Test system and evaluation method suitable for analyzing evolution behavior of anti-clogging structure

Abstract

The present application belongs to the technical field of solid-liquid two-phase flow test, and provides a test system and an evaluation method suitable for analyzing the evolution behavior of anti-clogging structure, wherein the test system comprises a model device, a gas-water separation device, a vacuum pumping system and a real-time monitoring assembly; the model device is connected with the gas-water separation device through a first vacuum pipeline, and the gas-water separation device is connected with the vacuum pumping system through a second vacuum pipeline; a vacuum gauge is arranged on the gas-water separation device; the real-time monitoring assembly comprises an intelligent real-time microscopic monitoring system, a macroscopic test system and a data analysis system; the data analysis system processes and analyzes the obtained data; and the evaluation method is a macro-microscopic theoretical evaluation method for analyzing the evolution behavior of anti-clogging structure. The present application is favorable for further in-depth research on the anti-clogging mechanism of the filter drainage structure, and provides scientific support for the design of the vacuum filtration anti-clogging technical scheme.

Description

Technical Field

[0001] This invention belongs to the field of solid-liquid two-phase flow test technology, specifically relating to a test system and evaluation method suitable for analyzing the evolution behavior of anti-clogging structures. Background Technology

[0002] Staged vacuum filtration drainage technology, belonging to filtration and separation technology, is a low-carbon, environmentally friendly, and cost-effective technology. The particulate structure layer in the filtration drainage structure is gradually formed by a coarsely dispersed system under continuous vacuum filtration pressure. Therefore, the clogging and anti-clogging mechanisms of the filtration drainage structure under vacuum filtration pressure both depend on the evolutionary behavior of the filtration drainage structure. However, current research on staged vacuum filtration drainage technology mainly focuses on the macroscopic analysis of filtration drainage effects, without conducting a comprehensive macro- and microscopic analysis of the evolutionary mechanism and mechanical behavior of the anti-clogging structure specific to the characteristics of staged vacuum filtration drainage technology. Therefore, it is necessary to propose a macro- and microscopic system and method suitable for analyzing the evolutionary behavior of the anti-clogging structure in filtration drainage, and to further deepen the research on the "macro- and microscopic mechanisms of the evolution of the anti-clogging structure in staged vacuum filtration drainage" from a macro- and microscopic perspective, thereby providing theoretical support for vacuum filtration anti-clogging technology. Summary of the Invention

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this invention is to provide an experimental system suitable for analyzing the evolution behavior of anti-clogging structures, thereby facilitating further in-depth research on the anti-clogging mechanism of filtration and drainage structures and providing theoretical support for vacuum filtration anti-clogging technology.

[0004] Another objective of this invention is to provide a macro- and micro-level theoretical evaluation method suitable for analyzing the evolutionary behavior of anti-clogging structures.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] A test system suitable for analyzing the evolution behavior of anti-clogging structures, including a model device for loading samples, a gas-liquid separation device, a vacuum system, and real-time monitoring components;

[0007] The model device is connected to the gas-water separation device via a first vacuum pipe, and the gas-water separation device is connected to the vacuum system via a second vacuum pipe; the gas-water separation device is equipped with a vacuum gauge for monitoring the vacuum level of its internal cavity;

[0008] The real-time monitoring component includes an intelligent real-time microscopic monitoring system for tracking and monitoring the evolution characteristics of the microstructure of the sample, a macroscopic testing system for acquiring the macroscopic physical and mechanical properties of the sample, and a data analysis system. The intelligent real-time microscopic monitoring system monitors the evolution characteristics of the microstructure of the sample in the model device online in real time and transmits the monitored data to the data analysis system. The macroscopic testing system monitors and tests the physical and mechanical properties of the sample in the model device and transmits the obtained data to the data analysis system.

[0009] The data analysis system processes and analyzes the acquired data.

[0010] Preferably, the intelligent real-time microscopic monitoring system includes a host, an imaging probe, and a supporting software system; when monitoring the evolution of the anti-clogging structure of the sample in the model device in real time online, the imaging probe extends into the central axis of the inner cavity of the model device at a preset height and perpendicular to the outer wall of the model device.

