Evaluation method and system for tailings dam breach impact area based on dynamic simulation

Abstract

The present invention discloses an evaluation method and system for the tailings dam break impact area based on dynamic simulation, which relates to the field of computer simulation technology, including: collecting remote sensing data of a predetermined range of a target tailings dam through a satellite system to obtain a remote sensing data set; performing geomorphic environmental analysis based on the remote sensing data set to obtain geomorphic environmental analysis information; establishing an environmental digital model of the target tailings dam with the environmental analysis information; collecting and acquiring basic information of the target tailings dam, and establishing dam break sample data with the basic information; performing dam break simulation based on the environmental digital model and the dam break sample data, and recording the simulation results, wherein the simulation results include a fluid impact area and an impact level; generating a dam break impact area evaluation result with the fluid impact area and the impact level. The present invention solves the technical problem of insufficient accuracy and objectivity of evaluation in the prior art, and achieves the technical effect of improving the accuracy and objectivity of evaluation.

Description

Technical Field

[0001] The present invention relates to the technical field of computer simulation, and in particular to a method and system for evaluating a tailings dam breach impact area based on dynamic simulation. Background Art

[0002] Tailings ponds are the main facilities for mineral processing in mining enterprises. They are prone to accidents and are also dangerous sources of hidden safety hazards. The collapse of tailings ponds will pose a serious threat to the safety of the surrounding environment and even affect social stability. Therefore, it is crucial to do a good job in disaster risk assessment and prevention of tailings ponds to protect people's lives and property. In the existing technology, the assessment of the affected area of ​​tailings dam collapse usually relies on field investigation and empirical judgment. This method is difficult to comprehensively assess the scope and degree of impact of the dam collapse, and the assessment results may be affected by human factors. Therefore, the existing technology has technical problems such as insufficient accuracy and objectivity of the assessment. Summary of the invention

[0003] This application effectively solves the technical problems of insufficient accuracy and objectivity of evaluation in the prior art by providing an evaluation method and system for the tailings dam breach impact area based on dynamic simulation, thereby achieving the technical effect of improving the accuracy and objectivity of evaluation.

[0004] The present application provides a method and system for evaluating the impact area of ​​tailings dam breach based on dynamic simulation. The technical solution is as follows:

[0005] In a first aspect, an embodiment of the present application provides a method for evaluating the impact area of ​​a tailings dam breach based on dynamic simulation, the method comprising:

[0006] Collect remote sensing data of a predetermined range of a target tailings pond through a satellite system to obtain a remote sensing data set;

[0007] Performing geomorphic environment analysis according to the remote sensing data set to obtain geomorphic environment analysis information;

[0008] Establishing an environmental digital model of the target tailings pond based on the environmental analysis information;

[0009] Collect and obtain basic information of the target tailings pond, and establish dam break sample data based on the basic information;

[0010] Performing dam break simulation according to the environmental digital model and the dam break sample data, and recording simulation results, wherein the simulation results include fluid impact area and impact level;

[0011] A dam break impact area assessment result is generated based on the fluid impact area and the impact level.

[0012] In a second aspect, an embodiment of the present application provides an evaluation system for a tailings dam breach impact area based on dynamic simulation, the system comprising:

[0013] A remote sensing data set acquisition module, wherein the remote sensing data set acquisition module is used to collect remote sensing data of a predetermined range of a target tailings pond through a satellite system to obtain a remote sensing data set;

[0014] A geomorphic environment information analysis module, the geomorphic environment information analysis module is used to perform geomorphic environment analysis according to the remote sensing data set to obtain geomorphic environment analysis information;

[0015] An environmental digital model building module, the environmental digital model building module is used to build an environmental digital model of the target tailings pond based on the environmental analysis information;

[0016] A dam-break sample data establishment module, the dam-break sample data establishment module is used to collect and obtain basic information of the target tailings pond, and establish dam-break sample data based on the basic information;

[0017] A dam-break simulation module, the dam-break simulation module is used to perform dam-break simulation according to the environmental digital model and the dam-break sample data, and record simulation results, wherein the simulation results include a fluid impact area and an impact level;

[0018] An assessment result generating module is used to generate a dam break impact area assessment result based on the fluid impact area and the impact level.

