Visual physical device and method for rainfall infiltration and leakage undercutting force applied soil cavity in same direction

Abstract

The invention relates to a rainfall infiltration and leakage undercutting same-direction force application soil cavity visualization physical device and method, and the device comprises an intelligent rainfall module, a pipeline leakage module, an optical tracking and tracing monitoring module, a control platform, a data collection module, and a stratum model module. The intelligent rainfall module and the pipeline leakage module are integrated into the control platform; the pipeline leakage module implements nearly real pipeline operation according to a starting device which inputs real pipeline operation conditions; the optical tracking and tracing monitoring module is arranged in the stratum model module; the control platform controls the actions of the intelligent rainfall module and the pipeline leakage module, and then the rainfall and leakage conditions of the stratum model module are detected; and the acquisition module is connected with the optical tracking and tracking monitoring module. According to the invention, the real process of adhesion-migration-movement-emigration of soil particles around the pipeline under the action of rainfall infiltration force and leakage undercutting force in the same direction can be captured, and tracking from microscopic movement to light and shadow phase color change of the soil particles is realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of urban road underground management, and specifically relates to a physical device and method for visualizing soil cavities in which rainfall infiltration and seepage erosion exert forces in the same direction. Background Art

[0002] In recent years, urban road collapse accidents have occurred frequently, seriously threatening people's lives and property safety. According to incomplete statistics, road collapses induced by leakage of underground drainage pipelines account for nearly 40% of the total number of accidents, and July to September is the peak period for collapse accidents. Drainage pipelines are prone to leakage due to aging, and the impact of heavy rainfall exacerbates the loss of underground soil, which in turn causes underground soil cavity diseases, increasing the probability of road collapse. However, the characteristics of underground soil penetration, erosion, debonding and sliding under the combined effects of rainfall and leakage are still not very clear, and it is difficult to capture the microscopic erosion characteristics of soil particles, resulting in the unclear mechanism of soil penetration, saturation, stripping and migration. Using the physical method and device for visualizing soil cavities under the same force of rainfall penetration and leakage erosion, the real process of soil particles around the pipeline under the same force of rainfall penetration and leakage erosion can be captured, and the microscopic movement of soil particles can be transformed into light and shadow phase color change, and the light and shadow intensity, brightness and darkness, and time characteristics can be captured and remembered at high frequency. This reveals the mechanism of soil infiltration, saturation, stripping and migration, and provides scientific theoretical support for monitoring, early warning and comprehensive prevention of road collapse disasters. Summary of the invention

[0003] In order to overcome the problems in the prior art that it is difficult to capture the microscopic erosion characteristics of soil particles and the unclear mechanism of soil penetration, saturation, stripping and migration, the present invention provides a physical device and method for visualizing soil cavities with rainfall penetration and seepage erosion in the same direction, which captures and memorizes the light and shadow intensity, brightness and darkness, and time characteristics through high-frequency ultraviolet and optical waves and transmits them to the data acquisition module, integrates the microscopic movement of soil particles using massive collected information, and captures visualized light and shadow phase color change images, which are used to solve the above problems in the prior art.

[0004] A physical device for visualizing soil cavities with rainfall penetration and seepage erosion in the same direction, comprising: an intelligent rainfall module, a pipeline leakage module, an optical tracking and tracing monitoring module, a control platform, a data acquisition module and a formation model module.

[0005] The intelligent rainfall module and pipeline leakage module are integrated into the control platform, and the intelligent rainfall module starts the device to implement near-real rainfall according to the input real rainfall conditions;

[0006] The pipeline leakage module implements near-real pipeline operation according to the start-up device inputting the real pipeline operation conditions;

[0007] The optical tracking and tracing monitoring module is arranged in the stratum model module, and is used to photograph the adhesion and migration of the soil in the stratum model module under the action of rainfall and leakage;

[0008] The control platform controls the actions of the intelligent rainfall module and the pipeline leakage module, and then realizes the monitoring of rainfall and leakage of the formation model module;

[0009] The acquisition module is connected to the optical tracking monitoring module and is used to receive the images taken by the module.

