Comprehensive diagnosis system and method for operation state of water diversion project

Abstract

The invention discloses a comprehensive diagnosis system and method for the operation state of a water diversion project. The system comprises a monitoring subsystem, an inspection subsystem, a detection subsystem and a diagnosis subsystem. The diagnosis method comprises the following steps: S1, dividing a water diversion project into a plurality of paragraphs, and classifying buildings in each paragraph; s2, calculating a risk index of each paragraph; s3, according to the risk indexes of all the paragraphs, the operation state of the whole water diversion project is obtained. In the diagnosis result fusion process, the method analyzes the operation state of the single building of the water diversion project, and the method provided by the invention can give consideration to the influence of the minimum unit and the scale and number of the single building in the project on the final project integrity state diagnosis aiming at the problem that the types and number of the buildings of the water diversion project are many. And the influence of external dynamic factors on the project is avoided, so that the operation state of the whole water transfer project can be comprehensively and accurately diagnosed.

Description

Technical Field

[0001] The present invention belongs to the technical field of water conservancy project safety monitoring, and in particular relates to a comprehensive diagnosis system and method for the operation status of a water diversion and regulation project. Background Art

[0002] The water diversion project is a complex system with long lines and many types and numbers of buildings. The failure of any node may affect the safety of water transmission. It is difficult to fully cover the channels and other water transmission buildings in the evaluation of operational status. There are also many problems such as the heavy workload of operational performance diagnosis and the lack of coordination in the evaluation and classification standards between different buildings.

[0003] At present, the diagnosis of engineering safety status is mainly based on engineering safety inspection, safety monitoring and safety testing. Traditional water diversion and regulation engineering safety status diagnosis methods usually judge specific problems or single nodes separately, and often only focus on performance indicators in a specific aspect. However, for the water diversion and regulation project as a whole, the safety status is usually the result of the joint action of multiple internal and external factors and multiple buildings, which is reflected in many aspects. It is difficult to effectively judge the safety status of the project based on the diagnosis results of a single node. One-sided information collection will lead to misjudgment of the overall health status of the project. When conducting the overall operation status diagnosis of the water diversion and regulation project, it is often difficult to take into account the operation status of all internal buildings and the changing operating conditions along the line. Therefore, it is necessary to propose a method to make full use of the multi-source information to conduct a comprehensive evaluation of the engineering status, so as to overcome the limitations of single-item and single-unit diagnosis and provide a more reliable tool for health management and performance optimization of water diversion and regulation projects. Summary of the invention

[0004] The purpose of the present invention is to provide a comprehensive diagnosis system and method for the operational status of water diversion and regulation projects, so as to solve the technical problem that the diagnostic methods for the safety status of water diversion and regulation projects in the prior art usually judge specific problems or single nodes separately, often only focus on the performance indicators of a specific aspect, and it is difficult to effectively judge the safety status of the project based only on the diagnosis results of a single node, and one-sided information collection will lead to misjudgment of the overall health status of the project.

[0005] In order to solve the above technical problems, the present invention adopts the following solutions: The comprehensive diagnostic system for the operational status of water diversion and regulation projects includes a monitoring subsystem, an inspection subsystem, a detection subsystem and a diagnostic subsystem.

[0006] The monitoring subsystem includes a data acquisition module, a first data storage module, and a first data analysis module. Among them, the data acquisition module includes various monitoring instruments set in the water diversion project, which is used to collect data of different monitoring items of various buildings in real time, as well as environmental data. The first data storage module is used to store the monitoring data collected by the data acquisition module. The first data analysis module is used to evaluate the safety status of different monitoring items of each individual building in the water diversion project.

[0007] The inspection subsystem includes a patrol inspection interface, a second data storage module, and a second data analysis module. Among them, the patrol inspection interface is used to input the data obtained by monitoring fixed parts of the water diversion project site through cameras and the relevant records of problems found in manual inspections into the system. The second data storage module is used to store the images captured by the cameras and the project situation obtained by manual inspections. The second data analysis module is used to evaluate the safety status of on-site inspection items of each individual building in the water diversion project.

[0008] The detection subsystem includes a data entry interface, a third data storage module, and a third data analysis module. Among them, the data entry interface is used to input the special inspection result data of the water diversion project into the system. The third data storage module is used to store the historical inspection result data. The third data analysis module is used to evaluate the safety status of special inspection items of each individual building in the water diversion project.

[0009] The diagnosis subsystem includes a risk analysis module and a comprehensive analysis module. The risk analysis module is used to evaluate the risk index of each section of the water diversion project according to the safety status of each individual building. The comprehensive analysis module comprehensively evaluates the operation state of the entire water diversion project according to the risk indexes of all sections.

[0010] The comprehensive diagnosis method for the operation state of the water diversion project, based on the above-mentioned comprehensive diagnosis system for the operation state of the water diversion project, specifically includes the following steps: Step S1: Divide the water diversion project into multiple sections and classify the buildings in each section. Step S2: Calculate the risk index of each section, which specifically includes the following steps: Step S2.1: For the same building within the same section, conduct the following safety status evaluation; Step S2.1.1: Through the data acquisition module in the monitoring subsystem, collect the monitoring item data of each building in this section in real time. The first data analysis module diagnoses the safety status of each monitoring item of this individual building and calculates its monitoring information risk index. Step S2.1.2: Through the on-site inspection data input by the patrol inspection interface of the inspection subsystem, the second data analysis module diagnoses the safety status of the on-site inspection items of this individual building and calculates its inspection information risk index. Step S2.1.3: For the special inspection data of the single building entered through the data entry interface of the detection subsystem, the third data analysis module diagnoses the safety status of the special inspection items of the single building and calculates its detection information risk index. Step S2.1.4: The risk analysis module of the diagnosis subsystem calculates the risk index of the single building according to the three sub-risk indexes obtained in Steps S2.1.1 - S2.1.3 and the dynamic index risk index. Step S2.2: Repeat Step S2.1 to obtain the risk indexes of other single buildings in the same type of buildings within the same paragraph. The risk analysis module of the diagnosis subsystem obtains the risk index of the type of buildings within the same paragraph according to the risk indexes of all single buildings of the same type. Step S2.3: Similarly, repeat Steps S2.1 and S2.2 to obtain the risk indexes of other types of buildings within the paragraph. Step S2.4: The risk analysis module of the diagnosis subsystem obtains the risk index of the paragraph according to the risk indexes of each type of building within the paragraph and the corresponding weights. Step S3: The comprehensive analysis module of the diagnosis subsystem obtains the operating behavior of the entire water diversion project according to the risk indexes of all paragraphs.

