A concrete pole tower foundation

Abstract

The utility model relates to the technical field of tower foundation, especially relates to a concrete tower foundation, including foundation muscle, annular electrode, concrete inner layer, concrete foundation conductive middle layer and concrete foundation outer layer, concrete inner layer is wrapped in the foundation muscle outside, annular electrode is sleeved in concrete inner layer outside, and foundation muscle is connected with annular electrode through concrete inner layer, and concrete foundation conductive middle layer is wrapped in annular electrode outside, and concrete foundation outer layer is wrapped in concrete foundation conductive middle layer outside, and annular electrode is as core conductive component, and cooperation carbon fiber concrete conductive middle layer can construct effective flow channel, and reduce grounding resistance, concrete inner layer and concrete foundation outer layer provide mechanical support for the foundation, guarantee that the foundation has higher bearing capacity, thereby can solve the problem that the grounding performance and bearing performance are difficult to take into account in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of pole and tower foundation technology, and in particular to a concrete pole and tower foundation. Background Technology

[0002] In power transmission systems, concrete tower foundations are critical components ensuring tower stability and grounding safety, requiring simultaneous fulfillment of both grounding and lightning protection needs, as well as mechanical load-bearing capacity. Conventional concrete, under dry conditions, has extremely high resistivity, failing to form an effective current dissipation path in the soil environment, resulting in insufficient grounding resistance to meet the requirements for rapid fault current discharge. Furthermore, the main reinforcement bars, electrodes, and other metal components within the foundation are constantly exposed to the soil's electrolyte environment, making them susceptible to corrosion from groundwater and soil salinity. This not only weakens the foundation's mechanical load-bearing capacity but also causes the grounding resistance to increase annually, necessitating frequent maintenance and severely impacting the reliability of the power system. Current technologies sometimes employ a single conductive material to improve grounding performance, sacrificing concrete strength and corrosion resistance; or, to ensure mechanical performance, ordinary concrete is used, leading to poor grounding effectiveness. These technologies fail to achieve both reduced grounding resistance and extremely high load-bearing capacity, thus failing to meet the demands of complex power engineering scenarios. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a concrete tower foundation that can reduce the grounding resistance of the tower foundation while also ensuring extremely high load-bearing capacity.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A concrete tower foundation includes foundation reinforcement, a ring electrode, an inner concrete layer, a conductive middle layer of the concrete foundation, and an outer concrete foundation layer. The inner concrete layer wraps around the outside of the foundation reinforcement, the annular electrode is sleeved on the outside of the inner concrete layer, and the foundation reinforcement extends through the inner concrete layer and connects with the annular electrode. The conductive middle layer of the concrete foundation is wrapped around the outside of the annular electrode, and the outer layer of the concrete foundation is wrapped around the outside of the conductive middle layer of the concrete foundation.

[0005] Furthermore, the annular electrode is wrapped with a conductive gel layer.

[0006] Furthermore, the thickness of the conductive gel layer ranges from 5mm to 15mm.

[0007] Furthermore, there are multiple annular electrodes, each of which is sleeved on the outer side of the inner concrete layer, and the multiple annular electrodes are spaced apart along the axial direction of the foundation reinforcement.

[0008] Furthermore, the plurality of the annular electrodes are arranged at equal intervals along the axial direction of the foundation reinforcement, and the spacing between two adjacent annular electrodes ranges from 500mm to 800mm.

[0009] Furthermore, the inner concrete layer is made of steel fiber reinforced concrete, and the thickness of the inner concrete layer ranges from 800mm to 1300mm.

[0010] Furthermore, the conductive intermediate layer of the concrete foundation is made of carbon fiber concrete, and the thickness of the conductive intermediate layer of the concrete foundation ranges from 700mm to 1000mm.

[0011] Furthermore, the axes of the inner concrete layer, the conductive middle layer of the concrete foundation, and the outer concrete foundation all coincide with the axis of the foundation reinforcement.

[0012] Furthermore, it also includes anchor bolts set on the outer side of the outer layer of the concrete foundation. One end of the foundation reinforcement passes through the inner layer of concrete, the conductive middle layer of the concrete foundation, and the outer layer of the concrete foundation in sequence, and extends out of the outer layer of the concrete foundation to connect with the anchor bolts.

[0013] Furthermore, the conductive middle layer of the concrete foundation is provided with a first main reinforcement bar, which is located outside the annular electrode. One end of the first main reinforcement bar passes through the conductive middle layer of the concrete foundation and the outer layer of the concrete foundation in sequence and extends to the outside of the outer layer of the concrete foundation. An anchor rod is sleeved on the end of the first main reinforcement bar that extends to the outside of the outer layer of the concrete foundation.

