CN207938833U - Vertical grounding electrode mounting structure for solution cavity geology - Google Patents
Vertical grounding electrode mounting structure for solution cavity geology Download PDFInfo
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- CN207938833U CN207938833U CN201820357433.6U CN201820357433U CN207938833U CN 207938833 U CN207938833 U CN 207938833U CN 201820357433 U CN201820357433 U CN 201820357433U CN 207938833 U CN207938833 U CN 207938833U
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- fixing piece
- solution cavity
- feed rod
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Abstract
The utility model is related to the vertical grounding electrode mounting structures for solution cavity geology, including fixing device, fixing device includes the first fixing piece, and one end of the first fixing piece is fixedly arranged in solution cavity, first fixing piece is additionally provided with the first installation space, and the opening of the first installation space is towards the hole of solution cavity；Earthing pole device, earthing pole device include feed rod and the diffusing layer for expanding feed rod diffusing area, and feed rod is set in the first installation space, and diffusing layer is set in the gap formed between feed rod and the first fixing piece.Pass through the setting of the first fixing piece, feed rod and diffusing layer are set in the first installation space of the first fixing piece, one end of first fixing piece is fixed so that the installation of feed rod and diffusing layer can be installed without filling solution cavity, the Jing Dong that the other end of feed rod extends to normal geological characteristics by the first installation space carries out the operations such as follow-up shut-in well, it reduces construction cost and shortens the construction period, diffusing layer reduces ground resistance, prolongs the service life.
Description
Technical field
The utility model is related to technical field of HVDC transmission, are connect for the vertical of solution cavity geology more particularly to a kind of
Earth polar mounting structure.
Background technology
Compared with ac transmission, D.C. high voltage transmission accurately can control quickly because having system, power level and direction,
And long distance powedr transmission has more the characteristics of economy, D.C. high voltage transmission becomes a kind of main way of long distance powedr transmission.At a distance
D.C. high voltage transmission use ground return circuit, to improve operational reliability and save the loss of electric energy on the line.Earthing pole exists
Play an important role during system operation, such as command potential, by system power import the earth.
Vertical grounding electrode has the advantages that Economization on land, especially for large and medium-sized as a kind of Novel connecting earth polar mode
For city, cost of land is high, and construction cost can be substantially reduced using vertical grounding electrode.Very due to vertical grounding electrode buried depth
It is deep, and it is soft rock, such as shale, limestone or mud stone that vertical grounding electrode addressing, which needs underground covering Rock,.Shale, limestone
Or the intensity of mud stone is relatively low, is compared with hard rock (such as granite, basalt), it is much lower at well difficulty.But shale, limestone
Or mud stone can form solution cavity after encountering the corrosion function of water and carbon dioxide.This solution cavity can bring the increase of construction cost,
For more steady progress vertical grounding electrode construction, the method taken is that stone, cement and clay etc. are utilized when encountering cavern
It is backfilled, to form obturator.However, this form of construction work can cause backfill to measure problem big, long in time limit, and due to returning
It can not ensure that obturator is tamped completely after filling out, be rushed there is likely to be collapse hole, repeatedly in the vertical grounding electrode pore forming process in later stage
The risk of hole backfill.
Invention content
Based on this, it is necessary to for vertical grounding electrode installation period length, the problem of high cost of solution cavity landforms, provide one kind
Vertical grounding electrode mounting structure for solution cavity geology.
Its technical solution is as follows：
A kind of vertical grounding electrode mounting structure for solution cavity geology, including fixing device, fixing device include first solid
Determine part, one end of the first fixing piece is fixedly arranged in solution cavity, and the first fixing piece is additionally provided with the first installation space, the first installation space
It is open towards the hole of solution cavity；Earthing pole device, earthing pole device include feed rod and for expanding feed rod diffusing area
Diffusing layer, feed rod are set in the first installation space, and diffusing layer is set in the gap formed between feed rod and the first fixing piece.
The above-mentioned vertical grounding electrode mounting structure for solution cavity geology feed rod and is dissipated by the setting of the first fixing piece
Fluid layer is set in the first installation space of the first fixing piece, since one end of the first fixing piece is fixed in solution cavity so that feedback
The installation of torch and diffusing layer can be installed without filling solution cavity, and the other end of feed rod is extended to by the first installation space
The Jing Dong of normal geological characteristics carries out the operations such as follow-up shut-in well, reduces construction cost and shortens the construction period, diffusing layer expands feed
The diffusing area of stick reduces ground resistance, extends the service life of vertical grounding electrode.
