A pumped storage reservoir leakage parameterization survey arrangement method based on library type classification

Abstract

The application provides a pumping storage reservoir leakage parameterization investigation arrangement method based on library type classification, comprising the following steps: dividing the pumping storage power station reservoir into multiple reservoir types according to the reservoir position and the topographic and geomorphic features of the reservoir area; setting the key parts of the reservoir leakage investigation; using a reservoir leakage investigation drilling scheme parameterization algorithm according to the reservoir type, the topographic features and the key parts of the reservoir leakage investigation of each reservoir type, and outputting a parameterized reservoir leakage investigation drilling workload scheme; training and identifying the reservoir type classification, and constructing a reservoir type data source; and arranging the reservoir leakage parameterization investigation based on the reservoir type. The application combines the pumping storage reservoir type classification and the leakage parameterization investigation by intelligently identifying and parameterizing the arrangement rules, improves the efficiency of the investigation arrangement, greatly reduces the manual field climbing selection, and improves the efficiency and accuracy of the reservoir leakage investigation arrangement work.

Description

Technical Field

[0001] The invention belongs to the technical field of investigation and arrangement of leakage problems in pumped storage power station reservoirs, and particularly relates to a parameterized investigation and arrangement method for leakage of pumped storage reservoirs based on reservoir type classification. Background Art

[0002] Engineering survey is an important step in the early stages of identifying the engineering geological conditions in the construction area of ​​a pumped storage power station and analyzing and evaluating engineering geological problems. Reservoir leakage is the main content of the engineering survey.

[0003] The site selection of pumped-storage power stations is relatively flexible, and there are many types of reservoirs. In the existing technology, when arranging reservoir leakage surveys for different types of reservoirs, the on-site layout of survey drilling mostly relies on manual field climbing in mountainous areas. It is difficult to reasonably optimize the drilling hole position, which is not only time-consuming and labor-intensive, but also poses a safety hazard.

[0004] Therefore, how to achieve scientific, standardized and efficient survey layout has become a technical problem that needs to be solved urgently. Summary of the Invention

[0005] In view of the defects of the existing technology, the present invention provides a parametric survey and layout method for pumped storage reservoir leakage based on reservoir type classification, which can effectively solve the above problems.

[0006] The technical solution adopted in the present invention is as follows:

[0007] The present invention provides a pumped storage reservoir leakage parameterization survey and arrangement method based on reservoir type classification, comprising the following steps:

[0008] Step S1, classifying the pumped storage power station reservoir into multiple reservoir types based on the reservoir location and the topographical features of the reservoir area;

[0009] Step S2, setting the key areas for reservoir leakage investigation for each reservoir type;

[0010] Step S3: Based on the reservoir type, topographic features and key locations of reservoir leakage investigation, a parameterized reservoir leakage investigation drilling plan algorithm is used to output a parameterized reservoir leakage investigation drilling workload plan.

[0011] Step S4: training and identifying library type classification, and building library type data source:

[0012] Based on 3D images, orthophotos, oblique images, and satellite images, various reservoir types of pumped storage power stations are marked and the data source of reservoir type is trained;

[0013] Step S5: arranging a parameterized reservoir leakage survey based on the reservoir type:

[0014] Based on the reservoir image data, the reservoir type is intelligently identified using the reservoir type data source, and the reservoir dam axis, reservoir boundary line, normal water level elevation value, and terrain lines extracted based on the reservoir image data are combined with the key parts of the reservoir leakage investigation in step S2, and the method of step S3 is used to parameterize the arrangement of reservoir leakage investigation boreholes.

[0015] Preferably, the reservoir types include river valley type reservoir, gully type reservoir, bank type reservoir, gully source type reservoir and mountain top platform type reservoir;

[0016] The river valley reservoir mentioned above refers to the reservoir formed by damming the main river in the project area;

[0017] The gully-type reservoir refers to a reservoir formed by building a dam in a river tributary, and the reservoir backwater line does not reach the source of the gully;

[0018] The bank-type reservoir refers to a reservoir that is formed by excavation and filling combined with a dam on a terrace or concave plot on the river bank, and does not encroach on the riverbed;

[0019] The gully source reservoir refers to a reservoir formed by building a dam at the source of a gully;

[0020] The mountaintop terrace type reservoir refers to a reservoir formed by excavation and filling combined with a surrounding dam on the relatively flat terrace at the top of the mountain in the project area.

[0021] Preferably, the key areas for reservoir leakage investigation of each reservoir type refer to the key areas for reservoir leakage investigation of each reservoir type set according to the topographic and geomorphic characteristics, engineering geology and hydrogeological conditions, and reservoir type characteristics of the pumped-storage power station reservoir area.

[0022] Preferably, the key areas for reservoir leakage investigation of each reservoir type specifically include:

[0023] For valley-type reservoirs, the key areas for reservoir leakage investigation are the reservoir section in front of the dam, river bends and river areas;

[0024] For the bank-type reservoir and the mountaintop terrace-type reservoir, the key areas for reservoir leakage investigation are the reservoir bottom and the reservoir perimeter;

[0025] For the valley-type reservoir and the gully-source-type reservoir, the key areas for reservoir leakage investigation are the reservoir section in front of the dam, the thin watershed and the low pass.

[0026] Preferably, step S3 is specifically as follows:

[0027] Step S31, parameterizing the survey area boundary:

[0028] The survey area boundary is generated based on the reservoir dam axis, reservoir boundary line, and normal water level elevation value, reservoir terrain characteristics, and reservoir perimeter distance conditions. The reservoir perimeter distance condition refers to the dam axis as a fixed boundary, combined with the user-selected reservoir boundary line or normal water level elevation line, to independently set the outward expansion distance. The reservoir terrain characteristics refer to the terrain slope, slope aspect, and terrain curvature within the reservoir perimeter distance condition area that meets the reservoir perimeter distance condition.

[0029] Step S32: parameterize the drilling area of ​​key parts of reservoir leakage investigation:

[0030] According to the key parts of reservoir leakage investigation for each reservoir type in step S2, combined with the topographical characteristics of the investigation area, a parameterized drilling area for key parts of reservoir leakage investigation is set;

[0031] Step S33: Parameterized drilling arrangement:

[0032] The overlapping area of ​​the survey area set in step S31 and the drilling area of ​​the key parts of the reservoir leakage survey set in step S32 is used as the boundary of the drilling layout area; within the boundary of the drilling layout area, parameterized drilling spacing, drilling hole position, and drilling depth are performed to intelligently set the drilling workload.

