Method, device and equipment for determining mining influence distance of power transmission tower

Abstract

The application provides a method, device and equipment for determining a mining influence distance of a power transmission tower, which comprises the following steps: obtaining mining boundary coordinates in a mining influence area of a goaf and a comprehensive stratum movement angle of a coal seam mining stratum in the mining influence area; obtaining a mining influence plane equation according to the mining boundary coordinates and the comprehensive stratum movement angle; obtaining ground high-resolution digital elevation data in the mining influence area; obtaining a goaf mining influence range curve according to the digital elevation data and the mining influence plane equation; obtaining target power transmission tower position information in the mining influence area; and obtaining the mining influence distance of the target power transmission tower according to a relationship between the position information and the mining influence range curve and a foundation burial depth of the target power transmission tower. The scheme of the application can consider the influence of terrain ups and downs and obtain the mining influence distance of the goaf under the accurate terrain.

Description

Technical Field

[0001] This invention relates to the field of computer information technology processing, and in particular to a method, apparatus and equipment for determining the impact distance of mining on power transmission towers. Background Technology

[0002] Transmission lines traversing coal mining areas often face geological hazards such as ground subsidence and deformation caused by mining activities, leading to landslides and slope collapses, as well as significant economic losses due to the overburdening of coal resources. Therefore, avoidance measures are frequently implemented, placing transmission towers outside the mining-affected areas of the goaf. The design of transmission lines in goaf areas requires calculating the distance of the goaf's impact on the transmission towers. Current calculation methods rely on the calculation of the protective coal pillar width according to the "Technical Specification for Foundation Treatment of Buildings (Structures) in Coal Mine Goaf Areas."

[0003] However, this calculation method assumes the ground is flat, while actual engineering design involves complex and varied terrain. The undulating terrain significantly impacts the mining-induced impact distance of transmission towers. From a planar perspective, due to the terrain, the coal seam depth varies at each point along the mining boundary, thus the calculated mining-induced impact range is variable. Vertically, the terrain changes outside the mining boundary greatly affect the calculation of the mining-induced impact range. High terrain outside the mining boundary results in a larger actual mining-induced impact distance than the calculated value, while low terrain results in a smaller actual mining-induced impact distance than the calculated value. Therefore, existing methods for calculating mining-induced impact distance are not applicable to undulating terrain and cannot accurately predict the mining-induced impact distance under undulating terrain conditions. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a method, device and equipment for determining the mining influence distance of power transmission towers, which can take into account the influence of terrain undulations and obtain the mining influence distance of mined-out areas under accurate terrain.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0006] A method for determining the impact distance of mining on transmission towers, comprising:

[0007] Obtain the coordinates of the mining boundary within the mining-affected area of ​​the goaf, and the comprehensive movement angle of the coal seam strata within the mining-affected area;

[0008] Based on the mining boundary coordinates and the comprehensive stratum movement angle, the mining influence plane equation is determined;

[0009] Obtain high-resolution digital elevation data of the ground within the area affected by the mining activity;

[0010] Based on the digital elevation data and the mining impact plane equation, the mining impact range curve of the goaf is obtained;

[0011] Obtain the location information of the target transmission tower within the area affected by the mining;

[0012] Based on the relationship between the location information and the mining impact range curve, as well as the foundation burial depth of the target transmission tower, the mining impact distance of the target transmission tower is obtained.

[0013] Optionally, obtain the coordinates of the mining boundary within the mining-affected area of ​​the goaf, including:

[0014] Obtain the mining boundary of the goaf on one side of the target power transmission tower within the area affected by mining in the goaf;

[0015] Based on the foundation width of the target transmission tower, a calculated boundary segment of a preset distance is selected within the mining boundary;

[0016] Obtain the coordinates of the two endpoints of the calculated boundary segment to obtain the mining boundary coordinates.

[0017] Optionally, based on the mining boundary coordinates and the overall formation movement angle, the mining influence plane equation is determined, including:

[0018] Obtain the basic expression for the equation of the spatial plane: Ax + By + Cz + D = 0, where A, B, C, and D are constants;

[0019] Substituting the mining boundary coordinates into the basic expression yields a system of equations;

[0020] Obtain the cosine expression of the overall movement angle of the strata;

[0021] Based on the set of equations and the cosine expression of the combined stratum movement angle, the plane equation of mining influence is obtained.

