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

Abstract

The invention provides a method, a device and equipment for determining the mining influence distance of a power transmission tower. The method comprises the following steps: acquiring mining boundary coordinates in a mining influence area of a goaf and a comprehensive movement angle of a coal mining stratum in the mining influence area; according to the mining boundary coordinates and the stratum comprehensive movement angle, a mining influence plane equation is obtained; acquiring ground high-resolution digital elevation data in the mining influence area; according to the digital elevation data and the mining influence plane equation, obtaining a goaf mining influence range curve; acquiring position information of a target power transmission tower in the mining influence area; and obtaining the mining influence distance of the target power transmission tower according to the relationship between the position information and the mining influence range curve and the basic buried depth of the target power transmission tower. According to the scheme, the influence of terrain fluctuation can be considered, and the goaf mining influence distance under the accurate terrain is obtained.

Description

Technical Field

[0001] The present invention relates to the technical field of computer information technology processing, and particularly to a method, device, and equipment for determining the mining influence distance of a transmission tower. Background Art

[0002] When a transmission line passes through a coal mine mining area, due to geological disaster problems such as ground subsidence, deformation, ground collapse, and slope landslide caused by mining influence, as well as high economic losses caused by overlying coal resources, avoidance measures are often taken to place the tower outside the mining influence range of the goaf. During the design of the transmission line in the goaf area, it is necessary to calculate the mining influence distance of the goaf on the transmission tower. The existing calculation method is based on the calculation method of the protective coal pillar width in the "Technical Specification for Foundation Treatment of Buildings (Structures) in Coal Mine Goaf Areas".

[0003] However, this calculation method assumes the ground as a plane. In actual engineering design, the ground is a complex and variable terrain surface, and the undulating terrain has a great influence on the mining influence distance of the transmission tower. From a planar perspective, due to the influence of the terrain, the buried depth of the coal seam at each point of the mining boundary is different, so the mining influence range calculated by the formula is variable. Vertically, the terrain change outside the mining boundary has a great influence on the calculation of the mining influence range. When the terrain outside the mining boundary is high, the actual mining influence distance is larger than the calculated value; when the terrain outside the mining boundary is low, the actual mining influence distance is smaller than the calculated value. Therefore, the existing calculation method of the mining influence distance cannot be applied to the undulating terrain and cannot accurately estimate the mining influence distance under the undulating terrain. 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 a transmission tower, which can consider the influence of the undulating terrain and obtain the mining influence distance of the goaf under the accurate terrain.

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

[0006] A method for determining the mining influence distance of a transmission tower, comprising:

[0007] Obtaining the mining boundary coordinates within the mining influence area of the goaf and the comprehensive mining-induced movement angle of the coal seam mining strata within the mining influence area;

[0008] Determining the mining influence plane equation according to the mining boundary coordinates and the comprehensive mining-induced movement angle of the strata;

[0009] Obtaining the high-resolution digital elevation data of the ground within the mining influence area;

[0010] According to the digital elevation data and the plane equation of mining influence, the curve of the mining influence range of the goaf is obtained;

[0011] Obtain the position information of the target transmission tower within the mining influence area;

[0012] According to the relationship between the position information and the curve of the mining influence range, and the buried depth of the foundation of the target transmission tower, the mining influence distance of the target transmission tower is obtained.

[0013] Optionally, obtaining the mining boundary coordinates within the mining influence area of the goaf includes:

[0014] Obtain the mining boundary of the goaf on one side of the target transmission tower within the mining influence area of the goaf;

[0015] According to the foundation width of the target transmission tower, intercept a calculation boundary segment with a preset distance within the mining boundary;

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

[0017] Optionally, determining the plane equation of mining influence according to the mining boundary coordinates and the comprehensive strata movement angle includes:

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

[0019] Substitute the mining boundary coordinates into the basic expression to obtain a system of equations;

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

[0021] According to the system of equations and the cosine expression of the comprehensive strata movement angle, obtain the plane equation of mining influence.

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

[0023]

[0024] where, x 1 is the abscissa of the first endpoint of the calculation boundary segment, y 1 is the ordinate of the first endpoint of the calculation boundary segment, x 2 is the abscissa of the second endpoint of the calculation boundary segment, y 2 is the ordinate of the second endpoint of the calculation boundary segment, z 0 is the vertical axis coordinates of the first and second endpoints of the calculation boundary segment, and θ is the comprehensive strata movement angle.

