CN106972286A - A kind of monitoring bar ground ground structure and construction method - Google Patents
A kind of monitoring bar ground ground structure and construction method Download PDFInfo
- Publication number
- CN106972286A CN106972286A CN201710233093.6A CN201710233093A CN106972286A CN 106972286 A CN106972286 A CN 106972286A CN 201710233093 A CN201710233093 A CN 201710233093A CN 106972286 A CN106972286 A CN 106972286A
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- CN
- China
- Prior art keywords
- layer
- earth mat
- ground
- cage
- surface dust
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/26—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for engaging or disengaging the two parts of a coupling device
Abstract
The invention belongs to ground grounding construction technical field, a kind of monitoring bar ground ground structure and construction method are disclosed, it solves all difficulties, the technical problem of earthing mode complexity that original grounding construction method is brought.The cage that the structure is connected including locating below ground level with monitoring bar, the band iron welded with the cage, the cage is cheated provided with square foundation further below, and the foundation pit bottom surface and at least two sides are provided with earth mat, and the earth mat and band iron are welded.Specific implementation steps are as follows：1）, one layer of earth mat is laid in the foundation pit finished has been excavated, welded using band iron with earth mat, the uniform place mat surface dust on the earth mat laid, tamp surface dust；2）, according to the specification of foundation pit, place suitable cage；3）, abundant welding cage and band iron.It is small with grounding resistance, construct simple and convenient, security is good, facilitates the characteristics of other infrastructure are constructed.
Description
Technical field
The invention belongs to ground earth work technical field, more particularly to a kind of monitoring bar ground ground structure and construction party
Method.
Background technology
According to safety standard, during outdoor carry out vertical rod, the grounding resistance of the body of rod should be less than 10 ohm.In conventional manner,
The foundation of the body of rod needs to carry out ground connection operation, i.e., using the angle steel that three thickness are 5mm, using external force mode, pound it
Enter in soil, and the angle steel pounded in soil is fully welded with basic cage, by being grounded the connection of cage and the body of rod,
The grounding resistance of such body of rod is about 8 ohm, not up to the purpose to the body of rod adequately grounded.
But when urban ground is constructed, because the situation of below ground is relative complex, there is various water pipelines, power pipe
Road, gas piping, cable run etc. spread all over each street, and the mode tamped the foundations solid is often to hidden all kinds of in deep soil
Pipeline causes damage difficult to the appraisal, not only reduces the grounding resistance of the body of rod, and adds the complexity of ground connection operation
Property, add construction cost.
The content of the invention
The present invention provides a kind of monitoring bar ground ground structure and construction method, with grounding resistance is small, construct simple side
Just, security is good, the characteristics of facilitate the construction of other infrastructure.
The technical solution adopted by the present invention is：A kind of monitoring bar ground ground structure, including locate below ground level and monitor
The cage of bar connection, the band iron welded with the cage, the cage is cheated provided with square foundation further below, the foundation pit bottom surface
And at least two side be provided with earth mat, the earth mat and band iron are welded.
Preferably, including two U-shaped earth mats, being arranged in the foundation pit in mounted on top.
Preferably, surface dust and friction reducer are laid in the upside of the earth mat successively.
A kind of construction method of monitoring bar ground ground structure, step is as follows：
1）, one layer of earth mat is laid in the foundation pit finished has been excavated, welded using band iron with earth mat, what is laid
Uniform place mat surface dust above earth mat, tamps surface dust；
2）, according to the specification of foundation pit, place suitable cage；
3）, abundant welding cage and band iron, it is desirable to must full weld.
Preferably, the step 1）For the earth mat includes two U-shaped earth mats, first layer earth mat is first laid, using flat
Iron is welded with first layer earth mat, place mat first layer surface dust, and uniformly first layer friction reducer has been spread above first layer surface dust；Ram
Real first layer surface dust and first layer friction reducer；Second layer earth mat is laid again, is welded using band iron with second layer earth mat, place mat
Second layer surface dust, uniformly second layer friction reducer has been spread above second layer surface dust；Tamp second layer surface dust and second layer friction reducer.
Preferably, the structure lays gross thickness P for 1000mm, square foundation hole size be 1000mm ×
1000mm×1000mm。
Preferably, the earth mat steel wire diameter is 6mm, spacing is 50mm × 50mm；The band iron is welded with earth mat
Contact requires full weld, and is no less than welding at three.Pad is firm, and reliable, electrical contact is good, and solder joint is carried out with pitch
Anti-corrosion.