[0022] Optionally, the equation of the influence plane of the mining is:

[0023]

[0024] Where x1 is the x-coordinate of the first endpoint of the calculation boundary segment, y1 is the y-coordinate of the first endpoint of the calculation boundary segment, x2 is the x-coordinate of the second endpoint of the calculation boundary segment, y2 is the y-coordinate of the second endpoint of the calculation boundary segment, z0 is the vertical axis coordinate of the first and second endpoints of the calculation boundary segment, and θ is the comprehensive stratum movement angle.

[0025] Optionally, based on the digital elevation data and the mining impact plane equation, the mining impact range curve of the goaf is obtained, including:

[0026] Substitute the x and y coordinates of multiple points in the digital elevation data into the mining influence plane equation to obtain a set of vertical axis calculation results.

[0027] Determine the difference between the calculated vertical axis values ​​and the elevation set in the digital elevation data;

[0028] Points whose differences are less than a preset value are identified as curve points;

[0029] The curve of the range of influence of mining in the goaf is obtained based on the curve points.

[0030] Optionally, based on the relationship between the location information and the mining impact range curve, and the foundation burial depth of the target transmission tower, the mining impact distance of the target transmission tower is obtained, including:

[0031] Based on the relationship between the target transmission tower location information and the mining impact range curve, the preliminary mining impact distance is obtained;

[0032] Based on the foundation burial depth of the target transmission tower, the tower foundation pull-out protection distance is obtained;

[0033] Obtain the safe protection distance of the target power transmission tower;

[0034] The mining impact distance of the target transmission tower is obtained by summing the preliminary mining impact distance, the tower foundation uplift protection distance, and the safety protection distance.

[0035] Optionally, based on the foundation burial depth of the target transmission tower, the tower foundation pull-out protection distance is obtained, including:

[0036] The elevation angle of the tower foundation is determined based on the properties of the soil in which the target transmission tower is buried.

[0037] Multiply the foundation burial depth by the tangent of the uplift angle of the tower foundation to obtain the uplift protection distance of the tower foundation.

[0038] The present invention also provides a device for determining the impact distance of mining on transmission towers, comprising:

[0039] The acquisition module is used to acquire the coordinates of the mining boundary within the mining-affected area of ​​the goaf, and the comprehensive movement angle of the coal seam mining strata within the mining-affected area.

[0040] The processing module is used to obtain the mining impact plane equation based on the mining boundary coordinates and the comprehensive stratum movement angle; acquire high-resolution digital elevation data of the ground within the mining impact area; obtain the mining impact range curve of the goaf based on the digital elevation data and the mining impact plane equation; acquire the location information of the target transmission tower within the mining impact area; and obtain the mining impact distance of the target transmission tower based on the relationship between the location information and the mining impact range curve, as well as the foundation burial depth of the target transmission tower.

[0041] The present invention also provides a computing device, comprising: a processor and a memory storing a computer program, wherein the computer program, when executed by the processor, performs the method described above.

[0042] The present invention also provides a computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the method described above.

[0043] The above-described solution of the present invention has at least the following beneficial effects:

[0044] The above-described solution of the present invention obtains the coordinates of the mining boundary within the mining-affected area of ​​the goaf and the comprehensive stratum movement angle of coal seam mining within the mining-affected area; obtains the mining-affected plane equation based on the mining boundary coordinates and the comprehensive stratum movement angle; obtains high-resolution digital elevation data of the ground within the mining-affected area; obtains the goaf mining-affected range curve based on the digital elevation data and the mining-affected plane equation; obtains the location information of the target transmission tower within the mining-affected area; and obtains the mining-affected distance of the target transmission tower based on the relationship between the location information and the mining-affected range curve, and the foundation burial depth of the target transmission tower. The influence of terrain undulations can be considered to obtain the goaf mining-affected distance under precise terrain conditions. Attached Figure Description

[0045] Figure 1 This is a flowchart illustrating the method for determining the impact distance of power transmission tower mining according to an embodiment of the present invention;