[0025] Optionally, according to the digital elevation data and the mining influence plane equation, the mining influence range curve of the goaf is obtained, including:

[0026] Substitute the abscissa and ordinate of multiple points in the digital elevation data into the mining influence plane equation to obtain a result set of vertical axis calculation values;

[0027] Determine the difference between the result set of the vertical axis calculation values and the elevation set in the digital elevation data;

[0028] Determine the points with the difference less than the preset value as curve points;

[0029] Obtain the mining influence range curve of the goaf according to the curve points.

[0030] Optionally, according to the relationship between the position information and the mining influence range curve, and the foundation burial depth of the target transmission tower, the mining influence distance of the target transmission tower is obtained, including:

[0031] Obtain the preliminary mining influence distance according to the relationship between the position information of the target transmission tower and the mining influence range curve;

[0032] Obtain the up-pulling protection distance of the tower foundation according to the foundation burial depth of the target transmission tower;

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

[0034] Obtain the mining influence distance of the target transmission tower according to the sum of the preliminary mining influence distance, the up-pulling protection distance of the tower foundation and the safety protection distance.

[0035] Optionally, according to the foundation burial depth of the target transmission tower, the up-pulling protection distance of the tower foundation is obtained, including:

[0036] Determine the up-pulling angle of the tower foundation according to the foundation burial soil property of the target transmission tower;

[0037] Multiply the foundation burial depth by the tangent value of the up-pulling angle of the tower foundation to obtain the up-pulling protection distance of the tower foundation.

[0038] The present invention also provides a device for determining the mining influence distance of a transmission tower, including:

[0039] An acquisition module, configured to acquire the mining boundary coordinates within the mining influence area of the goaf and the comprehensive movement angle of the coal seam mining strata within the mining influence area;

[0040] A processing module, configured to obtain a mining influence plane equation according to the mining boundary coordinates and the comprehensive strata movement angle; acquire the ground high-resolution digital elevation data within the mining influence area; obtain the mining influence range curve of the goaf according to the digital elevation data and the mining influence plane equation; acquire the position information of the target transmission tower within the mining influence area; and obtain the mining influence distance of the target transmission tower according to the relationship between the position information and the mining influence range curve, and the foundation burial depth of the target transmission tower.

[0041] The present invention also provides a computing device, including: a processor and a memory storing a computer program. When the computer program is run by the processor, it executes the method as described above.

[0042] The present invention also provides a computer-readable storage medium storing instructions. When the instructions are run on a computer, the computer is caused to execute the method as described above.

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

[0044] In the above solution of the present invention, by acquiring the mining boundary coordinates within the mining influence area of the goaf and the comprehensive strata movement angle of the coal seam mining within the mining influence area; obtaining the mining influence plane equation according to the mining boundary coordinates and the comprehensive strata movement angle; acquiring the ground high-resolution digital elevation data within the mining influence area; obtaining the mining influence range curve of the goaf according to the digital elevation data and the mining influence plane equation; acquiring the position information of the target transmission tower within the mining influence area; and obtaining the mining influence distance of the target transmission tower according to the relationship between the position information and the mining influence range curve, and the foundation burial depth of the target transmission tower. The influence of the terrain undulation can be considered, and the mining influence distance of the goaf under the accurate terrain can be obtained. Description of the Drawings

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

[0046] Figure 2 is a cross-sectional view of the method for determining the mining influence distance of a transmission tower according to an embodiment of the present invention;

[0047] Figure 3 is a three-dimensional view of the method for determining the mining influence distance of a transmission tower according to an embodiment of the present invention;

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

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

[0050] Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present invention can be more thoroughly understood and the scope of the present invention can be completely conveyed to those skilled in the art.

