CN223048077U - A transmission line tower foundation - Google Patents

Abstract

The utility model relates to a transmission line iron tower foundation, belonging to the field of iron tower foundation application technology, including a square beam and a counterweight block arranged in the soil, the four corners of the square beam are provided with counterweight blocks, each of the counterweight blocks is provided with a pipe pile in the vertical direction, a part of the pipe piles penetrates the counterweight block and is arranged in the soil, and a part of the pipe piles extend out of the soil; the part of the pipe pile located in the counterweight block is provided with a ring wing plate, the counterweight block is anchored with the pipe pile through the ring wing plate, one end of the pipe pile extending out of the soil is provided with a cap structure, and a reinforcing structure connected with the counterweight block is provided at the intersection of the two diagonals of the square beam. The counterweight block in the utility model is anchored with the pipe pile through the ring wing plate, and combined with the soil pressure of the soil, the horizontal bearing capacity of a single pipe pile can be effectively improved, and the deadweight of the counterweight block can increase the vertical pull-out bearing capacity of a single pipe pile, so the four corners of the square beam are provided with counterweight blocks and pipe piles, which can improve the vertical pull-out and horizontal bearing capacity of the iron tower foundation.

Description

Transmission line iron tower foundation

Technical Field

The utility model belongs to the technical field of iron tower foundation application, and particularly relates to a power transmission line iron tower foundation.

Background

The power transmission line iron tower foundation has the functions of stabilizing the tower body and preventing the iron tower from being pulled up, pressed down, overturned and slipped and damaged due to the actions of bearing the dead weight, wind load and earthquake load of the tower body, wind, ice hanging, broken line tension and other loads transmitted by the lead. The type selection, design and construction of the iron tower foundation have important influence on the normal use of the whole power transmission line engineering. The existing iron tower foundation mainly comprises rock foundations, concrete precast pile foundations, steel pipe pile foundations, composite open caisson foundations, independent foundations, combined foundations and the like.

With the wide development of western electric east-asian projects, various types of power transmission line iron tower foundations are widely applied and popularized, and the construction of the power transmission line iron tower foundations can often span desert areas due to the variability of geological conditions in the middle and western areas. The sandy soil in the desert area has stronger bearing capacity, but has poorer cohesive force, and is very unfavorable for the pulling resistance and horizontal bearing capacity of the pile foundation.

For geological conditions such as sandy, silt and silt clay which can be piled, how to improve the vertical pulling resistance and the horizontal bearing capacity of the iron tower foundation is an urgent problem.

Disclosure of utility model

The utility model provides a power transmission line iron tower foundation, which comprises square beams and balancing weights arranged in soil, wherein the balancing weights are arranged at four corners of each square beam, each balancing weight is vertically provided with a tubular pile, a part of the tubular piles penetrate through the balancing weights and are arranged in the soil, a part of the tubular piles extend out of the soil, ring wing plates are arranged at the positions, located in the balancing weights, of the tubular piles, the balancing weights are anchored with the tubular piles through the ring wing plates, a cap structure is arranged at one end, extending out of the soil, of each tubular pile, and a reinforcing structure connected with the balancing weights is arranged at the intersection point of two diagonal lines of each square beam.

Further, adjacent tubular piles and the reinforcing structure form a triangle.

Further, the ring wing plate is provided with a ring wing stiffening plate, the ring wing stiffening plate is perpendicular to the ring wing plate, and one side, close to the tubular pile, of the ring wing stiffening plate is connected with the tubular pile.

Further, both sides of the ring wing plate in the vertical direction are provided with ring wing stiffening plates.

Further, the reinforced structure comprises a balance block arranged at the intersection point of two diagonal lines of the square beam, the balance block is arranged in the soil body, a reinforced pile is arranged in the balance block, an anchoring plate is arranged at the position of the reinforced pile in the balance block, the balance block is anchored with the reinforced pile through the anchoring plate, and a reinforcing beam connected with the balancing block is arranged on the balance block.

