Simulation test method and system for water and sediment regulation and control physical process of silt dam and medium
By designing a simulation test method for the physical process of water and sediment regulation in silt-retention dams, the problem of difficulty in characterizing the physical mechanism of water and sediment regulation in silt-retention dams in existing technologies has been solved. This method enables accurate simulation of water and sediment processes in silt-retention dams and analysis of regulation mechanisms, thereby improving the accuracy and reliability of the research.
Patent Information
- Application Number
- CN202512055003.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-04-24
AI Technical Summary
Existing research methods are insufficient to accurately characterize the physical mechanisms by which silt-retaining dams regulate water and sediment, and existing flume testing methods pay little attention to the role of silt-retaining dams in gullies.
By designing a simulation test method for the physical process of water and sediment regulation in silt-retention dams, including the selection of model sand and model size, establishing a physical model of the flume, conducting simulation tests on the physical process of water and sediment regulation, and analyzing the regulation mechanism and sediment retention capacity of silt-retention dams.
This study enables precise simulation of the regulation of water and sediment processes by silt-retaining dams in an indoor environment, improving the accuracy and reliability of research results, clarifying the physical mechanism of silt-retaining dams, and providing theoretical support for the construction of silt-retaining dam modules in distributed water and sediment models.
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Figure CN121920069A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of model testing technology, specifically to a simulation test method, system, and medium for the physical process of water and sediment regulation in silt-retaining dams. Background Technology
[0002] Silt-retaining dams are dam structures built in gullies at all levels in areas of soil erosion for the purpose of retaining sediment and silting up land. They play a vital role in regulating watershed runoff and sediment.
[0003] Silt-retention dams are key engineering facilities for soil and water conservation in the Loess Plateau region, playing an irreplaceable role in intercepting sediment, regulating flood peaks, and stabilizing gullies. A thorough understanding of their dynamic regulation mechanism of water and sediment is crucial for improving the physical mechanisms of water and sediment regulation by silt-retention dams. However, current research methods mainly rely on long-term, costly field observations. While these methods can obtain field data, they struggle to characterize the physical mechanisms of water and sediment regulation by silt-retention dams.
[0004] Physical model testing, as an effective research method for revealing the laws governing complex fluid motion, hinges on scaling down prototype engineering projects using rigorous similarity criteria, thereby achieving accurate simulation of these projects in a controlled indoor environment. However, existing flume testing methods primarily focus on the effects of engineering measures such as river reservoirs, landslide dams, and barrier dams on water and sediment, as well as research related to dam break mechanisms, with less consideration given to the water and sediment regulation effects of silt-retaining dams in gullies. Therefore, developing a simulation testing method for the physical processes of water and sediment regulation in silt-retaining dams is crucial. This method can directly characterize the physical processes of water and sediment regulation in silt-retaining dams and demonstrate the changes in various elements within these processes. Summary of the Invention
[0005] The purpose of this invention is to provide a simulation test method, system and medium for the physical process of water and sediment regulation by silt-retention dams, which to a certain extent restores the regulation mechanism of water and sediment processes by silt-retention dams under a secondary rainstorm flood process, thereby improving the physical mechanism of water and sediment regulation by silt-retention dams.
[0006] To achieve the above objectives, in a first aspect, the present invention provides a simulation test method for the physical process of water and sediment regulation in silt-retaining dams, comprising the following specific steps:
[0007] Based on the design data of silt-retention dams in the study area, the on-site investigation of dam body parameters, and the soil survey data of the dam reservoir area, an experimental scheme for simulating the physical process of water and sediment regulation in silt-retention dams was designed.
[0008] The size ratio of the model sand and the silt-retaining dam model was determined based on the designed test plan;
[0009] A flume physical model for simulating the physical process of water and sediment regulation in silt-retaining dams was established based on the size ratio of silt-retaining dams.
[0010] Simulation experiment of physical process of water and sediment regulation in silt-retaining dam based on flume physical model;
[0011] Based on the experimental results, the mechanism of water and sediment regulation and the ability of silt-retaining dams to trap sediment were analyzed.
[0012] The design scheme for simulating the physical process of water and sediment regulation in silt-retaining dams, based on the design data and on-site dam body parameter survey data of the silt-retaining dam in the study area, and the soil survey data of the dam and reservoir area, specifically includes collecting the design data parameters of the silt-retaining dam, historical observation data of hydrological stations, topographic data, and dam body parameter data of silt-retaining dams obtained through field surveys, as well as in-situ soil sampling and particle size distribution analysis data of the dam and reservoir area. Based on the above data, an experimental scheme for simulating the physical process of water and sediment regulation in silt-retaining dams is designed.