[0046] Figure 2 This is a cross-sectional schematic diagram of the method for determining the impact distance of power transmission tower mining according to an embodiment of the present invention;

[0047] Figure 3 This is a three-dimensional schematic diagram of the method for determining the impact distance of power transmission tower mining according to an embodiment of the present invention;

[0048] Figure 4 This is a plan view of the method for determining the impact distance of power transmission tower mining according to an embodiment of the present invention;

[0049] Figure 5This is a structural diagram of the device for determining the distance of influence of power transmission tower mining according to an embodiment of the present invention. Detailed Implementation

[0050] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0051] like Figure 1 As shown, an embodiment of the present invention proposes a method for determining the impact distance of mining on transmission towers, including:

[0052] Step 11: Obtain the coordinates of the mining boundary within the mining-affected area of ​​the goaf, and the comprehensive movement angle of the coal seam mining strata within the mining-affected area;

[0053] Here, the term "mining goaf" refers to a coal mine goaf, which is the void or cavity left after underground coal or gangue is mined during coal mining operations. Coal mine goafs can cause ground subsidence and collapse, resulting in surface movement and deformation in various forms, including surface movement basins, vertical displacement, surface cracks, surface tilting, subsidence pits, surface undulations, and surface translation. The mining-affected area refers to the region where geological conditions change due to the influence of the mining goaf. The mining boundary coordinates refer to the boundary coordinates of the mining goaf near the transmission line path affecting the layout of power transmission towers, generally obtained from coal mine mining engineering layout maps. The comprehensive stratum movement angle of coal seam mining is generally obtained through measured data or empirical values, such as... Figure 2 and Figure 3 As shown by angle θ.

[0054] Step 12: Determine the mining influence plane equation based on the mining boundary coordinates and the comprehensive stratum movement angle;

[0055] Here, the mining-induced influence plane equation refers to the equation of a spatial plane that divides the mining-induced influence area of ​​the goaf. The mining-induced influence plane refers to... Figure 2 and Figure 3 In the middle, there is an inclined plane that forms a horizontal angle θ with the coal seam. The equation of the mining influence plane is a mathematical representation of the mining influence plane.

[0056] Step 13: Obtain high-resolution digital elevation data of the ground within the area affected by the mining activity;

[0057] Here, the high-resolution digital elevation data refers to the high-resolution digital elevation of the ground in the goaf area where the target power transmission tower is located, which can be obtained through aerial surveying by UAVs.

[0058] Step 14: Based on the digital elevation data and the mining impact plane equation, obtain the mining impact range curve of the goaf.

[0059] Here, the curve representing the impact range of mining activities refers to... Figure 3 As shown, this is a curve formed by the intersection of the mining-affected area plane and the undulating terrain. The target transmission tower should be located on the side of the mining-affected area curve furthest from the goaf.

[0060] Step 15: Obtain the location information of the target transmission tower within the area affected by the mining.

[0061] Step 16: Based on the relationship between the location information and the mining impact range curve, and the foundation burial depth of the target transmission tower, obtain the mining impact distance of the target transmission tower.

[0062] Here, the foundation burial depth refers to the depth of the foundation of the target transmission tower buried below the ground surface, which is generally obtained through design documents. The mining impact distance refers to the range of impact that ore mining has on the surrounding environment during mining activities. This distance is affected by a variety of factors, including mining parameters, mining distance, and mining depth.

[0063] In this embodiment, the influence of undulating terrain and the angle of elevation on the target transmission tower foundation are considered. Based on the obtained mining boundary coordinates and the comprehensive stratum movement angle, the mining influence plane equation is determined. Further, based on the obtained digital elevation data, the digital elevation data is substituted into the mining influence plane equation to obtain the mining influence range curve of the goaf under the actual terrain influence. Based on this goaf mining influence range curve, combined with the influence of the transmission tower foundation, the mining influence distance of the target transmission tower can be obtained. Placing the target transmission tower outside this mining influence distance ensures the construction safety of the target transmission tower and guarantees it is not affected by the coal mine goaf.

