A method of constructing a tower foundation reinforcement device

Abstract

This invention relates to a method for constructing a reinforcement device for a steel tower foundation, comprising the following steps: Step 1: pouring concrete for the steel tower foundation; Step 2: constructing and installing the reinforcement device, wherein the reinforcement device comprises at least two sets of reinforcement mechanisms installed at the bottom of the steel tower foundation, and the at least two sets of reinforcement mechanisms are equidistantly distributed along the circumference of the steel tower foundation. Each set of reinforcement mechanisms comprises a front pile and a rear pile vertically opposite to each other and spaced apart. The top of the rear pile is lower than the top of the front pile, and inclined beams are fixedly installed between the top of the rear pile and the pile body of the front pile. The front piles are all located close to the steel tower foundation, and a lower support plate located below the steel tower foundation is fixedly installed on the side of the front pile closest to the steel tower foundation. The lower support plate is connected to the steel tower foundation by a connector, which is a rod-shaped structure. This invention improves the steel tower foundation's resistance to settlement and deformation, and also improves its pull-out resistance, by installing reinforcement mechanisms on the steel tower foundation.

Description

Technical Field

[0001] This invention belongs to the field of tower reinforcement technology, and in particular relates to a method for constructing a tower foundation reinforcement device. Background Technology

[0002] Currently, most existing tower foundations lack reinforcement devices. Therefore, when dealing with the settlement problem caused by water subsidence in collapsible loess areas, the existing tower foundations are prone to settlement and deformation during long-term use under the influence of upper loads and external environmental forces, leading to tower foundation damage. In other words, the anti-settlement and deformation capacity of existing tower foundations needs to be improved. Thus, there are still shortcomings and deficiencies in the existing technology. Summary of the Invention

[0003] The purpose of this invention is to provide a method for constructing a tower foundation reinforcement device to solve the problems mentioned in the background art.

[0004] The technical solution adopted by the present invention to solve the above problems is as follows: A method for constructing a steel tower foundation reinforcement device includes the following steps: Step 1: Construction and pouring of the tower foundation; Step 2: Construction and installation of the reinforcement device. The reinforcement device includes at least two sets of reinforcement mechanisms installed at the bottom of the tower foundation. The two sets of reinforcement mechanisms are equidistantly distributed along the circumference of the tower foundation. Each set of reinforcement mechanisms includes a front pile and a rear pile that are vertically opposite to each other and spaced apart. The top of the rear pile is lower than the top of the front pile. Inclined beams are fixed between the top of the rear pile and the pile body of the front pile. The front piles are all located close to the tower foundation. A lower support plate located below the tower foundation is fixed on the side of the front pile closest to the tower foundation. The lower support plate is connected to the tower foundation by a connector, which is a rod-shaped structure.

[0005] Furthermore, each of the front piles is fixedly equipped with an upper support plate symmetrically arranged with the lower support plate on the side near the tower foundation. The upper support plates are all located above the bottom of the tower foundation, and the upper support plates are also connected to the tower foundation through the connector.

[0006] Furthermore, in step one: the tower foundation is a stepped foundation. The first step is to position and lay out the lines; the second step is to excavate the foundation pit for the tower foundation; the third step is to place the steel reinforcement cage of the tower foundation into the foundation pit and install the formwork on the steel reinforcement cage; the fourth step is to pour concrete and reserve prefabricated through holes for installing connectors on the tower foundation; the fifth step is to remove the formwork and conduct acceptance testing of the tower foundation; the sixth step is to make the tower foundation circumferentially suspended by excavating the foundation pit.

[0007] Furthermore, step two also includes the following steps: S1: Post-pile construction pouring; S2: Pouring of the front pile; S3: Construction and pouring of inclined beams; S4: Construction and pouring of upper and lower support plates; S5: Install connectors.