[0019] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0020] This application collects remote sensing data of a predetermined range of a target tailings pond through a satellite system to obtain a remote sensing data set, and then performs geomorphic environmental analysis based on the remote sensing data set to obtain geomorphic environmental analysis information, and then uses the environmental analysis information to establish an environmental digital model of the target tailings pond, and then collects and obtains basic information of the target tailings pond, uses the basic information to establish dam break sample data, performs dam break simulation based on the environmental digital model and the dam break sample data, and records the simulation results, wherein the simulation results include fluid impact area and impact level, and finally generates a dam break impact area assessment result based on the fluid impact area and the impact level. This effectively solves the technical problem of insufficient accuracy and objectivity of the assessment in the prior art, and achieves the technical effect of improving the accuracy and objectivity of the assessment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic flow chart of a method for evaluating the tailings dam breach impact area based on dynamic simulation provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of the structure of a tailings dam breach impact area assessment system based on dynamic simulation provided in an embodiment of the present application.

[0024] Explanation of the reference numerals: remote sensing data set acquisition module 1, geomorphic environment information analysis module 2, environmental digital model establishment module 3, dam break sample data establishment module 4, dam break simulation module 5, evaluation result generation module 6. DETAILED DESCRIPTION

[0025] The present application provides a method and system for evaluating the tailings dam breach impact area based on dynamic simulation, aiming to solve the technical problem of insufficient accuracy and objectivity of evaluation in the prior art.

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0027] It should be noted that the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or server that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or modules that are not explicitly listed or inherent to these processes, methods, products or devices.

[0028] Embodiment 1

[0029] like Figure 1 As shown, the present invention provides a method for evaluating the tailings dam breach impact area based on dynamic simulation. The method uses remote sensing data and computer simulation technology to accurately obtain the geomorphic environment information of the tailings dam, and automatically simulates and evaluates the dam breach impact area, thereby improving the accuracy and objectivity of the evaluation. The method includes:

[0030] Using a satellite system, remote sensing data collection of high-resolution images, terrain data or other environmental data is performed on a predetermined range of a target tailings pond. The target tailings pond refers to a tailings pond that requires a dynamic simulation study to determine the area affected by a dam break. The predetermined range refers to a pre-set range that is centered on the target tailings pond and is determined by the area that may be affected by a dam break. The predetermined range can be a preset regular shape or an irregular shape determined based on the specific conditions and surrounding environment of the tailings pond and the area that may be affected by a dam break. Remote sensing data of the predetermined range of the target tailings pond is obtained through a professional satellite image company or institution to obtain a remote sensing data set, which includes terrain data, geomorphic data, vegetation coverage, water body distribution and other data.

[0031] Based on the acquired remote sensing data set, a professional geographic information system (GIS) or other related software is used to analyze and process it to extract geomorphic environmental information related to the tailings dam breach, such as terrain elevation, slope, landform type, etc. This information is the geomorphic environmental analysis information.

[0032] According to the geomorphic environment analysis information and other collected environmental data, through data processing, analysis, feature extraction and other operations, using GIS or other 3D modeling software, a digital model of the environment of the target tailings pond is constructed. This model is used to simulate the actual terrain and landforms of the tailings pond, providing a basis for subsequent dam break simulation.

[0033] The basic information of the target tailings pond is obtained by accessing relevant archives or conducting on-site surveys, including the design parameters, storage capacity, dam body materials, height, etc. of the target tailings pond. Based on the basic information and other historical data related to dam breaches, one or more dam breach sample data sets are constructed to simulate the dam breach process and predict the impact of dam breaches.