[0033] Preferably, step S32 specifically includes:

[0034] Step S32-1, generating a drilling area for key reservoir leakage survey locations based on the reservoir type and the key reservoir leakage survey locations of each reservoir type in step S2, including:

[0035] For the reservoir section in front of the dam, the river valley area with a self-set distance condition upstream of the reservoir dam axis, combined with the reservoir perimeter or normal water level elevation line, shall be used as the drilling area for the reservoir section in front of the dam;

[0036] For river bend plots, based on the curvature of the river valley terrain, the curvature radius is less than 5 times the width of the river channel at normal water level, and the river bend terrain slope is less than 25° and the terrain is relatively gentle, which is set as the drilling area of ​​the river bend plot;

[0037] For riverbed plots, based on the terrain data between adjacent river channels, the area between two river channels with a terrain slope of less than 25° is set as the drilling area for the riverbed plots;

[0038] For the reservoir bottom, the area within the survey area between the reservoir dam axis and the reservoir perimeter is used as the reservoir bottom drilling area;

[0039] For the perimeter of the reservoir, the perimeter area of ​​the reservoir is used as the drilling area;

[0040] For thin watersheds, based on the reservoir terrain features of the survey area in step S31, the ridge width, ridge crest, and pass values ​​at the normal water level elevation or the reservoir perimeter elevation are identified. If the reservoir perimeter ridge width is lower than the self-set width value, it is considered a thin watershed. The ridge crest and pass are used as the thin watershed drilling area.

[0041] For low-lying pass areas, the area with gentle pass terrain on the ridgeline of the reservoir surrounding the reservoir that is not a thin watershed and that meets the reservoir surrounding distance condition in the survey area in step S31 is used as the drilling area for the low-lying pass areas;

[0042] Step S32-2: Based on the drilling area of ​​the key part of the reservoir leakage investigation generated in step S32-1, a spatial geometric analysis algorithm is used to generate the boundary of the drilling area of ​​the key part of the reservoir leakage investigation.

[0043] Preferably, step S33 specifically includes:

[0044] Step S33-1, parameterizing the drilling spacing:

[0045] Within the boundaries of the drilling arrangement area, the drilling spacing is independently set and parameterized;

[0046] Step S33-2, parameterize the initial drilling hole positions:

[0047] Optimizing and selecting preliminary drilling hole locations based on the drilling arrangement area boundary and the drilling hole spacing includes:

[0048] (1) For the reservoir section in front of the dam and the reservoir bottom containing the dam axis, that is, the area containing the dam axis factor, the center point of the dam axis is taken as the starting point, and a layout line perpendicular to the dam axis is generated through vector operation. Subsequently, according to the drilling spacing conditions and the boundary conditions of the drilling layout area, the layout lines parallel to the dam axis and the layout lines perpendicular to the dam axis are gradually parameterized and generated; grid intersections are generated for each horizontal and vertical layout line, and each grid intersection is a preliminary drilling hole position; and preliminary drilling hole positions are also generated on the dam axis section according to the drilling spacing conditions and the boundary conditions of the drilling layout area;

[0049] (2) For river bends and inter-river plots, and reservoir bottom locations without dam axis, that is, areas without dam axis factors, the center point of the area is determined by spatial geometry algorithm, and positive grid lines are generated according to the borehole spacing and the boundary conditions of the drilling layout area. The intersection of each grid line is the preliminary drilling hole location;

[0050] (3) For the reservoir periphery, i.e., the multi-segment line around the bank-type and mountaintop terrace-type reservoirs, the starting point of the multi-segment line is used as the drilling start point, and the preliminary drilling hole positions are generated according to the drilling hole spacing;

[0051] (4) For thin watersheds and low passes, the initial drilling holes are arranged at the peaks and ridge passes;

[0052] At the same time, according to the independently set parametric arrangement order of the preliminary drilling hole positions and the hole position repeated arrangement spacing conditions, the preliminary drilling hole positions are filtered to obtain filtered preliminary drilling hole positions;

[0053] Step S33-3, optimizing the initial drilling hole positions:

[0054] For the preliminary drilling hole locations, adaptive weight optimization is performed by combining the preliminary drilling hole location optimization boundary distance threshold and the terrain slope to screen out the optimized drilling hole locations that are closest to the preliminary drilling hole locations, have the most suitable terrain slope, and are convenient for drilling arrangement, and identify the elevation values ​​of the optimized drilling hole locations;

[0055] Step S33-4, parameterize the drilling depth value:

[0056] The drilling depth distance condition can be set independently. The drilling depth distance condition includes the relative distance value below the top boundary of the aquiclude and the relative distance value below the groundwater level. The distance condition options can be selected and the drilling depth distance value can be set independently for each option. If the drilling depth distance condition factors are not met, the drilling depth value can be set independently.

[0057] Step S33-5, parameterizing drilling attribute information:

[0058] According to the parameterized drill hole position, drill hole position elevation value and drill hole depth value, the drill hole number, drill hole elevation and drill hole depth attribute information are parameterized; the drill hole number is determined according to the parameterized drill hole arrangement sequence, and the sequence of hole position intersections is the default sequence of terrain polyline nodes. The reservoir bottom, river bend and inter-river space default to north first then south, west first then east, left first then right. The dam front section defaults to the dam axis first and then the upstream dam front area.

[0059] Preferably, in step S33-3, the adaptive weight optimization is:

[0060] F(x,y)=w1·D(x,y)+w2·S(x,y)

[0061]

[0062] in:

[0063] F(x,y) is the objective function, D(x,y) is the normalized distance score between the candidate point and the initial hole position, S(x,y) is the normalized slope score of the candidate point, w1 and w2 are weight coefficients, which can be set independently or set as dynamic weight coefficients to satisfy w1+w2=1;

[0064] (x0, y0) is the initial hole coordinate, and d is the initial hole optimization boundary distance threshold;

[0065] (x, y) is the coordinate of the candidate point; Slope(x, y) is the terrain slope value of the candidate point. min Slope is the minimum terrain slope value within the boundary distance threshold. max The maximum terrain slope value within the boundary distance threshold.

[0066] Preferably, when the reservoir leakage investigation boreholes are arranged parametrically, the borehole elevation and borehole depth attributes are displayed parameterized, and the borehole arrangement can be adjusted independently.