[0064] The method for determining the mining impact distance of transmission towers in this embodiment fully considers the influence of terrain and the uplift angle of the target transmission tower foundation. During operation, the transmission tower is primarily subjected to uplift force. In design calculations, this uplift force is overcome by the conical soil mass surrounding the tower foundation. When the foundation is subjected to uplift force, the inclination angle of the conical soil mass resisting the uplift force is the uplift angle α. If the mining impact enters the range of the uplift conical soil mass, it will damage the natural structure of the soil, causing a decrease in the uplift bearing capacity of the foundation, which will affect the operational safety of the tower. Therefore, this calculation method considers the influence of the uplift angle of the tower foundation, making the mining impact distance of the transmission tower more realistic and accurate.

[0065] In an optional embodiment of the present invention, step 11 may include:

[0066] Step 111: Obtain the mining boundary of the goaf on one side of the target power transmission tower within the goaf impact area;

[0067] Step 112: Based on the foundation width of the target transmission tower, a calculated boundary segment of a preset distance is cut within the mining boundary;

[0068] Step 113: Obtain the coordinates of the two endpoints of the calculated boundary segment to obtain the mining boundary coordinates.

[0069] In this embodiment, a section of the boundary closest to the target transmission tower's path is selected as the calculated mining boundary. Based on the foundation width of the target transmission tower, a section of 2 to 4 times the tower foundation width is cut within this calculated mining boundary as the calculation boundary segment. For example... Figure 3 As shown, the straight line connecting P1 and P2 is the calculation boundary segment. P1 and P2 are the two endpoints of the calculation boundary segment, and their coordinates are the mining boundary coordinates. For gently dipping coal seams, the calculation boundary segment can be regarded as a horizontal coal seam, and the coal seam elevation is the average elevation Z0 of the calculation boundary segment.

[0070] In an optional embodiment of the present invention, step 12 may include:

[0071] Step 121: Obtain the basic expression of the spatial plane equation: Ax + By + Cz + D = 0, where A, B, C, and D are constants;

[0072] Step 122: Substitute the mining boundary coordinates into the basic expression to obtain a system of equations;

[0073] Step 123: Obtain the cosine expression of the overall stratum movement angle;

[0074] Step 124: Based on the set of equations and the cosine expression of the combined stratum movement angle, obtain the mining influence plane equation.

[0075] In this embodiment, considering the coordinates P1(x1,y1,z0) and P2(x2,y2,z0) at both ends of the mining boundary section and the comprehensive stratum movement angle θ (0<θ<90°), based on the principle of spatial plane equation representation, the mining influence plane equation is assumed to be:

[0076] Ax + By + Cz + D = 0 ①

[0077] The normal vector of the plane The coordinates are (A, B, C) (C > 0);

[0078] Substituting P1(x1,y1,z0) and P2(x2,y2,z0) into equation ①, we get:

[0079] Ax1 + By1 + Cz0 + D = 0 ②

[0080] Ax² + By² + Cz₀ + D = 0 ③

[0081] According to spatial geometric relations, the normal vector of this plane is... Normal vector of the xoy plane With the included angle being θ, we can obtain the following equation:

[0082]

[0083] From equations ② and ③, we can obtain the following relationships:

[0084] A(x1-x2)+B(y1-y2)=0

[0085] The result of the conversion is:

[0086]

[0087] Substituting ⑤ into ④, we get:

[0088]

[0089] Substituting equations ⑤ and ⑥ into equation ②, we get:

[0090] Right now:

[0091]

[0092] Substituting equations ⑤, ⑥, and ⑦ into equation ① and canceling out like terms A, we obtain the equation for the plane of influence of the mining activity:

[0093]

[0094] Where x1 is the x-coordinate of the first endpoint of the calculation boundary segment, y1 is the y-coordinate of the first endpoint of the calculation boundary segment, x2 is the x-coordinate of the second endpoint of the calculation boundary segment, y2 is the y-coordinate of the second endpoint of the calculation boundary segment, z0 is the vertical axis coordinate of the first and second endpoints of the calculation boundary segment, and θ is the comprehensive stratum movement angle.

