CN102758555B - Safety device for crossing tower and anchor tower of power transmission line - Google Patents
Safety device for crossing tower and anchor tower of power transmission line Download PDFInfo
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- CN102758555B CN102758555B CN201210271349.XA CN201210271349A CN102758555B CN 102758555 B CN102758555 B CN 102758555B CN 201210271349 A CN201210271349 A CN 201210271349A CN 102758555 B CN102758555 B CN 102758555B
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- 230000005611 electricity Effects 0.000 claims description 23
- 238000010276 construction Methods 0.000 claims description 19
- 239000004575 stone Substances 0.000 claims description 14
- 239000004567 concrete Substances 0.000 claims description 12
- 239000011150 reinforced concrete Substances 0.000 abstract description 5
- 230000001681 protective effect Effects 0.000 description 14
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
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- 239000000203 mixture Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The invention discloses a safety device for a crossing tower and an anchor tower of a power transmission line. The safety device comprises anticollision pier bodies and connecting crossbeams; a plurality of reinforced concrete pier bodies with independent foundations are arranged around the crossing tower and the anchor tower of the power transmission line, which are positioned in the flood land or riverway and is not protected by a dam; the top ends of the adjacent pier bodies are connected by the horizontal reinforced concrete connecting crossbeams arranged above the level of once-a-century flood to form the safety device with an integral frame structure; each pier body comprises an underground foundation buried underground and a pier body arranged on the earth surface; the cross section of each pier body is an kidney-shaped surface, and one narrower surface of each pier body faces to the water flowing direction; and the foundation of each pier is independent of the crossing tower and the anchor tower and keeps a certain safety distance from the crossing tower and the anchor tower. The safety device for the crossing tower and the anchor tower of the power transmission line has the advantages of strong safety function, simple structure, short building peroid, no influence to flood discharge in the flood peroid and the like.
Description
Technical field
The present invention relates to the safety device of a kind of transmission line of electricity crossover tower and anchor tower.
Background technology
When high pressure and transmission line of electricity are by river course, usually outside the river levee in river course, build Great span tower and anchor tower, can transmit electricity by crossing river channel to make power line.But interim in flood period, Great span tower and anchor tower are just submerged among flood.Crossover tower and anchor tower are just probably clashed into by the floating thing in flood and ship out of control.Such as, it is heavy-haul lines that Wan electricity Dong send middle passage that 500kV puts down fertile 5302 lines/5312 lines that are setting, and this circuit will cross over river course, Huaihe River, and its safe operation is very important.Due to Huaihe River middle and upper reaches river regulation, dyke carries out moving back building, and flat for 500kV country fair Huaihe Crossing south bank crossover tower and anchor tower are placed in river course, Huaihe River by newly-built Huaihe dam.Through a large amount of analysiss of hydrological data, after Huaihe River dyke carries out moving back and builds, the shock of floating thing, ship will bring serious potential safety hazard to 500kV flat country fair Huaihe Crossing south bank crossover tower and anchor tower.Great span tower and anchor tower are once suffer impact damage, and its consequence is hardly imaginable.Not only Great span investment is huge, the construction period is long, and the Anhui province operation of power networks that passway for transmitting electricity interrupts bringing is unstable, will have a strong impact on the safe operation of whole East China Power Grid, and brings huge economic loss.
" power construction " the 28th volume the 8th disclose steel tower Anti-knocking measure in a kind of river aspire to " in the 500KV Hang Lan line Qiantang River iron tower foundation design " in August, 2007, it is provided with a circle steel and encloses grid around column foot, steel enclose grid by
steel pipe pile and level 2 road
steel pipe forms, fill concrete in steel pipe pile, the outer surface corrosion-inhibiting coating of this steel pipe pile, construction period is about 1 year, it is enclosed construction around column foot, comparatively large to the resistance of current, shortcomings such as having complex structure, great in constructing amount, long construction period, construction cost are high, great deal of steel be consumed, environmental-protecting performance is poor.
Summary of the invention
The present invention is for avoiding the weak point that exists in above-mentioned prior art, providing the safety device of a kind of transmission line of electricity crossover tower and anchor tower, to reducing the construction costs, to simplify protective device structure shorten the construction period.
The present invention be technical solution problem by the following technical solutions.
The safety guard of transmission line of electricity crossover tower and anchor tower, its design feature is, comprises stub and contact crossbeam; Arrange the many stubs erect in the surrounding of crossover tower and anchor tower, the top of adjacent two pier bodies is connected by the contact crossbeam of level and forms monolithic frame-shaped construction; Described stub comprises pier body and is embedded in the underground foundation of underground; The cross section of described pier body is kidney-shaped face, and the narrower one side of pier body is towards water (flow) direction.