[0067] The present invention provides a pumped storage reservoir leakage parameterization survey layout method based on reservoir type classification, which has the following advantages:

[0068] (1) The reservoir type classification extracted by the present invention is based on the classification of reservoirs based on conditions such as terrain, rivers, and valleys. This classification method can improve the accuracy of subsequent reservoir leakage parameterization survey arrangements;

[0069] (2) The present invention focuses on leakage survey elements that are important during the survey and design of pumped-storage power stations. Through intelligent identification and parameterized layout rules, it combines the classification of pumped-storage reservoir types with parameterized leakage surveys, thereby improving the efficiency of survey and layout. It can greatly reduce manual field climbing and site selection, and improve the efficiency and accuracy of reservoir leakage survey and layout work.

[0070] (3) With regard to the arrangement of drilling holes, the present invention introduces a multi-objective optimization algorithm based on multiple factors such as terrain slope, curvature, and drilling hole spacing to ensure the rationality and accuracy of the drilling hole arrangement, and to facilitate the solution of the drilling hole positioning problem in steep terrain. The present invention not only improves the efficiency of drilling hole positioning, but also optimizes the number and location of drilling holes, effectively reducing the survey cost and improving the survey quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] Figure 1 A flow chart of a pumped storage reservoir leakage parameterization survey and arrangement method based on reservoir type classification provided by the present invention;

[0072] Figure 2 This is a schematic diagram of a pumped storage reservoir in this embodiment;

[0073] Figure 3 This is a schematic diagram of the image layout of a pumped storage reservoir in this embodiment (including borehole attributes);

[0074] Figure 4 This is a schematic diagram of the topographic layout of a pumped storage reservoir in this embodiment (including borehole attributes);

[0075] Figure 5 This is a schematic diagram of a pumped storage reservoir in this embodiment;

[0076] Figure 6 This is a schematic diagram of the image layout of a pumped storage reservoir in this embodiment (including borehole attributes);

[0077] Figure 7 This is a schematic diagram of the terrain layout of a pumped storage reservoir in this embodiment (including borehole attributes). DETAILED DESCRIPTION

[0078] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0079] The present invention provides a parameterized survey and arrangement method for pumped storage reservoir leakage based on reservoir type classification. The method can carry out targeted survey and arrangement according to reservoir type, improve the accuracy and reliability of survey results, and reduce survey costs and time costs.

[0080] See Figure 1 The present invention provides a method for parameterized leakage survey and arrangement of pumped storage reservoirs based on reservoir type classification, comprising the following steps:

[0081] Step S1, classifying the pumped storage power station reservoir into multiple reservoir types based on the reservoir location and the topographical features of the reservoir area;

[0082] Specifically, the reservoir types include river valley type reservoirs, gully type reservoirs, bank type reservoirs, gully source type reservoirs and mountain top platform type reservoirs;

[0083] The river valley reservoir mentioned above refers to the reservoir formed by damming the main river in the project area;

[0084] The gully-type reservoir refers to a reservoir formed by building a dam in a river tributary, and the reservoir backwater line does not reach the source of the gully;

[0085] The bank-type reservoir refers to a reservoir that is formed by excavation and filling combined with a dam on a terrace or concave plot on the river bank, and does not encroach on the riverbed;

[0086] The gully source reservoir refers to a reservoir formed by building a dam at the source of a gully;

[0087] The mountaintop terrace type reservoir refers to a reservoir formed by excavation and filling combined with a surrounding dam on the relatively flat terrace at the top of the mountain in the project area.

[0088] Step S2, setting the key areas for reservoir leakage investigation for each reservoir type;

[0089] The key areas for reservoir leakage investigation of each reservoir type mentioned above refer to the key areas for reservoir leakage investigation of each reservoir type set according to the topographic and geomorphic characteristics, engineering geological and hydrogeological conditions, and reservoir type characteristics of the pumped-storage power station reservoir area.

[0090] The key areas for reservoir leakage investigation for each reservoir type include:

[0091] For valley-type reservoirs, the key areas for reservoir leakage investigation are the reservoir section in front of the dam, river bends and river areas;

[0092] For the bank-type reservoir and the mountaintop terrace-type reservoir, the key areas for reservoir leakage investigation are the reservoir bottom and the reservoir perimeter;

[0093] For the valley-type reservoir and the gully-source-type reservoir, the key areas for reservoir leakage investigation are the reservoir section in front of the dam, the thin watershed and the low pass.

[0094] Step S3: Based on the reservoir type, topographic features and key locations of reservoir leakage investigation, a parameterized reservoir leakage investigation drilling plan algorithm is used to output a parameterized reservoir leakage investigation drilling workload plan.

[0095] Step S3 is specifically as follows:

[0096] Step S31, parameterizing the survey area boundary:

[0097] The survey area boundary is generated based on the reservoir dam axis, reservoir boundary line, and normal water level elevation value, reservoir terrain characteristics, and reservoir perimeter distance conditions. The reservoir perimeter distance condition refers to the dam axis as a fixed boundary, combined with the user-selected reservoir boundary line or normal water level elevation line, to independently set the outward expansion distance. The reservoir terrain characteristics refer to the terrain slope, slope aspect, and terrain curvature within the reservoir perimeter distance condition area that meets the reservoir perimeter distance condition.

[0098] Step S32: parameterize the drilling area of ​​key parts of reservoir leakage investigation:

[0099] According to the key parts of reservoir leakage investigation for each reservoir type in step S2, combined with the topographical characteristics of the investigation area, a parameterized drilling area for key parts of reservoir leakage investigation is set;

[0100] Step S32 specifically includes:

[0101] Step S32-1, generating a drilling area for key reservoir leakage survey locations based on the reservoir type and the key reservoir leakage survey locations of each reservoir type in step S2, including:

[0102] For the reservoir section in front of the dam, the river valley area with a self-set distance condition upstream of the reservoir dam axis, combined with the reservoir perimeter or normal water level elevation line, shall be used as the drilling area for the reservoir section in front of the dam;

[0103] For river bend plots, based on the curvature of the river valley terrain, the curvature radius is less than 5 times the width of the river channel at normal water level, and the river bend terrain slope is less than 25° and the terrain is relatively gentle, which is set as the drilling area of ​​the river bend plot;

[0104] For riverbed plots, based on the terrain data between adjacent river channels, the area between two river channels with a terrain slope of less than 25° is set as the drilling area for the riverbed plots;

[0105] For the reservoir bottom, the area within the survey area between the reservoir dam axis and the reservoir perimeter is used as the reservoir bottom drilling area;

[0106] For the perimeter of the reservoir, the perimeter area of ​​the reservoir is used as the drilling area;

[0107] For thin watersheds, based on the reservoir terrain features of the survey area in step S31, the ridge width, ridge crest, and pass values ​​at the normal water level elevation or the reservoir perimeter elevation are identified. If the reservoir perimeter ridge width is lower than the self-set width value, it is considered a thin watershed. The ridge crest and pass are used as the thin watershed drilling area.

