Site selection evaluation method and system for low-radioactivity solid waste disposal site

Abstract

The invention relates to the technical field of data analysis, and discloses a site selection evaluation method and system for a low-radioactivity solid waste disposal site, and the method comprises the steps: collecting multi-dimensional site selection reference data for a target site selection task; the multi-dimensional site selection reference data comprises multi-dimensional spatial data and multi-dimensional basic investigation data; according to the multi-dimensional spatial data, GIS spatial analysis operation is executed, and a GIS spatial evaluation result including a candidate site range and a visual classification map is obtained; based on the risk assessment condition, according to the multi-dimensional basic survey data, generating a risk matrix recording risk levels corresponding to the plurality of candidate sites; and determining the optimal site of the target project according to the GIS space evaluation result and the risk matrix. Therefore, by implementing the method, the comprehensiveness and reliability of project site selection evaluation can be improved, and a scientific and reliable evaluation basis is provided for project site selection, so that the environmental safety and sustainable development of the region where the project is located are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of data analysis technology, and in particular to a method and system for site selection assessment of low-radioactive solid waste disposal sites. Background Technology

[0002] Associated radioactive solid waste refers to uranium (thorium) series single nuclides with a content exceeding 1 Bq·g generated from non-uranium (thorium) mineral resource development and utilization activities. Solid waste of type 1 includes tailings, slag, and other residues generated during mining, beneficiation, and smelting processes. In my country, associated radioactive waste is widespread, diverse, abundant, and complex in nature. National regulation of this type of waste is still in its early stages, with large quantities remaining in temporary storage without a final disposal destination, hindering the healthy and sustainable development of associated radioactive mineral enterprises. Therefore, selecting suitable sites and evaluating their suitability are among the key scientific and technological challenges in the safe disposal of associated radioactive solid waste.

[0003] Currently, in the site selection practices of major projects with long-term nature and potentially high risks, such as the disposal of associated radioactive solid waste, especially in projects involving radiation safety, improper site selection may trigger irreversible ecological and environmental damage events, seriously impacting the surrounding environment and residents' health. However, in practice, it has been found that traditional site selection methods often rely on single factors or limited experience-based judgments, and tend to focus on individual dimensions (such as geological surveys or traffic assessments), lacking a systematic and quantitative comprehensive evaluation system. This results in limitations in site selection assessment results, making it difficult to fully avoid potential risks and provide sufficient guarantees for regional sustainable development.

[0004] Therefore, it is particularly important to propose a technical solution that can improve the comprehensiveness and reliability of project site selection assessment, provide a scientific and reliable assessment basis for project site selection, and thus help ensure the environmental safety and sustainable development of the project area. Summary of the Invention

[0005] This invention provides a method and system for site selection assessment of low-radioactive solid waste disposal sites, which can improve the comprehensiveness and reliability of project site selection assessment, provide a scientific and reliable assessment basis for project site selection, and thus help ensure the environmental safety and sustainable development of the project area.

[0006] To address the aforementioned technical problems, the first aspect of this invention discloses a method for site selection assessment of low-radioactive solid waste disposal sites, the method comprising: Collect multi-dimensional site selection reference data for the target site selection task; wherein, the target site selection task is used to select a site for the target project; the multi-dimensional site selection reference data includes multi-dimensional spatial data and multi-dimensional basic survey data; the multi-dimensional spatial data includes data from multiple layers; the multi-dimensional basic survey data includes ecological data, geological data, hydrological data, population data, transportation data, and environmental quality data; Based on the multi-dimensional spatial data, GIS spatial analysis operations are performed to obtain GIS spatial evaluation results; wherein, the GIS spatial evaluation results include candidate site ranges and visual classification maps; Based on the determined risk assessment conditions, a risk matrix is ​​generated according to the multi-dimensional basic survey data; wherein, the risk assessment matrix records the risk levels corresponding to multiple candidate sites within the candidate site range; Based on the GIS spatial assessment results and the risk matrix, the optimal site for the target project is determined.

[0007] As an optional implementation, in the first aspect of the present invention, the step of performing GIS spatial analysis operations based on the multi-dimensional spatial data to obtain GIS spatial evaluation results includes: Import the multi-dimensional spatial data into the GIS system; Based on the GIS system, the multi-dimensional spatial data is processed by layer overlay to obtain a layer overlay map; Obtain information on pre-determined prohibited site selection areas and pre-determined buffer distances for prohibited site selection areas; wherein, the information on prohibited site selection areas includes multiple prohibited site selection areas; each of the prohibited site selection areas is one of the following: densely populated areas, water source protection areas, ecologically sensitive areas, basic farmland protection areas, active fault areas, high-risk areas for geological disasters, karst areas, hazardous materials protection areas, and main traffic artery areas; Determine the prohibited selection area range from the overlay map that matches the prohibited location area information; Based on the prohibited selection area buffer distance and the prohibited selection area range, a buffer range matching the prohibited selection area range is determined from the overlay map layer; The prohibited selection area and the buffer area are excluded from the overlay map to obtain the candidate site range; Based on a pre-defined visualization method, a visualization classification map corresponding to the overlay map of the layers is generated; wherein, the visualization method includes a first visualization method corresponding to the prohibited selection area, a second visualization method corresponding to the buffer area, and a third visualization method corresponding to the candidate site area.

[0008] As an optional implementation, in the first aspect of the present invention, generating a risk matrix based on the determined risk assessment conditions and the multi-dimensional basic survey data includes: Based on the determined risk assessment conditions, and according to the multi-dimensional basic survey data, the risk assessment results corresponding to the candidate site range are determined; wherein, the risk assessment results include risk assessment sub-results corresponding to multiple candidate sites; the risk assessment sub-results include the estimated probability of occurrence of various risk factors and the estimated risk consequences for each of the risk factors; Based on the risk assessment sub-results corresponding to each candidate site, assess the risk level corresponding to that candidate site; A risk matrix is ​​generated based on the risk levels corresponding to all the candidate sites.

[0009] As an optional implementation, in the first aspect of the present invention, the risk assessment conditions include a variety of risk assessment sub-conditions, each of which is one of the following: ecological environment and sensitive area assessment conditions, geological assessment conditions, hydrological and disaster assessment conditions, population distribution and protection assessment conditions, transportation and infrastructure assessment conditions, and environmental quality status and prediction assessment conditions. The step of determining the risk assessment result corresponding to the candidate site range based on the determined risk assessment conditions and the multi-dimensional basic survey data includes: Based on each risk assessment sub-condition in the determined risk assessment conditions, and according to the multi-dimensional basic survey data, the risk assessment sub-results of each candidate site in the candidate site range with respect to the risk factors corresponding to the risk assessment sub-condition are analyzed.

[0010] As an optional implementation, in the first aspect of the present invention, the step of analyzing the risk assessment sub-results of each candidate site within the candidate site range regarding the risk factors corresponding to the risk assessment sub-condition based on each of the determined risk assessment conditions and according to the multi-dimensional basic survey data, includes: When the risk assessment sub-condition is the geological assessment condition, for each candidate site, the geological condition analysis result corresponding to the candidate site is determined based on the geological data; the geological condition analysis result includes the rock and soil property analysis result, foundation bearing capacity, seismic fortification intensity and geological structure analysis result; Determine whether the bearing capacity of the foundation meets the engineering bearing capacity conditions corresponding to the target project, and obtain the first geological judgment result; Determine whether the earthquake fortification intensity is higher than or equal to the intensity threshold corresponding to the obtained seismic design code to obtain the second geological judgment result; Based on the results of the geotechnical property analysis and the results of the geological structure analysis, the geological stability and barrier performance of the candidate site are determined. Based on the first geological assessment result, the second geological assessment result, the geological stability, and the barrier performance, a risk assessment sub-result is determined for the geological structural risk factors corresponding to the geological assessment conditions of the candidate site.

[0011] As an optional implementation, in the first aspect of the present invention, the step of analyzing the risk assessment sub-results of each candidate site within the candidate site range regarding the risk factors corresponding to the risk assessment sub-condition based on each of the determined risk assessment conditions and according to the multi-dimensional basic survey data, includes: When the risk assessment sub-condition is the hydrological and disaster assessment condition, for each candidate site, the groundwater parameters corresponding to the candidate site are analyzed based on the hydrological data; the groundwater parameters include groundwater flow direction, groundwater flow velocity, and permeability coefficient. Based on the groundwater parameters, the analysis results of the natural foundation layer corresponding to the candidate site are determined; the analysis results of the natural foundation layer include the natural foundation layer impermeability coefficient, the natural foundation layer thickness, and the distance from the surface of the natural foundation layer to the groundwater level; Based on the groundwater parameters and the analysis results of the natural foundation layer, the risk assessment sub-results of the groundwater risk factors corresponding to the hydrological and disaster assessment conditions for the candidate site are determined; Based on the geological data, the hydrological data, and the obtained historical disaster data of the surrounding area of ​​the candidate site, a risk assessment sub-result is determined for the candidate site with respect to the disaster risk factors corresponding to the hydrological and disaster assessment conditions; wherein, the disaster risk factors include risk factors of multiple disaster types.

[0012] As an optional implementation, in the first aspect of the present invention, determining the optimal site corresponding to the target project based on the GIS spatial assessment results and the risk matrix includes: Based on the GIS spatial assessment results, a spatial score is determined for each candidate site; the spatial score is used to indicate the spatial rationality of the candidate site; the spatial score includes the distance score of the candidate site relative to the surrounding prohibited selection areas and the spatial suitability score of the candidate site; Based on the risk matrix, a risk score is determined for each candidate site; For each candidate site, a comprehensive score is calculated based on the spatial score and risk score corresponding to the candidate site. From all the candidate sites, the candidate sites with a comprehensive score higher than a preset score threshold are selected as the optimal sites.