[0051] As Figure 1 shown, an embodiment of the present invention provides a method for determining the mining influence distance of a transmission tower, including:

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

[0053] Here, the goaf refers to the goaf of a coal mine, which means the void or cavity left after the underground coal, coal gangue, etc. are mined out during the coal mine operation. The goaf of a coal mine will cause ground subsidence and collapse, and the forms of surface movement and deformation caused include surface movement basins, surface up-and-down dislocation, surface cracks, surface inclination, collapse pits, surface undulation, surface translation, etc. The mining influence area refers to the area where the geological conditions are affected by the goaf. The mining boundary coordinates refer to the boundary coordinates of the goaf near the line path that affects the layout of the transmission tower, and are generally obtained from the coal mine excavation engineering layout drawing. The comprehensive movement angle of the coal seam mining strata is generally obtained through measured data or empirical values, and the comprehensive movement angle of the coal seam mining strata is as Figure 2 and Figure 3 shown by the θ angle in

[0054] Step 12: Determine the mining influence plane equation according to the mining boundary coordinates and the comprehensive movement angle of the strata;

[0055] Here, the mining influence plane equation refers to the equation of a spatial plane that divides the mining influence area of the goaf. The mining influence plane refers to the inclined plane that forms a horizontal angle θ with the coal seam as shown in Figure 2 and Figure 3 The mining influence plane equation is a mathematical representation of the mining influence plane.

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

[0057] Here, the high-resolution digital elevation data of the ground refers to the high-resolution digital elevation of the ground in the goaf area where the target transmission tower is laid out, and can be obtained through unmanned aerial vehicle flight measurement.

[0058] Step 14: Obtain the mining influence range curve of the goaf according to the digital elevation data and the mining influence plane equation.

[0059] Here, the mining influence range curve refers to a curve formed by the intersection of the mining influence plane and the undulating surface topography as shown in Figure 3 . The target transmission tower should be arranged on the side of the mining influence range curve of the goaf away from the goaf.

[0060] Step 15: Obtain the position information of the target transmission tower within the mining influence area.

[0061] Step 16: Obtain the mining influence distance of the target transmission tower according to the relationship between the position information and the mining influence range curve, and the buried depth of the foundation of the target transmission tower.

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

[0063] In this embodiment, the influence of the undulating terrain and the up - pulling angle of the foundation of the target transmission tower is considered. According to the obtained mining boundary coordinates and the comprehensive strata movement angle, the mining influence plane equation is determined. Further, according to 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 influence of the actual terrain. According to this mining influence range curve of the goaf, combined with the influence of the transmission tower foundation, the mining influence distance of the target transmission tower can be obtained. Arranging the target transmission tower outside the range of this mining influence distance can ensure the construction safety of the target transmission tower and ensure that it is not affected by the coal mine goaf.

[0064] The method for determining the mining influence distance of the transmission tower in this embodiment fully considers the influence of the terrain and the up - pulling angle of the foundation of the target transmission tower. The main force on the transmission tower during operation is the up - pulling force. When designing and calculating, overcoming the up - pulling force relies on the conical soil mass around the tower foundation. When the foundation is subjected to the up - pulling force, the inclination angle of the conical soil mass that resists the up - pulling force is the up - pulling angle α. If the mining influence of coal mine mining enters the range of the up - pulling conical soil mass, the natural structure of the soil will be damaged, resulting in a decrease in the anti - pulling bearing capacity of the up - pulled foundation, which will affect the operation safety of the tower. Therefore, this calculation method considers the influence of the up - pulling angle of the tower foundation, making the mining influence distance of the transmission tower more in line with the actual situation and more accurate.

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

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

[0067] Step 112: Intercept a calculation boundary segment of a preset distance within the mining boundary according to the foundation width of the target transmission tower.

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

[0069] In this embodiment, a section of the mining boundary of the goaf that is relatively close to the line path of the target transmission tower is selected as the calculation mining boundary. According to the foundation width of the target transmission tower, 2 to 4 times the tower foundation width is intercepted within this calculation mining boundary as the calculation boundary segment. As Figure 3 shown, the straight line connected by P 1 and P 2 is the calculation boundary segment. P 1 and P 2 are used as the two endpoints of the calculation boundary segment, and their coordinates are the mining boundary coordinates. For gently inclined coal seams, the calculation boundary segment can be regarded as a horizontal coal seam, and the coal seam elevation adopts the average elevation Z 0 .

[0070] In an alternative 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 comprehensive strata movement angle.