[0010] According to the aspects described above and any possible implementation methods, an implementation method is further provided, wherein the intelligent rainfall module includes a connected rain speed, rainfall duration and rainfall amount module, a rain intensity automatic switching module and a rainfall environment simulation module, wherein the rain speed, rainfall duration and rainfall amount module determines the rainfall speed, time and volume parameters according to the instructions sent by the control platform; the rain intensity automatic switching module automatically switches the rainfall intensity parameters in different time periods according to the instructions sent by the control platform; and the rainfall environment simulation module simulates near-real rainfall in a test environment according to these parameters.

[0011] According to the aspects described above and any possible implementation methods, an implementation method is further provided, wherein the pipeline leakage module includes a water pressure control module, a flow rate control module and a pipeline environment simulation module connected to each other, the water pressure control module determines the pipeline water pressure parameters according to the instructions sent by the control platform; the flow rate control module determines the pipeline water flow and flow rate parameters according to the instructions sent by the control platform; the pipeline environment simulation module simulates a near-real pipeline operation state under a test environment based on these parameters.

[0012] According to the aspects described above and any possible implementation method, an implementation method is further provided, wherein the formation model module includes a formation model box and a rainfall component; the rainfall component is arranged to be connected to the control platform, and is used to rain on the formation model box according to the instructions sent by the control platform; the formation model box includes a pavement structure layer and a formation arranged upper and lower, and the pavement structure layer is arranged below the rainfall component.

[0013] According to the aspects described above and any possible implementation method, an implementation method is further provided, wherein at least one drainage pipeline is provided in the stratum, at least one leakage port is provided on the drainage pipeline, and the rainfall device and the drainage pipeline are both connected to the control platform.

[0014] According to the above aspects and any possible implementation manner, there is further provided an implementation manner, wherein the device further comprises a free water container, and the free water container is connected to the control platform via a high-strength flexible pipe.

[0015] According to the aspects described above and any possible implementation methods, an implementation method is further provided, wherein the optical tracking and tracing monitoring module includes a transparent fixed nest, a high-definition wireless camera, an optical tracking device, an ultraviolet radio frequency device and a battery, and the high-definition wireless camera, the optical tracking device, the ultraviolet radio frequency device and the battery are integrated into the transparent fixed nest.

[0016] According to the above aspects and any possible implementation, there is further provided an implementation, wherein the optical tracking monitoring module and the data acquisition module are connected by optical fiber.

[0017] As described above and any possible implementation, a further implementation is provided, wherein a tracer material is mixed in the surrounding soil where the leakage point is located, or a tracer material is added to the water source used for rainfall or leakage.

[0018] The present invention also provides a method for implementing a physical device for visualizing soil cavities in which rainfall infiltration and seepage erosion are applied in the same direction. The method is implemented using the device, and comprises: (1) starting a control platform, an intelligent rainfall module, a pipeline leakage module and a rainfall component, wherein the control platform sends instructions to the intelligent rainfall module and the pipeline leakage module, wherein the intelligent rainfall module and the pipeline leakage module set corresponding parameters according to the instructions, and according to the parameters, rainfall is applied to the pavement structure layer of the stratum model module through the rainfall component, and water is leaked to the stratum of the stratum model module through the leakage port of the drainage pipeline;

[0019] (2) The data acquisition module starts the optical shadow tracing monitoring module. The ultraviolet radio frequency component of the optical shadow tracing monitoring module emits ultraviolet rays to the leakage port of the formation model module. At the same time, the optical tracer of the optical tracer monitoring module begins to capture the microscopic movement of soil particles until the light and shadow phase change, determine the location of the leakage port, and capture and remember the light and shadow intensity, brightness and time characteristics. At the same time, the high-definition wireless camera records the visual image of the soil cavity under rainfall and leakage, and transmits the image to the data acquisition module through optical fiber.

[0020] Beneficial effects of the present invention

[0021] (1) The present invention can capture the real process of soil particles adhering, migrating, moving and moving around the pipeline under the action of rainfall penetration and seepage erosion in the same direction, and realize the tracking of soil particles from microscopic movement to light and shadow phase color change. The device can capture and remember the intensity, brightness and time characteristics of light and shadow at high frequency, discover the saturation degree of soil penetration and the characteristics of peeling and migration, and master the disaster-causing mechanism of soil cavitation under the action of rainfall penetration and seepage erosion, providing strong scientific theoretical support for the prevention and control of urban road collapse disasters. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It is a schematic diagram of the structure of the device of the present invention;

[0023] Figure 2 is a schematic diagram of an optical shadow tracking monitoring module;

[0024] Figure 3 It is a working schematic diagram of the optical shadow tracking monitoring module;

[0025] Figure 4 The middle is a visualization image of the debonding and migration of soil particles to cavitation at the microscopic scale;

[0026] Figure 5 Macro-scale image of soil cavitation process obtained by the optical tracking monitoring module. DETAILED DESCRIPTION

[0027] In order to better understand the technical solution of the present invention, the content of the present invention includes but is not limited to the specific implementation methods described below, and similar technologies and methods should be considered to be within the scope of protection of the present invention. In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments.

