CN201810021U - Liftable and mining deformation prevention device of high-tension cable tower with expandable foundation - Google Patents
Liftable and mining deformation prevention device of high-tension cable tower with expandable foundation Download PDFInfo
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- CN201810021U CN201810021U CN201020536355XU CN201020536355U CN201810021U CN 201810021 U CN201810021 U CN 201810021U CN 201020536355X U CN201020536355X U CN 201020536355XU CN 201020536355 U CN201020536355 U CN 201020536355U CN 201810021 U CN201810021 U CN 201810021U
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Abstract
The utility model discloses a liftable and mining deformation prevention device of a high-tension cable tower with an expandable foundation, which comprises an outer foundation at the outside of the original foundation of the high-tension cable tower, an outer foundation bed is installed on the outer foundation via a variable translation support, and is a vertical frame which is built at the outside of a high-tension cable tower bottom in a sleeving way, and the outer foundation bed is connected with the original tower via a detachable connecting piece; and a metal foundation sleeve cap for increasing the foundation area is assembled on the original foundation of the cable tower, the variable translation support is installed on the foundation sleeve cap, a vertical lifting support is installed on the variable translation support, and the upper end of the vertical lifting support is connected with the outside of a high-tension cable tower leg. The device solves the problem that the high-tension cable tower is affected by surface movement and deformation due to coal mining, and realizes coal mining under the high-tension cable tower and the safe operation of a high-tension line. An expandable foundation mode is adopted instead of the original foundation mode for improving the lifting range of the tower body. The utility model can overcome the defect of large sinking of over 3m and large deformation, and has high resource recovery, large benefit and high safety.
Description
Technical field
The utility model relates to a kind of high pressure (containing extra-high voltage) line tower and can promote and the earthquake-proof anamorphic attachment for cinemascope, be applicable to the situation of non sudden surface subsidence greater than 3m, make iron tower can overcome the influence of sedimentation significantly and large deformation, thereby realize the following rational exploitation of iron tower resource.
Background technology
China is a mining big country, and the colliery distributes very extensive.No matter be newly-built high-tension line or built circuit, all the ubiquity iron tower is pressed the coal problem, and the depression influence is inevitable.
High pressure (extra-high voltage) line tower: refer to 110kV～1000kV high pressure, extra-high voltage transmission line iron tower.Existing high-tension line tower generally comprises tower head, body of the tower and tower leg, and tower leg mainly plays a supportive role, and the whole height of high-tension line tower is high to rice up to a hundred from tens meters.When the surface deformable of tower leg bottom, can produce appreciable impact to high-tension line tower, for example surface subsidence can make high-tension line tower sink, and face of land inclination can cause the high-tension line tower inclination or topple over, the line tower sinks and tilts can make cable be subjected to pulling force again, occurs breaking or the adjacent line tower is also collapsed; Tension or extrusion appear in the face of land, can change the distance on basis between the tower leg, make tower leg be subjected to stress, and this stress can damage tower leg, and tower leg flexural deformation or fracture appear in serious meeting, further can make the high-tension line tower unstability, collapse.And underground mining forms the goaf, and the overlying rock deformation failure causes the subsidence distortion usually inevitable, so this distortion certainly will impact the high-tension line tower on the face of land and the safety of supply line.
The particularity that is limited to power industry, high pressure and extra-high-speed line ball tower safety requirements height, when meeting power circuit and coal mining problem, traditional approach has two kinds:
The measure that one, power department are taked: detour when setting up high-voltage line and avoid coal field, line alignment is restricted like this, owing to detour construction investment will be increased considerably, and the expense of every kilometer circuit increase can be up to millions of units.
They are two years old, the measure that take in the colliery: when the colliery runs into existing high-voltage line through the mining area, stay in the high-tension line tower position mostly and establish safety pillar, a high-tension line tower just can hold up coal resources hundreds of thousands ton, the deep presses coal can reach 1,000,000 tons, causes the massive losses of national resources.
Therefore, the cost of two kinds of approach is all very big more than.
In recent years, it is as follows to have proposed some new ways in some newly-built circuits:
1) big plate pedestal is set: when newly-built high-tension line tower, do deep excavation, the whole big plate pedestal of cast is to reduce the infringement of horizontal distortion to tower leg.This mode mainly can reduce the influence of surface water horizontal drawing or compressive strain, but it can not overcome the influence of face of land inclination and distortion and whole depression.
