CN205875130U - Reduce underground substation ground resistance's building pile foundation - Google Patents
Reduce underground substation ground resistance's building pile foundation Download PDFInfo
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- CN205875130U CN205875130U CN201620870760.2U CN201620870760U CN205875130U CN 205875130 U CN205875130 U CN 205875130U CN 201620870760 U CN201620870760 U CN 201620870760U CN 205875130 U CN205875130 U CN 205875130U
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- post
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- underground substation
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Abstract
The utility model discloses a reduce underground substation ground resistance's building pile foundation, indulge in the post muscle, hoop locate indulge in the post muscle peripheral and with the post in muscle welded spiral hoop from north to south, be equipped with first connecting piece and second connecting piece on the interior muscle from north to south of post, first connecting piece is the U type, the one end and the interior muscle of indulging of post of first connecting piece weld, the other end and the welding of indoor ground connection main line of first connecting piece, the second connecting piece is the L type, the one end and the interior muscle of indulging of post of second connecting piece weld, the second connecting piece other end and each floor slab muscle net welding. The beneficial effects of the utility model are that: (1 )Utilize the good ground connection performance of underground substation building pile foundation, natural earthing pole as in the secret transformer has reduced underground substation ground resistance, (2 )Underground substation building pile foundation replaces artifical earthing pole as the nature earthing pole, reduces artifical earthing pole and uses quantity, saves the grounding material quantity.
Description
Technical field
This utility model relates to power system transformer substation grounding design technical field, is specifically related to a kind of reduction underground power transformation
Stand the buildings pile of earth resistance.
Background technology
Soil rate district higher, it will usually the station body earth resistance causing underground substation is relatively big, if setting the most routinely
Meter method lays horizontal grounding net, then earth resistance cannot meet specification (standard GB/T 50065-2011 " alternating-current electric device
Grounding design specification ") requirement, conventional method is to squeeze into substantial amounts of vertical grounding electrode, but when earthing pole density increases to one
Determining degree, its shielding action will increase, and causes the effect of earthing pole significantly to weaken, and the earthing pole of a part does not rises
Effect, causes waste of material, need to beat ground connection deep-well if requirement can't be reached or use friction reducer, and cost is the highest.
The feature of underground substation is that pile foundation is very deep, quantity is big, and the reinforcing bar in pile foundation is good conductor.Every pile foundation
Length all more than 50 meters, in depth under, generally, the lowest in this deep soil resistivity, and soil moisture content is higher,
The concrete moisture content of pile foundation is inevitable the highest, and electric conductivity is good, according to GB 50057-2010 " building lightning protection design rule
Model " content described in striped, the pile foundation resistance of actual measurement is generally within 10 ohm.Therefore can be that earthing pole uses by pile foundation,
Transformation pile foundation, makes pile foundation be reliably connected with main grounding grid in underground substation, utilizes pile foundation to replace as natural grounding pole artificial
Earthing pole, reduces underground substation earth resistance.
Utility model content
The purpose of this utility model is to overcome deficiency of the prior art, it is provided that a kind of reduction underground substation ground connection
The buildings pile of resistance, utilizes the ground connection performance that underground substation buildings pile is good, by itself and underground substation master
The connection of grounded screen, reaches to reduce the purpose of underground substation earth resistance.
For solving above-mentioned technical problem, the technical solution of the utility model is: a kind of reduction underground substation earth resistance
Buildings pile, the spiral hoop that in being located at post including muscle vertical in post, hoop vertical muscle is peripheral and muscle vertical with in post welds, in described post
Vertical muscle is provided with the first connector and the second connector, and described first connector is U-shaped, one end of described first connector and post
Interior vertical muscle welding, the other end of described first connector welds with indoor ground connection main line, and described second connector is L-type, described
One end of second connector muscle vertical with in post welds, and the described second connector other end welds with each layer floor reinforced bar mesh.
Preferably, described second connector is distributed along pile foundation excircle uniform intervals.
The beneficial effects of the utility model are:
(1) the ground connection performance that underground substation buildings pile is good is utilized, as the natural grounding pole in the power transformation of underground,
Decrease underground substation earth resistance；
(2) underground substation buildings pile substitutes artificial earthing pole as natural grounding pole, reduces artificial earthing pole and makes
By quantity, save earthing material consumption.
Below with reference to accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is made furtherly
Bright, to be fully understood from the purpose of this utility model, feature and effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 be of the present utility model along A-A to sectional view.
