CN220266622U - Box transformer foundation structure - Google Patents
Box transformer foundation structure Download PDFInfo
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- CN220266622U CN220266622U CN202321854453.1U CN202321854453U CN220266622U CN 220266622 U CN220266622 U CN 220266622U CN 202321854453 U CN202321854453 U CN 202321854453U CN 220266622 U CN220266622 U CN 220266622U
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- concrete
- box transformer
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- 239000002023 wood Substances 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000010959 steel Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000009423 ventilation Methods 0.000 claims description 12
- 238000005266 casting Methods 0.000 claims description 6
- 238000009412 basement excavation Methods 0.000 claims description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims 2
- 239000002689 soil Substances 0.000 abstract description 12
- 101150054854 POU1F1 gene Proteins 0.000 description 9
- 238000010276 construction Methods 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000004162 soil erosion Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model relates to a power equipment technical field especially relates to a case becomes foundation structure, including excavating in the underground foundation ditch, the foundation ditch bottom is driven into and is had a plurality of stake, and the foundation ditch bottom surface has been passed through concrete placement foundation, and has built basic wall body on the foundation to supply box-type substation to install. By driving the wood piles, the soil is compacted by the wood piles, so that the strength of geological soil is improved, and the deformation and damage of the box-type transformer substation caused by uneven settlement of the foundation pit are prevented.
Description
Technical Field
The application relates to the technical field of power equipment, in particular to a box transformer foundation structure.
Background
The box-type substation is called a preassembled substation or a preassembled substation. The transformer is assembled with functions of voltage reduction, low-voltage distribution and the like, and is installed in a movable steel structure box which is dampproof, rust-proof, dustproof, rat-proof, fireproof, antitheft, heat-insulating, totally-enclosed, and is especially suitable for urban network construction and transformation, and is a brand-new transformer station which rises after a civil engineering transformer station.
The construction of the infrastructure is usually required on the ground before the box substation is installed. At present, because the geological conditions of the foundation structure of the box transformer substation are generally not good, the foundation pit can possibly generate phenomena of inclination fluctuation and the like due to uneven settlement, so that the box transformer substation is deformed due to the uneven settlement of the foundation pit, and the safe operation of the transformer substation is not facilitated. Thus, further improvements can be made.
Disclosure of Invention
In order to prevent uneven settlement from occurring underground, which causes danger to an above-ground transformer substation, the application provides a box transformer foundation structure.
The application provides a case becomes foundation structure adopts following technical scheme:
the utility model provides a case becomes foundation structure, includes the foundation ditch of excavation in the underground, a plurality of stake have been driven into to the foundation ditch bottom, the foundation ditch bottom surface has been through concrete placement foundation, just build on the foundation and have the foundation wall body to supply the box-type substation to install.
By adopting the technical scheme, a plurality of wood piles are driven into the bottom of the foundation pit, on one hand, the soil is compacted by the wood piles, and the strength of geological soil is improved. On the other hand, the strength and the deformation resistance of the wooden piles are better than those of the soil body, so that the effects of reducing deformation and improving the bearing capacity of the foundation pit are achieved, and the box-type transformer substation is prevented from being deformed and damaged due to uneven settlement of the foundation pit.
Optionally, the stake is driven into the underground perpendicularly, the top of stake is higher than the foundation ditch pit bottom, stake bottom end is the taper.
Through adopting above-mentioned technical scheme, on the one hand, after pouring the foundation, the foundation covers the top of stake, and the stake top is fixed with the foundation, increases the bearing capacity of foundation. On the other hand, the bottom end of the stake is tapered, so that the resistance of the stake bottom inserted into the ground is reduced, and the stake is easier to drive into the ground.
Optionally, the foundation comprises a first concrete layer and a second concrete layer poured on the first concrete layer; the first concrete layer is formed by casting C15 concrete, the second concrete layer is formed by casting C25 concrete, and a reinforcement frame is embedded in the second concrete layer, and the reinforcement frame is laid along the horizontal direction of the second concrete layer.