[0011] For further optimization, in Step S2.1.1, multiple monitoring points are set on each single building, and corresponding monitoring instruments are set at each monitoring point. The original data of the corresponding monitoring items are obtained through the monitoring instruments. The first data analysis module obtains the prediction data through the variable dimension fractal method and corrects the prediction data with the Markov chain; and, the prediction data of each monitoring point is normalized and then data fusion is performed to obtain the risk index of the single monitoring item of the building.

[0012] Calculating the prediction data by the variable dimension fractal method, correcting the prediction data with the Markov chain, and normalizing the prediction data of each monitoring point are prior arts and the applicant's previous research. For details, see Reference 1: Ye Wei, etc. Variable Dimension Fractal Model Modified by Markov Chain and Its Application [J]. South-to-North Water Diversion and Water Science & Technology, 2016, 14(06): 111 - 115; Reference 2: Ye Wei, etc. Application of Weighted Optimized D - S Evidence Theory in Dam Safety Evaluation [J]. Water Resources and Power, 2016, 34(06): 96 - 99. Therefore, this part of the content will not be elaborated. The solution of this application is a further research result based on the existing solution technology.

[0013] For further optimization, after normalizing the prediction data, data fusion is performed, specifically as follows: 1), Data normalization and basic probability assignment: First, normalize the prediction data to the interval [0, 1] to obtain the normalized result. u x ; Then, according to the normalized value u x , assign basic probabilities to the four risk levels according to the following trapezoidal membership function. The risk level set is {V1, V2, V3, V4} = {safe, relatively safe, relatively unsafe, unsafe}, specifically: (1); In the above formula, y represents the y-th evidence source.

[0014] 2), Evidence fusion rule and model: According to the Dempster - Shafer fusion rule, fuse the assigned data. The fusion rule is as follows: (2); In the above formula: represents the conflict coefficient. When k ≠ 1, evidence fusion can be performed; when k < 1, there is a conflict between the evidences and fusion cannot be performed; y, y + s represent different evidence sources; i, j ∈ [1, 4].

[0015] Use the fusion rule to iterate M(V j ) to obtain the basic credibility assignment vector M to which the evaluation object belongs: V j (3); If there are evidence sources, then iterate n times. n - 1 times.

[0016] 3), Evaluate the risk index according to the fused result. The evaluation criteria are as follows: When M ( V 1) > 0.5, the risk index is: ; When M ( V 2) > 0.5, the risk index is: ; When M ( V 3) > 0.5, the risk index is: ; When M ( V 4) > 0.5, the risk index is: ; Among them, .

[0017] For further optimization, in step S2.1.2, the information obtained by the inspection subsystem through camera shooting and manual inspection is all qualitative information. The obtained qualitative information is evaluated according to the following quantitative judgment criteria to obtain the corresponding inspection information risk index. For different buildings, corresponding quantitative judgment criteria for the inspection information risk index are formulated according to the on-site inspection situation, as follows: I. For channel projects: 1. If any of the following situations exist, the inspection information risk index is (0, 0.25]: 1) The structure is intact, the technical condition is good, and it meets the design use requirements; 2) There are no uneven settlements, cracks, sliding or seepage phenomena in the channel body; 3) The anti-seepage and drainage facilities are complete and effective; 4) There are no uneven settlements, misaligned joints or leakage phenomena at the joints between the channel and the buildings crossing or spanning the channel.

[0018] 2. If any of the following situations exist, the inspection information risk index is (0.25, 0.5]: 1) The structure is partially damaged but still can operate normally; 2) There are slight uneven settlements, cracks, sliding or seepage phenomena in the channel body; 3) The anti-seepage and drainage facilities are relatively complete and mostly effective; 4) There are slight uneven settlements, misaligned joints and slight leakage phenomena at the joints between the channel and the buildings crossing or spanning the channel.

[0019] 3. If any of the following situations exist, the inspection information risk index is (0.5, 0.75]: 1) The structure is damaged in many places and can barely operate normally; 2) There are obvious uneven settlements, cracks, sliding or seepage phenomena in the channel body; 3) The anti-seepage and drainage facilities are incomplete and partially effective; 4) There are obvious uneven settlements, misaligned joints and leakage phenomena at the joints between the channel and the buildings crossing or spanning the channel.

[0020] 4. If any of the following situations exist, the inspection information risk index is (0.75, 1]: 1) The structure is severely damaged and it is difficult to operate normally; 2) There are severe uneven settlements, cracks, sliding or seepage phenomena in the channel body; 3) The anti-seepage and drainage facilities are lacking; 4) There are severe uneven settlements, misaligned joints and severe leakage phenomena at the joints between the channel and the buildings crossing or spanning the channel.

[0021] II. For pumping station projects: 1. If any of the following situations exist, the inspection information risk index is (0, 0.25]: 1) The pump station project structure is complete, the technical condition is good, and it meets the design service requirements; 2) There is no erosion or collapse on the slope protection of the intake sump, the bottom protection filter layer is intact; the trash rack meets the requirements; the decontamination equipment is complete; 3) There is no settlement on the retaining wall of the outlet sump, no cracks on the bottom slab, and good connection with the main canal; 4) The pipeline flow channel is stable without water leakage or air accumulation, and the pipeline water passing efficiency is high; 5) There is no abnormal deformation or settlement on the pump house foundation, which can ensure the safe operation of the main and auxiliary machine systems.

[0022] 2. If any of the following situations exist, the inspection information risk index is (0.25, 0.5]: 1) The pump station project has partial damage but can still operate normally; 2) There is slight siltation in the intake sump, local landslide on the slope protection, and the bottom protection filter is intact; 3) There is slight settlement on the retaining wall of the outlet sump and a small amount of leakage; 4) There is water leakage in the outlet pipeline, cracks appear in the anchor block, but it can still operate normally after short-term repair; 5) There is uneven settlement in the pump house, and the main generator sets, etc. need to be reinstalled and debugged.