2) lengthening stone bolt adjust remaining with this discrepancy in elevation that increases each tower leg, but regulated quantity is limited.
3) residual settlement on the face of land is reduced in the old goaf of grouting filling.But the grouting filling amount is big, and the cost height is not suitable for building up under the high-tension line tower and mines.
Above measure only is applicable to the remaining small deformation that overcomes the old above goaf face of land, can not overcome the depression large deformation in the recovery process, only is fit to newly-built high-tension line tower, incompatible adjustment of having built high-tension line tower.
How to improve the anti-surface deformable ability of iron tower, make iron tower can overcome the face of land sedimentation and large deformation significantly, thereby rational exploitation under the realization iron tower is still a difficult problem that presses for solution in current power production and the Coal Production, also is the basic outlet that solves transmission of electricity safety and resource recovery contradiction.
The utility model content
Can not overcome the face of land situation of sedimentation and large deformation significantly at the high-tension line tower that exists in the prior art, the purpose of this utility model is that the high-tension line tower that provides a kind of basis to extend out can promote and the earthquake-proof anamorphic attachment for cinemascope, can overcome significantly sedimentation and the large deformation destruction to high-tension line tower and high-tension line.
The technical solution of the utility model is achieved in that the high-tension line tower that a kind of basis extends out can promote and the earthquake-proof anamorphic attachment for cinemascope, comprise the newly-built outer basis that is arranged on the outside, the former basis of high-tension line tower, but outer basis is gone up and by the vertical telescopic adjustment bar on break-in translation bearing and the bearing outer frame is installed, described outer frame is built the basolateral vertical framework of this high-voltage line Tata in for cover, is connected by removable connector between outer frame and the high-tension line tower; On the former basis that the high-tension line tower tower leg is installed, be set with the basic steel bushing cap that increases foundation area, on the steel bushing cap of basis but break-in translation bearing is installed, but on the described break-in translation bearing vertical lifting support is installed, vertical lifting support upper end withstands on the described vertical grid of high-tension line tower bottom, and described vertical lifting support is made of hydraulic lifting support and fine setting lifting gear.
Because for the bigger situation of surface subsidence, the height that high-tension line tower need promote is bigger, whole high-tension line tower center of gravity high stability more is poor more, therefore pass through basis and installation outer frame outside the outside, former basis is newly-built, improving the stability of high-tension line tower, the height that outer basis extends out scope and outer frame designs according to the maximum subsidence amount of high-tension line tower height and prediction.What described outer frame was more satisfactory is to adopt steel framework, and frame construction is reasonable, intensity is big, cost is low, and is convenient to construction.
Described fine setting lifting gear be used for to bearing height finely tune be used to keep high-pressure tower vertically, can be worm and gear hoist or trapezoid thread screw telescopic, adopt the easier control body of the tower of machinery fine setting upright.
For overcoming the basic uneven subsidence that subsidence causes, and basis asynchronous moving horizontally (horizontal distortion, shearing strain), no matter be between outer basis and the outer frame, but still all be connected between vertical lifting support and the steel bushing cap by break-in translation bearing, but the break-in translation bearing on the described outer basis comprises horizontal sliding bar and sliding sleeve, the vertical telescopic adjustment bar of outer frame bottom connects sliding sleeve by axis of rotation, described sliding sleeve is sleeved on the horizontal sliding bar, and described horizontal sliding bar one end is contained on the described outer basis by vertical axis of rotation.But the break-in translation bearing on the described accordingly basic steel bushing cap comprises horizontal sliding bar and sliding sleeve, the lower end of vertical lifting support connects sliding sleeve by axis of rotation, described sliding sleeve is sleeved on the horizontal sliding bar, and described horizontal sliding bar one end is contained on the described basic steel bushing cap by vertical axis of rotation.
Preferably, the described horizontal sliding bar other end also is equipped with roller or adjustable support leg.
Can also comprise the bed hedgehopping layer of pad between vertical lifting support and high-tension line tower.
Can also comprise backguy, backguy evenly distributes on the peripheral direction of body of the tower, and backguy one end links to each other with the body of the tower top, the other end be fixed on the ground self-locking anchoring in high-tension line tower periphery and be connected, on a plurality of directions, body of the tower top is held.