[0011] Preferably, the macroscopic testing system includes an automatic data acquisition instrument, an interface settlement monitoring instrument, a pore water pressure sensor, and conventional indoor geotechnical testing equipment; the interface settlement monitoring instrument and the pore water pressure sensor are electrically connected to the automatic data acquisition instrument, and the automatic data acquisition instrument automatically acquires the sample interface settlement data monitored by the settlement monitoring instrument and the pore water pressure data at different heights in the sample detected by the pore water pressure sensor; the conventional indoor geotechnical testing equipment includes soil particle composition testing instruments, soil moisture content testing instruments, soil density testing instruments, and triaxial testing equipment.

[0012] Preferably, the outer surface of the model device is provided with a scale for real-time observation of the interface changes of the sample during the experiment.

[0013] A macro- and micro-level theoretical evaluation method suitable for analyzing the evolutionary behavior of anti-clogging structures includes the following steps:

[0014] S1. Load a solid-liquid two-phase flow sample into the model device, process the solid-liquid two-phase flow sample, obtain a typical test sample, and conduct physical tests on the typical test sample through a macroscopic test system to obtain the physical index data of the typical test sample before sedimentation.

[0015] S2. While conducting the physical test in step S1, a static intermittent settlement test is carried out on the typical test samples in the model device.

[0016] S3. Based on the evaluation criteria for static intermittent settlement stability, determine whether the typical test sample in the model device has reached the static intermittent settlement stability state; if the typical test sample has reached the static intermittent settlement stability state, proceed to step S4.

[0017] S4. According to the preset graded vacuum load loading plan, the model device and the gas-water separation device are evacuated by the vacuum system.

[0018] During the vacuuming process, the microstructure evolution characteristics and physical indicators of typical test samples in the model device are monitored and detected by the intelligent real-time micro-monitoring system and the macro-experiment system, respectively, to obtain real-time microstructure evolution characteristic data and real-time physical indicator data of typical test samples during the staged vacuuming process.

[0019] S5. After completing the graded vacuum load loading plan, conduct indoor physical and mechanical tests on typical test samples after vacuum consolidation through a macroscopic test system to obtain consolidation physical and mechanical index data of typical test samples.

[0020] S6. Based on the pre-settlement physical index data, real-time microstructure evolution characteristic data, real-time physical index data, and consolidation physical and mechanical index data from steps S1, S4, and S5, analyze and evaluate the macro- and micro-structural evolution behavior of the typical test sample.

[0021] Preferably, in step S4, the intelligent real-time microscopic monitoring system monitors and detects the microstructural evolution characteristics of typical test samples in the model device, including average chord length, average porosity, and average fractal dimension.

[0022] Preferably, in step S4, the macroscopic test system monitors and detects the physical indicators of typical test samples in the model device, including particle composition, moisture content, density, and degree of consolidation; in addition, it observes and records the interface sedimentation value of typical test samples in real time.

[0023] Preferably, in step S5, the consolidation physical and mechanical properties data of the typical test sample include the particle composition, water content, density, and triaxial shear strength index of soil samples at different depths. The triaxial shear strength index includes effective cohesion and effective internal friction angle.

[0024] Preferably, in step S6, after analyzing and evaluating the macro- and micro-structural evolution behavior of the test sample, a macro- and micro-theoretical evaluation standard for the evolution of the anti-clogging structure during the staged vacuum consolidation process of solid-liquid two-phase flow is established.

[0025] As a preferred method, the macro- and micro-level theoretical evaluation criteria for the evolution of anti-clogging structures during the staged vacuum consolidation process of solid-liquid two-phase flow are obtained through the following steps:

[0026] (1) Based on the intelligent real-time microscopic monitoring system in step S4, the real-time microstructural evolution characteristics of typical test samples in the model device are monitored to obtain... ~The characteristics of the time curve;

[0027] Based on the macroscopic experimental system in step S4, the typical physical indicators of the test samples in the model device are monitored in real time to obtain the curve characteristics of (S, U) ~ time.