[0008] Furthermore, in S1: First, using the location of the tower foundation as a reference, position and lay out the lines; second, excavate the foundation pit for the rear pile, and leave a 190-210mm soil layer at the base, which is then manually cleared to the design elevation; third, place the reinforcing cage for the rear pile in the foundation pit, and install formwork on the reinforcing cage; fourth, pour concrete, and install reinforcing bars parallel to the inclined beam on the side of the rear pile closest to the tower foundation; fifth, remove the formwork, and conduct acceptance testing of the rear pile.

[0009] Furthermore, in S2: First, using the positions of the tower foundation and the rear pile as references, locate and lay out the lines; second, excavate the foundation pit of the front pile, leaving a 190-210mm soil layer at the base, which is then manually cleared to the design elevation, ensuring that the foundation pit of the front pile is connected to the circumferentially suspended position of the tower foundation; third, place the reinforcing cage of the front pile into the foundation pit, and install formwork on the reinforcing cage; fourth, pour concrete, and install reinforcing bars on the side of the front pile closest to the tower foundation, corresponding to the positions of the upper and lower support plates; fifth, remove the formwork, and conduct acceptance testing of the front pile.

[0010] Furthermore, in S3: First, place the reinforcing cage of the inclined beam between the front and rear piles, and connect the reinforcing cage of the inclined beam to the pre-reserved reinforcing bars on the rear pile; Second, install the formwork on the reinforcing cage of the inclined beam; Third, pour concrete; Fourth, remove the formwork and conduct acceptance testing of the inclined beam.

[0011] Furthermore, in S4: First, place the upper support plate's reinforcing cage above the bottom of the tower foundation and connect it to the pre-reserved reinforcing bars on the front pile; simultaneously, place the lower support plate's reinforcing cage in a suspended position below the tower foundation and connect it to the pre-reserved reinforcing bars on the front pile; Second, install formwork on both the upper and lower support plate's reinforcing cages; Third, simultaneously pour concrete for both the upper and lower support plates, and reserve installation openings for connecting components on both the upper and lower support plates; Fourth, remove the formwork and conduct acceptance testing on the upper and lower support plates.

[0012] Furthermore, in S5: First, the connector is passed through the installation port and inserted into the reserved through hole of the tower foundation; second, epoxy resin adhesive is grouted between the connector and the inner wall of the installation port and between the connector and the wall of the precast through hole for anchoring; third, epoxy resin adhesive is grouted at the gaps between the tower foundation and the front pile, the upper support plate, and the lower support plate to repair the gaps, and finally the soil is backfilled.

[0013] Furthermore, both the upper and lower support plates are vertically provided with oppositely positioned mounting openings, and the bottom of the tower foundation is provided with a prefabricated through hole opposite to the mounting opening. The connector passes through the mounting opening and the prefabricated through hole in sequence, and the connector is connected to the inner wall of the mounting opening and the connector is connected to the wall of the prefabricated through hole by epoxy resin adhesive.

[0014] The beneficial effects of the present invention by adopting the above technical solution are as follows: The reinforcement mechanism of the present invention includes a front pile and a rear pile, and an inclined beam is installed between the front pile and the rear pile to form an inclined H-shaped support structure. By setting a lower support plate and connecting parts, the reinforcement mechanism can be installed on the outside of the bottom of the tower foundation. In use, by installing at least two sets of inclined H-shaped reinforcement mechanisms at the bottom of the tower foundation, the anti-settlement deformation capacity of the tower foundation can be improved, and the pull-out capacity of the tower foundation can also be improved. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the reinforcement mechanism of the present invention; Figure 2 This is a schematic diagram of the reinforcement mechanism of the present invention in use. Figure 3 This is a construction flowchart of the present invention; Figure 4 A schematic diagram of the finite element simulation model before the reinforcement of the tower foundation; Figure 5 This is a schematic diagram of the finite element simulation model of the reinforcement mechanism of the present invention after strengthening the tower foundation; Figure 6 Displacement cloud map before reinforcement of the tower foundation; Figure 7 This is a displacement cloud diagram of the reinforcement mechanism of the present invention after reinforcing the tower foundation; Figure 8 A schematic diagram showing the distribution of the plastic zone around the tower foundation before reinforcement; Figure 9 This is a schematic diagram showing the distribution of the plastic zone around the iron tower foundation after the reinforcement mechanism of the present invention has been used to reinforce it.

