A test system and method for non-contact identification of water accumulation in tunnels

Abstract

The present invention relates to a test system and method for a non-contact identification method of water accumulation in a tunnel. The system includes a tunnel model component, a water injection component, a data acquisition component, a comparison and verification component, an identification and analysis terminal, and a drainage component. The tunnel model component is used to accumulate injected flowing water. The water injection component injects flowing water with an adjustable water pressure. The data acquisition component is used to collect time series data of the tunnel water accumulation test process. The comparison and verification component is used to record the real water accumulation information and flow rate during the tunnel water accumulation test process. The identification and analysis terminal uses a non-contact identification method to analyze the time series data, extract the water accumulation information and flow rate, and compare them with the real value. The drainage component is used to discharge the accumulated water after a single group of tests. Compared with the prior art, the present invention compares the non-contact identification results of tunnel water accumulation with the real value through experiments, solves the problem that tunnel water accumulation cannot be tested on site, and can be used to verify and improve the accuracy and practicality of the method.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel water accumulation monitoring, and in particular to a test system and method for a non-contact identification method of water accumulation in a tunnel. Background Art

[0002] With the continuous expansion of urban transportation networks and the increase in the number of tunnels, the problem of water accumulation in tunnels under extreme weather conditions such as heavy rain has become an important challenge for urban traffic management. Tunnel water accumulation caused by heavy rain not only leads to traffic congestion and traffic accidents, but may also damage the tunnel structure and even cause casualties, causing considerable losses to the urban transportation system and social economy.

[0003] At present, the monitoring technologies for water accumulation in tunnels mainly include traditional manual inspections and sensor-based automatic monitoring systems. Manual inspections have problems such as low efficiency, limited coverage, and long cycles, and cannot meet the needs of timely monitoring of tunnel water accumulation. Although the sensor monitoring system can achieve real-time monitoring, its limitations are also obvious, including limited installation locations, susceptibility to interference from environmental factors, and complex data processing. In addition, these monitoring technologies have certain limitations in identifying the volume and flow of accumulated water, and cannot effectively cope with the challenges of extreme weather conditions such as heavy rains.

[0004] Although there are some non-contact identification methods for water accumulation in tunnels, due to the danger and traffic impact of water accumulation in tunnels, it is impossible to simulate and test the water accumulation in the actual tunnel environment, so the effectiveness and accuracy of these methods are often difficult to fully verify. The test can simulate different tunnel environments and weather conditions, including rainfall of different intensities and water accumulation of different water levels, to ensure the robustness and reliability of the identification method under various conditions, and can also promptly discover and solve problems and deficiencies in the identification method, providing a strong basis for its further improvement and optimization. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and to provide a test system and method for non-contact identification of water accumulation in a tunnel.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A test system for a non-contact identification method of water accumulation in a tunnel, comprising a tunnel model component, a water injection component, a data acquisition component, a comparison and verification component, an identification and analysis terminal and a drainage component;

[0008] The tunnel model component is a model simulating a tunnel structure, which is used to accumulate injected water, conduct tunnel water accumulation tests, and simulate tunnel conditions when urban waterlogging occurs;

[0009] The water injection assembly is used to inject flowing water into the tunnel model assembly at an adjustable water pressure;

[0010] The data acquisition component is used to collect the time series data of water accumulation in the tunnel model component during the tunnel water accumulation test in a non-contact manner and transmit it to the identification and analysis terminal;

[0011] The comparison and verification component is used to record the real value of water accumulation information and flow rate during the tunnel water accumulation test, and transmit it to the identification and analysis terminal;

[0012] The identification and analysis terminal is used to process and analyze the time series data collected by the data collection component, identify the water accumulation information and flow rate, and compare them with the corresponding real values ​​to obtain the identification accuracy;

[0013] The drainage component is used to drain the accumulated water in the tunnel model component after the tunnel water accumulation test is completed.

[0014] Furthermore, the tunnel model assembly includes a tunnel scale model, a bracket and a spray device. The tunnel scale model is a reduced-scale tunnel model cast in an integral manner using a concrete formwork. The model cross section of the tunnel scale model is semi-closed and is used for the data acquisition assembly to collect water accumulation data. The tunnel scale model is provided with a water injection hole at the end of the model and a drainage hole at a low-lying part of the model.

