A method and system for evaluating and analyzing the hydrogeological conditions of landfills in karst areas

Abstract

The present invention relates to the field of hydrogeological analysis, and in particular to a method and system for evaluating and analyzing the hydrogeological conditions of landfills in karst areas. The method includes the following steps: constructing an exploration data set of landfills in karst areas; analyzing the hydrogeological characteristics of the landfills in karst areas based on the exploration data set to obtain the hydrogeological parameters of the landfills in karst areas; constructing a hydrogeological assessment model of the landfills in karst areas according to the hydrogeological parameters; performing fitting analysis on the hydrogeological conditions of the landfills in karst areas according to the hydrogeological assessment model to obtain a model fitting result; and comprehensively evaluating and analyzing the hydrogeological conditions of the landfills in karst areas through the model fitting result. The present invention constructs a systematic exploration data set to ensure the comprehensiveness of data, constructs an assessment model based on hydrogeological parameters to fit and reflect the hydrogeological conditions, and provides a decision-making basis for the site selection, design and operation of landfills.

Description

Technical Field

[0001] The present invention relates to the field of hydrogeological analysis, and in particular to a method and system for evaluating and analyzing the hydrogeological conditions of landfills in karst areas. Background Art

[0002] The unique geological structure and complex groundwater dynamic changes in karst areas pose severe challenges to the siting and operation of landfills. Under karst landforms, the groundwater system is intricate, with extensive development of karst conduits, caves, and fissures, resulting in unpredictable groundwater flow paths, large water volume changes, and susceptibility to climate change and human activities. These characteristics make the evaluation of the hydrogeological conditions of landfills in karst areas a complex and crucial task.

[0003] With the progress of technology, modern technical means such as remote sensing technology, geophysical exploration, and geochemical exploration have gradually been applied to hydrogeological surveys in karst areas, providing new ideas and methods for evaluating the hydrogeological conditions of landfills in karst areas; the evaluation of the hydrogeological conditions of landfills in karst areas usually adopts a comprehensive application of multiple methods, including engineering geological investigation and mapping, remote sensing technology, comprehensive geophysical exploration method, engineering geological in-situ testing technology, tracer test, and model test. However, these technologies still face many challenges in practical applications, such as the fusion of different data types, the multi-solution nature of data interpretation, and the fusion and complementarity of different technical methods.

[0004] Therefore, it is particularly important to develop a scientific, systematic, and efficient method and system for evaluating and analyzing the hydrogeological conditions of landfills in karst areas. This method comprehensively applies multiple modern technical means to achieve the evaluation and analysis of the hydrogeological conditions of landfills in karst areas, providing reliable hydrogeological basis for the siting, design, construction, and operation of landfills, effectively preventing hydrogeological disasters, and ensuring the stable operation of landfills in karst areas. Summary of the Invention

[0005] Aiming at the defects in the prior art, the present invention provides a method and system for evaluating and analyzing the hydrogeological conditions of landfills in karst areas.

[0006] To achieve the above object, in a first aspect, the present invention provides a method for evaluating and analyzing the hydrogeological conditions of a landfill in a karst area, the method comprising the following steps: constructing an exploration data set of the landfill in the karst area; analyzing the hydrogeological characteristics of the landfill in the karst area based on the exploration data set to obtain the hydrogeological parameters of the landfill in the karst area; constructing a hydrogeological assessment model of the landfill in the karst area according to the hydrogeological parameters; performing fitting analysis on the hydrogeological conditions of the landfill in the karst area according to the hydrogeological assessment model to obtain a model fitting result; and comprehensively evaluating and analyzing the hydrogeological conditions of the landfill in the karst area through the model fitting result. By constructing a systematic exploration data set, the present invention ensures the comprehensiveness and accuracy of the analysis of the hydrogeological characteristics of the landfill in the karst area; constructing an assessment model based on accurate hydrogeological parameters improves the scientificity and reliability of the assessment; the model fitting analysis can reflect the actual hydrogeological conditions in detail and helps to discover potential risks; the final comprehensive evaluation analysis provides a scientific decision-making basis for the site selection, design and operation of the landfill, effectively reducing environmental risks and operation costs.

