CN220377982U

CN220377982U - Power transmission tower suitable for steep terrain

Info

Publication number: CN220377982U
Application number: CN202321455348.0U
Authority: CN
Inventors: 章东鸿; 庄志翔; 何运祥; 黎景辉; 王海乔; 曾根生; 李敏生; 陈廷君
Original assignee: China Energy Engineering Group Guangdong Electric Power Design Institute Co Ltd
Current assignee: China Energy Engineering Group Guangdong Electric Power Design Institute Co Ltd
Priority date: 2023-06-08
Filing date: 2023-06-08
Publication date: 2024-01-23
Anticipated expiration: 2033-06-08

Abstract

The application relates to a transmission tower suitable for abrupt topography for set up on abrupt slope, abrupt slope is provided with first basis and second basis, is applicable to the transmission tower of abrupt topography and includes: the tower body, the first tower leg, the second tower leg and the lengthening component. The first tower leg and the second tower leg are respectively connected with the tower body, and the length of the first tower leg is greater than that of the second tower leg. The lengthened hook piece is used for being arranged between the first tower leg and the first foundation, and the second tower leg is connected with the second foundation. Through setting up the extension component, can effectively increase the leg level difference that connects of transmission tower, make it laminate undisturbed ground betterly, effectively avoid because the soil and stone side excavation that leads to of leg level difference is not enough connects, be favorable to the soil and water conservation in mountain area, reduce the risk of water and soil loss and landslide in tower position scope. Therefore, the extension member corresponds to the extension of the first tower leg, has the characteristics of high bearing capacity, good fitting of the original topography and good bending resistance, and is very suitable for being applied to the tower position with steep topography.

Description

Power transmission tower suitable for steep terrain

Technical Field

The application relates to the technical field of power transmission line equipment, in particular to a power transmission tower suitable for steep terrain.

Background

Along with the rapid development of electric power construction, the line corridor is more and more short, most of mountain power transmission lines are located in areas with high altitude, dangerous terrain and inconvenient traffic, the tower position condition of a power transmission tower (also called a power transmission iron tower generally) is more and more severe, the larger step is caused by adopting a conventional tower leg type in the area with the gradient larger than 45 degrees, the earth and stone excavation area is large, the abandoned stones and the abandoned soil generated by construction are not easy to treat, the environmental damage is large, the formed high slope is easy to influence the overall stability of the mountain, the construction is difficult, and the risk is high. The construction problem of the power transmission towers of mountain areas is increasingly prominent, and the power transmission towers of mountain areas have attracted extensive attention from all parties of society.

Because of the relief of mountain land features, the power transmission tower usually adopts a long and short leg tower type to adapt to the change of the topography. The power transmission tower with long and short legs has mature calculation theory and application experience in power transmission line engineering and is widely applied to power transmission lines. With the increase of the height of the tower legs, the separation number of auxiliary materials of the legs is increased, the second-order effect generated by large deformation of the iron tower can adversely affect the stress performance of the tower legs, and the existing long and short leg iron towers can not meet the height difference requirement of the tower positions for the tower positions with steep gradient of individual terrains.

In the related art, when a power transmission tower with long and short legs is installed at a steep part of mountain terrain, earthwork of the steep part of mountain terrain is generally excavated, so that the long and short legs of the power transmission tower can be respectively and fixedly connected to corresponding foundations. However, a great deal of earth excavation at the tower site is caused, and water and soil conservation at the tower site is adversely affected.

Disclosure of Invention

Based on this, it is necessary to overcome the defects of the prior art, and to provide a power transmission tower suitable for steep terrain, which can better fit the steep terrain, enlarge the terrain area to which the iron tower leg can fit, and reduce the earth excavation in the foundation range.

A power transmission tower suitable for steep terrain for setting on steep slope, steep slope is provided with first basis and second basis, power transmission tower suitable for steep terrain includes:

a tower body;

the first tower leg and the second tower leg are respectively connected with the tower body, and the length of the first tower leg is longer than that of the second tower leg; and

the lengthening member is connected with the first tower leg, the lengthening member is used for being arranged between the first tower leg and the first foundation, and the second tower leg is connected with the second foundation.

In one embodiment, the first and second legs are completely exposed outside the steep incline.

In one embodiment, the first tower leg comprises a first main material, a first diagonal material and a plurality of first auxiliary materials respectively connected with the first main material and the first diagonal material; the first main material is connected with the tower body, and the first main material and the first inclined material are arranged at an included angle;

the second tower leg comprises a second main material, a second inclined material and a plurality of second auxiliary materials respectively connected with the second main material and the second inclined material; the second main material is connected with the tower body, and the second main material and the second inclined material are arranged at an included angle.

In one embodiment, the elongated member is connected to an end of the first main material remote from the tower.

In one embodiment, the extension direction of the elongated member is the same as the extension direction of the first main material.