[0028] It should be clear that the embodiments described in the present invention are only part of the embodiments of the present invention, rather than all the embodiments. 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.

[0029] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0030] The present invention provides a physical device for visualizing soil cavities by applying forces in the same direction of rainfall penetration and leakage erosion. The device comprises: an intelligent rainfall module, a pipeline leakage module, an optical tracking and tracing monitoring module, a control platform, a data acquisition module and a formation model module.

[0031] The intelligent rainfall module and pipeline leakage module are integrated into the control platform, and the intelligent rainfall module starts the device to implement near-real rainfall according to the input real rainfall conditions;

[0032] The pipeline leakage module implements near-real pipeline operation according to the start-up device inputting the real pipeline operation conditions;

[0033] The optical tracking and tracing monitoring module is arranged in the stratum model module, and is used to photograph the adhesion and migration of the soil in the stratum model module under the action of rainfall and leakage;

[0034] The control platform controls the actions of the intelligent rainfall module and the pipeline leakage module, and then realizes the monitoring of rainfall and leakage of the formation model module;

[0035] The acquisition module is connected to the optical tracking monitoring module and is used to receive the images taken by the module.

[0036] Furthermore, the intelligent rainfall module includes a connected rain speed, rainfall duration and rainfall amount module, a rain intensity automatic switching module and a rainfall environment simulation module. The rain speed, rainfall duration and rainfall amount module determines the rainfall speed, time and volume parameters according to the instructions sent by the control platform; the rain intensity automatic switching module automatically switches the rainfall intensity parameters of different time periods according to the instructions sent by the control platform; and the rainfall environment simulation module simulates near-real rainfall in the test environment according to these parameters.

[0037] Furthermore, the pipeline leakage module includes a connected water pressure control module, a flow rate control module and a pipeline environment simulation module, the water pressure control module determines the pipeline water pressure parameters according to the instructions sent by the control platform; the flow rate control module determines the pipeline water flow and flow rate parameters according to the instructions sent by the control platform; the pipeline environment simulation module simulates the near-real pipeline operation status under the test environment based on these parameters.

[0038] Furthermore, the formation model module includes a formation model box and a rainfall component; the rainfall component block is connected to the control platform and is used to rain on the formation model box according to instructions sent by the control platform; the formation model box includes a pavement structure layer and a formation arranged up and down, and the pavement structure layer is arranged below the rainfall component.

[0039] Furthermore, at least one drainage pipeline is arranged in the stratum, at least one leakage opening is arranged on the drainage pipeline, and the rainfall component and the drainage pipeline are both connected to the control platform.

[0040] Furthermore, the device also includes a free water container, and the free water container is connected to the control platform through a high-strength flexible pipe.

[0041] Furthermore, the optical tracking and tracing monitoring module includes a transparent fixed nest, a high-definition wireless camera, an optical tracking device, an ultraviolet radio frequency device and a battery. The high-definition wireless camera, the optical tracking device, the ultraviolet radio frequency device and the battery are integrated into the transparent fixed nest.

[0042] Furthermore, the optical tracking monitoring module and the data acquisition module are connected by optical fiber.

[0043] Furthermore, tracer materials are mixed in the soil around the leakage point, or tracer materials are added to the water source used for rainfall or leakage.

[0044] Specifically, if Figure 1 As shown, the device includes: an intelligent rainfall module 1, a pipeline leakage module 2, a control platform 3, an optical tracking and tracing monitoring module 4, a data acquisition module 5, a formation model module, an external water source and a rainfall component 11.

