CN111654004B - Electric power engineering pipeline and construction method thereof - Google Patents
Electric power engineering pipeline and construction method thereof Download PDFInfo
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- CN111654004B CN111654004B CN202010508000.8A CN202010508000A CN111654004B CN 111654004 B CN111654004 B CN 111654004B CN 202010508000 A CN202010508000 A CN 202010508000A CN 111654004 B CN111654004 B CN 111654004B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention relates to the technical field of electric power engineering, and aims to provide an electric power engineering pipeline and a construction method thereof. The problem of when the cable in the pipeline breaks down, need take out the maintenance with the cable from the pipeline, penetrate the pipeline of a section one section again in, inconvenient operation is solved. The cable maintenance device has the advantages that the cable can be maintained in the pipeline, the cable does not need to be taken out of the pipeline and then placed back, and the operation is convenient.
Description
Technical Field
The invention relates to the technical field of electric power engineering, in particular to an electric power engineering pipeline and a construction method thereof.
Background
At present, cable laying is common in the construction process of electric power engineering. When the cable needs to be laid underground, a pipeline for protecting the cable is usually buried underground, and then the cable is arranged in the pipeline, so that the interior of the pipeline has good air tightness, and the cable in the pipeline is basically prevented from being corroded by air and rainwater.
However, when the cable fails, the cable needs to be taken out of the pipeline for inspection, and then the cable is inserted into the pipeline one by one after being repaired, so that the maintenance is very troublesome.
The above prior art solutions have the following drawbacks: when the cable in the pipeline breaks down, the cable needs to be taken out of the pipeline for maintenance, and then the cable penetrates into the pipeline one section by one section, so that the operation is inconvenient.
Disclosure of Invention
The invention aims to provide an electric power engineering pipeline, which can be used for overhauling a cable in the pipeline without taking the cable out of the pipeline and then placing the cable back, and is convenient to operate.
The above object of the present invention is achieved by the following technical solutions:
an electric power engineering pipeline comprises a first pipe barrel and a second pipe barrel, wherein a first pipe block and a second pipe block are respectively connected in the first pipe barrel and the second pipe barrel in a sliding mode, a tenon is fixed on one face, facing the second pipe block, of the first pipe block, a mortise is formed in one face, facing the first pipe block, of the second pipe block, and when the first pipe block and the second pipe block respectively slide to the end positions of the first pipe barrel and the second pipe barrel, the tenon is in inserting fit with the mortise.
By adopting the technical scheme, the first pipe block and the second pipe block are connected in the first pipe barrel and the second pipe barrel in a sliding manner, and the tenon of the first pipe block is in inserting fit with the mortise of the second pipe block, so that the electric power engineering pipeline is completely installed; when the inside cable of pipeline is overhauld to needs, make first pipe piece and second pipe piece separation and slide to accomodating in first bobbin or second bobbin to in opening the electric power engineering pipeline, overhaul the inside cable of pipeline, need not to take out the back with the cable from the pipeline and placing back convenient operation.
The present invention in a preferred example may be further configured to: when the tenon is matched with the mortise in an inserting mode, the inserting position of the first pipe block and the inserting position of the second pipe block are covered with an arc-shaped first stop block right above the inserting position of the first pipe block and the inserting position of the second pipe block.
Through adopting above-mentioned technical scheme, first dog covers the position directly over first pipe piece and second pipe piece grafting position department to reduce the direct condition of permeating the pipeline from first pipe piece and second pipe piece grafting position department of ponding, simultaneously, first dog is the arc type, make the connection between first dog and first pipe piece, the second pipe piece more laminate, first dog and first pipe piece, the connection between the second pipe piece is inseparabler, prevention of seepage water effect is better.
The present invention in a preferred example may be further configured to: first dog orientation the tenon with the grafting position department of tongue-and-groove has seted up first mounting groove, first mounting groove internal fixation inlays and is equipped with first sealing rod.
Through adopting above-mentioned technical scheme, first sealing rod produces the inflation deformation after meeting water, can fill up the clearance between first dog and first pipe piece, the second pipe piece, produces contact pressure simultaneously, prevents the ponding seepage.