[0015] The bracket is used to fix and carry the tunnel scale model;

[0016] The spraying devices are distributed on the top of the inner wall of the tunnel scale model and are used to simulate dripping and spraying water in the tunnel.

[0017] Furthermore, the water injection assembly includes a water storage tank, a control valve and a variable frequency booster pump;

[0018] The water tank stores water required for the tunnel water accumulation test; the control valve is installed at the bottom of the water tank and is used to control the opening and closing of water injection; the variable frequency booster pump is used to adjust the pressure of water injection according to test requirements, control the flow rate of water injection, and connect the control valve and the water injection hole of the tunnel scale model through pipelines respectively.

[0019] Furthermore, the drainage assembly includes a drainage valve and a drainage booster pump;

[0020] The drainage valve is used to control the opening and closing of drainage, and the drainage booster pump is used to control the water pressure of drainage, and the drainage valve and the drainage hole of the tunnel scale model are connected through pipelines respectively.

[0021] Further, the data acquisition assembly includes a photographing device, a tripod and a lighting device;

[0022] The photographing device is used to collect water accumulation data in the tunnel model assembly during the tunnel water accumulation test and is connected to the identification and analysis terminal; the tripod is used to fix the photographing device and can adjust the shooting distance and angle of the photographing device; the lighting device is used to provide uniform lighting with different illumination intensities for the photographing device during data collection.

[0023] Furthermore, the photographing device includes a combination of one or more of a digital camera, a high-speed camera, a depth camera, a binocular camera combination and a multi-camera camera.

[0024] Further, the comparison verification component includes a water gauge sticker and a flow meter;

[0025] The water gauge sticker is fixed on the inner surface of the tunnel model component to record the real water level during the tunnel water accumulation test; the flow meter is connected in series in the pipeline of the water injection component to record the real-time flow and water body information during the tunnel water accumulation test, and is connected to the identification and analysis terminal;

[0026] The image time series data containing the water gauge sticker is collected through the data acquisition component, so as to read the corresponding water gauge scale value and obtain the true value of the water accumulation information; according to the sensor data of the flow meter, the true value of the water volume and real-time flow rate flowing through the water injection component during the tunnel water accumulation test is calculated.

[0027] Furthermore, the water gauge sticker is provided with uniform scales. When the water gauge sticker is covered by water, the scale value of the water gauge sticker is converted into the current water level according to the geometric structure of the cross section of the tunnel model component to obtain the true value of the water accumulation information.

[0028] Furthermore, the identification and analysis terminal includes a control unit, a storage unit, an identification unit and a comparison and analysis unit;

[0029] The control unit is used to control the equipment parameters of the data acquisition component; the storage unit is used to store the time series data of water accumulation during the tunnel water accumulation test, the real values ​​of water accumulation information and flow rate, and the water accumulation identification program; the identification unit is used to execute the water accumulation identification program to identify the water level, water volume and flow rate information based on the time series data of the water accumulation; the comparison and analysis unit is used to compare the identification result output by the identification unit with the corresponding real value to obtain the identification accuracy.

[0030] The present invention also provides a test method for a test system of a non-contact identification method for water accumulation in a tunnel as described above, comprising the following steps:

[0031] Close the drainage component connected to the tunnel model component, adjust the equipment parameters of the tunnel model component and the data acquisition component, and configure the water body used for the test in the water injection component;

[0032] Start the data acquisition component, start the water injection component to inject water into the tunnel model component, and collect water accumulation time series data through the data acquisition component, and at the same time record the water accumulation information and the real value of the flow rate through the comparison verification component;

[0033] After the water injection is completed, the data acquisition component and the water injection component are turned off, and the collected time series data are processed and analyzed through the identification and analysis terminal to identify the water accumulation information and flow rate, and compare them with the corresponding real values ​​to obtain the identification accuracy;

[0034] Open the drainage component to drain the accumulated water in the tunnel model component and prepare for the next set of tests.

[0035] Compared with the prior art, the present invention has the following advantages:

[0036] (1) The present invention uses a tunnel model component as a tunnel model, and respectively uses a sprinkler device in the model and a water injection component connected to the water injection hole of the model to simulate different situations such as dripping, spraying, and water injection in the tunnel when waterlogging occurs, thereby simulating the water accumulation situation in the tunnel. This solves the problem of being unable to conduct water accumulation tests in actual tunnels due to the danger of water accumulation in the tunnel and the impact on traffic in an experimental manner.

