CN113791122B - Device and method for measuring resistivity of pile foundation grounding leakage flow packet filler of tower - Google Patents
Device and method for measuring resistivity of pile foundation grounding leakage flow packet filler of tower Download PDFInfo
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- CN113791122B CN113791122B CN202111088558.6A CN202111088558A CN113791122B CN 113791122 B CN113791122 B CN 113791122B CN 202111088558 A CN202111088558 A CN 202111088558A CN 113791122 B CN113791122 B CN 113791122B
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- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
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Abstract
The invention discloses a tower pile foundation grounding leakage current package filler resistivity measuring device and a measuring method, wherein the measuring device comprises a filling device for filling graphite powder into a stirring disc, a discharge barrel is arranged in the filling device, the graphite powder is intermittently provided into the stirring disc through rotation of the discharge barrel, a feeding device for filling bentonite into the stirring disc is arranged at the rear end of the filling device, a discharging disc is arranged in the feeding device, bentonite is uniformly filled into the stirring disc in batches, a detecting device for detecting resistivity is arranged at the lower end of the feeding device, a material breaking plate is arranged in the detecting device, when materials in the detecting device are enough, the detecting device is blocked, the materials in the detecting device are compressed, a detecting plug is arranged at the side edge of the detecting device, and resistance measurement is performed after the detecting plug is electrified. According to the invention, the leakage package filling matrix is pressed by the automatic mixing proportion and the resistance value of the matrix is measured, so that the matrix filler integrated pressing die and measurement can be realized, the use is convenient, and the measurement accuracy is high.
Description
Technical Field
The invention relates to the technical field of resistance-reducing material measurement of grounding resistance of a grounding network of a power system, in particular to a device and a method for measuring the resistivity of a tower pile foundation grounding leakage package filler.
Technical Field
The grounding device of the power system tower is the grounding fault protection device of the most basic of the power transmission line, and the good grounding network can effectively protect the power transmission line from bearing heavy current faults such as lightning protection, overvoltage protection during operation, power frequency short circuit grounding and the like, and is basic equipment for guaranteeing safe and stable operation of the power transmission line of the power system.
Because the grounding resistance of the grounding grid of the power transmission line tower mainly depends on the condition of the soil buried by the grounding conductor, and the terrains, the landforms and the geological environments of different regions are quite different, the grounding resistance of the power transmission line tower is difficult to be reduced to below 10 omega under the condition of most dry or sand soil, and in recent years, an operation and maintenance unit is generally required to reduce the grounding resistance of the power transmission line tower to below 7 omega in a power system, so that a large amount of auxiliary resistance reducing materials are required to be adopted by a conventional grounding material to reduce the grounding resistance to a standard limit value.
In recent years, the electric power system grounding field emerges a plurality of auxiliary resistance reducing materials, such as a grounding module and a resistance reducing agent, and when the two kinds of the grounding resistance reducing materials are used, a plurality of technical restrictions are usually generated: the former is easy to break and break, while the latter is easy to continuously run off along with the flushing of rainwater and underground water, thereby losing the resistance reducing effect. In order to solve the defects of the conventional grounding auxiliary resistance-reducing materials, the operation and maintenance units of the power transmission lines of the conventional power system begin to adopt a flexible leakage flow bag to replace the conventional grounding module and resistance-reducing agent, the outer layer of the material is a metal net or a graphite woven net, the appearance is a bag with one end sealed, the inner filling material is a mixture of graphite powder, bentonite, an adhesive, short carbon fiber and other matrix fillers, and the auxiliary resistance-reducing leakage flow bag overcomes the defects of the conventional grounding module and resistance-reducing agent and is more in application in the grounding field of the towers of the conventional power transmission lines.
