CN202881967U - Transmission tower plate type three-cable base structure - Google Patents
Transmission tower plate type three-cable base structure Download PDFInfo
- Publication number
- CN202881967U CN202881967U CN 201220519700 CN201220519700U CN202881967U CN 202881967 U CN202881967 U CN 202881967U CN 201220519700 CN201220519700 CN 201220519700 CN 201220519700 U CN201220519700 U CN 201220519700U CN 202881967 U CN202881967 U CN 202881967U
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- upper plate
- rope
- transmission tower
- plate
- steel strand
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000004575 stone Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 11
- 238000010276 construction Methods 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a transmission tower plate type three-cable base structure which comprises an upper plate laid on the ground and three lower plates buried underground. The transmission tower plate type three-cable base structure is characterized in that the upper plate is connected with the lower plates respectively through steel twisted ropes, the three lower plate are arranged in a slotted mode, the length of the steel twisted rope in the middle is larger than that of the steel twisted ropes on two sides, and the lengths of the steel twisted ropes on two sides are equal. The upper plate can be used as a base protection cap, so that the transmission tower plate type three-cable base structure has the advantages of being perfect and clear in transmission boundary condition, fully playing physical and mechanical performance of all materials, saving invest, being high in safety reliability and convenient to construct and the like. When physical and mechanical performance of line foundation soil is poor, and up-pull load is large, three anchor cables can greatly improve base safety and reliability. Thus, the base structure is suitable for loess regions with large up-pull load and poor foundation soil physical and mechanical performance, for example line bases of more than 330kV voltage class.
Description
Technical field
The utility model is a kind of transmission tower equipment, specifically the basic fixed structure of transmission tower.
Background technology
At large thickness Canal in Loess Area, pole and tower foundation mainly adopts " heavy excavation " foundation class, draws and dig spread foundation class, explosion expanded piling foundation class basis." heavy excavation " foundation class means and is embedded in the foundation ditch that digs in advance and with the basis of backfill compacting, it be backfill with disturbance consist of the resistance to plucking soil body keep the basis on pull out stable.Draw and dig the spread foundation class and mean with concrete and cage of reinforcement and be poured into machinery or manually draw basis in the native tire that scrapes out, it be the resistance to plucking soil body with natural formation keep the basis on pull out stable.The explosion expanded piling foundation class means with concrete and cage of reinforcement and is poured into the stub of the bellend in the native tire of explosive expansion moulding basis, and its resistance to plucking soil body is substantially close to intact natural soil.
The key dimension of " heavy excavation " foundation class determines by its resistance to plucking stability the subject of knowledge and the object of knowledge, in order to pull out the requirement of stability on satisfying, must strengthen key dimension, has improved foundation cost, because spoir is more, environmental disruption is also larger simultaneously.Draw and dig in the cohesive soil that the spread foundation class is suitable for anhydrous infiltration foundation ditch, the pile foundation regulation and stipulation adopts pile foundation such as the basis simultaneously, and essential bearing stratum need pass collapsible loess, so this basis is not suitable for large thickness Collapsible Loess District.The large and technique of explosion expanded piling foundation class difficulty of construction and dimensional gaughing have certain difficulty.
The utility model content
In order to address the above problem, the utility model provides a kind of board-like three rope foundation structures of transmission tower that are applicable to large thick Canal in Loess Area.
The purpose of this utility model is come specific implementation by the following technical programs:
The board-like three rope foundation structures of transmission tower, comprise that a upper plate that is laid on the earth's surface and three are embedded in underground lower plate, connect by a steel strand rope respectively between described upper plate and each lower plate, three described lower plates are the yi word pattern setting, the length of the steel strand rope in the middle of being positioned at is greater than the length of the steel strand rope that is positioned at both sides, the equal in length of the steel strand rope of both sides, the described steel strand rope of between upper plate and lower plate each outside is provided with a gum cover pipe, the two ends of each described gum cover pipe contact with a lower plate with upper plate respectively, are filled with anticorrosive packing in described gum cover pipe inside; The two ends of described steel strand rope are respectively equipped with an anchor head, are provided with the carrying backing plate between the anchor head on top and the upper plate, are provided with lower carrying backing plate between the anchor head of bottom and the lower plate; Described carrying backing plate upper in the middle of being positioned at has four stone bolt that are arranged symmetrically with, and described stone bolt runs through upper plate, and is fixedly connected with the cast backing plate that is cast in the upper plate bottom surface.Described upper plate, lower plate are the Reinforced Concrete Materials moulding by casting.
