Methods and related products for determining the reserves of deep riverbed overburden for use as artificial aggregate

Abstract

This invention relates to the field of hydropower engineering, specifically to a method and related products for determining the reserves of deep riverbed overburden layers used as artificial aggregate. The method includes: determining the location of exploration boreholes; drilling; dividing the riverbed overburden layer into layers; identifying substandard materials in each layer; drawing an isothickness map of the substandard materials; calculating the total reserves; calculating the reserves of substandard materials; and determining the reserves of qualified materials in each overburden layer. Based on the stratification of deep overburden layers, this invention draws an isothickness map of the substandard materials in each layer on a plane according to the results of exploration tests. Using the isothickness map, the reserves of substandard materials in each layer are calculated by dividing the thickness equally. The total reserves in each overburden layer are subtracted from the reserves of each substandard material to obtain the reserves of qualified materials in each layer, forming a comprehensive stratified and zoned reserve map.

Description

Technical Field

[0001] This invention relates to the field of hydropower engineering, specifically to a method and related products for determining the reserves of deep riverbed overburden for use as artificial aggregate. Background Technology

[0002] In hydropower projects, concrete is a crucial material for constructing hydraulic structures, and its quality directly affects the structural stability and operational safety of the project. Concrete aggregates, as an important component of concrete, are of paramount importance to concrete quality. Typically, concrete aggregates in hydropower projects are derived from natural sand and gravel in the riverbed overburden or from artificially processed aggregates.

[0003] Riverbed overburden is sediment formed by long-term scouring, transportation, and deposition by rivers, mainly consisting of sand, pebbles, and gravel. These materials can be directly used as concrete aggregate after screening and processing. However, in actual engineering projects, the thickness and quality of the overburden are often uneven, affecting aggregate utilization efficiency. Furthermore, deep riverbed overburden presents certain technical challenges during extraction and exploration, such as the difficulty in accurately assessing the reserves and distribution of materials in each layer.

[0004] Traditional exploration methods rely primarily on surface surveys and borehole sampling, lacking systematic methods for calculating reserves and making it difficult to fully understand the material composition and distribution of riverbed overburden. In such cases, the commonly used reserve calculation methods suffer from significant errors and low efficiency, leading to insufficient resource utilization and increased engineering costs and environmental burden.

[0005] Therefore, it is necessary to develop a new technological approach to comprehensively assess the aggregate reserves in deep riverbed overburden through scientific exploration and reserve calculation methods, providing reliable data support for engineering planning and construction. This will not only improve aggregate utilization and reduce project costs, but also minimize environmental impact and achieve sustainable development of the project. Summary of the Invention

[0006] The technical problem to be solved by the present invention is that it is difficult to accurately assess the material composition, reserves and distribution of deep riverbed overburden in the prior art. The purpose is to provide a method and related products for determining the reserves of deep riverbed overburden as artificial aggregate, thereby realizing the assessment of the qualified material reserves of deep riverbed overburden.

[0007] This invention is achieved through the following technical solution:

[0008] A method for determining the potential reserves of deep riverbed overburden for use as artificial aggregate includes:

[0009] Determine the boundary of the riverbed to be excavated, and determine the location of exploration boreholes within the boundary of the riverbed;

[0010] Drill holes at the location of the exploration boreholes and make the boreholes penetrate to the bedrock beneath the overburden layer;

[0011] The composition of the core material was revealed by the exploration boreholes, and the riverbed overburden was divided into three layers: the first layer is a layer containing boulders and gravel or a layer containing boulders and crushed gravel; the second layer is a layer of sand, gravel and gravel and a layer of gravelly sand; and the third layer is a layer containing boulders and gravel or a layer containing boulders and crushed gravel.

[0012] Core samples were taken from each layer, and aggregate tests were conducted to identify substandard materials in each layer.

[0013] Draw an isopleth diagram of the defective material to determine its distribution and thickness in different layers;

[0014] The total reserves of each overburden layer were calculated using the parallel section method.