[0013] A second aspect of this invention discloses a site selection assessment system for low-radioactive solid waste disposal sites, the system comprising: The data acquisition module is used to collect multi-dimensional site selection reference data for a target site selection task; wherein, the target site selection task is used to select a site for a target project; the multi-dimensional site selection reference data includes multi-dimensional spatial data and multi-dimensional basic survey data; the multi-dimensional spatial data includes data from multiple layers; the multi-dimensional basic survey data includes ecological data, geological data, hydrological data, population data, transportation data, and environmental quality data; The spatial assessment module is used to perform GIS spatial analysis operations based on the multi-dimensional spatial data to obtain GIS spatial assessment results; wherein, the GIS spatial assessment results include candidate site ranges and a visual classification map; The risk assessment module is used to generate a risk matrix based on the determined risk assessment conditions and the multi-dimensional basic survey data; wherein, the risk assessment matrix records the risk levels corresponding to multiple candidate sites in the candidate site range; The determination module is used to determine the optimal site corresponding to the target project based on the GIS spatial assessment results and the risk matrix.

[0014] As an optional implementation, in a second aspect of the present invention, the specific method by which the spatial assessment module performs GIS spatial analysis operations based on the multi-dimensional spatial data to obtain GIS spatial assessment results includes: Import the multi-dimensional spatial data into the GIS system; Based on the GIS system, the multi-dimensional spatial data is processed by layer overlay to obtain a layer overlay map; Obtain information on pre-determined prohibited site selection areas and pre-determined buffer distances for prohibited site selection areas; wherein, the information on prohibited site selection areas includes multiple prohibited site selection areas; each of the prohibited site selection areas is one of the following: densely populated areas, water source protection areas, ecologically sensitive areas, basic farmland protection areas, active fault areas, high-risk areas for geological disasters, karst areas, hazardous materials protection areas, and main traffic artery areas; Determine the prohibited selection area range from the overlay map that matches the prohibited location area information; Based on the prohibited selection area buffer distance and the prohibited selection area range, a buffer range matching the prohibited selection area range is determined from the overlay map layer; The prohibited selection area and the buffer area are excluded from the overlay map to obtain the candidate site range; Based on a pre-defined visualization method, a visualization classification map corresponding to the overlay map of the layers is generated; wherein, the visualization method includes a first visualization method corresponding to the prohibited selection area, a second visualization method corresponding to the buffer area, and a third visualization method corresponding to the candidate site area.

[0015] As an optional implementation, in the second aspect of the present invention, the specific method by which the risk assessment module generates a risk matrix based on the determined risk assessment conditions and the multi-dimensional basic survey data includes: Based on the determined risk assessment conditions, and according to the multi-dimensional basic survey data, the risk assessment results corresponding to the candidate site range are determined; wherein, the risk assessment results include risk assessment sub-results corresponding to multiple candidate sites; the risk assessment sub-results include the estimated probability of occurrence of various risk factors and the estimated risk consequences for each of the risk factors; Based on the risk assessment sub-results corresponding to each candidate site, assess the risk level corresponding to that candidate site; A risk matrix is ​​generated based on the risk levels corresponding to all the candidate sites.

[0016] As an optional implementation, in the second aspect of the present invention, the risk assessment conditions include a variety of risk assessment sub-conditions, each of which is one of the following: ecological environment and sensitive area assessment conditions, geological assessment conditions, hydrological and disaster assessment conditions, population distribution and protection assessment conditions, transportation and infrastructure assessment conditions, and environmental quality status and prediction assessment conditions. The risk assessment module, based on the determined risk assessment conditions and the multi-dimensional basic survey data, determines the specific method for determining the risk assessment result corresponding to the candidate site range, including: Based on each risk assessment sub-condition in the determined risk assessment conditions, and according to the multi-dimensional basic survey data, the risk assessment sub-results of each candidate site in the candidate site range with respect to the risk factors corresponding to the risk assessment sub-condition are analyzed.

[0017] As an optional implementation, in a second aspect of the invention, the risk assessment module, based on each risk assessment sub-condition among the determined risk assessment conditions, analyzes the risk assessment sub-results of each candidate site within the candidate site range regarding the risk factors corresponding to that risk assessment sub-condition, according to the multi-dimensional basic survey data, in a specific manner, including: When the risk assessment sub-condition is the geological assessment condition, for each candidate site, the geological condition analysis result corresponding to the candidate site is determined based on the geological data; the geological condition analysis result includes the rock and soil property analysis result, foundation bearing capacity, seismic fortification intensity and geological structure analysis result; Determine whether the bearing capacity of the foundation meets the engineering bearing capacity conditions corresponding to the target project, and obtain the first geological judgment result; Determine whether the earthquake fortification intensity is higher than or equal to the intensity threshold corresponding to the obtained seismic design code to obtain the second geological judgment result; Based on the results of the geotechnical property analysis and the results of the geological structure analysis, the geological stability and barrier performance of the candidate site are determined. Based on the first geological assessment result, the second geological assessment result, the geological stability, and the barrier performance, a risk assessment sub-result is determined for the geological structural risk factors corresponding to the geological assessment conditions of the candidate site.

[0018] As an optional implementation, in a second aspect of the invention, the risk assessment module, based on each risk assessment sub-condition among the determined risk assessment conditions, analyzes the risk assessment sub-results of each candidate site within the candidate site range regarding the risk factors corresponding to that risk assessment sub-condition, according to the multi-dimensional basic survey data, in a specific manner, including: When the risk assessment sub-condition is the hydrological and disaster assessment condition, for each candidate site, the groundwater parameters corresponding to the candidate site are analyzed based on the hydrological data; the groundwater parameters include groundwater flow direction, groundwater flow velocity, and permeability coefficient. Based on the groundwater parameters, the analysis results of the natural foundation layer corresponding to the candidate site are determined; the analysis results of the natural foundation layer include the natural foundation layer impermeability coefficient, the natural foundation layer thickness, and the distance from the surface of the natural foundation layer to the groundwater level; Based on the groundwater parameters and the analysis results of the natural foundation layer, the risk assessment sub-results of the groundwater risk factors corresponding to the hydrological and disaster assessment conditions for the candidate site are determined; Based on the geological data, the hydrological data, and the obtained historical disaster data of the surrounding area of ​​the candidate site, a risk assessment sub-result is determined for the candidate site with respect to the disaster risk factors corresponding to the hydrological and disaster assessment conditions; wherein, the disaster risk factors include risk factors of multiple disaster types.

[0019] As an optional implementation, in a second aspect of the invention, the determining module determines the optimal site corresponding to the target project based on the GIS spatial assessment results and the risk matrix in the following specific manner: Based on the GIS spatial assessment results, a spatial score is determined for each candidate site; the spatial score is used to indicate the spatial rationality of the candidate site; the spatial score includes the distance score of the candidate site relative to the surrounding prohibited selection areas and the spatial suitability score of the candidate site; Based on the risk matrix, a risk score is determined for each candidate site; For each candidate site, a comprehensive score is calculated based on the spatial score and risk score corresponding to the candidate site. From all the candidate sites, the candidate sites with a comprehensive score higher than a preset score threshold are selected as the optimal sites.

[0020] A third aspect of this invention discloses another site selection assessment system for low-level radioactive solid waste disposal sites, the system comprising: Memory containing executable program code; A processor coupled to the memory; The processor calls the executable program code stored in the memory to execute some or all of the steps of the site selection assessment method for low-radioactive solid waste disposal sites disclosed in the first aspect of the present invention.

[0021] The fourth aspect of the present invention discloses a computer storage medium storing computer instructions, which, when invoked, are used to execute some or all of the steps of the site selection assessment method for low-radioactive solid waste disposal sites disclosed in the first aspect of the present invention.

[0022] Compared with the prior art, the present invention has the following beneficial effects: In this invention, multi-dimensional site selection reference data is collected for a target site selection task. The target site selection task is used to select a site for a target project. The multi-dimensional site selection reference data includes multi-dimensional spatial data and multi-dimensional basic survey data. The multi-dimensional spatial data includes data from various layers. The multi-dimensional basic survey data includes ecological data, geological data, hydrological data, population data, transportation data, and environmental quality data. Based on the multi-dimensional spatial data, GIS spatial analysis is performed to obtain GIS spatial assessment results. These results include candidate site ranges and a visualized classification map. Based on the determined risk assessment conditions, a risk matrix is ​​generated using the multi-dimensional basic survey data. The risk assessment matrix records the risk levels corresponding to multiple candidate sites within the candidate site range. Based on the GIS spatial assessment results and the risk matrix, the optimal site for the target project is determined. As can be seen, implementing this invention can collect multi-dimensional site selection reference data for the target site selection task, and then perform GIS spatial analysis based on the multi-dimensional spatial data to filter out candidate site ranges and generate a visual classification map. Based on risk assessment conditions and multi-dimensional basic survey data, a risk matrix is ​​generated that records the risk levels of multiple candidate sites within the candidate site range. Then, based on the GIS spatial assessment results and the risk matrix, the optimal site corresponding to the target project is determined. This invention can use the analytic hierarchy process to achieve intelligent assessment of project site selection for the disposal of associated low-level radioactive solid waste, improving the comprehensiveness and reliability of project site selection assessment. This is beneficial for providing a scientific and reliable assessment basis for project site selection, thereby improving the reliability, safety, and stability of the determined optimal site, and ultimately helping to ensure the environmental safety and sustainable development of the project area. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a flowchart illustrating a site selection assessment method for low-radioactive solid waste disposal sites disclosed in an embodiment of the present invention. Figure 2 This is a flowchart illustrating another site selection assessment method for low-radioactive solid waste disposal sites disclosed in an embodiment of the present invention. Figure 3 This is a schematic diagram of the structure of a site selection assessment system for low-radioactive solid waste disposal sites disclosed in an embodiment of the present invention; Figure 4This is a schematic diagram of another site selection assessment system for low-radioactive solid waste disposal sites disclosed in an embodiment of the present invention. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or end that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or ends.