[0037] (2) The data acquisition component of the present invention collects time series data of accumulated water through a photographing device, and can collect data from a two-dimensional or three-dimensional level, which is scalable. At the same time, the comparison and verification component records water volume information and flow information that are not covered by other inventions through the provision of a water gauge sticker and a flow meter with uniform scales, thereby providing necessary support and guarantee for the innovation of non-contact identification technology and the functional expansion of current identification methods.

[0038] (3) The present invention compares the recognition result with the true value through the recognition and analysis terminal, which makes up for the deficiency of the current non-contact recognition method that cannot verify the accuracy. The effectiveness of the proposed method in practical applications can be evaluated and improved, which promotes the solution to the limitations of existing monitoring technology and improves monitoring efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A schematic diagram of the on-site arrangement of a test system for a non-contact identification method for water accumulation in a tunnel provided in an embodiment of the present invention;

[0040] Figure 2 A schematic diagram of the system composition of a test system for a non-contact identification method of water accumulation in a tunnel provided in an embodiment of the present invention;

[0041] Figure 3 A schematic diagram of a test flow of a test method for a non-contact identification method of water accumulation in a tunnel provided in an embodiment of the present invention;

[0042] In the figure, 1. Scaled model of the tunnel; 2. Water injection hole; 3. Drainage hole; 4. Bracket; 5. Sprinkler; 6. Water storage tank; 7. Control valve; 8. Variable frequency booster pump; 9. Photographic equipment; 10. Lighting device; 11. Flow meter; 12. Identification and analysis terminal. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0046] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0047] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0048] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0049] Example 1

[0050] like Figure 1 and Figure 2 As shown, this embodiment provides a test system for a non-contact identification method of water accumulation in a tunnel, including a tunnel model component, a water injection component, a data acquisition component, a comparison and verification component, an identification and analysis terminal 12, and a drainage component;

[0051] The tunnel model component is a model that simulates the tunnel structure. It is used to store injected water, conduct tunnel water accumulation tests, and simulate the tunnel conditions when urban flooding occurs.

[0052] The water injection assembly is used to inject flowing water into the tunnel model assembly with an adjustable water pressure, and can be configured with different types of water bodies;

[0053] The data acquisition component is used to collect the time series data of water accumulation in the tunnel model component during the tunnel water accumulation test in a non-contact manner, and synchronously transmit it to the identification and analysis terminal 12;

[0054] The comparison and verification component is used to record the real value of water accumulation information and flow rate during the tunnel water accumulation test and transmit it to the identification and analysis terminal 12;

[0055] The identification and analysis terminal 12 is used to process and analyze the time series data collected by the data collection component using a non-contact identification method, identify the water accumulation information and flow rate, and compare them with the corresponding real values ​​to obtain the identification accuracy;

[0056] The drainage component is used to drain the accumulated water in the tunnel model component after a single set of tunnel water accumulation tests are completed, so as to carry out the next set of tests.

[0057] The tunnel model assembly includes a tunnel scale model 1, a bracket 4 and a spray device 5. The tunnel scale model 1 is a scaled-down tunnel model cast in an integral manner using a concrete formwork. The cross section of the tunnel scale model 1 is semi-enclosed, and is used for the data acquisition assembly to collect water accumulation data. The tunnel scale model 1 is provided with a water injection hole 2 at the end of the model and a drainage hole 3 at the low-lying part of the model. The bracket 4 is used to fix and carry the tunnel scale model 1. The spray device 5 is distributed on the top of the inner wall of the tunnel scale model 1, and is used to simulate dripping and spraying water in the tunnel.

