CN106875382A - Tailings Dam size values extracting method and device - Google Patents
Tailings Dam size values extracting method and device Download PDFInfo
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Abstract
The present invention discloses a kind of Tailings Dam size values extracting method and device, can fast and effeciently calculate Tailings Dam scale, and cost is relatively low.The method includes：Obtain the initial land form data before high-definition remote sensing data and the Tailings Dam construction of the Tailings Dam that pending size values are extracted；High-definition remote sensing data and initial land form data are carried out into registration；Based on high-definition remote sensing data, pair plane characteristic related to Tailings Dam scale carries out remote sensing recognition, obtains the related plane characteristic of Tailings Dam；The terrain analyses such as topographic profile are carried out using the initial land form data plane characteristic related to Tailings Dam, Tailings Dam key edge fit point elevation information in the vertical is obtained, the three-D space structure after being built using crucial edge fit point elevation information reconstruct Tailings Dam in the vertical；Based on the three-D space structure of reconstruct, the classification three-D space structure of the dam bodys at different levels according to Tailings Dam calculates the gross area, total height of dam and the aggregate storage capacity of Tailings Dam.
Description
Technical Field
The invention relates to the field of remote sensing data processing and information extraction, in particular to a method and a device for extracting scale information of a tailing pond.
Background
The scale of the tailing pond is important parameter information of the tailing pond, is an important influence factor for determining the safety of the surrounding environment of the tailing pond, and has become an important judgment basis for carrying out classification and classification (generally, the larger the scale, the higher the corresponding supervision standard is, the tighter the supervision is) supervision work on the tailing pond in the fields of safety supervision, environmental protection and the like. Therefore, the accurate grasp of the important information of the size of the tailings pond is very critical. However, the current regulatory authorities in the fields of safety supervision, environmental protection and the like master the information of the scale of the tailing pond and the like mainly through local step-by-step investigation statistics, wherein some tailing pond enterprises may unintentionally "falsely report" the relevant scale information (for example, the scale information of the tailing pond such as the capacity, the dam height, the floor area and the scale grade is reported in a way lower than the actual situation) in order to reduce the supervised grade or not list in a key supervision list, so that the relevant information is distorted, and the corresponding supervision work is influenced. Moreover, the information which is falsely reported is not easy to be directly found on the one hand; on the other hand, even if the method is found, the cost for checking the actual value in the field is large (the related three-dimensional engineering parameters of the tailings pond need to be measured in the field). Therefore, a rapid, effective and low-cost method for acquiring the scale information of the tailing pond is urgently needed to strengthen the checking and supervision of the scale information of the tailing pond.
Disclosure of Invention
In view of the above, the present invention provides a technical method for extracting scale parameter Information of a tailing pond by using a GIS (Geographic Information System) three-dimensional analysis based on high-resolution remote sensing and topographic data to enhance the checking and monitoring of the scale Information of the tailing pond and ensure the quality of the statistical Information of ground investigation, aiming at the problems of distorted scale related Information of the tailing pond, lack of an effective method for checking and monitoring the scale Information of the tailing pond and the like in the current investigation and statistics of the tailing pond.
On one hand, the embodiment of the invention provides a method for extracting scale information of a tailing pond, which comprises the following steps:
s1, acquiring high-resolution remote sensing data of a tailing pond to be subjected to scale information extraction and original topographic data of the tailing pond before construction;
s2, calibrating the high-resolution remote sensing data and the original terrain data;
s3, carrying out remote sensing identification on the plane features related to the scale of the tailing pond based on the high-resolution remote sensing data to obtain the plane features related to the tailing pond, wherein the plane features related to the tailing pond comprise the overall boundary range of the tailing pond, the boundary range of each level of dam body and key edge points of each level of dam body and the peripheral terrain;
s4, performing terrain analysis such as terrain profile and the like on the plane features related to the tailing pond by using the original terrain data to obtain elevation information of the key edge points in the longitudinal direction, and reconstructing a three-dimensional space structure of the tailing pond after construction by using the elevation information of the key edge points in the longitudinal direction;
and S5, calculating the total area, the total dam height and the total storage capacity of the tailings pond according to the hierarchical three-dimensional space structure of each level of dam body of the tailings pond based on the reconstructed three-dimensional space structure.
