Refuse landfill percolate volume calculation method, device and equipment and storage medium

Abstract

The invention relates to the technical field of electronics, and discloses a refuse landfill percolate volume calculation method, device and equipment and a storage medium. According to the method, the target stratum volume is determined on the basis of target water level observation data and a stratum three-dimensional entity model; the target stratum volume is used for representing the stratum volume between the water level of the refuse landfill and the top interface of the bottom anti-seepage structure, and the water level is determined according to the target water level observation data; based on the target stratum volume and the landfill stratum specific yield data, the refuse landfill percolation liquid volume is obtained through calculation. The actual geometric basis is provided for subsequent volume calculation through the stratum three-dimensional entity model, the real water level surface is determined through target water level observation data, and the target stratum volume between the water level surface and the top interface of the bottom anti-seepage structure is accurately calculated in combination with the stratum three-dimensional entity model. And the accuracy of the percolate volume calculation result of the refuse landfill is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronics, in particular to a landfill leachate volume calculation method, device, equipment and storage medium. BACKGROUND

[0002] The volume of leachate in a landfill is not only a core parameter for the design and operation of the landfill, but also a decision basis for environmental safety, compliance management, and cost control. Accurate calculation of the volume of leachate can avoid resource waste and environmental risks, and achieve a balance between economic and ecological benefits. In related technologies, the calculation of the volume of leachate in a landfill relies on two-dimensional drawings such as plans and sections, as well as empirical formulas, which have certain limitations. For example, two-dimensional drawings cannot truly and completely reflect the complex three-dimensional spatial structure of the underground, especially the distribution, pinch-out, and lens of different soil layers in three-dimensional space, while empirical formulas often use formulas based on simple geometric shapes (such as prisms, cones) or regional average parameters. These formulas highly simplify the actual geological and hydrological conditions, ignoring the uniqueness and complexity of the site. The parameters (such as the infiltration coefficient, water retention rate) in the empirical formula are often roughly valued and lack of pertinence. SUMMARY

[0003] Therefore, the present application provides a landfill leachate volume calculation method, device, equipment and storage medium to solve the problem of inaccurate calculation results in related technologies by using empirical formulas to calculate the volume of leachate in a landfill.

[0004] In a first aspect, the present application provides a landfill leachate volume calculation method, which comprises: obtaining a stratum three-dimensional entity model of a landfill, target water level observation data, and landfill stratum specific yield data, wherein the stratum three-dimensional entity model is constructed according to topographic data and underground structure data of the landfill; determining a target stratum volume based on the target water level observation data and the stratum three-dimensional entity model, wherein the target stratum volume is used to represent the stratum volume between the water level surface and the top interface of the bottom impermeable structure of the landfill, and the water level surface is determined according to the target water level observation data; and calculating the volume of leachate in the landfill based on the target stratum volume and the landfill stratum specific yield data.

[0005] The application provides a landfill leachate volume calculation method, which is characterized in that: a target stratum volume is determined based on target water level observation data and a stratum three-dimensional entity model, the target stratum volume is used to represent a stratum volume between a water level surface and a top interface of a bottom anti-seepage structure of a landfill, and the water level surface is determined according to the target water level observation data; and a landfill leachate volume is calculated based on the target stratum volume and a stratum transmissivity data of the landfill. The method provided by the application can accurately define an actual water storage range of the leachate by using the stratum three-dimensional entity model to truly reproduce a three-dimensional geological form between a topographic surface and the top interface of the bottom anti-seepage structure, eliminate a simplification error of a two-dimensional drawing on a spatial structure from the source, provide a geometric basis that is in line with the actual situation for subsequent volume calculation, determine a real water level surface through the target water level observation data, and accurately calculate the target stratum volume, that is, an actual water storage space volume, between the water level surface and the top interface of the bottom anti-seepage structure in combination with the stratum three-dimensional entity model, so that the accuracy of a calculation result of the landfill leachate volume is effectively improved.

[0006] In an alternative embodiment, the stratum three-dimensional entity model is constructed by the following steps: obtaining topographic data of the landfill and underground structure data of the landfill; constructing a topographic three-dimensional model of the landfill based on the topographic data of the landfill, and constructing a structure three-dimensional model of the landfill based on the underground structure data of the landfill; and determining the stratum three-dimensional entity model based on the topographic three-dimensional model and the structure three-dimensional model, the stratum three-dimensional entity model being used to represent a three-dimensional geological unit model composed of buried garbage and natural soil layers and located between a topographic top interface and a top interface of a bottom anti-seepage structure.

[0007] In an alternative embodiment, if the landfill includes multiple structure blocks, the target water level observation data includes target water level observation values corresponding to different structure blocks respectively, and the step of determining the target stratum volume based on the target water level observation data and the stratum three-dimensional entity model includes: constructing a first target water level surface model of a corresponding structure block based on a target water level observation value of the structure block, the first target water level surface model being used to represent a first water level surface of the structure block; calculating a first stratum volume of the structure block based on the first target water level surface model of the structure block and the stratum three-dimensional entity model, the first stratum volume being used to represent a stratum volume of the structure block between the first water level surface and the top interface of the bottom anti-seepage structure; and determining the target stratum volume based on the first stratum volumes of the multiple structure blocks.