[0028] Where, δ / The average porosity of the microstructure image during the staged vacuuming process. denoted as fractal dimension of the microstructure image during the staged vacuuming process, S is the interface settlement value, and U is the degree of consolidation.

[0029] (2) Based on the macroscopic test system in step S5, conduct indoor physical and mechanical tests on typical test samples after vacuum consolidation to obtain consolidation physical and mechanical index data of typical test samples.

[0030] Where w is the moisture content and c is the effective cohesion. The effective internal friction angle;

[0031] (3) Based on the results obtained in steps (1) and (2) The characteristics of the time curve, the characteristics of the (S, U) time curve, and the physical and mechanical properties of the consolidation. A macro- and micro-level theoretical evaluation standard for the evolution of anti-clogging structures during staged vacuum consolidation in solid-liquid two-phase flow is established, and its functional expression is:

[0032] Compared with the prior art, the beneficial effects of the present invention are:

[0033] The experimental system and evaluation method of this invention, tailored to the characteristics of graded vacuum filtration drainage technology, conduct real-time macroscopic and microscopic monitoring and detection of the evolution mechanism of the filtration drainage anti-clogging structure, and perform a comprehensive analysis of the evolution mechanism of the filtration drainage anti-clogging structure combining macroscopic and microscopic mechanical behavior. This provides theoretical and scientific support for the design of vacuum filtration anti-clogging technology solutions, thereby facilitating targeted optimization of the filtration drainage anti-clogging structure. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a simplified structural diagram of the experimental system applicable to analyzing the evolution behavior of anti-clogging structures according to the present invention.

[0036] Figure 2This is a schematic diagram of the loading plan for graded vacuum loads.

[0037] in:

[0038] 1-Model device, 2-Gas-liquid separation device, 3-Vacuum system, 4-Data analysis system, 5-Macroscopic test system, 6-Intelligent real-time microscopic monitoring system, 7-Vacuum gauge. Detailed Implementation

[0039] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of the present invention; the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0041] Example 1

[0042] See Figure 1 This embodiment discloses an experimental system suitable for analyzing the evolution behavior of anti-clogging structures, including a model device 1 for loading samples, a gas-water separation device 2, a vacuum system, and a real-time monitoring component;

[0043] The model device 1 is connected to the gas-water separation device 2 via a first vacuum pipe, and the gas-water separation device 2 is connected to the vacuum system via a second vacuum pipe; the gas-water separation device 2 is equipped with a vacuum gauge 7 for monitoring the vacuum level of its internal cavity;

[0044] The real-time monitoring component includes an intelligent real-time microscopic monitoring system 6 for tracking and monitoring the evolution characteristics of the microstructure of the sample, a macroscopic testing system 5 for acquiring the macroscopic physical and mechanical properties of the sample, and a data analysis system 4. The intelligent real-time microscopic monitoring system 6 monitors the evolution characteristics of the microstructure of the sample in the model device 1 online in real time and transmits the monitored data to the data analysis system 4. The macroscopic testing system 5 monitors and tests the physical and mechanical properties of the sample in the model device 1 and transmits the acquired data to the data analysis system 4.

[0045] The data analysis system 4 processes and analyzes the acquired data; the data analysis system 4 includes a computer and a data post-processing analysis system, which includes a professional post-processing software system corresponding to the intelligent real-time microscopic monitoring system 6 and a professional post-processing software system corresponding to the macroscopic experimental system 5.

[0046] In this embodiment, the model device 1 is cylindrical in shape, made of acrylic sheet, and has a diameter of [missing information]. The sample height is 80cm. The gas-liquid separator 2 is cylindrical, made of acrylic sheet, and has a diameter of [missing information].