[0058] Specifically, in this embodiment, the tunnel scale model 1 takes the subway tunnel as an example, and adopts a geometric similarity ratio of 1:10; the shield segment parameters of Zhengzhou Metro Line 5 are an outer diameter of 6.2m, an inner diameter of 5.5m, a segment thickness of 0.35m, and a lining ring width of 1.5m, so the cross-sectional dimensions of the tunnel scale model 1 are an outer diameter of 0.62m, an inner diameter of 0.55m, and a segment thickness of 35mm; in order to meet the actual "energy-saving slope" of the subway tunnel, the middle part of the model is lower than the two ends, the model is 4m long in total, and the middle part is the lowest point, where running water can accumulate; the tunnel scale model 1 is cast in an integral manner using a concrete formwork, and the material of the concrete can restore the real tunnel scene to the greatest extent, and the integral casting can ensure that the model is impermeable during the test; in order to facilitate the shooting of the accumulated water in the tunnel and restore the shooting angle of the real scene, the cross section of the model is semi-closed. In this embodiment, the model is open within a range of 90° between the horizontal and vertical directions, such as Figure 1 As shown; in order to facilitate water injection and drainage, the model is provided with a water injection hole 2 and a drainage hole 3. The water injection hole 2 is located at the end of the model, and the drainage hole 3 is located at the low-lying part of the model, which can drain the accumulated water in the model. Since the cross-section of the tunnel scale model 1 is asymmetrical, it is easy to slide and roll. The bracket 4 is used to fix and carry the tunnel scale model 1 and place it stably on the ground; a bracket is provided above one end of the bracket 4, and the edge of the model can be stuck in the bracket to fix it, as shown in FIG. Figure 1 The spraying devices 5 are evenly distributed on the top of the inner wall of the tunnel scale model 1 and connected to the water pipe. The spraying water volume can be adjusted to simulate different situations such as dripping and spraying in the tunnel when waterlogging occurs.

[0059] In this embodiment, the water injection assembly includes a water storage tank 6, a control valve 7 and a variable frequency booster pump 8;

[0060] Specifically, the water storage tank 6 is filled with water through the tap water pipe to store the water required for the test. The reason why the water injection component is not directly connected to the tap water pipe is that the water in the tunnel is usually not clear water like tap water; by storing water, operations such as dyeing and doping can be performed, and different types of water can be configured. The control valve 7 is installed at the bottom of the side of the water storage tank 6 to control the opening and closing of the water injection. The variable frequency booster pump 8 can adjust the pressure of the water injection according to the test requirements, control the flow rate of the water injection, and generate a stable uniform water flow to simulate tunnel water accumulation of different degrees of danger; the variable frequency booster pump 8 is installed with pagoda joints at both ends, which are connected to the control valve 7 through a transparent hose, and water is injected into the model through the water injection hole 2 of the tunnel scale model 1.

[0061] In this embodiment, the data acquisition component includes a shooting device 9, a tripod, and a lighting device 10.

[0062] Specifically, the shooting device 9 collects time series data of accumulated water during the test. Different types can be used according to different identification methods. Most current non-contact identification methods focus on the two-dimensional level, but at the same time, three-dimensional methods also have certain potential and advantages. Therefore, the shooting device 9 includes but is not limited to digital cameras, high-speed cameras, depth cameras, binocular camera combinations, and multi-camera combinations. The shooting device 9 interacts with the identification and analysis terminal 12 through a wired connection, including transmitting data and setting shooting parameters. This embodiment adopts the USB3.2 transmission method. The tripod is used to fix the shooting device 9 and adjust the shooting distance and angle so that the shooting device 9 has a good shooting angle and shooting quality. The lighting device 10 can provide uniform lighting with different illumination. By controlling the lighting conditions during the acquisition process, the impact of lighting on different identification methods can be tested.

[0063] In this embodiment, the comparison and verification components include a water level sticker and a flow meter 11.

[0064] Specifically, the water gauge sticker is fixed on the inner surface of the tunnel scale model 1, located in the low-lying part of the tunnel, and is used to record the real water level during the test; the water gauge sticker can be uniformly scaled. When the water gauge is covered by water, the scale value can be converted into the current water level by using the geometric structure of the tunnel section, that is, the conversion of arc length and arch height. The water gauge scale value after water accumulation can be directly obtained by manually reading the image time series data collected by the shooting device 9; it is worth noting that the water gauge sticker is used to verify the accuracy of the non-contact water level recognition method, rather than to assist in identifying the water level; the water level sticker is selected instead of the water level sensor, etc., in order to minimize the impact of obtaining the real water level on the simulation of the whole process of water accumulation. The flow meter 11 can record the water volume and real-time flow rate flowing through the water injection component during the test, and is used to compare with the water volume and flow rate identified by the non-contact method; the flow meter 11 is connected to the water injection component through a pagoda connector and a transparent hose, and transmits the real flow and water volume data to the identification and analysis terminal 12 through a wired connection, and the USB3.2 transmission method is also used here.