[0016] Attached reference numerals: 1. Tower foundation; 2. Reinforcing mechanism; 21. Front pile; 22. Rear pile; 23. Inclined beam; 24. Lower support plate; 25. Mounting port; 26. Upper support plate; 3. Connecting component. Detailed Implementation

[0017] To make the objectives, technical solutions, and beneficial effects of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0018] like Figures 1 to 3 As shown, the present invention provides a method for constructing a tower foundation reinforcement device, comprising the following steps: Step 1: Construction and pouring of the tower foundation; Step 2: Construction and installation of the reinforcement device. The reinforcement device includes at least two sets of reinforcement mechanisms 2 installed at the bottom of the tower foundation 1, and at least two sets of reinforcement mechanisms 2 are equidistantly distributed along the circumference of the tower foundation 1. In this invention, the number of reinforcement mechanisms 2 is set to four sets. Each set of reinforcement mechanisms 2 includes a front pile 21 and a rear pile 22 that are vertically opposite to each other and spaced apart. The top of the rear pile 22 is lower than the top of the front pile 21, while the bottom of the rear pile 22 can be set to be flush with the bottom of the front pile 21. The top of the rear pile 22 is flush with the top of the front pile 21. Inclined beams 23 are fixedly installed between the bodies, and the front piles 21 and rear piles 22 can form an inclined h-shaped support structure with the inclined beams 23. The front piles 21 are all set close to the iron tower foundation 1, and the side of the front piles 21 close to the iron tower foundation 1 is fixedly equipped with a lower support plate 24 located below the iron tower foundation 1. The bottom surface of the lower support plate 24 can be set as an inclined slope. The lower support plate 24 and the iron tower foundation 1 are connected by connectors 3. The connectors 3 are rod-shaped structures and are used to connect the reinforcement mechanism 2 to the iron tower foundation 1.

[0019] Specifically, during use, by installing at least two sets of inclined h-shaped reinforcement mechanisms 2 at the bottom of the tower foundation 1, the load that was originally directly transmitted from the tower foundation 1 to the surrounding soil can be transmitted through the reinforcement mechanisms 2. This allows the load to bypass the soil around the tower foundation 1 and be transmitted to the reinforcement mechanisms 2 and the surrounding land, distributing the load over a larger area of ​​soil. This improves the tower foundation 1's resistance to settlement and deformation, and also enhances its resistance to overturning and uplift.

[0020] Furthermore, such as Figure 1 and Figure 2As shown, each of the front piles 21 near the tower foundation 1 is fixed with an upper support plate 26 symmetrically arranged with the lower support plate 24. The upper support plates 26 are all located above the bottom of the tower foundation 1, and the top surface of the upper support plate 26 can be set as a downward inclined surface. In addition, the shape, size and position of the upper support plate 26 and the lower support plate 24 can be designed according to the load transfer path of the tower foundation 1 and the bearing characteristics of the foundation. The upper support plate 26 and the tower foundation 1 are also connected by the connecting piece 3. Specifically, by setting the upper support plate 26, the contact area between the reinforcement mechanism 2 and the tower foundation 1 can be increased. In addition, the upper support plate 26, the lower support plate 24 and the front pile 21 can form a groove that can be locked at the bottom edge of the tower foundation 1, and the upper support plate 26 and the tower foundation 1 are also connected by the connecting piece 3, thereby improving the connection strength between the reinforcement mechanism 2 and the tower foundation 1.