[0047] The intelligent real-time microscopic monitoring system 6 includes a host, an imaging probe, and supporting software. When monitoring the anti-clogging structural evolution of the sample in the model device 1 online in real time, the imaging probe extends into the central axis of the inner cavity of the model device 1 at a preset height, perpendicular to the outer wall. Specifically, the imaging probe can be positioned 20 cm from the bottom of the inner cavity of the model device 1. Furthermore, the intelligent real-time microscopic monitoring system 6 of this embodiment employs PVM particle microscopy technology, a miniaturized probe-type microscopy technique. The PVM probe can be directly placed in a solid-liquid two-phase flow to perform real-time online monitoring of the microstructure of solid or liquid particles, obtaining microscopic images of the shape, size changes, and polymerization / breakage phenomena of the research object, without requiring sampling, dilution, or sample preparation.

[0048] The macroscopic testing system 5 includes an automatic data acquisition instrument, an interface settlement monitoring instrument, a pore water pressure sensor, and conventional indoor geotechnical testing equipment. The interface settlement monitoring instrument and the pore water pressure sensor are electrically connected to the automatic data acquisition instrument. The automatic data acquisition instrument automatically acquires the sample interface settlement data monitored by the settlement monitoring instrument and the pore water pressure data at different heights in the sample detected by the pore water pressure sensor. The conventional indoor geotechnical testing equipment includes soil particle composition testing instruments, soil moisture content testing instruments, soil density testing instruments, and triaxial testing equipment, etc.

[0049] The outer surface of the model device 1 is marked with a scale for real-time observation of the interface changes of the sample during the experiment. Based on the scale on the model device 1, the interfacial distance between the clear liquid and the settled solids is read periodically to plot the curve of interface sedimentation over time and to analyze and track the interface sedimentation.

[0050] See Figures 1-2 This embodiment also discloses a macro- and micro-level theoretical evaluation method suitable for analyzing the evolution behavior of anti-clogging structures, including the following steps:

[0051] S1. A solid-liquid two-phase flow sample is loaded into the model device 1. The sample is then processed and stirred to form a typical test sample. Physical tests are conducted on the typical test sample using conventional indoor geotechnical testing equipment in the macroscopic testing system 5 to obtain the pre-settlement physical index data of the typical test sample. The pre-settlement physical index data includes particle composition, moisture content, and density.

[0052] S2. While conducting the physical test in step S1, a static intermittent settlement test is carried out on the typical test sample in model device 1.

[0053] S3. Based on the evaluation criteria for static intermittent settlement stability, determine whether the typical test sample in the model device 1 has reached the static intermittent settlement stability state; if the typical test sample has reached the static intermittent settlement stability state, proceed to step S4.

[0054] S4. According to the preset graded vacuum load loading plan, the model device 1 and the gas-water separation device 2 are evacuated using the vacuum system. The graded vacuum load loading plan for this embodiment can be found in the appendix. Figure 2 ; among which attached Figure 2 Two loading plan schemes are given in the document.

[0055] During the vacuuming process, the intelligent real-time microscopic monitoring system 6 monitors and detects the microstructural evolution characteristics of typical test samples in model device 1. The macroscopic testing system 5 uses an automatic data acquisition instrument, an interface sedimentation monitor, and a pore water pressure sensor to monitor and detect the physical properties of the typical test samples in model device 1. Real-time microstructural evolution characteristic data and real-time physical property data of the typical test samples during the staged vacuuming process are acquired. The real-time microstructural evolution characteristic data includes average chord length, average porosity, and average fractal dimension; the real-time physical property data includes particle composition, water content, density, and degree of consolidation. In addition, the interface sedimentation value of the typical test samples is observed and recorded in real time.

[0056] S5. After completing the graded vacuum load loading plan, conduct indoor physical and mechanical tests on typical test samples after vacuum consolidation using the indoor conventional geotechnical testing equipment in the macroscopic test system 5 to obtain the consolidation physical and mechanical index data of the typical test samples. Among them, the consolidation physical and mechanical index data include the particle composition, water content, density, and triaxial shear strength index of soil samples at different depths. The triaxial shear strength index includes effective cohesion and effective internal friction angle.

[0057] S6. Based on the pre-settlement physical index data, real-time microstructure evolution characteristic data, real-time physical index data, and consolidation physical and mechanical index data from steps S1, S4, and S5, analyze and evaluate the macro- and micro-structural evolution behavior of the typical test sample.