Further, a sealing plate is arranged at one end of the reinforcing pile, which is positioned in the balance weight.

Further, reinforcing plates are arranged on two sides of the anchoring plate in the vertical direction.

Further, the stiffening beam comprises a first connecting beam and a second connecting beam, the first connecting beam and the second connecting beam are arranged in a crossing mode, a balance block is arranged at the crossing position of the first connecting beam and the second connecting beam, and one end, far away from the balance block, of the first connecting beam and the second connecting beam is connected with the balancing block.

Further, the reinforcing structure, the square beam and the balancing weight are all positioned on the same horizontal line.

Further, the cap structure comprises a pile cap plate, the pile cap plate is arranged at one end of the pipe pile extending out of the soil body, a pile cap stiffening plate is arranged on the pile cap plate and is vertically connected with the pile cap plate, and one side, close to the pipe pile, of the pile cap stiffening plate is connected with the pipe pile.

Compared with the prior art, the utility model has the beneficial effects that:

1) According to the utility model, the balancing weights are anchored with the pipe piles through the ring wing plates, and the soil pressure of the soil body is added, so that the horizontal bearing capacity of a single pipe pile can be effectively improved, and the vertical anti-pulling bearing capacity of the single pipe pile can be increased by the dead weight of the balancing weights, so that the balancing weights and the pipe piles at four corners of the square beam can improve the vertical anti-pulling and horizontal bearing capacity of the whole iron tower foundation.

2) The reinforcing structure, the balancing weight and the tubular piles are connected, so that an integrally stable stress structure can be formed, and the integral bearing capacity of the foundation is enhanced.

3) The reinforcing structure can share horizontal load together.

4) The bearing capacity of the single tubular pile can be improved by depending on the contact area between the balancing weight and the soil body.

5) The utility model utilizes the iron tower foundation designed by the tubular pile, the balancing weight and the square beam, avoids the increase of construction quantity caused by large-scale excavation of the foundation, and also avoids the increase of reinforced concrete cost caused by using the concrete independent foundation.

6) The utility model has simple structure, strong applicability, small construction occupied area and lower construction cost.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 shows a schematic diagram of an embodiment of the present utility model;

fig. 2 shows a schematic diagram of the connection of adjacent pipe piles;

FIG. 3 shows a schematic view of the connection of a reinforcing structure to an adjacent pipe pile;

FIG. 4 illustrates a schematic connection of a ring wing panel to a ring wing stiffener;

FIG. 5 shows a top view of FIG. 4;

FIG. 6 shows a schematic structural view of a ring wing stiffener;

FIG. 7 shows a schematic structural view of a pile cap plate;

FIG. 8 shows a top view of FIG. 7;

FIG. 9 shows a schematic structural view of a pile cap stiffener;

Fig. 10 shows a schematic view of the connection of the reinforcing piles to the closure plates.

The pile comprises the following components of 1, square beams, 2, balancing weights, 3, pipe piles, 31, ring wing plates, 311, vibrating holes, 32, ring wing stiffening plates, 33, pile cap stiffening plates, 34, pile cap plates, 341, bolt holes, 4, balancing weights, 5, reinforcing piles, 51, anchor plates, 52, reinforcing plates, 53, sealing plates, 6, reinforcing beams, 61, first connecting beams, 62, second connecting beams and 7, and soil body.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Fig. 1 shows a schematic structural diagram of an embodiment of the present utility model. The power transmission line iron tower foundation comprises square beams 1 and balancing weights 2 which are arranged in a soil body 7, wherein the balancing weights 2 are arranged at four corners of the square beams 1, fig. 2 shows a connection schematic diagram of adjacent pipe piles 3, each balancing weight 2 is vertically provided with a pipe pile 3, a part of the pipe piles 3 penetrate through the balancing weights 2 and are arranged in the soil body 7, a part of the pipe piles 3 extend out of the soil body 7, ring wing plates 31 are arranged at positions, located in the balancing weights 2, of the pipe piles 3, the balancing weights 2 are anchored with the pipe piles 3 through the ring wing plates 31, a cap structure is arranged at one end, extending out of the soil body 7, of each pipe pile 3, and a reinforcing structure connected with the balancing weights 2 is arranged at an intersection point of two diagonal lines of the square beams 1.