[0023] 3. If any of the following situations exist, the inspection information risk index is (0.5, 0.75]: 1) The pump station project has multiple damages and can barely operate normally; 2) The intake sump has heavy siltation, landslide on the slope protection, and poor effect of the bottom protection filter; 3) There is obvious settlement on the retaining wall of the outlet sump and a large amount of leakage; 4) There is water leakage in the outlet pipeline, cracks appear in the anchor block, but it can barely operate normally after short-term repair; 5) There is uneven settlement in the pump house, and the main generator sets, etc. need to be reinstalled and debugged, and it is difficult to repair in the short term.

[0024] 4. If any of the following situations exist, the inspection information risk index is (0.75, 1]: 1) The pump station project is severely damaged and cannot operate; 2) The intake sump has severe siltation, landslide on the slope protection, and the bottom protection filter fails; 3) There is severe settlement on the retaining wall of the outlet sump and a large amount of leakage; 4) The water leakage in the outlet pipeline is serious, large-scale cracks appear in the anchor block, and it cannot be repaired in a short time; 5) There is uneven settlement in the pump house, the main generator sets, etc. need to be replaced, and the project needs to be de-risked and reinforced.

[0025] III. For the sluice and pump station project: 1. If any of the following situations exist, the inspection information risk index is (0, 0.25]: 1) The sluice project structure is complete, the technical condition is good, and it meets the design service requirements; 2) There is no settlement on the retaining wall and wing wall, no cracks or siltation on the bottom slab, and good connection with the main canal; 3) There is no abnormal deformation or settlement on the sluice chamber foundation, which can ensure the normal opening of the gate.

[0026] 2. If any of the following situations exists, the inspection information risk index is (0.25, 0.5]: 1) The sluice project has partial damage but can still operate normally; 2) The retaining wall and wing wall have slight settlement and a small amount of leakage; there are a small number of cracks on the bottom slab and a small amount of siltation; 3) The sluice chamber has uneven settlement, affecting the normal operation of the gate.

[0027] 3. If any of the following situations exists, the inspection information risk index is (0.5, 0.75]: 1) The sluice project has multiple damages and cannot meet the requirements for safe operation; 2) The retaining wall and wing wall have obvious settlement and a large leakage volume; there are more cracks on the bottom slab and a large siltation volume; 3) The sluice chamber has uneven settlement, and the gate needs to be reinstalled and debugged, and it is difficult to repair in the short term.

[0028] 4. If any of the following situations exists, the inspection information risk index is (0.75, 1]: 1) The sluice project is severely damaged and cannot operate safely; 2) The retaining wall and wing wall have severe settlement and a large number of cracks on the bottom slab; 3) The foundation of the sluice chamber has severe settlement and the gate groove is severely deformed.

[0029] IV. For the water conveyance inverted siphon project or the culvert project: 1. If any of the following situations exists, the inspection information risk index is (0, 0.25]: 1) The structure is intact, the technical condition is good, and it meets the design service requirements; 2) The retaining wall and wing wall have no settlement, the bottom slab has no cracks or siltation, and it is well connected with the main canal; 3) There is no uneven settlement or step at the inlet and outlet sections, the structural joints are closed; the water stop is intact and there is no leakage; the backfill behind the wall has no settlement or loss.

[0030] 2. If any of the following situations exists, the inspection information risk index is (0.25, 0.5]: 1) The structure has partial damage but can still operate normally; 2) The retaining wall and wing wall have slight settlement and a small amount of leakage; there are a small number of cracks on the bottom slab and a small amount of siltation; 3) There is local uneven settlement and step at the inlet and outlet sections, and some structural joints are open; the water stop is locally damaged and there is leakage; the backfill behind the wall has local settlement and loss.

[0031] 3. If any of the following situations exists, the inspection information risk index is (0.5, 0.75]: 1) The structure has multiple damages and can barely operate normally; 2) The retaining wall and wing wall have obvious settlement and a large leakage volume; there are more cracks on the bottom slab and a large siltation volume; 3) There is obvious uneven settlement and step at the inlet and outlet sections, the structural joints are open; the water stop fails and the leakage volume is large; the backfill behind the wall has settlement and loss.

[0032] 4. If any of the following situations occurs, the inspection information risk index is (0.75, 1]: 1) The structure is severely damaged and difficult to operate normally; 2) The retaining wall and wing wall have severe settlement, and there are a large number of cracks in the bottom slab; 3) There is severe uneven settlement and offset at the inlet and outlet sections, the structure joints are opened; the water stop fails and the leakage is large; there is large-scale settlement and loss of the backfill soil behind the wall.

[0033] For further optimization, in step S2.1.3, the special inspection data of the building is the quality inspection data of various building materials, including concrete compressive strength, carbonation depth, steel bar protection layer thickness and steel bar corrosion degree, all of which are quantitative information; the processing method of the inspection data is the same as that of the monitoring data. By comparing and analyzing the measured value with the design value or the specification value, the inspection information risk index is determined.

[0034] For further optimization, in step S2.1.4, the above process reflects the self-behavior of the water diversion project, but the operation of the project is also affected by external factors. Therefore, it is necessary to consider the impact of the external environment on the operation behavior of the project. Since there are differences in the environments and operating conditions of the water diversion project and its internal buildings, the influencing factors are determined in combination with the actual situation of the project in specific applications, and an index system including monitoring, inspection, patrol, and dynamic factors is established.

[0035] The risk index of the static factor is determined according to the results of monitoring, inspection and patrol. The determination of the risk index of the dynamic index is as follows: Due to the dynamic changes of the external environment indicators, the risk index of the dynamic index corresponding to each dynamic influencing factor is based on the data of three states: the design value, the measured value during the operation period, and the highest risk value during the operation process. Then: (4); (5); In the above formula: R ( o gl ) represents the risk index of the l th dynamic index, β erf represents the coefficient related to the error function, erf (x) is the error function, λ gl is the standard value of the risk quantification of the l th risk index in the g th state. According to the needs, the calculation method is formulated in combination with the actual situation of the project. There are differences in the calculation methods of different risk indexes; γ gl represents the weight of the l th risk index in the g th state, βis the influence coefficient, that is, the degree of influence of the dynamic index on the building, and usually 0.5 can be taken.