The present invention in a preferred example may be further configured to: the joint positions of the first pipe barrel, the first pipe block, the second pipe barrel and the second pipe block are respectively covered with a second stop block and a third stop block which are arc-shaped.
Through adopting above-mentioned technical scheme, the second dog and the second dog of arc type cover respectively at first bobbin, first pipe piece and second bobbin, the linking position department of second pipe piece, with reduce ponding and directly follow first bobbin, first pipe piece and second bobbin, the inside condition of the linking position department infiltration pipeline of second pipe piece, make second dog and first bobbin, the connection between the first pipe piece is more laminated, third dog and second bobbin, the connection between the second pipe piece is more laminated, connect inseparabler, prevention of seepage water effect is better.
The present invention in a preferred example may be further configured to: the first pipe barrel and the second pipe barrel are integrally formed, and arc-shaped pipe seats are arranged on the inner surfaces of the first pipe barrel and the second pipe barrel.
Through adopting above-mentioned technical scheme, the tube socket of arc type plays the effect of placing the cable, avoids the position of cable to take place the skew, also plays the effect of protection to the cable simultaneously.
The present invention in a preferred example may be further configured to: the bottom of the tube seat is provided with a lifting component fixed on the first tube barrel and the second tube barrel, and the lifting component is used for driving the tube seat to lift.
Through adopting above-mentioned technical scheme, the lift part drive tube socket goes up and down to can be according to the position of actual demand lifting cable when overhauing the cable, the maintainer of being convenient for overhauls the cable, and the using-way is nimble.
The present invention in a preferred example may be further configured to: the lifting component comprises a motor, a vertically arranged worm, a worm wheel meshed with the worm, a first connecting rod and a second connecting rod, the motor is fixed to the end portion of the worm, the other end of the worm is meshed with the worm wheel, one end of the first connecting rod is fixed to the worm wheel, the other end of the first connecting rod is hinged to the second connecting rod, and the second connecting rod is fixed to the tube seat.
By adopting the technical scheme, the motor is started, the output shaft of the motor rotates to drive the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the first connecting rod to rotate, and the first connecting rod drives the second connecting rod to rotate, so that the tube seat fixed with the second connecting rod moves up and down, and the purpose of lifting the tube seat is realized.
The present invention in a preferred example may be further configured to: the upper part of the tube seat is of a hollow structure, and the lower part of the tube seat is of a solid structure.
Through adopting above-mentioned technical scheme, the whole weight of tube socket alleviates, and the tube socket makes the focus reduce because of the lower part is solid construction, and overall structure is more firm, avoids taking place the condition appearance that the slope rocked because of external force interference at the tube socket in the lift in-process for the installation of cable is more firm.
The invention also aims to provide a construction method of the electric power engineering pipeline, which can be used for overhauling the cable in the pipeline without taking the cable out of the pipeline and then placing the cable back, and is convenient to operate.
The second aim of the invention is realized by the following technical scheme:
a construction method of an electric power engineering pipeline comprises the following steps,
excavating a foundation trench: excavating a foundation trench in a construction area;
installing a pipeline: sliding the first pipe block and the second pipe block to enable a tenon of the first pipe block to be in inserting fit with a mortise of the second pipe block, and fixedly installing the first stop block, the second stop block and the third stop block to complete assembly of a single pipeline, and then sequentially arranging a plurality of pipelines in a base groove and connecting the pipelines into a whole;
plugging the pipe orifice of the pipeline: the cable is checked for penetration test to prevent blockage, and openings at two ends of the pipeline are blocked to prevent impurities from entering;
backfilling the base groove: and backfilling soft soil around the pipeline to reach the designed and specified compactness, and finishing construction.