[0095] In an optional embodiment of the present invention, step 14 may include:

[0096] Step 141: Substitute the abscissa and ordinate of multiple points in the digital elevation data into the mining influence plane equation to obtain the vertical axis calculation result set;

[0097] Step 142: Determine the difference between the calculated vertical axis value set and the elevation set in the digital elevation data;

[0098] Step 143: Determine the points where the difference is less than a preset value as curve points;

[0099] Step 144: Obtain the goaf impact range curve based on the curve points.

[0100] In this embodiment, the coordinate information of multiple points in the digital elevation data is obtained. Preferably, the resolution of the digital elevation data is less than 0.5m. The digital elevation data is converted into an elevation dataset M, which consists of data points and can be represented in the following format:

[0101]

[0102] Substituting the x and y coordinates of each point in the elevation dataset M into the equation of the mining influence plane, we obtain the vertical axis calculation result set Z{z 01 z 02 z 03 ...z 999 ...}, compare the vertical axis calculation result set Z with the elevation h of each point in the elevation dataset M, calculate the difference E for each point, and let E = Zh to obtain the difference set E{E 01 E 02 E 03 ...E 999 ...}. Ground topographic data points in E that are smaller than the preset value Es are selected and identified as curve points. The preferred value for Es is 0.5m. The selected curve points form the boundary data point set S of the mining impact range. Connecting the x and y coordinates in set S forms the mining impact range curve of the goaf. The planar distance between this curve and the mining boundary is the mining impact calculation distance Ld, which takes into account the precise topographic influence.

[0103] In an optional embodiment of the present invention, step 16 may include:

[0104] Step 161: Based on the relationship between the target transmission tower location information and the mining impact range curve, obtain the preliminary mining impact distance;

[0105] Step 162: Based on the foundation burial depth of the target transmission tower, obtain the tower foundation pull-out protection distance;

[0106] Step 163: Obtain the safe protection distance of the target transmission tower;

[0107] Step 164: Based on the sum of the preliminary mining impact distance, the tower foundation uplift protection distance, and the safety protection distance, the mining impact distance of the target transmission tower is obtained.

[0108] In this embodiment, as Figure 3 and Figure 4As shown, a perpendicular line is drawn from the location of the target transmission tower to the projection line of the mining boundary. The intersection of this perpendicular line and the curve of the mining impact range is the minimum distance at which the target transmission tower should be set back due to the influence of the coal mine goaf. The distance L from this minimum distance point to the mining boundary is... d (It can also be denoted as Ld, in this invention L) d (Synonymous with Ld) refers to the initial mining influence distance under the precise influence of terrain.

[0109] Obtain the foundation burial depth of the target transmission tower and determine the uplift protection distance d. a Specifically, step 162 may include:

[0110] Step 1621: Determine the elevation angle of the tower foundation based on the soil properties buried in the foundation of the target transmission tower; here, the elevation angle of the tower foundation is denoted as α, which can be (2 / 3)β for cohesive soil and (4 / 5)β for sandy soil, where β is the internal friction angle of the soil.

[0111] Step 1622: Multiply the foundation burial depth by the tangent of the uplift angle of the tower foundation to obtain the uplift protection distance of the tower foundation. Let D be the foundation burial depth, then the uplift protection distance of the tower foundation can be expressed as d. a =Dtanα.

[0112] Further obtain the safe protection distance d of the target transmission tower. s The relationship between the voltage level of the target transmission tower and the transmission line voltage level is shown in Table 1 below:

[0113] Table 1, Safety Protection Distance

[0114]

[0115] Based on the determined preliminary mining impact distance L d d, the protection distance for the tower foundation a and safety protection distance d s Adding these three factors together yields the target transmission tower's impact distance L. That is, the target transmission tower's impact distance L can be expressed as L = L d +d s +d a .

[0116] The implementation process of the above method will be further explained below with a specific embodiment:

[0117] Example 1,

[0118] Taking a mining area in a certain region as an example, and focusing on a 500kV transmission tower within the mining area's impact zone, the parameters of the goaf and the transmission tower are shown in Table 2 below:

[0119] Table 2. Parameters of goaf and power transmission towers

[0120]

[0121] First, determine the calculation range of mining impact based on precise topography. This process can be implemented using a computer. After establishing the mining impact plane equation, input the surface aerial flight data (0.5m resolution) into the mining impact plane equation, compare the calculated Z-value with the aerial flight elevation data H, select elevation data points with a difference of less than 0.5m, connect them, and project them onto the horizontal plane. This is the calculation range of mining impact based on precise topography.