[0027] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0028] This invention discloses a method and system for site selection assessment of low-level radioactive solid waste disposal sites. It can collect multi-dimensional site selection reference data for a target site selection task, and then perform GIS spatial analysis based on the multi-dimensional spatial data to filter candidate site ranges and generate a visual classification map. Based on risk assessment conditions and multi-dimensional basic survey data, it generates a risk matrix recording the risk levels of multiple candidate sites within the candidate site range. Finally, based on the GIS spatial assessment results and the risk matrix, it determines the optimal site for the target project. This method utilizes the analytic hierarchy process (AHP) to achieve intelligent assessment of project site selection for the disposal of associated low-level radioactive solid waste, improving the comprehensiveness and reliability of project site selection assessment. This provides a scientific and reliable assessment basis for project site selection, thereby improving the reliability, safety, and stability of the determined optimal site, and ultimately ensuring the environmental safety and sustainable development of the project area. Detailed descriptions follow.

[0029] Example 1 Please see Figure 1 , Figure 1 This is a flowchart illustrating a site selection assessment method for low-radioactive solid waste disposal sites disclosed in an embodiment of the present invention. Figure 1 The described site selection assessment method for low-level radioactive solid waste disposal sites can be applied to a site selection assessment system for low-level radioactive solid waste disposal sites. This system may include one of the following: intelligent devices, intelligent terminals, intelligent systems, and servers. The server may include a local server or a cloud server; this embodiment of the invention does not limit the specific components. Figure 1 As shown, the site selection assessment method for this low-level radioactive solid waste disposal site may include the following operations: 101. Collect multi-dimensional location reference data for the target location task.

[0030] In this embodiment of the invention, the target site selection task is used to select a site for a target project; wherein, the target project may specifically be a solid waste disposal site for associated low-level radioactive waste.

[0031] In this embodiment of the invention, the multi-dimensional site selection reference data may include multi-dimensional spatial data and multi-dimensional basic survey data; wherein, the multi-dimensional spatial data may include multiple layers of data; optionally, the layer data may include, but is not limited to, one or more of geological maps, topographic maps, population distribution maps, sensitive target maps, hydro-meteorological maps, and ecological protection red line maps, and this embodiment of the invention does not limit them; further optionally, the geological map may include geological risk zoning maps and / or geological stability zone maps, and the hydro-meteorological map may include groundwater protection zone maps and / or water area distribution maps; wherein, the multi-dimensional basic survey data may include ecological data, geological data, hydrological data, population data, transportation data, and environmental quality data; optionally, the above-mentioned multi-dimensional basic survey data may be collected through online data collection methods, document review methods, on-site survey methods, and engineering survey methods, and this embodiment of the invention does not limit them.

[0032] 102. Based on multi-dimensional spatial data, perform GIS spatial analysis operations to obtain GIS spatial assessment results.

[0033] In this embodiment of the invention, the GIS spatial assessment results include candidate site ranges and a visual classification map; wherein, the candidate site range may include multiple candidate sites.

[0034] 103. Based on the determined risk assessment conditions, a risk matrix is ​​generated according to multi-dimensional basic survey data.

[0035] In this embodiment of the invention, the risk assessment matrix records the risk levels corresponding to multiple candidate sites within the candidate site range.

[0036] Optionally, after step 103, risk matrix data can be overlaid on the visual classification map output in step 102 to identify the risk level corresponding to each candidate site on the visual classification map. This embodiment of the invention does not limit this.

[0037] 104. Based on the GIS spatial assessment results and risk matrix, determine the optimal site for the target project.

[0038] As can be seen, the method described in the embodiments of the present invention can collect multi-dimensional site selection reference data for the target site selection task, and then perform GIS spatial analysis operations based on the multi-dimensional spatial data to filter out candidate site ranges and generate a visual classification map. Based on risk assessment conditions and multi-dimensional basic survey data, a risk matrix is ​​generated that records the risk levels of multiple candidate sites within the candidate site range. Then, based on the GIS spatial assessment results and the risk matrix, the optimal site corresponding to the target project is determined. The analytic hierarchy process (AHP) can be used to achieve intelligent assessment of project site selection for the disposal of associated low-level radioactive solid waste, improving the comprehensiveness and reliability of project site selection assessment. This is beneficial for providing a scientific and reliable assessment basis for project site selection, thereby improving the reliability, safety, and stability of the determined optimal site, and ultimately helping to ensure the environmental safety and sustainable development of the project area.

[0039] In an optional embodiment, performing GIS spatial analysis operations based on multi-dimensional spatial data to obtain GIS spatial evaluation results may include the following operations: Import multi-dimensional spatial data into the GIS system; Based on the GIS system, multi-dimensional spatial data is overlaid to obtain an overlaid map. Obtain information on pre-determined prohibited site selection areas and pre-determined buffer distances for prohibited site selection areas; wherein, the information on prohibited site selection areas includes a variety of prohibited site selection areas; each prohibited site selection area is one of the following: densely populated areas, water source protection areas, ecologically sensitive areas, basic farmland protection areas, active fault areas, high-risk areas for geological disasters, karst areas, hazardous materials protection areas, and main traffic artery areas; Determine the prohibited selection area range from the overlay map layers that matches the prohibited selection area information; Based on the prohibited selection buffer distance and the prohibited selection range, determine the buffer range that matches the prohibited selection range from the layer overlay map; By excluding prohibited areas and buffer zones from the overlay map, the candidate site range is obtained; Based on the pre-defined visualization methods, a visualization classification map corresponding to the layer overlay map is generated; wherein, the visualization methods include the first visualization method corresponding to the prohibited selection area, the second visualization method corresponding to the buffer area, and the third visualization method corresponding to the candidate site area.

[0040] Optionally, densely populated areas may include residential areas, schools, hospitals, and other areas with frequent human activity; this embodiment of the invention does not limit such areas. However, site selection in these areas may increase the potential risk of radioactive materials to human health.

[0041] Optionally, the water source protection area may include important surface water sources and groundwater sources, and this embodiment of the invention does not limit this; site selection in these areas may lead to radioactive material contamination of water sources, affecting drinking water safety.

[0042] Optionally, ecologically sensitive areas may include ecologically fragile areas such as nature reserves, scenic spots, forest parks, and wetlands, and this embodiment of the invention does not limit such areas; site selection in these areas may cause irreversible damage to the ecosystem.

[0043] Optionally, the basic farmland protection zone may include a specific area legally designated for special protection of basic farmland, used to ensure food security and maintain the sustainable use of arable land resources. This embodiment of the invention does not limit this. If the target project has potential environmental risks (such as groundwater pollution or radiation leakage), it will conflict with the agricultural production function of the basic farmland.

[0044] Optionally, active fault zones may include areas with active geological structures, which are prone to geological disasters such as earthquakes. Site selection in these areas may damage the disposal facilities of the target project and increase the risk of radioactive material leakage. Optionally, high-risk areas for geological disasters may include areas susceptible to geological disasters such as floods, landslides, and debris flows, as well as areas such as alluvial fans and gullies that have not yet been stabilized. This embodiment of the invention does not limit such areas. Site selection in these areas may lead to the destruction of disposal facilities and increase the risk of radioactive material spread.

[0045] Optionally, the karst area may include an underground cave system formed by soluble rocks (such as limestone, gypsum, etc.) through karst processes and its surrounding geological area, which is not limited in the embodiments of the present invention; the regional karst cave area has hidden dangers such as collapse, groundwater level fluctuation, and flood infiltration, which may lead to waste leakage or structural instability of facilities; in addition, the karst caves are highly connected with underground rivers, and radioactive materials can easily spread through water flow, threatening drinking water safety; in addition, caves often have unique biological communities (such as blind fish and cave bats), and waste disposal may affect the integrity of the ecosystem.

[0046] Optionally, the hazardous materials protection zone may include a specific area for storing and using flammable, explosive, toxic, or harmful hazardous materials, and this embodiment of the invention does not impose any limitations on it; the site selection of the target project needs to avoid being adjacent to warehouses storing flammable and explosive hazardous materials to prevent the risk of radioactive material release caused by fire or explosion accidents.

[0047] Optionally, the traffic artery area is located near important traffic arteries, specifically including busy areas such as highways, railways, and major roads. This embodiment of the invention does not limit the scope of the area. Site selection in these areas may increase the risks during transportation and may also affect traffic safety and smooth flow.

[0048] Optionally, the buffer distance for prohibited selection areas can be determined in the following ways: the buffer distance for prohibited selection areas can be preset; or, the buffer distance for prohibited selection areas corresponding to each prohibited selection area can be determined according to the regional characteristics of each prohibited selection area. For example, the buffer distance for prohibited selection areas can be set to 500 meters, and the buffer distance for prohibited selection areas in active fault zones can be set to 1-2 km, or it can be set to other values. This embodiment of the invention does not limit the value.