[0108] For low-lying pass areas, the area with gentle pass terrain on the ridgeline of the reservoir surrounding the reservoir that is not a thin watershed and that meets the reservoir surrounding distance condition in the survey area in step S31 is used as the drilling area for the low-lying pass areas;

[0109] Step S32-2: Based on the drilling area of ​​the key part of the reservoir leakage investigation generated in step S32-1, a spatial geometric analysis algorithm is used to generate the boundary of the drilling area of ​​the key part of the reservoir leakage investigation.

[0110] Step S33: Parameterized drilling arrangement:

[0111] The overlapping area of ​​the survey area set in step S31 and the drilling area of ​​the key parts of the reservoir leakage survey set in step S32 is used as the boundary of the drilling layout area; within the boundary of the drilling layout area, parameterized drilling spacing, drilling hole position, and drilling depth are performed to intelligently set the drilling workload.

[0112] Step S33 specifically includes:

[0113] Step S33-1, parameterizing the drilling spacing:

[0114] Within the boundaries of the drilling arrangement area, the drilling spacing is independently set and parameterized;

[0115] Step S33-2, parameterize the initial drilling hole positions:

[0116] Optimizing and selecting preliminary drilling hole locations based on the drilling arrangement area boundary and the drilling hole spacing includes:

[0117] (1) For the reservoir section in front of the dam and the reservoir bottom containing the dam axis, that is, the area containing the dam axis factor, the center point of the dam axis is taken as the starting point, and a layout line perpendicular to the dam axis is generated through vector operation. Subsequently, according to the drilling spacing conditions and the boundary conditions of the drilling layout area, the layout lines parallel to the dam axis and the layout lines perpendicular to the dam axis are gradually parameterized and generated; grid intersections are generated for each horizontal and vertical layout line, and each grid intersection is a preliminary drilling hole position; and preliminary drilling hole positions are also generated on the dam axis section according to the drilling spacing conditions and the boundary conditions of the drilling layout area;

[0118] (2) For river bends and inter-river plots, and reservoir bottom locations without dam axis, that is, areas without dam axis factors, the center point of the area is determined by spatial geometry algorithm, and positive grid lines are generated according to the borehole spacing and the boundary conditions of the drilling layout area. The intersection of each grid line is the preliminary drilling hole location;

[0119] (3) For the reservoir periphery, i.e., the multi-segment line around the bank-type and mountaintop terrace-type reservoirs, the starting point of the multi-segment line is used as the drilling start point, and the preliminary drilling hole positions are generated according to the drilling hole spacing;

[0120] (4) For thin watersheds and low passes, the initial drilling holes are arranged at the peaks and ridge passes;

[0121] At the same time, according to the independently set parametric arrangement order of the preliminary drilling hole positions and the hole position repeated arrangement spacing conditions, the preliminary drilling hole positions are filtered to obtain filtered preliminary drilling hole positions;

[0122] Step S33-3, optimizing the initial drilling hole positions:

[0123] For the preliminary drilling hole locations, adaptive weight optimization is performed by combining the preliminary drilling hole location optimization boundary distance threshold and the terrain slope to screen out the optimized drilling hole locations that are closest to the preliminary drilling hole locations, have the most suitable terrain slope, and are convenient for drilling arrangement, and identify the elevation values ​​of the optimized drilling hole locations;

[0124] The adaptive weight optimization is:

[0125] F(x,y)=w1·D(x,y)+w2·S(x,y)

[0126]

[0127] in:

[0128] F(x,y) is the objective function, D(x,y) is the normalized distance score between the candidate point and the initial hole position, S(x,y) is the normalized slope score of the candidate point, w1 and w2 are weight coefficients, which can be set independently or set as dynamic weight coefficients to satisfy w1+w2=1;

[0129] (x0, y0) is the initial hole coordinate, and d is the initial hole optimization boundary distance threshold;

[0130] (x, y) is the coordinate of the candidate point; Slope(x, y) is the terrain slope value of the candidate point. min Slope is the minimum terrain slope value within the boundary distance threshold. max The maximum terrain slope value within the boundary distance threshold.

[0131] Step S33-4, parameterize the drilling depth value:

[0132] The drilling depth distance condition can be set independently. The drilling depth distance condition includes the relative distance value below the top boundary of the aquiclude and the relative distance value below the groundwater level. The distance condition options can be selected and the drilling depth distance value can be set independently for each option. If the drilling depth distance condition factors are not met, the drilling depth value can be set independently.

[0133] Step S33-5, parameterizing drilling attribute information:

[0134] According to the parameterized drill hole position, drill hole position elevation value and drill hole depth value, the drill hole number, drill hole elevation and drill hole depth attribute information are parameterized; the drill hole number is determined according to the parameterized drill hole arrangement sequence, and the sequence of hole position intersections is the default sequence of terrain polyline nodes. The reservoir bottom, river bend and inter-river space default to north first then south, west first then east, left first then right. The dam front section defaults to the dam axis first and then the upstream dam front area.

[0135] Step S4: training and identifying library type classification, and building library type data source:

[0136] Based on 3D images, orthophotos, oblique images, and satellite images, various reservoir types of pumped storage power stations are marked and the data source of reservoir type is trained;

[0137] Step S5: arranging a parameterized reservoir leakage survey based on the reservoir type:

[0138] Based on the reservoir image data, the reservoir type is intelligently identified using the reservoir type data source. The reservoir dam axis, reservoir boundary line, normal water level elevation, and topographic lines extracted from the reservoir image data are combined with the key areas of reservoir leakage investigation in step S2 to parametrically arrange reservoir leakage investigation boreholes using the method of step S3. During the parametric arrangement of the reservoir leakage investigation boreholes, the borehole elevation and borehole depth attributes are parametrically displayed, and the borehole arrangement can be independently adjusted.