[0058] Furthermore, after completing step S6 to analyze and evaluate the macro- and micro-structural evolution behavior of the test samples, a macro- and micro-theoretical evaluation standard for the anti-clogging structural evolution during the staged vacuum consolidation process of solid-liquid two-phase flow is established.

[0059] Specifically, the macro- and micro-level theoretical evaluation criteria for the evolution of anti-clogging structures during the staged vacuum consolidation process of solid-liquid two-phase flow are obtained through the following steps:

[0060] (1) Based on the intelligent real-time microscopic monitoring system 6 in step S4, the real-time microstructural evolution characteristics of typical test samples in model device 1 are monitored to obtain... ~The characteristics of the time curve;

[0061] Based on the macroscopic test system 5 in step S4, the typical test samples in the model device 1 are monitored in real time to obtain the curve characteristics of (S, U) ~ time.

[0062] Where, δ / The average porosity of the microstructure image during the staged vacuuming process. denoted as fractal dimension of the microstructure image during the staged vacuuming process, S is the interface settlement value, and U is the degree of consolidation.

[0063] (2) Based on the macroscopic test system 5 in step S5, conduct indoor physical and mechanical tests on typical test samples after vacuum consolidation to obtain consolidation physical and mechanical index data of typical test samples.

[0064] Where w is the moisture content and c is the effective cohesion. The effective internal friction angle;

[0065] (3) Based on the results obtained in steps (1) and (2) The characteristics of the time curve, the characteristics of the (S, U) time curve, and the physical and mechanical properties of the consolidation. A macro- and micro-level theoretical evaluation standard for the evolution of anti-clogging structures during staged vacuum consolidation in solid-liquid two-phase flow is established, and its functional expression is:

[0066] In step S3 of this embodiment, when determining whether the typical test sample in model device 1 has reached a static intermittent settlement stability state, the evaluation criteria for static intermittent settlement stability are obtained through the following steps:

[0067] (1) Load the solid-liquid two-phase flow sample into the model device 1, stir it evenly to form a test sample, and start the static intermittent sedimentation test.

[0068] (2) Perform interface sedimentation tracking tests between the clear liquid and the settled solid in the typical sample in the model device 1 to obtain the curve of interface sedimentation changing with time; use the intelligent real-time microscopic monitoring system 6 to track and analyze the microscopic structural features of the solid phase evolution in the typical sample in real time to obtain the curve of microscopic structural features changing with time; use the macroscopic test system 5 to detect and analyze the physical and mechanical indicators of the solid phase evolution in the typical sample to obtain the curve of physical and mechanical indicators changing with time.

[0069] (3) Combining the curves of interface settlement over time, the curves of microstructural features over time, and the curves of physical and mechanical indices over time, analyze and determine whether the typical sample has reached a static intermittent settlement stability state.

[0070] Once the typical sample in model device 1 reaches a stable static intermittent sedimentation state, proceed to step (4);

[0071] (4) Obtain a steady-state sample that has reached a stable settling state in the model device 1, and test the steady-state sample using the automatic data acquisition instrument in the macroscopic test system 5 to obtain the physical and mechanical properties of the steady-state sample.

[0072] (5) Based on the physical and mechanical properties of the steady-state sample, and the curves of interface settlement over time, microstructural features over time, and physical and mechanical properties over time when the static intermittent settlement steady state is reached in step (3), establish an evaluation standard for typical samples to reach the static intermittent settlement steady state based on macro and micro.

[0073] Specifically, in this embodiment, the cumulative change rate of average porosity is used as one of the evaluation indicators in the macro-micro evaluation criteria for reaching a static intermittent settlement stabilization state.