[0049] Optionally, based on the prohibited selection area buffer distance and the prohibited selection area range, a buffer range matching the prohibited selection area range can be determined from the overlay map layer. Specifically, this can be done as follows: Obtain the pre-set site selection elevation; using a buffer analysis tool, determine the buffer range that matches the prohibited selection range and site selection elevation from the overlay map, based on the prohibited selection buffer distance and prohibited selection range. This embodiment of the invention does not limit the scope of the invention. Optionally, the site selection elevation can be above a flood level with a return period of 100 years or more, but this embodiment of the invention does not impose any limitation.

[0050] As can be seen, this optional embodiment can perform layer overlay processing on multi-dimensional spatial data based on a GIS system to obtain an overlay map. Then, it can determine the prohibited selection area range that matches the pre-determined prohibited site selection area information from the overlay map. Next, based on the prohibited selection area buffer distance and the prohibited selection area range, it can determine the buffer range that matches the pre-determined prohibited selection area range from the overlay map. Finally, it can exclude the prohibited selection area range and the buffer range from the overlay map to obtain the candidate site range. This can efficiently exclude the range of prohibited site selection areas and the buffer range that is close to the prohibited selection area, avoiding the target project from operating within the prohibited selection area or the buffer range, thereby threatening the ecological environment and residents' health. This helps to improve the screening efficiency and accuracy of the candidate site range, and thus helps to reduce the area range that needs to be risk-scored in the subsequent process, improving the processing efficiency of the subsequent risk-scoring. Furthermore, based on a pre-set visualization method, it generates a visualization classification map corresponding to the overlay map, which can help to more intuitively show the classification of each area to users.

[0051] In an optional embodiment, generating a risk matrix based on the determined risk assessment conditions and multi-dimensional basic survey data may include the following operations: Based on the established risk assessment conditions and multi-dimensional basic survey data, the risk assessment results corresponding to the candidate site range are determined. Among them, the risk assessment results include risk assessment sub-results corresponding to multiple candidate sites. The risk assessment sub-results include the estimated probability of occurrence of various risk factors and the estimated risk consequences for each risk factor. Based on the risk assessment sub-results corresponding to each candidate site, assess the risk level of that candidate site. A risk matrix is ​​generated based on the risk levels of all candidate sites.

[0052] Optionally, the estimated probability of occurrence of each risk factor can be represented by a specific numerical value, or it can be specifically defined as one of high probability, medium probability, and low probability. This embodiment of the invention does not limit this. Also, the estimated risk consequence corresponding to each risk factor can be used to represent the severity of the possible consequences when the risk accident corresponding to that risk factor occurs. Optionally, the estimated risk consequence can be one of major level, medium level, and minor level. This embodiment of the invention does not limit this.

[0053] Optionally, the risk level corresponding to each candidate site can be one of low risk, medium risk, and high risk, and this embodiment of the invention does not limit it.

[0054] Optionally, based on the risk assessment sub-results corresponding to each candidate site, the risk level of that candidate site can be assessed, which can be specifically as follows: For each candidate site, for each risk factor, the risk sub-level of the candidate site with respect to the risk factor is determined based on the estimated probability of occurrence of the risk for that candidate site with respect to the risk factor and the estimated risk consequences for that risk factor. For each candidate site, the maximum value of the risk sub-levels corresponding to all risk factors is determined as the risk level corresponding to that candidate site.

[0055] For example, when the estimated probability of a risk occurring is high and the estimated consequence of the risk is severe, the risk sub-level corresponding to the risk factor is a high-risk level. This embodiment of the invention does not impose any limitations.

[0056] As can be seen, this optional embodiment can first determine the risk assessment results corresponding to the candidate site range based on the risk assessment conditions and multi-dimensional basic survey data, and then assess the risk level corresponding to the candidate site based on the risk assessment results, thereby generating a risk matrix. It can achieve a more comprehensive and accurate risk assessment for each candidate site based on different risk factors, which is conducive to improving the accuracy of the risk level assessment of each candidate site, thereby improving the accuracy of the risk matrix generation, and further improving the accuracy of the subsequent determination of the best site.

[0057] In this optional embodiment, the risk assessment conditions may include a variety of risk assessment sub-conditions, each of which is one of the following: ecological environment and sensitive area assessment conditions, geological assessment conditions, hydrological and disaster assessment conditions, population distribution and protection assessment conditions, transportation and infrastructure assessment conditions, and environmental quality status and prediction assessment conditions.

[0058] In this optional embodiment, the risk assessment result corresponding to the candidate site range can be determined based on the determined risk assessment conditions and multi-dimensional basic survey data, and may include the following operations: Based on each risk assessment sub-condition in the determined risk assessment conditions, and according to multi-dimensional basic exploration data, the risk assessment sub-results of each candidate site in the candidate site range are analyzed regarding the risk factors corresponding to the risk assessment sub-condition.

[0059] As can be seen, this optional embodiment can also analyze the risk assessment results of each candidate site based on multiple risk assessment sub-conditions, and further improve the accuracy of risk assessment for each candidate site, thereby helping to further improve the accuracy of risk level assessment for each candidate site.

[0060] In this optional embodiment, optionally, based on each risk assessment sub-condition in the determined risk assessment conditions, and according to multi-dimensional basic survey data, analyzing the risk assessment sub-results of each candidate site within the candidate site range regarding the risk factors corresponding to that risk assessment sub-condition may include the following operations: When the risk assessment sub-condition is the ecological environment and sensitive area assessment condition, obtain the project data corresponding to the target project; wherein, the project data includes the site function corresponding to the target project and the estimated pollution data corresponding to the target project; Based on multi-dimensional basic survey data and project data, the ecological and environmental impacts of the target project at each candidate site are assessed. The ecological and environmental impacts may include the impacts on surrounding biodiversity, vegetation cover, and ecosystem function. Based on the estimated impacts on the ecological environment, evaluate the risk assessment sub-results for each candidate site regarding ecological and environmental risk factors.

[0061] As can be seen, this optional embodiment can also assess the estimated ecological and environmental impact of the target project at each candidate site based on multi-dimensional basic survey data and the project data corresponding to the target project when the risk assessment sub-condition is the ecological environment and sensitive area assessment condition. Then, based on the estimated ecological and environmental impact, it can assess the risk assessment sub-results of each candidate site regarding ecological and environmental risk factors. This enables intelligent analysis of the risk of ecological and environmental damage caused by each candidate site, thereby improving the accuracy of determining the risk assessment sub-results of each candidate site regarding ecological and environmental risk factors, and further improving the accuracy of risk assessment for each candidate site.

[0062] In this optional embodiment, optionally, based on each risk assessment sub-condition in the determined risk assessment conditions, and according to multi-dimensional basic survey data, analyzing the risk assessment sub-results of each candidate site within the candidate site range regarding the risk factors corresponding to that risk assessment sub-condition may include the following operations: When the risk assessment sub-condition is a geological assessment condition, for each candidate site, the geological condition analysis results corresponding to the candidate site are determined based on geological data; the geological condition analysis results include the results of rock and soil property analysis, foundation bearing capacity, seismic fortification intensity, and geological structure analysis. Determine whether the foundation bearing capacity meets the engineering bearing capacity conditions corresponding to the target project to obtain the first geological judgment result; Determine whether the seismic fortification intensity is higher than or equal to the intensity threshold corresponding to the obtained seismic design code to obtain the second geological judgment result; Based on the results of the geotechnical property analysis and the geological structure analysis, the geological stability and barrier performance of the candidate site were determined. Based on the results of the first geological assessment, the second geological assessment, geological stability, and barrier performance, the risk assessment sub-results of the geological structural risk factors corresponding to the geological assessment conditions for this candidate site are determined.

[0063] Optionally, the geological condition analysis results corresponding to the candidate site can be determined based on geological data. Specifically, the geological condition analysis results corresponding to the candidate site can be determined based on the stratigraphic distribution, soil and rock type, and corresponding physical and mechanical properties of the candidate site. This embodiment of the invention does not limit the scope of the analysis.

[0064] It is understandable that when the soil and rock at the candidate site have good foundation bearing capacity and barrier properties, it can effectively prevent the migration of radioactive materials that may be generated by the target project.

[0065] Optionally, when the first geological judgment result or the second geological judgment result is negative, or when the geological stability value is lower than the preset stability threshold, or when the barrier performance does not meet the preset barrier performance conditions, the estimated probability of the candidate site's geological structure risk factors is high and / or the estimated risk consequences are serious. This embodiment of the invention does not limit this.

[0066] As can be seen, this optional embodiment can also, when the risk assessment sub-condition is a geological assessment condition, determine the geological condition analysis result corresponding to each candidate site based on geological data, then determine whether the foundation bearing capacity meets the engineering bearing capacity condition corresponding to the target project, and determine whether the seismic fortification intensity is higher than or equal to the intensity threshold corresponding to the obtained seismic code. Based on the results of rock and soil property analysis and geological structure analysis, the geological stability and barrier performance corresponding to the candidate site are determined. Then, by combining the above geological judgment results, geological stability and barrier performance, the risk assessment sub-result of the candidate site with respect to the geological structure risk factors corresponding to the geological assessment condition is determined. This can realize intelligent analysis of the risk of damage to the geological structure stability of each candidate site, thereby improving the accuracy of determining the risk assessment sub-result of each candidate site with respect to the geological structure risk factors, and thus further improving the accuracy of the risk assessment of each candidate site.