[0139] Examples are listed below:

[0140] Example 1:

[0141] S1. Detailed classification of pumped storage power station reservoir types, that is, detailed classification of planned reservoir types based on the location of the reservoir and the topographical features of the reservoir area.

[0142] In the present invention, reservoir types are divided into five categories, including river valley type reservoirs, gully type reservoirs, bank type reservoirs, gully source type reservoirs and mountain top flat type reservoirs.

[0143] A valley-type reservoir refers to a reservoir formed by damming the main river in the project area.

[0144] A valley-type reservoir refers to a reservoir formed by building a dam in a river tributary, and the reservoir backwater line does not reach the source of the ditch.

[0145] A bank-type reservoir refers to a reservoir that is formed by excavation and filling combined with a dam on a terrace or concave plot on the river bank, and does not encroach on the riverbed.

[0146] A gully source reservoir refers to a reservoir formed by building a dam in the gully source area.

[0147] A mountaintop terrace type reservoir refers to a reservoir formed by excavation and filling combined with a surrounding dam on the relatively flat terrace at the top of the mountain in the project area.

[0148] S2. Sort out and set the key points of reservoir leakage investigation for each reservoir type classification, that is, according to the topographic and geomorphological characteristics, engineering geology and hydrogeological conditions of the pumped storage power station reservoir area, set the key points of reservoir leakage investigation for each reservoir type, which will be used for the subsequent parametric intelligent layout of the investigation plan.

[0149] Step S2 sets the leakage investigation focus for each reservoir type, including: the focus of river valley type reservoirs is the reservoir section in front of the dam, river bends and river blocks; the focus of bank type and mountaintop platform type reservoirs is the reservoir bottom and the reservoir area; the focus of gully type and gully source type reservoirs is the reservoir section in front of the dam, thin watersheds, low passes and other parts.

[0150] S3. Parameterize the reservoir leakage survey plan. This involves parameterizing the reservoir leakage survey drilling workload plan based on the topographic characteristics and leakage survey priorities of each reservoir type. The topographic characteristics in step S3 refer to the slope, aspect, and curvature of the terrain within the reservoir perimeter distance condition area. The reservoir perimeter distance condition refers to a fixed boundary, with the dam axis as the boundary, and a user-selected reservoir perimeter line or normal water level elevation line. The default setting is 500m.

[0151] Step S3 includes the following steps:

[0152] S31. Parameterize the survey area boundary, that is, generate the survey area boundary according to the reservoir dam axis, reservoir boundary line, normal water level elevation value, reservoir terrain characteristics and reservoir perimeter distance conditions.

[0153] S32, parameterizing the key points of leakage investigation, that is, setting the parameterized drilling areas of key investigation areas based on the key points of leakage investigation of each reservoir type in step S2 and the topographical characteristics of the investigation area. The steps are as follows:

[0154] S32-1. Generate leakage investigation key areas based on the reservoir type and the leakage investigation focus in step S2, and set the following parameterized investigation focus.

[0155] (1) The drilling area in the reservoir section in front of the dam is the river valley area with a self-set distance condition upstream of the reservoir dam axis, which is based on the reservoir perimeter or the normal water level elevation line. The default distance condition is 100 to 500 m, and the D8 algorithm is used to identify the upstream of the reservoir.

[0156] (2) The drilling area for river bends is based on the curvature of the river valley terrain. The curvature radius is generally less than 5 times the width of the river channel at normal water level. It is set in the area with a gentle terrain with a slope of less than 25°;

[0157] (3) The drilling area for riverbed plots is set in the area between two river channels with a gentle terrain slope of less than 25° based on the terrain data between adjacent river channels.

[0158] (4) The reservoir bottom drilling area is the internal range of the reservoir dam axis and the reservoir perimeter survey area; the reservoir perimeter drilling area is the reservoir perimeter area.

[0159] (5) Thin watershed is to identify the ridge width, ridge peak, and pass value of the normal water level elevation or the reservoir elevation based on the terrain elevation value, terrain slope, and curvature of the survey area in step S31. The ridge width around the reservoir is lower than the self-set width value, which is a thin watershed. The survey area is the ridge peak and pass area, and the self-set width value defaults to 200m.

[0160] (6) The low pass drilling area is the area with gentle pass terrain on the ridge line of the non-thin watershed around the reservoir with the distance condition set independently in the survey area in step S31, where the default distance condition is that the center point of the pass is within 500m from the normal line around the reservoir.

[0161] S32-2. Generate area boundary lines based on the survey area generated in S32-1 using a spatial geometric analysis algorithm; and the user can independently define the boundaries of the drilling survey area for subsequent drilling arrangement.

[0162] S33, parameterized drilling arrangement, that is, based on the terrain area and the boundary of the key exploration drilling area set in steps S31 and S32 above, the overlapping area boundary, the overlapping part and the drilling arrangement area boundary, parameterize the drilling spacing, drilling hole position, and drilling depth conditions, and intelligently set the drilling workload. It includes the following steps:

[0163] S33-1. Parameterized borehole spacing is a parameter for setting autonomous spacing conditions within the above-mentioned drilling area. The default setting is 100m in the pre-feasibility study stage and 50m in the feasibility study stage. Users can also set the value independently.

[0164] S33-2. Parameterize the initial borehole location, which is to optimize the borehole opening location by combining the drilling area boundary and borehole spacing factors. Based on the above S32 survey key areas and reservoir type factors, the following parameterization method is set:

[0165] (1) For the reservoir section in front of the dam and the reservoir bottom containing the dam axis, that is, the area containing the dam axis factor, the center point of the dam axis is taken as the starting point, and the layout line perpendicular to the dam axis is generated through vector operation. Subsequently, according to the drilling spacing conditions and regional boundary conditions, the layout lines parallel to the dam axis and the vertical layout lines are gradually parameterized and generated to generate grid intersection points. Each point is the preliminary drilling hole position; and the preliminary drilling hole position is also generated on the dam axis section according to the drilling spacing conditions and regional boundary conditions.

[0166] (2) In river bends and inter-river plots, and reservoir bottom locations without dam axis, that is, areas without dam axis factors, the center point of the area is determined by spatial geometry algorithm, and positive grid lines and intersection points are generated according to the borehole spacing conditions and regional boundary conditions. Each point is the preliminary borehole location.