[0045] The intelligent rainfall module 1 includes a rain speed, rain duration, and rainfall amount module 1-1, a rain intensity automatic switching module 1-2, and a rainfall environment simulation module 1-3. All components of the intelligent rainfall module 1 are embedded in a control platform 3. The rainfall environment simulation module 1-3 is started according to the input of real rainfall conditions to implement near-real rainfall. The rain speed, rain duration, and rainfall amount module 1-1 determines the rainfall speed and time parameters according to the input command of the control platform; the rain intensity automatic switching module 1-2 automatically switches the rainfall intensity in different time periods according to the input command of the control platform; the rainfall environment simulation module 1-3 simulates near-real rainfall in the test environment according to the output parameters of the rain speed, rain duration, and rainfall amount module 1-1 and the rain intensity automatic switching module 1-2.

[0046] The pipeline leakage module 2 includes a water pressure control module 2-1, a flow rate control module 2-2 and a pipeline environment simulation module 2-3. All pipeline leakage modules are embedded in the control platform 3. The pipeline environment simulation module 2-3 is started according to the input pipeline operation conditions to implement pipeline operation. The water pressure control module 2-1 determines the pipeline water pressure parameters according to the input instructions of the control platform; the flow rate control module 2-2 determines the pipeline water flow and flow rate parameters according to the input instructions of the control platform; the pipeline environment simulation module 2-3 simulates the near-real pipeline operation state under the test environment according to the output parameters of the water pressure control module and the flow rate control module.

[0047] The control platform 3 includes a pipeline parameter panel 3-1, a pipeline simulation start and stop button 3-2, a rainfall parameter panel 3-3, and a rainfall simulation start and stop button 3-4. The pipeline parameter panel 3-1 is connected to the water pressure control module 2-1 and the flow rate control module 2-2, and is used for inputting and displaying the pipeline water pressure, flow rate and flow rate parameters; the pipeline simulation start-stop button 3-2 is connected to the pipeline environment simulation module 2-3, and is used to control the start and stop of the pipeline environment simulation module 2-3; the rainfall parameter panel 3-3 is connected to the rain speed, rain time and rainfall amount module 1-1 and the rain intensity automatic switching module 1-2, and is used for inputting and displaying the rainfall speed, rain time, rainfall amount and rainfall intensity parameters; the rainfall simulation start-stop button 3-4 is connected to the rainfall environment simulation module 1-3, and is used to control the start and stop of the rainfall environment simulation module 1-3. Its function is to issue conditional instructions to the rain speed, rain time and rainfall amount module 1-1, the rain intensity automatic switching module 1-2, the water pressure control module 2-1, and the flow rate control module 2-2, and start the rainfall environment simulation module 1-3 and the pipeline environment simulation module 2-3 to implement near-real rainfall and leakage. At the same time, the control platform 3 can realize free switching between modules, and the modules can realize parallel operation to determine a type of rainfall conditions. The control platform 3 realizes the true integration and unification of each module by embedding a software system of a functional fusion algorithm. The functional fusion algorithm adopts a series-parallel-coupled data mode, and its core is a data coupling structure to achieve adaptive matching. The functional fusion algorithm is an existing technology and will not be described in detail.

[0048] The stratum model module includes a stratum model box 8 and a rainfall component 11; the rainfall component 11 is connected to the control platform 3 and is used to rain on the stratum model box 8 according to the instructions sent by the control platform 3; the stratum model box 8 includes a pavement structure layer 8-1 and a stratum 8-2 arranged up and down, the pavement structure layer 8-1 is arranged below the rainfall component 11, the rainfall component 11 is arranged in a grid shape, and the overall area is determined according to the area of ​​the pavement structure layer 8-1, to ensure that the rainfall component 11 can be evenly rained on the pavement structure layer 8-1 during rainfall, and the rainfall component 11 can be provided with a sprinkler head in each grid, etc., which is not limited by the present invention. The stratum 8-2 is laid out according to the real urban road stratum data; the stratum 8-2 supports the layout of the actual underground working conditions, and can lay out the backfill soil layer, soil layer, pipeline layer, underground pipe gallery layer, tunnel layer and other working conditions according to the real underground environment.