[0036] For further optimization, when there are multiple buildings of the same type in a paragraph, the risk index of this type of building is determined according to the K value method, specifically as follows: (6); In the above formula, A a is a the risk index of the type of building, B b is within the paragraph a the risk index of a single building b in the type of building, b ∈ [1, N], where N represents the number of buildings of this type within this paragraph a and d is the influence coefficient.

[0037] For further optimization, the risk index of the paragraph is calculated as follows: (7); In the above formula: P c is the risk index of paragraph c, r c,a is the weight of type a buildings within paragraph c, a ∈ [1, G], where G represents that there are G types of buildings in paragraph c.

[0038] For further optimization, in step 3, the overall safety state of the water diversion project is evaluated according to the risk index and weight of each paragraph, specifically as follows: Step S3.1: Calculate the weight of each paragraph D c , and the weight of the paragraph is related to the number of each type of building and the channel length in this paragraph; Step S3.1.1: Calculate the weight of the channel within the paragraph: (8); In the above formula: r c,q is the weight of the channel within paragraph c; r ， q is the weight of the channel during risk integration within this paragraph; L z is the total length of the channels of the water diversion project; L c is the length of the channel within this paragraph.

[0039] Step S3.1.2: Calculate the weight of each type of building within the paragraph: (9); In the above formula:r c,a The weight of type-a buildings in paragraph c a i = 1, 2, 3, 4, representing cross buildings, drainage buildings, water withdrawal buildings, and adjacent crossing buildings respectively; r b The weight of a single building b when integrating the risk index within this paragraph; N z The total number of this type of building in the water diversion and regulation project; N a The number of type-a buildings in this paragraph.

[0040] Step S3.1.3: The paragraph weight is the sum of the weights of the channels and buildings within this paragraph, that is: (10); Step S3.2: The overall risk index of the water diversion and regulation project is calculated according to the following formula: (11); In the above formula: Y is the overall risk index of the water diversion and regulation project, p c is the paragraph risk index, c ∈ [1, R], and R represents the total number of paragraphs of the entire water diversion and regulation project.

[0041] Compared with the prior art, the present invention has the following beneficial effects: Aiming at the problems of numerous types and large quantities of buildings in the water diversion and regulation project, the present invention proposes a method for comprehensively evaluating the health status of the water diversion and regulation project by integrating various engineering operation information. During the process of fusing the diagnosis results, this method analyzes the operation states of different items of each individual building in various types of buildings in the water diversion and regulation project, and can take into account the influence of the smallest unit, the scale and quantity of individual buildings in the project on the overall diagnosis of the project state, as well as the influence of external dynamic factors on the project, ensuring a comprehensive and accurate diagnosis of the operation state of the entire water diversion project. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 Schematic diagram of the comprehensive diagnosis system for the operation state of the water diversion and regulation project; Figure 2 Flow chart of the comprehensive diagnosis method for the operation state of the water diversion and regulation project; Figure 3 Original data fractal curve of the deformation monitoring points of the inverted siphon building in Example 2; Figure 4 Deformation prediction value result of measuring point GL01; Figure 5 Deformation corrected prediction value result of measuring point GL01; Figure 6Photos of on-site safety inspection of the inverted siphon structure. Specific implementation manners

[0043] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0044] Embodiment 1: As Figure 1 shown, the comprehensive diagnosis system for the operation status of the water diversion and regulation project includes a monitoring subsystem, an inspection subsystem, a detection subsystem and a diagnosis subsystem.

[0045] The monitoring subsystem includes a data acquisition module, a first data storage module and a first data analysis module. Among them, the data acquisition module includes various monitoring instruments set in the water diversion and regulation project, which are used to collect data of different monitoring items of various buildings in real time, as well as environmental data. The first data storage module is used to store the monitoring data collected by the data acquisition module. The first data analysis module is used to evaluate the safety status of different monitoring items of each single building in the water diversion and regulation project.

[0046] The inspection subsystem includes a patrol inspection interface, a second data storage module and a second data analysis module. Among them, the patrol inspection interface is used to input the data obtained by monitoring fixed points at the water diversion and regulation project site through a camera, as well as the relevant records of problems found in manual inspections into the system. The second data storage module is used to store the images captured by the camera and the project conditions obtained by manual inspections. The second data analysis module is used to evaluate the safety status of the on-site inspection items of each single building in the water diversion and regulation project.

[0047] The detection subsystem includes a data entry interface, a third data storage module and a third data analysis module. Among them, the data entry interface is used to input the special inspection result data of the water diversion and regulation project into the system. The third data storage module is used to store the previous inspection result data. The third data analysis module is used to evaluate the safety status of the special inspection items of each single building in the water diversion and regulation project.

[0048] The diagnosis subsystem includes a risk analysis module and a comprehensive analysis module. The risk analysis module is used to evaluate the risk index of each section of the water diversion and regulation project according to the safety status of each single building. The comprehensive analysis module comprehensively evaluates the operation status of the entire water diversion and regulation project according to the risk indexes of all sections.

[0049] Embodiment 2: As Figure 2 shown, the comprehensive diagnosis method for the operation status of the water diversion and regulation project specifically includes the following steps: Step S1: Taking a certain water diversion project as an example, divide the water diversion project into 60 paragraphs and classify the buildings in each paragraph; Step S2: Calculate the risk index of each paragraph, which specifically includes the following steps: Step S2.1: For the same building within the same paragraph, conduct the following safety status assessment; Step S2.1.1: Through the data acquisition module in the monitoring subsystem, collect the monitoring project data of each building in this paragraph in real time. The first data analysis module diagnoses the safety status of each monitoring project of the single building and calculates its monitoring risk index.

[0050] In this embodiment, taking the inverted siphon building in a certain water diversion project as an example, the building is provided with 8 deformation measurement points, and the fractal curves of the original deformation data of each measurement point are as Figure 3 , among which for the GL01 measurement point, the prediction results of the variable dimension fractal from April 19th to 30th are as Figure 4 .

[0051] Use the Markov chain to calculate and analyze the 4-step transition probability matrix for the data of the GL01 measurement point: ; .