Described self-locking anchoring can be distributed in the high-tension line tower diagonal position for four capstan winches.
Described backguy can be eight, and draw on a capstan winch on the diagonal positions of the line tower outside per two backguy lower ends, and these two backguy upper ends are fixed on the cat head adjacent diagonal.
The beneficial effects of the utility model are: but by presetting outer frame and break-in translation to the technological transformation of original high-tension line tower or to newly-built tower, but vertical adjustment device, to improve the stability and the safety of high-tension line tower, installing vertical lifting support additional is used for the high-tension line tower jacking, make high-tension line tower overcome the Ground Surface Dynamic depression that causes in the underground mining process, depression and the mobile problem that influences thereby solution coal mining face of land non sudden subsides to high-tension line tower, realize that high-tension line tower is mined down and the safe operation of high-tension line, the utility model resource recovery height in addition, can overcome significantly depression (greater than 3m) and distortion, benefit is big and safe.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model;
But Fig. 2 a is a break-in translation seat structure schematic diagram in the utility model;
But Fig. 2 b is the another kind of structural representation of break-in translation bearing in the utility model;
Fig. 3 is a steel framework formula outer frame structural representation in the utility model;
Fig. 4 is a high-tension line tower substructure schematic diagram of the present utility model;
Among the figure: 1 backguy, 2 capstan winches, 3 outer bases, but 4 break-in translation bearings, 5 steel mesh posture outer frames, 6 racks, 7 axis of rotation, 8 sliding sleeves, 9 horizontal sliding bars, 10 vertical lifting supports, 11 dops, 12 vertical telescopic adjustment bars, 13 rollers, 14 basic cap bags.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further, to help understanding content of the present utility model:
The high-tension line tower that a kind of basis extends out can promote and the earthquake-proof anamorphic attachment for cinemascope, as shown in Figure 1, comprise four newly-built outer bases 3 that are arranged on the outside, the former basis of high-tension line tower, but by the vertical telescopic adjustment bar 12 on break-in translation bearing 4 and the bearing steel framework formula outer frame 5 is installed on the outer as shown in Figure 3 basis 3.Outer frame is because in the outside, former basis; therefore not only in iron tower jacking process, play a supporting role in protection; and because outer frame has increased the high-tension line tower bottom area; strengthened the stability of tower body, the 3rd guiding mechanism during as the iron tower jacking has guaranteed the safety and stability of iron tower in the jacking process.The outer frame height is determined according to the face of land largest amount of subsidence design of prediction, and is guaranteed to satisfy the relevant requirements of tower body global design.By Fig. 1 in conjunction with shown in Figure 4, because former high-tension line tower tower leg is a battered leg, be not easy to jacking and fixing in outer frame 5, so former leaning tower leg and basis need be disconnected, and one section rack 6 that outline is vertical is set in high-tension line tower bottom, vertical rack 6 outsides that outer frame 5 is enclosed within this high-tension line tower form stretching structure, and vertically removable connectors such as dop 11 by as shown in Figure 4 or bolt are connected between rack 6 and the outer frame 5, make the high-tension line tower can be supported and fixing; With reference to Fig. 2 b and shown in Figure 4 shown in, on the former basis that the high-tension line tower tower leg is installed, be set with the metal basis cap bag 14 that increases foundation area, basis cap bag 14 adopts the loose-leaf connected mode to make by steel plate, be enclosed within on the former reinforcing bar concrete pedestal, make between basis and tower leg and can connect releasable connection by fixedlying connected to change into, the basis is extended, but provide the platform of installation break-in translation bearing, and make owing to adopt steel plate, but make break-in translation bearing can easily be weldingly fixed on the desired position, and do not rely on built-in fitting to fix.On the basis steel bushing cap 14 but break-in translation bearing 4 is installed, but vertical lifting support 10 is installed on the break-in translation bearing, vertical lifting support 10 upper ends withstand on vertical rack 6 bottoms of high-tension line tower, and vertical lifting support 10 is made of hydraulic lifting support that is serially connected and fine setting lifting gear.Adopt the hydraulic lifting support for the adjusting that amplitudes such as high-tension line tower integral jacking are bigger, adopt the fine setting of fine setting lifting gear upright to guarantee body of the tower.Described fine setting lifting gear can adopt worm and gear hoist or trapezoid thread screw telescopic, adopt pure mechanical system manual fine-tuning, can adjust the uneven subsidence (inclination, curvature, distortion) between each tower leg, keep body of the tower upright, adjustable surplus 500mm.When the setting of ground of high-tension line tower, utilize the overhanging height of adjusting of vertical lifting support 10, with the whole upwards jacking of high-tension line tower, make the height of overhead high pressure line before keeping, not because of surface subsidence reduces, to overcome the influence of surface subsidence.This vertical lifting support 4 is four.
