Power transmission line grounding wire construction technology based on digital model

Abstract

The invention discloses a power transmission line grounding wire construction process based on a digital model. The power transmission line grounding wire construction process specifically comprises the following steps: S1, sampling; s2, resistance measurement; s3, carrying out soil modification modeling; s4, sample analysis; s5, performing modification construction; the invention relates to the technical field of ground wire construction. According to the power transmission line grounding wire construction technology based on the digital model, deep soil sampling is carried out in a grounding wire construction area, sampling holes are obtained, an installation space is provided for a grounding embedded component, sampled soil is segmented to obtain a plurality of measurement samples, resistivity analysis is carried out on the measurement samples one by one, and the construction efficiency of the grounding wire is improved by establishing a digital modified model. According to the method, the corresponding filler ratio is adjusted by acquiring the resistivity of the measured samples at different depths, and the filler is mixed with the sampled soil to serve as the filler to fill and position the grounding embedded component, so that the damage degree to the soil environment is reduced, meanwhile, efficient construction of the grounding wire is achieved, and the protection effect of the grounding wire is effectively improved in a filler layered filling mode.

Description

Technical Field

[0001] The invention relates to the technical field of grounding wire construction, and in particular to a transmission line grounding wire construction process based on a digital model. Background Art

[0002] The tower grounding of the transmission line is one of the main measures for line lightning protection, and its reliability is of great significance to ensure the safe and stable operation of the power system. The grounding resistance refers to the grounding down conductor, grounding current dissipation resistance and contact resistance, which are used to ensure that the external lightning current enters the ground and insulate the line equipment, so as to reduce the tripping rate of the line due to lightning strikes, avoid the harm of step voltage to the human body and improve the operation reliability. Reducing the tower grounding resistance is the main measure to improve the lightning resistance level of the line and reduce the lightning tripping rate of the line.

[0003] When installing existing grounding wires, a large amount of earth needs to be excavated, which is very destructive to the ground soil environment, time-consuming and labor-intensive, and cannot adjust the corresponding resistivity for soil environments at different depths, resulting in the ground resistivity of the ground wire not being effectively reduced, affecting the grounding protection effect. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the present invention provides a transmission line grounding wire construction process based on a digital model, which solves the problems that the installation of the existing grounding wire is highly destructive to the ground soil environment, is time-consuming and labor-intensive, and cannot adjust the corresponding resistivity for the soil environment at different depths, thus affecting the grounding protection effect.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A transmission line grounding wire construction process based on a digital model, specifically comprising the following steps:

[0008] S1. Sampling: After selecting the grounding wire construction area, use a tubular soil sampler to sample soil at a set depth in the construction area to obtain sampled soil;

[0009] S2. Resistance measurement: Divide the sampled soil into several sections, obtain several measurement samples, and use the standard four-needle method to measure the resistivity of the measurement samples;

[0010] S3. Soil modification modeling: Establish a resistance regulator filling model corresponding to the soil type, obtain the ratio of the resistance regulator dosage required to reduce the resistivity of a fixed weight of soil to the target resistivity, and construct a digital modification model;

[0011] S4, sample analysis: analyzing the soil type of the measurement sample, selecting the amount of resistance regulator required to modify the corresponding measurement sample to the target resistivity from the digital modification model according to the resistivity corresponding to the measurement sample and the weight of the measurement sample, and obtaining the filler of the corresponding measurement sample;

[0012] S5. Modification construction: put the grounding embedded component into the sampling hole left by sampling in S1, plug it in and fix it, put a conductive gasket on the grounding embedded component, let the conductive gasket slide to the bottom of the sampling hole, put the filler corresponding to the lowest measurement sample in the sampling hole, put another conductive gasket on the grounding embedded component, let the conductive gasket slide above the filler, continue to fill the filler corresponding to the measurement sample adjacent to the lowest measurement sample, repeat the operation until the sampling hole is completely filled, and then weld the grounding wire to the grounding embedded component.

[0013] The present invention is further configured as follows: after selecting the grounding wire construction area in S1, an operation well is firstly dug on the ground, and then soil sampling is performed at the bottom of the operation well, wherein the soil sampling depth is set to at least 3m.