[0167] (3) The perimeter of the reservoir, i.e., the multi-segment line around the shore-type and mountaintop terrace-type reservoirs. The starting point of the multi-segment line is used as the drilling start point, and the preliminary drilling positions are generated according to the drilling spacing conditions.

[0168] (4) In areas with thin watersheds and low passes, as mentioned above, the drilling holes are basically arranged at the peaks and ridge passes.

[0169] At the same time, users can independently set the parametric arrangement order of the preliminary drilling positions and the repeated arrangement spacing conditions of the holes, which default to 50m. That is, when the drilling positions are arranged in sequence later, if there are holes arranged in the previous sequence within 50m, the intersection hole position will be automatically cancelled.

[0170] S33-3, optimize the drilling hole position, that is, based on the preliminary drilling hole position determined in S33-2, adopt adaptive weight optimization combined with the initial hole position optimization boundary distance threshold and terrain slope to screen out the optimized hole position that is closest to the initial drilling hole position, has the most suitable terrain slope, and is convenient for drilling arrangement, and identify the hole position elevation value.

[0171] Among them: The adaptive weight optimization algorithm is as follows:

[0172] F(x,y)=w1·D(x,y)+w2·S(x,y)

[0173]

[0174] Where F(x,y) is the objective function, D(x,y) is the normalized distance score between the candidate point and the initial hole position, S(x,y) is the normalized slope score of the candidate point, (x0, y0) is the coordinate of the initial hole position, d is the optimized boundary distance threshold of the initial hole position, which is generally set to 5-10m. (x,y) is the coordinate of the candidate point.

[0175] Wherein, w1 and w2 are weight coefficients, which can be set by the user or as dynamic weight coefficients to satisfy w1+w2=1.

[0176] In the formula, Slope(x,y) is the terrain slope value of the candidate point, Slope min Slope is the minimum terrain slope value within the boundary distance threshold. max The maximum terrain slope value within the boundary distance threshold.

[0177] Furthermore, since there are often steep and unstable terrain factors within the pumped storage site selection range, the whale WOA algorithm and particle swarm PSO algorithm can be used to further improve the selection efficiency.

[0178] S33-4. Parameterized borehole depth refers to the borehole depth value that is automatically set for depth distance conditions. Depth distance conditions include the distance value below the top of the aquiclude and the distance value below the groundwater level. You can select and filter distance condition options and set the distance value for each option. The default distance condition for the distance to the aquiclude is 15m, and the default distance condition for the groundwater level is 20m. If the depth distance condition is not met, the depth value can be set automatically; the default is 50m.

[0179] S33-5. Parameterized borehole attribute information, i.e., parameterized borehole number, elevation, and depth attribute information based on the user's parameterized borehole position, elevation value, and depth value. The borehole number is determined according to the above-mentioned parameterized borehole arrangement sequence, and the sequence of the hole intersections is the default sequence of the terrain polyline nodes. The default sequence for the reservoir bottom, river bend, and inter-river void is north first, then south, west first, then east, and left first, then right. The default sequence for the dam front section is the dam axis first, then the upstream dam front area.

[0180] S4. Train and identify reservoir type classifications and construct a reservoir type data source. This involves labeling various pumped-storage reservoir types based on 3D images, orthophotos, oblique images, and satellite images. This data source is then trained using the YOLOv5 or YOLOv8 algorithm.

[0181] As we all know, reservoir image data is limited. This training recognition uses geometric transformation methods such as rotation, flipping, scaling, and cropping on the image data, color transformation methods such as adjusting brightness, contrast, and saturation, and image data enhancement such as Gaussian blur processing; as well as pre-training transfer learning methods, to effectively achieve high-precision classification of reservoir types.

[0182] In this embodiment, based on satellite images, orthophotos, oblique images, photographic images and other data, geometric transformation methods such as image rotation, flipping, scaling, and cropping are adopted, and color transformation methods such as brightness, contrast, and saturation are adjusted. The image data is trained based on the YOLOv5 algorithm to generate a database.

[0183] S5. Perform parametric survey and arrangement of reservoir leakage based on reservoir type classification. That is, based on the user's reservoir image data, intelligently identify the data source to obtain the reservoir classification, and use the reservoir dam axis, reservoir boundary line, normal water level elevation value, and terrain lines extracted from the user's image to parametrically arrange leakage survey boreholes according to the above steps.

[0184] Through the following examples, combined with the attached Figures 2-4 The technical solution of the present invention is described in detail.

[0185] During the feasibility study phase of a pumped storage power station, based on the upper reservoir perimeter and the Figure 2 The three-dimensional satellite image of the Aowei software shown intelligently identifies the upper reservoir as a ditch source reservoir, and then sorts out the key points of the leakage investigation of the upper reservoir as the reservoir section in front of the dam, thin watershed, low pass and other parts.

[0186] Based on satellite images, the terrain elevation line, reservoir perimeter, dam axis, and normal water level line were proposed to carry out parameterized reservoir leakage investigation plan. The setting sequence was as follows: the first step was the reservoir section in front of the dam, and the distance condition was set to 100m from the dam axis; the second step was the low pass around the reservoir, and the default distance condition was that the center point of the pass was within 500m from the normal line of the reservoir; the third step was the thin watershed, and the area with a ridge width of 100m at the normal water level elevation was screened out. Figure 3 The two thin watershed areas of Kuzhou Ridge A and B are shown.

[0187] Then, because leakage survey was conducted in the pre-feasibility study stage of the project, leakage problems were identified in the feasibility study stage. The borehole spacing was set to 100m, the borehole depth was set to 100m, and the borehole numbering sequence was based on the survey plan sequence mentioned above. After parameterizing the preliminary borehole positions, the adaptive weight optimization of the Whale WOA algorithm was performed with the optimized boundary distance threshold set to 50m. 21 leakage survey boreholes were arranged on the terrain line, with a total drilling workload of 2100m. The borehole elevation and depth attributes were parameterized and displayed. See the attached figure. Figures 3-4 , so that subsequent users can adjust the drilling layout independently.

[0188] Through the following examples, combined with the attached Figures 5-7 The technical solution of the present invention is described in detail.

[0189] In this embodiment, during the pre-feasibility study phase of a pumped storage power station, Figure 5 The lower reservoir perimeter and Aowei software 3D satellite image shown are flat, so they are identified as a shore-type reservoir or a mountaintop terrace-type reservoir. The user independently selects it as a shore-type reservoir, and then sorts out the focus of the lower reservoir leakage investigation as the reservoir bottom and the surrounding area.