Technical solution is illustrated further below：
Fixing device further includes the second fixing piece in one of the embodiments, and the first fixing piece is sheathed on the second fixation
In part, the inner wall of the outer wall of the first fixing piece and the second fixing piece forms cricoid second installation space, in the second installation space
Equipped with protector.First fixing piece and the second fixing piece form the second installation space, protector stop diffusing layer long term in
It is fallen into solution cavity after first fixing piece and the first fixing piece of destruction, to extend the service life of vertical grounding electrode.
Further include the locating piece for making the first fixing piece and the second fixing piece position in one of the embodiments, it is fixed
Position part is equipped between outer wall and the inner wall of the second fixing piece multiple and set on the first fixing piece.The setting of locating piece makes first
It positions and fixes between fixing piece and the second fixing piece, ensure that vertical grounding electrode is in stable working environment.
Locating piece includes spacer bar in one of the embodiments, and the both ends of spacer bar are fixedly arranged on first and consolidate respectively
Determine the inner wall of the outer wall and the second fixing piece of part.Spacer bar is fixedly connected conveniently, and of low cost.
Locating piece is in the outer wall fixed setting around the first fixing piece in one of the embodiments,.It is improved around setting
Position the stability being fixedly connected.
Protector includes the protective layer being set in the second installation space in one of the embodiments,.Protective layer setting letter
Folk prescription just, is layed in the second installation space, easy for construction, improves production efficiency.
First fixing piece and the second fixing piece is cylindrical or rectangular drum like setting in one of the embodiments,.Circle
Tubular or rectangular drum like are simple in structure, transport and easily manufactured.
The second installation space is more than the depth of solution cavity along the length direction depth of the first fixing piece in one of the embodiments,
Degree.To ensure that diffusing layer is not fallen into solution cavity, to extend the service life of vertical grounding electrode, make the setting of diffusing layer and protector
Height is above solution cavity height.
Further include multiple installation parts in one of the embodiments, the both ends of installation part respectively with the outer wall of feed rod and
The inner wall of first fixing piece connects and is used to make feed rod to be centrally located in the first installation space.
Feed rod is round steel in one of the embodiments, and diffusing layer is petroleum coke layer of charcoal.Round steel and petroleum coke are taken
It is convenient, it is of low cost, and meet the functional requirement of vertical grounding electrode, convenient for reducing production cost.
Description of the drawings
Fig. 1 is the embodiments of the present invention schematic diagram；
Fig. 2 is the Section A-A structural schematic diagram of Fig. 1.
110, the first fixing piece, the 120, second fixing piece, the 210, first installation space, the 220, second installation space, 300,
Spacer bar, 400, plain concrete.
Specific implementation mode
The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings：
It should be noted that when alleged element is with another element " fixation " in text, it can be directly in another element
Above or there may also be elements placed in the middle.When an element is considered as with another element " connection ", it can be straight
It is connected to another element in succession or may be simultaneously present centering elements.On the contrary, when element is referred to as " directly existing " another element
When "upper", intermediary element is not present.Term as used herein " vertically ", " horizontal ", "left", "right" and similar table
It states for illustrative purposes only, is not offered as being unique embodiment.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with the technology for belonging to the utility model
The normally understood meaning of technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein packet
Include any and all combinations of one or more relevant Listed Items.
In embodiment as depicted in figs. 1 and 2, a kind of vertical grounding electrode mounting structure for solution cavity geology is provided, is wrapped
Fixing device is included, fixing device includes the first fixing piece 110, and one end of the first fixing piece 110 is fixedly arranged in solution cavity, and first fixes
Part 110 is additionally provided with the first installation space 210 being arranged in strip, and the opening of the first installation space 210 is towards the hole of solution cavity；
Earthing pole device, earthing pole device include feed rod and the diffusing layer for expanding feed rod diffusing area, and feed rod is set to the
In one installation space 210, diffusing layer is set in the gap formed between feed rod and the first fixing piece 110.