[0052] Obtain the corrected prediction results for the subsequent 4 days (May 1st to 5th) of the measurement point GL01 as shown in Figure 5 .

[0053] Use the same method to calculate the predicted values of the remaining monitoring points.

[0054] Normalize the predicted data, and the results are shown in Table 1.

[0055] Table 1 Results of data normalization .

[0056] Calculate the basic probability assignment according to formula (1), and the results are shown in Table 2.

[0057] Table 2 Results of calculating the basic probability assignment .

[0058] Perform data fusion according to formulas (2) to (3), and the results are shown in Table 3.

[0059] Table 3 Results of data fusion

[0060] Similarly, calculate the basic probability assignments of the remaining monitoring projects and perform fusion, and the results are shown in Table 4.

[0061] Table 4 Data fusion results of other monitoring items

[0062] According to the risk index level judgment criterion evaluated by the quality function, the risk index of the monitoring information is determined to be 0.118.

[0063] Step S2.1.2: Through the on-site inspection data entered through the patrol inspection interface of the inspection subsystem, the second data analysis module diagnoses the safety status of the on-site inspection items of the single building and calculates its inspection information risk index.

[0064] In this embodiment, on-site safety inspections are carried out on the inverted siphon project building in a certain water diversion project. According to the on-site inspection results, there are no uneven settlements, staggered platforms, and water stop cracks in the wing walls at the inlet and outlet connections of the inverted siphon. There are no cracks, uneven settlements, etc. in the gate chambers of the inlet maintenance gate and the outlet control gate. There are cracks at the connection between the traffic bridge and the road surface. The water flow pattern at the inlet maintenance gate is normal. The inlet and outlet wrappers use masonry slope protection, and there are no cracks, settlements, landslides, holes, wetting, seepage, and scouring on the outer slopes of the inlet and outlet connections and the wrappers. The drainage ditch is not silted or damaged. There is no settlement, damage, and scouring damage to the top protection project of the pipe section, no settlement, seepage, etc. on the ground, and no damage to the upstream and downstream protection projects. As Figure 6 shown, where Figure 6 (a) in it is the wrapper protection drawing, and (b) is the upstream river drawing.

[0065] According to the quantitative processing standard of the inspection information of the water conveyance inverted siphon project, the risk index of the on-site inspection information of the inverted siphon is determined to be 0.8.

[0066] Step S2.1.3: Through the special inspection data of the single building entered through the data entry interface of the detection subsystem, the third data analysis module diagnoses the safety status of the special inspection items of the single building and calculates its detection information risk index.

[0067] In this embodiment, safety inspections are carried out on the inverted siphon project building in a certain water diversion project, and the results are shown in Tables 5, 6, and 7.

[0068] Table 5 Detection results of concrete compressive strength of the inverted siphon project

[0069] Table 6 Detection results of the main reinforcement cover thickness of the concrete structure of the inverted siphon project

[0070] Table 7 Detection results of corrosion potential

[0071] Using the same method as in step S2.1.1, according to the information fusion method, calculate the information fusion result of concrete quality inspection, as shown in Table 8.

[0072] Table 8 Inspection Information Fusion Result

[0073] According to the risk index level judgment standard of quality function evaluation, determine that the risk index of inspection information is 0.04.

[0074] Step S2.1.4: The analysis module of the diagnosis subsystem calculates the risk index of the single building based on the three sub-risk indexes obtained in steps S2.1.1 - S2.1.3 and the risk index of dynamic indicators.

[0075] In this embodiment, heavy rain floods, pipe body burial depth, and siltation and blockage of flood are used as dynamic risk factors, that is, dynamic indicators. When calculating the risk index of dynamic indicators, it is necessary to first standardize the measured data to be evaluated to obtain the standard value of risk quantification of the l th dynamic indicator under the g th state. λ gl . Specifically: (1) Calculate the standard value of risk quantification of heavy rain floods: Based on the flood frequency change law under different conditions, construct the index quantification standard under the condition of super-standard flood, λ 1l The calculation is as follows: (12); In the formula: Q is the real-time peak flood discharge, Q 设 and Q 校 are the design and checking floods of the building respectively.

[0076] (2) Calculate the standard value of risk quantification of pipe body burial depth: When the calculated scouring depth is less than the minimum safety burial depth specified in the code, scouring damage is basically unlikely to occur. When the pipe body burial depth is insufficient, scouring damage is very likely to occur. Standardize the burial depth height, then λ 2l The calculation is as follows: (13); In the formula: h is the current burial depth, h 设 is the design burial depth, h c the minimum safety burial depth specified in the code.

[0077] (3) Calculate the standard value of the quantification of the risk of siltation and flood obstruction: If there are floating objects in the river channel, such as branches and garbage, the river channel may be silted up, resulting in insufficient flow capacity of the building and decreased flood discharge capacity, thus causing the water level to rise and triggering risks. Quantify the water level height, then λ 3l The calculation is as follows: (14) In the formula: H is the current water level, H 设 is the design water level, H 顶高 is the elevation of the canal embankment top.

[0078] Calculate the index quantification value according to formulas (12)-(14), and obtain the dynamic index risk index from formula (4), as shown in Table 9.

[0079] Table 9 Dynamic index risk index

[0080] The weights of the three dynamic risk indicators can be calculated by methods such as the entropy weight method and the expert scoring method. In this embodiment, according to the expert scoring method, the weights of rainstorm flood, pipe body burial depth, and siltation and flood obstruction are determined to be 0.51, 0.18, and 0.31 respectively, then the calculated dynamic index risk index is 0.358. The weights of monitoring, inspection, detection, and external variables are 0.42, 0.13, 0.15, and 0.30, and the calculated risk index of the inverted siphon project building is 0.27.

[0081] Step S2.2: Repeat Step S2.1 to obtain the risk index of each other single building in the same type of buildings within the same paragraph. The analysis module of the comprehensive diagnosis subsystem obtains the risk index of the same type of buildings based on the risk indices of all single buildings of the same type.

[0082] Step S2.3: Similarly, repeat Step S2.1 and Step S2.2 to obtain the risk index of other types of buildings within this paragraph.