[0067] In this optional embodiment, optionally, based on each risk assessment sub-condition in the determined risk assessment conditions, and according to multi-dimensional basic survey data, analyzing the risk assessment sub-results of each candidate site within the candidate site range regarding the risk factors corresponding to that risk assessment sub-condition may include the following operations: When the risk assessment sub-condition is a hydrological and disaster assessment condition, for each candidate site, the groundwater parameters corresponding to the candidate site are analyzed based on hydrological data; the groundwater parameters include groundwater flow direction, groundwater flow velocity, and permeability coefficient. Based on groundwater parameters, the analysis results of the natural foundation layer corresponding to the candidate site are determined; the analysis results of the natural foundation layer include the natural foundation layer impermeability coefficient, the natural foundation layer thickness, and the distance between the surface of the natural foundation layer and the groundwater level. Based on the analysis results of groundwater parameters and natural foundation layers, the risk assessment sub-results for groundwater risk factors corresponding to the hydrological and disaster assessment conditions of this candidate site were determined. Based on geological data, hydrological data, and historical disaster data of the surrounding area of ​​the candidate site, risk assessment sub-results for disaster risk factors corresponding to the hydrological and disaster assessment conditions of the candidate site are determined; among them, disaster risk factors include risk factors of multiple disaster types.

[0068] Optionally, based on groundwater parameters and natural foundation layer analysis results, the risk assessment sub-results for groundwater risk factors corresponding to the hydrological and hazard assessment conditions of the candidate site can be determined as follows: Determine whether the seepage prevention coefficient of the natural foundation layer is greater than or equal to the preset seepage prevention coefficient threshold (e.g., 1×10-5cm / s) to obtain the first hydrological judgment result; Determine whether the thickness of the natural base layer is greater than or equal to a preset thickness threshold (e.g., 2m) to obtain the second hydrological judgment result; Determine whether the distance between the surface of the natural foundation layer and the groundwater level is greater than or equal to a preset distance threshold (e.g., 3m) to obtain the third hydrological judgment result; Based on groundwater parameters, the first hydrological assessment result, the second hydrological assessment result, and the third hydrological assessment result, the risk assessment sub-results for groundwater risk factors of the candidate site are determined.

[0069] Optionally, the method may further include the following operations: when the first hydrological assessment result or the second hydrological assessment result is negative, determine whether the effectiveness of hydrological protection measures taken in response to the first hydrological assessment result or the second hydrological assessment result meets the hydrological protection conditions; when the assessment result is positive, generate a hydrological risk reduction coefficient corresponding to the hydrological protection measures, and adjust the risk assessment sub-result of the candidate site regarding groundwater risk factors based on the hydrological risk reduction coefficient. This embodiment of the invention does not limit the scope of the method.

[0070] For example, when the first hydrological assessment result or the second hydrological assessment result is negative, corresponding hydrological protection measures can be taken during the construction of the target project (such as using a rigid anti-seepage structure or an artificial composite liner). This embodiment of the invention does not limit this.

[0071] Optionally, the surrounding historical disaster data may include one or more of the following combinations: landslide disaster data, debris flow data, collapse data, active sand dune data, tsunami impact area data, and abandoned mining area subsidence area data around the candidate site. This embodiment of the invention does not limit the data.

[0072] As can be seen, this optional embodiment can also, when the risk assessment sub-condition is a hydrological and disaster assessment condition, analyze the groundwater parameters corresponding to each candidate site based on hydrological data, determine the analysis results of the natural foundation layer corresponding to the candidate site based on the groundwater parameters, and then, combining the groundwater parameters and the natural foundation layer analysis results, determine the risk assessment sub-result of the candidate site regarding the groundwater risk factors corresponding to the hydrological and disaster assessment conditions. Furthermore, based on geological data, hydrological data, and the obtained historical disaster data of the surrounding area of ​​the candidate site, it can determine the risk assessment sub-result of the candidate site regarding the disaster risk factors corresponding to the hydrological and disaster assessment conditions. This enables intelligent analysis of the risk of groundwater source damage and the risk of damage to the target project construction caused by surrounding disasters for each candidate site, thereby improving the accuracy of determining the risk assessment sub-results of groundwater risk factors and disaster risk factors for each candidate site, and further improving the accuracy of risk assessment for each candidate site.

[0073] In this optional embodiment, optionally, based on each risk assessment sub-condition in the determined risk assessment conditions, and according to multi-dimensional basic survey data, analyzing the risk assessment sub-results of each candidate site within the candidate site range regarding the risk factors corresponding to that risk assessment sub-condition may include the following operations: When the risk assessment sub-condition is population distribution and protection assessment condition, the pre-set population density survey statistical site selection radius distance is obtained, and the population characteristic data corresponding to each candidate site based on the population density survey statistical site selection radius distance is obtained; wherein, the population characteristic data includes population distribution characteristics and population flow characteristics; Based on population data and / or the aforementioned population characteristic data from the multi-dimensional basic survey data, the risk assessment sub-results regarding population protection risk factors for the candidate site are determined.

[0074] Among them, the risk assessment sub-results regarding population protection risk factors can be used to indicate the estimated risks to human health and population concentration posed by constructing the target project at the candidate site.

[0075] As can be seen, this optional embodiment can also obtain the pre-set population density survey and statistical site selection radius distance and the population characteristic data corresponding to the population density survey and statistical site selection radius distance for each candidate site when the risk assessment sub-condition is population distribution and protection assessment condition. Then, based on the population data in the multi-dimensional basic survey data and / or the above-mentioned population characteristic data, the risk assessment sub-result of the candidate site regarding population protection risk factors can be determined. This can realize intelligent analysis of the risk of each candidate site causing harm to the surrounding population, thereby improving the accuracy of determining the risk assessment sub-result of each candidate site regarding population protection risk factors, and further improving the accuracy of risk assessment for each candidate site.

[0076] In this optional embodiment, optionally, based on each risk assessment sub-condition in the determined risk assessment conditions, and according to multi-dimensional basic survey data, analyzing the risk assessment sub-results of each candidate site within the candidate site range regarding the risk factors corresponding to that risk assessment sub-condition may include the following operations: When the risk assessment sub-condition is the transportation and infrastructure assessment condition, for each candidate site, based on multi-dimensional basic survey data, it is determined whether the surrounding road transportation conditions of the candidate site meet the pre-set requirements for the safe transportation of radioactive materials, and the transportation judgment result is obtained. Based on multi-dimensional basic survey data, it is determined whether the distance between the candidate site and the surrounding infrastructure is less than or equal to a pre-set reachability threshold, thus obtaining the infrastructure assessment result; among which, the surrounding infrastructure includes water and electricity supply facilities, emergency roads, fire-fighting facilities, and medical resources; Based on the project data and multi-dimensional basic survey data of the target project, we analyze the regional solid waste treatment capacity corresponding to the candidate site and the impact of the target project on the surrounding environmental carrying capacity at the candidate site. Based on the traffic assessment results, infrastructure assessment results, regional solid waste treatment capacity, and impact analysis on the surrounding environmental carrying capacity, the risk assessment sub-results of the candidate site regarding emergency response risk factors are analyzed.

[0077] As can be seen, this optional embodiment can also, when the risk assessment sub-condition is a transportation and infrastructure assessment condition, determine, for each candidate site, whether the surrounding road transportation conditions of the candidate site meet the requirements for safe transportation of radioactive materials based on multi-dimensional basic survey data, and whether the distance between the candidate site and the surrounding infrastructure is less than or equal to the reachable distance threshold. Furthermore, based on project data and multi-dimensional basic survey data, it analyzes the regional solid waste treatment capacity corresponding to the candidate site and the impact analysis results of the target project on the surrounding environmental carrying capacity at the candidate site. Then, by comprehensively considering the above-mentioned transportation judgment results, infrastructure judgment results, regional solid waste treatment capacity, and impact analysis results on the surrounding environmental carrying capacity, it analyzes the risk assessment sub-results of the candidate site regarding emergency response risk factors. This enables intelligent analysis from multiple dimensions to determine whether the surrounding area of ​​each candidate site possesses matching emergency response capabilities, thereby improving the accuracy of determining the risk assessment sub-results of each candidate site regarding emergency response risk factors, and further contributing to improving the accuracy of risk assessment for each candidate site.

[0078] In this optional embodiment, optionally, based on each risk assessment sub-condition in the determined risk assessment conditions, and according to multi-dimensional basic survey data, analyzing the risk assessment sub-results of each candidate site within the candidate site range regarding the risk factors corresponding to that risk assessment sub-condition may include the following operations: When the risk assessment sub-condition is the environmental quality status and prediction assessment condition, for each candidate site, background monitoring is carried out on the candidate site to obtain the background monitoring results; among them, the background monitoring is used to monitor the radiation dose rate, surface water / groundwater quality, and soil radionuclides data; Based on multi-dimensional basic survey data and baseline monitoring results, the predicted environmental pollution risk of the target project during its operation at the candidate site under scenarios of leachate leakage and / or radioactive material migration is used as a sub-result of the risk assessment on environmental pollution risk factors.