By the setting of the first fixing piece 110, feed rod and diffusing layer are set to the first of the first fixing piece 110 and install sky
Between in 210, since one end of the first fixing piece 110 is fixed in solution cavity so that the installation of feed rod and diffusing layer is without filling
Solution cavity can be installed, and the other end of feed rod extends to the Jing Dong progress of normal geological characteristics by the first installation space 210
The operations such as follow-up shut-in well reduce construction cost and shorten the construction period, and diffusing layer expands the diffusing area of feed rod, reduce ground connection electricity
Resistance, extends the service life of vertical grounding electrode.
Further, diffusing layer be coke filled layer, coke take it is of low cost, and construct when it is easy for installation, when present
After torch is set, coke is filled to the first installation space.
Vertical grounding electrode digs earthing pole well in construction and installation, on ground and obtains the depth of solution cavity when encountering solution cavity,
And the first fixing piece 110 is made according to the depth of solution cavity and one end of the first fixing piece 110 is fixed at solution cavity bottom, it connects
It, by feed rod and coke according to requiring to be installed in the first installation space 210 of the first fixing piece 110, feed rod leans on hole
One end directly extend out to and need the position shunt in a well, and subsequent construction and capping operation are carried out, compared to traditional whole backfills
Then burrow the mode of construction again, and the vertical grounding electrode mounting structure provided by the present application for solution cavity geology is not only not necessarily to back
It fills out, but also accelerates construction speed, shorten the construction period, improve production efficiency.
Coke and feed rod are not shown in fig. 1 and 2, known to those skilled in the art, and which is not described herein again.Feedback
The effect of torch is to induce current into the earth, and coke is filled in the main function around feed rod：On the one hand it can expand feedback
The diffusing area of torch reduces ground resistance, to lower the superficial density of feed rod, to drop low-temperature-rise and its rate of climb,
It avoids that electroosmosis occurs；On the other hand, coke can play the role of protect feed rod, be alleviated or avoided feed rod directly with
External contact reduces the corrosion rate of feed rod, extends the service life of earthing pole, improves earthing pole heat-producing characteristics, and then make
Vertical grounding electrode being capable of normal operation.
As needed, the first fixing piece 110 can be in that frame structure is arranged, and feed rod and coke are set to frame structure first
In first installation space 210 of fixing piece 110.
Further, the bottom of the first installation space 210 is also equipped with coke, to further function as protection feed rod
Effect.
Buried depth at the top of feed rod is 5m, and the buried depth of vertical grounding electrode is very deep, and depth reaches 40m.Therefore, the first fixing piece
110 210 depth of the first installation space will be not only greater than the depth of solution cavity, it is also contemplated that feed rod buried depth factor.
In embodiment as shown in Figure 1, the lower end of the first fixing piece 110 is fixedly arranged on solution cavity bottom.First fixing piece 110
Lower end can take setting fixed seat to be fixed with the installation of solution cavity bottom, also can be specifically arranged according to the landform of solution cavity bottom.
On the basis of any of the above-described a embodiment, in embodiment as depicted in figs. 1 and 2, fixing device further includes
Two fixing pieces 120, the first fixing piece 110 are sheathed in the second fixing piece 120, and the outer wall of the first fixing piece 110 and second is fixed
The inner wall of part 120 forms cricoid second installation space 220, and protector is equipped in the second installation space 220.First fixing piece
110 and second fixing piece 120 formed the second installation space 220, protector is to stop coke long term in the first fixing piece 110
And fallen into solution cavity after destroying the first fixing piece 110, extend the service life of vertical grounding electrode.
When being set in solution cavity due to the first fixing piece 110, coke grain may be fallen into solution cavity, just can not so be played pair
The more preferable protective effect of feed rod.Therefore, the second fixing piece 120 is set, and the first fixing piece 110 is sheathed on the second fixing piece 120
It is interior, the second installation space 220 of annular is formed between 120 inner wall of 110 outer wall of the first fixing piece and the second fixing piece, meanwhile,
Protector is filled in second installation space 220, protector protection coke simultaneously avoids coke from falling into solution cavity, to play to feedback
The better protective effect of torch reduces ground resistance, the service life of extended feeding stick.
As needed, in the case where meeting the requirements, protector can stop that coke enters any of solution cavity
Grain or protective layer.
Further include for making first in embodiment as depicted in figs. 1 and 2 on the basis of any of the above-described a embodiment
The locating piece of fixing piece 110 and the positioning of the second fixing piece 120, locating piece are equipped with outer wall multiple and set on the first fixing piece 110
And second fixing piece 120 inner wall between.The setting of locating piece makes to position between the first fixing piece 110 and the second fixing piece 120
It is fixed, ensure that vertical grounding electrode is in stable working environment.