[0007] Optionally, the constructing of the exploration data set of the landfill in the karst area includes: obtaining the groundwater level, water volume, water quality, flow direction, flow velocity and chemical characteristics by exploring the hydrographic information of the landfill in the karst area; exploring the geological information of the landfill in the karst area to obtain the geological structure, rock characteristics, rock mass fractures and karst development; monitoring the meteorological information of the landfill in the karst area to obtain the rainfall, evaporation and temperature; and constructing the exploration data set of the landfill in the karst area based on the hydrographic information, geological information and meteorological information. The present invention comprehensively collects hydrographic information, geological information and meteorological information to ensure the exhaustiveness and accuracy of the data set; through the comprehensive exploration of the karst area, accurately grasps the groundwater dynamics, geological structure and climate conditions, providing a solid data basis for landfill assessment and subsequent planning, design and operation; constructing a multi-dimensional exploration data set provides comprehensive data support for subsequent hydrogeological analysis, improving the scientificity and effectiveness of the assessment of the hydrogeological conditions of the landfill in the karst area, and at the same time ensuring environmental safety and economic feasibility.

[0008] Optionally, analyzing the hydrogeological characteristics of the landfill in the karst area based on the exploration dataset to obtain the hydrogeological parameters of the landfill in the karst area, including: calculating the permeability of the rock stratum of the landfill in the karst area by using the exploration dataset; obtaining the permeability coefficient of the landfill in the karst area based on processing the exploration dataset; calculating the hydraulic conductivity coefficient and the pressure conductivity coefficient of the landfill in the karst area according to the permeability coefficient; obtaining the specific yield, the water release coefficient and the elastic water release coefficient of the landfill in the karst area through experiments; and analyzing the exploration dataset to obtain the porosity of the rock stratum of the landfill in the karst area. Through in-depth analysis and processing of the exploration dataset, the present invention accurately calculates multiple hydrogeological parameters of the landfill in the karst area, such as permeability, porosity, permeability coefficient, etc., and then derives key indicators such as hydraulic conductivity coefficient and specific yield. The above hydrogeological parameters provide a quantitative basis for evaluating the hydrogeological conditions of the landfill, enhance the accuracy and feasibility of the evaluation, and contribute to formulating a scientific and reasonable landfill management strategy.

[0009] Optionally, calculating the permeability of the rock stratum of the landfill in the karst area by using the exploration dataset includes:

[0010]

[0011] Wherein, is the permeability of the rock stratum in the test section, is the stable flow rate of the rock stratum in the test section, is the length of the rock stratum in the test section, is the pressure of the rock stratum in the test section. Based on the analysis and processing of the exploration dataset, the present invention represents the permeability of the rock stratum by using an expression, transforms the state expression of the rock stratum into an expression, improves the convenience of subsequent research and analysis, and enhances the rigor of the present invention.

[0012] Optionally, obtaining the permeability coefficient of the landfill in the karst area based on processing the exploration dataset includes:

[0013]

[0014] Wherein, is the permeability coefficient, is the water inflow, is the natural thickness of the aquifer, is the thickness of the aquifer during pumping, is the radius of influence of pumping, is the radius of the pumping well, is the average thickness of the aquifer during the pumping process of the aquifer, is the filter length. The present invention calculates the permeability coefficient of the landfill in the karst area using the detection data in the exploration dataset and represents it with an expression, providing a quantitative basis for the subsequent evaluation of the hydrogeological conditions of the landfill in the karst area and enhancing the accuracy of the evaluation results.

[0015] Optionally, constructing the hydrogeological evaluation model of the landfill in the karst area based on the hydrogeological parameters includes: performing standardization processing on the exploration dataset to obtain the characteristic dataset of the landfill in the karst area; introducing a loss function to construct the hydrogeological evaluation model of the landfill in the karst area based on the characteristic dataset. By performing standardization processing on the exploration dataset, the present invention ensures the consistency and comparability of the collected data, provides a standardized characteristic dataset for subsequent analysis, and introduces a loss function to construct a hydrogeological evaluation model, which can describe the complex relationships between data, improve the accuracy and generalization ability of model evaluation, and provide a scientific and efficient technical solution for the evaluation of the hydrogeological conditions of landfills in karst areas.