Preferably, the pad between the cage and band iron is no less than at three.
Preferably, the thickness of every layer of surface dust is 500mm.
It is using the beneficial effect produced by above-mentioned technical proposal：Such a monitoring bar ground ground structure and its construction party
Method, on the premise of ensureing that grounding resistance meets safety standard, one is, using the earth mat laid, to increase contact area, is reduced
Resistivity；Grounding resistance average value is less than the 50% of the grounding resistance for the mode that tamped the foundations solid under equal conditions at every 100；Two be to make
With new earthing material, better than the index of correlation of specification, the requirement of body of rod grounding resistance is met, can farthest be avoided
The various risks that original earthing mode is brought.Three be that the construction of this construction method is simple and convenient to operate, and safely, effectively.Lay
Bi Hou, passes through substantial amounts of test, such a monitoring bar ground ground structure and method in the use in later stage, and average earth resistance is small
In 4 ohm, the requirement of the ground grounding resistance of monitoring bar is met.
Brief description of the drawings
Fig. 1 is a kind of monitoring bar ground ground structure schematic diagram of the invention；
Fig. 2 is the A portions enlarged drawing in Fig. 1；
Fig. 3 is a kind of flow chart of the construction method of monitoring bar ground ground structure of the invention.
Reference：1st, foundation pit；2nd, earth mat；3rd, band iron；4th, cage；5th, surface dust；6th, friction reducer；21st, first layer earth mat；
22nd, second layer earth mat；51st, first layer surface dust；52nd, second layer surface dust；61；First layer friction reducer；62nd, second layer friction reducer.
Embodiment
The technical scheme in the embodiment of the present invention is clearly and completely retouched with reference to the accompanying drawings and detailed description
State, many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still the present invention can also be used
Other are different from other manner described here to implement, and those skilled in the art can be in the situation without prejudice to intension of the present invention
Under do similar popularization, therefore the present invention is not limited by following public specific embodiment.
For sake of convenience, hereinafter the left and right, upper and lower of alleged " left side " " right side " " on " " under " and accompanying drawing in itself to one
Cause, but the structure to the present invention does not play restriction effect.
Refer to shown in Fig. 1, Fig. 2, Fig. 1 for the present invention a kind of monitoring bar ground ground structure, including positioned at ground with
The lower cage 4 being connected with monitoring bar, the band iron 3 welded with the cage 4, the band iron 3 around the cage 4 with uniformly welding
Connect, and pad is no less than at three.The cage 4 is further below provided with square foundation hole 1, the bottom surface of foundation pit 1 and at least two
Individual side is provided with earth mat 2, and the earth mat 2 is welded with band iron 3, and pad is no less than at three.The band iron 3 is from top to bottom successively
The two sides of the earth mat 2 are welded on, pad makes the earth mat 2 be filled with band iron 3 in the middle of the two sides of earth mat 2
Tap is touched, it is desirable to which pad will firmly, reliably, and electrical contact is good, smears pad with pitch after having welded, carries out anti-corrosion
Work.
Preferably, the structure of earth mat 2 is U-shaped, a diameter of 6mm of firm silk of the earth mat 2, spacing be 50mm ×
50mm, the length of earth mat 2 of the both sides is less than 500mm, in the light of actual conditions, and the first layer earth mat 21 is uniformly laid in described
The bottom of foundation pit 1 and side, uniformly lay surface dust 51 in the upside of the first layer earth mat 21, are uniformly laid on surface dust 51
Friction reducer 61；Then second layer earth mat 22 is laid again, and second layer surface dust 52 is uniformly laid in the upside of the second layer earth mat 22,
Uniformly second layer friction reducer 62 is laid on second layer surface dust 52；The earth mat 2 is in the foundation pit 1 in two layers of cloth up and down
Put.
Preferably, surface dust 5 and friction reducer 6 are laid in the upside of the earth mat 2 successively.The friction reducer 6 will when laying
In strict accordance with requiring, fully contact, be in close contact with metallic ground body with the edge of earth mat, form sufficiently large current flowing
Face, while can also be permeated to surrounding soil, reduces the resistivity of surrounding soil, and one is formed around grounding body and is changed gently
Low resistance region.