[0015] The amount of substandard material in each zone of each layer is calculated using an equal thickness diagram.

[0016] The qualified material reserve for each cover layer is determined as the difference between the total reserve and the unqualified material reserve.

[0017] Optionally, the total reserves, non-conforming material reserves, and conforming material reserves can be marked on the equal thickness map corresponding to the cover layer of each layer.

[0018] Specifically, the methods for determining the location of exploration boreholes include:

[0019] Determine the longitudinal exploration line along a direction parallel to the river flow direction, and the distance between adjacent longitudinal exploration lines is a;

[0020] Determine transverse exploration lines along a direction perpendicular to the river flow direction, with a distance b between adjacent transverse exploration lines;

[0021] Determine the intersection points between the longitudinal and transverse exploration lines, and use these intersection points as the locations of exploration boreholes.

[0022] Alternatively, a = b.

[0023] Specifically, the indicators for substandard materials are: mud content greater than 1% and oversized stone content greater than 10%.

[0024] Optionally, methods for drawing isothighting maps include:

[0025] Determine the exploration layout map according to the stratification;

[0026] The distribution of substandard materials is determined on the exploration layout map of each layer;

[0027] Determine the boundaries of the non-conforming material range and the corresponding location of its maximum thickness;

[0028] Project the boundary of the range to the planar view to obtain the zero edge of the equal thickness map; the zero edge is a closed smooth curve centered at the position corresponding to the maximum thickness.

[0029] Set the spacing c between the lines of equal thickness, and set n fixed points from the 0 edge line toward the center. The distance between radially adjacent fixed points is c. Connect the fixed points that are equidistant from the 0 edge line with a smooth curve to obtain n lines of equal thickness.

[0030] Obtain the uniform thickness map corresponding to each layer.

[0031] Optionally, the methods for calculating the amount of substandard material reserves include:

[0032] Calculate the distribution area S of the defective material based on the 0 equal thickness line, and determine the maximum thickness H;

[0033] The amount of substandard material stored in each layer is V = 0.5 * S * H.

[0034] Optionally, if each layer of the cover contains multiple 0-thickness lines, the unqualified material storage of multiple zones is calculated according to the 0-thickness lines, and the sum of the unqualified material storage of multiple zones is taken as the unqualified material storage of that layer.

[0035] A computer-readable storage medium storing a computer program that, when executed by a processor, implements, as described above, a method for determining the amount of deep riverbed cover layer to be used as artificial aggregate reserves.

[0036] A computer program product comprising a computer program / instructions which, when executed by a processor, implement a method as described above for determining the reserves of deep riverbed overburden for use as artificial aggregate.

[0037] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0038] Based on the layering of deep overburden, this invention draws an equal thickness map of non-conforming material in each layer on a plane according to the results of exploration tests. Using the equal thickness map, the reserves of non-conforming material in each layer are calculated by dividing the thickness equally. The total reserves in the overburden layer of each layer are subtracted from the reserves of each non-conforming material to obtain the qualified reserves of each layer, thus forming a comprehensive layered and zoned reserve map.

[0039] Based on the distribution of indicators, the qualified material reserves are calculated by layering and partitioning using equal thickness maps. This method can not only reflect the distribution of qualified materials in each layer and each adjacent layer from a planar perspective, but also reflect the distribution of qualified materials in each layer from an elevation perspective. It can provide a basis for the next step of formulating reasonable mining routes and mining plans, effectively saving construction time, reducing excavation and transportation costs, and reducing waste and waste materials. Attached Figure Description

[0040] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the invention. These drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, but do not constitute a limitation on the embodiments of the present invention.

[0041] Figure 1 This is a flowchart illustrating the method and related products for determining the reserves of deep riverbed overburden as artificial aggregate according to the present invention.

[0042] Figure 2 This is a schematic diagram of the arrangement of exploration boreholes according to the present invention.

[0043] Figure 3 This is a schematic diagram of the layering according to the present invention.

[0044] Figure 4 It is a uniform thickness diagram of the first layer according to the present invention.