[0065] In this embodiment, the identification and analysis terminal 12 is a computer device, including a control unit, a storage unit, an identification unit, and a comparison and analysis unit.

[0066] Specifically, the control unit configures the parameters of the shooting device 9, including shooting mode, resolution, and frame rate, before each water injection starts through a wired connection. The storage unit stores the time series data and real data of the test process, and stores the water accumulation recognition program. The recognition unit executes the water accumulation recognition program to recognize the water level, water volume, and flow rate during the water accumulation process. The recognition program includes but is not limited to image processing methods, machine vision methods, and deep learning methods. The comparative analysis unit compares the recognition result with the real data and calculates the recognition accuracy.

[0067] In this embodiment, the drainage component includes a drainage valve and a drainage booster pump.

[0068] Specifically, the drainage valve controls the opening and closing of drainage. The drainage valve remains closed during the water injection process and is opened after a set of tests are completed. The drainage booster pump can increase the water pressure of the drainage and speed up the drainage progress. The drainage valve is connected to the drainage booster pump through a transparent hose to drain water from the drainage hole 3 of the tunnel scale model 1.

[0069] like Figure 3 As shown in the flow chart, this embodiment also provides a test method for non-contact identification of water accumulation in a tunnel corresponding to the above test system, comprising the following steps:

[0070] 1) Close the control valve 7 and the drain valve, place the water used for the test in the water storage tank 6, adjust the spraying pattern of the spraying device 5, and adjust the pressure of the variable frequency booster pump 8;

[0071] 2) Adjust the position and angle of the tripod to adjust the illumination of the lighting device 10;

[0072] 3) Setting the parameters of the photographing device 9, including the photographing mode, resolution, frame rate, and zeroing the flow meter;

[0073] 4) Start the shooting device 9, turn on the variable frequency booster pump 8, control the valve 7, and the spray device 5, start water injection, collect the water accumulation time series data, and record the real data at the same time;

[0074] 5) After the water injection is completed, stop shooting, close the control valve 7, the variable frequency booster pump 8, and the spray device 5, and perform data processing and analysis on the identification and analysis terminal 12, and compare the identification data with the true value to calculate the accuracy;

[0075] 6) Open the drain valve, start the drain booster pump, start draining, and prepare for the next set of tests.

[0076] Through the test system and method of the non-contact identification method of water accumulation in the tunnel, the problem of not being able to conduct water accumulation testing in actual tunnels can be solved, the accuracy verification of the non-contact identification method of water accumulation in tunnels can be achieved, the performance of the method in practical applications can be evaluated, and the necessary support and guarantee for the development and application of non-contact identification technology can be provided. Contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0077] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A non-contact identification test system for water accumulation information and flow in a tunnel, characterized in that: It includes a tunnel model component, a water injection component, a data acquisition component, a comparison and verification component, an identification and analysis terminal (12) and a drainage component; The tunnel model component is a model simulating a tunnel structure, which is used to accumulate injected water, conduct tunnel water accumulation tests, and simulate tunnel conditions when urban waterlogging occurs; The water injection assembly is used to inject flowing water into the tunnel model assembly at an adjustable water pressure; The data acquisition component is used to collect time series data of water accumulation in the tunnel model component during the tunnel water accumulation test in a non-contact manner, and transmit the data to the identification and analysis terminal (12); The comparison and verification component is used to record the real value of water accumulation information and flow rate during the tunnel water accumulation test, and transmit it to the identification and analysis terminal (12); The identification and analysis terminal (12) is used to process and analyze the time series data collected by the data collection component, identify the water accumulation information and flow rate, and compare them with the corresponding real values ​​to obtain the identification accuracy; The drainage component is used to drain the accumulated water in the tunnel model component after the tunnel water accumulation test is completed; The comparison verification component comprises a water gauge sticker and a flow meter (11); The water gauge sticker is fixed on the inner surface of the tunnel model component and is used to record the real water level during the tunnel water accumulation test; the flow meter (11) is connected in series in the pipeline of the water injection component and is used to record the real-time flow and water body information during the tunnel water accumulation test, and is connected to the identification and analysis terminal (12); The image time series data including the water gauge sticker is collected by the data acquisition component, thereby reading the corresponding water gauge scale value to obtain the real value of the water accumulation information; based on the sensor data of the flow meter (11), the real value of the water volume and real-time flow rate flowing through the water injection component during the tunnel water accumulation test is recorded.