As shown in figure 3, the construction method to a kind of monitoring bar ground ground structure of the present invention is illustrated below, specifically
Implementation steps are as follows：
1）, first layer earth mat 21 is laid in the foundation pit finished has been excavated, welded using band iron 3 with first layer earth mat 21
Connect；The specification of the first layer earth mat 21 is generally 1000mm × 1000mm, can according to the size of the foundation pit 1 of actual excavation
It is placed on folding in foundation pit 1, while can realize that the high-volume of earth mat 2 makes.
2）, on the first layer earth mat 21 laid uniform place mat first layer surface dust 51；The first layer surface dust 51 is spread
Pad is uniform, and density is homogeneous.
3）, in the top of the first layer surface dust 51 uniformly spread first layer friction reducer 61；The first layer friction reducer 61 has
The effect of reduction resistivity, will uniformly lay, surface dust is hidden completely well.
4）, compacting first layer surface dust 51 and first layer friction reducer 61；Compacting be in order to more utilize soil property effect, strengthen
With the cooperation of surrounding soil, stability fundamental.
5）, in first layer surface dust 51 and the top of first layer friction reducer 62 place second layer earth mat 22；In foundation pit 1,
Tamp the first layer surface dust 51 finished and place second layer earth mat 22 above first layer friction reducer 62 again, the second layer
The specification of net 22 is consistent with the specification of first layer earth mat 21.
6）, on second layer earth mat 22 place mat second layer surface dust 52, spread second layer friction reducer 62, in strict accordance with require ram
It is real, gross thickness is laid for 1000mm, and the gross thickness after finally compacting is finished ensures 1000mm.
7）, according to the specification of the foundation pit 1, place suitable cage 4；In the foundation pit 1 after finally having tamped, root
Factually border specification, places suitable cage 4, and the cage 4 will be supported the use with foundation pit 1.
8）, abundant welding cage 4 and band iron 3, it is desirable to must full weld.In order to ensure the quality of construction, after placement cage 4 is complete
To be welded and fixed with being erected at the band iron at edge in foundation ditch 1.
Preferably, the described a diameter of 6mm of earth mat 2, spacing is 50mm × 50mm.The band iron 3 is welded with earth mat 2
Contact requires full weld, and is no less than welding at three.Pad is firm, and reliable, electrical contact is good, and solder joint is carried out with pitch
Anti-corrosion.Using the earth mat 2 of this specification, it is adapted in the construction without the foundation pit 1 of specification, it is convenient, simple to operate, directly
It is directly placed into after the earth mat 2 and band iron 3 have been welded in foundation pit.
Preferably, uniform place mat surface dust 5 above described earth mat 2, thickness is 500mm.Ensure and lay surface dust 5 twice
Thickness be 500mm, total applied thickness be 1000mm, the gross thickness that this kind of ground structure is eventually formed be 1000mm, describedly
The specification of net 2 is 1000mm × 1000mm, it is ensured that the gross thickness of this kind of ground structure eventually formed and the bottom of foundation pit 1
Size is consistent, square arrangement.
Preferably, friction reducer 6 has uniformly been spread in the top of surface dust 5, the friction reducer 6 will cover surface dust 5 substantially.It is described
Friction reducer 6 will will ensure fully to contact when laying in strict accordance with requiring with the edge of the earth mat 2, tight with metallic ground body
Contiguity is touched, and reduces the resistivity of surrounding soil.
Preferably, to ensure the abundant contact for the band iron 3 and cage 4 being connected with earth mat 2, it is necessary in band iron 3 and cage 4
Contact position welding, must be requested that at full weld, pad at least three.
The item that a kind of monitoring bar ground grounding construction method of the present invention should be noted：
In the construction of foundation pit 1, before second layer earth mat 22 is laid, first layer earth mat 21, the first layer surface dust 51 laid is checked
And the flatness of first layer friction reducer 61, the first layer earth mat 21 of dislocation, displacement is adjusted；It was found that there is the earth mat 2 got rusty
The rusty scale on removing surface is needed, antirust paint etc. is smeared again；After surface dust 5 lays and finished, friction reducer 6 is spread in time, it is ensured that drop resistance
Agent 6 spread fertilizer over the fields area be more than surface dust 5 area；Avoid having moisture, the entrance of rainfall, first layer knot when friction reducer 6 are spread
Structure can lay the second Rotating fields after having laid, and be laid with also requiring that.