Optionally, the S2 includes:
and taking the original topographic data as a reference, and carrying out geometric fine correction on the high-resolution remote sensing data to register the high-resolution remote sensing data and the original topographic data.
Optionally, the S5 includes:
calculating the total area A by the formulaWherein area (Pi) (i ═ 0,1, …, n-1) is the projected area of the ith dam Pi on the horizontal plane, n-1 is the maximum grade of the dam of the tailings pond, and area (Pn) is the projected area of the pond area formed by the top dam on the horizontal plane.
Optionally, the S5 includes:
extracting crest elevation and initial dam body of top dam bodyThe total dam height H is calculated according to the dam crest elevation of the top-level dam body and the dam bottom elevation of the initial dam body, and the calculation formula isWherein,is the dam crest elevation of the top-level dam body,Hand the elevation of the dam bottom of the initial dam body.
Optionally, the S5 includes:
carrying out filling and excavating analysis based on the grading three-dimensional space structure of each level of dam body of the tailing pond, and calculating the volume of each level of dam body;
calculating the total reservoir volume Vol according to the volume of each stage of dam body, wherein the calculation formula isWherein, vol (Pi) (i ═ 0,1, …, n-1) is the volume of the three-dimensional space enclosed by the surface of the ith dam Pi and the original terrain surface, n-1 is the maximum grade number of the dam of the tailings pond, and vol (pn) is the volume of the three-dimensional space enclosed by the reservoir area formed by the top dam and the original terrain surface.
On the other hand, an embodiment of the present invention provides a device for extracting scale information of a tailings pond, including:
the system comprises an acquisition unit, a storage unit and a processing unit, wherein the acquisition unit is used for acquiring high-resolution remote sensing data of a tailing pond to be subjected to scale information extraction and original topographic data before the tailing pond is built;
the registration unit is used for registering the high-resolution remote sensing data and the original terrain data;
and the identification unit is used for carrying out remote sensing identification on the plane features related to the scale of the tailing pond based on the high-resolution remote sensing data to obtain the plane features related to the tailing pond. The plane characteristics related to the tailings pond comprise the overall boundary range of the tailings pond, the boundary range of each level of dam body and key edge points of each level of dam body and the peripheral terrain;
the analysis unit is used for carrying out terrain analysis such as terrain profile and the like on the plane features related to the tailing pond based on the original terrain data, acquiring elevation information of the key edge points in the longitudinal direction, and reconstructing a three-dimensional space structure after the tailing pond is built by using the elevation information of the key edge points in the longitudinal direction;
and the calculating unit is used for calculating the total area, the total dam height and the total storage capacity of the tailings pond according to the hierarchical three-dimensional space structure of each level of dam body of the tailings pond based on the reconstructed three-dimensional space structure.
Optionally, the registration unit is specifically configured to:
and taking the original topographic data as a reference, and carrying out geometric registration and fine correction on the high-resolution remote sensing data to register the high-resolution remote sensing data and the original topographic data.
Optionally, the computing unit is specifically configured to:
calculating the total area A by the formulaWherein area (Pi) (i ═ 0,1, …, n-1) is the projected area of the ith dam Pi on the horizontal plane, n-1 is the maximum grade of the dam of the tailings pond, and area (pn) is the projected area of the pond area formed by the top dam on the horizontal plane.
Optionally, the computing unit is specifically configured to:
extracting the dam crest elevation of the top-level dam body and the dam bottom elevation of the initial dam body, calculating the total dam height H according to the dam crest elevation of the top-level dam body and the dam bottom elevation of the initial dam body, and adopting a calculation formula ofWherein,is the dam crest elevation of the top-level dam body,Hand the elevation of the dam bottom of the initial dam body.
Optionally, the computing unit is specifically configured to:
carrying out filling and excavating analysis based on the grading three-dimensional space structure of each level of dam body of the tailing pond, and calculating the volume of each level of dam body;
calculating the total reservoir volume Vol according to the volume of each stage of dam body, wherein the calculation formula isWherein, vol (Pi) (i ═ 0,1, …, n-1) is the volume of the three-dimensional space enclosed by the surface of the ith dam Pi and the original terrain surface, n-1 is the maximum grade number of the dam of the tailings pond, and vol (pn) is the volume of the three-dimensional space enclosed by the reservoir area formed by the top dam and the original terrain surface.