[0074] Step 124: Obtain the mining influence plane equation according to the system of equations and the cosine expression of the comprehensive strata movement angle.

[0075] In this embodiment, the coordinates of the two ends of the calculated mining boundary segment are P 1 (x 1 ,y 1 ,z 0 ), P 2 (x 2 ,y 2 ,z 0 ), and the comprehensive strata movement angle θ (0 < θ < 90°). According to the principle of representing the spatial plane equation, assume that the mining influence plane equation is:

[0076] Ax + By + Cz + D = 0 ①

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

[0078] Substitute P 1 (x 1 , y 1 , z 0 ) and P 2 (x 2 , y 2 , z 0 ) into equation ①, and we get:

[0079] Ax 1 + By 1 + Cz 0 + D = 0 ②

[0080] Ax 2 + By 2 + Cz 0 + D = 0 ③

[0081] From the spatial geometric relationship, the normal vector of this plane and the normal vector of the xoy plane The included angle is θ, and the following equation can be obtained:

[0082]

[0083] From equation ② - ③, the following relationship can be obtained:

[0084] A(x 1 - x 2 ) + B(y 1 - y 2 ) = 0

[0085] After conversion, we get:

[0086]

[0087] Substitute ⑤ into ④, and we get:

[0088]

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

[0090] That is:

[0091]

[0092] Substitute equations ⑤, ⑥, and ⑦ into equation ①, and cancel out the like terms A, to obtain the plane equation of mining influence:

[0093]

[0094] Among them, x 1 is the abscissa for calculating the first endpoint of the boundary segment, and y 1 is the ordinate for calculating the first endpoint of the boundary segment, x 2 is the abscissa for calculating the second endpoint of the boundary segment, and y 2 is the ordinate for calculating the second endpoint of the boundary segment, z 0 is the vertical axis coordinate for calculating the first and second endpoints of the boundary segment, and θ is the comprehensive strata movement angle.

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

[0096] Step 141, substituting the abscissas and ordinates of multiple points in the digital elevation data into the mining influence plane equation to obtain a result set of vertical axis calculation values;

[0097] Step 142, determining the difference between the result set of vertical axis calculation values and the elevation set in the digital elevation data;

[0098] Step 143, determining the points with the difference less than the preset value as curve points;

[0099] Step 144, obtaining the mining influence range curve of the goaf according to 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 0.5 m. The digital elevation data is converted into an elevation data set M, and the elevation data set M is composed of data points, which can be expressed in the following format:

[0101]

[0102] Substitute the coordinates x and y of each point in the elevation data set M into the mining influence plane equation to obtain a result set of vertical axis calculation values Z{z 01 z 02 z 03 ……z 999 ……}, compare the result set of vertical axis calculation values Z with the elevation h of each point in the elevation data set M, calculate the difference E of each point, and let E = Z - h to obtain a difference set E{E 01 E 02 E 03 ……E 999……}. Screen out the ground terrain data points in E that are less than the preset value Es, and determine them as curve points. Es is preferably 0.5 m. The screened curve points form the boundary data point set S of the mining influence range. Connect the plane coordinates x and y in the S set to form the curve of the mining influence range of the goaf. The plane distance between this curve and the mining boundary is the calculated mining influence distance Ld considering the precise terrain influence.

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

[0104] Step 161, obtain the preliminary mining influence distance according to the relationship between the position information of the target transmission tower and the curve of the mining influence range;

[0105] Step 162, obtain the uplift protection distance of the tower foundation according to the foundation burial depth of the target transmission tower;

[0106] Step 163, obtain the safety protection distance of the target transmission tower;

[0107] Step 164, obtain the mining influence distance of the target transmission tower according to the sum of the preliminary mining influence distance, the uplift protection distance of the tower foundation, and the safety protection distance.

[0108] In this embodiment, as Figure 3 and Figure 4 shown, take the position of the target transmission tower as the starting point and draw a perpendicular line to the projection line of the mining boundary. The intersection point of the perpendicular line and the curve of the mining influence range is the minimum distance point where the target transmission tower should retreat under the influence of the coal mine goaf. The distance L d (which can also be denoted as Ld. In the present invention, L d is synonymous with Ld) is the preliminary mining influence distance under the influence of the precise 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 uplift angle of the tower foundation according to the foundation burial soil property of the target transmission tower; here, the uplift angle of the tower foundation is denoted as α, which can be taken as (2 / 3)β for cohesive soil and (4 / 5)β for sandy soil, and β is the internal friction angle of the soil mass.