[0021] Furthermore, in step one: the tower foundation 1 is a stepped foundation used in existing technologies for collapsible loess areas. The first step is to locate and lay out the foundation according to the design drawings; the second step is to excavate the foundation pit for the tower foundation 1 according to the design requirements; the third step is to place a steel cage, whose shape matches that of the tower foundation 1, into the foundation pit and install formwork on the steel cage; the fourth step is to pour concrete and reserve prefabricated through holes for installing connectors 3 on the tower foundation 1. After pouring, the concrete is cured according to specifications; the fifth step is to remove the formwork after the concrete reaches the design strength and conduct acceptance testing on the dimensions, position, and elevation of the tower foundation 1 to form the tower foundation 1; the sixth step is to excavate the foundation pit to make the tower foundation 1 circumferentially suspended.

[0022] Furthermore, step two also includes the following steps: S1: Construction and pouring of rear pile 22; S2: Construction and pouring of front pile 21; S3: Construction and pouring of inclined beam 23; S4: Construction and pouring of upper and lower support plates; S5: Install connector 3.

[0023] Specifically, after the tower foundation 1 is poured, multiple reinforcement mechanisms 2 can be constructed simultaneously, and the construction standards of both the tower foundation 1 and the reinforcement mechanisms 2 comply with the relevant provisions of GB50204-2015 "Code for Acceptance of Construction Quality of Concrete Structures".

[0024] Furthermore, in S1: First, using the location of the tower foundation 1 as a reference, position and lay out the lines according to the design drawings; Second, excavate the foundation pit for the rear pile 22 according to the design requirements, and reserve a 190-210mm soil layer at the base, which is then manually cleared to the design elevation; In addition, the depth of the foundation pit for the rear pile 22 can ensure that the bottom of the front pile 21 can penetrate into a relatively stable area of ​​the soil; Third, place a steel cage that matches the shape of the rear pile 22 into the foundation pit for the rear pile 22, and install formwork on the steel cage; Fourth, pour concrete, and install steel bars parallel to the inclined beam 23 on the side of the rear pile 22 near the tower foundation 1, and after pouring, cure the concrete according to regulations; Fifth, after the concrete reaches the design strength, remove the formwork, and conduct acceptance testing on the dimensions, position, and elevation of the rear pile 22 to form the rear pile 22.

[0025] Furthermore, in S2: First, using the positions of the tower foundation 1 and the rear pile 22 as references, the location and layout are determined according to the design drawings; Second, the foundation pit for the front pile 21 is excavated according to the design requirements, and a 190-210mm soil layer is reserved at the base, which is then manually cleared to the design elevation, ensuring that the foundation pit for the front pile 21 is connected to the circumferentially suspended position of the tower foundation 1. Additionally, the depth of the foundation pit for the front pile 21 ensures that the bottom of the front pile 21 can penetrate into a relatively stable area of ​​the soil; Third, the pile is placed in the foundation pit of the front pile 21. The first step is to install a steel cage with a shape that matches the front pile 21, and then install a formwork on the steel cage. The second step is to pour concrete and install steel bars on the side of the front pile 21 that are close to the tower foundation 1, corresponding to the positions of the upper support plate 26 and the lower support plate 24. The steel bars reserved on the front pile 21 have a certain length and are used to install the upper support plate 26 and the lower support plate 24. After the concrete is poured, it is cured in accordance with regulations. The third step is to remove the formwork after the concrete reaches the design strength and to conduct acceptance testing on the size, position and elevation of the front pile 21 to form the front pile 21.

[0026] Furthermore, in S3: First, a steel cage matching the shape of the inclined beam 23 is placed between the front pile 21 and the rear pile 22, and the steel cage of the inclined beam 23 is connected to the steel bars reserved on the rear pile 22; Second, a formwork is installed on the steel cage of the inclined beam 23; Third, concrete is poured, and after pouring, the concrete is cured according to regulations; Fourth, after the concrete reaches the design strength, the formwork is removed, and the dimensions, position, and elevation of the inclined beam 23 are inspected and accepted to form the inclined beam 23.