The design feature of the safety device of transmission line of electricity crossover tower of the present invention and anchor tower is also:
Described stub comprises the described pier body being positioned at more than ground and the described underground foundation located below ground level; Described pier height 6.71m, cross section is of a size of 3m × 2m, and the turning in cross section is the fillet of radius 0.6m; The height of the underground foundation of described stub is 3.1m; Described underground foundation includes slab-foundation, and the height of described slab-foundation is 1.5m.
The periphery of described stub is provided with dry stone wall revetment, and the surrounding of described dry stone wall revetment is provided with concrete pin groove; Described dry stone wall revetment is of a size of 56m × 52m, wherein flows to downstream and is of a size of 56m, and vertical water flows to and is of a size of 52m.
In the outside of described concrete pin groove, at the current of Parallel to the flow direction, side is provided with many emergent fender piles.
Compared with the prior art, beneficial effect of the present invention is embodied in:
The safety device of transmission line of electricity crossover tower of the present invention and anchor tower,
Protective device of the present invention, floor space is less, without the need to expropriation of land, easy construction and avoid expropriation of land cost.Protective device of the present invention comprises stub body and contact crossbeam; Be arranged in around flood land or river course, the transmission line of electricity crossover tower do not protected by embankment and anchor tower, the reinforced concrete knoll body of multiple single footing is set, the top of adjacent pier body is connected by the horizontal reinforcement concrete contact crossbeam be arranged on hundred year flood position, the monolithic frame-shaped construction safety device of composition, to prevent between flood period and between river course highstand, ship and large-scale floating thing, to the impact damage of transmission line of electricity crossover tower and anchor tower, avoid the generation of security incident; Described pier body comprise be embedded in underground underground foundation and earth's surface on pier body; The cross section of described pier body is kidney-shaped face, and the narrower one side of pier body is towards water (flow) direction, reduces the current obstruction area of device; The basis of pier body independent of crossover tower and anchor tower basis, and keeps certain safe distance with crossover tower and anchor tower, once collide, its Impact energy can not be delivered to crossover tower and anchor tower, guarantees crossover tower and anchor tower safety, ensures the safe operation of transmission line of electricity.
The narrower one side of pier body is set to upstream face, and the resistance that current like this are subject to is minimum, and current can be passed through smoothly, reduces current to the impact of protective device.Beam height, higher than the water level of hundred year flood, does not affect flood discharge.Protective device of the present invention, fetches earth without the need to taking over the land for use in a large number, and easy construction estimates that the construction period is about 6 months.Can water be crossed between pier body, actually take river cross-section only about 4m, less to sluice influence.And under pier body settling amount, influence basin is narrow, impact can not be formed on tower foundation.The safety device of transmission line of electricity crossover tower of the present invention and anchor tower, have that safety is high, construction cost is low, structure is simple, the construction period is short, flood period time do not affect the advantages such as flood discharge.
Accompanying drawing explanation
Fig. 1 is the top view of the safety device of transmission line of electricity crossover tower of the present invention and anchor tower.
Fig. 2 is the A-A sectional view in Fig. 1.
Fig. 3 is the left view of the safety device of transmission line of electricity crossover tower of the present invention and anchor tower.
Fig. 4 is the front view of the stub of the safety device of transmission line of electricity crossover tower of the present invention and anchor tower.
Fig. 5 is the left view of the stub of the safety device of transmission line of electricity crossover tower of the present invention and anchor tower.
Fig. 6 is the top view of the stub of the safety device of transmission line of electricity crossover tower of the present invention and anchor tower.
Label in accompanying drawing 1 ~ accompanying drawing 6: 1 stub, 2 crossbeams, 3 crossover towers and anchor tower, 4 underground foundations, 41 slab-foundations, 5 pier bodies, 6 revetments, 7 concrete pin grooves, 8 fender piles.
Below by way of detailed description of the invention, and the invention will be further described by reference to the accompanying drawings.
Detailed description of the invention
See Fig. 1 ~ Fig. 6, the safety guard of transmission line of electricity crossover tower and anchor tower, comprises stub 1 and contact crossbeam 2; Arrange the many stubs 1 erect in the surrounding of crossover tower and anchor tower 3, the top of adjacent two pier bodies 5 is connected by the contact crossbeam 2 of level and forms monolithic frame-shaped construction; Described stub 1 comprises pier body 5 and is embedded in the underground foundation 4 of underground; The cross section of described pier body 5 is kidney-shaped face, and the narrower one side of pier body 5 is towards water (flow) direction.