[0034] Using computer simulation technology, the dam break sample data is input into the environmental digital model to simulate the actual process of dam break. Through simulation, the fluid impact areas such as the diffusion range and deposition location of tailings after dam break, as well as the impact levels of these areas, are obtained. Among them, the fluid impact area refers to the diffusion area formed by the combined action of tailings and water flow after the dam break, which is affected by factors such as the design, topography, and hydrology of the tailings pond. The impact level refers to the division of the impact area into different levels according to the degree of impact of the dam break on the surrounding environment, such as slight impact, moderate impact, severe impact, etc.

[0035] According to the fluid impact area and impact level obtained from the dam-break simulation, the dam-break risk of the target tailings pond is evaluated to obtain the assessment results of the dam-break impact area, which are used to guide the safety management decisions of the tailings pond, such as the construction of early warning systems and the formulation of emergency plans. The technical effect of improving the accuracy and objectivity of the assessment of the tailings pond dam-break impact area is achieved.

[0036] In a preferred implementation manner provided in an embodiment of the present application, performing geomorphic environment analysis according to the remote sensing data set to obtain geomorphic environment analysis information includes:

[0037] The remote sensing data set is preprocessed to remove various noises and interferences to ensure the quality and accuracy of the data. The preprocessing includes data cleaning (such as removing invalid or missing data), format conversion (such as unifying different data formats), coordinate transformation (such as converting geographic coordinates into rectangular coordinates), radiation calibration (converting the digital value of the remote sensing image into the actual spectral radiation intensity), atmospheric correction (eliminating the influence of atmospheric scattering, absorption, etc. on the remote sensing image), geocoding (corresponding the pixel position to the geographic coordinates), etc. The preprocessed remote sensing data set is subjected to band and pixel value extraction. The band refers to the different color channels of the remote sensing image, which are used to represent the information of different bands, such as red, green, blue, etc. The pixel value represents the color or intensity of each pixel. By extracting the band and pixel values, more detailed information can be obtained from the preprocessed remote sensing data set.

[0038] The preprocessed remote sensing data set is classified based on the band extraction results and the pixel value extraction results. The classification refers to image classification of the remote sensing image, and the pixels in the image are classified into different categories according to their characteristics. For example, assuming there is a multi-band remote sensing image, the green and red bands are selected for extraction. By combining the pixel values ​​of these two bands into a new feature vector, the color information of each pixel can be obtained. Based on this color information, the pixels in the image can be classified into different categories, such as water bodies, vegetation, bare land, etc. Through classification, multiple classified data sets are obtained, each of which represents a category in the remote sensing image.

[0039] Feature extraction is performed on multiple classified data sets to extract features and attributes related to the target tailings pond. For example, the range, shape, color and other information of the water body are extracted from the classified data set of the water body. Based on the extracted features and attributes, the geomorphic environment of the target tailings pond is analyzed and interpreted to obtain the geomorphic environment analysis information. For example, the hydrological conditions around the target tailings pond are analyzed based on the range and shape of the water body; the vegetation coverage around the target tailings pond is analyzed based on the distribution and type of vegetation. This preferred implementation effectively removes noise and interference by preprocessing the remote sensing data set and extracting bands and pixel values, thereby achieving the technical effect of improving data accuracy and reliability.

[0040] In another preferred implementation manner provided in the embodiment of the present application, the feature extraction of the multiple classification data sets and the landform environment analysis according to the extraction results to obtain the landform environment analysis information include:

[0041] A first classification data set is extracted according to the multiple classification data sets, wherein the first classification data set is any one of the data sets selected from the multiple classification data sets. Multidimensional feature extraction is performed on the data in the first classification data set, and feature information of multiple dimensions is extracted from the data set to describe the characteristics of the data set, wherein the multidimensional features include shape features, texture features and color features, the shape features describe the shape and outline of the object in the image, the texture features describe the surface texture of the object in the image, and the color features describe the color distribution of the object in the image, and by extracting these features, a first multidimensional feature value that fully describes the feature information of the first classification data set is obtained. Based on the first multidimensional feature value, the extracted feature information is compared and analyzed (traversed comparison) one by one with the feature information in the known geomorphic environment feature library, the most similar feature information is found, and then the geomorphic environment information of the target tailings pond is parsed to obtain the geomorphic environment parsing information. This preferred embodiment can obtain comprehensive and accurate feature information by performing multidimensional feature extraction on the first classification data set, and then obtain accurate geomorphic environment parsing information by traversing and comparing with the geomorphic environment feature library, thereby achieving the technical effect of improving the accuracy of geomorphic environment parsing.