2. According to claim 1, a non-contact identification test system for water accumulation information and flow in a tunnel is characterized in that: The tunnel model assembly comprises a tunnel scale model (1), a bracket (4) and a spray device (5); The tunnel scale model (1) is a tunnel model of reduced proportion cast in an integral manner using a concrete formwork; the cross section of the tunnel scale model (1) is semi-enclosed and is used by a data acquisition component to collect water accumulation data; the tunnel scale model (1) is provided with a water injection hole (2) located at the end of the model and a drainage hole (3) located at a low-lying part of the model; The bracket (4) is used to fix and carry the tunnel scale model (1); The spraying device (5) is distributed on the top of the inner wall of the tunnel scale model (1) and is used to simulate dripping and spraying water in the tunnel.

3. According to claim 2, a non-contact identification test system for water accumulation information and flow in a tunnel is characterized in that: The water injection assembly comprises a water storage tank (6), a control valve (7) and a variable frequency booster pump (8); The water tank (6) stores water required for the tunnel water accumulation test; the control valve (7) is installed at the bottom of the water tank (6) and is used to control the opening and closing of water injection; the variable frequency booster pump (8) is used to adjust the pressure of water injection according to test requirements and control the flow rate of water injection, and is connected to the control valve (7) and the water injection hole (2) of the tunnel scale model (1) through pipelines.

4. According to claim 2, a non-contact identification test system for water accumulation information and flow in a tunnel is characterized in that: The drainage assembly includes a drainage valve and a drainage booster pump; The drainage valve is used to control the opening and closing of drainage, and the drainage booster pump is used to control the water pressure of drainage, and the drainage valve and the drainage hole (3) of the tunnel scale model (1) are respectively connected through pipelines.

5. According to claim 1, a non-contact identification test system for water accumulation information and flow in a tunnel is characterized in that: The data acquisition component comprises a photographing device (9), a tripod and a lighting device (10); The photographing device (9) is used to collect water accumulation data in the tunnel model component during the tunnel water accumulation test and is connected to the identification and analysis terminal (12); the tripod is used to fix the photographing device (9) and can adjust the photographing distance and angle of the photographing device (9); and the lighting device (10) is used to provide uniform lighting with different illuminations for the photographing device (9) during the data collection process.

6. A non-contact identification test system for water accumulation information and flow in a tunnel according to claim 5, characterized in that: The photographing device (9) comprises a combination of one or more of a digital camera, a high-speed camera, a depth camera, a binocular camera combination, and a multi-camera camera.

7. According to claim 1, a non-contact identification test system for water accumulation information and flow in a tunnel is characterized in that: The water gauge sticker is provided with uniform scales. When the water gauge sticker is covered by water, the scale value of the water gauge sticker is converted into the current water level according to the geometric structure of the cross section of the tunnel model component to obtain the true value of the water accumulation information.

8. The non-contact identification test system for water accumulation information and flow in a tunnel according to claim 1 is characterized in that: The identification and analysis terminal (12) comprises a control unit, a storage unit, an identification unit and a comparison and analysis unit; The control unit is used to control the equipment parameters of the data acquisition component; the storage unit is used to store the time series data of water accumulation during the tunnel water accumulation test, the real values ​​of water accumulation information and flow rate, and the water accumulation identification program; the identification unit is used to execute the water accumulation identification program to identify the water level, water volume and flow rate information based on the time series data of the water accumulation; the comparison and analysis unit is used to compare the identification result output by the identification unit with the corresponding real value to obtain the identification accuracy.

9. A test method for a non-contact identification test system of water accumulation information and flow in a tunnel as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: Close the drainage component connected to the tunnel model component, adjust the equipment parameters of the tunnel model component and the data acquisition component, and configure the water body used for the test in the water injection component; Start the data acquisition component, start the water injection component to inject water into the tunnel model component, and collect water accumulation time series data through the data acquisition component, and at the same time record the water accumulation information and the real value of the flow rate through the comparison verification component; After the water injection is completed, the data acquisition component and the water injection component are turned off, and the collected time series data are processed and analyzed by the identification and analysis terminal (12), the water accumulation information and flow rate are identified, and compared with the corresponding real values ​​to obtain the identification accuracy; Open the drainage component to drain the accumulated water in the tunnel model component and prepare for the next set of tests.

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