[0013] The process of determining the size comparison between the model sand and the silt-retention dam model according to the designed test plan includes the scale ratio of the silt-retention dam model, the initial selection of the model sand, and determining the similarity between the model sand and the prototype sand in terms of initiation and settlement.
[0014] The above-mentioned water tank physical model for simulating the physical process of water and sediment regulation in silt-retaining dams, based on the size comparison of silt-retaining dams, includes: the construction of a circulating water tank physical model and the construction of a model dam.
[0015] The simulation experiment of the physical process of water and sediment regulation of silt-retaining dams based on the water tank physical model is as follows: a silt-retaining dam model is set up in a glass water tank, and the flow rate and concentration of water entering the water tank are adjusted to achieve the flow rate and sediment content under different design scenarios; a preliminary experiment based on the physical process of water and sediment regulation of silt-retaining dams is carried out to determine the optimal experimental method; and the selected model sand is verified to meet the start-up similarity and settlement similarity criteria.
[0016] The verification of whether the selected model sand meets the initiation similarity and settlement similarity criteria includes:
[0017] Based on the Froude similarity criterion, the ratio of the starting velocity of the prototype sediment to that of the model sand was calculated; the critical starting velocity of the model sand was determined by a flume test to verify that the starting velocity of the model sand was similar to that of the prototype sand.
[0018] Based on the settling similarity criterion, the settling velocity ratio between the prototype sediment and the candidate model sand was calculated. By filling the water tank with water, keeping the water surface stable and allowing it to stand still, a static water settling test was conducted to determine the settling velocity of the model sand, verifying that the settling value of the model sand was similar to that of the prototype sand.
[0019] The analysis of the regulation mechanism and sediment retention capacity of the silt-retaining dam based on the experimental results specifically involves: collecting water samples at the outlet of the flume and calculating the sediment content of the water flow at the outlet of the silt-retaining dam at different times; collecting data on the pressure changes on the dam surface using pressure sensors installed on the dam surface; collecting data on the changes in flow velocity and water level upstream and downstream of the dam throughout the entire experiment using water level gauges and flow velocity meters installed in the flume; monitoring the changes in the sedimentation surface in real time using terrain scanning equipment installed on the sliding rails on the upstream flume wall of the silt-retaining dam; and obtaining the sedimentation status of the dam reservoir area using terrain scanning equipment after the experiment.
[0020] Secondly, the present invention provides a simulation test system for the physical process of water and sediment regulation in silt-retention dams, including a data collection module, which is used to design an experimental scheme for simulating the physical process of water and sediment regulation in silt-retention dams based on the design data of silt-retention dams in the study area, the on-site dam body parameter survey, the soil survey in the dam-reservoir area, and other data.
[0021] The scheme determination module is used to determine the size ratio of the model sand and the silt-retaining dam model based on the designed test scheme.
[0022] The experimental module simulates the physical process of water and sediment regulation in silt-retaining dams based on a flume physical model.
[0023] The analysis module analyzes the mechanism of water and sediment regulation and the sediment retention capacity of silt-retaining dams based on the experimental results.
[0024] Thirdly, the present invention provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of a simulation test method for the physical process of water and sediment regulation in a silt-retaining dam as described above.
[0025] The beneficial effects of using the above embodiments are:
[0026] This invention uses data from the design of silt-retention dams in the study area, on-site dam parameter surveys, and soil surveys in the dam-reservoir area as the basis for designing an experimental scheme to simulate the physical processes of water and sediment regulation by silt-retention dams. This allows for a relatively accurate reproduction of the characteristics of the study area. By calculating the scale of the silt-retention dam model and selecting appropriate sand for the model, the characteristics of water and sediment movement can be simulated more realistically, thereby improving the accuracy and credibility of the research results. Through the technical solution of this invention, the regulatory effect of silt-retention dams on water and sediment processes can be observed more intuitively, clarifying the regulatory mechanism of silt-retention dams on water and sediment processes, thus improving the physical mechanism of water and sediment regulation by silt-retention dams, and providing theoretical support for the construction of silt-retention dam modules in distributed water and sediment models. Attached Figure Description
[0027] Figure 1 A flowchart of a simulation test method for the physical process of water and sediment regulation in silt-retaining dams provided in an embodiment of the present invention;
[0028] Figure 2 A diagram showing the sediment concentration at the outlet of the silt-retaining dam in a simulation experiment of the physical process of water and sediment regulation in a silt-retaining dam.