Described upper plate adopts rectangular structure, and the area of upper plate is much larger than the area sum of three lower plates.
The board-like three rope foundation structures of the transmission tower that the utility model provides; upper plate uses as the foundation to protect cap; having the power transmission fringe conditions improves distinct; give full play to the physical and mechanical property of various materials; save investment; the advantages such as the high and easy construction of safety reliability; when circuit foundation soil physico-mechanical properties poor; on pull out load when large; three rope foundation structures are compared with two rope foundation structures with single rope can reduce cutting depth; owing to adopting 3 anchor cables, therefore greatly improve basic safety and reliability, so to be applicable to uplift force large on this basis; the Canal in Loess Area that the foundation soil physico-mechanical properties is poor is such as 330kV above line tower foundation.
This foundation structure is flexible foundation, adopts this foundation structure can improve the ability of shaft tower opposing dynamic load; Simultaneously can reduce the spoir amount, preserve the ecological environment; And convenient disassembly, do not re-use such as this basis, steel strand directly can be cut off, excavate upper plate and get final product, reduced basic projects amount; And the double ground wire of doing of Load Transfer mechanism can be used.This foundation structure Load Transfer is clear and definite, and structural calculation and construction are easier.Use three anchor cable bases can improve basic reliability, when anchor cable produces surrender or destroys, other two anchor cables can bear the basis on pull out load, in design, can require the uplift resistance of every anchor cable to satisfy the requirement that half pulls out load.
Description of drawings
The below is described in further detail the utility model with embodiment with reference to the accompanying drawings.
Fig. 1 is the structure chart of the board-like three rope foundation structures of the described transmission tower of the utility model embodiment.
Fig. 2 is the earth's surface top view of the board-like three rope foundation structures of the described transmission tower of the utility model embodiment.
The specific embodiment
Shown in Fig. 1-2, the board-like three rope foundation structures of the described transmission tower of the utility model embodiment, comprise that a upper plate 1 that is laid on the earth's surface and three are embedded in underground lower plate 2, connect by a steel strand rope 3 respectively between described upper plate 1 and each lower plate 2, three described lower plates 2 are the yi word pattern setting, the length of the steel strand rope 3 in the middle of being positioned at is greater than the length of the steel strand rope 3 that is positioned at both sides, the equal in length of the steel strand rope 3 of both sides, the described steel strand rope of between upper plate 1 and lower plate 2 each 3 outsides are provided with a gum cover pipe 4, the two ends of each described gum cover pipe 4 contact with a lower plate 2 with upper plate 1 respectively, are filled with anticorrosive packing 5 in described gum cover pipe 4 inside; The two ends of described steel strand rope 3 are respectively equipped with an anchor head 61,62, are provided with carrying backing plate 71 between the anchor head 61 on top and the upper plate 1, are provided with lower carrying backing plate 72 between the anchor head 62 of bottom and the lower plate 2; Described carrying backing plate 61 uppers in the middle of being positioned at have four stone bolt that are arranged symmetrically with 8, and described stone bolt 8 runs through upper plate 1, and is fixedly connected with the cast backing plate 9 that is cast in upper plate 1 bottom surface.Described upper plate 1, lower plate 2 are the Reinforced Concrete Materials moulding by casting.Described upper plate 1 adopts rectangular structure, and the area of upper plate 1 is much larger than the area sum of three lower plates 2.
The board-like three rope foundation structures of the transmission tower that the utility model provides; upper plate uses as the foundation to protect cap; having the power transmission fringe conditions improves distinct; give full play to the physical and mechanical property of various materials; save investment; the advantages such as the high and easy construction of safety reliability; when circuit foundation soil physico-mechanical properties poor; on pull out load when large; three rope foundation structures are compared with two rope foundation structures with single rope can reduce cutting depth; owing to adopting 3 anchor cables, therefore greatly improve basic safety and reliability, so to be applicable to uplift force large on this basis; the Canal in Loess Area that the foundation soil physico-mechanical properties is poor is such as 330kV above line tower foundation.