[0008] In one optional implementation, if the landfill comprises multiple structural blocks, and the target water level observation data includes target water level observation values ​​corresponding to different structural blocks, the step of determining the target formation volume based on the target water level observation data and the three-dimensional formation solid model includes: acquiring the initial water level surface model and the initial water level observation values ​​for each structural block, wherein the initial water level surface model is constructed based on the initial water level observation values; calculating the second formation volume of the corresponding structural block based on the initial water level surface model and the three-dimensional formation solid model, wherein the second formation volume is used to characterize the corresponding structural block. The formation volume between the initial water level and the top interface of the bottom seepage-proof structure is determined; the first water level difference of the corresponding structural block is determined based on the initial water level observation value and the target water level observation value of each structural block; the third formation volume of the corresponding structural block is determined based on the first water level difference of each structural block and the area of ​​the initial water level surface, the area of ​​which is determined according to the initial water level surface model of the corresponding structural block; the second and third formation volumes of each structural block are summed to obtain the fourth formation volume of the corresponding structural block; the target formation volume is determined based on the fourth formation volumes of multiple structural blocks.

[0009] In one optional implementation, if the landfill does not include structural blocks, the step of determining the target stratum volume based on target water level observation data and a three-dimensional solid model of the strata includes: constructing a second target water level model of the entire landfill based on the target water level observation data; and determining the target stratum volume based on the second target water level model and the three-dimensional solid model of the strata.

[0010] In one optional implementation, if the landfill does not include structural blocks, the step of determining the target stratum volume based on target water level observation data and a three-dimensional solid model of the strata includes: obtaining an initial water level model and initial water level observation values ​​for the entire landfill; determining a fifth stratum volume for the entire landfill based on the initial water level model and the three-dimensional solid model of the strata, wherein the fifth stratum volume characterizes the stratum volume between the initial water level of the entire landfill and the top interface of the bottom impermeable structure; determining a second water level difference based on the initial water level observation values ​​and the target water level observation values ​​for the entire landfill; determining a sixth stratum volume based on the second water level difference and the area of ​​the initial water level surface of the entire landfill; and determining the target stratum volume of the landfill based on the sixth stratum volume and the fifth stratum volume.

[0011] Secondly, the present invention provides a landfill leachate volume calculation device, the device comprising: an acquisition module for acquiring a three-dimensional solid model of the landfill strata, target water level observation data, and landfill stratum water supply data, wherein the three-dimensional solid model of the strata is constructed based on the topographic data and underground structure data of the landfill; a determination module for determining the target stratum volume based on the target water level observation data and the three-dimensional solid model of the strata, wherein the target stratum volume is used to characterize the stratum volume between the water level surface of the landfill and the top interface of the bottom anti-seepage structure, wherein the water level surface is determined based on the target water level observation data; and a calculation module for calculating the landfill leachate volume based on the target stratum volume and the landfill stratum water supply data.

[0012] Thirdly, the present invention provides a computer device, comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the computer instructions to perform the landfill leachate volume calculation method of the first aspect or any corresponding embodiment described above.

[0013] Fourthly, the present invention provides a computer-readable storage medium storing computer instructions for causing a computer to execute the landfill leachate volume calculation method of the first aspect or any corresponding embodiment described above.

[0014] Fifthly, the present invention provides a computer program product, including computer instructions for causing a computer to execute the landfill leachate volume calculation method of the first aspect or any corresponding embodiment described above. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a flowchart illustrating the method for calculating the volume of landfill leachate according to an embodiment of the present invention;

[0017] Figure 2 This is a flowchart illustrating another method for calculating the volume of landfill leachate according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the three-dimensional terrain model in the embodiments of this application;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structural model in the embodiments of this application;

[0020] Figure 5 This is a schematic diagram of a three-dimensional solid model of the landfill strata constructed using the segmentation method in the embodiments of this application;

[0021] Figure 6 This is a schematic diagram of a three-dimensional solid model of the landfill strata constructed using the enclosure method in the embodiments of this application;

[0022] Figure 7 This is a schematic diagram of the observation positions of the pumping hole and the observation hole in the embodiments of this application;

[0023] Figure 8 This is a schematic diagram of the second water level model in the embodiments of this application;

[0024] Figure 9 This is a flowchart illustrating another method for calculating the volume of landfill leachate according to an embodiment of the present invention;

[0025] Figure 10 This is a structural block diagram of a landfill leachate volume calculation device according to an embodiment of the present invention;

[0026] Figure 11 This is a schematic diagram of the hardware structure of a computer device according to an embodiment of the present invention. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, 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.

[0028] In related technologies, the calculation of landfill leachate volume relies on two-dimensional drawings such as plan views and cross-sections, as well as empirical formulas, which have certain limitations. For example, two-dimensional drawings cannot accurately and completely reflect the complex three-dimensional spatial structure underground, especially the distribution, pinch-outs, and lenses of different soil layers in three-dimensional space. Empirical formulas often use formulas based on simple geometric shapes (such as prisms and pyramids) or regional average parameters. These formulas highly simplify actual geological and hydrological conditions, ignoring the uniqueness and complexity of the site. Parameters in empirical formulas (such as infiltration coefficient and water holding capacity) are often crudely valued and lack specificity.