Described stub 1 comprises the pier body 5 being positioned at more than ground and the underground foundation 4 located below ground level; The high 6.71m of described pier body 5, cross section is of a size of 3m × 2m, and the turning in cross section is the fillet of radius 0.6m; The height of the underground foundation 4 of described stub 1 is 3.1m; Described underground foundation 4 includes slab-foundation 41, and the height of described slab-foundation 41 is 1.5m.As shown in Fig. 4 ~ Fig. 6, the overground part of stub is pier body, and it is highly 6.71m, and its cross section is the capable face of waist, and the capable face of waist is of a size of 3m × 2m, and turning is the fillet of radius 0.6m.For being embedded in the underground foundation of underground under pier body, the height of underground foundation is 3.1m.Described underground foundation 4 comprises the slab-foundation that length, width and height are respectively 8m × 6m × 1.5m.This protective device, is built by steel bar concrete and is integrated, and has stronger overall resistance to capsizing.
The periphery of described stub 1 is provided with dry stone wall revetment 6, and the surrounding of described dry stone wall revetment 6 is provided with concrete pin groove 7; Described dry stone wall revetment is of a size of 56m × 52m, wherein flows to downstream and is of a size of 56m, and vertical water flows to and is of a size of 52m.As shown in Figure 1, described dry stone wall revetment, for the protection of the basis of crossover tower, anchor tower and protective device thereof, avoids flood erosion.The length direction of dry stone wall revetment flows to downstream, and length is 56m; The width of dry stone wall revetment flows to downstream, and width is 52m.The direction of the arrow logo shown in Fig. 1 is water (flow) direction.
In the outside of described concrete pin groove 7, at the current of Parallel to the flow direction, side is provided with many emergent fender piles 8.
Protective device of the present invention, is arranged at the surrounding of crossover tower and anchor tower, hollow structure can be adopted crossover tower and anchor tower four sides to be surrounded, also can adopt U-shaped structure, at an opening towards river levee, can save material.Because the possibility of being collided in water (flow) direction is comparatively large and impulsive contact force is larger, and the possibility of being collided in the direction of vertical current is less and impulsive contact force is general less, the stub arranged in the both sides of water (flow) direction is comparatively dense, and the stub arranged in the both sides of Transverse to the flow direction or side is comparatively sparse.Protective device of the present invention, floor space is less, without the need to expropriation of land, easy construction and avoid expropriation of land cost.Meanwhile, block water in order to avoid carrying out interim protective device at flood, the narrower one side of pier body is set to upstream face, and the resistance that current like this are subject to is minimum, and current can be passed through smoothly, reduces current to the impact of protective device.Crossbeam is arranged on the top of stub simultaneously, and beam height is higher than the water level of hundred year flood, even if thus there is once-in-a-century flood, current also can pass through protective device smoothly, and can not block water, and do not affect flood discharge.Protective device of the present invention, fetches earth without the need to taking over the land for use in a large number, easy construction.Can water be crossed between pier body, actually take river cross-section only about 4m, less to sluice influence.And under pier body settling amount, influence basin is narrow, impact can not be formed on tower foundation.
It is reinforced concrete structure that 500kV puts down fertile line Great span Nan Ta, circular, external diameter 21.5m.According to its form of structure and importance, arrange that crashproof stub protects around, stub design crest level is 26.21m, end elevation 17.00m; Wherein be positioned at the pier height 6.71m on more than ground, the height being embedded in the underground foundation 4 of underground is 3.1m.Minister on pier body × wide is 3 × 2m, and turning adopts radius 0.6m fillet, and bottom 1m pastes angle.Bottom adopts dull and stereotyped Extended chemotherapy, and long × wide is 8 × 6m, thick 1.5m.Pier phosphor bodies adopts reinforced concrete structure.Stub flows to clear distance 12m downstream, and vertical water flows to clear distance 8 m.Between pier body, steel bar concrete crossbeam is set in top outer, making stub form an overall structure, increase resistance to overturning, connection beam sectional dimension is wide × and height is respectively 0.6 × 1.0m and 0.8 × 1.0m, back elevation 26.21m, beam body lower plane is higher than hundred year flood position.
Crossover tower protection against erosion measure: adopt dry stone wall to protect around tower, protective range flows to long 56m downstream, it is 52m that vertical water flows to wide.The thick 0.3m of dry stone wall revetment, divides into the thick hardcore bed of 0.1m.Revetment edge arranges concrete teeth groove, wide 1.0m, dark 1.5m.