In one embodiment, the elongated member is connected to the end of the first main material by a first fastener, a snap fit connection, or a weld connection.

In one embodiment, the elongated member includes a connecting tube or a plurality of connecting tubes that are in turn detachably connected.

In one embodiment, the end parts of two adjacent connecting pipes are respectively provided with a flange plate, and the two flange plates are connected through a second fastening piece.

In one embodiment, the elongate member is a telescoping support.

In one embodiment, the tower body is a corner steel tower or a steel pipe tower.

The power transmission tower suitable for steep terrain is characterized in that the first tower leg is connected with the lengthening member, and the lengthening member is connected between the first tower leg and the first foundation, which is equivalent to lengthening the length of the first tower leg. On the one hand, the structural form is changed, the power transmission tower in the related art is of a truss structure, the rod piece only bears tension and compression, and in the embodiment, after the lengthened component is connected to the first tower leg, the power transmission tower is of a hybrid structure, and the structural form has the advantages of clear force transmission path, safety and reliability. On the other hand, the tower legs of the power transmission tower in the related art are composed of main materials and inclined materials, the connection of the main materials and the inclined materials is limited by the minimum construction angle, the level difference between the long legs and the short legs is limited, the long legs and the short legs cannot be attached to steep original-shape terrains, in order to ensure that all the tower legs are exposed out of the ground, the corrosion of soil and water to the tower legs is reduced, a platform is required to be cleaned in the actual construction in the related art, so that a large amount of earthwork excavation is caused, and water and soil loss in the range of the tower foundation are caused. In this embodiment, through setting up the extension component, can effectively increase the leg joint level difference of transmission tower, make it can laminate undisturbed ground better, effectively avoid the excavation of earth and stone side because the leg joint level difference is not enough leads to, be favorable to the soil and water conservation in mountain area, reduce the risk of water and soil loss and landslide in tower position scope. Therefore, the extension member corresponds to the extension of the first tower leg, has the characteristics of high bearing capacity, good fitting of the original topography and good bending resistance, and is very suitable for being applied to the tower position with steep topography.

Drawings

Fig. 1 is a structural view of a related art angle steel tower applied to a slope of steep terrain.

Fig. 2 is a structural diagram of a related art steel pipe tower applied to a slope of steep terrain.

Fig. 3 is a structural diagram of an angle tower according to an embodiment of the present application applied to a slope of steep terrain.

Fig. 4 is a structural diagram of a steel pipe tower according to an embodiment of the present application applied to a slope of steep terrain.

Fig. 5 is a schematic structural view of a steel angle tower according to an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a steel pipe tower according to an embodiment of the present application.

Fig. 7 is a schematic view of a tower leg structure of the angle tower according to an embodiment of the present application.

Fig. 8 is a schematic diagram of a tower leg structure of a steel pipe tower according to an embodiment of the present application.

110. Angle steel tower; 120. a ramp; 130. a steel pipe tower; 140. a tower position;

210. steep slope; 211. a first base; 212. a second base; 220. a tower body; 230. a first tower leg; 231. a first main material; 232. a first bevel material; 233. a first auxiliary material; 240. a second tower leg; 241. a second main material; 242. a second bevel material; 243. a second auxiliary material; 250. an elongated member; 251. and (5) connecting pipes.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

As described in the background art, the inventor has found that the problem of the prior art, which causes a large amount of earth excavation at the tower site and causes adverse effects on soil and water conservation at the tower site, is caused by referring to fig. 1 and 2, fig. 1 shows a structural diagram of the related art angle steel tower 110 applied to the steep slope 120, and fig. 2 shows a structural diagram of the related art steel pipe tower 130 applied to the steep slope 120, regardless of whether the power transmission sleeve is the angle steel tower 110 or the steel pipe tower 130, the leg joint of the power transmission tower mainly relies on the main material and the diagonal material to bear the upper load. Experiments prove that the main material and the inclined material are easy to damage when the included angle between the main material and the inclined material is smaller than a preset value, the included angle between the main material and the inclined material is required to be larger than the preset value when the power transmission tower is designed, and the power transmission tower is further limited in application in mountain areas, particularly, the power transmission tower can not be well attached to a steep tower position 140, and a great amount of earthwork is excavated at the tower position 140, so that adverse effects are caused on water and soil conservation of the tower position 140.

Based on the reasons, the application provides a power transmission tower suitable for steep terrain, which can be better attached to steep terrain, can enlarge the terrain interval to which the power transmission tower leg can be attached, and can reduce the scheme of earth excavation in the range of a tower foundation.