[0049] The drainage pipeline 6 is fixed in the stratum 8-2, and at least one leakage port 7 is arranged on it. The pipeline is arranged in the stratum 8-2 according to the state of the underground drainage pipeline of the real urban road. The stratum model box 8 supports the cross and parallel distribution of multiple drainage pipelines, and the real pipeline distribution state can be realized. The leakage port 7 can be distributed at any position of the drainage pipeline 6 according to the actual situation of the rupture and leakage of the underground drainage pipeline of the urban road. An optical tracking and tracing monitoring module 4 is arranged above each pipeline leakage port 7 to realize the visualization capture and observation of soil cavities caused by the same force of rainfall penetration and leakage erosion. The soil cavities are formed by soil loss caused by the same force of rainfall penetration and leakage erosion, and the soil loss is serious. At the same time, the present invention arranges a tracer material in the stratum 8-2. Under the irradiation of ultraviolet rays, the tracer material will change color when water flows in, that is, the tracer material will glow and have a transparent effect after encountering ultraviolet rays, so as to facilitate observation and quickly determine the position of the leakage port 7 or the position where the leakage occurs. The present invention mixes the tracer material with the soil to form a mixed soil. When laying the stratum 8-2, the mixed soil is arranged above or around the leakage port 7, and the position is laid or adjusted in advance according to the needs of subsequent observations.

[0050] The drainage pipeline 6 and the rainfall component 11 are both connected to the control platform 3 through a high-strength flexible pipe 9 to achieve the intensity of rainfall and leakage under the set parameters; the device of the present invention also includes an external water source, which is realized by a free water container device 12, and the device is also connected to the control platform 3 through a high-strength flexible pipe 9 to provide sufficient water for rainfall and drainage pipelines. Preferably, the present invention can also add tracer materials to the water in the free water container device 12. When the entire device is working, the water source carrying the tracer material enters the formation by rainfall or leakage, and emits light after encountering the ultraviolet light emitted by the optical tracking and tracing monitoring module 4, which has a transparent effect. Therefore, it can also be used to confirm the leakage port 7 or the location where the leakage occurs.

[0051] The optical tracking monitoring module 4 is arranged above the pipeline leakage port 7 and faces the leakage port 7. Figure 4As shown, it includes a transparent fixed nest 4-1, a high-definition wireless camera 4-2, an optical tracer 4-3, an ultraviolet radio frequency device 4-4 and a battery 4-5. The high-definition wireless camera 4-2, the optical tracer 4-3, the ultraviolet radio frequency device 4-4 and the battery 4-5 are all arranged in the transparent fixed nest 4-1, and the battery 4-5 is respectively connected to the high-definition wireless camera 4-2, the optical tracer 4-3, and the ultraviolet radio frequency device 4-4 to provide them with power. The optical tracer monitoring module 4 is connected to the data acquisition module 5 through the optical fiber 10, specifically: one end of the optical fiber 10 passes through the transparent fixed nest 4-1 and is respectively connected to the high-definition wireless camera 4-2, the optical tracer 4-3, and the ultraviolet radio frequency device 4-4, and the other end of the optical fiber 10 is connected to the data acquisition module 5. The transparent fixed nest 4-1 is realized by a glass cavity, which has a certain height space. The high-definition wireless camera 4-2, the optical tracer 4-3, the ultraviolet radio frequency device 4-4 and the battery 4-5 are set as a whole. After being placed in the glass cavity, they can rotate freely in the height space in the glass cavity under the traction of the optical fiber 10. Therefore, when the entire device is working, that is, when rain and leakage occur, the leakage port 7 or the location where the leakage occurs can be automatically tracked, so as to adjust the movement direction of the high-definition wireless camera 4-2, the optical tracer 4-3 and the ultraviolet radio frequency device 4-4 in real time. The transparent fixed nest 4-1 is fixed in the formation 8-2 under the traction of the optical fiber 10.

[0052] The optical tracking and tracing monitoring module 4 can automatically track the position of the leakage port 7 and rotate in real time to adjust the position toward the leakage port. The tracking principle of the optical tracking and tracing monitoring module 4 is to accurately track the leakage port 7 and rotate it in real time by analyzing the dynamic flow position of the water body in the video or image.

[0053] The optical tracking monitoring module 4 adopts the principle of "eye" and "mirror", such as Figure 3 As shown, the high-definition wireless camera 4-2, the optical tracer 4-3, and the ultraviolet radio frequency device 4-4 are used as targets. When the mixed soil with tracer materials meets water, or when the water source with tracer materials meets the ultraviolet light emitted by the ultraviolet radio frequency device 4-4, they absorb light to form a bright crystal "mirror". Therefore, the target can accurately or precisely capture the changes in the mirror, so as to obtain an accurate image of the light and shadow of the soil.