The method and the device for extracting the scale information of the tailing pond provided by the embodiment of the invention are characterized in that firstly, high-resolution remote sensing data of the tailing pond and original topographic data before the construction of the tailing pond are registered; then, carrying out remote sensing identification on the plane features related to the scale of the tailing pond based on the high-resolution remote sensing data to obtain the plane features related to the tailing pond; then, performing terrain analysis such as terrain profile and the like on the plane features related to the tailing pond by using the original terrain data to obtain elevation information of the key edge connecting points in the longitudinal direction, and reconstructing a three-dimensional space structure after construction of the tailing pond by using the elevation information of the key edge connecting points in the longitudinal direction; and finally, based on the reconstructed three-dimensional space structure, calculating the total area, the total dam height and the total reservoir capacity of the tailing reservoir according to the graded three-dimensional space structure of each grade of dam body of the tailing reservoir, wherein the whole scheme innovatively provides a new idea for monitoring ground engineering such as the tailing reservoir and the like in a mode of combining remote sensing data based on space base and space base with topographic data, and scale information of the tailing reservoir can be calculated quickly, effectively and at low cost, so that the effective checking and monitoring strength of the scale information of the tailing reservoir is improved, the deterrent force of enterprises is enhanced, the data quality of investigation statistical information of related tailing reservoirs is guaranteed, and the method has positive significance for perfecting and strengthening the environmental safety management work of the tailing reservoir.
Drawings
FIG. 1 is a schematic flow chart of an embodiment of a method for extracting scale information of a tailings pond of the present invention;
FIG. 2 is a plan structure view of a tailing pond;
FIG. 3 is an overall block diagram of the calculation of the scale information of the tailings pond according to an embodiment of the present invention;
FIG. 4 is an overall block diagram of the calculation of the scale information of the tailings pond in another embodiment of the invention;
fig. 5 is a schematic structural diagram of an embodiment of the device for extracting scale information of a tailing pond of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Firstly, it should be noted that, on the basis of fully utilizing the original terrain, the tailing pond usually forms a certain storage capacity by intercepting and damming step by step, and the tailings or solid wastes are stacked in the storage capacity, so that the tailing pond has obvious characteristics of step-by-step stacking. Therefore, if the high-resolution remote sensing data is utilized to comprehensively utilize the fine original topographic data before the construction of the tailing pond on the basis of fully mastering the horizontal distribution characteristics of the tailing pond, the scale information of the tailing pond, such as the total area, the total dam height, the total storage capacity and the like of the tailing pond can be comprehensively calculated through inversion. Generally, the higher the precision of the used remote sensing data and fine terrain Data (DEM), the more accurate the calculated scale information of the tailings pond is relatively. The method is mainly suitable for mountain-type and valley-type tailing ponds (the two tailing ponds account for more than 75.5 percent of the total number of the tailing ponds), and the calculation effect is good.
Referring to fig. 1, the present embodiment discloses a method for extracting scale information of a tailings pond, including:
s1, acquiring high-resolution remote sensing data of a tailing pond to be subjected to scale information extraction and original topographic data of the tailing pond before construction;
in this embodiment, the acquired data mainly includes high-resolution remote sensing data and fine DEM data. In order to more accurately master the current situation of the tailing pond, the high-resolution remote sensing data is preferably the latest situation remote sensing data, and the resolution is preferably better than 2 meters (m). The terrain data is original terrain data before the construction of the tailing pond. Also for more accurate calculation, the terrain data acquisition time is preferably not too far from the tailing pond construction time, and the accuracy is preferably better than 1: 5 ten thousand. The higher the precision of the remote sensing data and the DEM data is, the more accurate the scale information of the tailing pond obtained by calculation is relatively.
S2, registering the high-resolution remote sensing data and the original terrain data;
in a specific embodiment, the registration process mainly uses the original topographic data (or other auxiliary reference systems such as control points and control teleimages) as a reference, and performs geometric registration and fine correction processing on the high-resolution remote sensing data, so that the high-resolution remote sensing data and the topographic data can be well matched in space positioning.