This foundation structure is flexible foundation, adopts this foundation structure can improve the ability of shaft tower opposing dynamic load; Simultaneously can reduce the spoir amount, preserve the ecological environment; And convenient disassembly, do not re-use such as this basis, steel strand directly can be cut off, excavate upper plate and get final product, reduced basic projects amount; And the double ground wire of doing of Load Transfer mechanism can be used.This foundation structure Load Transfer is clear and definite, and structural calculation and construction are easier.Use three anchor cable bases can improve basic reliability, when anchor cable produces surrender or destroys, other two anchor cables can bear the basis on pull out load, in design, can require the uplift resistance of every anchor cable to satisfy the requirement that half pulls out load.
Claims (6)
1. board-like three rope foundation structures of transmission tower, comprise that a upper plate that is laid on the earth's surface and three are embedded in underground lower plate, it is characterized in that, connect by a steel strand rope respectively between described upper plate and each lower plate, three described lower plates are the yi word pattern setting, the length of the steel strand rope in the middle of being positioned at is greater than the length of the steel strand rope that is positioned at both sides, the equal in length of the steel strand rope of both sides.
2. board-like three rope foundation structures of transmission tower as claimed in claim 1, it is characterized in that, described steel strand rope outside between upper plate and each lower plate is provided with a gum cover pipe, the two ends of each described gum cover pipe contact with a lower plate with upper plate respectively, are filled with anticorrosive packing in described gum cover pipe inside.
3. the board-like three rope foundation structures of transmission tower as claimed in claim 1 or 2 is characterized in that, described upper plate, lower plate are the Reinforced Concrete Materials moulding by casting.
4. board-like three rope foundation structures of transmission tower as claimed in claim 1 or 2, it is characterized in that, the two ends of described steel strand rope are respectively equipped with an anchor head, are provided with the carrying backing plate between the anchor head on top and the upper plate, are provided with lower carrying backing plate between the anchor head of bottom and the lower plate.
5. board-like three rope foundation structures of transmission tower as claimed in claim 4, it is characterized in that, described carrying backing plate upper in the middle of being positioned at has four stone bolt that are arranged symmetrically with, and described stone bolt runs through upper plate, and is fixedly connected with the cast backing plate that is cast in the upper plate bottom surface.
6. the board-like three rope foundation structures of transmission tower as claimed in claim 1 or 2 is characterized in that, described upper plate adopts rectangular structure, and the area of upper plate is much larger than the area sum of three lower plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220519700 CN202881967U (en) | 2012-10-11 | 2012-10-11 | Transmission tower plate type three-cable base structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220519700 CN202881967U (en) | 2012-10-11 | 2012-10-11 | Transmission tower plate type three-cable base structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202881967U true CN202881967U (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220519700 Expired - Fee Related CN202881967U (en) | 2012-10-11 | 2012-10-11 | Transmission tower plate type three-cable base structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202881967U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900094A (en) * | 2012-10-11 | 2013-01-30 | 甘肃省电力公司电力经济技术研究院 | Transmission tower plate-type three-rope foundation structure |
| CN110528566A (en) * | 2019-08-27 | 2019-12-03 | 西安理工大学 | Transmission line of electricity combines the design method of the anchor pole of three anchor slab foundation structure of plate stem |
| CN110528567A (en) * | 2019-08-27 | 2019-12-03 | 西安理工大学 | Transmission line of electricity combines the design method of the upper plate of three anchor slab foundation structure of plate stem |
-
2012
- 2012-10-11 CN CN 201220519700 patent/CN202881967U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900094A (en) * | 2012-10-11 | 2013-01-30 | 甘肃省电力公司电力经济技术研究院 | Transmission tower plate-type three-rope foundation structure |
| CN102900094B (en) * | 2012-10-11 | 2015-02-04 | 甘肃省电力公司电力经济技术研究院 | Transmission tower plate-type three-rope foundation structure |
| CN110528566A (en) * | 2019-08-27 | 2019-12-03 | 西安理工大学 | Transmission line of electricity combines the design method of the anchor pole of three anchor slab foundation structure of plate stem |
| CN110528567A (en) * | 2019-08-27 | 2019-12-03 | 西安理工大学 | Transmission line of electricity combines the design method of the upper plate of three anchor slab foundation structure of plate stem |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20201011 |