The power transmission line iron tower foundation utilizes balancing weight 2, ring wing plate 31, tubular pile 3, square beam 1, additional strengthening, not only can effectively improve the horizontal bearing capacity of single tubular pile 3, can also increase the vertical resistance to plucking bearing capacity of single tubular pile 3 to the vertical resistance to plucking and the horizontal bearing capacity of whole iron tower foundation have been improved.

Specifically, because the square beam 1 four corners department all has balancing weight 2, then has four tubular piles 3, and four tubular piles 3 are used for supporting the iron tower column base, in the concrete implementation process, can adjust the vertical resistance to plucking, resistance to compression and the horizontal bearing size of tubular pile 3 through adjusting the stake footpath and the burial depth of tubular pile 3.

In some embodiments, the adjacent tubular piles 3 and the reinforcing structure form a triangle, and the adjacent tubular piles 3 and the reinforcing structure form a triangle, so that the iron tower foundation forms a stable structure, and the tubular piles 3 and the reinforcing structure in the balancing weight 2 form a whole.

Fig. 4 shows a schematic connection of the ring wing panel 31 and the ring wing stiffener 32. In some embodiments, as shown in fig. 4, the ring wing plate 31 is provided with a ring wing stiffening plate 32, the ring wing stiffening plate 32 is perpendicular to the ring wing plate 31, one side of the ring wing stiffening plate 32 close to the pipe pile 3 is connected with the pipe pile 3, one side of the ring wing stiffening plate 32 is perpendicular to the ring wing plate 31, and the adjacent side is connected with the pipe pile 3, so that the ring wing plate 31 can be reinforced and fixed.

Fig. 6 shows a schematic structural view of the ring wing stiffener 32. In some embodiments, as shown in fig. 6, four ring wing stiffening plates 32 are uniformly distributed on the ring wing plate 31, and the four ring wing stiffening plates 32 can better strengthen the fixed ring wing plate 31, so as to improve the horizontal bearing capacity of the single tubular pile 3.

Fig. 5 shows a top view of fig. 4. As shown in fig. 5, in some embodiments, the ring wing plate 31 is provided with a vibrating hole 311, and the vibrating hole 311 can ensure that concrete under the ring wing plate 31 is poured and vibrated tightly, and ensure the preset dead weight of the balancing weight 2, so as to increase the vertical pulling-resistant bearing capacity of the pipe pile 3.

In some embodiments, the ring wing plates 31 are provided with ring wing stiffening plates 32 at two sides in the vertical direction, and the ring wing stiffening plates 32 are provided at two sides of the ring wing plates 31 to strengthen the fixed ring wing plates 31, thereby ensuring the stability of the balancing weight 2.

Fig. 3 shows a schematic view of the connection of the reinforcing structure to an adjacent pipe pile 3. As shown in fig. 3, in some embodiments, the reinforcing structure includes a balance weight 4 disposed at the intersection point of two diagonals of the square beam 1, the balance weight 4 is disposed in a soil body 7, a reinforcing pile 5 is disposed in the balance weight 4, an anchoring plate 51 is disposed at a position of the reinforcing pile 5 located in the balance weight 4, the balance weight 4 is anchored with the reinforcing pile 5 through the anchoring plate 51, a reinforcing beam 6 connected with the balance weight 2 is disposed on the balance weight 4, the anchoring plate 51 is used for connecting the reinforcing pile 5 and the balance weight 4, and the reinforcing beam 6 is used for connecting the balance weight 2 and the balance weight 4, so that the reinforcing pile 5 shares a horizontal load together.