Through adopting above-mentioned technical scheme, on the one hand, adopt C15 concrete to pave the foundation ditch bottom, make first concrete layer keep the horizontality, be convenient for follow-up construction on first concrete layer. On the other hand, the C25 concrete has the characteristics of good fluidity and plasticity, so that the C25 concrete and the steel bar frame are combined to form a second concrete layer, the overall strength and durability of the second concrete layer are increased, and the building subsequently built on the second concrete layer is more stable.
Optionally, the foundation wall body is "hui" style of calligraphy, the foundation wall body is by C25 concrete placement shaping, just the top of foundation wall body is higher than ground, the inside pre-buried cable pipe that has of foundation wall body.
By adopting the technical scheme, the embedded cable pipe provides a safe channel for the cable to be arranged subsequently, and the cable is prevented from being damaged and destroyed in the underground for a long time. When the cable needs to be replaced subsequently, maintenance personnel only need take out the old cable through the embedded cable tube, and the wall or the ground is not required to be damaged.
Optionally, the channel steel is pre-buried at foundation wall body top, the channel steel is laid along foundation wall body top surface and is "hui" style of calligraphy form, just the channel steel is the horizontality.
Through adopting above-mentioned technical scheme, utilize the channel-section steel to bear and share the weight and the load of box-type substation of follow-up installation in basic wall body top to increase basic wall body's whole bearing capacity.
Optionally, tie bars are fixedly connected with the bottom of the channel steel at uniform intervals, and are pre-buried in the foundation wall body.
Through adopting above-mentioned technical scheme, channel-section steel bottom fixed connection tie bar utilizes tie bar and concrete to act together, strengthens the tensile strength of basis wall body and channel-section steel, makes the better box-type substation that bears of basis wall body and channel-section steel.
Optionally, a water collecting port is formed in the middle of the top of the foundation.
Through adopting above-mentioned technical scheme, set up the water collecting port, collect rainwater or other water sources that infiltrate in the case becomes foundation structure, avoid water gathering around the foundation, reduce the influence of surface ponding, prevent rainwater or other water sources to soil erosion and soil subsidence around the foundation, protect the structural integrity of foundation.
Optionally, ventilation openings penetrating through the wall body are formed in the wall bodies on the front side and the rear side of the foundation wall body, the position of each ventilation opening is higher than the ground, and a ventilation net is arranged in each ventilation opening.
Through adopting above-mentioned technical scheme, set up the vent on basic wall body to supply the inside and external ventilation heat dissipation of case change basis, in addition, when need maintain the maintenance, the vent can be regarded as maintainer and import and export, and the maintainer of being convenient for goes into in the case change basis and operates.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the strength and the deformation resistance of the wooden piles are better than those of the soil body, so that the effects of reducing deformation and improving the bearing capacity of the foundation pit are achieved, and the box-type transformer substation is ensured not to be deformed and damaged due to uneven settlement of the foundation pit;
2. the embedded cable tube provides a safe channel for the cable to be arranged subsequently, so that the cable is prevented from being damaged and destroyed in the underground for a long time;
3. the water collecting port is arranged for collecting rainwater or other water sources which permeate into the box transformer foundation structure, so that water is prevented from gathering around the foundation, the influence of surface ponding is reduced, soil erosion and soil settlement of the rainwater or other water sources around the foundation are prevented, and the structural integrity of the foundation is protected.
Drawings
Fig. 1 is a cross-sectional view from the front perspective of the present application.
Reference numerals illustrate:
1. a foundation pit; 2. a wood pile; 3. a foundation base; 31. a first concrete layer; 32. a second concrete layer; 4. a foundation wall; 5. a working well; 51. a pedestrian cover plate; 6. a cable tube; 7. channel steel; 71. a tie bar; 8. a vent; 81. a ventilation screen; 9. a water collecting port; 100. ground surface.
Detailed Description
The present application is described in further detail below in conjunction with fig. 1.
The embodiment of the application discloses a box transformer foundation structure.