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

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

[0113] Table 1. Safety protection distance

[0114]

[0115] According to the determined initial mining influence distance L d , the uprooting protection distance d of the tower foundation a and the safety protection distance d s , add the three to obtain the mining influence distance L of the target transmission tower. That is, the mining influence distance L of the target transmission tower can be expressed as L = L d + d s + d a .

[0116] The following uses a specific embodiment to further illustrate the implementation process of the above method:

[0117] Embodiment 1

[0118] Taking a certain mining area in a certain region as the background, and taking the transmission tower of the 500kV line within the mining influence range of the mining area as an example, the parameters of the goaf and the transmission tower are shown in Table 2 below:

[0119] Table 2. Parameters of the goaf and the transmission tower

[0120]

[0121] First, determine the mining influence calculation range based on the accurate terrain. This process can be implemented by a computer. After establishing the mining influence plane equation, substitute the surface aerial flight data (resolution 0.5m) into the mining influence plane equation, compare the calculated Z - value results with the aerial flight elevation data H, screen the elevation data points with a difference less than 0.5m, and connect them and project them onto the horizontal plane, which is the mining influence calculation range based on the accurate terrain.

[0122] The mining influence calculation range L d calculated by using the present invention based on the accurate terrain is 112m. This line is of 500kV voltage level, the safety protection distance ds is taken as 15m, the foundation soil is sandy soil, the friction angle β is 45°, the uprooting angle α of the tower foundation can be taken as (4 / 5)β, α is 36°, the buried depth D of the tower foundation is 4.5m, and the calculated uprooting protection distance d a of the tower foundation is 3.5m. Calculate the mining influence distance L of the transmission tower by the formula L = L d + d s + d a= 112 + 15 + 3.5 = 130.5 m. That is to say, the distance that the transmission tower of this 500 kV line designed in the mining area must avoid from the mined - out area mining boundary is 130.5 m.

[0123] In the above - mentioned embodiment of the present invention, the influence of terrain and the up - pulled soil body of the transmission tower foundation on the mining influence distance is considered. The evaluation result can more accurately reflect the actual situation of the mined - out area, can be quantitatively calculated, and is more easily applied to the design of transmission lines in mined - out area sites.

[0124] As Figure 5 shown, the embodiment of the present invention also provides a device 50 for determining the mining influence distance of a transmission tower, including:

[0125] An acquisition module 51, configured to acquire the mining boundary coordinates within the mining influence area of the mined - out area and the comprehensive mining - induced movement angle of the coal seam mining strata within the mining influence area;

[0126] A processing module 52, configured to determine the mining influence plane equation according to the mining boundary coordinates and the comprehensive strata movement angle; acquire the high - resolution digital elevation data of the ground within the mining influence area; obtain the mining influence range curve of the mined - out area according to the digital elevation data and the mining influence plane equation; acquire the position information of the target transmission tower within the mining influence area; and obtain the mining influence distance of the target transmission tower according to the relationship between the position information and the mining influence range curve and the buried depth of the foundation of the target transmission tower.

[0127] Optionally, acquiring the mining boundary coordinates within the mining influence area of the mined - out area includes:

[0128] Acquiring the mining boundary of the mined - out area on one side of the target transmission tower within the mining influence area of the mined - out area;

[0129] Intercepting a calculation boundary segment of a preset distance within the mining boundary according to the foundation width of the target transmission tower;

[0130] Acquiring the coordinates of the two endpoints of the calculation boundary segment to obtain the mining boundary coordinates.

[0131] Optionally, obtaining the mining influence plane equation according to the mining boundary coordinates and the comprehensive strata movement angle includes:

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

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

[0134] Obtaining the cosine expression of the comprehensive strata movement angle;

[0135] Determine the plane equation of mining influence according to the said system of equations and the cosine expression of the comprehensive strata movement angle.