It is using the beneficial effect produced by above-mentioned technical proposal：Such a monitoring bar ground ground structure and its construction party
Method, on the premise of ensureing that grounding resistance meets safety standard, one is, using the earth mat laid, to increase contact area, is reduced
Resistivity；Grounding resistance average value is less than the 50% of the grounding resistance for the mode that tamped the foundations solid under equal conditions at every 100；Two be to make
With new earthing material, better than the index of correlation of specification, the requirement of body of rod grounding resistance is met, can farthest be avoided
The various risks that original earthing mode is brought.Three be that the construction of this construction method is simple and convenient to operate, and safely, effectively.Lay
Bi Hou, passes through substantial amounts of test, such a monitoring bar ground ground structure and method in the use in later stage, and average earth resistance is small
In 4 ohm, the requirement of the ground grounding resistance of monitoring bar is met.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (9)
1. a kind of monitoring bar ground ground structure, including the cage being connected with monitoring bar that locates below ground level（4）, with the cage
（4）The band iron of welding（3）, it is characterised in that：The cage（4）Cheated further below provided with square foundation（1）, the foundation pit（1）
Bottom surface and at least two sides are provided with earth mat（2）, the earth mat（2）With band iron（3）Welding.
2. a kind of monitoring bar ground ground structure according to claim 1, it is characterised in that：Including two U-shaped earth mats
（2）, in the foundation pit（1）It is interior to be arranged in mounted on top.
3. a kind of monitoring bar ground ground structure according to claim 1 or 2, it is characterised in that：The earth mat（2）It is upper
Surface dust is laid in side successively（5）And friction reducer（6）.
4. a kind of construction method of monitoring bar ground ground structure as described in profit requires 1, it is characterised in that：Step is as follows,
1）, excavating the foundation pit that finishes（1）In lay one layer of earth mat（2）, use band iron（3）With earth mat（2）Welded
Connect, in the earth mat laid（2）Uniform place mat surface dust above（5）, tamp surface dust（5）；
2）, according to foundation pit（1）Specification, place suitable cage（4）；
3）, fully weld cage（4）And band iron（3）It is required that must full weld.
5. a kind of construction method of monitoring bar ground ground structure according to claim 4, it is characterised in that：The step
1）For the earth mat（2）Including two U-shaped earth mats（2）, first lay first layer earth mat（21）, use band iron（3）With first layer
Net（21）Welded, place mat first layer surface dust（51）, in first layer surface dust（51）First layer friction reducer is uniformly spread in top
（61）；Tamp first layer surface dust（51）And first layer friction reducer（61）；Second layer earth mat is laid again（22）, use band iron（3）With
Second layer earth mat（22）Welded, place mat second layer surface dust（52）, in second layer surface dust（52）The second layer is uniformly spread in top
Friction reducer（62）；Tamp second layer surface dust（52）And second layer friction reducer（62）.
6. a kind of construction method of monitoring bar ground ground structure according to claim 4, it is characterised in that：The structure
Lay gross thickness P for 1000mm, the square foundation hole（1）Size is 1000mm × 1000mm × 1000mm.
7. a kind of construction method of monitoring bar ground ground structure according to claim 4, it is characterised in that：The earth mat
（2）Steel wire diameter is 6mm, and spacing is 50mm × 50mm；The band iron carries out pad with earth mat and requires full weld, and no less than three
Place's welding；Pad is firm, and reliable, electrical contact is good, and solder joint carries out anti-corrosion with pitch.
8. a kind of construction method of monitoring bar ground ground structure according to claim 4, it is characterised in that：The cage
（4）And band iron（3）Between pad no less than at three.
9. a kind of construction method of monitoring bar ground ground structure according to claim 5, it is characterised in that：It is described every layer
Surface dust（5）Thickness be 500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710233093.6A CN106972286B (en) | 2017-04-11 | 2017-04-11 | Monitoring rod foundation grounding structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710233093.6A CN106972286B (en) | 2017-04-11 | 2017-04-11 | Monitoring rod foundation grounding structure and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106972286A true CN106972286A (en) | 2017-07-21 |
| CN106972286B CN106972286B (en) | 2020-12-08 |
Family
ID=59337191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710233093.6A Active CN106972286B (en) | 2017-04-11 | 2017-04-11 | Monitoring rod foundation grounding structure and construction method |
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|---|---|
| CN106972286B (en) | 2020-12-08 |
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