S3, carrying out remote sensing identification on the plane features related to the scale of the tailing pond based on the high-resolution remote sensing data to obtain the plane features related to the tailing pond, wherein the plane features related to the tailing pond comprise the overall boundary range of the tailing pond, the boundary range of each level of dam body and key edge points of each level of dam body and the peripheral terrain;
s4, performing terrain analysis such as terrain profile and the like on the plane features related to the tailing pond by using the original terrain data to obtain elevation information of the key edge points in the longitudinal direction, and reconstructing a three-dimensional space structure of the tailing pond after construction by using the elevation information of the key edge points in the longitudinal direction;
and S5, calculating the total area, the total dam height and the total storage capacity of the tailings pond according to the hierarchical three-dimensional space structure of each level of dam body of the tailings pond based on the reconstructed three-dimensional space structure.
The method for extracting the scale information of the tailing pond provided by the embodiment of the invention comprises the steps of firstly, registering high-resolution remote sensing data of the tailing pond and original topographic data before the construction of the tailing pond; then, carrying out remote sensing identification on the plane features related to the scale of the tailing pond based on the high-resolution remote sensing data to obtain the plane features related to the tailing pond; then, performing terrain analysis such as terrain profile and the like on the plane features related to the tailing pond by using the original terrain data to obtain elevation information of the key edge connecting points in the longitudinal direction, and reconstructing a three-dimensional space structure after construction of the tailing pond by using the elevation information of the key edge connecting points in the longitudinal direction; and finally, based on the reconstructed three-dimensional space structure, calculating the total area, the total dam height and the total reservoir capacity of the tailing reservoir according to the graded three-dimensional space structure of each grade of dam body of the tailing reservoir, wherein the whole scheme innovatively provides a new idea for monitoring ground engineering such as the tailing reservoir and the like in a mode of combining remote sensing data based on space base and space base with topographic data, and the scale information of the tailing reservoir can be calculated quickly, effectively and at low cost, so that the effective checking and monitoring strength of the scale information of the tailing reservoir is improved, the deterrent force of enterprises is enhanced, the data quality of investigation statistical information of the related tailing reservoir is guaranteed, and the method has positive significance for perfecting and strengthening the environmental safety management work of the tailing reservoir.
On the basis of the foregoing method embodiment, the S5 may include the following steps not shown in the figure:
calculating the total area A by the formulaWherein area (Pi) (i ═ 0,1, …, n-1) is the projected area of the ith dam Pi on the horizontal plane, n-1 is the maximum grade of the dam of the tailings pond, and area (Pn) is the projected area of the pond area formed by the top dam on the horizontal plane.
As shown in fig. 2, a plan structure diagram of a tailings pond is shown, in fig. 2, Pi (i ═ 0, …,7) represents the i-th dam of the tailings pond, P8 represents the pond area formed by the top dam, H0 represents the dam bottom elevation of the initial dam of the tailings pond, Hi (i ═ 1, …,7) represents the dam bottom elevation of the i-th dam of the tailings pond, and H8 represents the dam top elevation of the 7-th dam of the tailings pond. The total area of the tailing pond
On the basis of the foregoing method embodiment, the S5 may include the following steps not shown in the figure:
extracting the dam crest elevation of the top-level dam body and the dam bottom elevation of the initial dam body, calculating the total dam height H according to the dam crest elevation of the top-level dam body and the dam bottom elevation of the initial dam body, and adopting a calculation formula ofWherein,is the dam crest elevation of the top-level dam body,Hand the elevation of the dam bottom of the initial dam body.
It will be appreciated that the dam will always meet at both ends in the lateral direction with a surrounding mountain or other feature and that the contact portion is where the height of the dam coincides with the height of the surrounding feature, so that the elevation of the dam crest can be estimated by taking the height of the feature at the point of contact with the dam. Similarly, the dam nadir elevation may be estimated by looking at the elevation of the nadir of the terrain on the dam line. The topographic profile analysis can be performed on the dam body, and the topographic elevation at the joint of the dam body and the lowest point elevation on the profile line are obtained from the topographic profile on the dam body line, so that the dam top elevation and the dam bottom elevation of the dam body can be obtained. And if the multi-level dam exists, calculating the total dam height of the tailings pond by comprehensively using the dam crest elevation of the top-level dam body and the lowest elevation of the initial dam.
