Novel adjusting beam for power tower foundation

Abstract

The utility model belongs to the technical field of foundation adjustment, and particularly relates to a novel adjusting beam for a power tower foundation. Comprising a hoop assembly used for being connected to the side face of a foundation; the adjusting beam is connected to the outer side of the connecting hoop; the bearing platform beams are arranged on the periphery of the power tower foundation and located below the adjusting beams; the adjusting assembly comprises a pressure applying part and a lead screw, the pressure applying part is connected to the upper end of the lead screw, the lead screw penetrates through the adjusting beam, the lower side of the lead screw is connected with a nut, and the pressure applying part and the nut can be connected to the lead screw to clamp the adjusting beam; the problem that the foundation of the power tower inclines due to sedimentation or collapse of surrounding soil can be effectively solved, so that potential safety hazards caused by inclination of the power tower are avoided; and in addition, the adjusting beam can be stably pressed in the later period, and potential safety hazards caused by serious deflection of the foundation of the power tower due to large warping are avoided.

Description

Technical Field

[0001] This utility model belongs to the field of foundation adjustment technology, specifically relating to a novel adjustment beam for power tower foundations. Background Technology

[0002] Nowadays, with the vigorous development of the industrial economy, electricity consumption has also increased. Therefore, many power transmission lines need to pass through coal mining subsidence areas, requiring the construction of power towers in these areas. During the construction of power towers, concrete foundations need to be made on the ground to facilitate the installation and fixation of the power towers. Although various methods are used to treat this area, the surface structure is still damaged to varying degrees. The natural density is low and the porosity is high, resulting in loose foundation soil, reduced bearing capacity, and ultimately increased settlement of the power tower foundation, leading to varying degrees of surface collapse and cracks. This causes the power towers to tilt, shift longitudinally and laterally, and exhibit conductor and ground wire pull-out phenomena, bringing unsafe factors to the operation and maintenance of transmission lines.

[0003] After the underground coal seam is mined, the overlying rock strata in the goaf lose support, disrupting the equilibrium and leading to collapses, caving, and bending deformation. If not addressed and prevented in time, this can progress to ground subsidence, surface collapse, and the formation of moving basins. Since power towers are a crucial component of transmission lines, their safe operation is essential for ensuring uninterrupted power supply to users. To prevent the collapse and tilting of power towers in goaf areas, ensure the safe operation of transmission lines in these areas, guarantee regional economic development and electricity supply for industrial, agricultural, and residential use, and ensure a safe power supply to the region, it is necessary to address the issues in goaf management. The foundations of power towers within the area are reinforced and protected to address potential line hazards. Current technologies involve external reinforcement, specifically constructing an additional concrete foundation around the power tower foundation. This new concrete foundation is divided into upper and lower layers, with the upper layer connected to the power tower foundation. An adjustment device (such as a jack) is then installed between the two layers, allowing the upper foundation to be adjusted while the lower layer remains stationary. By adjusting the level of the upper foundation, the power tower foundation is adjusted and repaired, restoring or maintaining it in a vertical and safe state.

[0004] In the above methods, although the foundation of the power tower can be adjusted through the upper foundation, the newly built upper foundation and the lower foundation need to be stably connected and effectively fixed after adjustment in order to reduce the tilting or deformation caused by subsequent settlement. Summary of the Invention

[0005] Based on this, this application provides a novel adjusting beam for power tower foundations to solve the technical problem in the prior art that after adjustment, the newly built upper and lower foundations cannot be stably connected and effectively fixed to reduce tilting or deformation caused by subsequent settlement.

[0006] The technical solution to the above-mentioned technical problems in this application is as follows:

[0007] A novel adjustable beam for power tower foundations, comprising:

[0008] Clamping assembly for connection to the side of the foundation;

[0009] Adjusting beam, the adjusting beam being connected to the outside of the connecting hoop;

[0010] A foundation beam is provided around the foundation of the power tower and located below the adjusting beam;

[0011] The adjustment assembly includes a pressure-applying part and a lead screw. The pressure-applying part is connected to the upper end of the lead screw, which passes through an adjustment beam and has a nut connected to its lower side. The pressure-applying part and the nut can be connected to the lead screw to clamp the adjustment beam.

[0012] Preferably, the adjusting assembly further includes a connecting sleeve, which is connected to the adjusting beam and sleeved on the lead screw.