[0029] In view of this, the method for calculating the volume of landfill leachate provided in this application embodiment can be applied to a server to realize the calculation of landfill leachate volume. The method provided in this application embodiment determines the target stratum volume based on target water level observation data and a three-dimensional solid model of the stratum. The target stratum volume is used to characterize the stratum volume between the water level of the landfill and the top interface of the bottom anti-seepage structure. The water level is determined according to the target water level observation data. The landfill leachate volume is calculated based on the target stratum volume and the stratum water yield data of the landfill. The method provided by this invention uses a three-dimensional solid model of the strata to accurately replicate the three-dimensional geological morphology between the top surface and the top interface of the bottom anti-seepage structure, precisely defining the actual water storage range of leachate. This eliminates the simplification error of two-dimensional drawings on the spatial structure from the source, providing a realistic geometric basis for subsequent volume calculations. By determining the actual water level through target water level observation data and combining it with the three-dimensional solid model of the strata, the target stratum volume between the water level and the top interface of the bottom anti-seepage structure is accurately calculated, i.e., the actual water storage space volume, effectively improving the accuracy of the leachate volume calculation results for landfills.

[0030] According to an embodiment of the present invention, a method for calculating the volume of leachate in a landfill is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0031] This embodiment provides a method for calculating the volume of landfill leachate, which can be used in the aforementioned server. Figure 1 This is a flowchart of a landfill leachate volume calculation method according to an embodiment of the present invention, such as... Figure 1 As shown, the process includes the following steps:

[0032] Step S101: Obtain the three-dimensional solid model of the landfill strata, target water level observation data, and landfill stratum water supply data.

[0033] For example, the landfill can be any landfill that requires leachate volume calculation; the three-dimensional solid model of the strata is constructed based on the topographic data and underground structure data of the landfill. The target water level observation data is the water level observation data of the landfill, which is collected by a water level observation device pre-installed in the landfill. The landfill soil stratum water yield data is determined by conducting pumping tests on the landfill. Different soil layers in the landfill correspond to different water yields. In this embodiment, the water yield refers to the ratio of the volume of water that can be freely discharged from the landfill soil stratum under gravity in a saturated state to the total volume of the landfill soil stratum, which is used to characterize the release capacity of water in the landfill soil stratum.

[0034] Step S102: Determine the target stratum volume based on the target water level observation data and the three-dimensional solid model of the stratum. The target stratum volume is used to characterize the stratum volume between the water level of the landfill and the top interface of the bottom anti-seepage structure. The water level is determined based on the target water level observation data.

[0035] For example, the top interface of the seepage barrier structure refers to the uppermost structural surface of the seepage barrier system at the bottom of the landfill, which is used to prevent leachate from seeping downwards and protect groundwater resources. It is one of the key boundaries that leachate cannot penetrate. In this embodiment, the position of the target water level is determined based on the target water level observation data. Based on the position of the target water level and the position of the top interface of the bottom seepage barrier structure in the three-dimensional solid model of the stratum, the stratum volume between the water level of the landfill and the top interface of the bottom seepage barrier structure is determined. Further, when the water level model has a portion above the terrain model in the vertical direction, the terrain model and the water level model should be enclosed, and the portion above the terrain model and below the water level model should be treated as a separate leachate.

[0036] Step S103: Calculate the leachate volume of the landfill based on the target stratum volume and the water yield data of the landfill site.

[0037] For example, the landfill leachate volume is calculated based on the landfill site stratum water yield data and the target stratum volume. This application embodiment does not limit the specific calculation process, as long as it is reasonable. In this embodiment, the landfill leachate volume is obtained by multiplying the subsurface stratum volume by the overall generalized water yield and then adding the leachate above the topographic model.

[0038] The landfill leachate volume calculation method provided in this embodiment determines the target stratum volume based on target water level observation data and a three-dimensional solid model of the strata. The target stratum volume characterizes the stratum volume between the landfill water level and the top interface of the bottom impermeable structure. The water level is determined based on the target water level observation data. The landfill leachate volume is calculated based on the target stratum volume and the landfill stratum water yield data. This method, through a three-dimensional solid model of the strata, accurately replicates the three-dimensional geological morphology between the topographic surface and the top interface of the bottom impermeable structure, precisely defining the actual water storage range of the leachate. This eliminates the simplification errors of two-dimensional drawings on the spatial structure, providing a realistic geometric basis for subsequent volume calculations. By determining the actual water level through target water level observation data and combining it with the three-dimensional solid model of the strata, the target stratum volume between the water level and the top interface of the bottom impermeable structure, i.e., the actual water storage space volume, is accurately calculated, effectively improving the accuracy of the landfill leachate volume calculation results.

[0039] This embodiment provides a method for calculating the volume of landfill leachate, which can be used in the aforementioned server. Figure 2 This is a flowchart of a landfill leachate volume calculation method according to an embodiment of the present invention, such as... Figure 2 As shown, the process includes the following steps:

[0040] Step S201 involves acquiring a 3D solid model of the landfill's strata, target water level observation data, and landfill stratum water yield data. The 3D solid model is constructed based on the landfill's topographic and underground structural data. For details, please refer to [link to relevant documentation]. Figure 1 Step S101 of the illustrated embodiment will not be described again here.

[0041] In some alternative implementations, the three-dimensional solid model of the formation is constructed through the following steps:

[0042] Step a1: Obtain topographic data and underground structure data of the landfill.

[0043] For example, in this embodiment of the application, the landfill topographic data includes raster elevation data, vector topographic data, point cloud data, etc.; the landfill structural data includes anti-seepage system data, drainage system data, cover system data, construction reports, as-built drawings, etc., with a focus on extracting three-dimensional data such as foundation, diversion layer, and anti-seepage layer.

[0044] Step a2: Construct a 3D topographic model of the landfill based on the landfill's topographic data, and construct a 3D structural model of the landfill based on the landfill's underground structure data.