[0045] Figure 5 It is a uniform thickness diagram of the second layer according to the present invention.

[0046] Figure 6 It is a diagram of the equal thickness of the third layer according to the present invention. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0048] It should also be noted that, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings.

[0049] Where there is no conflict, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0050] Example 1

[0051] like Figure 1 As shown, a method for determining the reserves of deep riverbed overburden for use as artificial aggregate is provided, comprising:

[0052] The first step is to determine the boundary of the riverbed to be excavated and to locate the exploration boreholes within the boundary. Based on the engineering design drawings, the boundary of the riverbed area to be excavated is determined, and the locations of multiple exploration boreholes are planned and marked within this area.

[0053] The second step is to drill at the location of the exploration borehole and make the borehole penetrate to the bedrock beneath the overburden. Using mechanical equipment, drill vertically downwards from the ground to obtain samples of underground rock and soil layers. At the same time, the drilling depth must reach and penetrate the overburden layer until it reaches the bedrock in order to obtain comprehensive geological profile information.

[0054] The third step involves revealing the composition of the core material through exploration boreholes and dividing the riverbed overburden into three layers: the first layer is a layer containing boulders and gravel or a layer containing boulders and crushed gravel; the second layer is a layer containing sand, gravel, and gravelly sand; and the third layer is a layer containing boulders and gravel or a layer containing boulders and crushed gravel. By analyzing the core samples taken from the exploration boreholes, the material composition at different depths is revealed, and the riverbed overburden is divided into three main layers based on its characteristics.

[0055] The fourth step is to take core samples from each layer and conduct aggregate tests to identify unqualified materials in each layer. Aggregate tests are used to test whether the core samples meet the requirements for concrete aggregates, and usually include indicators such as particle size distribution, strength, and mud content.

[0056] The fifth step is to draw an isothickness map of the substandard material to determine its distribution and thickness in different layers. An isothickness map uses contour lines to represent the thickness distribution of a specific substance (such as substandard material) in different regions. Contour lines are lines connecting points of equal thickness, similar to contour lines.

[0057] The sixth step is to calculate the total reserves of each cover layer using the parallel section method. By dividing the cover layer into multiple parallel sections, the area of ​​the cover layer in each section is calculated, and then the total reserves of the entire cover layer are calculated using the area and spacing of these sections.

[0058] Step 7: Calculate the amount of defective material in each zone of each layer using the equal thickness map. Divide the defective material in each layer into multiple zones using the equal thickness map, and then calculate the amount of defective material in each zone to obtain the total amount of defective material in each layer.

[0059] Step 8: Determine the qualified material reserves for each cover layer as the difference between the total reserves and the unqualified material reserves. By subtracting the unqualified material reserves from the total reserves, the qualified material reserves that meet the standards in each layer are calculated, thereby accurately assessing the amount of resources available for use as artificial aggregate.

[0060] Step 9: Mark the total reserves, unqualified material reserves, and qualified material reserves onto the equal thickness map corresponding to the cover layer of each layer.

[0061] Based on the thickness map of each layer of non-conforming material, the distribution range, thickness, and reserves of each layer of conforming material can be seen from the plan view. The range lines and thicknesses of conforming material in adjacent layers are also reflected. The reserve calculation results for each layer and zone are marked next to the plan view (this reserve calculation can serve as the basis for mining planning. When mining from top to bottom to the layer boundary, the mining route and mining plan for the next layer can be formulated based on the reserves of each layer and zone, so as to better and more rationally plan the mining, save the construction period, and reduce waste).

[0062] Example 2

[0063] This embodiment provides a method for determining the location of the exploration borehole in the first step, including:

[0064] Longitudinal exploration lines are determined along a direction parallel to the river flow, with a distance of a between adjacent longitudinal exploration lines; transverse exploration lines are determined along a direction perpendicular to the river flow, with a distance of b between adjacent transverse exploration lines.