[0074] The formation of recently filled silt in different geographical locations can vary significantly, often resulting in substantial differences in its average porosity. Therefore, this embodiment introduces the "cumulative change rate of average porosity" as a dimensionless index to evaluate the self-weight sedimentation stability of recently filled silt in different geographical locations. Since the self-weight sedimentation stability of recently filled silt is influenced by various factors, such as the sedimentation environment (seawater and freshwater), sedimentation space dimensions (diameter and height of the indoor sedimentation tube), initial mud density, initial clay content, initial water content, and initial porosity, the cumulative change rate of porosity during the indoor settling period of recently filled silt under different conditions was statistically analyzed. According to the statistical results, the average cumulative change rate of porosity after indoor self-weight sedimentation stability of recently filled silt in different geographical locations ranges from 39.6% to 75.5%. Furthermore, previous research has shown that the larger the cross-sectional size of model device 1, the less the viscous resistance between the mud and the container wall affects the self-weight deposition of recently reclaimed silt. Therefore, the size of the deposition space, especially the cross-sectional size (such as the diameter), is one of the important factors affecting the stability of the self-weight deposition of recently reclaimed silt. In view of this, and in conjunction with model device 1 in this embodiment, this embodiment uses the cumulative change rate of the average porosity of 60%–70% as one of the unified evaluation indicators for the stability of the self-weight deposition of recently reclaimed silt in different geographical locations.

[0075] Furthermore, the clay content in the physical and mechanical indicators can be used as one of the evaluation indicators. Specifically, a larger value can be taken when the clay content is less than 50%, and a smaller value can be taken when the clay content is greater than 50%. The average fractal dimension in the microstructure characteristics can also be used as one of the evaluation indicators. By combining the three evaluation indicators proposed in this embodiment (cumulative change rate of average porosity, clay content, and average fractal dimension), an evaluation standard for the static intermittent sedimentation stability state based on macro and micro scales can be constructed.

[0076] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An experimental system suitable for analyzing the evolutionary behavior of anti-clogging structures, characterized in that, It includes a model device for loading the sample, a gas-liquid separation device, a vacuum system, and a real-time monitoring component; The model device is connected to the gas-water separation device via a first vacuum pipe, and the gas-water separation device is connected to the vacuum system via a second vacuum pipe; the gas-water separation device is equipped with a vacuum gauge for monitoring the vacuum level of its internal cavity; The real-time monitoring component includes an intelligent real-time microscopic monitoring system for tracking and monitoring the evolution characteristics of the microstructure of the sample, a macroscopic testing system for acquiring the macroscopic physical and mechanical properties of the sample, and a data analysis system. The intelligent real-time microscopic monitoring system monitors the evolution characteristics of the microstructure of the sample in the model device online in real time and transmits the monitored data to the data analysis system. The macroscopic testing system monitors and tests the physical and mechanical properties of the sample in the model device and transmits the obtained data to the data analysis system. The data analysis system processes and analyzes the acquired data; The intelligent real-time microscopic monitoring system includes a host, an imaging probe, and a supporting software system. When monitoring the evolution of the anti-clogging structure of the sample in the model device in real time, the imaging probe extends into the central axis of the inner cavity of the model device at a preset height and perpendicular to the outer wall of the model device. The macroscopic testing system includes an automatic data acquisition instrument, an interface settlement monitoring instrument, a pore water pressure sensor, and conventional indoor geotechnical testing equipment. The interface settlement monitoring instrument and the pore water pressure sensor are electrically connected to the automatic data acquisition instrument. The automatic data acquisition instrument automatically acquires the sample interface settlement data monitored by the settlement monitoring instrument and the pore water pressure data at different heights in the sample detected by the pore water pressure sensor. The conventional indoor geotechnical testing equipment includes soil particle composition testing instruments, soil moisture content testing instruments, soil density testing instruments, and triaxial testing equipment.

2. The experimental system for analyzing the evolutionary behavior of anti-clogging structures according to claim 1, characterized in that, The outer surface of the model device is marked with scales to observe the interface changes of the sample in real time during the experiment.