[0122] The calculation range L of mining impact based on precise terrain obtained using this invention d The line is 112m long and has a voltage level of 500kV. The safety protection distance ds is taken as 15m. The foundation soil is sandy soil with a friction angle β of 45°. The uplift angle α on the tower foundation can be taken as (4 / 5)β, and α is 36°. The foundation depth D is 4.5m. The calculated uplift protection distance d on the tower foundation is... a The value is 3.5m. The formula for calculating the impact distance L of the transmission tower is L = L d +d s +d a =112+15+3.5=130.5m. That is to say, the 500kV transmission tower designed within the mining area must avoid the mining boundary of the goaf by a distance of 130.5m.

[0123] The above embodiments of the present invention take into account the influence of terrain and the soil removed from the foundation of the transmission tower on the distance of mining impact. The evaluation results are more able to reflect the actual situation of the goaf, can be quantitatively calculated, and are more easily applied to the design of transmission lines in goaf sites.

[0124] like Figure 5 As shown, an embodiment of the present invention also provides a device 50 for determining the impact distance of mining on transmission towers, comprising:

[0125] The acquisition module 51 is used to acquire the coordinates of the mining boundary within the mining-affected area of ​​the goaf, and the comprehensive movement angle of the coal seam mining strata within the mining-affected area.

[0126] The processing module 52 is used to determine the mining influence plane equation based on the mining boundary coordinates and the comprehensive stratum movement angle; acquire high-resolution digital elevation data of the ground within the mining influence area; obtain the mining influence range curve of the goaf based on the digital elevation data and the mining influence plane equation; acquire the location information of the target transmission tower within the mining influence area; and obtain the mining influence distance of the target transmission tower based on the relationship between the location information and the mining influence range curve, as well as the foundation burial depth of the target transmission tower.

[0127] Optionally, obtain the coordinates of the mining boundary within the mining-affected area of ​​the goaf, including:

[0128] Obtain the mining boundary of the goaf on one side of the target power transmission tower within the area affected by mining in the goaf;

[0129] Based on the foundation width of the target transmission tower, a calculated boundary segment of a preset distance is selected within the mining boundary;

[0130] Obtain the coordinates of the two endpoints of the calculated boundary segment to obtain the mining boundary coordinates.

[0131] Optionally, based on the mining boundary coordinates and the comprehensive formation movement angle, the mining influence plane equation is obtained, including:

[0132] Obtain the basic expression for the equation of the spatial plane: Ax + By + Cz + D = 0, where A, B, C, and D are constants;

[0133] Substituting the mining boundary coordinates into the basic expression yields a system of equations;

[0134] Obtain the cosine expression of the overall movement angle of the strata;

[0135] Based on the aforementioned set of equations and the cosine expression of the combined stratum movement angle, the equations for the mining influence plane are determined.

[0136] Optionally, the equation of the influence plane of the mining is:

[0137] Where x1 is the x-coordinate of the first endpoint of the calculation boundary segment, y1 is the y-coordinate of the first endpoint of the calculation boundary segment, x2 is the x-coordinate of the second endpoint of the calculation boundary segment, y2 is the y-coordinate of the second endpoint of the calculation boundary segment, z0 is the vertical axis coordinate of the first and second endpoints of the calculation boundary segment, and θ is the comprehensive stratum movement angle.

[0138] Optionally, based on the digital elevation data and the mining impact plane equation, the mining impact range curve of the goaf is obtained, including:

[0139] Substitute the x and y coordinates of multiple points in the digital elevation data into the mining influence plane equation to obtain a set of vertical axis calculation results.

[0140] Determine the difference between the calculated vertical axis values ​​and the elevation set in the digital elevation data;

[0141] Points whose differences are less than a preset value are identified as curve points;

[0142] The curve of the range of influence of mining in the goaf is obtained based on the curve points.