Through adopting above-mentioned technical scheme, first pipe piece and second pipe piece sliding connection are in first bobbin and second bobbin, and the tenon of first pipe piece and the tongue-and-groove grafting cooperation of second pipe piece for the connection can be dismantled to the electric power engineering pipeline, in order when overhauing the cable in the pipeline, makes first pipe piece and the separation of second pipe piece, opens the pipeline, and then need not to place the back after taking out the cable from the pipeline, convenient operation.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the first pipe block and the second pipe block are slidably connected into the first pipe barrel and the second pipe barrel, and the tenon of the first pipe block is in inserting fit with the mortise of the second pipe block, so that the pipeline can be directly opened when the cable is overhauled in the pipeline, the cable does not need to be placed back after being taken out of the pipeline, and the operation is convenient;
2. the arc-shaped first stop block ensures that the first stop block is more attached to the first pipe block and the second pipe block, the first stop block is more tightly connected with the first pipe block and the second pipe block, and the water seepage prevention effect is better;
3. the first water stop strip generates expansion deformation and contact pressure after meeting water so as to prevent seeper from leaking;
4. the arc-shaped second stop block and the arc-shaped second stop block are respectively covered at the joint positions of the first pipe barrel, the first pipe block, the second pipe barrel and the second pipe block, so that the second stop block, the first pipe barrel, the first pipe block, the third stop block, the second pipe barrel and the second pipe block are connected more tightly, and the water seepage prevention effect is better;
5. the arc-shaped tube seat plays a role in placing the cable, so that the position of the cable is prevented from deviating, and meanwhile, the cable is protected;
6. the lifting component drives the tube seat to lift so as to lift the position of the cable according to actual requirements when the cable is overhauled, so that the cable is convenient to overhaul by maintainers, and the use mode is flexible;
7. the hollow lower part in tube socket upper portion is solid, and whole weight alleviates, and overall structure is more firm, avoids taking place the condition appearance that the slope rocked because of external force interference at the tube socket in the lift in-process for the installation of cable is more firm.
Drawings
FIG. 1 is a schematic overall structure diagram of an electric power engineering pipeline and a construction method thereof;
FIG. 2 is a schematic view of an installation state of an electric engineering pipeline;
FIG. 3 is a schematic diagram of the positional relationship of the tenon and the mortise;
FIG. 4 is a schematic view of a maintenance state of an electric power engineering pipeline;
FIG. 5 is a schematic diagram of the positional relationship of the socket, the motor, the worm wheel, the worm, the first link and the second link.
In the drawings, 1, a first tube; 2. a second barrel; 3. a first tube block; 4. a second tube block; 5. a tenon; 6. mortises; 7. a first stopper; 8. a first mounting groove; 9. a first water stop; 10. a second stopper; 11. a second mounting groove; 12. a second water stop; 13. a third stopper; 14. a third mounting groove; 15. a third water stop bar; 16. a tube holder; 17. a motor; 18. a worm gear; 19. a worm; 20. a first link; 21. a second link; 22. a base; 23. mounting a plate; 24. and (7) mounting frames.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship, unless otherwise specified.
The embodiments of the present invention will be described in further detail with reference to the drawings attached hereto.
The first embodiment is as follows:
referring to fig. 1, a first embodiment of the present invention provides an electrical engineering pipeline, including a first pipe barrel 1, a second pipe barrel 2, a first pipe block 3, and a second pipe block 4, where the first pipe block 3 and the second pipe block 4 are respectively slidably connected in the first pipe barrel 1 and the second pipe barrel 2, and one ends of the first pipe block 3 and the second pipe block 4 are respectively limited in the first pipe barrel 1 and the second pipe barrel 2, so that the first pipe block 3 and the second pipe block 4 cannot be separated from the first pipe barrel 1 and the second pipe barrel 2, and when the first pipe block 3 and the second pipe block 4 respectively slide to end positions of the first pipe barrel 1 and the second pipe barrel 2, the first pipe block 3 and the second pipe block 4 are in insertion fit. At this time, the first tube 1, the second tube 2, the first tube block 3, and the second tube block 4 are formed in a cylindrical shape, a base 22 is fixed to the bottom of the duct, and the base 22 is elongated and has a trapezoidal cross section.