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

[0137] where x 1 is the abscissa of the first endpoint of the calculation boundary segment, y 1 is the ordinate of the first endpoint of the calculation boundary segment, x 2 is the abscissa of the second endpoint of the calculation boundary segment, y 2 is the ordinate of the second endpoint of the calculation boundary segment, z 0 is the vertical axis coordinate of the first and second endpoints of the calculation boundary segment, and θ is the comprehensive strata movement angle.

[0138] Optionally, obtain the curve of the mining influence range of the goaf according to the said digital elevation data and the plane equation of mining influence, including:

[0139] Substitute the abscissas and ordinates of multiple points in the said digital elevation data into the plane equation of mining influence to obtain the result set of vertical axis calculation values;

[0140] Determine the difference between the result set of vertical axis calculation values and the elevation set in the digital elevation data;

[0141] Determine the points with the difference less than the preset value as curve points;

[0142] Obtain the curve of the mining influence range of the goaf according to the said curve points.

[0143] Optionally, obtain the mining influence distance of the target transmission tower according to the relationship between the said position information and the curve of the mining influence range, and the foundation burial depth of the target transmission tower, including:

[0144] Obtain the preliminary mining influence distance according to the relationship between the position information of the target transmission tower and the curve of the mining influence range;

[0145] Obtain the uprooting protection distance of the tower foundation according to the foundation burial depth of the target transmission tower;

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

[0147] Obtain the mining influence distance of the target transmission tower according to the sum of the preliminary mining influence distance, the uprooting protection distance of the tower foundation and the safety protection distance.

[0148] Optionally, obtain the uprooting protection distance of the tower foundation according to the foundation burial depth of the target transmission tower, including:

[0149] Determine the uprooting angle of the tower foundation according to the nature of the soil in which the foundation of the target transmission tower is buried;

[0150] Multiply the buried depth of the foundation by the tangent value of the uprooting angle of the tower foundation to obtain the uprooting protection distance of the tower foundation.

[0151] It should be noted that this device corresponds to the above method. All implementation manners in the above method embodiments are applicable to the embodiments of this device and can achieve the same technical effects.

[0152] An embodiment of the present invention further provides a computing device, including: a processor and a memory storing a computer program. When the computer program is run by the processor, it executes the method as described above. All implementation manners in the above method embodiments are applicable to this embodiment and can achieve the same technical effects.

[0153] An embodiment of the present invention further provides a computer-readable storage medium storing instructions. When the instructions are run on a computer, the computer is caused to execute the method as described above. All implementation manners in the above method embodiments are applicable to this embodiment and can achieve the same technical effects.

[0154] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraint conditions of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present invention.

[0155] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0156] In the embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of the devices or units can be in an electrical, mechanical, or other forms.

[0157] The unit described as a separation component may or may not be physically separated. The component shown as a unit may or may not be a physical unit, that is, it may be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0158] In addition, in each embodiment of the present invention, each functional unit may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0159] If the above-mentioned function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part 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 for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present invention. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical discs that can store program codes.

[0160] In addition, it should be noted that in the devices and methods of the present invention, obviously, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent solutions of the present invention. And, the steps of performing the above series of processes can naturally be executed in chronological order according to the described order, but it is not necessary to execute in chronological order. Some steps can be executed in parallel or independently of each other. For those of ordinary skill in the art, it is understood that all or any steps or components of the method and device of the present invention can be implemented in any computing device (including a processor, a storage medium, etc.) or a network of computing devices in the form of hardware, firmware, software, or a combination thereof, which can be achieved by those of ordinary skill in the art 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 well-known general-purpose device. Therefore, the object of the present invention can also be achieved only by providing a program product containing program code for implementing the method or device. That is to say, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. Obviously, the storage medium can be any well-known storage medium or any storage medium developed in the future. It should also be noted that in the device and method of the present invention, obviously, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent solutions of the present invention. And, the steps of performing the above series of processes can naturally be executed in chronological order according to the described order, but it is not necessary to be executed in chronological order. Some steps can be executed in parallel or independently of each other.