[0054] The data acquisition module 5 is implemented by a computer, which simultaneously controls the start and stop of the optical tracking and tracing monitoring module 4, and controls the operating status of the high-definition wireless camera 4-2, the optical tracking and tracing device 4-3, and the ultraviolet radio frequency device 4-4. A storage module is provided, which can support the storage and processing of massive images, graphs, texts and other data in different formats, integrates high-throughput algorithms such as signal denoising, data fusion, and space-time domain conversion, and can process the images transmitted by the optical tracking and tracing monitoring module 4 through the optical fiber 10 to quickly generate dynamic, high-frame visual images. The data acquisition module 5 supports local data storage and upload to the cloud system mode, which improves data security, efficiency and timeliness.

[0055] The intelligent rainfall module 1 and the pipeline leakage module 2 are respectively automatically output by the control platform 3 to near-real rainfall conditions and pipeline leakage conditions. The control platform 3 can realize free switching between the sub-modules of the intelligent rainfall module 1 and the pipeline leakage module 2. The sub-modules can realize parallel operation and determine a type of rainfall mode, which can adaptively match the pipeline leakage module 2. The pipeline leakage module 2, the intelligent rainfall module 1 and the control platform 3 are wirelessly transmitted, supplemented by wired optical fiber 10 transmission (not shown in the figure), so as to realize lightweight and rapid control instructions. The optical tracking and tracing monitoring module 4 is arranged above the pipeline leakage port 7, and the monitoring data obtained by monitoring is transmitted to the data acquisition module 5. The transmission mode of the optical tracking and tracing monitoring module 4 and the data acquisition module 5 is mainly optical fiber 10 transmission, supplemented by wireless transmission, to ensure safe and stable data transmission, and the start and stop of the optical tracking and tracing monitoring module 4 and the operating status of each module are controlled by the data acquisition module 5. This optical tracking and tracing monitoring module 4 can capture the situation of the leakage port 7 under the same direction of rainfall penetration force and leakage erosion force, realize the visual monitoring of the whole process of adhesion-migration-movement-migration of soil particles around the pipeline under the action of rainfall penetration force and leakage erosion, and truly reproduce the soil penetration saturation degree and peeling migration mechanism.

[0056] When the device is working, the intelligent rainfall module 1 and the pipeline leakage module 2 are started at the same time, and the high-definition wireless camera 4-2, the optical tracer 4-3, and the ultraviolet radio frequency device 4-4 of the optical tracking and tracing monitoring module 4 are started through the data acquisition module 5 to run simultaneously, and the ultraviolet radio frequency device 4-4 emits ultraviolet rays, and the high-definition wireless camera 4-2 automatically tracks the leakage port 7 according to the ultraviolet rays, and then the optical tracer 4-3 starts to capture the microscopic movement of soil particles around the leakage port until the light and shadow phase changes, and captures and memorizes the light and shadow intensity, brightness, and time characteristics at high frequency, and generates light and shadow tracing image data from these captured features through the optical fiber 1 0 is transmitted to the data acquisition module 5, the high-definition wireless camera 4-2 cooperates with the ultraviolet radio frequency device 4-4 to work, firstly, the ultraviolet radio frequency device 4-4 emits ultraviolet light to the stratum to excite and enhance the luminescence of the tracer material in the soil at the location of the leakage port 7 or the outflowing water body, and then the high-definition wireless camera 4-2 tracks and confirms the location of the leakage port 7. After the location of the leakage port 7 is determined, the optical tracer 4-3 automatically rotates and starts working. The high-definition wireless camera 4-2 and the optical tracer 4-3 transmit the captured image data to the data acquisition module 5 through the optical fiber. The image data captured by the high-definition wireless camera 4-2 is as follows: Figure 5 As shown, the image data captured by the optical tracking device 4-3 is as follows Figure 4 shown. Figure 4 The mesoscopic characteristics of soil particles are separated and migrated to cavitation. The visualization of mesoscopic characteristics solves the current difficulty in capturing the mesoscopic erosion characteristics of soil particles and reveals the mechanism of soil penetration, saturation, stripping and migration. Figure 5 It is an optical image, reflecting the macroscopic cavitation development process of the soil around the leakage port. That is to say, after the entire device is started, the ultraviolet radio frequency device 4-4 first emits ultraviolet light to irradiate the soil in the direction of the pipeline below the transparent fixed nest 4-1. After the leakage occurs, the optical tracking device 4-3 tracks the bright mirror formed around the leakage port 7, thereby locating or determining the position of the leakage port 7, and then the high-definition wireless camera 4-2 starts to record the image data at the location of the leakage port 7, and then transmits the image data to the acquisition module 5. In the whole process, the optical tracking monitoring module 4 can independently operate to complete the leakage port positioning, video recording and image data transmission.