Referring to fig. 2, a tenon 5 is fixed on one surface of the first pipe block 3 facing the second pipe block 4, the tenon 5 is in a shape like a Chinese character 'shan', a mortise 6 is arranged on one surface of the second pipe block 4 facing the first pipe block 3, and the tenon 5 is in inserting fit with the mortise 6 (see fig. 3).
Referring to fig. 1 and 2, when the tenon 5 and the mortise 6 are in inserted fit, the insertion position of the first pipe block 3 and the second pipe block 4 is covered with a first stopper 7 in an arc shape right above.
The joint positions of the first pipe barrel 1, the first pipe block 3, the second pipe barrel 2 and the second pipe block 4 are respectively covered with a second stop block 10 and a third stop block 13 which are arc-shaped.
Referring to fig. 2 and 3, a first mounting groove 8 is formed in the position, corresponding to the inserting position of the tenon 5 and the mortise 6, of the first stop dog 7, a notch of the first mounting groove 8 faces the inserting position of the tenon 5 and the mortise 6, a first water stop strip 9 is embedded in the first mounting groove 8, and the first water stop strip 9 is fixed in the first mounting groove 8 in a sticking mode.
First sealing rod 9, second sealing rod 12 and third sealing rod 15 are for having the rubber that meets water expansibility, first sealing rod 9, second sealing rod 12 and third sealing rod 15 produce 2-3 times expansion deformation after meeting water, can fill up first dog 7 and first pipe piece 3, between second pipe piece 4, second dog 10 and first bobbin 1, between first pipe piece 3, third dog 13 and second bobbin 2, the clearance between second bobbin 4, produce contact pressure simultaneously, play the effect that prevents the water seepage.
Referring to fig. 4, the first tube 1 and the second tube 2 are integrally formed, and the upper surfaces of the first tube 1 and the second tube 2 are provided with a tube holder 16 of a cambered type.
The upper portion of the socket 16 is a hollow structure and the lower portion of the socket 16 is a solid structure, so that the socket 16 forms a tumbler structure.
An installation plate 23 is fixed at the bottom of the tube seat 16, and a lifting component for driving the tube seat 16 to lift is arranged between the installation plate 23 and the upper surfaces of the first tube barrel 1 and the second tube barrel 2.
Referring to fig. 4 and 5, the lifting component includes a motor 17, three vertically arranged worms 19, worm wheels 18 engaged with the worms 19, first connecting rods 20 and second connecting rods 21, the worm wheels 18 are arranged at intervals along the circumferential direction of the worm wheels 18, the three worm wheels 18 are vertically arranged, mounting frames 24 are fixed on the upper surfaces of the first tube barrel 1 and the second tube barrel 2 at the joint positions, the motor 17 is fixed at the bottom of the mounting frames 24, the motor 17 is vertically arranged, one end of each worm 19 is connected to the mounting frame 24 in a rotating manner and is fixedly connected with an output shaft of the motor 17, the other end of each worm 19 is positioned right above the mounting frame 24 and engaged with the three worm wheels 18, the first connecting rods 20 and the second connecting rods 21 are arranged in pairs, the first connecting rods 20 and the second connecting rods 21 are respectively three, the first connecting rods 20 are L-shaped, one ends of the three first connecting rods 20 are respectively fixedly connected with the three worm wheels 18, the other ends of the three first connecting rods 20 are respectively, the other ends of the three second connecting rods 21 are hinged to the bottom of the mounting plate 23 to drive the mounting plate 23 to move in the vertical direction, and the three second connecting rods 21 are arranged around the bottom center of the mounting plate 23 at intervals.
The implementation principle of the embodiment is as follows: when the cable needs to be overhauled, excavating the soil around the electric power engineering pipeline until the electric power engineering pipeline is exposed.
And screwing out the screws to separate the first stop 7 from the first pipe block 3 and the second pipe block 4, separate the second stop 10 from the first pipe barrel 1 and the first pipe block 3, separate the third stop 13 from the second pipe barrel 2 and the second pipe block 4, and remove the first stop 7, the second stop 10 and the third stop 13.