[0014] The present invention is further configured as follows: after obtaining the amount of the resistance adjuster in S4, the volume of the measured sample is obtained as the total volume, one twentieth of the weight of soil is weighed from the measured sample as the proportioning soil, one twentieth of the weight of the resistance adjuster is added to the proportioning soil, mixed evenly, and compacted at a pressure of 0.3 MPa, and then the current volume is obtained, and the proportion of the current volume in the total volume is calculated, and the weight of the proportioning soil and the amount of the resistance adjuster required to reach the total volume are obtained. After the proportioning soil and the resistance adjuster of the required weight are mixed evenly, the filler corresponding to the measured sample is obtained.

[0015] The present invention is further configured as follows: the method for obtaining the plurality of measurement samples in S2 includes:

[0016] A1. Visually inspect the sampled soil, perform preliminary segmentation on the sampled soil with obvious stratification, and obtain preliminary segmentation samples;

[0017] A2. When there is no obvious stratification in the sampled soil, divide the sampled soil into several measurement samples at an equal interval of 50 cm;

[0018] When there are more than one preliminary segmentation samples, the multiple preliminary segmentation samples are equally divided into three measurement samples.

[0019] The present invention is further configured as follows: when a plurality of measurement samples are segmented in S2, the plurality of measurement samples are marked in the order of the sampled soil from high to low.

[0020] The present invention is further configured as follows: the resistance regulator in S3 includes salt, charcoal, furnace ash, carbide slag and lime.

[0021] The present invention is further configured as follows: after the sampling hole is filled in S5, the soil in the operating well is excavated to remove large impurities, and three times the filler corresponding to the uppermost measurement sample is mixed and then filled in the operating well.

[0022] The present invention is further configured as follows: the grounding embedded component in S5 comprises a galvanized steel frustum base and a galvanized steel pipe, the galvanized steel pipe is welded and fixed to the top of the galvanized steel frustum base, the conductive gasket is made of galvanized steel, and the conductive gasket is sleeved and slidably installed on the outer periphery of the galvanized steel pipe;

[0023] The galvanized steel cone base is slidably installed inside the sampling hole, and the outer periphery of the conductive gasket is in sliding contact with the inner wall of the sampling hole. The grounding wire is welded and fixed on the top of the galvanized steel pipe.

[0024] (III) Beneficial effects

[0025] The present invention provides a transmission line grounding wire construction process based on a digital model, which has the following beneficial effects:

[0026] (1) The present invention performs deep soil sampling in the grounding wire construction area to obtain sampling holes, provides installation space for the grounding pre-buried components, divides the sampled soil to obtain a number of measurement samples and performs resistivity analysis on them one by one, obtains the filler ratio corresponding to the resistivity adjustment of the measurement samples at different depths by establishing a digital modification model, and uses the mixture with the sampled soil as the filler to fill and position the grounding pre-buried components, thereby reducing the degree of damage to the soil environment and achieving efficient construction of the grounding wire. In conjunction with the setting of the conductive gasket, the layered filling of the filler is achieved, ensuring the effective adjustment of the soil resistivity at different depths, providing effective protection for reducing the grounding wire loop resistance value, and thus effectively improving the protection effect of the grounding wire.

[0027] (2) The present invention can achieve a preliminary division of different types of sampled soil by segmenting the sampled soil at obvious stratification points, and by subsequent equidistant segmentation to obtain three measurement samples, it can provide reference comparison data for subsequent resistivity measurements, thereby providing a guarantee for the accuracy of the resistivity measurement results.

[0028] (3) The present invention ensures the stable assembly of the galvanized steel pipe through the coordination of the grounding embedded component and the sampling hole, and the galvanized steel cone base. The arrangement of a plurality of conductive gaskets can not only provide reliable protection for the layered filling of the filler, but also further ensure the stability of the installation of the galvanized steel pipe, and provide stable and reliable assembly conditions for the grounding wire. The arrangement of the operating well can effectively remove the surface loose soil, and effectively ensure the reduction of the soil resistivity around the grounding wire by removing large impurities and mixing them with the filler before backfilling the operating well, thereby providing long-term stable and reliable protection for the use of the grounding wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the process of the present invention;