[0045] For example, in this embodiment of the application, the three-dimensional terrain model refers to a Digital Elevation Model (DEM), a model created based on the topographic data of the landfill cover. It can be represented using grids such as TIN and Grid. A schematic diagram of the three-dimensional terrain model is shown below. Figure 3 As shown. A structural 3D model refers to a 3D structural model created based on underground structural data. It can be represented using grids such as TIN and GRID. A schematic diagram of a structural 3D model is shown below. Figure 4 As shown. According to the data, the landfill slope ratio is 1:3, and the impermeable layer thickness is approximately 1m. The model is represented using TIN format. The scope of the structural model and the terrain model should be consistent.

[0046] Step a3: Based on the three-dimensional terrain model and the three-dimensional structural model, determine the three-dimensional solid model of the strata. The three-dimensional solid model of the strata is used to represent the three-dimensional geological unit model composed of landfill waste and natural soil layers located between the top interface of the terrain and the top interface of the bottom seepage prevention structure.

[0047] For example, in this embodiment, the 3D solid model of the stratum refers to the landfill stratum below the topographic surface and above the structural surface. It can be created based on a topographic model and a structural model, using methods such as segmentation or enclosure. When using the segmentation method, a spatial column is first created. The column's range should not exceed the range of the topographic model, but its vertical range should extend beyond both the topographic and structural models. Then, the column is segmented using both the topographic and structural models. After segmentation, the portion below the topographic surface and above the structural model constitutes the 3D solid model of the stratum. Alternatively, a surface stretching method can be used to stretch the topographic model downwards beyond the structural model to form a solid. Then, the structural model is used to segment this solid, and the portion above the structural model constitutes the 3D solid model of the stratum. When using the enclosure method, the topographic and structural models are used to enclose the stratum, and the enclosed 3D solid is the 3D solid model of the stratum. The 3D solid model of the stratum can be represented using grids such as TIN and GRID. A schematic diagram of the 3D solid model of the landfill stratum constructed using the segmentation method is shown below. Figure 5 As shown, a schematic diagram of the three-dimensional solid model of the landfill strata constructed using the enclosure method is as follows. Figure 6 As shown. In this embodiment of the application, the enclosure method is used to obtain a three-dimensional solid volume of the stratum of 3860253.669 m³. 3 .

[0048] Step S202: Determine the target stratum volume based on the target water level observation data and the three-dimensional solid model of the stratum. The target stratum volume is used to characterize the stratum volume between the water level of the landfill and the top interface of the bottom anti-seepage structure. The water level is determined based on the target water level observation data.

[0049] Specifically, if the landfill comprises multiple structural blocks, step S202 above includes:

[0050] Step S2021: Construct a first target water level surface model for each structural block based on the target water level observation values ​​of each structural block. The first target water level surface model is used to characterize the first water level surface of the corresponding structural block.

[0051] For example, in the embodiments of this application, each structural block contains not only pumping holes and observation holes, but also pumping holes and observation holes that should be on a single observation line perpendicular to the groundwater flow direction, and there should be no fewer than three observation holes. Pumping holes can also be used as observation holes after the pumping test is completed.

[0052] Observation wells should meet the requirements for long observation wells, with a water level pipe diameter of 50 to 70 mm and a burial depth controlled 3 to 5 m below the groundwater level. The section of the water level pipe above the filter section should be sealed with bentonite balls to the wellhead, and the pipe opening should be covered for protection. If the landfill has vertical structural blocks, observation lines should be arranged for each block, with one pumping well and no fewer than three observation wells on each observation line. Pumping tests should be conducted, meeting the required frequency of water level observations, and the test should be terminated once a stable standard is reached.

[0053] The specific yield of a landfill layer can be calculated using the dewatering funnel method. The formula for calculating the specific yield is as follows: Q is the pumping well flow rate (m³ / s). 3 / d), t is the time (d) after pumping starts, and V is the volume of the settling funnel (m³). 3 ).

[0054] When calculating leachate volume using a block-based approach, the 3D model of the landfill site is vertically divided into blocks. Vertical segmentation can be achieved through trimming. Then, based on the target water level observations for each block, a first water level surface is constructed for that structural block. The target water level observations for each block should be water level elevations, and the first water level surface is a horizontal water level surface model created based on the water level elevations; its range should be consistent with the horizontal range of the block.

[0055] Water level models can be modeled using methods such as discrete smooth interpolation, Kriging interpolation, and radial basis function interpolation. They can be represented using meshes such as TIN, GRID, or NURBS.

[0056] Taking radial basis functions as an example, suppose we have water level data {x} i ,y i ,z i ,h i Construct the following RBF model:

[0057]

[0058] Here, φ(r) is a basis function, which can be a Gaussian function, an inverse quadratic function, etc., and α is obtained by solving the linear system. i(Weight coefficients) and a0, a1, a2, a3 can be used to interpolate water levels at any point.

[0059] The extent of the water level model should be constrained by the boundary of the terrain model so that the boundary of the water level model is consistent with the boundary of the terrain model.

[0060] Step S2022: Based on the first target water level model and the three-dimensional solid model of the strata of each structural block, the first stratum volume of the corresponding structural block is calculated. The first stratum volume is used to characterize the stratum volume of the corresponding structural block between the first water level and the top interface of the bottom seepage prevention structure.

[0061] For example, in this embodiment of the application, a first water level surface is used to segment the three-dimensional solid model of the block strata, and the volume of the first stratum is determined based on the segmented model. The volume of the first stratum can be used to characterize the volume of different soil layers in the corresponding structural block.