[0143] Optionally, based on the relationship between the location information and the mining impact range curve, and the foundation burial depth of the target transmission tower, the mining impact distance of the target transmission tower is obtained, including:

[0144] Based on the relationship between the target transmission tower location information and the mining impact range curve, the preliminary mining impact distance is obtained;

[0145] Based on the foundation burial depth of the target transmission tower, the tower foundation pull-out protection distance is obtained;

[0146] Obtain the safe protection distance of the target power transmission tower;

[0147] The mining impact distance of the target transmission tower is obtained by summing the preliminary mining impact distance, the tower foundation uplift protection distance, and the safety protection distance.

[0148] Optionally, based on the foundation burial depth of the target transmission tower, the tower foundation pull-out protection distance is obtained, including:

[0149] The elevation angle of the tower foundation is determined based on the properties of the soil in which the target transmission tower is buried.

[0150] Multiply the foundation burial depth by the tangent of the uplift angle of the tower foundation to obtain the uplift protection distance of the tower foundation.

[0151] It should be noted that this device is the same as the method described above. All implementations in the above method embodiments are applicable to the embodiments of this device and can achieve the same technical effect.

[0152] Embodiments of the present invention also provide a computing device, including: a processor and a memory storing a computer program, wherein the computer program, when executed by the processor, performs the method as described above. All implementations in the above method embodiments are applicable to this embodiment and can achieve the same technical effects.

[0153] Embodiments of the present invention also provide a computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the method described above. All implementations in the above method embodiments are applicable to this embodiment and can achieve the same technical effects.

[0154] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0155] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0156] In the embodiments provided by this invention, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0157] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0158] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0159] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, essentially, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0160] Furthermore, it should be noted that in the apparatus and method of the present invention, it is obvious that the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered equivalent solutions of the present invention. Moreover, the steps performing the above-described series of processes can naturally be executed in the order described, but are not necessarily required to be executed in chronological order; some steps can be executed in parallel or independently of each other. Those skilled in the art will understand that all or any step or component of the method and apparatus of the present invention can be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or a combination thereof. This is something that those skilled in the art can achieve by using their basic programming skills after reading the description of the present invention.

[0161] Therefore, the object of the present invention can also be achieved by running a program or a set of programs on any computing device. The computing device can be a known general-purpose device. Therefore, the object of the present invention can also be achieved simply by providing a program product containing program code implementing the method or apparatus. That is, such a program product also constitutes the present invention, and the storage medium storing such a program product also constitutes the present invention. Obviously, the storage medium can be any known storage medium or any storage medium developed in the future. It should also be noted that in the apparatus and method of the present invention, it is obvious that the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered equivalent to the present invention. Furthermore, the steps performing the above series of processes can naturally be performed in the order described, but are not necessarily required to be performed in chronological order. Some steps can be performed in parallel or independently of each other.

[0162] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for determining the impact distance of mining on transmission towers, characterized in that, include: Obtain the coordinates of the mining boundary within the mining-affected area of ​​the goaf, and the comprehensive movement angle of the coal seam strata within the mining-affected area; Based on the mining boundary coordinates and the comprehensive stratum movement angle, the mining influence plane equation is determined; Obtain high-resolution digital elevation data of the ground within the area affected by the mining activity; Based on the digital elevation data and the mining impact plane equation, the mining impact range curve of the goaf is obtained; Obtain the location information of the target transmission tower within the area affected by the mining; Based on the relationship between the location information and the mining impact range curve, and the foundation burial depth of the target transmission tower, the mining impact distance of the target transmission tower is obtained; The mining influence plane equation is determined based on the mining boundary coordinates and the comprehensive stratum movement angle, including: Obtaining the basic expression of the equation of a space plane Where A, B, C, and D are constants; Substituting the mining boundary coordinates into the basic expression yields a system of equations; Obtain the cosine expression of the overall movement angle of the strata; Based on the aforementioned set of equations and the cosine expression for the combined stratum movement angle, the equation for the mining-induced influence plane is obtained; The equation for the plane effect of mining is: Where x1 is the x-coordinate of the first endpoint of the calculation boundary segment, y1 is the y-coordinate of the first endpoint of the calculation boundary segment, x2 is the x-coordinate of the second endpoint of the calculation boundary segment, y2 is the y-coordinate of the second endpoint of the calculation boundary segment, z0 is the vertical axis coordinate of the first and second endpoints of the calculation boundary segment, and θ is the comprehensive stratum movement angle.