Specifically, the dead weight of the balance weight 4 and the dead weight of the balancing weight 2 are consistent, the whole iron tower foundation can be guaranteed to form an integrally stable stressed structure, and conditions are provided for sharing horizontal load together.

In some embodiments, the adjacent tubular piles 3 and the reinforcing piles 5 form a triangle, so that the iron tower foundation forms a stable structure, the tubular piles 3 and the reinforcing piles 5 in the balancing weights 2 form a whole, and the balancing weights 2 are arranged on the tubular piles 3, and the balancing weights 4 are arranged on the reinforcing piles 5, so that the stability of the tubular piles 3 and the reinforcing piles 5 can be improved under the dead weights of the balancing weights 2 and the balancing weights 4.

In some embodiments, the structure of the anchoring plate 51 is consistent with that of the ring wing plate 31, and the vibrating holes 311 are also formed in the anchoring plate 51, so that not only is the compaction of concrete pouring and vibrating under the anchoring plate 51 ensured, but also the preset dead weight of the balance weight 4 is ensured, thereby increasing the vertical anti-pulling bearing capacity of the reinforcing pile 5.

Fig. 10 shows a schematic view of the connection of the reinforcing piles 5 to the sealing plate 53. In some embodiments, as shown in fig. 10, a sealing plate 53 is arranged at one end of the reinforcing pile 5 positioned in the balance weight 4, and the reinforcing pile 5 is sealed by the sealing plate 53 after pouring in the reinforcing pile 5.

In some embodiments, a sealing plate 53 is disposed at one end of the reinforcing pile 5 located in the balance weight 4, and reinforcing plates 52 are disposed at two sides of the anchoring plate 51, so as to strengthen and fix the anchoring plate 51, thereby ensuring stability of the balance weight 4.

In some embodiments, four reinforcing plates 52 are uniformly distributed on the anchoring plate 51, and the four reinforcing plates 52 can better strengthen and fix the anchoring plate 51, so as to improve the horizontal bearing capacity of the reinforcing pile 5.

In some embodiments, the reinforcement beam 6 includes a first connection beam 61 and a second connection beam 62, the first connection beam 61 and the second connection beam 62 are disposed in a crossing manner, a balance block 4 is disposed at a crossing portion of the first connection beam 61 and the second connection beam 62, one ends of the first connection beam 61 and the second connection beam 62, which are far away from the balance block 4, are connected with the balance block 2, the balance block 4 is connected with the square beam 1 by using the first connection beam 61 and the second connection beam 62, so that the whole iron tower foundation forms a stable stress structure, the whole bearing capacity of the iron tower foundation is increased, the balance blocks 2 are disposed at four corners of the square beam 1, two ends of the first connection beam and the second connection beam are connected with the balance block 2, the balance block 2 is disposed on the pipe pile 3, and the balance block 4 is disposed on the reinforcement pile 5, therefore, the reinforcement pile 5 and the pipe pile 3 can form a whole, the transverse rigidity of the foundation is improved, the horizontal displacement or horizontal rheological property of the foundation is reduced, the whole bearing capacity of the foundation is greatly improved, the vertical deformation is more evenly broken, and the uneven deformation of the foundation is avoided.

Specifically, the balancing weight 2 and the balancing weight 4 are both arranged in the soil body 7.

In some embodiments, the square beam 1 is square, and the counter weights 2 are arranged at four corners of the square beam 1, so that the vertical pulling-resistant bearing capacity of the single tubular pile 3 can be increased.

In some embodiments, the reinforcing structure, the square beam 1 and the balancing weight 2 are all positioned on the same horizontal line, so that the balance relationship between the reinforcing structure and the square beam 1 and the balancing weight 2 can be ensured, the reinforcing structure can share the horizontal load together, and the overall bearing capacity of the foundation is enhanced.