[0065] Identify the intersections between longitudinal and transverse exploration lines and use these intersections as the locations of exploration boreholes. By arranging exploration boreholes at the intersections of longitudinal and transverse exploration lines, a grid-like exploration layout can be formed across the entire riverbed. Each intersection point represents the location of an exploration borehole, thus systematically covering the entire area to be explored and ensuring the acquisition of comprehensive and uniform geological information.

[0066] As a preferred option, a = b can be chosen, that is, equal longitudinal and transverse spacing is selected, so that the exploration holes are evenly distributed throughout the grid, which simplifies the exploration layout design and ensures the uniformity and integrity of the exploration coverage.

[0067] Example 3

[0068] For the fourth step, the indicators for unqualified materials are: mud content greater than 1% (excessive mud content will affect the quality of concrete) and oversized stone content greater than 10%.

[0069] Oversized aggregate content refers to the amount of stones exceeding a specified particle size in concrete aggregate. Oversized aggregate affects the particle size distribution of the aggregate, thus impacting the performance of the concrete. The specific value of the oversized aggregate content needs to be determined based on project requirements.

[0070] For step five, the methods for drawing the equal thickness map include:

[0071] The exploration layout plan (a plan showing the location of each exploration borehole and the layout of exploration lines) is determined according to the stratification.

[0072] The distribution of substandard materials is determined on the exploration layout map of each layer.

[0073] Determine the boundaries of the non-conforming material range (the distribution boundary of the non-conforming material on the plane) and the corresponding location of the maximum thickness (the maximum thickness of the non-conforming material in the vertical direction and its corresponding plane position);

[0074] Project the boundary of the range to the planar view to obtain the zero edge of the equal thickness map; the zero edge is a closed smooth curve centered at the position corresponding to the maximum thickness.

[0075] Set the spacing c between the lines of equal thickness. Starting from the edge 0, set n fixed points sequentially towards the center. The distance between radially adjacent fixed points is c. Connect the fixed points equidistant from the edge 0 with a smooth curve to obtain n lines of equal thickness. That is, starting from the edge 0, set fixed points inward according to the set spacing c to form a series of points equidistant from the edge 0. Then connect these fixed points with a smooth curve to form multiple lines of equal thickness, representing the distribution of different thicknesses.

[0076] Obtain the thickness map corresponding to each layer, draw the thickness map of the defective material in each layer, and intuitively show the thickness distribution of the defective material in each layer on the plane.

[0077] Example 4

[0078] In step six, the total reserves are determined using the parallel section method, a common method for calculating the reserves or volume of geological bodies (such as mineral deposits, soil layers, overburden, etc.). This method involves dividing the geological body into multiple parallel sections, calculating the area of ​​each section, and then estimating the volume or reserves of the entire geological body based on the areas of these sections and the distances between them.

[0079] Steps of the parallel section method

[0080] Sectioning: Dividing a geological body into multiple sections along a parallel direction (usually perpendicular to the main direction, such as the direction of a river). The spacing between each section should be consistent, and the common spacing depends on the size and shape of the geological body.

[0081] Calculating cross-sectional area: On each cross-section, draw a cross-sectional diagram based on the actual shape and data of the geological body (such as borehole data, exploration data, etc.). The area of ​​each cross-section can be calculated using geometric segmentation methods (such as triangles, rectangles, etc.) or integral methods.

[0082] Calculate the volume between adjacent cross-sections: Take the average area of ​​two adjacent cross-sections, multiply it by the distance between these two cross-sections, and you get the volume of this segment. Volume = (Area of ​​Cross-section 1 + Area of ​​Cross-section 2) / 2 * Distance between cross-sections

[0083] The total reserves or volume are calculated by summing up the volumes between all adjacent sections.

[0084] In step seven, the calculation method for the amount of substandard material reserves includes:

[0085] The distribution area S of the defective material is calculated based on the 0 isothroat line, and the maximum thickness H is determined. Based on the drawn isothroat map, the defective material region enclosed by the 0 isothroat line is identified, and the total area S of this region is calculated. Simultaneously, by analyzing data from each exploration borehole, the maximum thickness H of the defective material within this region is determined.

