CN102900093B - Plate-type double-cable foundation structure of transmission tower - Google Patents
Plate-type double-cable foundation structure of transmission tower Download PDFInfo
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- CN102900093B CN102900093B CN201210383543.7A CN201210383543A CN102900093B CN 102900093 B CN102900093 B CN 102900093B CN 201210383543 A CN201210383543 A CN 201210383543A CN 102900093 B CN102900093 B CN 102900093B
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- plate
- upper plate
- foundation structure
- type double
- cable
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- 239000002965 rope Substances 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000004575 stone Substances 0.000 claims description 9
- 229920000591 gum Polymers 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 abstract description 11
- 238000010276 construction Methods 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 238000009412 basement excavation Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 230000001681 protective Effects 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
- 239000002360 explosive Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Abstract
The invention discloses a plate-type double-cable foundation structure of a transmission tower. The plate-type double-cable foundation structure comprises an upper plate which is spread on the surface of the ground and two lower plates which are embedded underground, wherein the upper plate is connected with each lower plate through a steel twisted rope; the lengths of the two steel twisted ropes are the same; a rubber casing pipe is arranged outside each steel twisted rope between the upper plate and the lower plates; two ends of each rubber casing pipe are in contact with the upper plate and each lower plate respectively; and an anti-corrosion filler is filled into the rubber casing pipes. The plate-type double-cable foundation structure has the advantages of exerting physical and mechanical properties of various materials fully and saving investment along with perfect and clear force-transfer boundary condition, safety, high reliability, simplicity and convenience in construction and the like; and compared with a single-cable foundation structure, the double-cable foundation structure has the advantage that when the physical and mechanical property of line foundation soil is poor, and up-pull loads are large, the excavating depth can be reduced. The plate-type double-cable foundation structure is suitable for loess areas with large up-pull force and poor physical and mechanical property of the foundation soil, for example, line foundations of more than 110kV voltage grade.
Description
Technical field
The present invention is a kind of transmission tower equipment, specifically the basic fixed structure of transmission tower.
Background technology
In heavy thickness Canal in Loess Area, pole and tower foundation mainly adopts " heavy excavation " foundation class, draw 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 the basis of backfill being tamped, it be with the backfill of disturbance is formed the resistance to plucking soil body keep basic on pull out stable.Draw and dig spread foundation class and mean and be poured into machinery or the basis of manually drawing in the native tire that scrapes out with concrete and cage of reinforcement, it be with the resistance to plucking soil body of natural formation keep basis on pull out stable.Explosion expanded piling foundation class means and to be poured into the stub of the bellend in the shaping native tire of explosive expansion basis with concrete and cage of reinforcement, 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 meeting, must strengthen key dimension, improve foundation cost, simultaneously because spoir is more, also larger to the destruction of environment.Draw and dig spread foundation class and be suitable in the cohesive soil of anhydrous infiltration foundation ditch, simultaneously pile foundation regulation and stipulation, as basis adopts pile foundation, essential bearing stratum need through collapsible loess, and therefore this basis is not suitable for heavy thickness Collapsible Loess District.Explosion expanded piling foundation class difficulty of construction is comparatively large and technique and dimensional gaughing have certain difficulty.
Summary of the invention
In order to solve the problem, the invention provides a kind of plate-type double-cable foundation structure of transmission tower being applicable to large thick Canal in Loess Area.
Object of the present invention carrys out specific implementation by the following technical programs:
Plate-type double-cable foundation structure of transmission tower, comprise the lower plate that a upper plate being laid on earth's surface and two are embedded in underground, connect respectively by a steel strand rope between described upper plate and each lower plate, the length of two steel strand ropes is equal, each described steel strand rope outside is between the upper and lower plates 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 at described glue inside pipe casing; The two ends of described steel strand rope are respectively equipped with an anchor head, are provided with carrying backing plate between the anchor head on top and upper plate, are provided with lower carrying backing plate between the anchor head of bottom and lower plate; Described upper plate upper has four stone bolt be arranged symmetrically with, and described stone bolt runs through upper plate, and is fixedly connected with the cast backing plate being cast in upper plate bottom surface.Described upper plate, lower plate are Reinforced Concrete Materials moulding by casting.