[0062] Step S2023: Determine the target formation volume based on the first formation volume of multiple structural blocks.

[0063] For example, in the embodiments of this application, the target stratum volume can be used to characterize the volume corresponding to different soil layers in the underground structure of a landfill site.

[0064] Specifically, if the landfill does not include structural blocks, step S202 above includes:

[0065] Step b1: Construct a second target water level model of the entire landfill based on the target water level observation data.

[0066] For example, when the landfill does not include structural blocks, a second water level model of the entire landfill is constructed based on the target water level observation data. The second water level model should not exceed the landfill topography model.

[0067] In this embodiment, the observation positions of the pumping hole and the observation hole are shown in the schematic diagram below. Figure 7 As shown, no vertical structural blocks were found in the landfill when arranging the pumping and observation wells; therefore, a grid pattern was adopted. A total of 42 observation wells were arranged in a grid pattern, with depths ranging from 9 to 13 meters. Wells G3, G6, G11, G14, G19, and G22 were used as pumping wells for the pumping tests. Observation wells GCK3-1, GCK3-2, GCK3-3, GCK6-1, GCK6-2, and GCK6-3 were used as observation wells for pumping tests of wells G3 and G6, respectively, and the observation line formed by the pumping wells and observation wells was perpendicular to the seepage direction within the site.

[0068] Step b2: Determine the target formation volume based on the second target water level model and the three-dimensional solid model of the formation.

[0069] For example, in this embodiment of the application, the volume of the formation below the second target water level surface model in the three-dimensional solid model of the formation is taken as the target formation volume. Specifically, based on the water level observations in the borehole, a second water level surface model is created using radial basis functions. The second water level surface model can be as follows: Figure 8 As shown, the subsurface volume of the formation was obtained based on the stratigraphic model and the water level model. Water level observations were conducted at 42 wells, and a water level model was created based on the observed elevation values. The water level model was then used to shear the three-dimensional solid model of the formation, yielding a subsurface volume of 3,213,904.028 m³. 3 .

[0070] When calculating leachate volume by considering the landfill as a whole, all statistical values ​​such as the average or standard value of the water supply are calculated, and a certain value is selected as the generalized water supply for the entire site. The selection of the generalized water supply statistical value for the entire site should be based on actual needs. Since no segmented information of the landfill has been collected, the leachate volume is calculated by considering the landfill as a whole, all statistical values ​​such as the average or standard value of the water supply are calculated, and a certain value is selected as the generalized water supply for the entire site; in this embodiment, the average value of 0.1089 can be selected as the generalized water supply for the entire site for subsequent leachate volume calculations.

[0071] Step S203: Calculate the landfill leachate volume based on the target formation volume and the landfill site's specific gravity. For details, please refer to [link to relevant documentation]. Figure 1 Step S103 of the illustrated embodiment will not be described again here.

[0072] This embodiment provides a method for calculating the volume of landfill leachate, which can be used in the aforementioned server. Figure 9 This is a flowchart of a landfill leachate volume calculation method according to an embodiment of the present invention, such as... Figure 9 As shown, the process includes the following steps:

[0073] Step S901 involves acquiring a 3D solid model of the landfill's strata, target water level observation data, and landfill stratum water yield data. The 3D solid model is constructed based on the landfill's topographic and underground structural data. For details, please refer to [link to relevant documentation]. Figure 2 Step S201 of the illustrated embodiment will not be described again here.

[0074] Step S902: Determine the target stratum volume based on the target water level observation data and the three-dimensional solid model of the stratum. The target stratum volume is used to characterize the stratum volume between the water level of the landfill and the top interface of the bottom anti-seepage structure. The water level is determined based on the target water level observation data.

[0075] Specifically, if the landfill comprises multiple structural blocks, step S302 above includes:

[0076] Step S9021: Obtain the initial water level surface model and initial water level observation values ​​for each structural block. The initial water level surface model is constructed based on the initial water level observation values. For example, the initial water level surface model can be modeled using methods such as discrete smooth interpolation surface generation, Kriging interpolation, or radial basis function interpolation. It can be represented using surfaces such as TIN, GRID, or NURBS.

[0077] Step S9022: Calculate the second formation volume of the corresponding structural block based on the initial water level model and the three-dimensional solid model of the formation. The second formation volume is used to characterize the formation volume of the corresponding structural block between the initial water level and the top interface of the bottom seepage prevention structure.

[0078] For example, first, an initial water level model for each block is created, and then the second formation volume below the initial water level of each block is obtained based on the initial water level model and the formation entity model.

[0079] Step S9023: Determine the first water level difference value of the corresponding structural block based on the initial water level observation value and the target water level observation value of each structural block.

[0080] For example, the water level observation value of each structural block is subtracted from the initial water level observation value to obtain the first water level difference value of the corresponding structural block.

[0081] Step S9024: Determine the third stratum volume of the corresponding structural block based on the first water level difference of each structural block and the initial water level surface area. The initial water level surface area is determined according to the initial water level surface model of the corresponding structural block.

[0082] For example, the third stratum volume of each structural block is obtained by multiplying the first water level difference of each structural block by the initial water level area.

[0083] Step S9025: Summing the second and third stratigraphic volumes of each structural block to obtain the fourth stratigraphic volume of the corresponding structural block.

[0084] For example, the second and third stratigraphic volumes of each structural block are added together to obtain the fourth stratigraphic volume of the corresponding structural block.

[0085] Step S9026: Determine the target formation volume based on the fourth formation volume of multiple structural blocks.