[0016] Optionally, introducing a loss function to construct the hydrogeological evaluation model of the landfill in the karst area based on the characteristic dataset includes:

[0017]

[0018] where, is the loss function, is the mean square error value, is the predicted value of the groundwater level height, is the actual value of the groundwater level height, is the mean absolute error, is the predicted value of the groundwater flow velocity, is the actual value of the groundwater flow velocity, is the loss term regarding the rock formation permeability, is the permeability coefficient, 、 and are the weight coefficients. The present invention introduces a loss function to construct the hydrogeological evaluation model of the landfill in the karst area, which can quantify the difference between the model predicted value and the actual value, continuously adjust the model parameters through an optimization algorithm to minimize the difference, not only improving the fitting ability of the model to the complex hydrogeological conditions in the karst area, but also enhancing the prediction accuracy and stability of the model, providing strong scientific and technical support for the safe operation of the landfill.

[0019] Optionally, the fitting analysis of the hydrogeological conditions of the landfill in the karst area according to the hydrogeological assessment model to obtain a model fitting result includes: fitting and analyzing the groundwater dynamic change characteristics, geological structure, rock characteristics, rock mass fractures and karst development conditions of the landfill in the karst area according to the hydrogeological assessment model to obtain a model fitting result. By comprehensively applying the hydrogeological assessment model, the present invention can comprehensively and accurately fit and analyze the groundwater dynamics, geological structure, rock characteristics, rock mass fractures and karst development conditions of the landfill in the karst area. The comprehensive analysis not only improves the understanding of the hydrogeological conditions of the landfill, but also ensures the accuracy and reliability of the evaluation results, providing a reference basis for the design, construction and operation of the landfill.

[0020] Optionally, the comprehensive evaluation and analysis of the hydrogeological conditions of the landfill in the karst area through the model fitting result includes: comparing and analyzing the model fitting result with the actual hydrogeological conditions of the landfill in the karst area to obtain a comparison result; comprehensively evaluating and analyzing the groundwater dynamic change characteristics, geological structure, rock characteristics, rock mass fractures and karst development conditions of the landfill in the karst area according to the comparison result. Through the comparative analysis of the model fitting result and the actual conditions, the present invention can intuitively show the accuracy of the evaluation model, and comprehensively evaluate the key hydrogeological characteristics of the landfill in the karst area based on the comparison result, ensuring the objectivity, comprehensiveness and accuracy of the evaluation, and providing a solid technical support for the scientific management and decision-making of the landfill.

[0021] In a second aspect, the present invention provides a hydrogeological condition evaluation and analysis system for a landfill in a karst area. The system executes the hydrogeological condition evaluation and analysis method provided by the present invention. The system includes an input device, an output device, a processor and a memory. The advantage lies in that: the integrated hardware facilities of the present invention have excellent performance. The input device, the output device, the processor and the memory are interconnected with each other, and the information transmission between each component is smooth. Through the interaction of multiple hardware facilities, an efficient information processing system is constructed. The present invention integrates high-performance hardware facilities to ensure the efficient and smooth input, processing and output of data. Each component closely cooperates to construct an efficient information processing system, realizing the accurate evaluation and analysis of the hydrogeological conditions of the landfill in the karst area, improving the decision-making efficiency and scientificity, and providing a scientific basis and technical support for the subsequent safe operation of the landfill. Description of the Drawings

[0022] Figure 1 It is a flowchart of a method for evaluating and analyzing the hydrogeological conditions of a landfill in a karst area according to an embodiment of the present invention;

[0023] Figure 2Schematic diagram of the groundwater equipotential lines in the area where the landfill in the karst area of the embodiment of the present invention is located;

[0024] Figure 3 Framework diagram of a hydrogeological condition evaluation and analysis system for a landfill in a karst area of the embodiment of the present invention. Specific implementation manners

[0025] The specific embodiments of the present invention will be described in detail below. It should be noted that the embodiments described here are only for illustrative purposes and are not used to limit the present invention. In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those of ordinary skill in the art that: the present invention does not have to employ these specific details. In other instances, well-known circuits, software, or methods have not been specifically described in order to avoid obscuring the present invention.