[0057] The optical shadow tracking monitoring module 4 records light and shadow to track the adhesion, migration and cavity formation process of soil under the action of rainfall infiltration and leakage erosion. The captured images can clearly show the adhesion, migration and cavity results of rainfall and leakage. When transmitted to the data acquisition module 5, there is no need for further data mining and analysis, thereby simplifying the entire monitoring process.

[0058] As an embodiment disclosed by the present invention, the present invention also provides an implementation method of a soil cavity visualization physical device for rainfall infiltration and seepage erosion in the same direction, the method is implemented by the device, and includes: (1) starting a control platform, an intelligent rainfall module, a pipeline leakage module and a rainfall component, the control platform sends instructions to the intelligent rainfall module and the pipeline leakage module, the intelligent rainfall module and the pipeline leakage module set corresponding parameters according to the instructions, and according to the parameters, rainfall is applied to the pavement structure layer of the stratum model module through the rainfall component, and water is leaked to the stratum of the stratum model module through the leakage port of the drainage pipeline;

[0059] (2) The data acquisition module starts the optical shadow tracing monitoring module. The ultraviolet radio frequency component of the optical shadow tracing monitoring module emits ultraviolet rays to the leakage port of the formation model module. After the high-definition wireless camera tracks and confirms the leakage port based on the ultraviolet rays, the optical tracer of the optical tracer monitoring module begins to capture the microscopic movement of soil particles until the light and shadow phase changes, captures and memorizes the light and shadow intensity, brightness and time characteristics to generate a microscopic light and shadow tracing visualization image. At the same time, the high-definition wireless camera captures and records the macroscopic cavitation image of the soil under rainfall and leakage conditions, and transmits the image to the data acquisition module through optical fiber.

[0060] Specifically, the working process of this device is as follows:

[0061] First, input the parameters such as rainfall speed, rainfall time, rainfall amount and / or rainfall intensity to the rainfall speed, rainfall time and rainfall amount module 1-1 and the rainfall intensity automatic switching module 1-2 through the rainfall parameter panel 3-3 of the control platform 3, input the pipeline water pressure, flow rate and flow rate parameters to the water pressure control module 2-1 and the flow rate control module 2-2 through the pipeline parameter panel 3-1, press the pipeline simulation start and stop button 3-2 to start the pipeline environment simulation module 2-3, press the rainfall simulation start and stop button 3-4 to start the rainfall environment simulation module 1-3, and then the intelligent rainfall module 1 and the pipeline leakage module 2 start to work simultaneously, and the water body (or the water body with tracer material added) in the free water container device 12 is The material) passes through the high-strength flexible pipe 9 and the rainfall component 11 to evenly rain down to the pavement structure layer 8-1 of the stratum model box 8, and leaks through the drainage pipeline 6 in the stratum 8-2 through the leakage port 7. At the same time, the optical tracking and tracing monitoring module 4 is opened through the data acquisition module 5 to ensure normal operation. The optical tracking and tracing monitoring module 4 first confirms the location of the leakage port 7, and then monitors the location of the leakage port 7. The monitoring and shooting obtains visual image data, which is transmitted to the data acquisition module 5 through the optical fiber 10. The data acquisition module 5 observes and collects the microscopic characteristics of soil erosion and the visual image of the cavity in real time until the end.

[0062] The present invention can capture the real process of soil particles sticking, moving, moving and moving out around the pipeline under the action of the same-direction body force of rainfall penetration and leakage erosion, realize the tracking of soil particles from microscopic movement to light and shadow phase color change, capture and remember the intensity, brightness and darkness, and time characteristics of light and shadow at high frequency, and find the soil penetration saturation degree and peeling migration characteristics. In this way, the disaster-causing mechanism of soil cavitation under the action of rainfall penetration and leakage erosion can be mastered, providing strong scientific theoretical support for the prevention and control of urban road collapse disasters. The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge in the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, and should all be within the scope of protection of the claims attached to the present invention.

