A tower foundation protection structure

Abstract

The utility model relates to the technical field of building construction discloses a kind of electric tower foundation protection structures, including ground, recess is set in the ground top side, the recess bottom is poured with several concrete foundation piles, the concrete foundation pile top is connected with nut by screw thread, the nut bottom is provided with frame, the ground top middle is poured with concrete wall, the frame top side is slidably connected with fixed plate, the fixed plate other side is fixedly connected with first inclined bracing, the first inclined bracing one side is fixedly connected with limit plate, and the outer wall of limit plate is penetrated with frame and slidably connected, the first inclined bracing inner wall bottom is fixedly connected with pivot.The utility model can effectively disperse radial force generated by surrounding foundation pit excavation of high-voltage tower base, reasonably conduct force to deep layer of ground and concrete protection structure, avoid tower body to appear inclination or collapse, and guarantee the structural stability of high-voltage tower foundation.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a protective structure for power tower foundations. Background Technology

[0002] The power tower foundation protection structure in the construction field is a special protective device for the foundation platform and pit of transmission towers in the construction scenario of utility tunnels. Its core is to avoid problems such as soil disturbance, pit deformation and load imbalance during the excavation of utility tunnels through appropriate structural design. It can not only ensure the normal progress of utility tunnel projects, but also maintain the stability of transmission tower foundations and the safe operation of transmission lines. It is usually combined with structural components such as support, reinforcement and monitoring to form a protection system. It is a key construction supporting structure that takes into account both the construction of municipal utility tunnels and the safety of power facilities.

[0003] In existing technologies, bored piles and TRD (Temperature Retaining Decorative) cutoff walls are commonly used for protecting power tower foundation pits, particularly for projects like utility tunnels adjacent to power towers. These are often combined with internal support and bottom reinforcement measures. Specifically, bored piles of approximately 80cm in diameter are first constructed as retaining piles, with reasonable spacing to form a retaining structure. This is then combined with a TRD channel-type continuous cement-soil wall as a cutoff wall to prevent groundwater seepage and disturbance of the surrounding soil. Simultaneously, multiple layers of support are installed within the pit; for example, the first layer uses concrete support, followed by steel pipe support. The bottom of the pit is also reinforced with high-pressure jet grouting piles to enhance the foundation's bearing capacity, thereby reducing the impact of pit deformation on the foundations of nearby power towers.

[0004] The high cost and time constraints of the project, including the high material and construction costs of bored piles, TRD water-stop curtains, and multiple supports, and the need to wait for each structure to reach the specified strength before proceeding with subsequent excavation, will prolong the overall construction period and make it impossible to provide efficient protection for the foundation of the power tower. To address these issues, a power tower foundation protection structure is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a protective structure for power tower foundations, which solves the problem in the prior art of being unable to provide efficient protection for the foundation platform of power towers.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a power tower foundation protection structure, including a ground, a groove is provided on one side of the top of the ground, a plurality of concrete foundation piles are poured at the bottom of the groove, nuts are threaded to the top of the concrete foundation piles, a frame is provided at the bottom of the nuts, and a concrete wall is poured in the middle of the top of the ground.

[0007] By adopting the above technical solution, a certain groove is formed by manually digging the ground. The radial force of the high-voltage tower base is dispersed by installing a structure in the groove, which prevents the high-voltage tower from tilting. Moreover, after the groove is dug out, the high-voltage base will not tilt or swing for a short period of time.

[0008] As a further description of the above technical solution: a fixed plate is slidably connected to one side of the top of the frame, and a first diagonal brace is fixedly connected to the other side of the fixed plate.

[0009] By adopting the above technical solution, the first diagonal brace can disperse the radial force on the frame into radial, vertical, and inclined forces.

[0010] As a further description of the above technical solution: a limiting plate is fixedly connected to one side of the first diagonal brace, and the outer wall of the limiting plate is slidably connected to the frame through it.

[0011] By adopting the above technical solution, the limiting plate can only be inserted into the corresponding groove when the first diagonal brace is inserted into the frame at a 45° angle.

[0012] As a further description of the above technical solution: a rotating shaft is fixedly connected to the bottom of the inner wall of the first inclined support plate, and a rotating roller is rotatably connected to the outer ring of the rotating shaft.

[0013] By adopting the above technical solution, the position of the rotating roller is limited by the rotating shaft, and the rotating roller can easily insert the inclined support plate.

[0014] As a further description of the above technical solution: the rear end of the first diagonal brace is slidably connected to a limit block, and the rear end of the limit block is threadedly connected to a bolt.

[0015] By adopting the above technical solution, the limiting block and the first inclined plate can be fixed or disassembled by bolts.

[0016] As a further description of the above technical solution: a slider is slidably connected in the middle of the inner wall of the first inclined plate, and an auxiliary inclined plate is fixedly connected to the bottom of the slider.

[0017] By adopting the above technical solution, the auxiliary bracing plate can provide auxiliary support for the first bracing plate and apply the force on the first bracing plate downward.