Still taking the tailings pond shown in fig. 2 as an example to explain the calculation method of the total dam height of the tailings pond, the total dam height of the tailings pond shown in fig. 2 is the dam crest elevation of the topmost top-level dam minus the dam bottom elevation of the initial dam, that is: H-H8-H0.
On the basis of the foregoing method embodiment, the S5 may include the following steps not shown in the figure:
carrying out filling and excavating analysis based on the grading three-dimensional space structure of each level of dam body of the tailing pond, and calculating the volume of each level of dam body (or pond area);
calculating the total reservoir volume Vol according to the volume of each stage of dam body (or reservoir area) by the formulaWherein, vol (Pi) (i ═ 0,1, …, n-1) is the volume of the three-dimensional space enclosed by the surface of the ith dam Pi and the original terrain surface, n-1 is the maximum grade number of the dam of the tailings pond, and vol (pn) is the volume of the three-dimensional space enclosed by the reservoir area formed by the top dam and the original terrain surface.
It will be appreciated that the storage capacity of the tailings pond can be approximated by calculating the volume at a certain elevation (elevation) within the extent of the tailings pond, and that this volume is related to the topography within the extent of the tailings pond. Based on DEM topographic data, a volume analysis tool (filling and excavating tool) is utilized to draw a range needing volume calculation along the boundary of the tailing pond, and the calculated elevation is input, so that the volume under the elevation in the range can be calculated. If the input elevation is the designed dam crest elevation of the tailing pond, the designed pond capacity of the tailing pond can be estimated; if the current dam crest elevation of the tailings pond is input, the current full storage capacity of the tailings pond can be estimated. Because the tailing reservoir dam bodies are usually stacked step by step, in order to improve the calculation accuracy, the reservoir capacity needs to be calculated step by step and accumulated to obtain the total reservoir capacity, and the calculated elevation of each stage of dam body is the dam crest elevation of the corresponding dam body when the calculation is performed step by step.
Still taking the tailings pond shown in fig. 2 as an example to explain the calculation method of the total storage capacity of the tailings pond, the total storage capacity of the tailings pond shown in fig. 2 is the sum of the volumes from the 8 dam surfaces to the original terrain surface, and the sum of the volumes from the reservoir area formed by the top dam to the original terrain surface, that is:wherein, vol (Pi) (i is 0,1, …, n-1) is the volume of the ith dam body Pi, that is, in the range of the ith dam body Pi, the original terrain surface before construction is used as a filling datum plane, and H (i +1) is used as a filling volume of the filling elevation; vol (P8) is the filling volume in the reservoir area formed by the top dam body, the original terrain surface before construction is used as a filling datum plane, and H8 is used as a filling elevation.
Fig. 3 is an overall block diagram of scale information calculation of a tailing pond in an embodiment of the present invention, and referring to fig. 3, a data collection process is first performed, that is, high-resolution remote sensing data of the tailing pond and original terrain data before construction of the tailing pond are obtained; then, the process of data preprocessing is carried out, namely, the high-resolution remote sensing data and the original topographic data are registered through geometric registration and fine correction processing; then, performing remote sensing identification on the plane features related to the scale of the tailing pond based on the high-resolution remote sensing data to obtain the plane features related to the tailing pond, wherein the plane features include the overall boundary range of the tailing pond, the boundary range of each level of dam body and the key edge points of each level of dam body and the peripheral terrain, and the total area of the tailing pond can be calculated after the boundary range of each level of dam body (or pond area) of the tailing pond is determined, and the process is the same as the embodiment and is not repeated; then, performing topographic analysis processes such as topographic profile and the like, namely performing topographic profile analysis on the related plane characteristics of the tailing pond by using the original topographic data to obtain topographic distribution characteristics of the tailing pond in the longitudinal direction, further obtaining elevations of the dam bodies at all levels, and calculating the total dam height of the tailing pond; and finally, calculating the storage capacity, namely calculating the storage capacity of each level of dam (or storage area) by using a filling and excavating tool based on the elevation and boundary range of each level of dam (or storage area), and accumulating to obtain the total storage capacity of the tailings pond.