[0079] As can be seen, this optional embodiment can also, when the risk assessment sub-conditions are the current environmental quality status and the prediction assessment conditions, conduct baseline monitoring for each candidate site to obtain the baseline monitoring results, and then, based on multi-dimensional basic survey data and the baseline monitoring results, predict the environmental pollution risk prediction results of the target project during its operation at the candidate site under the scenarios of leachate leakage and / or radioactive material migration. This prediction result serves as a risk assessment sub-result regarding environmental pollution risk factors. This enables intelligent simulation and analysis of the environmental pollution risk to the surrounding area caused by each candidate site, thereby improving the accuracy of determining the risk assessment sub-results regarding environmental pollution risk factors for each candidate site, and further enhancing the accuracy of risk assessment for each candidate site.

[0080] Example 2 Please see Figure 2 , Figure 2 This is a flowchart illustrating a site selection assessment method for low-radioactive solid waste disposal sites disclosed in an embodiment of the present invention. Figure 2 The described site selection assessment method for low-level radioactive solid waste disposal sites can be applied to a site selection assessment system for low-level radioactive solid waste disposal sites. This system may include one of the following: intelligent devices, intelligent terminals, intelligent systems, and servers. The server may include a local server or a cloud server; this embodiment of the invention does not limit the specific components. Figure 2 As shown, the site selection assessment method for this low-level radioactive solid waste disposal site may include the following operations: 201. Collect multi-dimensional location reference data for the target location task.

[0081] In this embodiment of the invention, the target site selection task is used to select a site for a target project; the multi-dimensional site selection reference data includes multi-dimensional spatial data and multi-dimensional basic survey data; the multi-dimensional spatial data includes multiple layers of data; the multi-dimensional basic survey data includes ecological data, geological data, hydrological data, population data, transportation data, and environmental quality data.

[0082] 202. Based on multi-dimensional spatial data, perform GIS spatial analysis operations to obtain GIS spatial assessment results.

[0083] In this embodiment of the invention, the GIS spatial assessment results include the candidate site range and a visual classification map.

[0084] 203. Based on the determined risk assessment conditions, a risk matrix is ​​generated according to multi-dimensional basic survey data.

[0085] In this embodiment of the invention, the risk assessment matrix records the risk levels corresponding to multiple candidate sites within the candidate site range.

[0086] 204. Based on the GIS spatial assessment results, determine the spatial score corresponding to each candidate site.

[0087] In this embodiment of the invention, the spatial score is used to represent the spatial rationality of the candidate site; wherein, the spatial score may include the distance score of the candidate site relative to the surrounding prohibited selection areas and the spatial suitability score corresponding to the candidate site; wherein, the farther the candidate site is from the surrounding prohibited selection areas, the higher the distance score; the lower the threat level of the candidate site to the surrounding ecological environment, the higher the spatial suitability score.

[0088] 205. Based on the risk matrix, determine the risk score corresponding to each candidate site.

[0089] In this embodiment of the invention, each risk level is mapped to one of the risk score intervals / risk score values, and the higher the risk level, the higher the risk score; for example, a high risk level can correspond to a risk score of 90 points, but this embodiment of the invention does not limit this.

[0090] 206. For each candidate site, calculate the comprehensive score corresponding to the candidate site based on the spatial score and the risk score corresponding to the candidate site.

[0091] In this embodiment of the invention, step 206 may optionally be: For each candidate site, obtain the first weight corresponding to the spatial score and the second weight corresponding to the risk score; The first comprehensive score is obtained by multiplying the spatial score by the first weight. The second comprehensive score is obtained by multiplying the risk score by the second weight. The difference between the first comprehensive score and the second comprehensive score is calculated to obtain the comprehensive score corresponding to the candidate site.

[0092] Since spatial scoring is a positive impact assessment for evaluating the environmental impact of candidate sites, while risk scoring is a negative impact assessment, spatial scoring can be understood as a bonus for candidate sites, and risk scoring as a deduction for candidate sites.

[0093] 207. Select the candidate sites with a comprehensive score higher than the preset score threshold from all candidate sites and use them as the optimal sites.

[0094] For further detailed descriptions of steps 201-203 in this embodiment of the invention, please refer to the detailed description of steps 101-103 in Embodiment 1. These descriptions will not be repeated in this embodiment of the invention.

[0095] As can be seen, the method described in the embodiments of the present invention can collect multi-dimensional site selection reference data for the target site selection task, and then perform GIS spatial analysis operations based on the multi-dimensional spatial data to filter out candidate site ranges and generate a visual classification map. Based on risk assessment conditions and multi-dimensional basic survey data, a risk matrix is ​​generated that records the risk levels of multiple candidate sites within the candidate site range. Then, based on the GIS spatial assessment results and the risk matrix, the optimal site corresponding to the target project is determined. The analytic hierarchy process (AHP) can be used to achieve intelligent assessment of project site selection for the disposal of associated low-level radioactive solid waste, improving the comprehensiveness and reliability of project site selection assessment. This is beneficial for providing a scientific and reliable assessment basis for project site selection, thereby improving the reliability, safety, and stability of the determined optimal site, and ultimately helping to ensure the environmental safety and sustainable development of the project area. Furthermore, it can determine the spatial score corresponding to each candidate site based on the GIS spatial assessment results, and determine the risk score corresponding to each candidate site based on the risk matrix. Then, it can calculate the comprehensive score corresponding to each candidate site by combining the spatial score and risk score. Finally, it can select candidate sites with comprehensive scores higher than the preset score threshold from all candidate sites as the optimal sites. This can further improve the accuracy of the analysis of the spatial location and risk of each candidate site, thereby improving the accuracy of the comprehensive score of the candidate sites. This is conducive to selecting sites with low risk and high spatial rationality as the optimal sites, which in turn helps to further improve the reliability, security and stability of the optimal sites.

[0096] Example 3 Please see Figure 3 , Figure 3 This is a schematic diagram of a site selection assessment system for low-radioactive solid waste disposal sites disclosed in an embodiment of the present invention. Figure 3 The described site selection assessment system for low-level radioactive solid waste disposal sites may include one of the following: intelligent devices, intelligent terminals, intelligent systems, and servers. The server may be a local server or a cloud server; this embodiment of the invention does not limit the scope of the system. Figure 3 As shown, the site selection assessment system for this low-level radioactive solid waste disposal site may include: The data acquisition module 301 is used to collect multi-dimensional site selection reference data for the target site selection task; wherein, the target site selection task is used to select a site for the target project; the multi-dimensional site selection reference data includes multi-dimensional spatial data and multi-dimensional basic survey data; the multi-dimensional spatial data includes data from multiple layers; the multi-dimensional basic survey data includes ecological data, geological data, hydrological data, population data, transportation data, and environmental quality data; The spatial assessment module 302 is used to perform GIS spatial analysis operations based on multi-dimensional spatial data to obtain GIS spatial assessment results; the GIS spatial assessment results include candidate site ranges and visual classification maps; The risk assessment module 303 is used to generate a risk matrix based on the determined risk assessment conditions and multi-dimensional basic survey data; wherein, the risk assessment matrix records the risk level corresponding to multiple candidate sites in the candidate site range; Module 304 is used to determine the optimal site for the target project based on the GIS spatial assessment results and risk matrix.

[0097] As can be seen, the system described in this embodiment of the invention can collect multi-dimensional site selection reference data for the target site selection task, and then perform GIS spatial analysis operations based on the multi-dimensional spatial data to filter out candidate site ranges and generate a visual classification map. Based on risk assessment conditions and multi-dimensional basic survey data, a risk matrix is ​​generated that records the risk levels of multiple candidate sites within the candidate site range. Then, based on the GIS spatial assessment results and the risk matrix, the optimal site corresponding to the target project is determined. The system can use the analytic hierarchy process to achieve intelligent assessment of project site selection for the disposal of associated low-level radioactive solid waste, improving the comprehensiveness and reliability of project site selection assessment. This is beneficial for providing a scientific and reliable assessment basis for project site selection, thereby improving the reliability, safety, and stability of the determined optimal site, and ultimately helping to ensure the environmental safety and sustainable development of the project area.

[0098] In an optional embodiment, the spatial assessment module 302 performs GIS spatial analysis operations based on multi-dimensional spatial data to obtain GIS spatial assessment results, and the specific method may include: Import multi-dimensional spatial data into the GIS system; Based on the GIS system, multi-dimensional spatial data is overlaid to obtain an overlaid map. Obtain information on pre-determined prohibited site selection areas and pre-determined buffer distances for prohibited site selection areas; wherein, the information on prohibited site selection areas includes a variety of prohibited site selection areas; each prohibited site selection area is one of the following: densely populated areas, water source protection areas, ecologically sensitive areas, basic farmland protection areas, active fault areas, high-risk areas for geological disasters, karst areas, hazardous materials protection areas, and main traffic artery areas; Determine the prohibited selection area range from the overlay map layers that matches the prohibited selection area information; Based on the prohibited selection buffer distance and the prohibited selection range, determine the buffer range that matches the prohibited selection range from the layer overlay map; By excluding prohibited areas and buffer zones from the overlay map, the candidate site range is obtained; Based on the pre-defined visualization methods, a visualization classification map corresponding to the layer overlay map is generated; wherein, the visualization methods include the first visualization method corresponding to the prohibited selection area, the second visualization method corresponding to the buffer area, and the third visualization method corresponding to the candidate site area.