[0029] Figure 3 Water level diagrams upstream and downstream of the dam for a simulation experiment of the physical process of water and sediment regulation in a silt-retaining dam;
[0030] Figure 4 The flow velocity diagrams before and after the dam are used in a simulation experiment of the physical process of water and sediment regulation in a silt-retaining dam.
[0031] Figure 5 Pressure diagram of the dam surface for simulating the physical process of water and sediment regulation in silt-retaining dams;
[0032] Figure 6 A diagram showing the siltation morphology behind a silt-retaining dam, used in a simulation experiment of the physical process of water and sediment regulation in a silt-retaining dam. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.
[0034] It should be noted that the descriptions involving "first," "second," etc., in this invention are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.
[0035] Example 1
[0036] Reference Figure 1 This embodiment describes a simulation test method for the physical process of water and sediment regulation in silt-retaining dams, such as... Figure 1 As shown, it includes:
[0037] Based on the design data of silt-retention dams in the study area, the on-site investigation of dam body parameters, and the soil survey data of the dam reservoir area, an experimental scheme for simulating the physical process of water and sediment regulation in silt-retention dams was designed.
[0038] The size ratio of the model sand and the silt-retaining dam model was determined based on the designed test plan;
[0039] A flume physical model for simulating the physical process of water and sediment regulation in silt-retaining dams was established based on the size ratio of silt-retaining dams.
[0040] Simulation experiment of physical process of water and sediment regulation in silt-retaining dam based on flume physical model;
[0041] Based on the experimental results, the mechanism of water and sediment regulation and the ability of silt-retaining dams to trap sediment were analyzed.
[0042] Specifically, it includes the following steps:
[0043] Step 1: Based on the design data of silt-retaining dams, historical observation data of hydrological stations, topographic data, and dam body parameter data obtained through field surveys, as well as in-situ soil sampling and particle size distribution analysis data in the dam-reservoir area, design an experimental scheme to simulate the physical process of water and sediment regulation in silt-retaining dams.
[0044] Step 2, determine the size ratio of the model sand and the silt-retaining dam model according to the design scheme; wherein, it includes:
[0045] 1. Scale calculation of silt-retention dam model, including:
[0046] The first formula is:
[0047] ;
[0048] in, For area scale, For volume scale, For horizontal scale;
[0049] The second formula is:
[0050] ;
[0051] in, For flow rate scale, For flow velocity scale, For time scale;
[0052] The third formula is:
[0053] ;
[0054] in, For roughness ratio, For the slope ratio of the ditch, The drag ratio;
[0055] The fourth formula is:
[0056]
[0057] in, The sand content ratio is measured by a scale. To carry sand and compare the strength of a ruler;
[0058] 2. Selection of model sand, including:
[0059] First, the type and particle size distribution of the prototype sand should be determined. Based on in-situ soil sampling and particle size distribution analysis data in the dam and reservoir area, the type and particle size composition of the prototype sand should be clarified, and the median particle size should be measured.
[0060] Furthermore, the model sand is initially selected, choosing model sand that is stable in performance, low in cost, and easy to process;
[0061] To satisfy the similarity conditions of water and sediment movement between the model and the prototype, the sand in the model and the sand in the prototype should satisfy the similarity criteria for initiation and settlement.
[0062] Furthermore, the starting speed was calculated using Schamov's starting speed formula, and the particle size ratio was then obtained:
[0063]
[0064] in, Where D is the initial velocity of sediment movement, h is the particle size, and h is the water depth. and Here, denoted as the density of water flow and sediment, respectively, and g is the acceleration due to gravity.
[0065] The formula for calculating the starting similar particle size ratio is:
[0066]
[0067] Furthermore, the sedimentation similarity was calculated using the STORKS static water sedimentation formula, and the particle size ratio was then obtained:
[0068]
[0069] in, For sediment settling velocity, The hydrodynamic viscosity coefficient;
[0070] The formula for calculating the similar particle size ratio in sedimentation is:
[0071]
[0072] Furthermore, based on the initially selected model sand, the particle size ratios for initiation similarity and sedimentation similarity are calculated, thereby calculating the particle size range of the model sand that satisfies the initiation and sedimentation similarity with the prototype sand.
[0073] As a further implementation method,
[0074] The target dam in this embodiment is a silt-retention dam. Based on the design data of the target silt-retention dam, historical rainstorm and flood observation data from the hydrological station in the area, topographic data, and in-situ soil samples from the dam reservoir area, as shown in the table below:
[0075] Table 1. Design parameters and flood data for the target silt-retaining dam.