Fig. 4 is an overall block diagram of the calculation of the scale information of the tailings pond in another embodiment of the invention, and refer to fig. 4. On one hand, the plane structure information of the tailing pond is obtained by means of high-resolution remote sensing data, and the plane structure information comprises a tailing pond boundary range, positions and ranges of dam bodies at all levels, key edge point positions of the dam bodies and peripheral terrains and the like; on the other hand, the original topographic data provides topographic surface data before construction, and elevation information in the longitudinal direction in the range of the tailings pond can be obtained, particularly the elevation of the two ends of the dam body and the edge of the peripheral topography (usually, the topography of the edge is not changed and is at the same height as the dam body); and then reconstructing a three-dimensional space structure of the tailing pond through comprehensive inversion calculation based on the acquired horizontal structure information and the elevation information in the longitudinal direction. Once the three-dimensional space structure of the tailing pond is established, the total dam height, the total area and the total storage capacity can be calculated by utilizing GIS comprehensive analysis methods such as topographic profile analysis, geometric area calculation, filling and excavating three-dimensional space analysis and the like. Of course, according to the classification characteristics of the tailings pond, classification calculation and cumulative summation are usually adopted to improve the calculation accuracy.
Referring to fig. 5, the present embodiment discloses a tailing pond scale information extraction device, including:
the system comprises an acquisition unit 1, a storage unit and a processing unit, wherein the acquisition unit 1 is used for acquiring high-resolution remote sensing data of a tailing pond to be subjected to scale information extraction and original topographic data before the tailing pond is built;
the registration unit 2 is used for registering the high-resolution remote sensing data and the original terrain data;
in this embodiment, the registration unit may specifically be configured to:
and taking the original topographic data (or other auxiliary reference systems such as control points, control teleimages and the like) as a reference, and carrying out geometric registration and fine correction on the high-resolution remote sensing data to register the high-resolution remote sensing data and the original topographic data.
And the identification unit 3 is used for carrying out remote sensing identification on the plane features related to the scale of the tailing pond based on the high-resolution remote sensing data to obtain the plane features related to the tailing pond. The plane characteristics related to the tailings pond comprise the overall boundary range of the tailings pond, the boundary range of each level of dam body and key edge points of each level of dam body and the peripheral terrain;
the analysis unit 4 is configured to perform terrain analysis such as terrain profiling on the planar features related to the tailing pond based on the original terrain data, acquire elevation information of the key edge points in the longitudinal direction, and reconstruct a three-dimensional space structure of the tailing pond after construction by using the elevation information of the key edge points in the longitudinal direction;
and the calculating unit 5 is used for calculating the total area, the total dam height and the total storage capacity of the tailings pond according to the hierarchical three-dimensional space structure of each level of dam body of the tailings pond based on the reconstructed three-dimensional space structure.
In this embodiment, the computing unit may be specifically configured to:
calculating the total area A by the formulaWherein area (Pi) ((Pi))i is 0,1, …, n-1) is the projection area of the ith dam Pi on the horizontal plane, n-1 is the maximum stage number of the dam of the tailings reservoir, and area (Pn) is the projection area of the reservoir area formed by the top dam on the horizontal plane;
extracting the dam crest elevation of the top-level dam body and the dam bottom elevation of the initial dam body, calculating the total dam height H according to the dam crest elevation of the top-level dam body and the dam bottom elevation of the initial dam body, and adopting a calculation formula ofWherein,is the dam crest elevation of the top-level dam body,Hthe elevation of the dam bottom of the initial dam body is obtained; and
carrying out filling and excavating analysis based on the grading three-dimensional space structure of each level of dam body of the tailing pond, and calculating the volume of each level of dam body (or pond area);
calculating the total reservoir volume Vol according to the volume of each stage of dam body (or reservoir area) by the formulaWherein, vol (Pi) (i ═ 0,1, …, n-1) is the volume of the three-dimensional space enclosed by the surface of the ith dam Pi and the original terrain surface, n-1 is the maximum stage number of the dam of the tailings pond, and vol (pn) is the volume of the three-dimensional space enclosed by the reservoir area formed by the top dam and the original terrain surface.