In actual engineering, the specific resistance of the conductor matrix filler is the most main technical parameter for measuring the actual resistance-reducing effect of the grounding resistance-reducing leakage package, and an accurate measuring device for the specific resistance of the matrix filler mixed medium is often lacking in the preparation, test and field sampling inspection processes of the grounding leakage package, so that the grounding leakage package produced by an actual manufacturer is often lower in conductivity, and an actual electric power enterprise user also lacks necessary detection equipment for the novel auxiliary resistance-reducing leakage package. According to the invention, according to actual engineering requirements in preparation and test work of the grounding resistance-reducing leakage package, the leakage package filling matrix is pressed through the automatic mixing proportion and the resistance value of the matrix is measured, and the device can realize integrated pressing and measurement of the grounding resistance-reducing leakage package matrix filler, thereby greatly facilitating production and measurement of the grounding resistance-reducing leakage package, being convenient to use, accurate to measure and wide in application prospect.
Disclosure of Invention
The invention aims to solve the technical problem that aiming at the defects in the prior art, the invention provides a function capable of automatically mixing the mixture to perform lamination and resistance measurement, and solves the problem that the resistance cannot be accurately adjusted in the prior art.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a tower pile foundation grounding bleeder package packing resistivity measuring device, includes filling device, and filling device upper end is provided with feed arrangement, and the feed arrangement lower extreme is provided with detection device, filling device include the base, the base side be provided with the curb plate, the curb plate on be provided with intermittent type discharge mechanism, discharge mechanism lower extreme be provided with incessant pushing equipment; the feeding device comprises a fixed column, a stirring hopper is arranged on the side edge of the fixed column, and a stirring filling mechanism is arranged at the lower end of the stirring hopper; the detecting device comprises a compression shell, wherein the upper end of the compression shell is provided with a stirring disc, a stirring column is arranged in the stirring disc, the upper end of the stirring column is provided with a motor II, the lower end of the stirring disc is provided with a compression mechanism, and the mixture is automatically mixed and proportioned through an intermittent discharging mechanism and a stirring filling mechanism.
Further, intermittent type discharge mechanism including installing motor one on the curb plate, motor one front end is provided with the play storage vat, play storage vat be provided with the storage vat outward, play storage vat upper end and install the feedwell, play storage vat front end be provided with gear one, gear one front end is provided with gear two, gear two upper ends be provided with gear three, gear three and gear two meshing, gear three rear end be provided with gear four, it is fixed to make the discharge of every turn graphite powder.
Further, incessant pushing equipment include slidable mounting push away the material rack on the curb plate, the base on be provided with and push away the hopper, push away material rack slidable mounting on pushing away the hopper, push away material rack front end be provided with and push away the flitch, push away the flitch and slide on pushing away the hopper, directly will promote graphite powder and mix when graphite powder is poured, improved work efficiency.
Further, the discharge barrel is provided with a leak hole, and the pushing rack is provided with a rack which is meshed with the first gear.
Further, stirring filling mechanism including installing the hopper at stirring fill lower extreme, the inside discharge plate that is provided with of hopper, the discharge plate outside be provided with the gear nine, gear nine upper end is provided with the gear eight, gear eight front end is provided with the stirring wheel, the stirring wheel install inside the stirring fill, gear eight rear end be provided with the gear seven, gear seven upper end is provided with gear six, gear six and gear seven meshing, gear six rear end be provided with out the ball, be provided with gear five on the play ball, the discharge ball install in the feeding bucket, gear five and gear four meshing make the feed quantity of bentonite at every turn fixed.
Further, compression mechanism include the broken flitch of slidable mounting in compression shell, broken flitch rear end be provided with extrusion spring, extrusion spring lower extreme be provided with compression rack, compression shell side be provided with the detection plug, compression shell lower extreme be provided with the top movable plate, top movable plate lower extreme rotate and be provided with the top movable rod, top movable plate lower extreme be provided with the top movable rack, top movable rack slidable mounting on the base, top movable rod one end rotate and install on the top movable plate, top movable rod other end rotate and install on the top movable rack, top movable rack side install the gear eleven, gear eleven side install the gear ten, through top movable plate, broken flitch and compression shell with the mixture pressfitting 6 shape solids.
Further, the lower end of the compression rack is provided with a rack, the rear end of the compression rack is provided with a hydraulic cylinder, and the upper rack of the compression rack is meshed with the gear.
Further, the compression shell on be provided with the compression hole, the compression hole be disconnected flitch slidable mounting position, disconnected flitch rear end be provided with extrusion spring.
