CN102900094A - Transmission tower plate-type three-rope foundation structure - Google Patents
Transmission tower plate-type three-rope foundation structure Download PDFInfo
- Publication number
- CN102900094A CN102900094A CN2012103835441A CN201210383544A CN102900094A CN 102900094 A CN102900094 A CN 102900094A CN 2012103835441 A CN2012103835441 A CN 2012103835441A CN 201210383544 A CN201210383544 A CN 201210383544A CN 102900094 A CN102900094 A CN 102900094A
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- rope
- upper plate
- plate
- foundation
- transmission tower
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- 239000002965 rope Substances 0.000 title claims abstract description 47
- 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
- 229920000591 gum Polymers 0.000 claims description 9
- 239000004575 stone Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 6
- 239000002689 soil Substances 0.000 description 9
- 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
- 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
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Abstract
The invention discloses a transmission tower plate-type three-rope foundation structure which comprises an upper plate which is paved on the ground surface and three lower plates which are buried under the ground. The transmission tower plate-type three-rope foundation structure is characterized in that the upper plate and each of the lower plates are respectively connected through a steel twisted rope; the three lower plates are arranged in a transverse straight line manner; the length of the steel twisted rope at the middle part is larger than the lengths of the steel twisted ropes at two sides; and the lengths of the steel twisted ropes at two sides are equal. According to the transmission tower plate-type three-rope foundation structure provided by the invention model, the upper plate is used as a foundation protecting cap and has the advantages that force transmission boundary conditions are complete and clear, physical mechanical properties of various materials are brought into full play, the investment is saved, the safety and the reliability grade are high, the construction is simple and convenient, and the like; when the line foundation earth is poor in physical mechanical property and the up-pull load is large, the security and the reliability of the foundation are greatly improved as three anchor ropes are adopted; and therefore, the foundation structure is applicable to loess regions with large up-pull forces and poor physical mechanical properties of the foundation earth, for example, line foundations of voltage grades more than 330kV.
Description
Technical field
The present invention 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 that 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.
Summary of the invention
In order to address the above problem, the invention provides a kind of board-like three rope foundation structures of transmission tower that are applicable to large thick Canal in Loess Area.
Purpose of the present invention 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 transmission tower provided by the invention; 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 safety reliability height and easy construction; 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 adopt 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 present invention 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 embodiment of the invention.
Fig. 2 is the earth's surface top view of the board-like three rope foundation structures of the described transmission tower of the embodiment of the invention.
The specific embodiment
Shown in Fig. 1-2, the board-like three rope foundation structures of the described transmission tower of the embodiment of the invention, 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 transmission tower provided by the invention; 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 safety reliability height and easy construction; 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 adopt 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 1 or 2, 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 it is characterized in that described upper plate adopts rectangular structure, and the area of upper plate are much larger than the area sum of three lower plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210383544.1A CN102900094B (en) | 2012-10-11 | 2012-10-11 | Transmission tower plate-type three-rope foundation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210383544.1A CN102900094B (en) | 2012-10-11 | 2012-10-11 | Transmission tower plate-type three-rope foundation structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102900094A true CN102900094A (en) | 2013-01-30 |
| CN102900094B CN102900094B (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210383544.1A Active CN102900094B (en) | 2012-10-11 | 2012-10-11 | Transmission tower plate-type three-rope foundation structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040723A (en) * | 2015-07-22 | 2015-11-11 | 国家电网公司 | Structure for preventing sand backfill and treating concrete pole up-pulling and construction method thereof |
| CN105442627A (en) * | 2016-01-19 | 2016-03-30 | 温州电力设计有限公司 | Assembly type plate-cable foundation |
| CN105888356A (en) * | 2016-05-11 | 2016-08-24 | 成都市东方电力线路构件厂 | Iron tower with foundation structure reinforced |
| CN107227745A (en) * | 2017-06-22 | 2017-10-03 | 国网浙江省电力公司台州供电公司 | A kind of group's anchor cable mat foundation of power transmission tower |
| CN110528561A (en) * | 2019-08-27 | 2019-12-03 | 西安理工大学 | A kind of transmission line of electricity joint three anchor slab basis fixed structure of 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 |
| 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 |
| CN102277877A (en) * | 2010-04-30 | 2011-12-14 | 通用电气公司 | Apparatus and method for producing a concrete foundation |
| CN202469390U (en) * | 2012-03-19 | 2012-10-03 | 宁波浩渤工贸有限公司 | Foundation bolt |
| CN202881967U (en) * | 2012-10-11 | 2013-04-17 | 甘肃省电力公司电力经济技术研究院 | Transmission tower plate type three-cable base structure |
-
2012
- 2012-10-11 CN CN201210383544.1A patent/CN102900094B/en active Active
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 |
| 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 |
| CN102277877A (en) * | 2010-04-30 | 2011-12-14 | 通用电气公司 | Apparatus and method for producing a concrete foundation |
| CN202469390U (en) * | 2012-03-19 | 2012-10-03 | 宁波浩渤工贸有限公司 | Foundation bolt |
| CN202881967U (en) * | 2012-10-11 | 2013-04-17 | 甘肃省电力公司电力经济技术研究院 | Transmission tower plate type three-cable base structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040723A (en) * | 2015-07-22 | 2015-11-11 | 国家电网公司 | Structure for preventing sand backfill and treating concrete pole up-pulling and construction method thereof |
| CN105442627A (en) * | 2016-01-19 | 2016-03-30 | 温州电力设计有限公司 | Assembly type plate-cable foundation |
| CN105888356A (en) * | 2016-05-11 | 2016-08-24 | 成都市东方电力线路构件厂 | Iron tower with foundation structure reinforced |
| CN107227745A (en) * | 2017-06-22 | 2017-10-03 | 国网浙江省电力公司台州供电公司 | A kind of group's anchor cable mat foundation of power transmission tower |
| CN110528561A (en) * | 2019-08-27 | 2019-12-03 | 西安理工大学 | A kind of transmission line of electricity joint three anchor slab basis fixed structure of plate stem |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102900094B (en) | 2015-02-04 |
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