Fig. 7 shows a schematic view of the pile cap plate 34, fig. 7 shows that in some embodiments, the cap structure comprises a pile cap plate 34, the pile cap plate 34 is arranged at one end of the pile 3 extending out of the soil body 7, fig. 9 shows a schematic view of the pile cap stiffening plate 33, fig. 9 shows that the pile cap plate 34 is provided with a pile cap stiffening plate 33, the pile cap stiffening plate 33 is vertically connected with the pile cap plate 34, one side of the pile cap stiffening plate 33 close to the pile 3 is connected with the pile 3, the pile cap stiffening plate 33 is used for reinforcing and fixing the pile cap plate 34, the pile cap plate 34 can bear the load on the upper part of the iron tower under the reinforcing fixation of the pile cap stiffening plate 33, and the pile cap plate 34 and the pile cap stiffening plate 33 are connected with the pile 3 to strengthen and fix the pile cap plate 34.

Specifically, the shapes of the balance weight 4 and the balance weight 2 are selectable but not limited to cylindrical, and the cylindrical balance weight 4 and the balance weight 2 can effectively improve the horizontal bearing capacity of a single pipe column under the soil pressure of the soil body 7.

Specifically, the shapes of the anchor plate 51, the ring wing plate 31, the pile cap plate 34 and the sealing plate 53 are optional but not limited to round, the round anchor plate 51 and the sealing plate 53 can be quickly matched with the cylindrical balance weight 4, and the round ring wing plate 31 and the pile cap plate 34 can be quickly matched with the cylindrical balance weight 2, so that the vertical pulling resistance and the horizontal bearing capacity of the whole iron tower foundation are improved, and the iron tower foundation forms a stable structure.

Specifically, the materials of the tubular pile 3, the reinforcing pile 5, the ring wing plates 31, the ring wing stiffening plates 32 and the reinforcing plates 52 are selected but not limited to steel, and compared with other types of foundations, the tubular pile 3 and the reinforcing pile 5 made of steel have the advantages of material performance, dead weight, bearing capacity, flexibility and the like.

Fig. 8 shows a top view of fig. 7. In some embodiments, as shown in fig. 8, the pile cap plate 34 is provided with bolt holes 341, and the pile cap plate 34 and the iron pile base are connected through the bolt holes 341 in a bolt manner, so that no load on the iron tower is transmitted to the pipe pile 3 through the pile cap plate 34.

The working principle of the transmission line iron tower foundation is as follows:

By increasing the horizontal bearing capacity and the vertical pulling-resistant bearing capacity of the single pipe pile 3 and sharing the horizontal load, the vertical pulling-resistant and horizontal bearing capacity of the iron tower foundation is improved. The method comprises the steps of sequentially welding ring wing plates 31 and ring wing stiffening plates 32 on four tubular piles 3, welding anchor plates 51 and reinforcing plates 52 on reinforcing piles 5, welding sealing plates 53 at the ends of the reinforcing piles 5, pouring reinforcing beams 6, balancing weights 2, square beams 1 and balancing weights 4 on the foundation, anchoring the balancing weights 2 on the tubular piles 3 through the ring wing plates 31 and the ring wing stiffening plates 32, anchoring the balancing weights 4 on the reinforcing piles through the anchor plates 51 and the reinforcing plates 52, filling the welded iron tower foundation with a compacted soil body 7 according to preset target burial depths, and welding pile cap plates 34 and pile cap stiffening plates 33 at the ends of the tubular piles 3 higher than the soil body 7 of the compacted soil body to form an iron tower foundation. Because balancing weight 2 in the iron tower foundation is anchored with tubular pile 3 through ring pterygoid lamina 31, and the soil pressure of soil body 7 is added, can effectively improve the horizontal bearing capacity of single tubular pile 3, the dead weight of balancing weight 2 can increase the vertical resistance to plucking bearing capacity of single tubular pile 3, consequently, all have balancing weight 2 and tubular pile 3 to improve the vertical resistance to plucking and the horizontal bearing capacity of whole iron tower foundation in square beam 1's four corners department, and additional strengthening can share horizontal load jointly, makes the iron tower foundation form an wholly firm atress structure, has strengthened the whole bearing capacity of basis.