[0030] Figure 2 It is a cross-sectional schematic diagram of the ground wire after installation of the present invention;

[0031] Figure 3 It is a schematic diagram of the structure of the operating well and the sampling hole of the present invention;

[0032] Figure 4 It is a schematic diagram of the structure of the grounding wire, the grounding embedded component and the conductive gasket of the present invention;

[0033] In the figure, 1. grounding wire; 2. grounding embedded component; 3. galvanized steel cone base; 4. galvanized steel pipe; 5. conductive gasket; 6. operating well; 7. sampling hole; 8. filler. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-4 , the embodiment of the present invention provides the following two technical solutions:

[0036] Embodiment 1

[0037] A transmission line grounding wire construction process based on a digital model specifically comprises the following steps:

[0038] S1. Sampling: After selecting the grounding wire construction area, first dig an operation well 6 on the ground, and then use a tubular soil sampler to sample soil at a set depth in the construction area, wherein the soil sampling depth is set to at least 3m to obtain sampled soil;

[0039] S2. Resistance measurement: Divide the sampled soil into several sections to obtain several measurement samples. Specifically, the method of obtaining several measurement samples includes:

[0040] A1. Visually inspect the sampled soil, perform preliminary segmentation on the sampled soil with obvious stratification, and obtain preliminary segmentation samples;

[0041] A2. When there is no obvious stratification in the sampled soil, divide the sampled soil into several measurement samples at an equal interval of 50 cm;

[0042] When there are more than one preliminary segmentation samples, the multiple preliminary segmentation samples are equally divided into three measurement samples;

[0043] When dividing several measurement samples, the several measurement samples are marked in the order of the sampled soil from high to low;

[0044] Use the standard four-needle method to measure the resistivity of the measurement sample. Specifically, place the measurement sample in an insulating basin, prepare four electrodes of equal length, and the electrodes are generally made of sharp and small conductive materials, such as steel needles. Evenly insert the four electrodes into the measurement sample, so that the four electrodes are kept at the same distance. Connect the current electrode and the voltage electrode to the corresponding test equipment. After ensuring that the connection is firm and correct, start the test equipment, record the current value and voltage difference, then change the electrode insertion point, and repeat the recording of the current value and voltage difference. According to the measured voltage difference and current value, use Ohm's law to calculate the resistivity of the soil, and take the average value of multiple sets of data as the final resistivity value;

[0045] S3. Soil modification modeling: Establish a resistance regulator filling model corresponding to the soil type, obtain the ratio of the resistance regulator dosage required to reduce the resistivity of a fixed weight of soil to the target resistivity, and construct a digital modification model:

[0046] B1. Under the same soil type, collect several modeling samples of standard weight, use the standard four-needle method to measure the resistivity of several modeling samples, divide the modeling samples with similar resistivity into one group, select one modeling sample, add a set weight of a resistance regulator to it, mix it evenly, and continue to measure the resistivity. If the resistivity is found to be reduced, continue to add the set weight of the same resistance regulator and repeat the resistivity measurement. Otherwise, replace the modeling sample and add another resistance regulator and repeat the test to obtain the resistance regulator corresponding to the standard weight modeling sample under the soil type and the amount of resistance regulator required to achieve the target resistivity;

[0047] B2. Select different soil types and repeat B1 operation to obtain the resistance adjuster corresponding to the standard weight modeling samples under different soil types, and the amount of resistance adjuster required to achieve the target resistivity;

[0048] B3, organize the test data in B1 and B2, and construct a digital modification model;

[0049] The resistance regulator includes salt, charcoal, ash, carbide slag and lime. For sandy soil, add salt and lime. For clay soil, add charcoal, ash and salt.