[0099] As can be seen, the system described in this optional embodiment can perform layer overlay processing on multi-dimensional spatial data based on a GIS system to obtain an overlay map. Then, it determines the prohibited selection area range from the overlay map that matches pre-determined prohibited site selection area information. Next, based on the prohibited selection area buffer distance and the prohibited selection area range, it determines the buffer range from the overlay map that matches the pre-determined prohibited selection area range. Finally, it excludes the prohibited selection area range and the buffer range from the overlay map to obtain the candidate site range. This can efficiently exclude the range of prohibited site selection areas and the buffer range adjacent to the prohibited selection areas, preventing target projects from operating within prohibited selection areas or buffer ranges, thereby threatening the ecological environment and residents' health. This improves the efficiency and accuracy of candidate site range screening, and further reduces the area range that needs to be risk-scored subsequently, improving the processing efficiency of subsequent risk scoring. Furthermore, based on a pre-set visualization method, it generates a visual classification map corresponding to the overlay map, which can more intuitively display the classification of each area to the user.

[0100] In an optional embodiment, the risk assessment module 303 generates a risk matrix based on the determined risk assessment conditions and multi-dimensional basic survey data, which may include the following specific methods: Based on the established risk assessment conditions and multi-dimensional basic survey data, the risk assessment results corresponding to the candidate site range are determined. Among them, the risk assessment results include risk assessment sub-results corresponding to multiple candidate sites. The risk assessment sub-results include the estimated probability of occurrence of various risk factors and the estimated risk consequences for each risk factor. Based on the risk assessment sub-results corresponding to each candidate site, assess the risk level of that candidate site. A risk matrix is ​​generated based on the risk levels of all candidate sites.

[0101] As can be seen, the system described in this optional embodiment can first determine the risk assessment results corresponding to the candidate site range based on risk assessment conditions and multi-dimensional basic survey data, and then assess the risk level corresponding to the candidate site based on the risk assessment results, thereby generating a risk matrix. It can achieve a more comprehensive and accurate risk assessment for each candidate site based on different risk factors, which is conducive to improving the accuracy of risk level assessment for each candidate site, thereby improving the accuracy of risk matrix generation, and further improving the accuracy of subsequent determination of the best site.

[0102] In this optional embodiment, the risk assessment conditions may include a variety of risk assessment sub-conditions, each of which is one of the following: ecological environment and sensitive area assessment conditions, geological assessment conditions, hydrological and disaster assessment conditions, population distribution and protection assessment conditions, transportation and infrastructure assessment conditions, and environmental quality status and prediction assessment conditions. Among them, the risk assessment module 303, based on the determined risk assessment conditions and multi-dimensional basic survey data, determines the specific method for determining the risk assessment results corresponding to the candidate site range, which may include: Based on each risk assessment sub-condition in the determined risk assessment conditions, and according to multi-dimensional basic exploration data, the risk assessment sub-results of each candidate site in the candidate site range are analyzed regarding the risk factors corresponding to the risk assessment sub-condition.

[0103] As can be seen, the system described in this optional embodiment can also analyze the risk assessment results of each candidate site based on multiple risk assessment sub-conditions, and further improve the accuracy of risk assessment for each candidate site, thereby helping to further improve the accuracy of risk level assessment for each candidate site.

[0104] In this optional embodiment, optionally, the risk assessment module 303, based on each risk assessment sub-condition in the determined risk assessment conditions, and according to multi-dimensional basic survey data, analyzes the specific method of the risk assessment sub-results for each candidate site within the candidate site range regarding the risk factors corresponding to that risk assessment sub-condition, which may include: When the risk assessment sub-condition is a geological assessment condition, for each candidate site, the geological condition analysis results corresponding to the candidate site are determined based on geological data; the geological condition analysis results include the results of rock and soil property analysis, foundation bearing capacity, seismic fortification intensity, and geological structure analysis. Determine whether the foundation bearing capacity meets the engineering bearing capacity conditions corresponding to the target project to obtain the first geological judgment result; Determine whether the seismic fortification intensity is higher than or equal to the intensity threshold corresponding to the obtained seismic design code to obtain the second geological judgment result; Based on the results of the geotechnical property analysis and the geological structure analysis, the geological stability and barrier performance of the candidate site were determined. Based on the results of the first geological assessment, the second geological assessment, geological stability, and barrier performance, the risk assessment sub-results of the geological structural risk factors corresponding to the geological assessment conditions for this candidate site are determined.

[0105] As can be seen, the system described in this optional embodiment can also, when the risk assessment sub-condition is a geological assessment condition, determine the geological condition analysis result corresponding to each candidate site based on geological data, then determine whether the foundation bearing capacity meets the engineering bearing capacity condition corresponding to the target project, and determine whether the seismic fortification intensity is higher than or equal to the intensity threshold corresponding to the obtained seismic code. Based on the results of rock and soil property analysis and geological structure analysis, the system determines the geological stability and barrier performance corresponding to the candidate site. Then, by combining the above geological judgment results, geological stability, and barrier performance, the system determines the risk assessment sub-result of the candidate site regarding the geological structure risk factors corresponding to the geological assessment condition. This enables intelligent analysis of the risk of damage to the geological structure stability of each candidate site, thereby improving the accuracy of determining the risk assessment sub-result of each candidate site regarding the geological structure risk factors, and further improving the accuracy of the risk assessment of each candidate site.

[0106] In this optional embodiment, optionally, the risk assessment module 303, based on each risk assessment sub-condition in the determined risk assessment conditions, and according to multi-dimensional basic survey data, analyzes the specific method of the risk assessment sub-results for each candidate site within the candidate site range regarding the risk factors corresponding to that risk assessment sub-condition, which may include: When the risk assessment sub-condition is a hydrological and disaster assessment condition, for each candidate site, the groundwater parameters corresponding to the candidate site are analyzed based on hydrological data; the groundwater parameters include groundwater flow direction, groundwater flow velocity, and permeability coefficient. Based on groundwater parameters, the analysis results of the natural foundation layer corresponding to the candidate site are determined; the analysis results of the natural foundation layer include the natural foundation layer impermeability coefficient, the natural foundation layer thickness, and the distance between the surface of the natural foundation layer and the groundwater level. Based on the analysis results of groundwater parameters and natural foundation layers, the risk assessment sub-results for groundwater risk factors corresponding to the hydrological and disaster assessment conditions of this candidate site were determined. Based on geological data, hydrological data, and historical disaster data of the surrounding area of ​​the candidate site, the risk assessment sub-results of the disaster risk factors corresponding to the hydrological and disaster assessment conditions of the candidate site are determined; among them, the disaster risk factors include risk factors of multiple disaster types.

[0107] As can be seen, the system described in this optional embodiment can also, when the risk assessment sub-condition is a hydrological and disaster assessment condition, analyze the groundwater parameters corresponding to each candidate site based on hydrological data, determine the analysis results of the natural foundation layer corresponding to the candidate site based on the groundwater parameters, and then, combining the groundwater parameters and the natural foundation layer analysis results, determine the risk assessment sub-result of the candidate site regarding the groundwater risk factors corresponding to the hydrological and disaster assessment conditions. Furthermore, based on geological data, hydrological data, and the obtained historical disaster data of the surrounding area of ​​the candidate site, it can determine the risk assessment sub-result of the candidate site regarding the disaster risk factors corresponding to the hydrological and disaster assessment conditions. This enables intelligent analysis of the risk of damage to groundwater sources and the risk of damage to the target project construction caused by surrounding disasters for each candidate site, thereby improving the accuracy of determining the risk assessment sub-results of groundwater risk factors and disaster risk factors for each candidate site, and further improving the accuracy of risk assessment for each candidate site.

[0108] In an optional embodiment, the specific method by which the determining module 304 determines the optimal site corresponding to the target project based on the GIS spatial assessment results and the risk matrix may include: Based on the GIS spatial assessment results, a spatial score is determined for each candidate site. The spatial score is used to indicate the spatial rationality of the candidate site. The spatial score includes the distance score of the candidate site relative to the surrounding prohibited selection areas and the spatial suitability score of the candidate site. Based on the risk matrix, determine the risk score corresponding to each candidate site; For each candidate site, a comprehensive score is calculated based on the spatial score and risk score corresponding to the candidate site. The candidate sites with a comprehensive score higher than the preset score threshold are selected from all candidate sites and designated as the optimal sites.

[0109] As can be seen, the system described in this optional embodiment can determine the spatial score corresponding to each candidate site based on the GIS spatial assessment results, and determine the risk score corresponding to each candidate site based on the risk matrix. Then, it calculates the comprehensive score corresponding to each candidate site by combining the spatial score and risk score. Finally, it selects candidate sites with comprehensive scores higher than a preset score threshold from all candidate sites as the optimal sites. This can further improve the accuracy of the analysis of the spatial location and risk situation of each candidate site, thereby improving the accuracy of the comprehensive score of the candidate sites. This is conducive to selecting sites with low risk and high spatial rationality as the optimal sites, which in turn helps to further improve the reliability, security and stability of the optimal sites.

[0110] Example 4 Please see Figure 4 , Figure 4 This is a schematic diagram of another site selection assessment system for low-level radioactive solid waste disposal sites disclosed in an embodiment of the present invention. Figure 4 As shown, the site selection assessment system for this low-level radioactive solid waste disposal site may include: Memory 401 storing executable program code; Processor 402 coupled to memory 401; The processor 402 calls the executable program code stored in the memory 401 to execute some or all of the steps in the site selection assessment method for low-radioactive solid waste disposal sites described in Embodiment 1 or Embodiment 2 of the present invention.

[0111] Example 5 This invention discloses a computer storage medium storing computer instructions. When these computer instructions are invoked, they are used to execute some or all of the steps in the site selection assessment method for low-radioactive solid waste disposal sites described in Embodiment 1 or Embodiment 2 of this invention.