[0083] In this embodiment, calculate the risk index of the remaining buildings of this water diversion project. Taking a certain paragraph of this water diversion project as an example, calculate the paragraph risk index. The total length of this paragraph is 25859m, and there is 1 water conveyance building, 13 drainage buildings, 1 water discharge sluice, and 25 cross buildings within the interval. Determine the risk indices of different types of buildings within the paragraph according to formula (6), and the results are shown in Table 10.

[0084] Table 10 Risk indices of different types of buildings within the paragraph

[0085] Step S2.4: The analysis module of the comprehensive diagnosis subsystem obtains the risk index of this paragraph according to the risk indices of each category within this paragraph and their corresponding weights.

[0086] In this embodiment, the weights of various types of buildings are determined by the expert scoring method. The weight of the building passing through, spanning, or adjacent to other buildings is determined to be 0.121, the weight of the water conveyance building is 0.479, the weight of the channel is 0.176, the weight of the drainage building is 0.157, and the weight of the water discharge building is 0.067. It is calculated that the risk index of this paragraph is 0.24, as shown in Table 11.

[0087] Table 11 Calculation results of the risk index of the paragraph

[0088] Step S3: According to the risk indices of all paragraphs, obtain the operating state of the entire water diversion and regulation project.

[0089] There are 60 paragraphs in this water diversion and regulation project. The weights of the corresponding paragraphs are calculated according to Formulas (7) to (10), and the calculation results are shown in Table 12.

[0090] Table 12 Calculation results of the comprehensive risk index of the operating state of the water diversion and regulation project

[0091] According to Formula (11), the risk index of this water diversion and regulation project is calculated to be 0.345, and the corresponding operating state safety level is relatively safe.

[0092] Taking the ideal embodiment of the present invention described above as a revelation, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention patent. The technical scope of this invention patent is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. Comprehensive diagnostic system for the operational behavior of water diversion projects, characterized in that, It includes a monitoring subsystem, an inspection subsystem, a detection subsystem, and a diagnosis subsystem; The monitoring subsystem includes a data acquisition module, a first data storage module, and a first data analysis module; among them, the data acquisition module includes a variety of monitoring instruments set in the water diversion project, which is used to collect data of different monitoring items of various buildings in real time, as well as environmental data; the first data storage module is used to store the monitoring data collected by the data acquisition module; the first data analysis module is used to evaluate the safety status of different monitoring items of each single building in the water diversion project; The inspection subsystem includes a patrol inspection interface, a second data storage module, and a second data analysis module; among them, the patrol inspection interface is used to input the data obtained by monitoring the fixed-point parts of the water diversion project site through a camera, as well as the relevant records of the problems found in the manual inspection into the system; the second data storage module is used to store the images taken by the camera and the project situation obtained by the manual inspection, and the second data analysis module is used to evaluate the safety status of the on-site inspection items of each single building in the water diversion project; The detection subsystem includes a data entry interface, a third data storage module, and a third data analysis module; among them, the data entry interface is used to input the special detection result data of the water diversion project into the system, the third data storage module is used to store the historical detection result data, and the third data analysis module is used to evaluate the safety status of the special detection items of each single building in the water diversion project; The diagnosis subsystem includes a risk analysis module and a comprehensive analysis module. The risk analysis module is used to evaluate the risk index of each section of the water diversion project according to the safety status of each single building, and the comprehensive analysis module comprehensively evaluates the operation state of the entire water diversion project according to the risk indexes of all sections.

2. Comprehensive diagnostic method for the operational behavior of water diversion and regulation projects, characterized in that, Based on the comprehensive diagnosis system for the operation state of the water diversion project described in claim 1, the following steps are specifically included: Step S1: Divide the water diversion project into multiple sections, and classify the buildings in each section; Step S2: Calculate the risk index of each section, which specifically includes the following steps: Step S2.1: For the same building within the same section, conduct the following safety status evaluation; Step S2.1.1: Through the data acquisition module in the monitoring subsystem, collect the monitoring item data of each building in this section in real time. The first data analysis module diagnoses the safety status of each monitoring item of this single building and calculates its monitoring information risk index; Step S2.1.2: Through the on-site inspection data input by the patrol inspection interface of the inspection subsystem, the second data analysis module diagnoses the safety status of the on-site inspection items of this single building and calculates its inspection information risk index; Step S2.1.3: Through the special detection data of this single building input by the data entry interface of the detection subsystem, the third data analysis module diagnoses the safety status of the special detection items of this single building and calculates its detection information risk index; Step S2.1.4: The risk analysis module of the diagnosis subsystem calculates the risk index of this single building according to the three sub-risk indexes obtained in steps S2.1.1 - S2.1.3, as well as the dynamic index risk index; Step S2.2: Repeat Step S2.1 to obtain the risk indices of other individual buildings among the same type of buildings within the same paragraph. The risk analysis module of the diagnosis subsystem calculates the risk index of this type of building within the same paragraph based on the risk indices of all individual buildings of the same type. Step S2.3: Similarly, repeat Step S2.1 and Step S2.2 to obtain the risk indices of other types of buildings within this paragraph. Step S2.4: The risk analysis module of the diagnosis subsystem calculates the risk index of this paragraph based on the risk indices of each type of building within this paragraph and their corresponding weights. Step S3: The comprehensive analysis module of the diagnosis subsystem determines the operating state of the entire water diversion and regulation project based on the risk indices of all paragraphs.

3. The comprehensive diagnosis method for the operation state of the water diversion project according to claim 2, characterized in that, In Step S2.1.1, multiple monitoring points are set on each individual building, and corresponding monitoring instruments are set at each monitoring point. The original data of the corresponding monitoring items are obtained through the monitoring instruments. The first data analysis module obtains the predicted data through the variable dimension fractal method and corrects the predicted data using the Markov chain. Moreover, the predicted data of each monitoring point are normalized and then data fusion is performed to obtain the risk index of the single monitoring information of this building.