Referring to fig. 1, a box transformer foundation structure comprises a foundation pit 1 excavated underground, a plurality of wood piles 2 are driven into the bottom of the foundation pit 1, a foundation 3 is poured on the bottom surface of the foundation pit 1 through concrete, and a foundation wall 4 is built on the foundation 3 for installing a box transformer substation. The working well 5 is built on the left side and the right side of the foundation wall body 4 in the foundation pit 1 in a masonry mode, and the top of the working well 5 is covered by the pedestrian cover plate 51, so that the top of the working well 5 is level with the ground 100.
In the actual construction process, a plurality of wood piles 2 are driven into the bottom of the foundation pit 1, on one hand, the soil is compacted by the wood piles 2, and the strength of geological soil is improved. On the other hand, the strength and deformation resistance of the wooden piles 2 are better than those of soil bodies, so that the effects of reducing deformation and improving the bearing capacity of the foundation pit 1 are achieved, and the box-type transformer substation is ensured not to deform and damage due to uneven settlement of the foundation pit 1.
Specifically, in this embodiment, the piles 2 are loose piles, and the driven piles 2 are disposed vertically downward and are uniformly distributed at intervals. The bottom of the wood pile 2 is in a pointed cone shape, and the top of the wood pile 2 is higher than the pit bottom of the foundation pit 1.
On the one hand, after the foundation 3 is poured, the foundation 3 covers the top ends of the wood piles 2, the top ends of the wood piles 2 are fixed with the foundation 3, and the bearing capacity of the foundation 3 is improved. On the other hand, the bottom end of the stake 2 is arranged in a cone shape, so that the resistance when the bottom of the stake 2 is inserted into the ground is reduced, and the stake 2 is easier to be driven into the ground.
Specifically, in the present embodiment, the foundation bed 3 has a rectangular shape. The foundation 3 includes a first concrete layer 31 and a second concrete layer 32 poured on the first concrete layer 31, and the first concrete layer 31 is formed by C15 concrete pouring. And the second concrete layer 32 is poured and formed by C25 concrete, a reinforcement frame paved along the horizontal direction of the second concrete layer 32 is embedded in the second concrete layer 32, and the reinforcement frame comprises stirrups and longitudinal bars.
On the one hand, the bottom of the foundation pit 1 is paved by adopting C15 concrete, so that the first concrete layer 31 is kept in a horizontal state, and the subsequent construction on the first concrete layer 31 is facilitated. On the other hand, the C25 concrete has the characteristics of good fluidity and plasticity, so that the C25 concrete is combined with the reinforcement frame to form the second concrete layer 32, the overall strength and durability of the second concrete layer 32 are increased, and the building subsequently built on the second concrete layer 32 is more stable.
Specifically, in this embodiment, the foundation wall 4 is formed by casting C25 concrete, the foundation wall 4 is in a shape of a "back" and the height of the foundation wall 4 is higher than the ground 100, so that the box-type substation can be installed. The left and right sides of the foundation wall body 4 are pre-embedded with a plurality of cable tubes 6. The top of the foundation wall body 4 is embedded with a channel steel 7 in a shape like a Chinese character 'Hui', and the surface of the channel steel 7 is higher than the top surface of the foundation wall body 4. The bottom of the channel steel 7 is fixedly welded with Y-shaped tie bars 71, the tie bars 71 are uniformly arranged at intervals along the length direction of the channel steel 7, and the tie bars 71 are pre-buried in the foundation wall 4.
On the one hand, through pre-buried cable pipe 6, make the wiring of cable more standard and orderly, reduced the alternately and entanglement between the cable, reduced cable fault and short circuit's risk, improved cable system's security and reliability, avoided the cable conductor to receive external environment's harm. On the other hand, set up channel-section steel 7 and channel-section steel 7 bottom fixed connection tie bar 71 at the basic wall body 4 top surface, utilize channel-section steel 7 and tie bar 71 to bear and share the weight and the load of box-type substation of follow-up installation in basic wall body 4 top. At the same time, the tensile strength of the foundation wall 4 and the channel steel 7 is enhanced, so that the overall bearing capacity of the foundation wall 4 is increased.