On the basis of any of the above-described a embodiment, in embodiment as depicted in figs. 1 and 2, locating piece includes positioning steel
Muscle 300, the both ends of spacer bar 300 are fixedly arranged on the inner wall of the outer wall and the second fixing piece 120 of the first fixing piece 110 respectively.It is fixed
Position reinforcing bar 300 is fixedly connected conveniently, and of low cost.
On the basis of any of the above-described a embodiment, in embodiment as depicted in figs. 1 and 2, locating piece is in around first
The outer wall of fixing piece 110 is fixedly installed.The stability that positioning is fixedly connected is improved around setting, improves 110 He of the first fixing piece
Stablize position between second fixing piece 120.
Further, locating piece is fixed on the positioning around setting on the different height of 110 outer wall of the first fixing piece.
Specifically, every 1.5m height i.e. around the first fixing piece between the first fixing piece 110 and the second fixing piece 120
110 and second fixing piece 120 open up six mounting holes, then take the spacer bar 300 of six diameter 16mm to be welded and fixed.
On the basis of any of the above-described a embodiment, in embodiment as depicted in figs. 1 and 2, protector includes that filling is set
Protective layer in the second installation space 220.Protective layer setting is simple and convenient, is layed in the second installation space, easy for construction,
Improve production efficiency.
Further, protective layer is filled by plain concrete 400, and plain concrete 400 is taken conveniently, of low cost.This
In, plain concrete 400 is by no muscle or does not configure the concrete of steel bar stress and is made.
On the basis of any of the above-described a embodiment, in embodiment as depicted in figs. 1 and 2, the first fixing piece 110 and
Two fixing pieces 120 are cylindrical or rectangular drum like is arranged.Cylindric or rectangular drum like is simple in structure, transports and easily manufactured.
In embodiment as shown in Figure 1, the first fixing piece 110 and the second fixing piece 120 may respectively be inner barrel and outer barrel, interior
Jacket casing is set in outer barrel, is fixed using spacer bar 300 and then positioning between inner barrel and outer barrel, and feed rod and coke are set to inner cylinder
It is interior, plain concrete 400 is filled between inner barrel and outer barrel.Here, inner barrel and outer barrel is equivalent to the effect of protective bulkhead, and inner cylinder protection is burnt
In the outside loss to solution cavity of charcoal, outer barrel carries plain concrete 400.
Further, inner diameter of steel flue and outer barrel diameter differ 0.6m, and inner barrel and outer barrel can be selected steel and be manufactured.
It should be noted that coke may corrode inner cylinder barrel during the work time, therefore, to prevent in coke corrosion
Enter solution cavity after the barrel of cylinder, plain concrete 400 is filled between inner barrel and outer barrel and plays further protective action.
On the basis of any of the above-described a embodiment, the second installation space 220 is deep along the length direction of the first fixing piece 110
Depth of the degree more than solution cavity.To ensure that coke is not fallen into solution cavity, to extend the service life of vertical grounding electrode, makes coke and prevent
The packed height of guard is above solution cavity height.
Specifically, in construction, the first fixing piece 110 and the depth of the second fixing piece 120 is made to be above cavern depth 1m,
To play better installation effect.Even if also the setting height of inner barrel and outer barrel or the setting height of plain concrete 400 are all higher than
Cavern depth at least 1m.
Further include multiple installation parts on the basis of any of the above-described a embodiment, the both ends of installation part respectively with feed rod
Outer wall and the inner wall of the first fixing piece 110 connect and be used to make feed rod to be centrally located in the first installation space 210.
On the basis of any of the above-described a embodiment, feed rod is round steel, and protective layer is petroleum coke layer of charcoal.Round steel and oil
Coke is taken conveniently, of low cost, and meets the functional requirement of vertical grounding electrode, convenient for reducing production cost.
Specifically, feed rod selects the round steel of a diameter of 70mm, when the first fixing piece 110 is cylindric, first fixes
The petroleum coke diameter of section that 110 bottom of part is laid with is 1m.