[0076]
[0077] Table 2. Summary of Scale of Target Silt-Retaining Dam Models
[0078] Step 3: Based on the size ratio of the silt-retaining dam, establish a flume physical model to simulate the physical process of water and sediment regulation in the silt-retaining dam; this includes: the construction of the circulating flume physical model and the construction of the model dam.
[0079] Furthermore, the physical model of the water tank is a variable-slope glass water tank with a length of 9m, a width of 0.6m, and a height of 0.6m. The model dam is constructed on a scaled-down basis based on the parameters of the prototype dam.
[0080] Step 4: Conduct simulation tests of the physical processes of water and sediment regulation in silt-retention dams based on a water tank physical model; this includes: setting up a silt-retention dam model in a glass water tank, adjusting the flow rate and concentration of water entering the tank to achieve flow rate and sediment concentration under different design scenarios; conducting preliminary tests based on the physical processes of water and sediment regulation in silt-retention dams to determine the optimal test method; and verifying whether the selected model sand meets the similarity criteria for initiation and settlement.
[0081] Furthermore, the verification of whether the selected model sand meets the initiation similarity and settlement similarity criteria includes:
[0082] Based on the Froude similarity criterion, the ratio of the starting velocity of the prototype sediment to that of the model sand was calculated; the critical starting velocity of the model sand was determined by a flume test to verify that the starting velocity of the model sand was similar to that of the prototype sand.
[0083] Based on the settling similarity criterion, the settling velocity ratio between the prototype sediment and the candidate model sand was calculated; by filling the water tank with water, keeping the water surface stable and letting it stand still, the settling velocity of the model sand was determined by a static water settling test, verifying that the settling value of the model sand was similar to that of the prototype sand.
[0084] Step 5: Based on the experimental results, analyze the water and sediment regulation mechanism and sediment retention capacity of silt-retaining dams; including:
[0085] By collecting water samples at the outlet of the flume, the sediment content of the water flow at the outlet of the silt-retaining dam at different times was calculated, as shown in the figure;
[0086] Pressure sensors deployed on the dam surface are used to collect data on pressure changes on the dam surface, as shown in the figure.
[0087] Based on the water level gauges and flow velocity meters installed in the water tank, the characteristics of the changes in flow velocity and water level in front of and behind the dam were collected throughout the entire test process, as shown in the figure.
[0088] The changes in the siltation surface during the experiment were monitored in real time using a topographic scanning device mounted on a slide rail along the sidewall of the upstream flume of the siltation dam. After the experiment, the siltation status of the dam reservoir area was obtained using the topographic scanning device, as shown in the figure.
[0089] Furthermore, based on the above data, a prediction equation for the sediment content at the outlet of the silt-retaining dam is constructed to reveal the regulation mechanism of water and sediment by the silt-retaining dam and to clarify the silt-retaining dam's ability to intercept sediment and siltation under different scenarios.
[0090] Example 2
[0091] This embodiment provides a simulation test system for the physical process of water and sediment regulation in silt-retention dams, including a data collection module, which is used to design an experimental scheme for simulating the physical process of water and sediment regulation in silt-retention dams based on the design data of silt-retention dams in the study area, on-site dam body parameter surveys, soil surveys in the dam-reservoir area, and other data.
[0092] The scheme determination module is used to determine the size ratio of the model sand and the silt-retaining dam model based on the designed test scheme.
[0093] The experimental module simulates the physical process of water and sediment regulation in silt-retaining dams based on a flume physical model.
[0094] The analysis module analyzes the mechanism of water and sediment regulation and the sediment retention capacity of silt-retaining dams based on the experimental results.
[0095] The present invention provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of a simulation test method for the physical process of water and sediment regulation in a silt-retaining dam as described above.
[0096] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.
[0097] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.
[0098] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.
[0099] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.
[0100] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.
[0101] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, like read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.
[0102] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.
[0103] Those skilled in the art can implement the present invention in various variations without departing from its scope and spirit. For example, a feature of one embodiment can be used in another embodiment to obtain yet another embodiment. Any modifications, equivalent substitutions, and improvements made within the scope of the present invention's technical concept should be within the scope of the present invention.
Claims
1. A simulation test method for the physical process of water and sediment regulation in silt-retention dams, characterized in that, The specific steps include the following: Based on the design data of silt-retention dams in the study area, the on-site investigation of dam body parameters, and the soil survey data of the dam reservoir area, an experimental scheme for simulating the physical process of water and sediment regulation in silt-retention dams was designed. The size ratio of the model sand and the silt-retaining dam model was determined based on the designed test plan; A flume physical model for simulating the physical process of water and sediment regulation in silt-retaining dams was established based on the size ratio of silt-retaining dams. Simulation experiment of physical process of water and sediment regulation in silt-retaining dam based on flume physical model; Based on the experimental results, the mechanism of water and sediment regulation and the ability of silt-retaining dams to trap sediment were analyzed.