Two described lower plates are arranged relative to the Central Symmetry of upper plate, and are respectively in the both sides of four described stone bolt.
Described upper plate adopts rectangular structure, and the area of upper plate is much larger than the area sum of two lower plates.
Plate-type double-cable foundation structure of transmission tower provided by the invention, based on upper plate, protective cap uses, having power transmission fringe conditions improves distinct, give full play to the physical and mechanical property of various material, investment reduction, the advantages such as the high and easy construction of safety reliability, when circuit foundation soil physico-mechanical properties is poor, when uplift load is larger, the more single rope foundation structure of two rope foundation structure can reduce cutting depth, owing to adopting two anchor cables, therefore there is good safety and reliability on the more single rope in this basis basis, therefore to be applicable to uplift force larger for this foundation structure, the Canal in Loess Area that foundation soil physico-mechanical properties is poor, as 110kV above line tower foundation.
This foundation structure is flexible foundation, adopts this foundation structure can improve the ability of shaft tower opposing dynamic load; Spoir amount can be reduced simultaneously, preserve the ecological environment; And convenient disassembly, as this basis does not re-use, steel strand directly can be cut off, excavate upper plate, reduce basic projects amount; And double for the load transmission mechanism ground wire that does can be used.This foundation structure load transmission is clear and definite, and structural calculation is easier with construction.Use two rope foundation structure can improve basic reliability, when an anchor cable produces surrender or destroys, an other anchor cable can delay the destruction on basis.
Accompanying drawing explanation
According to drawings and embodiments the present invention is described in further detail below.
Fig. 1 is the structure chart of plate-type double-cable foundation structure of transmission tower described in the embodiment of the present invention.
Fig. 2 is the earth's surface top view of plate-type double-cable foundation structure of transmission tower described in the embodiment of the present invention.
Detailed description of the invention
As shown in Figure 1-2, plate-type double-cable foundation structure of transmission tower described in the embodiment of the present invention, comprise the lower plate 2 that a upper plate 1 being laid on earth's surface and two are embedded in underground, connect respectively by a steel strand rope 3 between described upper plate 1 and each lower plate 2, the length of two steel strand ropes 3 is equal, each described steel strand rope 3 outside between upper plate 1 and lower plate 2 is 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 upper plate 1, are provided with lower carrying backing plate 72 between the anchor head 62 of bottom and lower plate 2; Described upper plate 1 upper has four stone bolt be arranged symmetrically with 8, and described stone bolt 8 runs through upper plate 1, and is fixedly connected with the cast backing plate 9 being cast in upper plate 1 bottom surface.Described upper plate 1, lower plate 2 are 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 two lower plates 2.
Two described lower plates 2 are arranged relative to the Central Symmetry of upper plate 1, and are respectively in the both sides of four described stone bolt 8.
Plate-type double-cable foundation structure of transmission tower provided by the invention, based on upper plate, protective cap uses, having power transmission fringe conditions improves distinct, give full play to the physical and mechanical property of various material, investment reduction, the advantages such as the high and easy construction of safety reliability, when circuit foundation soil physico-mechanical properties is poor, when uplift load is larger, the more single rope foundation structure of two rope foundation structure can reduce cutting depth, owing to adopting two anchor cables, therefore there is good safety and reliability on the more single rope in this basis basis, therefore to be applicable to uplift force larger for this foundation structure, the Canal in Loess Area that foundation soil physico-mechanical properties is poor, as 110kV above line tower foundation.
This foundation structure is flexible foundation, adopts this foundation structure can improve the ability of shaft tower opposing dynamic load; Spoir amount can be reduced simultaneously, preserve the ecological environment; And convenient disassembly, as this basis does not re-use, steel strand directly can be cut off, excavate upper plate, reduce basic projects amount; And double for the load transmission mechanism ground wire that does can be used.This foundation structure load transmission is clear and definite, and structural calculation is easier with construction.Use two rope foundation structure can improve basic reliability, when an anchor cable produces surrender or destroys, an other anchor cable can delay the destruction on basis.