[0027] Furthermore, in S4: First, a steel cage matching the shape of the upper support plate 26 is placed above the bottom of the tower foundation 1, and the steel cage of the upper support plate 26 is connected to the steel bars pre-reserved on the front pile 21; simultaneously, a steel cage matching the shape of the lower support plate 24 is placed in a suspended position below the tower foundation 1, and the steel cage of the upper support plate 26 is connected to the steel bars pre-reserved on the front pile 21; specifically, the steel bars pre-reserved on the front pile 21 can be directly inserted into the steel cage of the upper support plate 26 or the lower support plate 24 and welded for fixation. This ensures the connection strength between the upper support plate 26 and the front pile 21, and between the lower support plate 24 and the front pile 21, achieving an integrated connection after the concrete has solidified; Second, The first step involves installing formwork on the upper support plate 26 and the lower support plate 24. The second step involves simultaneously pouring concrete onto both the upper and lower support plates 26 and 24, and pre-reserving installation openings 25 on both plates for installing connectors 3. After pouring, the concrete is cured according to specifications. The third step involves removing the formwork after the concrete reaches its design strength, and conducting acceptance tests on the dimensions, position, and elevation of the upper and lower support plates 26 and 24 to form the upper and lower support plates 26 and 24. Furthermore, in this invention, the concrete is manually tested to reach 70% of its design strength before the formwork is removed. Additionally, when positioning and laying out lines in the above steps, a total station or GPS can be used for precise positioning.

[0028] Furthermore, in S5: First, clean the debris inside the installation port 25, pass the connector 3 through the installation port 25, and insert the connector 3 into the reserved through hole of the tower foundation 1; Second, grout epoxy resin adhesive between the connector 3 and the inner wall of the installation port 25 and between the connector 3 and the wall of the pre-cast through hole for anchoring; Third, grout epoxy resin adhesive at the gaps between the tower foundation 1 and the front pile 21, the upper support plate 26, and the lower support plate 24, respectively. Specifically, grout epoxy resin adhesive between the front pile 21 and the tower foundation 1, between the upper support plate 26 and the tower foundation 1, and between the lower support plate 24 and the tower foundation 1 to repair the gaps, improve the connection strength between the reinforcement mechanism 2 and the tower foundation 1, and finally backfill with soil.

[0029] Furthermore, such as Figure 1 and Figure 2As shown, both the upper support plate 26 and the lower support plate 24 have vertically aligned mounting openings 25, the inner diameter of which is larger than the diameter of the connector 3. The bottom of the tower foundation 1 has a prefabricated through hole aligned with the mounting opening 25, the diameter of which is larger than the diameter of the connector 3. The connector 3 passes through the mounting opening 25 and the prefabricated through hole sequentially, and is connected to the inner wall of the mounting opening 25 and the inner wall of the prefabricated through hole using epoxy resin adhesive. Specifically, when the bottom of the tower foundation 1 is thin, a single connector 3 can be used to directly pass through the upper support plate 26, the bottom of the tower foundation 1, and the lower support plate 24 sequentially. In this case, the connector 3 can also be configured as... The threaded rod allows for initial fixation of the connector 3 by fitting nuts at both ends during installation, followed by grouting with epoxy resin adhesive. When the bottom of the tower foundation 1 is thicker, a connector 3 can be installed between the upper support plate 26 and the tower foundation 1, and between the lower support plate 24 and the tower foundation 1. Grouting with epoxy resin adhesive ensures the connector 3 is firmly fixed, guaranteeing the connection strength between the reinforcement mechanism 2 and the tower foundation 1. Ultimately, this allows the reinforcement mechanism 2 and the tower foundation 1 to be tightly connected, distributing the tower load across a wider area of ​​soil and ensuring the reinforcement effect of the reinforcement mechanism 2 on the tower foundation 1.