[0050] S4. Sample analysis: Analyze the soil type of the measurement sample, select the amount of resistance modifier required to modify the corresponding measurement sample to the target resistivity from the digital modification model according to the resistivity corresponding to the measurement sample and the weight of the measurement sample, and obtain the filler 8 of the corresponding measurement sample:

[0051] After obtaining the amount of resistance adjuster, obtain the measured sample volume as the total volume V 1 , weigh one twentieth of the weight of soil from the test sample as the proportion soil M 1 , add one twentieth of the weight of the resistance regulator M 2 Add to the proportioned soil, mix evenly, and compact at a pressure of 0.3 MPa to obtain the current volume V 2 , current volume V 2 Obtained from the measuring container, calculate the current volume V 2 In total volume V 1 The proportion in the middle is obtained to reach the total volume V 1 Required mix soil weight M 11 And the amount of resistance regulator M 22 :

[0052] M 11 =V 1 / V 2 *M 1

[0053] M 22 =V 1 / V 2 *M 2

[0054] The required weight of the soil M 11 and resistance adjuster M 22 After mixing evenly, obtain the filling corresponding to the measured sample:

[0055] S5, modification construction: put the galvanized steel cone base 3 into the sampling hole 7 left by sampling in S1, plug it in and fix it, and then put the filler 8 of the corresponding measurement sample in the reverse order of the measurement sample marking until the sampling hole 7 is completely filled, and then weld the grounding wire 1 to the top of the galvanized steel pipe 4.

[0056] After the sampling hole 7 is filled, the soil in the operating well 6 is excavated to remove large impurities, and three times the filling material corresponding to the top layer of measurement sample is mixed and then filled into the operating well 6.

[0057] As detailed in the attached Figure 2 and 4 As shown, the galvanized steel pipe 4 is welded and fixed to the top of the galvanized steel frustum base 3 to form a grounding embedded component 2.

[0058] Embodiment 2

[0059] This embodiment is an improvement of the previous embodiment, a transmission line grounding wire construction process based on a digital model, specifically comprising the following steps:

[0060] S1. Sampling: After selecting the grounding wire construction area, first dig an operation well 6 on the ground, and then use a tubular soil sampler to sample soil at a set depth in the construction area, wherein the soil sampling depth is set to at least 3m to obtain sampled soil;

[0061] S2. Resistance measurement: Divide the sampled soil into several sections to obtain several measurement samples. Specifically, the method of obtaining several measurement samples includes:

[0062] A1. Visually inspect the sampled soil, perform preliminary segmentation on the sampled soil with obvious stratification, and obtain preliminary segmentation samples;

[0063] A2. When there is no obvious stratification in the sampled soil, divide the sampled soil into several measurement samples at an equal interval of 50 cm;

[0064] When there are more than one preliminary segmentation samples, the multiple preliminary segmentation samples are equally divided into three measurement samples;

[0065] When dividing several measurement samples, the several measurement samples are marked in the order of the sampled soil from high to low;

[0066] Use the standard four-needle method to measure the resistivity of the measurement sample. Specifically, place the measurement sample in an insulating basin, prepare four electrodes of equal length, and the electrodes are generally made of sharp and small conductive materials, such as steel needles. Evenly insert the four electrodes into the measurement sample, so that the four electrodes are kept at the same distance. Connect the current electrode and the voltage electrode to the corresponding test equipment. After ensuring that the connection is firm and correct, start the test equipment, record the current value and voltage difference, then change the electrode insertion point, and repeat the recording of the current value and voltage difference. According to the measured voltage difference and current value, use Ohm's law to calculate the resistivity of the soil, and take the average value of multiple sets of data as the final resistivity value;

[0067] S3. Soil modification modeling: Establish a resistance regulator filling model corresponding to the soil type, obtain the ratio of the resistance regulator dosage required to reduce the resistivity of a fixed weight of soil to the target resistivity, and construct a digital modification model:

[0068] B1. Under the same soil type, collect several modeling samples of standard weight, use the standard four-needle method to measure the resistivity of several modeling samples, divide the modeling samples with similar resistivity into one group, select one modeling sample, add a set weight of a resistance regulator to it, mix it evenly, and continue to measure the resistivity. If the resistivity is found to be reduced, continue to add the set weight of the same resistance regulator and repeat the resistivity measurement. Otherwise, replace the modeling sample and add another resistance regulator and repeat the test to obtain the resistance regulator corresponding to the standard weight modeling sample under the soil type and the amount of resistance regulator required to achieve the target resistivity;

[0069] B2. Select different soil types and repeat B1 operation to obtain the resistance adjuster corresponding to the standard weight modeling samples under different soil types, and the amount of resistance adjuster required to achieve the target resistivity;

[0070] B3, organize the test data in B1 and B2, and construct a digital modification model;

[0071] The resistance regulator includes salt, charcoal, ash, carbide slag and lime. For sandy soil, add salt and lime. For clay soil, add charcoal, ash and salt.