[0086] The amount of substandard material stored in each layer is V = 0.5 * S * H.

[0087] Within a single covering layer, there may be multiple areas of non-conforming material distribution, each defined by its own 0-thickness line.

[0088] If each layer of the cover contains multiple 0-thickness lines, then calculate the unqualified material reserves of multiple zones according to the 0-thickness lines, and take the sum of the unqualified material reserves of multiple zones as the unqualified material reserves of that layer.

[0089] Example 5

[0090] The following is a specific example to illustrate this.

[0091] The first step is to lay out the exploration lines according to the riverbed boundaries in the engineering design drawings, with a spacing of approximately 40m. The lines perpendicular to the river are arranged as Horizontal 1, Horizontal 2, Horizontal 3, Horizontal 4, and Horizontal 5; the lines along the river direction are Vertical 1, Vertical 2, and Vertical 3. The exploration boreholes should penetrate 10m into the bedrock beneath the overburden. For example... Figure 2 As shown.

[0092] The second step is to drill at the location of the exploration borehole and make the borehole penetrate into the bedrock beneath the overburden.

[0093] The third step is to stratify the riverbed overburden layer from old to new and from bottom to top based on the composition of the core material revealed by the borehole. The layers are divided into ① a layer containing drifting pebbles (crushed) gravel, ② a layer of sand, pebbles and gravel and a layer of gravelly sand, and ③ a layer containing drifting sand, pebbles (crushed) gravel.

[0094] The fourth step involves taking core samples from each layer for aggregate testing based on the stratification. Sections exhibiting unacceptable characteristics, such as mud content exceeding 1% or excessive oversized stones, are identified and marked on the cross-section. Finally, three strata boundaries are established on the plan view. The distribution of overburden strata and unacceptable materials is shown below. Figure 3 As shown.

[0095] The fifth step is to draw a thickness map of the substandard material. The thickness lines are drawn as dashed lines, with a thickness difference of 1 meter between adjacent lines. First, locate the distribution of the substandard material in each layer on the exploration layout map according to the stratification.

[0096] Then, based on the borehole exposure and cross-sectional view, find the boundary of the non-conforming material and the location of the thickest part; then project the location of the non-conforming material boundary onto the plan view. The boundary line is the 0 edge line of the equal thickness diagram. The 0 edge line should be drawn with the thickest part as the center to form a closed curve (connect the range of non-conforming material on the cross-section with a smooth curve according to the exposure in the borehole to form the distribution and shape of non-conforming material on the cross-section).

[0097] Then, based on the cross-section, from the boundary line (0-meter isothickness line) on each nearby cross-section, determine a fixed point 1m from the area with greater thickness. Connect these points with a smooth curve to form a closed curve with an isothickness of 1 meter. Then, successively draw isothickness lines of 1 meter, 2 meters, ... n meters according to the 1-meter thickness difference between adjacent lines. Finally, a isothickness diagram for each layer of defective material is formed, such as... Figure 4 , Figure 5 , Figure 6 As shown.

[0098] The sixth step involves calculating the reserves of each overburden layer based on exploration findings and test results, using the parallel section method (calculating the area of ​​each overburden layer on each cross section, then calculating the average area of ​​the overburden layer on two adjacent cross sections, and multiplying the average area by the distance between the two adjacent cross sections to obtain the qualified material reserves between the two cross sections). The calculation results are marked next to the plan view as V①, V②, and V③.

[0099] Step 7: Calculate the reserves of substandard materials in each zone of each layer using isothickness maps. As shown in layer ① in the figure, there are two zones of substandard material in this layer. According to exploration, substandard material with high mud content is generally exposed in a lenticular shape, and oversized stones are generally locally developed. To calculate the reserves of substandard material in each layer more accurately, calculations are performed on the isothickness map of each layer: First, calculate the distribution area S of substandard material based on the range of the 0 isothickness line; then find the value H with the largest thickness in the isothickness map; finally, ensure that the maximum isothickness line and the 0 isothickness line are evenly divided in thickness; that is, the reserves of substandard material in each zone of each layer are 0.5 × S × H, denoted as V①-1, V①-2, ...