The invention also provides a measuring method of the tower pile foundation grounding leakage current packing resistivity measuring device, which comprises the following steps:
s1, respectively placing materials to be mixed in a feed bin and a stirring hopper;
s2, after the mixture is extruded and molded in the detection device, electrifying the detection plug;
s3, calculating the resistance by detecting the current passing through the plugs on two sides.
Compared with the prior art, the invention has the beneficial effects that: (1) The device for measuring the resistivity of the ground resistance-reducing leakage flow package matrix filler realizes that the filler is mixed automatically to perform lamination resistance measurement, effectively simulates the effect after field landfill, and has quick output result and effective data; (2) The device for measuring the filling resistivity of the ground resistance-reducing leakage flow package matrix adopts a mechanical linkage design, saves energy, is easy to maintain and replace, has long service life and low failure rate and high efficiency; (3) According to the device for measuring the matrix packing resistivity of the ground resistance-reducing leakage flow packet, disclosed by the invention, the brittleness of the produced resistance-reducing leakage flow packet is reduced through the detection device, and the device is convenient to transport and construct.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the packing device of the present invention.
Fig. 3 is a partial schematic view of the filling device of the present invention.
FIG. 4 is a schematic view of the feeding device of the present invention.
FIG. 5 is a schematic view of a portion of a feed device according to the present invention.
FIG. 6 is a schematic diagram of the structure of the detecting device of the present invention.
FIG. 7 is a schematic view of a portion of a detection apparatus according to the present invention.
FIG. 8 is a schematic diagram of a portion of a detection apparatus according to the present invention.
Reference numerals: 1-a filling device; 2-a feeding device; 3-a detection device; 101-a base; 102-side plates; 103-a feed bin; 104-a storage barrel; 105-discharging barrel; 106-motor one; 107-gear one; 108-a second gear; 109-gear three; 110-gear four; 111-pushing hopper; 112-pushing racks; 113-pushing plates; 201-fixing the column; 202-a stirring hopper; 203-hopper; 204-discharging hopper; 205-discharging balls; 206-gear five; 207-gear six; 208-gear seven; 209-gear eight; 210-gear nine; 211-stirring wheels; 212-a discharge tray; 301-stirring disc; 302-motor two; 303-a stirring column; 304-a compression housing; 305-compression holes; 306-compressing racks; 307-gear ten; 308-pushing the rack; 309-a jack lever; 310-gear eleven; 311, a blanking plate; 312-detecting the plug; 313-top plate; 314-compression springs.
Detailed Description
In the following description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
In the following description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "disposed," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The invention will be further described with reference to the drawings and exemplary embodiments, wherein the exemplary embodiments and descriptions of the invention are for purposes of illustration and not for limitation. Further, if detailed description of the known art is not necessary to illustrate the features of the present invention, it will be omitted.
Examples: referring to a tower pile foundation grounding leakage current package packing resistivity measuring device shown in fig. 1, the device comprises a packing device 1 for packing graphite powder into a stirring disc in a uniform proportion, a feeding device 2 for packing bentonite into the stirring disc in a uniform proportion is arranged at the rear end of the packing device 1, and a detection device 3 for detecting resistivity is arranged at the lower end of the feeding device 2.
Referring to fig. 2 and 3, the filling device 1 includes a first motor 106, the first motor 106 drives a discharge barrel 105 to rotate, a leak hole is formed in the discharge barrel 105 to place graphite powder leaked from a feed barrel 103 into a pushing hopper 111, the discharge barrel 105 is mounted on a base 101, the discharge barrel 105 drives a first gear 107 and a second gear 108 to rotate simultaneously, a third gear 109 and the second gear 108 are mounted on a side plate 102 in a rotating manner, the side plate 102 is mounted on the base 101, a pushing rack 112 is arranged at the lower end of the first gear 107, the first gear 107 drives the pushing rack 112 to slide, the pushing rack 112 drives a pushing plate 113 to slide on the pushing hopper 111, the pushing plate 113 pushes graphite powder on the pushing hopper 111 out, the pushing hopper 111 is mounted on the base 101, the pushing plate 113 is mounted at the front end of the pushing rack 112, the second gear 108 drives the third gear 109 and the fourth gear 110 to rotate, the fourth gear 110 and the third gear 109 are mounted on the side plate 102 in a coaxial manner, a storage barrel 104 is mounted on the outer side of the discharge barrel 105, the discharging barrel 105 rotates in the storage barrel 104, the pushing plate 113 drives the pushing plate 113 to slide on the pushing hopper 111, and the pushing plate 113 slides on the pushing plate 111.