[0042] In another preferred implementation manner provided in the embodiment of the present application, the collecting and acquiring basic information of the target tailings pond and establishing dam break sample data based on the basic information includes:

[0043] The basic information is basic characteristic information about the target tailings pond, including the shape (e.g., circular, rectangular, etc.), size (e.g., length, width, height), location (e.g., longitude and latitude coordinates) and surrounding geomorphic environment (e.g., terrain, vegetation, water bodies, etc.) of the target tailings pond. Based on the basic information, the dam break record data of the same family tailings pond is collected and obtained. The same family tailings pond refers to other tailings ponds similar to the target tailings pond. The basic information of the target tailings pond is used to collect and obtain the dam break record data of other similar tailings ponds. The dam break record data includes the time of the dam break, the severity of the dam break, the fluid flow rate and flow rate after the dam break, and other information. The fluid flow rate and flow rate information in this information is used as the dam break sample data for subsequent dam break simulation and analysis. This preferred implementation method obtains a lot of information about tailings dam breaks by collecting and obtaining dam break record data of the same family of tailings ponds. Since these dam break record data actually occurred, they are highly reliable. Since these dam break record data have certain similarities with the target tailings pond, by using these data, the simulation results can be made closer to the actual situation, thereby achieving the technical effect of improving the accuracy of the prediction.

[0044] In another preferred implementation manner provided in the embodiment of the present application, the environmental digital model of the target tailings pond is established using the environmental analysis information, including:

[0045] Obstacle identification is performed on the environmental analysis information. Obstacle identification refers to identifying objects or terrains that may cause obstacles to the target tailings pond from the environmental analysis information, such as hillsides, canyons, etc., by identifying these obstacles, determining their positions and shapes, and obtaining the location information of the obstacles.

[0046] The environmental analysis information is used to identify the location of building facilities. The building facility identification refers to identifying the location and shape of buildings and other facilities, including factories, warehouses, residences, etc., from the environmental analysis information to obtain the location information of the building facilities.

[0047] The environmental analysis information is used to identify the location of water bodies, which refers to identifying the location and shape of water bodies around the target tailings pond from the environmental analysis information, such as rivers, lakes, ponds, etc., to obtain the location information of the water bodies.

[0048] The location information of the identified obstacles, building facilities and water bodies are incorporated into the process of generating the digital environment model together with the location information of the target tailings pond. With this information, a detailed and comprehensive digital environment model is constructed, including the terrain, landforms, buildings, water bodies and other possible obstacles around the target tailings pond. This preferred implementation method obtains comprehensive and accurate environmental information by performing obstacle identification, building facility location identification and water body location identification, thereby achieving the technical effect of improving the accuracy of the digital environment model.

[0049] In another preferred implementation manner provided by the embodiment of the present application, the dam break simulation is performed according to the environmental digital model and the dam break sample data, and the simulation results are recorded, wherein the simulation results include the fluid impact area and the impact level, including:

[0050] Establish the relationship between the position of the obstacle and the fluid turning effect of the fluid, that is, establish a model to describe the effect of the position of the obstacle on the flow direction of the fluid. For example, if there is a mountain as an obstacle, the fluid will change its flow direction due to the obstruction of the mountain. By establishing this influence relationship, it is used to more accurately predict the flow path of the fluid in the simulation.

[0051] Establish the influence relationship between the water body position and the diffusion of the fluid, that is, establish a model to describe the influence of the water body position on the diffusion of the fluid. For example, if there is a lake as the water body, the fluid will diffuse to the surrounding due to the obstruction of the lake. By establishing this influence relationship, it is used to more accurately predict the diffusion range of the fluid in the simulation.