Move for the asynchronous of basis that face of land horizontal distortion or shearing strain cause, can make variable in distance between the former high-tension line tower tower leg, certainly the distance between the outer basis is changed.For overcoming the asynchronous infringement that moves horizontally high-tension line tower in this basis,, but between basis and the outer frame and between basic cap bag and the vertical lifting support break-in translation bearing 4 is housed all outside as Fig. 1 and Fig. 3, shown in Figure 4.But break-in translation bearing is shown in Fig. 2 a and Fig. 2 b, comprise horizontal sliding bar 9 and sliding sleeve 8, the outer frame bottom is provided with vertical telescopic adjustment bar 12, vertical telescopic adjustment bar 12 connects sliding sleeve 8 by axis of rotation, sliding sleeve 8 is sleeved on the horizontal sliding bar 9, and horizontal sliding bar 9 one ends are contained on the outer basis by vertical axis of rotation 7; But comprise horizontal sliding bar 9 and sliding sleeve 8 equally at the basic steel bushing cap of vertical lifting support and the break-in translation bearing between the vertical lifting support accordingly, the lower end of vertical lifting support connects sliding sleeve 8 by axis of rotation, sliding sleeve 8 is sleeved on the horizontal sliding bar 9, and horizontal sliding bar 9 one ends are contained on the basic steel bushing cap 14 by vertical axis of rotation.When the face of land has horizontal distortion to cause between the basis asynchronous displacement to occur, at this moment sliding sleeve 8 will be along horizontal sliding bar 9 translation voluntarily, slide bar one end is subjected to out-of-balance force and rotation voluntarily simultaneously, make slide bar point to the basic displacement direction, guaranteeing like this to change in the position on basis can not exert an influence to pedestal and high-tension line tower, to keep stable in supporting ﹠ stablizing and the jacking process.The effect of vertical telescopic adjustment bar 12 also is used to overcome basic uneven subsidence (inclination, curvature, distortion), guarantees outer frame 5 levels.Vertical expansion link adopts the screw rod of trapezoidal thread and the stretching structure that swivel nut constitutes, or the worm and gear device, makes the column foot level, sink to overcome the basis inequality, and for example inclination, curvature and distortion, adjustable extent is 40cm.In a kind of preferred implementation shown in Fig. 2 b, at horizontal sliding bar one end adjustable support leg or roller 13 are installed, can play rotation acts on easily, can play the effect of support again, reduce the suffered vertical pressure of axis of rotation, make horizontal sliding bar maintenance level, axis of rotation only is subjected to the vertical pressure effect, avoid axis of rotation crooked or, the perhaps fracture of stone bolt from bottom break.
Also comprise the bed hedgehopping layer of pad between vertical lifting support and high-tension line tower, when the total deflection in the face of land exceeds the maximum ascending amount of vertical lifting support, can be by increasing the deficiency that the bed hedgehopping layer remedies the lifting support height.The bed hedgehopping layer can become the part of rack 6.
For tens meters even the high high-tension line tower of rice up to a hundred, bigger inclination may make the body of the tower unstability and the accident of falling the tower of generation, of the present utility modelly also comprise backguy 1 as shown in Figure 1, backguy 1 evenly distributes on the peripheral direction of body of the tower, and backguy 1 one ends link to each other with the body of the tower top, the other end be fixed on peripheral ground self-locking backguy 2 devices of tower and be connected, self-locking backguy 2 devices are four capstan winches that are distributed in the high-tension line tower diagonal position, usually there are at least three backguys 1 top of tower can be stablized to live in the plane, preferably, the utility model adopts eight backguys 1, draw on the capstan winch 2 on the diagonal positions of the line tower outside per two backguy 1 lower ends, and these two backguy 1 upper ends are fixed on the cat head adjacent diagonal.Utilize the backguy 1 on the different directions that the high-tension line tower top is being stablized, guarantee surface deformable or when tower being carried out jacking and adjusts cat head stable, the accident of falling the tower of avoiding takes place, on each capstan winch two become backguy and the tower that V-type is intersected also to form stable triangular structure simultaneously, and it is stable better to control cat head.