4. The comprehensive diagnosis method for the operational behavior of the water diversion project according to claim 3, characterized in that After normalizing the predicted data, data fusion is performed specifically as follows: 1). Data normalization and basic probability assignment: First, normalize the prediction data to the interval [0, 1] to obtain the normalized result. u x ; Then, according to the normalized value u x , assign basic probabilities to the four risk levels according to the following trapezoidal membership function. The risk level set is {V1, V2, V3, V4} = {safe, relatively safe, relatively unsafe, unsafe}, specifically: （1）； In the above formula, y represents the y-th evidence source. 2), Evidence Fusion Rules and Model: According to the Dempster-Shafer fusion rule, fuse the data after assignment. The fusion rule is as follows: (2); In the above formula: represents the conflict coefficient. When k ≠1, evidence fusion can be performed; when k <1, there is a conflict between the evidences and fusion cannot be performed; y, y + s represent different evidence sources; i, j ∈ [1, 4]. Iterate M(V j ) using the fusion rule to obtain the basic belief assignment vector M of the evaluation object belonging to V j : （3）； If there is n evidence sources, then iterate n -1 times; 3) Evaluate the risk index according to the fused result, and the evaluation criteria are as follows: When M ( V 1) > 0.5, the risk index is: ； When M ( V (2) > 0.5, the risk index is: ； When M ( V (3)> 0.5, the risk index is: ； When M ( V (4) > 0.5, the risk index is: ； Among them, 。 5. The comprehensive diagnosis method for the operation state of the water diversion project according to claim 4, characterized in that In Step S2.1.2, the information obtained by the inspection subsystem through the camera shooting and manual inspection is all qualitative information. The obtained qualitative information is evaluated according to the following quantitative judgment criteria to obtain the corresponding inspection information risk index. Corresponding quantitative judgment criteria for the inspection information risk index are formulated according to the on-site inspection situation for different buildings, specifically as follows: I. For the channel project:

1. If any of the following situations exist, the inspection information risk index is (0, 0.25]: 1) The structure is intact, the technical state is good, and it meets the design usage requirements; 2) There is no uneven settlement, crack, sliding or seepage phenomenon in the channel body; 3) The anti-seepage and drainage facilities are complete and effective; 4) There is no uneven settlement, misalignment or leakage phenomenon at the joint between the channel and the cross-channel or over-channel buildings.

2. If any of the following situations exist, the inspection information risk index is (0.25, 0.5]: 1) The structure is partially damaged but still can operate normally; 2) There are slight settlement, crack, sliding or seepage phenomena in the channel body; 3) The anti-seepage and drainage facilities are relatively complete and mostly effective; 4) There are slight uneven settlements, misalignments and slight leakage phenomena at the joint between the channel and the cross-channel or over-channel buildings.

3. If any of the following situations exist, the inspection information risk index is (0.5, 0.75]: 1) The structure is damaged in many places and can barely operate normally; 2) There are obvious uneven settlements, cracks, sliding or seepage phenomena in the channel body; 3) The anti-seepage and drainage facilities are incomplete and partially effective; 4) There are obvious uneven settlements, misalignments and leakage phenomena at the joint between the channel and the cross-channel or over-channel buildings.

4. If any of the following situations exists, the inspection information risk index is (0.75, 1]: 1) The structure is severely damaged and difficult to operate normally; 2) There are serious uneven settlements, cracks, sliding or seepage in the channel body; 3) Anti-seepage and drainage facilities are lacking; 4) There are serious uneven settlements, staggered joints and serious leakage at the joints between the channel and the cross-channel or over-channel buildings. II. For pumping station projects:

1. If any of the following situations exists, the inspection information risk index is (0, 0.25]: 1) The pumping station project has a complete structure, good technical condition and meets the design usage requirements; 2) There is no erosion or collapse on the slope protection of the intake sump, and the filter layer at the bottom of the protection is intact; The trash rack meets the requirements; The decontamination equipment is complete; 3) There is no settlement in the retaining wall of the outlet sump, no cracks in the bottom slab, and good connection with the main canal; 4) The pipeline flow passage is stable without water leakage or air accumulation, and the pipeline water passing efficiency is high; 5) There is no abnormal deformation or settlement in the foundation of the pump house, which can ensure the safe operation of the main and auxiliary machine systems.

2. If any of the following situations exists, the inspection information risk index is (0.25, 0.5]: 1) The pumping station project has partial damage but can still operate normally; 2) There is slight siltation in the intake sump, local landslides on the slope protection, and the filter at the bottom of the protection is intact; 3) There is slight settlement in the retaining wall of the outlet sump and a small amount of leakage; 4) There is water leakage in the outlet pipeline, cracks appear in the anchor blocks, but it can still operate normally after short-term repair; 5) There is uneven settlement in the pump house, and the main unit groups need to be reinstalled and debugged.

3. If any of the following situations exists, the inspection information risk index is (0.5, 0.75]: 1) The pumping station project has multiple damages and can barely operate normally; 2) The intake sump has heavy siltation, landslides on the slope protection, and poor effect of the filter at the bottom of the protection; 3) There is obvious settlement in the retaining wall of the outlet sump and a large amount of leakage; 4) There is water leakage in the outlet pipeline, cracks appear in the anchor blocks, but it can barely operate normally after short-term repair; 5) There is uneven settlement in the pump house, and the main unit groups need to be reinstalled and debugged, and it is difficult to repair in the short term.

4. If any of the following situations exists, the inspection information risk index is (0.75, 1]: 1) The pumping station project is severely damaged and cannot operate; 2) The intake sump has severe siltation, landslides on the slope protection, and the filter at the bottom of the protection fails; 3) The retaining wall of the outlet sump has severe settlement and a large amount of leakage; 4) The water leakage in the outlet pipeline is serious, large-scale cracks appear in the anchor blocks, and it cannot be repaired in a short time; 5) There is uneven settlement in the pump house, the main unit groups need to be replaced, and the project needs to be de-risked and reinforced. III. For sluice and pumping station projects:

1. If any of the following situations exists, the inspection information risk index is (0, 0.25]: 1) The sluice project has a complete structure, good technical condition and meets the design usage requirements; 2) There is no settlement in the retaining wall and wing wall, no cracks or siltation in the bottom slab, and good connection with the main canal; 3) There is no abnormal deformation or settlement in the foundation of the sluice chamber, which can ensure the normal opening of the gate.

2. If any of the following situations exists, the inspection information risk index is (0.25, 0.5]: 1) The sluice project has partial damage but can still operate normally; 2) The retaining wall and wing wall have slight settlement and a small amount of leakage; there are a small number of cracks on the floor slab and a small amount of siltation; 3) The lock chamber has uneven settlement, affecting the normal operation of the gate.