[0013] Preferably, both the upper and lower ends of the connecting sleeve are formed with extended eaves in a direction away from the axis of the connecting sleeve.

[0014] Preferably, the pressure-applying part includes a rotating sleeve with threads on its inner wall. The rotating sleeve is connected to the lead screw via the threads, and the lower end face of the rotating sleeve can contact the adjusting beam.

[0015] Preferably, the outer wall of the rotating sleeve is formed with a boss, and the boss has a regular hexagonal structure.

[0016] Preferably, the upper end of the rotating sleeve is closed.

[0017] Preferably, the clamp assembly includes a connecting clamp that can wrap around the outer surface of the power tower foundation, and an adjusting beam is connected to the connecting clamp.

[0018] Preferably, the lower end of the lead screw is fixedly connected to the bearing beam.

[0019] Compared with the prior art, this application has at least the following advantages:

[0020] This application provides a novel adjusting beam for power tower foundations. It enables the correction of the power tower foundation by adjusting the distance between the adjusting beam and the foundation beam at a specific point. Simultaneously, it maintains the distance between the adjusting beam and the foundation beam after adjustment, ensuring the adjusting beam's stability. Furthermore, by directly connecting the adjusting beam to the power tower foundation using clamping components, it can "straighten" the power tower foundation without damaging its original foundation. This effectively solves the problem of power tower tilting caused by surrounding soil subsidence or collapse, thus preventing safety hazards due to tower tilting. Additionally, it allows for subsequent pressure application to stabilize the adjusting beam, preventing significant warping that could lead to severe tower foundation tilting and safety hazards. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the novel adjusting beam for power tower foundations in this application;

[0022] Figure 2 This is a schematic diagram of the adjusting beam in this application;

[0023] Figure 3 This is a partial structural schematic diagram of the adjusting beam in this application;

[0024] Figure 4 This is a schematic diagram of the connecting hoop in this application;

[0025] Figure 5 This is a schematic diagram of the structure of the adjustment component in this application;

[0026] Figure 6 This is a schematic diagram of the sleeve structure of this application;

[0027] Figure 7 and Figure 8 These are schematic diagrams of another form of the novel adjusting beam for power tower foundations in this application.

[0028] In the figure: connecting hoop 101; grouting hole 102; sleeve 201; anchoring steel bar 202; connecting sleeve 301; rotating sleeve 302; threaded rod 303; nut 304; adjusting beam 401; foundation beam 501. Detailed Implementation

[0029] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0030] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "end," "top," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] Please refer to Figures 1 to 8 In one specific embodiment of this application,

[0033] A novel adjustable beam for power tower foundations, comprising:

[0034] Clamping assembly for connection to the side of the foundation;

[0035] Adjusting beam 401, which is connected to the outside of connecting hoop 101;

[0036] A foundation beam 501 is provided around the foundation of the power tower and is located below the adjusting beam 401.

[0037] The adjustment assembly includes a pressure-applying part and a lead screw 303. The pressure-applying part is connected to the upper end of the lead screw 303. The lead screw 303 passes through the adjustment beam 401 and is connected to the lower side of the nut 304. The pressure-applying part and the nut 304 can be connected to the lead screw 303 to clamp the adjustment beam 401.

[0038] Among them, the clamp assembly is a structure that can be connected to the side of the foundation (the concrete foundation for the connection of the power tower legs), which can be a flat plate, a sleeve, or a device connected to the side of the foundation; the adjustment assembly is a structure used to limit the change of the distance between the adjustment beam 401 and the pier beam 501, which can be a support block or other limiting device; the pressure application part can be a counterweight block or device connected to the screw rod 303 from above and pressing on the adjustment beam 401.