[0026] Throughout the specification, the reference to "one embodiment", "an embodiment", "one example" or "an example" means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment of the present invention. Thus, the phrases "in one embodiment", "in an embodiment", "one example" or "an example" appearing throughout the specification do not necessarily all refer to the same embodiment or example. In addition, the specific features, structures, or characteristics may be combined in any suitable combination and / or sub-combination in one or more embodiments or examples. In addition, those of ordinary skill in the art should understand that the drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0027] Please refer to Figure 1 , an embodiment of the present invention provides a method for evaluating and analyzing the hydrogeological conditions of a landfill in a karst area, and the method includes the following steps:

[0028] S1. Construct an exploration data set for the landfill in the karst area.

[0029] Among them, S1 specifically includes the following steps:

[0030] S11. Obtain the groundwater level, water volume, water quality, flow direction, flow velocity, and chemical characteristics by exploring the hydrographic information of the landfill in the karst area.

[0031] Specifically, in this embodiment, the water level information of groundwater is obtained by reasonably designing exploration points and using monitoring wells to detect the landfill in the karst area; the water volume information of groundwater in the karst area landfill is obtained by the method of pipeline water volume monitoring; groundwater samples are taken and the water quality information of the karst area landfill is analyzed through experiments; the flow direction information and flow velocity information of groundwater in the karst area landfill are obtained through tracer tests; groundwater samples are taken and the chemical characteristics of groundwater in the karst area landfill are obtained through laboratory chemical experiments; the obtained hydrological information is saved to the memory.

[0032] Furthermore, in this embodiment, for the purpose of obtaining valuable hydrogeological information, the basic characteristics of groundwater recharge-runoff-discharge are considered to design the location of the site's groundwater dynamic monitoring wells. Five new monitoring wells are arranged, as shown in Table 1:

[0033] Table 1 Monitoring Well Information Table

[0034]

[0035] More specifically, in this embodiment, please refer to Figure 2 , the figure shows the contour map of the groundwater level in the karst area landfill obtained through the monitoring wells, and the proposed scope of the landfill is divided according to the groundwater level distribution in the karst area.

[0036] S12. Explore the geological information of the karst area landfill to obtain the geological structure, rock characteristics, rock mass fractures and karst development.

[0037] Specifically, in this embodiment, the processor uses surveying and mapping technology to conduct geological surveys on the area where the karst area landfill is located, and then obtains the geological structure, rock characteristics, rock mass fractures and karst development of the area, and saves the obtained geological information to the memory.

[0038] S13. Monitor the meteorological information of the karst area landfill to obtain rainfall, evaporation and temperature.

[0039] Specifically, in this embodiment, a rain gauge recorder is used to monitor the rainfall in the area where the karst area landfill is located; an evapotranspiration meter is used to monitor the evaporation; a temperature sensor is used to collect temperature information, and the obtained meteorological information is saved to the memory.

[0040] S14. Construct an exploration data set for the karst area landfill based on the hydrological information, geological information and meteorological information.

[0041] Specifically, in this embodiment, a processor is used to perform data fusion on the hydrological information, geological information, and meteorological information by using geographic information system technology to construct an exploration data set, and at the same time, the exploration data set is saved to a memory.

[0042] S2. Analyze the hydrogeological characteristics of the landfill in the karst area based on the exploration data set to obtain the hydrogeological parameters of the landfill in the karst area.

[0043] Among them, S2 specifically includes the following steps:

[0044] S21. Use the exploration data set to calculate the permeability rate of the rock stratum of the landfill in the karst area.

[0045] Specifically, in this embodiment, the processor analyzes and processes the data in the exploration data set, conducts a constant head injection test to calculate the permeability rate of the rock stratum, and saves the calculation result of the permeability rate of the rock stratum in the memory, including:

[0046]

[0047] Among them, is the permeability rate of the rock stratum in the test section, is the stable flow rate of the rock stratum in the test section, is the length of the rock stratum in the test section, is the pressure of the rock stratum in the test section.