[0052] The fluid steering influence relationship and the diffusion influence relationship are embedded in the environmental digital model. By embedding the influence relationship, the environmental digital model becomes more complex and accurate, thereby being able to better simulate the flow and diffusion of the fluid.

[0053] The dam break sample data is input into the environmental digital model to perform dam break simulation. Through the simulation, the result of the fluid impact area is obtained, that is, the range that the fluid may affect after the dam break, and the fluid impact area includes multiple sub-areas.

[0054] Extract the fluid flow information of the multiple sub-areas, perform a building damage ratio analysis on the multiple sub-areas according to the location of the building facilities, obtain the possible building damage degree of each sub-area through analysis, generate the impact level of the multiple sub-areas according to the analysis results and the fluid flow, and the impact level is used to evaluate the importance of each sub-area and the possible impact degree. This preferred embodiment establishes a more complex model by establishing the fluid steering influence relationship between the obstacle location and the fluid and the diffusion influence relationship between the water body location and the fluid, and embeds the model, thereby achieving the technical effect of improving the accuracy of the assessment. In addition, through dam break simulation and impact assessment, the possible impact range and damage degree after the dam break are predicted, and the corresponding impact level is generated. When the tailings pond breaks, the level of warning and the level of emergency response can be determined according to the level of impact, thereby achieving the technical effect of improving the safety warning system.

[0055] Embodiment 2

[0056] Based on the same inventive concept as the method for evaluating the tailings dam breach impact area based on dynamic simulation in the aforementioned embodiment, Figure 2 As shown, the present application provides an assessment system for the tailings dam breach impact area based on dynamic simulation, and the system and method embodiments in the present application embodiments are based on the same inventive concept. The system includes:

[0057] A remote sensing data set acquisition module 1, wherein the remote sensing data set acquisition module 1 is used to collect remote sensing data of a predetermined range of a target tailings pond through a satellite system to obtain a remote sensing data set;

[0058] A geomorphic environment information analysis module 2, wherein the geomorphic environment information analysis module 2 is used to perform geomorphic environment analysis according to the remote sensing data set to obtain geomorphic environment analysis information;

[0059] An environmental digital model building module 3, the environmental digital model building module 3 is used to build an environmental digital model of the target tailings pond based on the environmental analysis information;

[0060] A dam-break sample data establishment module 4, the dam-break sample data establishment module 4 is used to collect and obtain basic information of the target tailings pond, and establish dam-break sample data based on the basic information;

[0061] A dam-break simulation module 5, the dam-break simulation module 5 is used to perform dam-break simulation according to the environmental digital model and the dam-break sample data, and record simulation results, wherein the simulation results include a fluid impact area and an impact level;

[0062] An assessment result generating module 6 is used to generate a dam break impact area assessment result based on the fluid impact area and the impact level.

[0063] Furthermore, the geomorphic environment information analysis module 2 is used to execute the following method:

[0064] Preprocessing the remote sensing data set, extracting bands and pixel values ​​from the preprocessed remote sensing data set to obtain band extraction results and pixel value extraction results;

[0065] Classifying the preprocessed remote sensing data set based on the band extraction result and the pixel value extraction result to obtain multiple classified data sets;

[0066] Feature extraction is performed on the multiple classified data sets, and landform environment analysis is performed according to the extraction results to obtain the landform environment analysis information.

[0067] Furthermore, the geomorphic environment information analysis module 2 is used to execute the following method:

[0068] extracting a first classified data set according to the plurality of classified data sets;

[0069] Performing multidimensional feature extraction on the data in the first classification data set to obtain a first multidimensional feature value, wherein the multidimensional feature includes shape feature, texture feature and color feature;

[0070] The geomorphic environment analysis information is obtained by traversing and comparing the first multi-dimensional feature value in a geomorphic environment feature library.

[0071] Furthermore, the dam-break sample data establishing module 4 is used to execute the following method:

[0072] The basic information includes the shape, size, location and geomorphic environment of the target tailings pond;

[0073] Based on the basic information collection, the dam break record data of the same family of tailings ponds are obtained as the dam break sample data, and the dam break sample data includes fluid flow velocity and flow rate.

