data acquisition module is used to convert the deformation of the measuring points according to the time start and spatial start of the deformation monitoring, and to obtain the deformation data that can be judged by the measuring points. The module for judging the consistency of deformation at measuring points is used to propose indicators and standards for judging the consistency of deformation at measuring points in combination with the actual situation of dam engineering, and to verify whether the calculation and monitoring of measuring points are consistent. The dam engineering structural deformation consistency judgment module is used to propose consistency judgment indicators and standards between structural calculation and monitoring deformation based on the actual situation of dam engineering, and to determine whether the structural calculation and monitoring deformation are consistent.

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  • Method for predicting dam deformation extreme value based on grey model

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