Specifically, the pipe pile 3 can be divided into two parts, one part of the pipe pile is embedded into the depth after anchoring the balancing weight 2, the other part of the pipe pile is welded with the pile cap plate 34 and the pile cap stiffening plate 33 in advance, the pipe pile is spliced through a strong welding seam after the pipe pile is embedded into the depth,

The inconvenience of welding in place is avoided.

Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that modifications may be made to the technical solutions described in the foregoing embodiments or equivalents may be substituted for some of the technical features thereof, and that such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model in essence of the corresponding technical solutions.

Claims (10)

1. A transmission line iron tower foundation is characterized by comprising square beams (1) and balancing weights (2) which are arranged in a soil body (7), wherein the balancing weights (2) are arranged at four corners of the square beams (1), each balancing weight (2) is vertically provided with a pipe pile (3), a part of the pipe piles (3) penetrate through the balancing weights (2) and are arranged in the soil body (7), a part of the pipe piles (3) extend out of the soil body (7), ring wing plates (31) are arranged at positions, located in the balancing weights (2), of the pipe piles (3), the balancing weights (2) are anchored with the pipe piles (3) through the ring wing plates (31), one ends, extending out of the soil body (7), of the pipe piles (3) are provided with cap structures, and reinforcing structures connected with the balancing weights (2) are arranged at intersection points of two diagonal lines of the square beams (1).

2. A pylon foundation according to claim 1, characterized in that adjacent piles (3) and reinforcing structures form a triangle.

3. The pylon foundation of claim 1 wherein the ring-wing stiffening plates (32) are provided on the ring-wing plates (31), the ring-wing stiffening plates (32) are perpendicular to the ring-wing plates (31), and one side of the ring-wing stiffening plates (32) near the pipe pile (3) is connected with the pipe pile (3).

4. A pylon foundation according to claim 3, wherein the ring-wing stiffening plates (32) are provided on both sides of the ring-wing plates (31) in the vertical direction.

5. The power transmission line iron tower foundation according to claim 1, characterized in that the reinforcing structure comprises a balance block (4) arranged at the intersection point of two diagonal lines of the square beam (1), the balance block (4) is arranged in a soil body (7), a reinforcing pile (5) is arranged in the balance block (4), an anchor plate (51) is arranged at the position, located in the balance block (4), of the reinforcing pile (5), the balance block (4) is anchored with the reinforcing pile (5) through the anchor plate (51), and a reinforcing beam (6) connected with the balancing weight (2) is arranged on the balance block (4).

6. A pylon foundation according to claim 5, characterized in that the end of the reinforcing pile (5) located in the counterweight (4) is provided with a closing plate (53).

7. The pylon foundation of claim 5 wherein the anchor plates (51) are provided with reinforcing plates (52) on both sides in the vertical direction.

8. The pylon foundation according to any one of claims 5-7, wherein the stiffening beam (6) comprises a first connecting beam (61) and a second connecting beam (62), the first connecting beam (61) and the second connecting beam (62) are arranged in a crossing manner, a balancing block (4) is arranged at the crossing position of the first connecting beam (61) and the second connecting beam (62), and one ends, far away from the balancing block (4), of the first connecting beam (61) and the second connecting beam (62) are connected with the balancing block (2).

9. The pylon foundation of any one of claims 1-4, wherein the reinforcing structure, square beam (1), and counterweight (2) are all located on the same horizontal line.

10. The power transmission line iron tower foundation according to any one of claims 1-4, wherein the cap structure comprises a pile cap plate (34), the pile cap plate (34) is arranged at one end of the pipe pile (3) extending out of the soil body (7), a pile cap stiffening plate (33) is arranged on the pile cap plate (34), the pile cap stiffening plate (33) is vertically connected with the pile cap plate (34), and one side, close to the pipe pile (3), of the pile cap stiffening plate (33) is connected with the pipe pile (3).