[0074] Furthermore, the environment digital model building module 3 is used to execute the following method:

[0075] Perform obstacle identification on the environmental analysis information to obtain the location of the obstacle;

[0076] Performing building facility location identification on the environmental analysis information to obtain the building facility location;

[0077] Performing water body location identification on the environmental analysis information to obtain the water body location;

[0078] The environmental digital model is generated based on the locations of the obstacles, the construction facilities, the water body, and the target tailings pond.

[0079] Furthermore, the dam break simulation module 5 is used to perform the following method:

[0080] Establishing the relationship between the position of the obstacle and the fluid diversion influence of the fluid, and establishing the relationship between the position of the water body and the diffusion influence of the fluid;

[0081] embedding the fluid steering influence relationship and the diffusion influence relationship into the environmental digital model;

[0082] Inputting the dam break sample data into the environmental digital model to perform dam break simulation, and outputting a fluid impact area, wherein the fluid impact area includes a plurality of sub-areas;

[0083] The fluid flow rates of the multiple sub-areas are extracted, and building damage ratio analysis is performed on the multiple sub-areas according to the building facility locations, and impact levels of the multiple sub-areas are generated according to the analysis results and the fluid flow rates.

[0084] It should be noted that the above-mentioned sequence of the embodiments of the present application is only for description and does not represent the advantages and disadvantages of the embodiments. And the above-mentioned specific embodiments of this specification are described. Other embodiments are within the scope of this application. In some cases, the actions or steps recorded in this application can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the process depicted in the accompanying drawings does not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0085] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

[0086] This specification and drawings are merely exemplary illustrations of the present application and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, a person skilled in the art may make various modifications and variations to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the present application and its equivalents, the present application intends to include these modifications and variations.

Claims

1. A method for evaluating the impact area of ​​tailings dam breach based on dynamic simulation, characterized in that: The method comprises: Collect remote sensing data of a predetermined range of a target tailings pond through a satellite system to obtain a remote sensing data set; Performing geomorphic environment analysis according to the remote sensing data set to obtain geomorphic environment analysis information; Establishing an environmental digital model of the target tailings pond based on the environmental analysis information; Collect and obtain basic information of the target tailings pond, and establish dam break sample data based on the basic information; Performing dam break simulation according to the environmental digital model and the dam break sample data, and recording simulation results, wherein the simulation results include fluid impact area and impact level; generating a dam break impact area assessment result based on the fluid impact area and the impact level; The performing of geomorphic environment analysis according to the remote sensing data set to obtain geomorphic environment analysis information includes: Preprocessing the remote sensing data set, extracting bands and pixel values ​​from the preprocessed remote sensing data set to obtain band extraction results and pixel value extraction results; Classifying the preprocessed remote sensing data set based on the band extraction result and the pixel value extraction result to obtain multiple classified data sets; Extracting features from the multiple classified data sets, and performing geomorphic environment analysis according to the extraction results to obtain the geomorphic environment analysis information; The collecting and obtaining basic information of the target tailings pond and establishing dam break sample data based on the basic information include: The basic information includes the shape, size, location and geomorphic environment of the target tailings pond; Based on the basic information collection, the dam-break record data of the same family of tailings ponds are obtained as the dam-break sample data, wherein the dam-break sample data includes fluid velocity and flow rate; The step of establishing the environmental digital model of the target tailings pond using the environmental analysis information includes: Perform obstacle identification on the environmental analysis information to obtain the location of the obstacle; Performing building facility location identification on the environmental analysis information to obtain the building facility location; Performing water body location identification on the environmental analysis information to obtain the water body location; Generate the environmental digital model based on the location of the obstacle, the location of the building facility, the location of the water body, and the location of the target tailings pond; The dam break simulation is performed according to the environmental digital model and the dam break sample data, and the simulation results are recorded, wherein the simulation results include the fluid impact area and the impact level, including: Establishing the relationship between the position of the obstacle and the fluid diversion influence of the fluid, and establishing the relationship between the position of the water body and the diffusion influence of the fluid; embedding the fluid steering influence relationship and the diffusion influence relationship into the environmental digital model; Inputting the dam break sample data into the environmental digital model to perform dam break simulation, and outputting a fluid impact area, wherein the fluid impact area includes a plurality of sub-areas; The fluid flow rates of the multiple sub-areas are extracted, and building damage ratio analysis is performed on the multiple sub-areas according to the building facility locations, and impact levels of the multiple sub-areas are generated according to the analysis results and the fluid flow rates.