It when construction, if encountering 14 mouthfuls of cavern, is calculated with cavern diameter 5m, if the side for backfilling and burrowing using tradition
Formula carries out construction and installation, then at least needs 1750 cubic metres of filler, at least 87.5 ten thousand yuan of karst cave treatment project cost.And it uses
The vertical grounding electrode mounting structure for solution cavity geology of the application is constructed, it is only necessary to 100.8 cubic metres of concrete, steel retaining wall
21.5 tons, about 28.5 ten thousand yuan of project cost saves 590,000 yuan of cost；Meanwhile backfill and punching completion about need 20 days, and it is sharp
10 day time is only needed with the application, the construction time is only the half of traditional back-filling way, to substantially reduce the duration.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of vertical grounding electrode mounting structure for solution cavity geology, which is characterized in that including：
Fixing device, the fixing device include the first fixing piece, and one end of first fixing piece is fixedly arranged in solution cavity, described
First fixing piece is additionally provided with the first installation space, and the opening of first installation space is towards the hole of the solution cavity；
Earthing pole device, the earthing pole device include feed rod and the diffusing layer for expanding the feed rod diffusing area,
The feed rod is set in first installation space, and the diffusing layer is set between the feed rod and first fixing piece
In the gap of formation.
2. the vertical grounding electrode mounting structure according to claim 1 for solution cavity geology, which is characterized in that the fixation
Device further includes the second fixing piece, and first fixing piece is sheathed in second fixing piece, outside first fixing piece
The inner wall of wall and second fixing piece forms cricoid second installation space, and protector is equipped in second installation space.
3. the vertical grounding electrode mounting structure according to claim 2 for solution cavity geology, which is characterized in that further include using
In the locating piece for making first fixing piece and second fixing piece position, the locating piece is equipped with multiple and is set to described
Between the outer wall of first fixing piece and the inner wall of second fixing piece.
4. the vertical grounding electrode mounting structure according to claim 3 for solution cavity geology, which is characterized in that the positioning
Part includes spacer bar, and the both ends of the spacer bar are fixedly arranged on the outer wall of first fixing piece and described second and fix respectively
The inner wall of part.
5. the vertical grounding electrode mounting structure according to claim 3 for solution cavity geology, which is characterized in that the positioning
Part is in the outer wall fixed setting around first fixing piece.
6. the vertical grounding electrode mounting structure according to claim 2 for solution cavity geology, which is characterized in that the protection
Part includes the protective layer being set in second installation space.
7. the vertical grounding electrode mounting structure according to claim 2 for solution cavity geology, which is characterized in that described first
Fixing piece and second fixing piece is cylindrical or rectangular drum like setting.
8. the vertical grounding electrode mounting structure according to claim 7 for solution cavity geology, which is characterized in that described second
Installation space is more than the depth of the solution cavity along the length direction depth of first fixing piece.
9. the vertical grounding electrode mounting structure according to claim 1 for solution cavity geology, which is characterized in that further include more
The both ends of a installation part, the installation part are connect, simultaneously with the inner wall of the outer wall of the feed rod and first fixing piece respectively
For making the feed rod be centrally located in first installation space.
10. being used for the vertical grounding electrode mounting structure of solution cavity geology according to claim 1-9 any one of them, feature exists
In the feed rod is round steel, and the diffusing layer is petroleum coke layer of charcoal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820357433.6U CN207938833U (en) | 2018-03-15 | 2018-03-15 | Vertical grounding electrode mounting structure for solution cavity geology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820357433.6U CN207938833U (en) | 2018-03-15 | 2018-03-15 | Vertical grounding electrode mounting structure for solution cavity geology |
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| Publication Number | Publication Date |
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| CN207938833U true CN207938833U (en) | 2018-10-02 |
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ID=63654998
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| CN201820357433.6U Active CN207938833U (en) | 2018-03-15 | 2018-03-15 | Vertical grounding electrode mounting structure for solution cavity geology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109455A (en) * | 2021-11-23 | 2022-03-01 | 中铁广州工程局集团深圳工程有限公司 | High-speed railway tunnel construction karst cave treatment device and construction method |
-
2018
- 2018-03-15 CN CN201820357433.6U patent/CN207938833U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109455A (en) * | 2021-11-23 | 2022-03-01 | 中铁广州工程局集团深圳工程有限公司 | High-speed railway tunnel construction karst cave treatment device and construction method |
| CN114109455B (en) * | 2021-11-23 | 2024-05-03 | 中铁广州工程局集团深圳工程有限公司 | Karst cave processing device and method for high-speed railway tunnel construction |
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