[0162] The above is the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A method for determining the impact distance of power transmission tower mining, characterized in that: include: Obtaining the mining boundary coordinates within the mining influence area of ​​the goaf, and the comprehensive movement angle of the coal seam mining strata within the mining influence area; Determining the mining impact plane equation according to the mining boundary coordinates and the comprehensive stratum movement angle; Acquire high-resolution digital elevation data of the ground within the mining-affected area; According to the digital elevation data and the mining influence plane equation, a mining influence range curve of the goaf is obtained; Acquire the location information of the target transmission tower in the mining impact area; According to the relationship between the position 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.

2. The method for determining the impact distance of power transmission tower mining according to claim 1, characterized in that: Obtain the mining boundary coordinates within the mining impact area of ​​the goaf, including: Obtain the mining boundary of the goaf on one side of the target transmission tower within the goaf mining impact area; According to the foundation width of the target transmission tower, a calculated boundary segment of a preset distance is intercepted within the mining boundary; The coordinates of the two end points of the calculated boundary segment are obtained 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: According to the mining boundary coordinates and the comprehensive stratum movement angle, the mining influence plane equation is determined, including: Obtain the basic expression of the space plane equation Ax+By+Cz+D=0, where A, B, C and D are constants; Substituting the mining boundary coordinates into the basic expression to obtain a system of equations; Obtaining a cosine expression of the comprehensive formation movement angle; According to the equation group and the cosine expression of the comprehensive formation movement angle, the mining influence plane equation is obtained.

4. The method for determining the impact distance of power transmission tower mining according to claim 3 is characterized in that: The mining influence plane equation is: Among them, x1 is the horizontal coordinate of the first endpoint of the calculated boundary segment, y1 is the vertical coordinate of the first endpoint of the calculated boundary segment, x2 is the horizontal coordinate of the second endpoint of the calculated boundary segment, y2 is the vertical coordinate of the second endpoint of the calculated boundary segment, z0 is the vertical axis coordinate of the first and second endpoints of the calculated boundary segment, and θ is the comprehensive movement angle of the formation.

5. The method for determining the impact distance of power transmission tower mining according to claim 1, characterized in that: According to the digital elevation data and the mining influence plane equation, the mining influence range curve of the goaf area is obtained, including: Substituting the horizontal coordinates and vertical coordinates of the plurality of points in the digital elevation data into the mining impact plane equation to obtain a result set of vertical axis calculation values; Determine the difference between the vertical axis calculation value result set and the elevation set in the digital elevation data; Determine the point where the difference is less than a preset value as a curve point; The goaf mining influence range curve is obtained according to the curve points.

6. The method for determining the impact distance of power transmission tower mining according to claim 1, characterized in that: According to the relationship between the position 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: According to the relationship between the target transmission tower location information and the mining impact range curve, a preliminary mining impact distance is obtained; According to the foundation burial depth of the target transmission tower, the tower foundation uplift protection distance is obtained; Obtain the safety protection distance of the target transmission tower; The mining impact distance of the target transmission tower is obtained according to the sum of the preliminary mining impact distance, the tower foundation uplift protection distance and the safety protection distance.

7. The method for determining the impact distance of power transmission tower mining according to claim 6, characterized in that: According to the foundation burial depth of the target transmission tower, the tower foundation uplift protection distance is obtained, including: Determine the pull-out angle of the tower foundation according to the soil properties of the foundation of the target transmission tower; The foundation burial depth is multiplied by the tangent value of the tower foundation uplift angle to obtain the tower foundation uplift protection distance.

8. A device for determining the impact distance of power transmission tower mining, characterized in that: include: An acquisition module, used to acquire the mining boundary coordinates within the mining influence area of ​​the goaf, and the comprehensive movement angle of the coal seam mining strata within the mining influence area; A processing module is used to obtain a mining influence plane equation based on the mining boundary coordinates and the comprehensive stratum movement angle; obtain high-resolution ground digital elevation data within the mining influence area; obtain a mining influence range curve of the goaf based on the digital elevation data and the mining influence plane equation; obtain the position 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 position information and the mining influence range curve and the foundation burial depth of the target transmission tower.

9. A computing device, characterized in that include: A processor and a memory storing a computer program, wherein when the computer program is executed by the processor, the method according to any one of claims 1 to 7 is performed.

10. A computer-readable storage medium, characterized in that: Instructions are stored, and when the instructions are executed on a computer, the computer is caused to execute the method according to any one of claims 1 to 7.

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