[0048] More specifically, in this embodiment, the test results of the constant head injection test include the calculation result of the permeability rate of the rock stratum and the permeability evaluation, as shown in Table 2:

[0049] Table 2 Test Results of Constant Head Injection Test

[0050]

[0051] S22. Obtain the coefficient of permeability of the landfill in the karst area based on processing the exploration data set.

[0052] Specifically, in this embodiment, the processor conducts a pumping test on the data in the exploration data set, and then calculates the coefficient of permeability of the landfill in the karst area, and saves the calculation result to the memory, including:

[0053]

[0054] Among them, is the coefficient of permeability, is the yield, is the natural thickness of the aquifer, is the thickness of the aquifer during pumping, is the radius of influence of pumping, is the radius of the pumping well, is the average thickness during the aquifer pumping process, is the filter length.

[0055] It should be noted that in this embodiment, since it is greatly affected by the water level and meteorology during the pumping test, the pumping influence radius includes:

[0056]

[0057] Among them, is the pumping influence radius, is the drawdown of the pumping well water level, is the natural thickness of the aquifer, is the permeability coefficient.

[0058] S23. Calculate the hydraulic conductivity and pressure conductivity of the landfill in the karst area according to the permeability coefficient.

[0059] Specifically, in this embodiment, the processor is used to represent the hydraulic conductivity of the landfill in the karst area based on the permeability coefficient and store it in the memory, including:

[0060]

[0061] Among them, is the hydraulic conductivity, is the permeability coefficient, is the aquifer thickness.

[0062] More specifically, in this embodiment, the processor is used to represent the pressure conductivity of the landfill in the karst area based on the permeability coefficient and store the result in the memory, including:

[0063]

[0064] Among them, is the pressure conductivity, is the permeability coefficient, is the storage coefficient.

[0065] S24. Obtain the specific yield, water release coefficient and elastic water release coefficient of the landfill in the karst area through tests.

[0066] Specifically, in this embodiment, the processor is used to obtain the specific yield, water release coefficient and elastic water release coefficient of the landfill in the karst area based on hydrogeological tests and combined with data simulation methods, and store the obtained data in the memory.

[0067] S25. Analyze the exploration data set to obtain the rock porosity of the landfill in the karst area.

[0068] Specifically, in this embodiment, the processor is used to conduct indoor conventional tests on 12 groups of undisturbed soil samples to measure the porosity, and a total of 11 groups of effective data are obtained. At the same time, the test results are saved in the memory, and the test results are shown in Table 3:

[0069] Table 3 Porosity of Quaternary silty clay

[0070]

[0071] S3. Construct a hydrogeological assessment model for the landfill in the karst area based on the hydrogeological parameters.

[0072] Among them, S3 specifically includes the following steps:

[0073] S31. Standardize the exploration data set to obtain the characteristic data set of the landfill in the karst area.

[0074] Specifically, in this embodiment, the processor is used to standardize the exploration data set based on the mean and standard deviation of the data in the exploration data set to obtain the characteristic data set, and at the same time save the characteristic data set in the memory, including:

[0075]

[0076] Among them, is the characteristic data, is the original data in the exploration data set, is the mean of the original data, is the standard deviation of the original data.

[0077] S32. Introduce a loss function to construct a hydrogeological assessment model for the landfill in the karst area based on the characteristic data set.

[0078] Specifically, in this embodiment, the processor introduces the mean square error of the groundwater level, the mean absolute error of the groundwater flow velocity, and the loss term of the rock layer permeability into the loss function with a certain weight to construct a hydrogeological assessment model, and saves the constructed hydrogeological assessment model in the memory, including:

[0079]

[0080] Among them, is the loss function, is the mean square error value, is the predicted value of the groundwater level height, is the actual value of the groundwater level height, is the mean absolute error, is the predicted value of the groundwater flow velocity, is the actual value of the groundwater flow velocity, is the loss term regarding the permeability of the rock formation, is the permeability coefficient, 、 and are the weight coefficients.

[0081] Furthermore, an optimizer is used to set the training parameters, and the hydrogeological assessment model is trained based on the feature dataset to minimize the model fitting result and the actual value.