2. The method according to claim 1, characterized in that The extracting features of the plurality of classified data sets and performing landform environment analysis according to the extraction results to obtain the landform environment analysis information includes: extracting a first classified data set according to the plurality of classified data sets; Performing multidimensional feature extraction on the data in the first classification data set to obtain a first multidimensional feature value, wherein the multidimensional feature includes shape feature, texture feature and color feature; The geomorphic environment analysis information is obtained by traversing and comparing the first multi-dimensional feature value in a geomorphic environment feature library.

3. An assessment system for the tailings dam breach impact area based on dynamic simulation, characterized in that: The system comprises: A remote sensing data set acquisition module, wherein the remote sensing data set acquisition module is used to collect remote sensing data of a predetermined range of a target tailings pond through a satellite system to obtain a remote sensing data set; A geomorphic environment information analysis module, the geomorphic environment information analysis module is used to perform geomorphic environment analysis according to the remote sensing data set to obtain geomorphic environment analysis information; An environmental digital model building module, the environmental digital model building module is used to build an environmental digital model of the target tailings pond based on the environmental analysis information; A dam-break sample data establishment module, the dam-break sample data establishment module is used to collect and obtain basic information of the target tailings pond, and establish dam-break sample data based on the basic information; A dam-break simulation module, the dam-break simulation module is used to perform dam-break simulation according to the environmental digital model and the dam-break sample data, and record simulation results, wherein the simulation results include a fluid impact area and an impact level; An assessment result generating module, the assessment result generating module is used to generate a dam break impact area assessment result based on the fluid impact area and the impact level; The geomorphic environment information analysis module is used to execute the following method: Preprocessing the remote sensing data set, extracting bands and pixel values ​​from the preprocessed remote sensing data set to obtain band extraction results and pixel value extraction results; Classifying the preprocessed remote sensing data set based on the band extraction result and the pixel value extraction result to obtain multiple classified data sets; Extracting features from the multiple classified data sets, and performing geomorphic environment analysis according to the extraction results to obtain the geomorphic environment analysis information; The dam break sample data establishment module is used to execute the following method: The basic information includes the shape, size, location and geomorphic environment of the target tailings pond; Based on the basic information collection, the dam-break record data of the same family of tailings ponds are obtained as the dam-break sample data, wherein the dam-break sample data includes fluid velocity and flow rate; The environment digital model building module is used to execute the following method: Perform obstacle identification on the environmental analysis information to obtain the location of the obstacle; Performing building facility location identification on the environmental analysis information to obtain the building facility location; Performing water body location identification on the environmental analysis information to obtain the water body location; Generate the environmental digital model based on the location of the obstacle, the location of the building facility, the location of the water body, and the location of the target tailings pond; The dam break simulation module is used to perform the following method: Establishing the relationship between the position of the obstacle and the fluid diversion influence of the fluid, and establishing the relationship between the position of the water body and the diffusion influence of the fluid; embedding the fluid steering influence relationship and the diffusion influence relationship into the environmental digital model; Inputting the dam break sample data into the environmental digital model to perform dam break simulation, and outputting a fluid impact area, wherein the fluid impact area includes a plurality of sub-areas; The fluid flow rates of the multiple sub-areas are extracted, and building damage ratio analysis is performed on the multiple sub-areas according to the building facility locations, and impact levels of the multiple sub-areas are generated according to the analysis results and the fluid flow rates.

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