[0072] S4. Sample analysis: Analyze the soil type of the measurement sample, select the amount of resistance modifier required to modify the corresponding measurement sample to the target resistivity from the digital modification model according to the resistivity corresponding to the measurement sample and the weight of the measurement sample, and obtain the filler 8 of the corresponding measurement sample:

[0073] After obtaining the amount of resistance adjuster, obtain the measured sample volume as the total volume V 1 , weigh one twentieth of the weight of soil from the test sample as the proportion soil M 1 , add one twentieth of the weight of the resistance regulator M 2 Add to the proportioned soil, mix evenly, and compact at a pressure of 0.3 MPa to obtain the current volume V 2 , current volume V 2 Obtained from the measuring container, calculate the current volume V 2 In total volume V 1 The proportion of the total volume V 1 Required mix soil weight M 11 And the amount of resistance regulator M 22 :

[0074] M 11 =V 1 / V 2 *M 1

[0075] M 22 =V 1 / V 2 *M 2

[0076] The required weight of the soil M 11 and resistance adjuster M 22 After uniform mixing, obtain the filling corresponding to the measurement sample;

[0077] S5, modification construction: put the galvanized steel frustum base 3 into the sampling hole 7 left by sampling in S1, plug and fix it, put a conductive gasket 5 on the galvanized steel pipe 4, the conductive gasket 5 slides along the galvanized steel pipe 4 and the inner wall of the sampling hole 7 to the bottom of the sampling hole 7, put the filler 8 corresponding to the measurement sample marked at the bottom of the sampling hole 7, put another conductive gasket 5 on the galvanized steel pipe 4, the conductive gasket 5 slides above the filler 8, continue to fill the filler 8 corresponding to the measurement sample adjacent to the measurement sample marked at the bottom, repeat the operation until the sampling hole 7 is completely filled, and then weld the grounding wire 1 to the galvanized steel pipe 4.

[0078] After the sampling hole 7 is filled, the operating well 6 is dug to remove large impurities and mixed with three times the filler 8 corresponding to the topmost measurement sample, and then filled in the operating well 6.

[0079] As a detailed description, the galvanized steel frustum base 3 and the galvanized steel pipe 4 together constitute the grounding embedded component 2, the galvanized steel pipe 4 is welded and fixed on the top of the galvanized steel frustum base 3, and the welding point is treated with anti-corrosion, the conductive gasket 5 is made of galvanized steel, and the conductive gasket 5 is sleeved and slidably installed on the outer periphery of the galvanized steel pipe 4, the galvanized steel frustum base 3 is slidably installed inside the sampling hole 7, and the outer periphery of the conductive gasket 5 is in sliding contact with the inner wall of the sampling hole 7, the grounding wire 1 is welded and fixed on the top of the galvanized steel pipe 4, and the welding point is also treated with anti-corrosion. Specifically, a welding socket is opened at the top of the galvanized steel pipe 4 to provide conditions for stable welding of the grounding wire 1.

[0080] The advantage of the second embodiment over the first embodiment is that the conductive gasket 5 is used to effectively isolate different fillers, thereby avoiding mutual interference between the fillers and providing a stable and reliable guarantee for the resistivity reduction adjustment of soils at different depths.

[0081] As an extended explanation, when the filler 8 is put into the sampling hole 7, after a portion of the filler 8 is put in, the filler 8 is pressed while maintaining a pressure of 0.3 MPa for 1 second.

[0082] In summary, the grounding wire construction process of the present invention not only has the advantage of fast construction, but also lies in that after the layered resistivity of the sampled soil is measured, the layered backfilling method after the sampled soil is mixed with the resistance regulator can be used to achieve the reduction and adjustment of the soil resistivity at different depths, thereby effectively ensuring the grounding protection effect of the grounding wire.