Concrete job practices is:
(1) builds outer basis: increase in the outside, former basis and build four independently column foots outer basic 3, newly-built outer basis is greater than former basis, extend out size by main material gradient and rising high computational, pre-embedded anchoring bolts, build frame type outer frame 5 as shown in Figure 3 outside on the basis, 5 four jiaos of bottoms of outer frame are provided with vertical telescopic adjustment bar 12, but and be installed on four outer bases by four break-in translation bearings 4;
(2) at the high-tension line tower bottom setting vertical rack 6 of outline as shown in Figure 4, on former basis, add basic cap bag, and vertical lifting support is installed and is horizontally rotated bearing in the tower leg bottom; Eight backguys are installed at the body of the tower top simultaneously, and all directions are installed capstan winch all around on ground, high-tension line tower place, and backguy one end lies in capstan winch, and body of the tower top is stablized; Cut off former tower leg, and rack 6 is inserted in the cavity that coincide at outer frame 5 middle parts; Rack 6 can be fixed on the outer frame 5 by clamp.
(3) the asynchronous horizontal distortion that causes line column foot plinth that moves horizontally in the face of land, but overcome the influence of horizontal distortion by break-in translation bearing, keep the stable of outer frame and high-tension line tower and vertical lifting support, adjust the vertical telescopic adjustment bar of outer frame and the fine setting lifting gear of vertical lifting support according to the uneven subsidence size, so that outer frame assurance level and body of the tower are kept upright; Keep body of the tower stable by capstan winch tension backguy, according to face of land sinkage, utilize the hydraulic lifting support jacking body of the tower in the vertical lifting support, tower body is upwards slided along outer frame raise, each lifting amount is 1.5～2m, and jacking is once finished, utilize dop 11 that body of the tower is connected with outer basis, body of the tower is held, also adjusted backguy by capstan winch synchronously in the jacking adjustment process, to stablize tower body; For the needs situation of jacking repeatedly, also need to install the bed hedgehopping layer, pad is on vertical lifting support top, and the bed hedgehopping layer height is identical with a top lifting height, and vertically lifting support resets then, for jacking is next time prepared;
(4) through one or many jacking in the step (3), after the face of land is stable, body of the tower is fixed on the described outer frame, form firmly and support.
But the break-in translation bearing of vertical lifting support and correspondence and capstan winch and backguy can be removed, with recycling.
Claims (11)
1. the high-tension line tower that extends out of a basis can promote and the earthquake-proof anamorphic attachment for cinemascope, it is characterized in that: comprise the newly-built outer basis that is arranged on the outside, the former basis of high-tension line tower, but outer basis is gone up and by the vertical telescopic adjustment bar on break-in translation bearing and the bearing outer frame is installed, described outer frame is built the basolateral vertical framework of high-voltage line Tata in for cover, is connected by removable connector between outer frame and the high-tension line tower; On the former basis that the high-tension line tower tower leg is installed, be set with the metal basis cap bag that increases foundation area, on the cap bag of basis but break-in translation bearing is installed, but on the described break-in translation bearing vertical lifting support is installed, vertical lifting support upper end is connected at the bottom of the tower of former tower, and described vertical lifting support is made of hydraulic lifting support and fine setting lifting gear.
2. device as claimed in claim 1 is characterized in that: described outer frame is a steel framework.
3. device as claimed in claim 2 is characterized in that: described fine setting lifting gear is worm and gear hoist or trapezoid thread screw telescopic.
4. as described device one of in the claim 1 to 3, it is characterized in that: but the break-in translation bearing on the described outer basis comprises horizontal sliding bar and sliding sleeve, the vertical telescopic adjustment bar of outer frame bottom connects sliding sleeve by axis of rotation, described sliding sleeve is sleeved on the horizontal sliding bar, and described horizontal sliding bar one end is contained on the described outer basis by vertical axis of rotation.
5. device as claimed in claim 4 is characterized in that: the described horizontal sliding bar other end also is equipped with roller or adjustable support leg.