Referring to the feeding device 2 shown in fig. 4 and 5, the feeding device 2 comprises a discharge ball 205, the discharge ball 205 drives a gear five 206 and a gear six 207 to rotate, the gear five 206 and the gear six 207 are installed on the discharge ball 205, the gear five 206 is meshed with the gear four 110, the gear six 207 drives a gear seven 208 and a gear eight 209 to rotate, the gear seven 208 is coaxially connected with the gear eight 209, the gear eight 209 is installed on the stirring hopper 202, the stirring hopper 202 is installed on a fixed column 201, the fixed column 201 is installed on a base 101, a hopper 203 is arranged at the lower end of the stirring hopper 202, a discharge hopper 204 is arranged at the lower end of the hopper 203, the gear eight 209 drives a stirring wheel 211 to rotate, the stirring wheel 211 is fixedly installed on the gear eight 209, the gear eight 209 drives the stirring wheel 211 to rotate to stir bentonite, a discharge disc 212 is arranged on a gear nine 210, the discharge disc 212 rotates in the hopper 203, when the discharge disc 212 is attached to the stirring hopper 202, the bentonite in the discharge disc 212 enters the discharge disc 212, when the discharge disc 212 is attached to the stirring hopper 204, the discharge disc 212 is placed in the discharge disc 204, the amount of the bentonite 205 is evenly proportioned, the output of the bentonite is guaranteed to be not proportioned, and the graphite powder is stably mixed with the graphite powder 205, and the graphite powder is simultaneously, and the powder is simultaneously is mixed with the bentonite powder, and the graphite powder is stably, and the powder is mixed when the output in the discharge ball 205 is guaranteed.
Referring to fig. 6, 7 and 8, the detecting device 3 includes a stirring disk 301, the stirring disk 301 is fixedly installed on the base 101, a motor two 302 is provided at the upper end of the stirring disk 301, a stirring column 303 is provided at the lower end of the motor two 302, the motor two 302 drives the stirring column 303 to rotate, the stirring column 303 stirs the substances in the stirring disk 301, a compression housing 304 is provided at the lower end of the stirring disk 301, a blanking plate 311 for blocking the stirring disk 301 is slidingly provided on the compression housing 304, a compression spring 314 is provided at the rear end of the blanking plate 311, a compression rack 306 is provided at the lower end of the compression spring 314, a rack and a hydraulic cylinder are provided on the compression rack 306, the rack on the compression rack 306 is meshed with a gear ten 307, a gear eleven 310 is provided at the side of the gear ten 307 and rotatably installed on the base 101, the compression rack 306 is driven by the hydraulic cylinder to rotate a driving lever 309 and the gear eleven 310, when the gear eleven 310 rotates, the top movable rack 308 is driven to move, the top movable rack 308 is slidably mounted on the base 101, the top movable rack 308 drives the top movable rod 309 and the top movable plate 313 to move, the top movable plate 313 is slidably mounted in the compression shell 304, one end of the top movable rod 309 is rotationally connected with the top movable plate 313, the other end of the gear eight 209 is connected with the top movable rack 308, after the top movable plate 313 extrudes the bentonite and graphite powder mixture, the detection plug 312 is electrified, the detection plug 312 is mounted on two sides of the compression shell 304, the detection resistor is detected after the detection plug 312 is electrified, the stirring column 303 stirs the graphite powder and the bentonite mixture, so that the graphite powder and the bentonite are fully mixed, materials in a finished product are uniformly distributed, the stability of the finished product is improved, when the detection plug 312 is inside the finished product, the detection data of the finished product resistor are stable and effective, and the detection efficiency is improved.