Claims (3)
1. the safety guard of transmission line of electricity crossover tower and anchor tower, is characterized in that, comprises stub (1) and contact crossbeam (2); Arrange the many stubs (1) erect in the surrounding of crossover tower and anchor tower (3), the top of adjacent two pier bodies (5) is connected by the contact crossbeam (2) of level and forms monolithic frame-shaped construction; Described stub (1) comprises pier body (5) and is embedded in the underground foundation (4) of underground; The cross section of described pier body (5) is kidney-shaped face, and the narrower one side of pier body (5) is towards water (flow) direction; Described safety guard, adopts U-shaped structure, at an opening towards river levee;
Stub (1) flows to clear distance 12m downstream, and vertical water flows to clear distance 8m; The back elevation 26.21m of described contact crossbeam (2), beam body lower plane is higher than hundred year flood position;
Described stub (1) comprises the described pier body (5) being positioned at more than ground and the described underground foundation (4) located below ground level; The high 6.71m of described pier body (5), cross section is of a size of 3m × 2m, and the turning in cross section is the fillet of radius 0.6m; The height of the underground foundation (4) of described stub (1) is 3.1m; Described underground foundation (4) includes slab-foundation (41), and the height of described slab-foundation (41) is 1.5m.
2. the safety device of transmission line of electricity crossover tower according to claim 1 and anchor tower, it is characterized in that, the periphery of described stub (1) is provided with dry stone wall revetment (6), and the surrounding of described dry stone wall revetment (6) is provided with concrete pin groove (7); Described dry stone wall revetment is of a size of 56m × 52m, wherein flows to downstream and is of a size of 56m, and vertical water flows to and is of a size of 52m.
3. the safety device of transmission line of electricity crossover tower according to claim 2 and anchor tower, is characterized in that, in the outside of described concrete pin groove (7), at the current of Parallel to the flow direction, side is provided with many emergent fender piles (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210271349.XA CN102758555B (en) | 2012-07-31 | 2012-07-31 | Safety device for crossing tower and anchor tower of power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210271349.XA CN102758555B (en) | 2012-07-31 | 2012-07-31 | Safety device for crossing tower and anchor tower of power transmission line |
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| Publication Number | Publication Date |
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| CN102758555A CN102758555A (en) | 2012-10-31 |
| CN102758555B true CN102758555B (en) | 2015-03-04 |
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| CN201210271349.XA Expired - Fee Related CN102758555B (en) | 2012-07-31 | 2012-07-31 | Safety device for crossing tower and anchor tower of power transmission line |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109555152B (en) * | 2017-09-25 | 2021-05-07 | 中石化重型起重运输工程有限责任公司 | Method for protecting equipment foundation and underground facility of hoisting equipment |
| CN112412154B (en) * | 2020-11-26 | 2021-11-02 | 山东丰汇设备技术有限公司 | Ultra-high voltage transmission line construction process with floating type overwater platform as operation surface |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0959933A (en) * | 1995-08-23 | 1997-03-04 | Fujita Corp | Filled and coated steel pipe concrete structure and construction method |
| CN2871632Y (en) * | 2006-03-27 | 2007-02-21 | 靳星 | Highway bridge |
| CN201305840Y (en) * | 2008-11-27 | 2009-09-09 | 浙江省电力设计院 | Flexible anti-collision device for underwater tower foundation |
| CN101748696A (en) * | 2009-12-14 | 2010-06-23 | 浙江大学 | Pile anti-collision system of flexible fender pier of underwater structure |
| CN201671053U (en) * | 2010-01-20 | 2010-12-15 | 肖文倩 | Flexible pier collision protection device |
| CN201924272U (en) * | 2010-12-29 | 2011-08-10 | 中铁七局集团有限公司 | Isolation type bridge pier anti-collision device |
| CN202787187U (en) * | 2012-07-31 | 2013-03-13 | 安徽省电力公司超高压公司 | Safety device for electric transmission line cross tower and anchor tower |
-
2012
- 2012-07-31 CN CN201210271349.XA patent/CN102758555B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0959933A (en) * | 1995-08-23 | 1997-03-04 | Fujita Corp | Filled and coated steel pipe concrete structure and construction method |
| CN2871632Y (en) * | 2006-03-27 | 2007-02-21 | 靳星 | Highway bridge |
| CN201305840Y (en) * | 2008-11-27 | 2009-09-09 | 浙江省电力设计院 | Flexible anti-collision device for underwater tower foundation |
| CN101748696A (en) * | 2009-12-14 | 2010-06-23 | 浙江大学 | Pile anti-collision system of flexible fender pier of underwater structure |
| CN201671053U (en) * | 2010-01-20 | 2010-12-15 | 肖文倩 | Flexible pier collision protection device |
| CN201924272U (en) * | 2010-12-29 | 2011-08-10 | 中铁七局集团有限公司 | Isolation type bridge pier anti-collision device |
| CN202787187U (en) * | 2012-07-31 | 2013-03-13 | 安徽省电力公司超高压公司 | Safety device for electric transmission line cross tower and anchor tower |
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Owner name: ANHUI ELECTRIC POWER CORP. MAINTENANCE CO., LTD. Effective date: 20140225 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: ANHUI ELECTRIC POWER CORP. MAINTENANCE CO., LTD. Effective date: 20140225 |
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