In accompanying drawing: 1, vertical muscle in post；2, spiral hoop；3, the first connector；4, the second connector.
Detailed description of the invention
As it is shown in figure 1, specific embodiment of the utility model, a kind of building pile reducing underground substation earth resistance
Base, the spiral hoop 2 that in being located at post including muscle 1 vertical in post, hoop, vertical muscle 1 periphery and muscle 1 vertical with in post weld, vertical muscle 1 in described post
Being provided with the first connector 3 and the second connector 4, described first connector 3 is U-shaped, one end of described first connector 3 and post
Interior vertical muscle 1 welds, and the other end of described first connector 3 welds with indoor ground connection main line, and described second connector 4 is L-type, institute
One end muscle 1 vertical with in post stating the second connector 4 welds, and described second connector 4 other end welds with each layer floor reinforced bar mesh,
Described second connector 4 is distributed along pile foundation excircle uniform intervals.
Vertical muscle in pile foundation by the first connector 3 nearby with indoor ground connection main line or main grounding grid along drawing that pile foundation is laid
Line uses thermofussion welding reliably to weld, and pad need to be positioned in air, must not be positioned in concrete or soil.
Vertical muscle in pile foundation is used with the bar-mat reinforcement in each floor plate and the big base plate of building nearby by the second connector 4
Common electric welding is reliably welded, and pad is uniformly distributed around pile foundation at every floor plate or building big base plate domestic demand as far as possible, and often
Layer is no less than 8.
Utilize the ground connection performance that underground substation buildings pile is good, as the natural grounding pole in the power transformation of underground, subtract
Lack underground substation earth resistance；Underground substation buildings pile substitutes artificial earthing pole as natural grounding pole, reduces
Artificial earthing pole usage quantity, saves earthing material consumption.
Preferred embodiment of the present utility model described in detail above.Should be appreciated that the ordinary skill people of this area
Member just can make many modifications and variations according to design of the present utility model without creative work.Therefore, all technology neck
In territory, technical staff passes through logical analysis, reasoning or limited reality on the basis of existing technology according to design of the present utility model
Test available technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (2)
1. reduce a buildings pile for underground substation earth resistance, vertical muscle in being located at post including muscle (1) vertical in post, hoop
(1) spiral hoop (2) that peripheral and vertical with in post muscle (1) welds, it is characterised in that: in described post, vertical muscle (1) is provided with first even
Fitting (3) and the second connector (4), described first connector (3) is U-shaped, and one end of described first connector (3) is vertical with in post
Muscle (1) welds, and the other end of described first connector (3) welds with indoor ground connection main line, and described second connector (4) is L-type,
One end of described second connector (4) muscle (1) vertical with in post welds, described second connector (4) other end and each floor slab
Muscle net welds.
The buildings pile of reduction underground substation the most according to claim 1 earth resistance, it is characterised in that: described
Two connectors (4) are distributed along pile foundation excircle uniform intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620870760.2U CN205875130U (en) | 2016-08-12 | 2016-08-12 | Reduce underground substation ground resistance's building pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620870760.2U CN205875130U (en) | 2016-08-12 | 2016-08-12 | Reduce underground substation ground resistance's building pile foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205875130U true CN205875130U (en) | 2017-01-11 |
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ID=57702584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620870760.2U Active CN205875130U (en) | 2016-08-12 | 2016-08-12 | Reduce underground substation ground resistance's building pile foundation |
Country Status (1)
| Country | Link |
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| CN (1) | CN205875130U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265800A (en) * | 2019-05-21 | 2019-09-20 | 中国建筑第八工程局有限公司 | Based on the earthing or grounding means and its construction method under the conditions of plate brad supporting |
| CN114465026A (en) * | 2021-12-22 | 2022-05-10 | 西北核技术研究所 | Impact current grounding device and method |
-
2016
- 2016-08-12 CN CN201620870760.2U patent/CN205875130U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265800A (en) * | 2019-05-21 | 2019-09-20 | 中国建筑第八工程局有限公司 | Based on the earthing or grounding means and its construction method under the conditions of plate brad supporting |
| CN114465026A (en) * | 2021-12-22 | 2022-05-10 | 西北核技术研究所 | Impact current grounding device and method |
| CN114465026B (en) * | 2021-12-22 | 2023-07-21 | 西北核技术研究所 | Impact current grounding device and method |
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