In an embodiment, a measuring method of a tower pile foundation grounding leakage current packing resistivity measuring device comprises the following steps:
s1, respectively placing materials to be mixed in the feed bin 103 and the stirring hopper 202.
S2, after the mixture is extruded in the detecting device 3, the detecting plug 312 is energized.
And S3, calculating the resistance by passing the current through the two-side detection plug 312.
Working principle: when the invention starts to work, graphite powder is placed in the feeding barrel 103, bentonite is placed in the stirring hopper 202, the first motor 106 is started, the first motor 106 drives the discharging barrel 105 to rotate in the storage barrel 104, the discharging barrel 105 drives the first gear 107 and the second gear 108 to rotate, the first gear 107 drives the pushing rack 112 and the pushing plate 113 to slide on the pushing hopper 111, graphite in the pushing hopper 111 is pushed into the stirring disc 301, the second co-worker gear 108 drives the third gear 109 to rotate, the fourth gear 110 drives the fourth gear 110 to rotate, the fifth gear 206 drives the discharging ball 205 to rotate in the feeding barrel 103, graphite is placed on the pushing hopper 111 when the discharging ball 205 is attached to the discharging barrel 105, the sixth gear 207 drives the sixth gear 207 to rotate, the seventh gear 208 drives the eighth gear 209 to rotate, the eighth gear 209 drives the stirring wheel 211 to rotate in the stirring hopper 202, the stirring wheel 211 stirs the bentonite in the stirring hopper 202, the discharge plate 212 is driven to rotate in the hopper 203 when the gear eight 209 rotates, the bentonite is carried out when the hopper 203 is attached to the stirring hopper 202, the bentonite is carried into the stirring plate 301 through the discharge hopper 204, the motor two 302 drives the stirring column 303 to rotate, the stirring column 303 stirs the bentonite and the graphite in the stirring plate 301, the stirred mixture of the bentonite and the graphite falls into the compression shell 304, the compression rack 306 moves through the hydraulic cylinder, when the compression rack 306 moves, the material breaking plate 311 is driven to slide in the compression shell 304, the lower end of the stirring plate 301 is blocked by the material breaking plate 311, the mixture of the bentonite and the graphite is stopped to be put into the compression shell 304, when the compression rack 306 moves, the compression rack 306 drives the gear ten 307 and the gear eleven 310 to rotate, the gear eleven 310 drives the top rack 308 to move, the top moving rack 308 drives the top moving rod 309 to move, the top moving rod 309 drives the top moving plate 313 to lift in the compression shell 304 to squeeze the mixture of bentonite and graphite, so that the bentonite and the graphite become six-sided blocks, the detection plug 312 on the side edge of the compression shell 304 is electrified after extrusion molding, and the detection plug 312 is arranged in the mixture of bentonite and graphite at the moment, and then resistance detection is carried out on the mixture of bentonite and graphite. Therefore, the invention can realize the integrated compression molding and measurement of the matrix filler by pressing the drainage pack filling matrix and measuring the resistance value of the matrix through the automatic mixing proportion, and has high measurement accuracy, simple and convenient operation method and wide application prospect.
The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the present invention without inventive labor, as those skilled in the art will recognize from the above-described concepts.