[0018] As a further description of the above technical solution: a rubber limiting ring is fixedly connected to the bottom of the auxiliary diagonal brace, and the outer ring of the rubber limiting ring passes through and is slidably connected to the frame.

[0019] By adopting the above technical solution, the rubber limiting ring and the groove at the frame cooperate with each other to ensure that the position of the auxiliary diagonal brace can be fixed.

[0020] As a further description of the above technical solution: a base is cast on the other side of the top of the ground, and a high-voltage tower is fixedly connected to the top of the base.

[0021] By adopting the above technical solutions, the high-voltage tower itself has a huge self-weight load, and at the same time it will also bear external forces such as wind load, ice load, and wire breakage tension. The base can evenly transfer these loads to the stable soil or rock layers underground, avoiding foundation settlement or tower tilting due to excessive local pressure, and ensuring the overall mechanical balance of the tower structure.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a protective structure for power tower foundations, which can effectively disperse the radial force generated by the excavation of the surrounding foundation pits on the high-voltage tower base, and rationally transmit the force to the deep ground layer and the concrete protective structure, preventing the tower from tilting or collapsing, and ensuring the structural stability of the high-voltage tower foundation. The diagonal bracing components of the protective structure have a specific angle of snap-fit ​​limiting design, which can prevent them from displacing in unexpected directions and improve the reliability of protection. The auxiliary diagonal bracing plates can be flexibly extended and retracted through sliders, and can be easily fixed with bolts and limiting blocks. The overall structure is easy to disassemble and assemble, which is conducive to the recycling and reuse of components. Initial protection can be formed through the concrete wall, and the multi-layer protective structure can bear and disperse the force layer by layer, further strengthening the overall effect of foundation protection. Moreover, the connection between the concrete foundation piles and the frame is stable, which can provide solid force support for the entire protection system. Attached Figure Description

[0023] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a ground-level sectional perspective view of the present invention; Figure 3 This is a schematic diagram of the first bolt of this utility model; Figure 4 This is an exploded view of the diagonal brace plate of this utility model; Figure 5 This is an exploded view of the limiting block of this utility model.

[0024] Legend: 1. Ground; 2. Groove; 3. Concrete foundation pile; 4. Frame; 5. Nut; 6. Fixing plate; 7. First diagonal brace plate; 8. Limiting plate; 9. Rotating shaft; 10. Rotating roller; 11. Sliding block; 12. Limiting block; 13. Bolt; 14. Auxiliary diagonal brace plate; 15. Rubber limiting ring; 16. Concrete wall; 17. High-voltage tower; 18. Base. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] To further understand the contents of this utility model, a detailed description of this utility model will be provided with reference to the accompanying drawings.

[0027] Reference Figure 1 and Figure 2 The present invention provides a protective structure for the foundation of a power tower, including a ground surface 1, on the other side of which a pipe gallery pit is provided. This device ensures that the surrounding high-voltage towers 17 are prevented from tilting or collapsing during the excavation of the pipe gallery pit. A base 18 is poured on the other side of the top of the ground surface 1, and the high-voltage tower 17 is fixedly connected to the top of the base 18. During the excavation of the pipe gallery pit, the high-voltage tower 17 and the base 18 exert a radial force on the pipe gallery pit.

[0028] Reference Figure 3 - Figure 5A groove 2 is formed on one side of the top of ground 1. This groove 2 is excavated before excavation to facilitate the placement of the protective structure. Several concrete piles 3 are poured at the bottom of the groove 2. The concrete piles 3 can disperse the radial force into a vertical force through the first diagonal bracing plate 7, distributing the force to the deeper layers of ground 1. The top of the concrete piles 3 is threaded with a nut 5, and a threaded rod is set on the top of the concrete piles 3. A frame 4 is set at the bottom of the nut 5, which can be used to fix the position of the frame 4. The frame 4 is connected to the concrete piles 3 through the nut 5. A concrete wall 16 is poured in the middle of the top of ground 1. The concrete wall 16 provides initial protection and bears the radial force dispersed by the first diagonal bracing plate 7. A fixing plate 6 is slidably connected to one side of the top of the frame 4, and the first diagonal bracing plate 7 is fixedly connected to the other side of the fixing plate 6. The fixing plate 6 can be used to install the first diagonal bracing plate 7 above the frame 4. A limiting plate 8 is fixedly connected to one side of the first diagonal bracing plate 7. The limiting plate 8 and the groove of the frame 4 cooperate with each other to facilitate the fixation of the first diagonal bracing plate 7. To prevent the first diagonal brace 7 from moving upwards or radially, the outer wall of the limiting plate 8 is slidably connected to the frame 4. A rotating shaft 9 is fixedly connected to the bottom of the inner wall of the first diagonal brace 7, and a rotating roller 10 is rotatably connected to the outer ring of the rotating shaft 9. The rotating roller 10 moves at the frame 4, which facilitates the insertion of the limiting plate 8 into the corresponding slot. A limiting block 12 is slidably connected to the rear end of the first diagonal brace 7. The limiting block 12 can fix the position of the slider 11. A bolt 13 is threadedly connected to the rear end of the limiting block 12. The middle of the inner wall of the first diagonal brace 7 is slidably connected to... There is a slider 11, and an auxiliary diagonal support plate 14 is fixedly connected to the bottom of the slider 11. The auxiliary diagonal support plate 14 can be slid out from the first diagonal support plate 7 through the slider 11, which facilitates the recycling of the bracket. A rubber limiting ring 15 is fixedly connected to the bottom of the auxiliary diagonal support plate 14. The auxiliary diagonal support plate 14 can be fixed by the rubber limiting ring 15 being inserted into the corresponding groove of the frame 4. The outer ring of the rubber limiting ring 15 passes through and slides through the frame 4. The diagonal support plate of this bracket can only be inserted at 45° or pulled out at 45°, and cannot be pulled out radially or vertically.