6. as described device one of in the claim 1 to 3, it is characterized in that: but the break-in translation bearing on the described basic steel bushing cap comprises horizontal sliding bar and sliding sleeve, the lower end of vertical lifting support connects sliding sleeve by axis of rotation, described sliding sleeve is sleeved on the horizontal sliding bar, and described horizontal sliding bar one end is contained on the described basic cap bag by vertical axis of rotation.
7. device as claimed in claim 6 is characterized in that: the described horizontal sliding bar other end also is equipped with roller or adjustable support leg.
8. as described device one of in the claim 1 to 3, it is characterized in that: also comprise the bed hedgehopping layer of pad between vertical lifting support and the vertical rack in high-tension line tower bottom.
9. as described device one of in the claim 1 to 3, it is characterized in that: also comprise backguy, backguy evenly distributes on the peripheral direction of high-tension line tower body of the tower, and backguy one end links to each other with the body of the tower top, the other end be fixed on the peripheral ground self-locking anchoring of tower leg and be connected, on a plurality of directions, body of the tower top is held.
10. device as claimed in claim 9 is characterized in that: described self-locking anchoring is four capstan winches, is distributed in the high-tension line tower diagonal position.
11. device as claimed in claim 10 is characterized in that: described backguy is eight, and draw on a capstan winch on the diagonal positions of the high line tower outside per two backguy lower ends, and these two backguy upper ends are fixed on the high-tension line tower cat head adjacent diagonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020536355XU CN201810021U (en) | 2010-09-20 | 2010-09-20 | Liftable and mining deformation prevention device of high-tension cable tower with expandable foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020536355XU CN201810021U (en) | 2010-09-20 | 2010-09-20 | Liftable and mining deformation prevention device of high-tension cable tower with expandable foundation |
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| Publication Number | Publication Date |
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| CN201810021U true CN201810021U (en) | 2011-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020536355XU Expired - Lifetime CN201810021U (en) | 2010-09-20 | 2010-09-20 | Liftable and mining deformation prevention device of high-tension cable tower with expandable foundation |
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| CN (1) | CN201810021U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956478A (en) * | 2010-09-20 | 2011-01-26 | 中国矿业大学(北京) | Enhancement-able mining deformation resistance device of high-voltage line tower with externally expanded base |
| CN103967319A (en) * | 2014-05-14 | 2014-08-06 | 华北电力大学（保定） | Stay wire system capable of relieving influence of stay wire looseness |
| CN104358272A (en) * | 2014-11-28 | 2015-02-18 | 中国电力工程顾问集团西北电力设计院有限公司 | Basic structure for extra-high-voltage single-column guyed tower V-shaped stayguys |
| CN104471149A (en) * | 2012-07-06 | 2015-03-25 | 乌本产权有限公司 | Foundation for wind turbines |
| CN107386314A (en) * | 2016-08-20 | 2017-11-24 | 王国涛 | A kind of ground for electric wire tower collapse |
-
2010
- 2010-09-20 CN CN201020536355XU patent/CN201810021U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956478A (en) * | 2010-09-20 | 2011-01-26 | 中国矿业大学(北京) | Enhancement-able mining deformation resistance device of high-voltage line tower with externally expanded base |
| CN104471149A (en) * | 2012-07-06 | 2015-03-25 | 乌本产权有限公司 | Foundation for wind turbines |
| CN104471149B (en) * | 2012-07-06 | 2017-05-24 | 乌本产权有限公司 | Foundation for wind turbines |
| CN103967319A (en) * | 2014-05-14 | 2014-08-06 | 华北电力大学（保定） | Stay wire system capable of relieving influence of stay wire looseness |
| CN103967319B (en) * | 2014-05-14 | 2016-08-17 | 华北电力大学（保定） | A kind of can alleviate bracing wire relax impact wire drawing system |
| CN104358272A (en) * | 2014-11-28 | 2015-02-18 | 中国电力工程顾问集团西北电力设计院有限公司 | Basic structure for extra-high-voltage single-column guyed tower V-shaped stayguys |
| CN104358272B (en) * | 2014-11-28 | 2015-12-30 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of extra-high voltage single-column Guywire tower V-type bracing wire foundation structure |
| CN107386314A (en) * | 2016-08-20 | 2017-11-24 | 王国涛 | A kind of ground for electric wire tower collapse |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110427 Effective date of abandoning: 20120502 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20110427 Effective date of abandoning: 20120502 |