3. A macro- and micro-level theoretical evaluation method for analyzing the evolution behavior of anti-clogging structures based on the experimental system described in any one of claims 1-2, characterized in that, Includes the following steps: S1. Load a solid-liquid two-phase flow sample into the model device, process the solid-liquid two-phase flow sample, obtain a typical test sample, and conduct physical tests on the typical test sample through a macroscopic test system to obtain the physical index data of the typical test sample before sedimentation. S2. While conducting the physical test in step S1, a static intermittent settlement test is carried out on the typical test samples in the model device. S3. Based on the evaluation criteria for static intermittent settlement stability, determine whether the typical test samples in the model device have reached the static intermittent settlement stability state; If the typical test sample reaches a stable state of static intermittent sedimentation, then proceed to step S4; S4. According to the preset graded vacuum load loading plan, the model device and the gas-water separation device are evacuated by the vacuum system. During the vacuuming process, the microstructure evolution characteristics and physical indicators of typical test samples in the model device are monitored and detected by the intelligent real-time micro-monitoring system and the macro-experiment system, respectively, to obtain real-time microstructure evolution characteristic data and real-time physical indicator data of typical test samples during the staged vacuuming process. S5. After completing the graded vacuum load loading plan, conduct indoor physical and mechanical tests on typical test samples after vacuum consolidation through a macroscopic test system to obtain consolidation physical and mechanical index data of typical test samples. S6. Based on the pre-settlement physical index data, real-time microstructure evolution characteristic data, real-time physical index data, and consolidation physical and mechanical index data from steps S1, S4, and S5, analyze and evaluate the macro- and micro-structural evolution behavior of the typical test sample.

4. The macro- and micro-level theoretical evaluation method for analyzing the evolutionary behavior of anti-clogging structures according to claim 3, characterized in that, In step S4, the intelligent real-time microscopic monitoring system monitors and detects the microstructural evolution characteristics of typical test samples in the model device, including average chord length, average porosity, and average fractal dimension.

5. The macro- and micro-level theoretical evaluation method for analyzing the evolutionary behavior of anti-clogging structures according to claim 4, characterized in that, In step S4, the macroscopic test system monitors and detects the physical indicators of typical test samples in the model device, including particle composition, moisture content, density and degree of consolidation; in addition, it observes and records the interface sedimentation value of typical test samples in real time.

6. The macro- and micro-level theoretical evaluation method for analyzing the evolutionary behavior of anti-clogging structures according to claim 5, characterized in that, In step S5, the consolidation physical and mechanical properties data of the typical test sample include the particle composition, water content, density, and triaxial shear strength index of soil samples at different depths. The triaxial shear strength index includes effective cohesion and effective internal friction angle.

7. The macro- and micro-level theoretical evaluation method for analyzing the evolutionary behavior of anti-clogging structures according to claim 6, characterized in that, In step S6, after analyzing and evaluating the macroscopic and microscopic structural evolution behavior of the test sample, a macroscopic and microscopic theoretical evaluation standard for the anti-clogging structural evolution during the staged vacuum consolidation process of solid-liquid two-phase flow is established.

8. The macro- and micro-level theoretical evaluation method for analyzing the evolutionary behavior of anti-clogging structures according to claim 7, characterized in that, The macro- and micro-level theoretical evaluation criteria for the evolution of anti-clogging structures during staged vacuum consolidation of solid-liquid two-phase flow are obtained through the following steps: (1) Based on the intelligent real-time microscopic monitoring system in step S4, the real-time microstructural evolution characteristics of typical test samples in the model device are monitored to obtain... The characteristics of the time curve; Based on step S4, the macroscopic experimental system monitors the real-time physical indicators of typical test samples in the model device to obtain ( The characteristics of the time curve; in, The average porosity of the microstructure image during the staged vacuuming process. The fractal dimension of the microstructure image during the graded vacuuming process. S This represents the interface settlement value. U Degree of consolidation; (2) Based on the macroscopic test system in step S5, conduct indoor physical and mechanical tests on typical test samples after vacuum consolidation to obtain the consolidation physical and mechanical index data of typical test samples. ); in, w Moisture content, c For effective cohesion, The effective internal friction angle; (3) Based on the results obtained in steps (1) and (2) The characteristics of the time curve, ( The characteristics of the time curve and the physical and mechanical properties of consolidation ( Establish a macro- and micro-level theoretical evaluation standard for the evolution of anti-clogging structures during the staged vacuum consolidation process of solid-liquid two-phase flow, the functional expression of which is: .

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