Referring to fig. 3 to 6, fig. 3 shows a block diagram of an angle tower according to an embodiment of the present application applied to a steep slope. Fig. 4 shows a structural diagram of a steel pipe tower according to an embodiment of the present application applied to a slope of steep terrain. Fig. 5 shows a schematic structural view of a steel angle tower according to an embodiment of the present application. Fig. 6 shows a schematic structural diagram of a steel pipe tower according to an embodiment of the present application. An embodiment of the present application provides a power transmission tower suitable for steep terrain, which is configured on a steep slope 210, wherein the steep slope 210 is provided with a first foundation 211 and a second foundation 212. A transmission tower suitable for steep terrain includes a tower body 220, a first tower leg 230, a second tower leg 240, and an elongated member 250. The first and second legs 230 and 240 are connected to the tower body 220, respectively, and the length of the first leg 230 (shown as L1 in fig. 5) is greater than the length of the second leg 240 (shown as L2 in fig. 5). The elongated members 250 are coupled to the first tower leg 230 and the elongated hooks are configured to be disposed between the first tower leg 230 and the first base 211 and the second tower leg 240 is coupled to the second base 212.

As the first tower leg 230 is connected with the extension member 250, the extension member 250 is connected between the first tower leg 230 and the first foundation 211, which is equivalent to lengthening the length of the first tower leg 230. In this way, on the one hand, the structural form is changed, the power transmission tower in the related art is a truss structure, the rod member only bears the tensile force and the compressive force, and in the embodiment, after the lengthened member 250 is connected to the first tower leg 230, the power transmission tower is of a hybrid structure, and the structural form has the advantages of clear force transmission path, safety and reliability. On the other hand, the tower legs of the power transmission tower in the related art are composed of main materials and inclined materials, the connection of the main materials and the inclined materials is limited by the minimum construction angle, the level difference between the long legs and the short legs is limited, the long legs and the short legs cannot be attached to steep original-shape terrains, in order to ensure that all the tower legs are exposed out of the ground, the corrosion of soil and water to the tower legs is reduced, a platform is required to be cleaned in the actual construction in the related art, so that a large amount of earthwork excavation is caused, and water and soil loss in the range of the tower foundation are caused. In this embodiment, by arranging the extension member 250, the leg-connecting level difference of the power transmission tower can be effectively increased, so that the power transmission tower can be well attached to the undisturbed ground, excavation of the earth and stone caused by insufficient leg-connecting level difference can be effectively avoided, the water and soil protection in mountain areas is facilitated, and the water and soil loss and landslide risks in the tower position range are reduced. It can be seen that the extension member 250 corresponds to the extension of the first tower leg 230, has the characteristics of high bearing capacity, good fitting with the original topography and good bending resistance, and is very suitable for being applied to the tower with steep topography.

Referring to fig. 3, in one embodiment, the first leg 230 and the second leg 240 are completely exposed outside the steep incline 210. Thus, after the first tower leg 230 and the second tower leg 240 are completely exposed out of the ground, not only the earth excavation can be avoided, but also the corrosion caused by soil and water can be greatly reduced.

Referring to fig. 3, in one embodiment, the first base 211 is buried in the steep slope 210, and the top of the first base 211 is flush with the surface of the steep slope 210 or exposed to the outside of the steep slope 210 so as to be connected to the extension member 250 located outside the steep slope 210.

Referring to fig. 3, in one embodiment, the second foundation 212 is buried in the steep incline 210, and the top of the second foundation 212 is flush with the surface of the steep incline 210 or exposed outside the steep incline 210 so as to be connected to the second tower leg 240 located outside the steep incline 210.

Of course, as some alternatives, a portion or all of the elongate member 250 extends into the steep incline 210. In addition, a portion of the second leg 240 extends into the steep incline 210.

Referring to fig. 3, in one embodiment, the first tower leg 230 includes a first main material 231, a first diagonal material 232, and a plurality of first auxiliary materials 233 respectively connected to the first main material 231 and the first diagonal material 232. The first main material 231 is connected to the tower body 220, and the first main material 231 and the first inclined material 232 are disposed at an included angle.

Referring to fig. 3, in one embodiment, the second tower leg 240 includes a second main material 241, a second diagonal material 242, and a plurality of second auxiliary materials 243 respectively connected to the second main material 241 and the second diagonal material 242. The second main material 241 is connected to the tower body 220, and the second main material 241 and the second inclined material 242 are disposed at an included angle.

The first main material 231 and the second main material 241 respectively include, but are not limited to, steel pipes, the arrangement gradient of which is the same as that of the side surface of the power transmission tower, and the specific size and thickness can be determined according to calculation, and the material specification of the first main material 231 and the second main material 241 includes, but is not limited to, Q355, Q420, Q460 and the like.

Referring to fig. 3, in one embodiment, an elongated member 250 is connected to an end of the first main material 231 remote from the tower 220. Therefore, the bearing capacity is high, the bearing capacity can be better attached to the original topography, and the bending resistance is good, so that the bearing capacity is very suitable for being applied to the steep topography tower.