[0030] Furthermore, to verify the reinforcement effect of the reinforcement mechanism 2 of the present invention on the tower foundation 1, the present invention uses the geotechnical engineering simulation software ABAQUS for numerical simulation and comparative analysis. A tower foundation in the Loess Plateau is selected as the research object, and the foundation type is a stepped foundation. Finite element simulation models before and after reinforcement are established respectively, as follows: Figure 4 and Figure 5 As shown, the materials of the tower foundation 1 and the present invention are C80 concrete with a density of 2 g·m⁻³, a Poisson's ratio of 0.3, and an elastic modulus of 3 × 10⁴ MPa. The selected soil is low liquid limit clay with strong collapsibility, a dry density of 1.3 g·m⁻³, a Poisson's ratio of 0.3, an elastic modulus of 20 MPa, and a permeability coefficient of 2 × 10⁻⁴ m·s⁻¹. In addition, the initial conditions such as the initial saturation distribution and the loads in the finite element simulation model are set to be consistent with the actual site conditions.

[0031] The comparative analysis indicators of finite element simulation models include displacement, stress transfer path, and the extent, location, and development characteristics of the plastic zone. Displacement contour plots before and after reinforcement, such as... Figure 6 and Figure 7 As shown, the distribution of the plastic zone around the tower foundation 1 before and after reinforcement is as follows: Figure 8 and Figure 9 As shown.

[0032] As can be seen from the above comparative analysis, the reinforcement device of the present invention has a significant advantage in bearing capacity after reinforcing the iron tower foundation 1. It can withstand a higher stress level than the soil around the iron tower foundation 1 without excessive deformation or preventing the soil from generating excessive plastic deformation under lateral force, and redistributes the load, thereby transferring the plastic failure zone to the vicinity of the reinforcement device.

[0033] When the plastic failure zone of the soil surrounding the tower foundation 1 is transferred to the vicinity of the reinforcement device through the reinforcement device, it indicates that the load transfer path has changed. Thus, a large part of the load that was originally transferred directly from the tower foundation 1 to the surrounding soil is now transferred through the reinforcement device. That is, when the tower foundation 1 is reinforced with the reinforcement device, the inclined H-shaped support structure of the reinforcement device bears most of the vertical and horizontal loads from the upper tower, so that the load bypasses the soil around the tower foundation 1 and is transferred to the reinforcement device and its surrounding soil, thereby distributing the load to a larger area of ​​soil and sharing the load that would originally cause plastic failure of the soil around the tower foundation 1.