[0039] In actual operation, firstly, a support beam 501 is installed around the foundation of the power tower. Then, the clamp assembly is connected to the side of the foundation to connect the two. Next, a suitable number of adjusting components are erected on the support beam 501, ensuring the adjusting components are vertical. Then, an adjusting beam 401 is placed on the support beam 501 and connected to the adjusting components. The lead screw 303 in the adjusting component passes through the adjusting beam 401. The nut 304 is rotated so that it contacts the bottom surface of the adjusting beam 401 when the lead screw 303 rises. This allows the adjusting beam 401 to rest on multiple nuts 304, ensuring that the distance between the adjusting beam 401 and the support beam 501 remains unchanged. Finally, a jack or other lifting device can be used between the adjusting beam 401 and the support beam 501 to lift and adjust the adjusting beam 401. The beam 401 causes the foundation to shift. For example, if the power tower foundation is tilted to the left due to collapse or settlement, the adjusting beam 401 is lifted on the left side by a jack, causing the left side of the adjusting beam 401 to rise. At this time, the adjusting beam 401 is in the form of a "lever" in the left and right directions. Using the lever principle, the foundation is shifted to the right, so that the foundation is restored to a vertical state. During this process, the left side of the adjusting beam 401 will rise away from the nut 304 below. After the adjustment is completed, the nut 304 is turned again to make the rising beam contact the bottom surface of the adjusting beam 401, fixing the height of the adjusting beam 401 and supporting and fixing the space between the adjusting beam 401 and the foundation beam 501, so that the adjusting beam 401 and the foundation beam 501 remain stable to each other. Then, the pressure part is connected to the screw 303 so that the pressure part presses on the adjusting beam 401, and the adjusting beam 401 is clamped by the nut 304 and the pressure part.

[0040] When geological changes cause settlement later, if the regulating beam 401 settles as a whole, and if the regulating beam 401 descends in a horizontal direction, the pressure-applying part can press down on the regulating beam 401 to settle together, ensuring that the distance between the regulating beam 401 and the pier beam 501 does not change. This prevents the regulating beam 401 from tilting relative to the pier beam 501 during settlement, thus avoiding the tilting of the power tower foundation. However, if irregular settlement occurs (i.e., the soil around the pier beam 501 and the different parts of the pier beam 501 settle unevenly), causing the regulating beam 401 to tilt, [further action will be taken]. If one side of the adjusting beam 401 lowers, the other side will warp upwards. At this time, the pressure-applying part can be used to press down on the warped part of the adjusting beam 401, thereby using the screw 303 to pull the pressure-applying part, which is equivalent to the screw 303 pulling the adjusting beam 401, reducing the amount of upward warping displacement of the adjusting beam 401, and reducing the degree of warping of the adjusting beam 401. For example, when the adjusting beam 401 tilts to the right and settles later, the left side of the adjusting beam 401 will warp upwards. At this time, the pressure applied downwards by the pressure-applying part can reduce the amount of warping on the left side of the adjusting beam 401, thereby reducing the impact of subsequent geological changes.

[0041] The above method enables the correction of the power tower foundation by adjusting the distance between the adjusting beam 401 and the pier beam 501 at a certain point. This effectively solves the problem of the power tower foundation tilting due to the surrounding soil settlement or collapse, thus avoiding safety hazards caused by the tilting of the power tower. Furthermore, it allows for the application of pressure to the adjusting beam 401 in the later stages to stabilize it, preventing large warping that could lead to severe tilting of the power tower foundation and safety hazards.

[0042] In addition, the lower end of the lead screw 303 is fixedly connected to the support beam 501, which can prevent the adjusting beam 401 from pulling the lead screw 303 upward when warping occurs on one side of the adjusting beam 401.

[0043] Specifically, an embodiment of the adjustment component in the above process is provided:

[0044] The adjustment assembly also includes a connecting sleeve 301, which is connected to the adjustment beam 401 and is fitted onto the lead screw 303.

[0045] During construction, the lead screw 303 is vertically mounted on the pier beam 501. Then, when the adjusting beam 401 is being manufactured, the connecting sleeve 301 is connected to the adjusting beam 401 to form a single unit. The nut 304 is located below the adjusting beam 401. The connecting sleeve 301 can protect the lead screw 303 during the pouring of the adjusting beam 401, and guide the up and down movement of the adjusting beam 401 on the lead screw 303. This prevents the lead screw 303 from directly contacting the adjusting beam 401, and avoids friction between the lead screw 303 and the adjusting beam 401 during use, preventing debris from clogging the threads on the lead screw 303 or causing thread damage.

[0046] Meanwhile, the pressure-applying part is connected to the upper side of the lead screw 303 and can press against the connecting sleeve 301; that is, the pressure-applying part contacts the connecting sleeve 301 from above and downwards, while the nut 304 moves upwards on the lead screw 303 and contacts the lower part of the connecting sleeve 301. The pressure-applying part and the nut 304 cooperate to clamp the connecting sleeve 301, preventing the connecting sleeve 301 from moving along the axis of the lead screw 303. In other words, after adjustment, the lead screw 303 can be supported on the support beam 501. By connecting the adjusting beam 401 and the connecting sleeve 301, the height of the adjusting beam 401 is kept at the adjusted position and will not decrease. After adjustment, the pressure-applying part presses the connecting sleeve 301, preventing the adjusting beam 401 from dropping at one point and tilting upwards at another point when geological changes occur (settlement, displacement). It can press down the adjusting beam 401, providing downward pressure to the adjusting beam 401 and reducing the tilting of the adjusting beam 401 due to geological changes.