The scale information extraction device for the tailing pond provided by the embodiment of the invention firstly registers high-resolution remote sensing data of the tailing pond and original topographic data before the construction of the tailing pond; then, carrying out remote sensing identification on the plane features related to the scale of the tailing pond based on the high-resolution remote sensing data to obtain the plane features related to the tailing pond; then, performing terrain analysis such as terrain profile and the like on the plane features related to the tailing pond by using the original terrain data to obtain elevation information of the key edge connecting points in the longitudinal direction, and reconstructing a three-dimensional space structure after construction of the tailing pond by using the elevation information of the key edge connecting points in the longitudinal direction; and finally, calculating the total area, the total dam height and the total reservoir capacity of the tailing pond according to the hierarchical three-dimensional space structure of each level of dam body of the tailing pond based on the reconstructed three-dimensional space structure. The whole scheme innovatively provides a new idea for monitoring ground projects such as a tailing pond and the like in a mode of combining remote sensing data based on space base and space base with topographic data, scale information of the tailing pond can be calculated quickly, effectively and at low cost, accordingly effective checking and monitoring of the scale information of the tailing pond is improved, deterrence force of enterprises is enhanced, data quality of investigation statistical information of related tailing ponds is guaranteed, and positive significance is achieved for perfecting and strengthening environmental safety management work of the tailing pond.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. The terms "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description. Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention is not limited to any single aspect, nor is it limited to any single embodiment, nor is it limited to any combination and/or permutation of these aspects and/or embodiments. Moreover, each aspect and/or embodiment of the present invention may be utilized alone or in combination with one or more other aspects and/or embodiments thereof.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (10)
1. A method for extracting scale information of a tailing pond is characterized by comprising the following steps:
s1, acquiring high-resolution remote sensing data of a tailing pond to be subjected to scale information extraction and original topographic data of the tailing pond before construction;
s2, registering the high-resolution remote sensing data and the original terrain data;
s3, carrying out remote sensing identification on the plane features related to the scale of the tailing pond based on the high-resolution remote sensing data to obtain the plane features related to the tailing pond, wherein the plane features related to the tailing pond comprise the overall boundary range of the tailing pond, the boundary range of each level of dam body and key edge points of each level of dam body and the peripheral terrain;
s4, performing terrain analysis such as terrain profile and the like on the plane features related to the tailing pond by using the original terrain data to obtain elevation information of the key edge points in the longitudinal direction, and reconstructing a three-dimensional space structure of the tailing pond after construction by using the elevation information of the key edge points in the longitudinal direction;
and S5, calculating the total area, the total dam height and the total storage capacity of the tailings pond according to the hierarchical three-dimensional space structure of each level of dam body of the tailings pond based on the reconstructed three-dimensional space structure.
2. The method according to claim 1, wherein the S2 includes:
and taking the original topographic data as a reference, and registering the high-resolution remote sensing data and the original topographic data by performing geometric registration and fine correction on the high-resolution remote sensing data.
3. The method according to claim 1 or 2, wherein the S5 includes:
calculating the total area A by the formulaWherein area (Pi) (i ═ 0,1, …, n-1) is the projected area of the ith dam Pi on the horizontal plane, n-1 is the maximum grade of the dam of the tailings pond, and area (Pn) is the projected area of the pond area formed by the top dam on the horizontal plane.
4. The method according to claim 1 or 2, wherein the S5 includes:
extracting the dam crest elevation of the top-level dam body and the dam bottom elevation of the initial dam body, and calculating according to the dam crest elevation of the top-level dam body and the dam bottom elevation of the initial dam bodyThe total dam height H is calculated by the formulaWherein,is the dam crest elevation of the top-level dam body,Hand the elevation of the dam bottom of the initial dam body.
5. The method according to claim 1 or 2, wherein the S5 includes:
carrying out filling and excavating analysis based on the grading three-dimensional space structure of each level of dam body of the tailing pond, and calculating the volume of each level of dam body;
calculating the total reservoir volume Vol according to the volume of each stage of dam body, wherein the calculation formula isWherein, vol (Pi) (i ═ 0,1, …, n-1) is the volume of the three-dimensional space enclosed by the surface of the ith dam Pi and the original terrain surface, n-1 is the maximum grade number of the dam of the tailings pond, and vol (pn) is the volume of the three-dimensional space enclosed by the reservoir area formed by the top dam and the original terrain surface.