[0034] In summary, after the reinforcement mechanism 2 of the present invention reinforces the tower foundation 1, the stress concentration area of ​​the tower foundation 1 is relieved, the overall safety factor of the structure is improved, the deformation of the tower foundation 1 is reduced, the stress transmission path is optimized, and the structural stability is improved.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A method of constructing a tower foundation reinforcement device, characterized by: Includes the following steps: Step 1: Construction and pouring of the tower foundation; Step 2: Construction and installation of the reinforcement device. The reinforcement device includes at least two sets of reinforcement mechanisms installed at the bottom of the tower foundation. The two sets of reinforcement mechanisms are equidistantly distributed along the circumference of the tower foundation. Each set of reinforcement mechanisms includes a front pile and a rear pile that are vertically opposite to each other and spaced apart. The top of the rear pile is lower than the top of the front pile. Inclined beams are fixed between the top of the rear pile and the pile body of the front pile. The front piles are all located close to the tower foundation. A lower support plate located below the tower foundation is fixed on the side of the front pile closest to the tower foundation. The lower support plate is connected to the tower foundation by a connector, which is a rod-shaped structure. Each of the front piles is fixedly equipped with an upper support plate symmetrically arranged with the lower support plate on the side closest to the tower foundation. The upper support plates are all located above the bottom of the tower foundation, and the upper support plates are also connected to the tower foundation through the connector. In step one: the tower foundation is a stepped foundation. The first step is to position and lay out the lines; the second step is to excavate the foundation pit of the tower foundation; the third step is to put the steel cage of the tower foundation into the foundation pit and install the formwork on the steel cage. The fourth step is to pour concrete and reserve prefabricated through holes for installing connectors on the tower foundation; the fifth step is to remove the formwork and conduct acceptance testing of the tower foundation; the sixth step is to excavate the foundation pit to make the tower foundation circumferentially suspended. Step two also includes the following steps: S1: Post-pile construction pouring; S2: Pouring of the front pile; S3: Construction and pouring of inclined beams; S4: Construction and pouring of upper and lower support plates; S5: Install connectors; In S1: First, using the location of the tower foundation as a reference, position and lay out the lines; second, excavate the foundation pit for the rear pile, leaving a 190-210mm soil layer at the base, which is then manually cleared to the design elevation; third, place the reinforcing cage for the rear pile into the foundation pit, and install formwork on the reinforcing cage; fourth, pour concrete, and install reinforcing bars parallel to the inclined beam on the side of the rear pile closest to the tower foundation; fifth, remove the formwork, and conduct acceptance testing of the rear pile. The upper and lower support plates are vertically provided with opposite mounting openings. The bottom of the tower foundation is provided with a prefabricated through hole opposite to the mounting opening. The connector passes through the mounting opening and the prefabricated through hole in sequence, and the connector is connected to the inner wall of the mounting opening and the connector is connected to the hole wall of the prefabricated through hole by epoxy resin adhesive.

2. The method of claim 1, wherein: In S2: First, using the positions of the tower foundation and the rear pile as references, locate and lay out the lines; Second, excavate the foundation pit for the front pile, leaving a 190-210mm soil layer at the base, which is then manually cleared to the design elevation, ensuring that the foundation pit for the front pile is connected to the suspended position around the tower foundation; Third, place the reinforcing cage for the front pile into the foundation pit, and install formwork on the reinforcing cage; Fourth, pour concrete, and install reinforcing bars on the side of the front pile closest to the tower foundation, corresponding to the positions of the upper and lower support plates; Fifth, remove the formwork and conduct acceptance testing of the front pile.

3. A method of constructing a tower foundation reinforcement device according to claim 2, wherein: In S3: First, place the reinforcing cage of the inclined beam between the front and rear piles, and connect the reinforcing cage of the inclined beam to the pre-reserved reinforcing bars on the rear pile; Second, install the formwork on the reinforcing cage of the inclined beam; Third, pour concrete; Fourth, remove the formwork and conduct acceptance testing of the inclined beam.

4. The construction method of the iron tower foundation reinforcement device according to claim 3, characterized in that: In S4: First, place the upper support plate's reinforcing cage above the bottom of the tower foundation and connect it to the pre-reserved reinforcing bars on the previous pile; simultaneously, place the lower support plate's reinforcing cage in a suspended position below the tower foundation and connect it to the pre-reserved reinforcing bars on the previous pile; Second, install formwork on both the upper and lower support plate's reinforcing cages; Third, simultaneously pour concrete for both the upper and lower support plates, and reserve installation openings for connecting components on both the upper and lower support plates; Fourth, remove the formwork and conduct acceptance testing on the upper and lower support plates.

5. The construction method of a tower foundation reinforcement device according to claim 4, characterized in that: In S5: First, pass the connector through the installation port and insert it into the reserved through hole of the tower foundation; Second, grout epoxy resin adhesive between the connector and the inner wall of the installation port and between the connector and the wall of the precast through hole for anchoring; Third, grout epoxy resin adhesive into the gaps between the tower foundation and the front pile, upper support plate, and lower support plate to repair the gaps, and finally backfill the soil.

Images