[0100] Step 8: The qualified material storage capacity of each layer is calculated as follows: the storage capacity of the cover layer minus the storage capacity of the unqualified material included in each layer. The total storage capacity of the cover layer is the sum of the qualified material storage capacities of all layers. The calculation results are marked next to the plan. Vtotal①=Vtotal-Vtotal-1-Vtotal-2; Vtotal②=Vtotal-Vtotal-1-Vtotal-2; Vtotal③=Vtotal-Vtotal-1. Vtotal=Vtotal①+Vtotal②+Vtotal③. For example... Figure 5 , Figure 6 As shown.

[0101] Step nine involves using the thickness maps of the non-conforming materials in layers ①, ②, and ③ to visualize the distribution range, thickness, and reserves of the conforming materials in each layer. The boundaries and thicknesses of conforming materials in adjacent layers are also reflected. The reserve calculation results for each layer and zone are marked next to the plan view. (This reserve calculation can serve as a basis for mining planning. When mining from top to bottom to the layer boundaries, the mining routes and plans for the next layer are formulated based on the layer and zone reserves, allowing for better and more rational mining planning, saving time, and reducing waste.)

[0102] According to the excavation plan, exploration and testing work will be carried out within the excavation area to determine the material composition, origin, and structure of the deep riverbed overburden. The deep overburden will be divided into layers. Based on the distribution of non-conforming materials on the profile of each layer, an equal thickness map of non-conforming materials will be drawn on the plan of that layer. Using the equal thickness map, the reserves of non-conforming materials in each layer will be calculated by dividing the thickness equally. The total reserves in the overburden layer of each layer will be subtracted from the reserves of each non-conforming material to obtain the qualified rate reserves of each layer.

[0103] Based on the distribution of overburden indicators, the qualified material reserves can be calculated by layering and dividing the layers using equal thickness maps. This not only reflects the distribution of qualified material in each layer and adjacent layers on the plane, but also reflects the distribution of qualified material in each layer on the elevation. This can provide a basis for formulating reasonable mining routes and mining plans in the next step, effectively saving construction time, reducing excavation and transportation costs, and reducing waste and waste materials.

[0104] Example 6

[0105] A computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method for determining the amount of deep riverbed overburden to be used as artificial aggregate reserves.

[0106] Without loss of generality, computer-readable media can include computer storage media and communication media. Computer storage media includes volatile and non-volatile, removable and non-removable media implemented using any method or technology for storing information such as computer-readable instruction data structures, program modules, or other data. Computer storage media includes RAM, ROM, EPROM, EEPROM, flash memory or other solid-state storage technologies, CD-ROM, DVD or other optical storage, magnetic tape cassettes, magnetic tape, disk storage, or other magnetic storage devices. Of course, those skilled in the art will recognize that computer storage media are not limited to the above-mentioned types. The aforementioned system memories and mass storage devices can be collectively referred to as memory.

[0107] A computer program product comprising a computer program / instructions that, when executed by a processor, implement the above-described method for determining the reserves of deep riverbed overburden for use as artificial aggregate.

[0108] Computer program products include computer programs or instruction sets used to perform specific tasks or achieve specific functions. These programs or instructions are designed to be executed by a processor to implement a series of predefined steps or operations. The program product may be stored in various forms of computer storage media, such as memory, hard disks, solid-state drives, optical discs, or other forms of digital storage devices. It may exist in the form of compiled binary code or in the form of scripts or bytecode that can be executed by an interpreter. Through carefully designed algorithms and logical instructions, the program product enables the processor to process data in a specific order and manner, performing various functions such as data analysis, user interaction, and device control.