The first pipe block 3 and the second pipe block 4 are made to slide along the interiors of the first pipe barrel 1 and the second pipe barrel 2, and then the tenon 5 of the first pipe block 3 and the mortise 6 of the second pipe block 4 are separated, so that the first pipe block 3 and the second pipe block 4 are respectively accommodated in the interiors of the first pipe barrel 1 and the second pipe barrel 2.
At this moment, the maintainer is according to actual condition and height, control motor 17 starts, the output shaft of motor 17 rotates, it rotates to drive worm 19, worm 19 drives rather than the worm wheel 18 rotation of meshing, worm wheel 18 drives rather than fixed first connecting rod 20 upwards lifts up, first connecting rod 20 drives rather than articulated second connecting rod 21 upward movement, second connecting rod 21 drives mounting panel 23 and follows vertical direction motion, mounting panel 23 drives tube socket 16 and rises, the maintainer can reduce the distance of bowing down the body this moment, more convenient to overhaul.
After the maintenance is finished, the maintainer controls the motor 17 to rotate reversely to drive the worm 19 and the worm wheel 18 to rotate reversely, so that the first connecting rod 20 moves downwards to drive the second connecting rod 21 to move downwards to an inclined state, and at the moment, the mounting plate 23 and the tube seat 16 are located at the lower position inside the electric power engineering pipeline.
And (3) sliding the first pipe block 3 and the second pipe block 4 along the outer sides of the first pipe barrel 1 and the second pipe barrel 2 until the tenon 5 of the first pipe block 3 is in inserting fit with the mortise 6 of the second pipe block 4, at the moment, the first pipe barrel 1, the second pipe barrel 2, the first pipe block 3 and the second pipe block 4 form a pipeline, and fixedly installing the first stop 7, the second stop 10 and the third stop 13 at the inserting position of the tenon 5 and the mortise 6, the joint position of the first pipe barrel 1 and the first pipe block 3 and the joint position of the second pipe barrel 2 and the second pipe block 4 respectively by using screws to backfill soil.
Example two:
the second embodiment of the invention provides a construction method of an electric power engineering pipeline, which comprises the following steps,
excavating a foundation trench: excavating a foundation trench in a construction area;
installing a pipeline: sliding the first pipe block 3 and the second pipe block 4 to enable a tenon 5 of the first pipe block 3 and a mortise 6 of the second pipe block 4 to be in inserted fit, installing a first stop block 7, a second stop block 10 and a third stop block 13 to complete the assembly of a single pipeline, and then sequentially arranging a plurality of pipelines in the base groove and connecting the pipelines into a whole;
plugging the pipe orifice of the pipeline: the cable is checked for penetration test to prevent blockage, and openings at two ends of the pipeline are blocked to prevent impurities from entering;
backfilling the base groove: and backfilling soft soil around the pipeline to reach the designed and specified compactness, and finishing construction.
The beneficial effect of this embodiment does: the first pipe block 3 and the second pipe block 4 are connected in the first pipe barrel 1 and the second pipe barrel 2 in a sliding mode, and the tenon 5 of the first pipe block 3 is in inserting fit with the mortise 6 of the second pipe block 4, so that the electric power engineering pipeline can be detachably connected, when a cable is overhauled in the pipeline, the first pipe block 3 is separated from the second pipe block 4, the pipeline is opened, the cable does not need to be taken out of the pipeline and then placed back, and operation is convenient; first dog 7, second dog 10 and third dog 13 are inlayed and are equipped with first sealing strip 9, second sealing strip 12 and third sealing strip 15, in order to be full of first dog 7 and first pipe piece 3, between the second pipe piece 4, second dog 10 and first bobbin 1, between the first pipe piece 3, third dog 13 and second bobbin 2, the clearance between the second pipe piece 4, produce contact pressure simultaneously, play the effect that prevents the water seepage, and then make the gas tightness of electric power engineering pipeline better.