3. If any of the following situations exists, the inspection information risk index is (0.5, 0.75]: 1) The sluice project has multiple damages and cannot meet the requirements of safe operation; 2) The retaining wall and wing wall have obvious settlement and a large leakage volume; there are more cracks on the floor slab and a large siltation volume; 3) The lock chamber has uneven settlement, and the gate needs to be reinstalled and debugged, and it is difficult to repair in the short term.

4. If any of the following situations exists, the inspection information risk index is (0.75, 1]: 1) The sluice project is severely damaged and cannot operate safely; 2) The retaining wall and wing wall have severe settlement and a large number of cracks on the floor slab; 3) The foundation of the lock chamber has severe settlement and the gate slot is severely deformed. IV. For the water conveyance inverted siphon project or the culvert project:

1. If any of the following situations exists, the inspection information risk index is (0, 0.25]: 1) The structure is intact, the technical condition is good, and it meets the design service requirements; 2) The retaining wall and wing wall have no settlement, the floor slab has no cracks and no siltation, and it is well connected with the main canal; 3) The inlet and outlet sections have no uneven settlement and offset, the structural joints are closed; the water stop is intact and there is no leakage; the backfill behind the wall has no settlement and loss.

2. If any of the following situations exists, the inspection information risk index is (0.25, 0.5]: 1) The structure has partial damage but can still operate normally; 2) The retaining wall and wing wall have slight settlement and a small amount of leakage; there are a small number of cracks on the floor slab and a small amount of siltation; 3) The inlet and outlet sections have local uneven settlement and offset, and some structural joints are open; the water stop is partially damaged and there is leakage; the backfill behind the wall has local settlement and loss.

3. If any of the following situations exists, the inspection information risk index is (0.5, 0.75]: 1) The structure has multiple damages and can barely operate normally; 2) The retaining wall and wing wall have obvious settlement and a large leakage volume; there are more cracks on the floor slab and a large siltation volume; 3) The inlet and outlet sections have obvious uneven settlement and offset, the structural joints are open; the water stop fails and the leakage volume is large; the backfill behind the wall has settlement and loss.

4. If any of the following situations exists, the inspection information risk index is (0.75, 1]: 1) The structure is severely damaged and it is difficult to operate normally; 2) The retaining wall and wing wall have severe settlement and a large number of cracks on the floor slab; 3) The inlet and outlet sections have severe uneven settlement and offset, the structural joints are open; the water stop fails and the leakage volume is large; the backfill behind the wall has large-scale settlement and loss.

6. The comprehensive diagnosis method for the operation state of the water diversion project according to claim 5, characterized in that In step S2.1.3, the special inspection data of the building are the quality inspection data of various building materials, including the compressive strength of concrete, the carbonation depth, the thickness of the steel bar protection layer, and the degree of steel bar corrosion; the processing method of the inspection data is the same as that of the monitoring data. By comparing the measured value with the design value or the specification value, the inspection information risk index is determined.

7. The comprehensive diagnosis method for the operation state of the water diversion project according to claim 6, characterized in that, The determination of the dynamic index risk index in step S2.1.4 is specifically as follows: Considering the actual engineering situation, determine the existing dynamic influencing factors. The risk index of the dynamic index corresponding to each dynamic influencing factor is calculated based on the data of three states: the design value, the measured value during the operation period, and the highest risk value during the operation process, as follows: （4）； （5）； In the above formula: R ( o gl ) represents the risk index of the l th dynamic index, β erf represents the coefficient related to the error function, erf $(x)$ is the error function, λ gl is the standard value of the risk quantification of the l th risk index in the g th state. According to needs, the calculation method is formulated in combination with the actual project, and there are differences in the calculation methods of different risk indexes; γ gl represents the weight of the l th risk index in the g th state, β is the influence coefficient, that is, the influence degree of the dynamic index on the building.

8. The comprehensive diagnosis method for the operational behavior of the water diversion project according to claim 7, characterized in that, When there are multiple similar buildings in a paragraph, the risk index of this type of building is determined according to the K - value method, specifically as follows: （6）； In the above formula, A a is a the risk index of Class B b buildings, a is the risk index of a single building b in Class a buildings, where b ∈ [1, N], N represents the number of Class a buildings in this paragraph, and d is the influence coefficient.

9. The comprehensive diagnosis method for the operation state of the water diversion project according to claim 8, characterized in that, The paragraph risk index is calculated as follows: (7); In the above formula: P c is the risk index of paragraph c, r c,a is the weight of type-a buildings within paragraph c, where a ∈ [1, G], and G represents that there are G types of buildings in paragraph c.

10. The comprehensive diagnostic method for the operational behavior of the water diversion project according to claim 9, characterized in that, In step 3, the overall safety state of the water diversion and regulation project is evaluated based on the risk indices and weights of each paragraph, specifically as follows: Step S3.1: Calculate the weight of each paragraph D c , where the weight of the paragraph is related to the number of each type of building and the channel length in the paragraph; Step S3.1.1: Calculate the weight of the channel in the paragraph: （8）; In the above formula: r c,q is the weight of the channel within paragraph c; r ， q is the weight of the channel when integrating risks within this paragraph; L z is the total length of the channels of the water diversion and regulation project; L c is the length of the channels within this section; Step S3.1.2: Calculate the weights of various types of buildings in the paragraph: （9）; In the above formula: r c,a is the weight of type-a buildings within paragraph c, a = 1, 2, 3, 4, representing cross buildings, drainage buildings, water withdrawal buildings, and cross-span adjacent buildings respectively; r b is the weight occupied by a single building b when integrating the risk indices within this paragraph; N z is the total number of such buildings in the water diversion and regulation project; N a is the number of type-a buildings within this paragraph; Step S3.1.3: The paragraph weight is the sum of the weights of the channel and buildings in this paragraph, that is: （10）; Step S3.2: The overall risk index of the water diversion and regulation project is calculated according to the following formula: （11）; In the above formula: Y is the overall risk index of the water diversion project, p c is the risk index of the paragraph, c ∈ [1, R], and R represents the total number of paragraphs of the whole water diversion project.

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