Claims

1. A physical device for visualizing soil cavities with rainfall penetration and seepage erosion acting in the same direction, characterized in that: The device includes: an intelligent rainfall module, a pipeline leakage module, an optical tracking and tracing monitoring module, a control platform, a data acquisition module and a formation model module. The intelligent rainfall module and pipeline leakage module are integrated into the control platform, and the intelligent rainfall module starts the device to implement near-real rainfall according to the input real rainfall conditions; The pipeline leakage module starts the device according to the input pipeline operation conditions to implement near-real pipeline operation; The optical tracking and tracing monitoring module is arranged in the stratum model module, and is used to photograph the adhesion and migration of the soil in the stratum model module under the action of rainfall and leakage; The control platform controls the actions of the intelligent rainfall module and the pipeline leakage module, and then realizes the monitoring of rainfall and leakage of the formation model module; The acquisition module is connected to the optical tracking monitoring module and is used to receive the images taken by the module.

2. The device according to claim 1, characterized in that The intelligent rainfall module includes a connected rain speed, rain duration and rainfall amount module, a rain intensity automatic switching module and a rainfall environment simulation module. The rain speed, rain duration and rainfall amount module determines the rainfall speed, time and volume parameters according to the instructions sent by the control platform; the rain intensity automatic switching module automatically switches the rainfall intensity parameters of different time periods according to the instructions sent by the control platform; and the rainfall environment simulation module simulates near-real rainfall in the test environment according to these parameters.

3. The device according to claim 1 or 2, characterized in that: The pipeline leakage module includes a connected water pressure control module, a flow rate control module and a pipeline environment simulation module. The water pressure control module determines the pipeline water pressure parameters according to the instructions sent by the control platform; the flow rate control module determines the pipeline water flow and flow rate parameters according to the instructions sent by the control platform; the pipeline environment simulation module simulates the near-real pipeline operation status under the test environment based on these parameters.

4. The device according to claim 3, characterized in that The formation model module includes a formation model box and a rainfall component; the rainfall component is connected to the control platform and is used to rain on the formation model box according to the instructions sent by the control platform; the formation model box includes a pavement structure layer and a formation arranged up and down, and the pavement structure layer is arranged below the rainfall component.

5. The device according to claim 4, characterized in that At least one drainage pipeline is arranged in the stratum, at least one leakage opening is arranged on the drainage pipeline, and both the rainfall device and the drainage pipeline are connected to the control platform.

6. The device according to claim 1, characterized in that The device further comprises a free water container, and the free water container is connected to the control platform via a high-strength flexible pipe.

7. The device according to claim 5, characterized in that The optical tracking and tracing monitoring module includes a transparent fixed nest, a high-definition wireless camera, an optical tracking image tracker, an ultraviolet radio frequency component and a battery. The high-definition wireless camera, the optical tracking image tracker, the ultraviolet radio frequency component and the battery are integrated into the transparent fixed nest.

8. The device according to claim 2, characterized in that The optical tracking monitoring module and the data acquisition module are connected by optical fiber.

9. The device according to claim 5, characterized in that Tracer materials are mixed in the soil around the leakage point, or tracer materials are added to the water source used for rainfall or leakage.

10. A method for implementing a physical device for visualizing soil cavities with rainfall penetration and seepage erosion in the same direction, characterized in that: The method is implemented by using the device according to any one of claims 1 to 9, including: (1) starting the control platform, the intelligent rainfall module, the pipeline leakage module and the rainfall component, the control platform sends instructions to the intelligent rainfall module and the pipeline leakage module, the intelligent rainfall module and the pipeline leakage module set corresponding parameters according to the instructions, and according to the parameters, rainfall is applied to the pavement structure layer of the stratum model module through the rainfall component, and water is leaked to the stratum of the stratum model module through the leakage port of the drainage pipeline; (2) The data acquisition module starts the optical shadow tracking monitoring module. The ultraviolet radio frequency device of the optical shadow tracking monitoring module emits ultraviolet rays. At the same time, the optical tracer of the optical tracer monitoring module begins to capture the microscopic movement of soil particles until the light and shadow phase change, determine the location of the leakage point, and capture and remember the light and shadow intensity, brightness and time characteristics. At the same time, the high-definition wireless camera records the visual image of the soil cavity under rainfall and leakage, and transmits the image to the data acquisition module through optical fiber.

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