2. The simulation test method for the physical process of water and sediment regulation in silt-retention dams as described in claim 1, characterized in that, The design scheme for simulating the physical process of water and sediment regulation in silt-retaining dams, based on the design data and on-site dam body parameter survey data of the silt-retaining dam in the study area, and the soil survey data of the dam and reservoir area, specifically includes collecting the design data parameters of the silt-retaining dam, historical observation data of hydrological stations, topographic data, and dam body parameter data of silt-retaining dams obtained through field surveys, as well as in-situ soil sampling and particle size distribution analysis data of the dam and reservoir area. Based on the above data, an experimental scheme for simulating the physical process of water and sediment regulation in silt-retaining dams is designed.
3. The simulation test method for the physical process of water and sediment regulation in silt-retaining dams as described in claim 1, characterized in that, The process of determining the size comparison between the model sand and the silt-retention dam model according to the designed test plan includes the scale ratio of the silt-retention dam model, the initial selection of the model sand, and determining the similarity between the model sand and the prototype sand in terms of initiation and settlement.
4. The simulation test method for the physical process of water and sediment regulation in silt-retaining dams as described in claim 1, characterized in that, The above-mentioned water tank physical model for simulating the physical process of water and sediment regulation in silt-retaining dams, based on the size comparison of silt-retaining dams, includes: the construction of a circulating water tank physical model and the construction of a model dam.
5. The simulation test method for the physical process of water and sediment regulation in silt-retaining dams according to claim 1, characterized in that, The simulation experiment of the physical process of water and sediment regulation of silt-retaining dams based on the water tank physical model is as follows: a silt-retaining dam model is set up in a glass water tank, and the flow rate and concentration of water entering the water tank are adjusted to achieve the flow rate and sediment content under different design scenarios; a preliminary experiment based on the physical process of water and sediment regulation of silt-retaining dams is carried out to determine the optimal experimental method; and the selected model sand is verified to meet the start-up similarity and settlement similarity criteria.
6. The simulation test method for the physical process of water and sediment regulation in silt-retaining dams according to claim 5, characterized in that, The verification of whether the selected model sand meets the initiation similarity and settlement similarity criteria includes: Based on the Froude similarity criterion, the ratio of the starting velocity of the prototype sediment to that of the model sand was calculated; the critical starting velocity of the model sand was determined by a flume test to verify that the starting velocity of the model sand was similar to that of the prototype sand. Based on the settling similarity criterion, the settling velocity ratio between the prototype sediment and the candidate model sand was calculated. By filling the water tank with water, keeping the water surface stable and allowing it to stand still, a static water settling test was conducted to determine the settling velocity of the model sand, verifying that the settling value of the model sand was similar to that of the prototype sand.
7. The simulation test method for the physical process of water and sediment regulation in silt-retaining dams according to claim 1, characterized in that, The analysis of the regulation mechanism and sediment retention capacity of the silt-retaining dam based on the experimental results specifically involves: collecting water samples at the outlet of the flume and calculating the sediment content of the water flow at the outlet of the silt-retaining dam at different times; collecting data on the pressure changes on the dam surface using pressure sensors installed on the dam surface; collecting data on the changes in flow velocity and water level upstream and downstream of the dam throughout the entire experiment using water level gauges and flow velocity meters installed in the flume; monitoring the changes in the sedimentation surface in real time using terrain scanning equipment installed on the sliding rails on the upstream flume wall of the silt-retaining dam; and obtaining the sedimentation status of the dam reservoir area using terrain scanning equipment after the experiment.
8. A simulation test system for the physical process of water and sediment regulation in silt-retention dams, characterized in that, It includes a data collection module, which is used to design experimental schemes for simulating the physical processes of water and sediment regulation in silt-retaining dams based on the design data of silt-retaining dams in the study area, on-site dam body parameter surveys, soil surveys in the dam-reservoir area, and other data. The scheme determination module is used to determine the size ratio of the model sand and the silt-retaining dam model based on the designed test scheme. The experimental module simulates the physical process of water and sediment regulation in silt-retaining dams based on a flume physical model. The analysis module analyzes the mechanism of water and sediment regulation and the sediment retention capacity of silt-retaining dams based on the experimental results.
9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of a simulation test method for the physical process of water and sediment regulation in a silt-retaining dam as described in any one of claims 1 to 7.