Claims (7)
1. The electric power engineering pipeline is characterized by comprising a first pipe barrel (1) and a second pipe barrel (2), wherein a first pipe block (3) and a second pipe block (4) are respectively connected in the first pipe barrel (1) and the second pipe barrel (2) in a sliding manner, a tenon (5) is fixed on one surface, facing the second pipe block (4), of the first pipe block (3), a mortise (6) is arranged on one surface, facing the first pipe block (3), of the second pipe block (4), and when the first pipe block (3) and the second pipe block (4) respectively slide to the end positions of the first pipe barrel (1) and the second pipe barrel (2), the tenon (5) is in inserted connection with the mortise (6);
when the tenon (5) is in inserted fit with the mortise (6), an arc-shaped first stop block (7) covers the inserted position of the first pipe block (3) and the second pipe block (4) right above;
first dog (7) orientation tenon (5) with first mounting groove (8) have been seted up to the grafting position department of tongue-and-groove (6), first mounting groove (8) internal fixation inlays and is equipped with first sealing rod (9).
2. An electrical engineering pipe according to claim 1, wherein the joint positions of the first pipe barrel (1), the first pipe block (3), the second pipe barrel (2) and the second pipe block (4) are respectively covered with a second stop (10) and a third stop (13) in the form of an arc.
3. An electrical engineering pipe according to claim 2, wherein the first pipe barrel (1) and the second pipe barrel (2) are integrally formed, and the upper surfaces of the first pipe barrel (1) and the second pipe barrel (2) are provided with arc-shaped pipe seats (16).
4. An electrical engineering pipeline according to claim 3, wherein the bottom of the pipe socket (16) is provided with a lifting component fixed on the first pipe barrel (1) and the second pipe barrel (2), and the lifting component is used for driving the pipe socket (16) to lift.
5. An electric engineering pipeline according to claim 4, characterized in that the lifting component comprises a motor (17), a vertically arranged worm (19), a worm wheel (18) engaged with the worm (19), a first connecting rod (20) and a second connecting rod (21), the motor (17) is fixed at the end of the worm (19), the other end of the worm (19) is engaged with the worm wheel (18), one end of the first connecting rod (20) is fixed with the worm wheel (18), the other end of the first connecting rod is hinged with the second connecting rod (21), and the second connecting rod (21) is fixed on the pipe seat (16).
6. An electrical engineering pipe according to claim 4, characterized in that the upper part of the pipe socket (16) is of hollow structure and the lower part of the pipe socket (16) is of solid structure.
7. A construction method of an electric power engineering pipeline based on any one of claims 2 to 6 is characterized by comprising the following steps,
excavating a foundation trench: excavating a foundation trench in a construction area;
installing a pipeline: sliding the first pipe block (3) and the second pipe block (4) to enable a tenon (5) of the first pipe block (3) to be in inserted fit with a mortise (6) of the second pipe block (4), and fixedly installing the first stop block (7), the second stop block (10) and the third stop block (13) to complete the assembly of a single pipeline, and then sequentially arranging a plurality of pipelines in a base groove and connecting the pipelines into a whole;
plugging the pipe orifice of the pipeline: the cable is checked for penetration test to prevent blockage, and openings at two ends of the pipeline are blocked to prevent impurities from entering;
backfilling the base groove: and backfilling soft soil around the pipeline to reach the designed and specified compactness, and finishing construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010508000.8A CN111654004B (en) | 2020-06-05 | 2020-06-05 | Electric power engineering pipeline and construction method thereof |
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| CN202010508000.8A CN111654004B (en) | 2020-06-05 | 2020-06-05 | Electric power engineering pipeline and construction method thereof |
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| CN111654004A CN111654004A (en) | 2020-09-11 |
| CN111654004B true CN111654004B (en) | 2021-05-25 |
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| CN113541048B (en) * | 2021-07-20 | 2023-01-13 | 国网山东省电力公司烟台供电公司 | Novel cable duct bank repairing device and repairing method thereof |
| CN114843983A (en) * | 2022-06-07 | 2022-08-02 | 北京市海实电气安装工程有限公司 | Electric power engineering pipeline and construction method thereof |
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