Specifically, in this embodiment, the front and rear wall bodies of the base wall body 4 are provided with rectangular ventilation openings 8 penetrating through the wall body, and ventilation nets 81 are detachably installed in the ventilation openings 8 in a blocking manner.
On one hand, the ventilation opening 8 is utilized to ventilate and dissipate heat between the inside of the box transformer foundation and the outside, so that ventilation circulation is maintained. On the other hand, the vent 8 can also be used as a safety channel, and when maintenance and overhaul are needed, the vent 8 can provide a safe access opening, so that workers can conveniently enter the box transformer foundation to perform necessary operations.
Specifically, in this embodiment, the water collecting ports 9 are formed in the middle position of the foundation 3 and in the bottom positions of the inner portions of the working wells 5 on the left and right sides. Rainwater or other water sources permeated into the box transformer foundation structure are collected by the water collecting port 9, water is prevented from being gathered around the foundation 3, the influence of accumulated water on the ground 100 is reduced, soil erosion and soil settlement around the foundation 3 are prevented by the rainwater or other water sources, and the structural integrity of the foundation 3 is protected.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (8)
1. A box transformer foundation structure which characterized in that: including excavation in underground foundation ditch (1), a plurality of stake (2) have been driven into to foundation ditch (1) bottom, foundation ditch (1) bottom surface has passed through concrete placement foundation (3), just build on foundation (3) foundation wall body (4) to supply box-type substation to install.
2. A box transformer foundation structure according to claim 1, characterized in that: the wood pile (2) is vertically driven into the ground, the top end of the wood pile (2) is higher than the pit bottom of the foundation pit (1), and the bottom end of the wood pile (2) is conical.
3. A box transformer foundation structure according to claim 1, characterized in that: the foundation (3) comprises a first concrete layer (31) and a second concrete layer (32) poured on the first concrete layer (31); the first concrete layer (31) is formed by casting C15 concrete, the second concrete layer (32) is formed by casting C25 concrete, a reinforcing steel bar frame is embedded in the second concrete layer (32), and the reinforcing steel bar frame is laid along the horizontal direction of the second concrete layer (32).
4. A box transformer foundation structure according to claim 1, characterized in that: the foundation wall body (4) is in a shape like a Chinese character 'hui', the foundation wall body (4) is formed by casting C25 concrete, the top of the foundation wall body (4) is higher than the ground (100), and a cable tube (6) is embedded in the foundation wall body (4).
5. A box transformer foundation structure according to claim 4, wherein: the channel steel (7) is pre-buried at foundation wall body (4) top, channel steel (7) are laid along foundation wall body (4) top surface and are "hui" style of calligraphy form, just channel steel (7) are the horizontality.
6. A box transformer foundation structure according to claim 5, characterized in that: tie bars (71) are fixedly connected to the bottom of the channel steel (7) at equal intervals, and the tie bars (71) are pre-buried in the foundation wall body (4).
7. A box transformer substation infrastructure according to claim 3, characterized in that: a water collecting port (9) is formed in the middle of the top of the foundation (3).
8. A box transformer foundation structure according to claim 4, wherein: the wall body of both sides all has seted up vent (8) that run through the wall body around basic wall body (4), vent (8) position is higher than ground (100), just install ventilation net (81) in vent (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321854453.1U CN220266622U (en) | 2023-07-13 | 2023-07-13 | Box transformer foundation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321854453.1U CN220266622U (en) | 2023-07-13 | 2023-07-13 | Box transformer foundation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220266622U true CN220266622U (en) | 2023-12-29 |
Family
ID=89312955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321854453.1U Active CN220266622U (en) | 2023-07-13 | 2023-07-13 | Box transformer foundation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220266622U (en) |
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2023
- 2023-07-13 CN CN202321854453.1U patent/CN220266622U/en active Active
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