[0109] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0110] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0111] Those skilled in the art should understand that the above embodiments are merely for illustrating the present invention and are not intended to limit the scope of the invention. Those skilled in the art can make other changes or modifications based on the above invention, and these changes or modifications still fall within the scope of the present invention.

Claims

1. A method for determining the reserves of deep riverbed overburden for use as artificial aggregate, characterized in that, include: Determine the boundary of the riverbed to be excavated, and determine the location of exploration boreholes within the boundary of the riverbed; Drill holes at the location of the exploration boreholes and make the boreholes penetrate to the bedrock beneath the overburden layer; The composition of the core material was revealed by the exploration boreholes, and the riverbed overburden was divided into three layers: the first layer is a layer containing boulders and gravel or a layer containing boulders and crushed gravel; the second layer is a layer of sand, gravel and gravel and a layer of gravelly sand; and the third layer is a layer containing boulders and gravel or a layer containing boulders and crushed gravel. Core samples were taken from each layer, and aggregate tests were conducted to identify substandard materials in each layer. Draw an isopleth diagram of the defective material to determine its distribution and thickness in different layers; The total reserves of each overburden layer were calculated using the parallel section method. The amount of substandard material in each zone of each layer is calculated using an equal thickness diagram. The qualified material reserve for each cover layer is determined as the difference between the total reserve and the unqualified material reserve.

2. The method for determining the reserves of deep riverbed overburden as artificial aggregate according to claim 1, characterized in that, The total reserves, the reserves of substandard materials, and the reserves of qualified materials are marked on the equal thickness map corresponding to the cover layer of each layer.

3. The method for determining the reserves of deep riverbed overburden as artificial aggregate according to claim 1, characterized in that, Methods for determining the location of exploration boreholes include: Determine the longitudinal exploration line along a direction parallel to the river flow direction, and the distance between adjacent longitudinal exploration lines is a; Determine transverse exploration lines along a direction perpendicular to the river flow direction, with a distance b between adjacent transverse exploration lines; Determine the intersection points between the longitudinal and transverse exploration lines, and use these intersection points as the locations of exploration boreholes.

4. The method for determining the reserves of deep riverbed overburden as artificial aggregate according to claim 3, characterized in that, a = b.

5. The method for determining the reserves of deep riverbed overburden as artificial aggregate according to claim 1, characterized in that, The criteria for substandard materials are: mud content greater than 1% and oversized stone content greater than 10%.

6. The method for determining the reserves of deep riverbed overburden as artificial aggregate according to claim 1, characterized in that, Methods for drawing constant thickness maps include: Determine the exploration layout map according to the stratification; The distribution of substandard materials is determined on the exploration layout map of each layer; Determine the boundaries of the non-conforming material range and the corresponding location of its maximum thickness; Project the boundary of the range to the planar view to obtain the zero edge of the equal thickness map; the zero edge is a closed smooth curve centered at the position corresponding to the maximum thickness. Set the spacing c between the lines of equal thickness, and set n fixed points from the 0 edge line toward the center. The distance between radially adjacent fixed points is c. Connect the fixed points that are equidistant from the 0 edge line with a smooth curve to obtain n lines of equal thickness. Obtain the uniform thickness map corresponding to each layer.

7. The method for determining the reserves of deep riverbed overburden as artificial aggregate according to claim 1, characterized in that, The methods for calculating the amount of substandard material reserves include: Calculate the distribution area S of the defective material based on the 0 equal thickness line, and determine the maximum thickness H; The amount of substandard material stored in each layer is V = 0.5 * S * H.

8. The method for determining the reserves of deep riverbed overburden as artificial aggregate according to claim 7, characterized in that, If each layer of the cover contains multiple 0-thickness lines, then calculate the unqualified material reserves of multiple zones according to the 0-thickness lines, and take the sum of the unqualified material reserves of multiple zones as the unqualified material reserves of that layer.

9. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the method as described in any one of claims 1-8.

10. A computer program product comprising a computer program / instructions, characterized in that, When the computer program / instructions are executed by the processor, they implement the method as described in any one of claims 1-8.

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