[0086] For example, in the embodiments of this application, the sum of the fourth formation volumes of multiple structural blocks can be used as the target formation volume.

[0087] Specifically, if the landfill does not include structural blocks, step S902 above includes:

[0088] Step c1: Obtain the initial water level model and initial water level observations of the entire landfill.

[0089] Step c2: Determine the fifth stratum volume of the overall landfill based on the initial water level model and the three-dimensional solid model of the strata. The fifth stratum volume is used to characterize the stratum volume between the initial water level of the overall landfill and the top interface of the bottom impermeable structure.

[0090] For example, an initial water level model of the entire landfill is created based on all initial water level values, and the volume of the strata below the initial water level is obtained based on the initial water level model and the stratum model.

[0091] Step c3: Determine the second water level difference based on the initial water level observation value and the target water level observation value of the entire landfill.

[0092] For example, the target water level observation value is subtracted from the initial water level value, and the average value is calculated to obtain the second water level difference value.

[0093] Step c4: Determine the volume of the sixth stratum based on the second water level difference and the initial water level area of ​​the entire landfill.

[0094] For example, the volume of the formation below the water level is obtained by multiplying the average value by the area of ​​the initial water level surface and then adding the volume of the formation below the initial water level surface.

[0095] Step c5: Determine the target formation volume of the landfill based on the sixth formation volume and the fifth formation volume.

[0096] For example, the target stratum volume of the landfill is obtained by adding the volume of the sixth stratum and the volume of the fifth stratum.

[0097] Specifically, based on all initial water level values, a radial basis function was used to create an initial water level model for the entire landfill. Based on the initial water level model and the stratigraphic model, the surface area of ​​the initial water level model was obtained as 180756.510 m². 2 The initial water table subsurface volume is 3,096,386.346 m³. 3 .

[0098] Then, the initial water level value was subtracted from all the well water level values, and the average value was calculated. This average value was then multiplied by the area of ​​the initial water level surface, and the resulting value was added to the volume of the formation below the initial water level surface to obtain the volume of the formation below the water level surface. Subtracting the initial water level values ​​from all the well water level observations in May from the water level observations on a certain day in June, the average value was calculated to be 0.78m, indicating that the overall water level in the wells within the site had risen. Multiplying this average value by the area of ​​the initial water level surface and adding it to the volume of the formation below the initial water level surface yielded a value of 3,237,376.424 m³.

[0099] The volume of the formation below the water level is multiplied by the generalized specific yield, and then the leachate above the topographic model is added. Since the water level model in this project is lower than the topographic model in the vertical direction, the volume of leachate above the topographic model is 0. The leachate volume calculated by directly creating the water level model is 349994.1486 m³. When using the method of first creating an initial water level model, the calculated leachate volume is 352550.2926 m³, slightly higher by 0.73%, but the error is within an acceptable range.

[0100] Step S903: Calculate the landfill leachate volume based on the target formation volume and the landfill site's specific gravity. For details, please refer to [link to relevant documentation]. Figure 2 Step S203 of the illustrated embodiment will not be described again here.

[0101] This embodiment also provides a landfill leachate volume calculation device, which is used to implement the above embodiments and preferred embodiments; details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that performs a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0102] This embodiment provides a device for calculating the volume of leachate from a landfill, such as... Figure 10 As shown, it includes:

[0103] The acquisition module 1001 is used to acquire the three-dimensional solid model of the landfill, the target water level observation data, and the landfill site water supply data. The three-dimensional solid model of the landfill is constructed based on the topographic data and underground structure data of the landfill.

[0104] The determination module 1002 is used to determine the target stratum volume based on the target water level observation data and the three-dimensional solid model of the stratum. The target stratum volume is used to characterize the stratum volume between the water level of the landfill and the top interface of the bottom anti-seepage structure. The water level is determined based on the target water level observation data.

[0105] The calculation module 1003 is used to calculate the volume of leachate in the landfill based on the target stratum volume and the water yield data of the landfill site.

[0106] In some alternative implementations, the three-dimensional solid model of the formation is constructed through the following steps:

[0107] Obtain topographic data and underground structure data of the landfill;

[0108] A three-dimensional topographic model of the landfill is constructed based on the topographic data of the landfill, and a three-dimensional structural model of the landfill is constructed based on the underground structural data of the landfill.

[0109] Based on the 3D terrain model and the 3D structural model, a 3D solid model of the strata is determined. The 3D solid model of the strata is used to represent a three-dimensional geological unit model composed of landfill waste and natural soil layers located between the top interface of the terrain and the top interface of the bottom seepage prevention structure.

[0110] In some alternative implementations, if the landfill comprises multiple structural blocks, the determining module includes:

[0111] The first construction submodule is used to construct the first target water level surface model of the corresponding structural block based on the target water level observation values ​​of each structural block. The first target water level surface model is used to characterize the first water level surface of the corresponding structural block.

[0112] The first calculation submodule is used to calculate the first formation volume of the corresponding structural block based on the first target water level model and the three-dimensional solid model of the formation. The first formation volume is used to characterize the formation volume of the corresponding structural block between the first water level and the top interface of the bottom seepage prevention structure.

[0113] The first determination submodule is used to determine the target formation volume based on the first formation volume of multiple structural blocks.

[0114] In one alternative implementation, if the landfill comprises multiple structural blocks, the determining module includes:

[0115] The first acquisition submodule is used to acquire the initial water level model and the initial water level observation value of each structural block. The initial water level model is constructed based on the initial water level observation value.