[0082] S4. Perform a fitting analysis on the hydrogeological conditions of the landfill in the karst area according to the hydrogeological assessment model to obtain a model fitting result.

[0083] Specifically, in this embodiment, a processor is used to perform a fitting analysis on the groundwater dynamic change characteristics, geological structure, rock characteristics, rock mass fractures, and karst development conditions of the landfill in the karst area according to the hydrogeological assessment model to obtain a model fitting result, and the model fitting result is stored in a memory.

[0084] S5. Perform a comprehensive evaluation and analysis on the hydrogeological conditions of the landfill in the karst area through the model fitting result.

[0085] Among them, S5 specifically includes the following steps:

[0086] S51. Compare and analyze the model fitting result with the actual hydrogeological conditions of the landfill in the karst area to obtain a comparison result.

[0087] Specifically, in this embodiment, a processor is used to compare and analyze the model fitting result of the hydrogeological assessment model with the actual groundwater dynamic change characteristics, geological structure, rock characteristics, rock mass fractures, and karst development conditions of the landfill in the karst area to obtain a comparison result, and at the same time, the comparison result is stored in a memory.

[0088] S52. Perform a comprehensive evaluation and analysis on the groundwater dynamic change characteristics, geological structure, rock characteristics, rock mass fractures, and karst development conditions of the landfill in the karst area according to the comparison result.

[0089] Specifically, in this embodiment, a processor is used to perform a comprehensive evaluation and analysis on the hydrogeological conditions of the landfill in the karst area according to the comparison result.

[0090] Furthermore, in this embodiment, the engineering suitability for constructing a landfill is evaluated based on the comprehensive evaluation and analysis of the hydrogeological conditions of the karst area.

[0091] Please refer to Figure 3, in an optional embodiment, in order to efficiently execute the method for evaluating and analyzing the hydrogeological conditions of a landfill in a karst area provided by the present invention, the present invention provides a system for evaluating and analyzing the hydrogeological conditions of a landfill in a karst area. The system includes an input device, an output device, a processor, and a memory. The hardware facilities are interconnected with each other. Among them, the memory is used to store a computer program, and the computer program includes program instructions. The processor is configured to call the program instructions to execute the specific steps of the relevant embodiments of the method for evaluating and analyzing the hydrogeological conditions of a landfill in a karst area provided by the present invention. The system for evaluating and analyzing the hydrogeological conditions of a landfill in a karst area provided by the present invention has a complete structure, is objective and stable, can efficiently execute the method for evaluating and analyzing the hydrogeological conditions of a landfill in a karst area described in the present invention, and improves the overall applicability and practical application ability of the present invention.

[0092] In summary, the method and system for evaluating and analyzing the hydrogeological conditions of a landfill in a karst area provided by the present invention construct an exploration data set of the system to ensure the comprehensiveness of the data, construct an evaluation model based on hydrogeological parameters to fit and reflect the hydrogeological conditions, and comprehensively use a variety of modern technical means to achieve precise detection and analysis of the groundwater system in the karst area, providing a reliable hydrogeological basis for the site selection, design, construction, and operation of the landfill, effectively avoiding geological disasters, and ensuring the long-term stable operation of the landfill. The method of the present invention is easy to understand, simple to calculate, has a small workload, is convenient for engineering application, and provides a theoretical basis and technical support for the further development of the hydrogeological analysis field.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