[0112] Example 6 This invention discloses a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform some or all of the steps in the site selection assessment method for low-radioactive solid waste disposal sites described in Embodiment 1 or Embodiment 2.

[0113] The system embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical modules; that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0114] Through the detailed description of the above embodiments, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, including read-only memory (ROM), random access memory (RAM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), one-time programmable read-only memory (OTPROM), electrically-Erasable Programmable Read-Only Memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, disk storage, magnetic tape storage, or any other computer-readable medium that can be used to carry or store data.

[0115] Finally, it should be noted that the site selection assessment method and system for low-radioactive solid waste disposal sites disclosed in the embodiments of the present invention are merely preferred embodiments of the present invention and are only used to illustrate the technical solutions of the present invention, not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for site selection assessment of low-radioactive solid waste disposal sites, characterized in that, The method includes: Collect multi-dimensional site selection reference data for the target site selection task; wherein, the target site selection task is used to select a site for the target project; the multi-dimensional site selection reference data includes multi-dimensional spatial data and multi-dimensional basic survey data; the multi-dimensional spatial data includes data from multiple layers; the multi-dimensional basic survey data includes ecological data, geological data, hydrological data, population data, transportation data, and environmental quality data; Based on the multi-dimensional spatial data, GIS spatial analysis operations are performed to obtain GIS spatial evaluation results; wherein, the GIS spatial evaluation results include candidate site ranges and visual classification maps; Based on the determined risk assessment conditions, a risk matrix is ​​generated according to the multi-dimensional basic survey data; wherein, the risk assessment matrix records the risk level corresponding to multiple candidate sites in the candidate site range; Based on the GIS spatial assessment results and the risk matrix, the optimal site for the target project is determined.

2. The site selection assessment method for low-radioactive solid waste disposal sites according to claim 1, characterized in that, The step of performing GIS spatial analysis operations based on the multi-dimensional spatial data to obtain GIS spatial evaluation results includes: Import the multi-dimensional spatial data into the GIS system; Based on the GIS system, the multi-dimensional spatial data is processed by layer overlay to obtain a layer overlay map; Obtain information on pre-determined prohibited site selection areas and pre-determined buffer distances for prohibited site selection areas; wherein, the information on prohibited site selection areas includes multiple prohibited site selection areas; each of the prohibited site selection areas is one of the following: densely populated areas, water source protection areas, ecologically sensitive areas, basic farmland protection areas, active fault areas, high-risk areas for geological disasters, karst areas, hazardous materials protection areas, and main traffic artery areas; Determine the prohibited selection area range from the overlay map that matches the prohibited location area information; Based on the prohibited selection area buffer distance and the prohibited selection area range, a buffer range matching the prohibited selection area range is determined from the overlay map layer; The prohibited selection area and the buffer area are excluded from the overlay map to obtain the candidate site range; Based on a pre-defined visualization method, a visualization classification map corresponding to the overlay map of the layers is generated; wherein, the visualization method includes a first visualization method corresponding to the prohibited selection area, a second visualization method corresponding to the buffer area, and a third visualization method corresponding to the candidate site area.

3. The site selection assessment method for low-radioactive solid waste disposal sites according to claim 1, characterized in that, Based on the determined risk assessment conditions and the multi-dimensional basic survey data, a risk matrix is ​​generated, including: Based on the determined risk assessment conditions, and according to the multi-dimensional basic survey data, the risk assessment results corresponding to the candidate site range are determined; wherein, the risk assessment results include risk assessment sub-results corresponding to multiple candidate sites; the risk assessment sub-results include the estimated probability of occurrence of various risk factors and the estimated risk consequences for each of the risk factors; Based on the risk assessment sub-results corresponding to each candidate site, assess the risk level corresponding to that candidate site; A risk matrix is ​​generated based on the risk levels corresponding to all the candidate sites.

4. The site selection assessment method for low-radioactive solid waste disposal sites according to claim 3, characterized in that, The risk assessment conditions include a variety of risk assessment sub-conditions, each of which is one of the following: ecological environment and sensitive area assessment conditions, geological assessment conditions, hydrological and disaster assessment conditions, population distribution and protection assessment conditions, transportation and infrastructure assessment conditions, and environmental quality status and prediction assessment conditions. The step of determining the risk assessment result corresponding to the candidate site range based on the determined risk assessment conditions and the multi-dimensional basic survey data includes: Based on each risk assessment sub-condition in the determined risk assessment conditions, and according to the multi-dimensional basic survey data, the risk assessment sub-results of each candidate site in the candidate site range with respect to the risk factors corresponding to the risk assessment sub-condition are analyzed.

5. The site selection assessment method for low-radioactive solid waste disposal sites according to claim 4, characterized in that, Based on each risk assessment sub-condition in the determined risk assessment conditions, and according to the multi-dimensional basic survey data, the risk assessment sub-results for each candidate site within the candidate site range regarding the risk factors corresponding to that risk assessment sub-condition are analyzed, including: When the risk assessment sub-condition is the geological assessment condition, for each candidate site, the geological condition analysis result corresponding to the candidate site is determined based on the geological data; the geological condition analysis result includes the rock and soil property analysis result, foundation bearing capacity, seismic fortification intensity and geological structure analysis result; Determine whether the bearing capacity of the foundation meets the engineering bearing capacity conditions corresponding to the target project, and obtain the first geological judgment result; Determine whether the earthquake fortification intensity is higher than or equal to the intensity threshold corresponding to the obtained seismic design code to obtain the second geological judgment result; Based on the results of the geotechnical property analysis and the results of the geological structure analysis, the geological stability and barrier performance of the candidate site are determined. Based on the first geological assessment result, the second geological assessment result, the geological stability, and the barrier performance, a risk assessment sub-result is determined for the geological structural risk factors corresponding to the geological assessment conditions of the candidate site.

6. The site selection assessment method for low-radioactive solid waste disposal sites according to claim 4, characterized in that, Based on each risk assessment sub-condition in the determined risk assessment conditions, and according to the multi-dimensional basic survey data, the risk assessment sub-results for each candidate site within the candidate site range regarding the risk factors corresponding to that risk assessment sub-condition are analyzed, including: When the risk assessment sub-condition is the hydrological and disaster assessment condition, for each candidate site, the groundwater parameters corresponding to the candidate site are analyzed based on the hydrological data; the groundwater parameters include groundwater flow direction, groundwater flow velocity, and permeability coefficient. Based on the groundwater parameters, the analysis results of the natural foundation layer corresponding to the candidate site are determined; the analysis results of the natural foundation layer include the natural foundation layer impermeability coefficient, the natural foundation layer thickness, and the distance from the surface of the natural foundation layer to the groundwater level; Based on the groundwater parameters and the analysis results of the natural foundation layer, the risk assessment sub-results of the groundwater risk factors corresponding to the hydrological and disaster assessment conditions for the candidate site are determined; Based on the geological data, the hydrological data, and the obtained historical disaster data of the surrounding area of ​​the candidate site, a risk assessment sub-result is determined for the candidate site with respect to the disaster risk factors corresponding to the hydrological and disaster assessment conditions; wherein, the disaster risk factors include risk factors of multiple disaster types.

7. The site selection assessment method for low-radioactive solid waste disposal sites according to any one of claims 1-6, characterized in that, The step of determining the optimal site for the target project based on the GIS spatial assessment results and the risk matrix includes: Based on the GIS spatial assessment results, a spatial score is determined for each candidate site; the spatial score is used to indicate the spatial rationality of the candidate site; the spatial score includes the distance score of the candidate site relative to the surrounding prohibited selection areas and the spatial suitability score of the candidate site; Based on the risk matrix, a risk score is determined for each candidate site; For each candidate site, a comprehensive score is calculated based on the spatial score and risk score corresponding to the candidate site. From all the candidate sites, the candidate sites with a comprehensive score higher than a preset score threshold are selected as the optimal sites.

8. A site selection assessment system for low-radioactive solid waste disposal sites, characterized in that, The system includes: The data acquisition module is used to collect multi-dimensional site selection reference data for a target site selection task; wherein, the target site selection task is used to select a site for a target project; the multi-dimensional site selection reference data includes multi-dimensional spatial data and multi-dimensional basic survey data; the multi-dimensional spatial data includes data from multiple layers; the multi-dimensional basic survey data includes ecological data, geological data, hydrological data, population data, transportation data, and environmental quality data; The spatial assessment module is used to perform GIS spatial analysis operations based on the multi-dimensional spatial data to obtain GIS spatial assessment results; wherein, the GIS spatial assessment results include candidate site ranges and a visual classification map; The risk assessment module is used to generate a risk matrix based on the determined risk assessment conditions and the multi-dimensional basic survey data; wherein, the risk assessment matrix records the risk levels corresponding to multiple candidate sites in the candidate site range; The determination module is used to determine the optimal site corresponding to the target project based on the GIS spatial assessment results and the risk matrix.

9. A site selection assessment system for low-radioactive solid waste disposal sites, characterized in that, The system includes: Memory containing executable program code; A processor coupled to the memory; The processor calls the executable program code stored in the memory to execute the site selection assessment method for low-radioactive solid waste disposal sites as described in any one of claims 1-7.

10. A computer storage medium, characterized in that, The computer storage medium stores computer instructions, which, when invoked, are used to execute the site selection assessment method for low-radioactive solid waste disposal sites as described in any one of claims 1-7.

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