2. The method for determining the impact distance of mining on transmission towers according to claim 1, characterized in that, Obtain the coordinates of the mining boundary within the mining-affected area of ​​the goaf, including: Obtain the mining boundary of the goaf on one side of the target power transmission tower within the area affected by mining in the goaf; Based on the foundation width of the target transmission tower, a calculated boundary segment of a preset distance is selected within the mining boundary; Obtain the coordinates of the two endpoints of the calculated boundary segment to obtain the mining boundary coordinates.

3. The method for determining the impact distance of power transmission tower mining according to claim 1, characterized in that, Based on the digital elevation data and the mining impact plane equation, the mining impact range curve of the goaf is obtained, including: Substitute the x and y coordinates of multiple points in the digital elevation data into the mining influence plane equation to obtain a set of vertical axis calculation results. Determine the difference between the calculated vertical axis values ​​and the elevation set in the digital elevation data; Points whose differences are less than a preset value are identified as curve points; The curve of the range of influence of mining in the goaf is obtained based on the curve points.

4. The method for determining the impact distance of mining on transmission towers according to claim 1, characterized in that, Based on the relationship between the location information and the mining impact range curve, and the foundation burial depth of the target transmission tower, the mining impact distance of the target transmission tower is obtained, including: Based on the relationship between the target transmission tower location information and the mining impact range curve, the preliminary mining impact distance is obtained; Based on the foundation burial depth of the target transmission tower, the tower foundation pull-out protection distance is obtained; Obtain the safe protection distance of the target power transmission tower; The mining impact distance of the target transmission tower is obtained by summing the preliminary mining impact distance, the tower foundation uplift protection distance, and the safety protection distance.

5. The method for determining the impact distance of mining on transmission towers according to claim 4, characterized in that, Based on the foundation burial depth of the target transmission tower, the tower foundation pull-out protection distance is obtained, including: The elevation angle of the tower foundation is determined based on the properties of the soil in which the target transmission tower is buried. Multiply the foundation burial depth by the tangent of the uplift angle of the tower foundation to obtain the uplift protection distance of the tower foundation.

6. A device for determining the impact distance of mining on transmission towers, characterized in that, include: The acquisition module is used to acquire the coordinates of the mining boundary within the mining-affected area of ​​the goaf, and the comprehensive movement angle of the coal seam mining strata within the mining-affected area. The processing module is used to obtain the mining impact plane equation based on the mining boundary coordinates and the comprehensive stratum movement angle; acquire high-resolution digital elevation data of the ground within the mining impact area; obtain the mining impact range curve of the goaf based on the digital elevation data and the mining impact plane equation; acquire the location information of the target transmission tower within the mining impact area; and obtain the mining impact distance of the target transmission tower based on the relationship between the location information and the mining impact range curve, and the foundation burial depth of the target transmission tower. The mining influence plane equation is determined based on the mining boundary coordinates and the comprehensive stratum movement angle, including: Obtaining the basic expression of the equation of a space plane Where A, B, C, and D are constants; Substituting the mining boundary coordinates into the basic expression yields a system of equations; Obtain the cosine expression of the overall movement angle of the strata; Based on the aforementioned set of equations and the cosine expression for the combined stratum movement angle, the equation for the mining-induced influence plane is obtained; The equation for the plane effect of mining is: Where x1 is the x-coordinate of the first endpoint of the calculation boundary segment, y1 is the y-coordinate of the first endpoint of the calculation boundary segment, x2 is the x-coordinate of the second endpoint of the calculation boundary segment, y2 is the y-coordinate of the second endpoint of the calculation boundary segment, z0 is the vertical axis coordinate of the first and second endpoints of the calculation boundary segment, and θ is the comprehensive stratum movement angle.

7. A computing device, characterized in that, include: A processor, a memory storing a computer program, wherein the computer program, when executed by the processor, performs the method as described in any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that, A storage instruction that, when executed on a computer, causes the computer to perform the method as described in any one of claims 1 to 5.

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