[0116] The second calculation submodule is used to calculate the second formation volume of the corresponding structural block based on the initial water level model and the three-dimensional solid model of the formation. The second formation volume is used to characterize the formation volume of the corresponding structural block between the initial water level and the top interface of the bottom seepage prevention structure.

[0117] The second determining submodule is used to determine the first water level difference value of the corresponding structural block based on the initial water level observation value and the target water level observation value of each structural block;

[0118] The third determination submodule is used to determine the third stratum volume of the corresponding structural block based on the first water level difference of each structural block and the initial water level surface area. The initial water level surface area is determined according to the initial water level surface model of the corresponding structural block.

[0119] The summation submodule is used to sum the second and third stratigraphic volumes of each structural block to obtain the fourth stratigraphic volume of the corresponding structural block.

[0120] The fourth determination submodule is used to determine the target formation volume based on the fourth formation volume of multiple structural blocks.

[0121] In one alternative implementation, if the landfill does not include structural blocks, the determining module includes:

[0122] The second construction submodule is used to construct a second target water level model of the entire landfill based on the target water level observation data.

[0123] The fifth determination submodule is used to determine the target formation volume based on the second target water level model and the three-dimensional solid model of the formation.

[0124] In one alternative implementation, if the landfill does not include structural blocks, the determining module includes:

[0125] The second acquisition submodule is used to acquire the initial water level model and initial water level observation values ​​of the entire landfill.

[0126] The sixth determination submodule is used to determine the fifth stratum volume of the overall landfill based on the initial water level model and the three-dimensional solid model of the strata. The fifth stratum volume is used to characterize the stratum volume between the initial water level of the overall landfill and the top interface of the bottom anti-seepage structure.

[0127] The seventh determination submodule is used to determine the second water level difference based on the initial water level observation value and the target water level observation value of the entire landfill.

[0128] The eighth determination submodule is used to determine the volume of the sixth formation based on the second water level difference and the initial water level area of ​​the entire landfill.

[0129] The ninth determination submodule is used to determine the target formation volume of the landfill based on the sixth and fifth formation volumes.

[0130] Further functional descriptions of the above modules and units are the same as those in the corresponding embodiments described above, and will not be repeated here.

[0131] In this embodiment, the landfill leachate volume calculation device is presented in the form of a functional unit. Here, a unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that execute one or more software or fixed programs, and / or other devices that can provide the above functions.

[0132] This invention also provides a computer device having the above-described features. Figure 10 The device shown is for calculating the volume of leachate from a landfill.

[0133] Please see Figure 11 , Figure 11 This is a schematic diagram of the structure of a computer device provided in an optional embodiment of the present invention, such as... Figure 11 As shown, the computer device includes one or more processors 10, memory 20, and interfaces for connecting the components, including high-speed interfaces and low-speed interfaces. The components communicate with each other via different buses and can be mounted on a common motherboard or otherwise installed as needed. The processors can process instructions executed within the computer device, including instructions stored in or on memory to display graphical information of a GUI on external input / output devices (such as display devices coupled to the interfaces). In some alternative implementations, multiple processors and / or multiple buses can be used with multiple memories, if desired. Similarly, multiple computer devices can be connected, each providing some of the necessary operations (e.g., as a server array, a group of blade servers, or a multiprocessor system). Figure 11 Take a processor 10 as an example.

[0134] Processor 10 may be a central processing unit, a network processor, or a combination thereof. Processor 10 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The programmable logic device may be a complex programmable logic device (CAMP), a field-programmable gate array (FPGA), a general-purpose array logic (GDA), or any combination thereof.

[0135] The memory 20 stores instructions executable by at least one processor 10 to cause the at least one processor 10 to perform the method shown in the above embodiments.

[0136] The memory 20 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the computer device. Furthermore, the memory 20 may include high-speed random access memory and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some alternative embodiments, the memory 20 may optionally include memory remotely located relative to the processor 10, and these remote memories may be connected to the computer device via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0137] The memory 20 may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as flash memory, hard disk or solid-state drive; the memory 20 may also include a combination of the above types of memory.

[0138] The computer device also includes a communication interface 30 for communicating with other devices or communication networks.

[0139] This invention also provides a computer-readable storage medium. The methods described above according to embodiments of the invention can be implemented in hardware or firmware, or implemented as computer code that can be recorded on a storage medium, or implemented as computer code downloaded via a network and originally stored on a remote storage medium or a non-transitory machine-readable storage medium and then stored on a local storage medium. Thus, the methods described herein can be processed by software stored on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. The storage medium can be a magnetic disk, optical disk, read-only memory, random access memory, flash memory, hard disk, or solid-state drive, etc.; further, the storage medium can also include combinations of the above types of memory. It is understood that computers, processors, microprocessor controllers, or programmable hardware include storage components capable of storing or receiving software or computer code, which, when accessed and executed by the computer, processor, or hardware, implements the methods shown in the above embodiments.

[0140] A portion of this invention can be applied as a computer program product, such as computer program instructions, which, when executed by a computer, can invoke or provide the methods and / or technical solutions according to the invention through the operation of the computer. Those skilled in the art will understand that the forms in which computer program instructions exist in a computer-readable medium include, but are not limited to, source files, executable files, installation package files, etc. Correspondingly, the ways in which computer program instructions are executed by a computer include, but are not limited to: the computer directly executing the instructions, or the computer compiling the instructions and then executing the corresponding compiled program, or the computer reading and executing the instructions, or the computer reading and installing the instructions and then executing the corresponding installed program. Here, the computer-readable medium can be any available computer-readable storage medium or communication medium accessible to a computer.