Referring to fig. 3, in one embodiment, the extension direction of the extension member 250 is the same as the extension direction of the first main material 231. Therefore, the bearing capacity is high, the bearing capacity can be better attached to the original topography, and the bending resistance is good, so that the bearing capacity is very suitable for being applied to the steep topography tower.

Referring to fig. 7 or 8, fig. 7 is a schematic diagram illustrating a leg structure of an angle tower according to an embodiment of the present application. Fig. 8 shows a schematic diagram of a tower leg structure of a steel pipe tower according to an embodiment of the present application. In one embodiment, the elongated member 250 is connected to the end of the first main material 231 by a first fastener (not shown), a snap fit connection, or a weld connection. In this way, the elongated members 250 are firmly connected to both the first legs 230, so that they have the characteristics of high bearing capacity and good bending resistance.

The first fastening piece comprises, but is not limited to, a bolt, a pin, a rivet and the like, and can be flexibly selected according to practical requirements.

Referring to fig. 7 or 8, in one embodiment, the extension member 250 includes one connection tube 251 or a plurality of connection tubes 251 detachably connected in sequence. In this way, when the extension member 250 includes the plurality of connection pipes 251 detachably connected in sequence, the number of connection pipes 251 can be flexibly adjusted according to actual needs to correspondingly adjust the length of the extension member 250, so that the extension member 250 can be adjusted to a suitable length to firmly connect the first tower leg 230 with the first foundation 211.

Referring to fig. 3 and 4, in one embodiment, when the power transmission tower is installed on the steep incline 210, it is necessary to ensure that the central axis of the power transmission tower is disposed in the vertical direction.

Referring to fig. 7 or 8, in one embodiment, flanges (not shown) are disposed at ends of two adjacent connection pipes 251, and the two flanges are connected by a second fastener (not shown). In this way, the flanges at the ends of the two connection pipes 251 are connected to each other by the second fastening member, so that the connection between the two adjacent connection pipes 251 can be stably achieved.

It should be noted that, the "flange" may be a part of the "connection tube 251", that is, the "flange" and the "other part of the connection tube 251" are integrally formed; or a separate component which is separable from the other part of the connecting tube 251, namely, the flange plate can be independently manufactured and then combined with the other part of the connecting tube 251 into a whole.

In one embodiment, the bottom of the extension member 250 is connected to the first base 211 by a third fastener (not shown), a snap-fit connection, or a welded connection. In this way, the lengthened member 250 and the first foundation 211 are firmly connected, so that the bearing capacity is high and the bending resistance is good.

The third fastening piece includes, but is not limited to, a bolt, a pin, a rivet and the like, and can be flexibly selected according to practical requirements.

In one embodiment, the elongated member 250 includes, but is not limited to, a telescoping support. In this way, after the extension member 250 is configured as a telescopic support, the length of the telescopic support can be flexibly and rapidly adjusted according to actual requirements, so that the first tower leg 230 can be firmly connected with the first foundation 211 after being adjusted to a proper length.

In one embodiment, the tower 220 is configured to include, but is not limited to, a steel angle tower (as shown in fig. 3 or 5) or a steel tube tower (as shown in fig. 4 or 6).

In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims

1. A transmission tower suitable for abrupt topography for set up on abrupt slope, its characterized in that, abrupt slope is provided with first basis and second basis, transmission tower suitable for abrupt topography includes:

a tower body;

2. The power transmission tower adapted for use in steep terrain according to claim 1, wherein the first and second tower legs are completely exposed outside the steep incline.

3. The power transmission tower adapted for steep terrain according to claim 1, wherein the first tower leg comprises a first main material, a first diagonal material and a plurality of first auxiliary materials connected to the first main material and the first diagonal material, respectively; the first main material is connected with the tower body, and the first main material and the first inclined material are arranged at an included angle;

4. A transmission tower adapted for use in steep terrain according to claim 3, wherein the elongate member is connected to an end of the first main material remote from the tower body.

5. The power transmission tower adapted for use in steep terrain according to claim 4, wherein the extension direction of the elongated member is the same as the extension direction of the first main material.

6. The power transmission tower adapted for use on steep terrain according to claim 4, wherein the elongated member is connected to the end of the first main material by a first fastener, a snap-fit connection or a welded connection.

7. A transmission tower adapted for use in steep terrain according to claim 1, wherein the elongate member comprises a connecting tube or a plurality of connecting tubes which are in turn detachably connected.

8. The power transmission tower adapted for steep terrain according to claim 7, wherein the ends of two adjacent connection pipes are each provided with a flange, the two flanges being connected by a second fastener.

9. A transmission tower adapted for use in steep terrain according to claim 1, wherein the elongate member is a telescopic support.

10. Transmission tower suitable for steep terrain according to any of the claims 1-9, characterized in that the tower body is provided as a angle tower or a steel tube tower.