[0190] Based on satellite images, terrain elevation lines and reservoir perimeters are proposed to conduct parameterized reservoir leakage survey schemes. The setting sequence is as follows: the first step is the reservoir perimeter, and the second step is the reservoir bottom area. Figure 6 .

[0191] Then, because the project is in the pre-feasibility study stage and the leakage problem needs to be preliminarily identified, the drilling spacing around the reservoir is set to 150m, the drilling spacing inside the reservoir is set to 200m, and the drilling depth is set to 50m. The drilling number sequence refers to the above-mentioned survey plan sequence and the sequence of polyline nodes around the reservoir. After parameterizing the preliminary hole positions, the Whale WOA algorithm is used to optimize the hole positions with an optimized boundary distance threshold of 50m. Multiple hole positions are optimized, and 31 leakage exploration holes are arranged on the terrain line, with a total drilling workload of 1550m. The hole elevation and depth attributes are displayed parameterized, such as Figure 6-Figure 7 , so that subsequent users can adjust the drilling layout independently.

[0192] The beneficial effects of the present invention are:

[0193] (1) The reservoir type classification extracted by the present invention is based on the classification of reservoirs based on conditions such as terrain, rivers, and valleys. This classification method can improve the accuracy of subsequent reservoir leakage parameterization survey arrangements;

[0194] (2) The present invention focuses on leakage survey elements that are important during the survey and design of pumped-storage power stations. Through intelligent identification and parameterized layout rules, it combines the classification of pumped-storage reservoir types with parameterized leakage surveys, thereby improving the efficiency of survey and layout. It can greatly reduce manual field climbing and site selection, and improve the efficiency and accuracy of reservoir leakage survey and layout work.

[0195] (3) With regard to the arrangement of drilling holes, the present invention introduces a multi-objective optimization algorithm based on multiple factors such as terrain slope, curvature, and drilling hole spacing to ensure the rationality and accuracy of the drilling hole arrangement, and to facilitate the solution of the drilling hole positioning problem in steep terrain. The present invention not only improves the efficiency of drilling hole positioning, but also optimizes the number and location of drilling holes, effectively reducing the survey cost and improving the survey quality.

[0196] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A parametric survey and arrangement method for pumped storage reservoir leakage based on reservoir type classification, characterized in that: The following steps are involved: Step S1, classifying the pumped storage power station reservoir into multiple reservoir types based on the reservoir location and the topographical features of the reservoir area; Step S2, setting the key areas for reservoir leakage investigation for each reservoir type; Step S3: Based on the reservoir type, topographic features and key locations of reservoir leakage investigation, a parameterized reservoir leakage investigation drilling plan algorithm is used to output a parameterized reservoir leakage investigation drilling workload plan. Step S4: training and identifying library type classification, and building library type data source: Based on 3D images, orthophotos, oblique images, and satellite images, various reservoir types of pumped storage power stations are marked and the data source of reservoir type is trained; Step S5: arranging a parameterized reservoir leakage survey based on the reservoir type: Based on the reservoir image data, the reservoir type is intelligently identified using the reservoir type data source, and the reservoir dam axis, the reservoir boundary line, the normal water level elevation value, and the terrain line extracted based on the reservoir image data are combined with the key parts of the reservoir leakage investigation in step S2, and the reservoir leakage investigation boreholes are parameterized and arranged using the method of step S3; Step S3 is specifically as follows: Step S31, parameterizing the survey area boundary: The survey area boundary is generated based on the reservoir dam axis, reservoir boundary line, and normal water level elevation value, reservoir terrain characteristics, and reservoir perimeter distance conditions. The reservoir perimeter distance condition refers to the dam axis as a fixed boundary, combined with the user-selected reservoir boundary line or normal water level elevation line, to independently set the outward expansion distance. The reservoir terrain characteristics refer to the terrain slope, slope aspect, and terrain curvature within the reservoir perimeter distance condition area that meets the reservoir perimeter distance condition. Step S32: parameterize the drilling area of ​​key parts of reservoir leakage investigation: According to the key parts of reservoir leakage investigation for each reservoir type in step S2, combined with the topographical characteristics of the investigation area, a parameterized drilling area for key parts of reservoir leakage investigation is set; Step S33: Parameterized drilling arrangement: The overlapping area of ​​the survey area set in step S31 and the drilling area of ​​the key parts of the reservoir leakage survey set in step S32 is used as the boundary of the drilling layout area; within the boundary of the drilling layout area, parameterized drilling spacing, drilling hole position, and drilling depth are performed to intelligently set the drilling workload.

2. The method for parameterized leakage survey and arrangement of pumped storage reservoirs based on reservoir type classification according to claim 1 is characterized in that: The reservoir types include river valley type reservoirs, gully type reservoirs, bank type reservoirs, gully source type reservoirs and mountain top platform type reservoirs; The river valley reservoir mentioned above refers to the reservoir formed by damming the main river in the project area; The gully-type reservoir refers to a reservoir formed by building a dam in a river tributary, and the reservoir backwater line does not reach the source of the gully; The bank-type reservoir refers to a reservoir that is formed by excavation and filling combined with a dam on a terrace or concave plot on the river bank, and does not encroach on the riverbed; The gully source reservoir refers to a reservoir formed by building a dam at the source of a gully; The mountaintop terrace type reservoir refers to a reservoir formed by excavation and filling combined with a surrounding dam on the relatively flat terrace at the top of the mountain in the project area.

3. The method for parameterized leakage survey and arrangement of pumped storage reservoirs based on reservoir type classification according to claim 2 is characterized in that: The key areas for reservoir leakage investigation of each reservoir type mentioned above refer to the key areas for reservoir leakage investigation of each reservoir type set according to the topographic and geomorphic characteristics, engineering geological and hydrogeological conditions, and reservoir type characteristics of the pumped-storage power station reservoir area.

4. The method for parameterized leakage investigation and arrangement of pumped storage reservoirs based on reservoir type classification according to claim 2 is characterized in that: The key areas for reservoir leakage investigation for each reservoir type include: For valley-type reservoirs, the key areas for reservoir leakage investigation are the reservoir section in front of the dam, river bends and river areas; For the bank-type reservoir and the mountaintop terrace-type reservoir, the key areas for reservoir leakage investigation are the reservoir bottom and the reservoir perimeter; For the valley-type reservoir and the gully-source-type reservoir, the key areas for reservoir leakage investigation are the reservoir section in front of the dam, the thin watershed and the low pass.