[0047] In addition, in order to improve the connection strength between the connecting sleeve 301 and the adjusting beam 401, both the upper and lower ends of the connecting sleeve 301 are formed with extended eaves in a direction away from the axis of the connecting sleeve 301.

[0048] The extended eaves can increase the contact area between the connecting sleeve 301 and the adjusting beam 401, so that more of the area of ​​the adjusting beam 401 is connected with the connecting sleeve 301 during the pouring process, making the connection between the connecting sleeve 301 and the adjusting beam 401 more secure.

[0049] Specifically, an embodiment of the pressure application section in the above process is provided:

[0050] The pressure-applying part includes a rotating sleeve 302, the inner wall of which is provided with threads. The rotating sleeve 302 is connected to the lead screw 303 by threads, and the lower end face of the rotating sleeve 302 can contact the adjusting beam 401.

[0051] The threaded connection improves the connection strength between the rotating sleeve 302 and the lead screw 303. The rotating sleeve 302 presses down on the connecting sleeve 301, providing downward pressure.

[0052] In addition, in order to facilitate the twisting of the rotating sleeve 302, the outer wall of the rotating sleeve 302 described in this application is formed with a boss and the boss has a regular hexagonal structure.

[0053] In actual use, the boss can be held in place by a wrench and turned by the wrench, which saves effort and ensures that the rotating sleeve 302 can be tightened.

[0054] Furthermore, the upper end of the rotating sleeve 302 is closed, which can prevent rainwater from entering the rotating sleeve 302 and corroding the threads and lead screw 303, thereby improving the protection effect on the lead screw 303.

[0055] Specifically, an embodiment of the clamp assembly in the above process is provided:

[0056] The clamp assembly includes a connecting clamp 101 that can be wrapped around the outer surface of the power tower foundation, and an adjusting beam 401 is connected to the connecting clamp 101;

[0057] During operation, the two connecting hoops 101 are attached to both sides of the power tower foundation, so that the two connecting hoops 101 are attached to the sides respectively, and then the two connecting hoops 101 are connected together with bolts, thereby achieving connection by using the two connecting hoops 101 to fit on the side of the power tower foundation.

[0058] In this way, a quick connection to the power tower foundation can be achieved without having to chisel open the power tower foundation to expose the internal steel bars, thus avoiding any impact on the strength of the power tower foundation and preventing any damage to the power tower foundation.

[0059] In addition, the two connecting hoops 101 are clamped to the power tower foundation by bolts, which can achieve a strong connection. In the height direction, in order to improve the position fixation effect of the two connecting hoops 101;

[0060] Therefore, the connecting hoop 101 is provided with a plurality of grouting holes 102;

[0061] The grout is injected into the gap between the connecting hoop 101 and the power tower foundation through the grouting hole 102, so that the grout fills the gap. After the grout dries and solidifies, it can achieve a tight contact and fit between the connecting hoop 101 and the power tower foundation, thereby making the connection between the connecting hoop 101 and the power tower foundation more thorough and tight.

[0062] In the traditional method, in order to ensure quality and strength, the steel bars are connected to the exposed steel bars after the power tower foundation is chiseled open, and then connected to the external facilities. In this application, it is also necessary to improve the connection strength between the clamp assembly and the adjusting beam 401.

[0063] Therefore, this application also includes a reinforcing part, which is disposed in the adjusting beam 401 and connected to the clamp assembly to improve the connection strength between the adjusting beam 401 and the clamp assembly;

[0064] The reinforcement can be made of steel bars or other steel structures, or other devices that can connect the clamp assembly and the adjusting beam 401;

[0065] During use, after the reinforcing part is connected to the clamp assembly and fixed, the adjusting beam 401 can be connected to the reinforcing part to complete the connection between it and the clamp assembly. Taking the concrete mentioned above as an example, after the reinforcing part (such as steel bar) is fixed to the clamp assembly (connecting hoop 101), a mold can be built around it, and then concrete is poured into the mold. After drying and molding, the adjusting beam 401 can be stably connected to the clamp assembly.