Claims

1. A method for evaluating and analyzing hydrogeological conditions of landfills in karst areas, characterized in that: The steps include: Constructing an exploration dataset of landfills in karst areas; Analyzing the hydrogeological characteristics of the karst area landfill based on the exploration data set to obtain the hydrogeological parameters of the karst area landfill; Constructing a hydrogeological assessment model for the landfill in the karst area based on the hydrogeological parameters; Performing fitting analysis on the hydrogeological conditions of the landfill in the karst area according to the hydrogeological assessment model to obtain a model fitting result; Comprehensively evaluate and analyze the hydrogeological conditions of the landfill in the karst area through the model fitting results; The construction of the exploration data set of the landfill in the karst area includes: Obtaining groundwater level, water volume, water quality, flow direction, flow velocity and chemical characteristics by exploring hydrological information of the landfill in the karst area; Exploring the geological information of the landfill in the karst area to obtain the geological structure, rock characteristics, rock fractures and karst development; Monitoring meteorological information of the landfill in the karst region to obtain rainfall, evaporation and temperature; constructing an exploration data set of the landfill in the karst area based on the hydrological information, geological information and meteorological information; The hydrogeological characteristics of the karst area landfill are analyzed based on the exploration data set to obtain the hydrogeological parameters of the karst area landfill, including: Using the exploration data set to calculate and obtain the rock layer water permeability of the landfill in the karst area; Obtaining a permeability coefficient of the karst area landfill based on processing the exploration data set; Calculating the hydraulic conductivity and pressure conductivity of the landfill in the karst area according to the permeability coefficient; The water supply degree, water release coefficient and elastic water release coefficient of the landfill in the karst area are obtained through experiments; Analyzing the exploration data set to obtain the rock stratum porosity of the landfill in the karst area; The method of using the exploration data set to calculate and obtain the rock layer water permeability of the landfill in the karst area includes: in, is the water permeability of the rock formation in the test section, is the stable flow rate of the test section rock formation, is the length of the test section rock formation, is the pressure of the rock formation in the test section; The step of obtaining the permeability coefficient of the karst area landfill based on processing the exploration data set comprises: in, is the permeability coefficient, is the water inflow, is the natural thickness of the aquifer, is the thickness of the aquifer when pumping water, is the pumping influence radius, is the radius of the pumping well, is the average thickness of the aquifer during pumping, is the filter length; The pumping influence radius includes: in, is the pumping influence radius, To lower the water level in the pumping well, is the natural thickness of the aquifer, is the permeability coefficient; The water conductivity coefficient includes: in, is the hydraulic conductivity, is the permeability coefficient, is the thickness of the aquifer; The pressure transmission coefficient includes: in, is the pressure transmission coefficient, is the permeability coefficient, is the water storage coefficient; The hydrogeological assessment model of the karst area landfill is constructed based on the hydrogeological parameters, including: Standardizing the exploration data set to obtain a characteristic data set of the karst area landfill; A loss function is introduced to construct a hydrogeological assessment model of the landfill in the karst area based on the characteristic data set; The introducing loss function constructs the hydrogeological assessment model of the karst area landfill based on the characteristic data set, including: in, is the loss function, is the mean square error value, is the predicted value of groundwater level, is the actual value of the groundwater level, is the mean absolute error, is the predicted value of groundwater flow velocity, is the actual value of groundwater velocity, is the loss term related to the permeability of the rock formation, is the permeability coefficient, , and is the weight coefficient.

2. The method for evaluating and analyzing hydrogeological conditions of landfills in karst areas according to claim 1, characterized in that: The fitting analysis of the hydrogeological conditions of the landfill in the karst area according to the hydrogeological assessment model to obtain the model fitting result includes: Based on the hydrogeological assessment model, a fitting analysis is performed on the groundwater dynamic change characteristics, geological structure, rock characteristics, rock fissures and karst development of the landfill in the karst area to obtain a model fitting result.

3. The method for evaluating and analyzing hydrogeological conditions of landfills in karst areas according to claim 2, characterized in that: The comprehensive evaluation and analysis of the hydrogeological conditions of the landfill in the karst area by using the model fitting results includes: Comparative analysis is performed on the model fitting results and the actual hydrogeological conditions of the landfill in the karst area to obtain comparative results; Based on the comparison results, a comprehensive evaluation and analysis is conducted on the dynamic change characteristics of groundwater, geological structure, rock characteristics, rock fissures and karst development of the landfill in the karst area.

4. A system for evaluating and analyzing hydrogeological conditions of landfills in karst areas, characterized in that: The system includes an input device, an output device, a processor and a memory, wherein the input device, the output device, the processor and the memory are interconnected, wherein the memory is used to store a computer program, the computer program includes program instructions, and the processor is configured to call the program instructions to execute the method for evaluating and analyzing the hydrogeological conditions of a landfill in a karst area as described in any one of claims 1 to 3.

Images