[0141] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A method for calculating the volume of leachate from a landfill, characterized in that, The method includes: The three-dimensional solid model of the landfill strata, target water level observation data, and landfill stratum water yield data are obtained. The three-dimensional solid model of the strata is constructed based on the topographic data and underground structure data of the landfill. The target stratum volume is determined based on the target water level observation data and the stratum three-dimensional solid model. The target stratum volume is used to characterize the stratum volume between the water level of the landfill and the top interface of the bottom anti-seepage structure. The water level is determined based on the target water level observation data. The volume of leachate in the landfill is calculated based on the target stratum volume and the water yield data of the landfill site.

2. The method according to claim 1, characterized in that, The three-dimensional solid model of the strata was constructed through the following steps: Obtain topographic data and underground structure data of the landfill; A three-dimensional topographic model of the landfill is constructed based on the topographic data of the landfill, and a three-dimensional structural model of the landfill is constructed based on the underground structural data of the landfill. The three-dimensional solid model of the strata is determined based on the three-dimensional topographic model and the three-dimensional structural model. The three-dimensional solid model of the strata is used to represent a three-dimensional geological unit model composed of landfill waste and natural soil layers located between the top interface of the top top of the top top of the top top of the bottom seepage prevention structure.

3. The method according to claim 1 or 2, characterized in that, If the landfill comprises multiple structural blocks, and the target water level observation data includes target water level observation values ​​corresponding to different structural blocks, the step of determining the target stratum volume based on the target water level observation data and the three-dimensional solid model of the stratum includes: Based on the target water level observation values ​​of each structural block, a first target water level surface model of the corresponding structural block is constructed. The first target water level surface model is used to characterize the first water level surface of the corresponding structural block. The first formation volume of the corresponding structural block is calculated based on the first target water level model of each structural block and the three-dimensional solid model of the formation. The first formation volume is used to characterize the formation volume of the corresponding structural block between the first water level and the top interface of the bottom seepage prevention structure. The target formation volume is determined based on the first formation volume of multiple structural blocks.

4. The method according to claim 1 or 2, characterized in that, If the landfill comprises multiple structural blocks, and the target water level observation data includes target water level observation values ​​corresponding to different structural blocks, the step of determining the target stratum volume based on the target water level observation data and the three-dimensional solid model of the stratum includes: Obtain the initial water level model and initial water level observation values ​​for each structural block. The initial water level model is constructed based on the initial water level observation values. The second formation volume of the corresponding structural block is calculated based on the initial water level model and the three-dimensional solid model of the formation. The second formation volume is used to characterize the formation volume of the corresponding structural block between the initial water level and the top interface of the bottom seepage-proof structure. The first water level difference value of the corresponding structural block is determined based on the initial water level observation value and the target water level observation value of each structural block; The third stratum volume of the corresponding structural block is determined based on the first water level difference and the initial water level surface area of ​​each structural block. The initial water level surface area is determined according to the initial water level surface model of the corresponding structural block. The second and third stratigraphic volumes of each structural block are summed to obtain the fourth stratigraphic volume of the corresponding structural block. The target formation volume is determined based on the fourth formation volume of multiple structural blocks.

5. The method according to claim 1 or 2, characterized in that, If the landfill does not include structural blocks, the step of determining the target stratum volume based on the target water level observation data and the stratum three-dimensional solid model includes: A second target water level model of the entire landfill is constructed based on target water level observation data; The target formation volume is determined based on the second target water level model and the three-dimensional solid model of the formation.

6. The method according to claim 1 or 2, characterized in that, If the landfill does not include structural blocks, the step of determining the target stratum volume based on the target water level observation data and the stratum three-dimensional solid model includes: Obtain the initial water level model and initial water level observations for the entire landfill; The fifth stratum volume of the overall landfill is determined based on the initial water level model of the overall landfill and the three-dimensional solid model of the strata. The fifth stratum volume is used to characterize the stratum volume between the initial water level of the overall landfill and the top interface of the bottom impermeable structure. The second water level difference is determined based on the initial water level observations and the target water level observations of the entire landfill. The volume of the sixth stratum was determined based on the second water level difference and the initial water level area of ​​the entire landfill. The target formation volume of the landfill is determined based on the sixth formation volume and the fifth formation volume.

7. A device for calculating the volume of leachate from a landfill, characterized in that, The device includes: The acquisition module is used to acquire the three-dimensional solid model of the landfill strata, target water level observation data, and landfill stratum water supply data. The three-dimensional solid model of the strata is constructed based on the topographic data and underground structure data of the landfill. The determination module is used to determine the target stratum volume based on the target water level observation data and the stratum three-dimensional solid model. The target stratum volume is used to characterize the stratum volume between the water level of the landfill and the top interface of the bottom anti-seepage structure. The water level is determined based on the target water level observation data. The calculation module is used to calculate the volume of leachate in the landfill based on the target stratum volume and the water yield data of the landfill site.

8. A computer device, characterized in that, include: The system includes a memory and a processor, which are interconnected. The memory stores computer instructions, and the processor executes the computer instructions to perform the landfill leachate volume calculation method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing the computer to execute the landfill leachate volume calculation method according to any one of claims 1 to 6.

10. A computer program product, characterized in that, Includes computer instructions for causing a computer to execute the landfill leachate volume calculation method according to any one of claims 1 to 6.

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