Claims (4)
1. The utility model provides a shaft tower pile foundation ground connection bleeder packet packing resistivity measuring device, is provided with feed arrangement (2) including packing device (1), upper end, and feed arrangement (2) lower extreme is provided with detection device (3), its characterized in that: the filling device (1) comprises a base (101), a side plate (102) is arranged on the side edge of the base (101), an intermittent discharging mechanism is arranged on the side plate (102), and an uninterrupted pushing mechanism is arranged at the lower end of the discharging mechanism; the feeding device (2) comprises a fixed column (201), a stirring hopper (202) is arranged on the side edge of the fixed column (201), and a stirring filling mechanism is arranged at the lower end of the stirring hopper (202); the detection device (3) comprises a compression shell (304), wherein a stirring disc (301) is arranged at the upper end of the compression shell (304), a stirring column (303) is arranged in the stirring disc (301), a motor II (302) is arranged at the upper end of the stirring column (303), and a compression mechanism is arranged at the lower end of the stirring disc (301);
the intermittent discharging mechanism comprises a first motor (106) arranged on the side plate (102), a discharging barrel (105) is arranged at the front end of the first motor (106), a storage barrel (104) is arranged outside the discharging barrel (105), a feeding barrel (103) is arranged at the upper end of the discharging barrel (105), a first gear (107) is arranged at the front end of the discharging barrel (105), a second gear (108) is arranged at the front end of the first gear (107), a third gear (109) is arranged at the upper end of the second gear (108), the third gear (109) is meshed with the second gear (108), and a fourth gear (110) is arranged at the rear end of the third gear (109);
the uninterrupted pushing mechanism comprises a pushing rack (112) which is slidably mounted on the side plate (102), a pushing hopper (111) is arranged on the base (101), the pushing rack (112) is slidably mounted on the pushing hopper (111), a pushing plate (113) is arranged at the front end of the pushing rack (112), and the pushing plate (113) slides on the pushing hopper (111);
the stirring and filling mechanism comprises a hopper (203) arranged at the lower end of a stirring hopper (202), a discharging disc (212) is arranged in the hopper (203), a gear nine (210) is arranged on the outer side of the discharging disc (212), a gear eight (209) is arranged at the upper end of the gear nine (210), a stirring wheel (211) is arranged at the front end of the gear eight (209), the stirring wheel (211) is arranged in the stirring hopper (202), a gear seven (208) is arranged at the rear end of the gear eight (209), a gear six (207) is arranged at the upper end of the gear seven (208), the gear six (207) is meshed with the gear seven (208), a discharging ball (205) is arranged at the rear end of the gear six (207), a gear five (206) is arranged on the discharging ball (205), the discharging ball (205) is arranged in a feeding barrel (103), and the gear five (206) is meshed with a gear four (110);
the compression mechanism comprises a material breaking plate (311) which is slidably arranged in a compression shell (304), an extrusion spring (314) is arranged at the rear end of the material breaking plate (311), a compression rack (306) is arranged at the lower end of the extrusion spring (314), a detection plug (312) is arranged on the side edge of the compression shell (304), a top movable plate (313) is arranged at the lower end of the compression shell (304), a top movable rod (309) is rotatably arranged at the lower end of the top movable plate (313), a top movable rack (308) is slidably arranged on a base (101), one end of the top movable rod (309) is rotatably arranged on the top movable plate (313), an eleven gear (310) is arranged on the side edge of the top movable rack (308), and an eleven gear (307) is arranged on the side edge of the eleven gear (310);
the discharging barrel (105) is provided with a leak hole, the pushing rack (112) is provided with a rack, and the rack on the pushing rack (112) is meshed with the first gear (107).
2. The device for measuring the resistivity of the pile foundation grounding leakage current packing of the pole tower according to claim 1, wherein the device comprises the following components: the lower end of the compression rack (306) is provided with a rack, the rear end of the compression rack (306) is provided with a hydraulic cylinder, and the upper rack of the compression rack (306) is meshed with the gear (307).
3. The device for measuring the resistivity of the pile foundation grounding leakage current packing of the pole tower according to claim 2, wherein the device comprises the following components: the compression shell (304) on be provided with compression hole (305), compression hole (305) be disconnected flitch (311) slidable mounting position, disconnected flitch (311) rear end is provided with extrusion spring (314).
4. A method for measuring a tower pile foundation grounding leakage packing resistivity measuring device according to any one of claims 1-3, comprising the steps of:
s1, respectively placing materials to be mixed into a feed bin (103) and a stirring hopper (202);
s2, after the mixture is extruded and molded in the detection device (3), electrifying the detection plug (312);
s3, calculating the resistance by passing the current through the two-side detection plug (312).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111088558.6A CN113791122B (en) | 2021-09-16 | 2021-09-16 | Device and method for measuring resistivity of pile foundation grounding leakage flow packet filler of tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111088558.6A CN113791122B (en) | 2021-09-16 | 2021-09-16 | Device and method for measuring resistivity of pile foundation grounding leakage flow packet filler of tower |
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| CN113791122A CN113791122A (en) | 2021-12-14 |
| CN113791122B true CN113791122B (en) | 2023-08-25 |
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