[0066] Specifically, an embodiment of the reinforcement section in the above process is provided:

[0067] The reinforcing part includes a quick-connect part and an anchoring steel bar 202. The quick-connect part is located on the outside of the connecting hoop 101. One end of the anchoring steel bar 202 is connected to the quick-connect part, and the other end is connected to the adjusting beam 401. The quick-connect part can be a positioning sleeve or a device that can quickly position the anchoring steel bar 202 on the outside of the connecting hoop 101.

[0068] During construction, a sufficient number of quick-connect parts are fixed to the outside of the connecting hoop 101, and then the anchoring steel bars 202 are inserted into the corresponding quick-connect parts and fixed together. The fixing method can be to use connectors for connection or direct welding. Then the anchoring steel bars 202 are directly poured into the adjusting beam 401 to complete the construction. Through the above method, the anchoring steel bars 202 can be quickly positioned and fixed, and the anchoring steel bars 202 can be directly connected to the outside of the connecting hoop 101. This eliminates the need to chisel open the original power tower foundation and connect it to the internal steel bars. The connection with the adjusting beam 401 is achieved without damaging the original power tower foundation and the connection strength is guaranteed.

[0069] Specifically, an example is provided for the quick-release section in the above process:

[0070] The quick-installation part includes a sleeve 201, which is connected to the outside of the connecting hoop 101, and one end of the anchoring steel bar 202 is connected to the sleeve 201;

[0071] During construction, a sufficient number of sleeves 201 are fixed to the outside of the connecting hoop 101, and then the anchoring steel bars 202 are inserted into the corresponding sleeves 201 and fixed together. The fixing method can be threaded (both the inner wall of the sleeve 201 and the end of the anchoring steel bar 202 are threaded, so the anchoring steel bar 202 can be screwed into the sleeve 201) or welded. Then the anchoring steel bars 202 are directly poured into the adjusting beam 401 to achieve rapid installation and disassembly of the anchoring steel bars 202.

[0072] Further, see Figures 7 to 8 The diagram shows another shape of the novel adjusting beam described in this application. This structure is suitable for adjustment on the foundation of a power tower with four legs. Figure 1 The diagram shows a single-leg type power tower foundation. The construction process for both types is the same, only the shape is different. Furthermore, the structure in this application can be adjusted according to the number of legs of the power tower on site, which can meet the requirements for use and effectively adjust and protect the power tower.

[0073] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A new type of adjusting beam for the foundation of a power tower, characterized in that, The utility model relates to a power tower foundation adjusting device, which comprises the following parts: a hoop assembly for connecting to the side of the foundation; an adjusting beam connected to the outside of the connecting hoop; a bearing platform beam arranged around the foundation of the power tower and located below the adjusting beam; an adjusting assembly comprising a pressing part and a screw rod, the pressing part being connected to the upper end of the screw rod, the screw rod penetrating through the adjusting beam and being connected at the lower side to a nut, the pressing part and the nut being capable of clamping the adjusting beam on the screw rod.

2. The new type of adjusting beam for the power tower foundation according to claim 1, characterized in that, The adjusting assembly further comprises a connecting sleeve connected to the adjusting beam, the connecting sleeve being sleeved on the screw rod.

3. The new type of adjusting beam for the power tower foundation according to claim 2, characterized in that, The upper and lower ends of the connecting sleeve are both formed with an extension eave in a direction away from the axis of the connecting sleeve.

4. The new type of adjusting beam for the power tower foundation according to claim 1, characterized in that, The pressing part comprises a rotating sleeve, the inner wall of the rotating sleeve being provided with threads, the rotating sleeve being connected to the screw rod through the threads, and the lower end face of the rotating sleeve being capable of contacting the adjusting beam.

5. The new type of adjusting beam for the power tower foundation according to claim 4, characterized in that, A boss is formed on the outer wall of the rotating sleeve and has a regular hexagonal structure.

6. The new type of adjusting beam for the power tower foundation according to claim 4, characterized in that, The upper end of the rotating sleeve is closed.

7. The new type of regulating beam for the power tower foundation according to claim 1, characterized by, The hoop assembly comprises a connecting hoop capable of wrapping around the outer side of the foundation of the power tower, and the adjusting beam is connected to the connecting hoop.

8. The new type of adjusting beam for power tower foundation according to claim 1, characterized in that, The lower end of the screw rod is fixedly connected in the bearing platform beam.

Images