5. The method for parameterized leakage investigation and arrangement of pumped storage reservoirs based on reservoir type classification according to claim 1 is characterized in that: Step S32 specifically includes: Step S32-1, generating a drilling area for key reservoir leakage survey locations based on the reservoir type and the key reservoir leakage survey locations of each reservoir type in step S2, including: For the reservoir section in front of the dam, the river valley area with a self-set distance condition upstream of the reservoir dam axis, combined with the reservoir perimeter or normal water level elevation line, shall be used as the drilling area for the reservoir section in front of the dam; For river bend plots, based on the curvature of the river valley terrain, the curvature radius is less than 5 times the width of the river channel at normal water level, and the river bend terrain with a slope less than 25° is set as the drilling area for the river bend plot; For riverbed plots, based on the terrain data between adjacent river channels, the area with a gentle terrain slope of less than 25° between the two river channels is set as the drilling area for the riverbed plot; For the reservoir bottom, the area within the survey area between the reservoir dam axis and the reservoir perimeter is used as the reservoir bottom drilling area; For the perimeter of the reservoir, the perimeter area of ​​the reservoir is used as the drilling area; For thin watersheds, based on the reservoir terrain features of the survey area in step S31, the ridge width, ridge crest, and pass values ​​at the normal water level elevation or the reservoir perimeter elevation are identified. If the reservoir perimeter ridge width is lower than the self-set width value, it is considered a thin watershed. The ridge crest and pass are used as the thin watershed drilling area. For low-lying pass areas, the area with gentle pass terrain on the ridgeline of the reservoir surrounding the reservoir that is not a thin watershed and that meets the reservoir surrounding distance condition in the survey area in step S31 is used as the drilling area for the low-lying pass areas; Step S32-2: Based on the drilling area of ​​the key part of the reservoir leakage investigation generated in step S32-1, a spatial geometric analysis algorithm is used to generate the boundary of the drilling area of ​​the key part of the reservoir leakage investigation.

6. The method for parameterized leakage investigation and arrangement of pumped storage reservoirs based on reservoir type classification according to claim 1, characterized in that: Step S33 specifically includes: Step S33-1, parameterizing the drilling spacing: Within the boundaries of the drilling arrangement area, the drilling spacing is independently set and parameterized; Step S33-2, parameterize the initial drilling hole positions: Optimizing and selecting preliminary drilling hole locations based on the drilling arrangement area boundary and the drilling hole spacing includes: (1) For the reservoir section in front of the dam and the reservoir bottom containing the dam axis, that is, the area containing the dam axis factor, the center point of the dam axis is taken as the starting point, and the layout line perpendicular to the dam axis is generated through vector operation. Subsequently, according to the drilling spacing conditions and the boundary conditions of the drilling layout area, the layout lines parallel to the dam axis and the layout lines perpendicular to the dam axis are gradually parameterized and generated; grid intersection points are generated for each horizontal and vertical layout line, and each grid intersection point is a preliminary drilling hole position; and preliminary drilling hole positions are also generated on the dam axis section according to the drilling spacing conditions and the boundary conditions of the drilling layout area; (2) For river bends and inter-river plots, and reservoir bottom locations that do not include the dam axis, that is, areas that do not include the dam axis factor, the center point of the area is determined using a spatial geometry algorithm. Based on the borehole spacing and the boundary conditions of the drilling layout area, forward grid lines are generated. The intersection of each grid line is the preliminary drill hole location; (3) For the reservoir perimeter, i.e., the polyline of bank-type and mountaintop terrace-type reservoirs, the starting point of the polyline is used as the drilling start point, and the preliminary drilling positions are generated according to the drilling spacing; (4) For thin watersheds and low passes, the initial drilling holes are arranged at the peaks and ridge passes; At the same time, according to the independently set parametric arrangement order of the preliminary drilling hole positions and the hole position repeated arrangement spacing conditions, the preliminary drilling hole positions are filtered to obtain filtered preliminary drilling hole positions; Step S33-3, optimizing the initial drilling hole positions: For the preliminary drilling hole locations, adaptive weight optimization is performed by combining the preliminary drilling hole location optimization boundary distance threshold and the terrain slope to screen out the optimized drilling hole locations that are closest to the preliminary drilling hole locations, have the most suitable terrain slope, and are convenient for drilling arrangement, and identify the elevation values ​​of the optimized drilling hole locations; Step S33-4, parameterize the drilling depth value: The drilling depth distance condition can be set independently. The drilling depth distance condition includes the relative distance value below the top boundary of the aquiclude and the relative distance value below the groundwater level. The distance condition options can be selected and the drilling depth distance value can be set independently for each option. If the drilling depth distance condition factors are not met, the drilling depth value can be set independently. Step S33-5, parameterizing drilling attribute information: According to the parameterized drill hole position, drill hole position elevation value and drill hole depth value, the drill hole number, drill hole elevation and drill hole depth attribute information are parameterized; the drill hole number is determined according to the parameterized drill hole arrangement sequence, and the sequence of hole position intersections is the default sequence of terrain polyline nodes. The reservoir bottom, river bend and inter-river space default to north first then south, west first then east, left first then right. The dam front section defaults to the dam axis first and then the upstream dam front area.

7. A pumped storage reservoir leakage parameterization survey and arrangement method based on reservoir type classification according to claim 6, characterized in that: In step S33-3, the adaptive weight optimization is: ； ； ； in: is the objective function, is the normalized distance score between the candidate point and the initial hole position, Normalized slope score for candidate points, 、 is the weight coefficient, which can be set independently or set as a dynamic weight coefficient to meet + =1; is the initial hole coordinate, Optimize the boundary distance threshold for the initial hole position; is the coordinate of the candidate point; is the terrain slope value of the candidate point, is the minimum terrain slope value within the boundary distance threshold, The maximum terrain slope value within the boundary distance threshold.

8. The method for parameterized leakage survey and arrangement of pumped storage reservoirs based on reservoir type classification according to claim 1 is characterized in that: When parameterizing the arrangement of reservoir leakage investigation boreholes, the parameters display the borehole elevation and depth attributes, and the borehole arrangement can be adjusted autonomously.

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