Claims (2)
1. plate-type double-cable foundation structure of transmission tower, comprise the lower plate that a upper plate being laid on earth's surface and two are embedded in underground, it is characterized in that, connect respectively by a steel strand rope between described upper plate and each lower plate, the length of two steel strand ropes is equal;
Described upper plate, lower plate are Reinforced Concrete Materials moulding by casting,
Described steel strand rope outside between upper plate and each lower plate is provided with a gum cover pipe, and the two ends of each described gum cover pipe contact with a lower plate with upper plate respectively, are filled with anticorrosive packing at described glue inside pipe casing,
The two ends of described steel strand rope are respectively equipped with an anchor head, are provided with carrying backing plate between the anchor head on top and upper plate, are provided with lower carrying backing plate between the anchor head of bottom and lower plate,
Described upper plate upper has four stone bolt be arranged symmetrically with, and described stone bolt runs through upper plate, and is fixedly connected with the cast backing plate being cast in upper plate bottom surface.
2. plate-type double-cable foundation structure of transmission tower as claimed in claim 1, it is characterized in that, two described lower plates are arranged relative to the Central Symmetry of upper plate, and are respectively in the both sides of four described stone bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210383543.7A CN102900093B (en) | 2012-10-11 | 2012-10-11 | Plate-type double-cable foundation structure of transmission tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210383543.7A CN102900093B (en) | 2012-10-11 | 2012-10-11 | Plate-type double-cable foundation structure of transmission tower |
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| Publication Number | Publication Date |
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| CN102900093A CN102900093A (en) | 2013-01-30 |
| CN102900093B true CN102900093B (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210383543.7A Expired - Fee Related CN102900093B (en) | 2012-10-11 | 2012-10-11 | Plate-type double-cable foundation structure of transmission tower |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442627B (en) * | 2016-01-19 | 2018-09-14 | 温州电力设计有限公司 | A kind of assembled plate rope basis |
| 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 |
| CN110528564A (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 the double anchor slab foundation structures of plate stem |
| CN110528562A (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 the double anchor slab foundation structures of plate stem |
| CN110528563A (en) * | 2019-08-27 | 2019-12-03 | 西安理工大学 | A kind of double anchor slab bases fixed structure of transmission line of electricity joint plate stem |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063509A (en) * | 2006-04-30 | 2007-10-31 | 通用电气公司 | Tower adapter, method of producing a tower foundation and tower foundation |
| CN201232194Y (en) * | 2008-06-13 | 2009-05-06 | 中国矿业大学 | Anti-deformation power transmission tower |
| KR100946573B1 (en) * | 2009-12-08 | 2010-03-11 | 파슨스 브링커호프 아시아 리미티드 | Steel base with adjusting leveling and construction method using the same |
| CN201874004U (en) * | 2009-09-25 | 2011-06-22 | 山东电力集团公司日照供电公司 | Foundation employing rock bottom-enlarging anchor pile for overhead power transmission line |
| CN202469390U (en) * | 2012-03-19 | 2012-10-03 | 宁波浩渤工贸有限公司 | Foundation bolt |
| CN202787308U (en) * | 2012-10-11 | 2013-03-13 | 甘肃省电力公司电力经济技术研究院 | Plate type dual-rope foundation structure of power transmission pole tower |
-
2012
- 2012-10-11 CN CN201210383543.7A patent/CN102900093B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063509A (en) * | 2006-04-30 | 2007-10-31 | 通用电气公司 | Tower adapter, method of producing a tower foundation and tower foundation |
| CN201232194Y (en) * | 2008-06-13 | 2009-05-06 | 中国矿业大学 | Anti-deformation power transmission tower |
| CN201874004U (en) * | 2009-09-25 | 2011-06-22 | 山东电力集团公司日照供电公司 | Foundation employing rock bottom-enlarging anchor pile for overhead power transmission line |
| KR100946573B1 (en) * | 2009-12-08 | 2010-03-11 | 파슨스 브링커호프 아시아 리미티드 | Steel base with adjusting leveling and construction method using the same |
| CN202469390U (en) * | 2012-03-19 | 2012-10-03 | 宁波浩渤工贸有限公司 | Foundation bolt |
| CN202787308U (en) * | 2012-10-11 | 2013-03-13 | 甘肃省电力公司电力经济技术研究院 | Plate type dual-rope foundation structure of power transmission pole tower |
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| CN102900093A (en) | 2013-01-30 |
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