[0029] Working principle: First, a groove 2 is excavated in the ground 1 next to the base 18 of the high-voltage tower 17 that needs protection, and several concrete piles 3 are poured at the bottom of the groove 2. The frame 4 is fitted onto the threaded rod at the top of the concrete piles 3, and then the frame 4 is fixed to the concrete piles 3 by tightening the nuts 5. At the same time, a concrete wall 16 is poured in the middle of the top of the ground 1 as the primary protection structure. First, the auxiliary diagonal brace 14 is slid into the first diagonal brace 7 by the slider 11. Then, the position of the auxiliary diagonal brace 14 is fixed by the cooperation of the limiting block 12 and the bolt 13. The fixing plate 6, together with the first diagonal brace 7, slides to the corresponding position at the top of the frame 4, so that the first diagonal brace 7 is inserted into the frame 4 at a 45° angle. During the process, the roller 10 on the outer ring of the rotating shaft 9 is used to assist the sliding, so that the limiting plate 8 passes through and is inserted into the corresponding groove of the frame 4. The first diagonal brace 7 is initially fixed, and the rubber limiting ring 15 at the bottom of the auxiliary diagonal brace 14 passes through and is locked into the corresponding slot of the frame 4. When the excavation of the pipe gallery pit causes the high-voltage tower 17 and the base 18 to generate radial forces toward the pit, the first diagonal brace 7 disperses the radial forces on the frame 4 into radial, vertical, and inclined forces. The vertical force is transmitted to the deep ground 1 through the concrete pile 3, and the dispersed radial force is borne by the concrete wall 16. The auxiliary diagonal brace 14 provides auxiliary support for the first diagonal brace 7 and transmits the force it receives downward, thereby protecting the foundation of the high-voltage tower 17 and preventing it from tilting or collapsing. Moreover, the diagonal brace of this structure can only be locked in or pulled out at 45° and cannot be pulled out radially or vertically, ensuring the stability of the protection. Finally, the frame 4 and other structures are retrieved through the above operation.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective structure for a power tower foundation, comprising a ground surface (1), characterized in that: A groove (2) is provided on one side of the top of the ground (1). Several concrete piles (3) are poured at the bottom of the groove (2). Nuts (5) are threaded to the top of the concrete piles (3). A frame (4) is provided at the bottom of the nut (5). A concrete wall (16) is poured in the middle of the top of the ground (1).

2. The power tower foundation protection structure according to claim 1, characterized in that: A fixed plate (6) is slidably connected to one side of the top of the frame (4), and a first diagonal brace (7) is fixedly connected to the other side of the fixed plate (6).

3. The power tower foundation protection structure according to claim 2, characterized in that: The first diagonal brace (7) is fixedly connected to a limiting plate (8) on one side, and the outer wall of the limiting plate (8) is connected to the frame (4) through and in a sliding manner.

4. The power tower foundation protection structure according to claim 2, characterized in that: The bottom of the inner wall of the first diagonal brace (7) is fixedly connected to a rotating shaft (9), and the outer ring of the rotating shaft (9) is rotatably connected to a rotating roller (10).

5. The power tower foundation protection structure according to claim 2, characterized in that: The first diagonal brace (7) is slidably connected to a limit block (12) at its rear end, and the limit block (12) is threadedly connected to a bolt (13) at its rear end.

6. The power tower foundation protection structure according to claim 2, characterized in that: A slider (11) is slidably connected to the middle of the inner wall of the first diagonal brace (7), and an auxiliary diagonal brace (14) is fixedly connected to the bottom of the slider (11).

7. A power tower foundation protection structure according to claim 6, characterized in that: The bottom of the auxiliary diagonal brace (14) is fixedly connected to a rubber limiting ring (15), and the outer ring of the rubber limiting ring (15) is connected to the frame (4) through and in a sliding manner.

8. The power tower foundation protection structure according to claim 1, characterized in that: A base (18) is cast on the other side of the top of the ground (1), and a high-voltage tower (17) is fixedly connected to the top of the base (18).

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