[0083] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0084] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A construction process for grounding wire of a power transmission line based on a digital model, characterized in that: The specific steps include: S1. Sampling: After selecting the grounding wire construction area, use a tubular soil sampler to sample soil at a set depth in the construction area to obtain sampled soil; S2. Resistance measurement: Divide the sampled soil into several sections, obtain several measurement samples, and use the standard four-needle method to measure the resistivity of the measurement samples; S3. Soil modification modeling: Establish a resistance regulator filling model corresponding to the soil type, obtain the ratio of the resistance regulator dosage required to reduce the resistivity of a fixed weight of soil to the target resistivity, and construct a digital modification model; S4, sample analysis: analyzing the soil type of the measurement sample, selecting the amount of resistance regulator required to modify the corresponding measurement sample to the target resistivity from the digital modification model according to the resistivity corresponding to the measurement sample and the weight of the measurement sample, and obtaining the filler of the corresponding measurement sample; S5. Modification construction: put the grounding embedded component into the sampling hole left by sampling in S1, plug it in and fix it, put a conductive gasket on the grounding embedded component, let the conductive gasket slide to the bottom of the sampling hole, put the filler corresponding to the lowest measurement sample in the sampling hole, put another conductive gasket on the grounding embedded component, let the conductive gasket slide above the filler, continue to fill the filler corresponding to the measurement sample adjacent to the lowest measurement sample, repeat the operation until the sampling hole is completely filled, and then weld the grounding wire to the grounding embedded component.

2. According to the digital model-based construction process for power transmission line grounding wire according to claim 1, it is characterized in that: After selecting the grounding wire construction area in S1, an operation well is firstly dug on the ground, and then soil sampling is performed at the bottom of the operation well, wherein the soil sampling depth is set to at least 3m.

3. According to the digital model-based construction process for power transmission line grounding wire according to claim 2, it is characterized in that: After obtaining the amount of resistance adjuster in S4, the volume of the measured sample is obtained as the total volume, one twentieth of the weight of soil is weighed from the measured sample as the proportioning soil, one twentieth of the weight of the resistance adjuster is added to the proportioning soil, mixed evenly, and compacted at a pressure of 0.3 MPa to obtain the current volume, calculate the proportion of the current volume in the total volume, obtain the weight of the proportioning soil and the amount of resistance adjuster required to reach the total volume, and after the required weight of the proportioning soil and the resistance adjuster are evenly mixed, obtain the filler corresponding to the measured sample.

4. The construction process of a power transmission line grounding wire based on a digital model according to claim 1, characterized in that: The method of obtaining the plurality of measurement samples in S2 includes: A1. Visually inspect the sampled soil, perform preliminary segmentation on the sampled soil with obvious stratification, and obtain preliminary segmentation samples; A2. When there is no obvious stratification in the sampled soil, divide the sampled soil into several measurement samples at an equal interval of 50 cm; When there are more than one preliminary segmentation samples, the multiple preliminary segmentation samples are equally divided into three measurement samples.

5. The construction process of a power transmission line grounding wire based on a digital model according to claim 1, characterized in that: When the plurality of measurement samples are segmented in S2, the plurality of measurement samples are marked in the order of the sampled soil from high to low.

6. The construction process of a power transmission line grounding wire based on a digital model according to claim 1, characterized in that: The resistance regulator in S3 includes salt, charcoal, ash, carbide slag and lime.

7. The construction process of a power transmission line grounding wire based on a digital model according to claim 1, characterized in that: After the sampling hole is filled in S5, the soil in the operating well is excavated to remove large impurities, and three times the filling material corresponding to the uppermost measurement sample is mixed and then filled in the operating well.

8. The construction process of a power transmission line grounding wire based on a digital model according to claim 1, characterized in that: The grounding embedded component in S5 includes a galvanized steel frustum base and a galvanized steel pipe, the galvanized steel pipe is welded and fixed on the top of the galvanized steel frustum base, the conductive gasket is made of galvanized steel, and the conductive gasket is sleeved and slidably installed on the outer periphery of the galvanized steel pipe; The galvanized steel cone base is slidably installed inside the sampling hole, and the outer periphery of the conductive gasket is in sliding contact with the inner wall of the sampling hole. The grounding wire is welded and fixed on the top of the galvanized steel pipe.

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