6. A tailing pond scale information extraction device is characterized by comprising:
the system comprises an acquisition unit, a storage unit and a processing unit, wherein the acquisition unit is used for acquiring high-resolution remote sensing data of a tailing pond to be subjected to scale information extraction and original topographic data before the tailing pond is built;
the registration unit is used for registering the high-resolution remote sensing data and the original terrain data;
the identification unit is used for carrying out remote sensing identification on the plane features related to the scale of the tailing pond based on the high-resolution remote sensing data to obtain the plane features related to the tailing pond, wherein the plane features related to the tailing pond comprise the overall boundary range of the tailing pond, the boundary range of each level of dam body and key edge points of each level of dam body and the peripheral terrain;
the analysis unit is used for carrying out terrain analysis such as terrain profile and the like on the plane features related to the tailing pond based on the original terrain data, acquiring elevation information of the key edge points in the longitudinal direction, and reconstructing a three-dimensional space structure after the tailing pond is built by using the elevation information of the key edge points in the longitudinal direction;
and the calculating unit is used for calculating the total area, the total dam height and the total storage capacity of the tailings pond according to the hierarchical three-dimensional space structure of each level of dam body of the tailings pond based on the reconstructed three-dimensional space structure.
7. The apparatus according to claim 6, wherein the registration unit is specifically configured to:
and taking the original topographic data as a reference, and registering the high-resolution remote sensing data and the original topographic data by performing geometric registration and fine correction on the high-resolution remote sensing data.
8. The apparatus according to claim 6 or 7, wherein the computing unit is specifically configured to:
calculating the total area A by the formulaWherein area (Pi) (i ═ 0,1, …, n-1) is the projected area of the ith dam Pi on the horizontal plane, n-1 is the maximum grade of the dam of the tailings pond, and area (Pn) is the projected area of the pond area formed by the top dam on the horizontal plane.
9. The apparatus according to claim 6 or 7, wherein the computing unit is specifically configured to:
extracting the dam crest elevation of the top-level dam body and the dam bottom elevation of the initial dam body, calculating the total dam height H according to the dam crest elevation of the top-level dam body and the dam bottom elevation of the initial dam body, and calculating the height H of the damIs of the formulaWherein,is the dam crest elevation of the top-level dam body,Hand the elevation of the dam bottom of the initial dam body.
10. The apparatus according to claim 6 or 7, wherein the computing unit is specifically configured to:
carrying out filling and excavating analysis based on the grading three-dimensional space structure of each level of dam body of the tailing pond, and calculating the volume of each level of dam body;
calculating the total reservoir volume Vol according to the volume of each stage of dam body, wherein the calculation formula isWherein, vol (Pi) (i ═ 0,1, …, n-1) is the volume of the three-dimensional space enclosed by the surface of the ith dam Pi and the original terrain surface, n-1 is the maximum grade number of the dam of the tailings pond, and vol (pn) is the volume of the three-dimensional space enclosed by the reservoir area formed by the top dam and the original terrain surface.
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| CN111292325A (en) * | 2020-03-31 | 2020-06-16 | 中国地质调查局西安地质调查中心(西北地质科技创新中心) | Fluorite ore identification method and system based on remote sensing technology |
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Cited By (4)
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| CN109269555A (en) * | 2018-09-03 | 2019-01-25 | 空中梦想（北京）科技有限公司 | System and method is monitored based on unmanned plane and the Safety of Tailings Dam of dimensional Modeling Technology |
| CN111292325A (en) * | 2020-03-31 | 2020-06-16 | 中国地质调查局西安地质调查中心(西北地质科技创新中心) | Fluorite ore identification method and system based on remote sensing technology |
| CN112966570A (en) * | 2021-02-07 | 2021-06-15 | 山东锋士信息技术有限公司 | Reservoir water storage capacity metering method based on satellite remote sensing and DEM data |
| CN112966570B (en) * | 2021-02-07 | 2023-06-02 | 山东锋士信息技术有限公司 | Reservoir water storage capacity metering method based on satellite remote sensing and DEM data |
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