[0014] The beneficial effects of this utility model are as follows: This solution employs a layered structural design consisting of foundation reinforcement, an inner concrete layer, a ring electrode, a conductive middle layer of the concrete foundation, and an outer concrete foundation layer. The ring electrode serves as the core conductive component, and together with the carbon fiber concrete conductive middle layer, it can construct an effective current dissipation channel, reducing grounding resistance. The inner concrete layer and the outer concrete foundation layer provide mechanical support for the foundation, ensuring that the foundation has high load-bearing capacity. This solves the problem of balancing grounding performance and load-bearing capacity in existing technologies. Attached Figure Description

[0015] Figure 1 This is a partial structural schematic diagram of the concrete tower foundation of this utility model; Figure 2 This is a structural schematic diagram of the concrete tower foundation of this utility model; Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle; Figure 4 This is a partial structural schematic diagram of the concrete tower foundation of this utility model; Figure 5This is a top view of the concrete tower foundation of this utility model; Label Explanation: 1. Basic reinforcement; 101. Second main reinforcement; 102. Distribution reinforcement; 2. Circular electrode; 3. Inner concrete layer; 4. Conductive middle layer of concrete foundation; 5. Outer concrete foundation layer; 6. Conductive gel layer; 7. Anchor bolt; 8. First main reinforcement; 9. Anchor rod. Detailed Implementation

[0016] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0017] Please refer to Figure 1 A concrete tower foundation includes a foundation reinforcement 1, a ring electrode 2, an inner concrete layer 3, a conductive middle layer of the concrete foundation 4, and an outer concrete foundation 5. The inner concrete layer 3 is wrapped around the outside of the foundation reinforcement 1, the annular electrode 2 is sleeved on the outside of the inner concrete layer 3, and the foundation reinforcement 1 extends through the inner concrete layer 3 and connects with the annular electrode 2. The conductive middle layer 4 of the concrete foundation is wrapped around the outside of the annular electrode 2, and the outer layer 5 of the concrete foundation is wrapped around the outside of the conductive middle layer 4 of the concrete foundation.

[0018] As can be seen from the above description, the beneficial effects of this utility model are as follows: This solution employs a layered structural design consisting of a foundation reinforcement 1, an inner concrete layer 3, a ring electrode 2, a conductive middle layer 4, and an outer concrete layer 5. The inner concrete layer 3 encases and protects the foundation reinforcement 1, preventing it from being directly eroded by the soil. The ring electrode 2, in conjunction with the conductive middle layer 4, forms a dedicated conductive path, solving the problem of a single conductive path in traditional foundations. The outer concrete layer 5 isolates the soil from contact with the conductive middle layer 4, achieving a synergistic improvement in foundation grounding performance, corrosion resistance, and mechanical stability, thus laying a structural foundation for subsequent performance optimization.

[0019] For further details, please refer to Figure 2 and Figure 3 The annular electrode 2 is wrapped with a conductive gel layer 6.

[0020] As described above, the conductive gel layer 6 is wrapped around the annular electrode 2. This conductive gel layer 6 can fill the gap between the annular electrode 2 and the conductive intermediate layer 4, which can significantly reduce the contact resistance between the annular electrode 2 and the conductive intermediate layer 4 of the concrete foundation, improve the current conduction efficiency, and further optimize the grounding performance. At the same time, the conductive gel layer 6 has good corrosion resistance and can form an isolation barrier on the surface of the annular electrode 2, preventing the soil electrolyte from contacting the annular electrode 2, effectively slowing down the corrosion rate of the electrode, thereby avoiding the increase in grounding resistance and the decrease in bearing capacity caused by corrosion.

[0021] Furthermore, the thickness of the conductive gel layer 6 ranges from 5mm to 15mm.

[0022] As can be seen from the above description, by limiting the thickness range of the conductive gel layer 6 to 5mm-15mm, it is possible to ensure that the conductive gel layer 6 fully wraps the annular electrode 2 to achieve stable resistance reduction and corrosion prevention effects, while avoiding material waste or affecting the structural bonding between the annular electrode 2 and the conductive middle layer 4 of the concrete foundation due to excessive thickness. Under the premise of ensuring the dual functions of "grounding-bearing", both economy and structural stability are taken into account.

[0023] For further details, please refer to Figure 4 and Figure 5 The number of annular electrodes 2 is multiple, and the multiple annular electrodes 2 are all sleeved on the outside of the inner concrete layer 3, and the multiple annular electrodes 2 are spaced apart along the axial direction of the foundation reinforcement 1.

[0024] As can be seen from the above description, multiple spaced ring electrodes 2 form a three-dimensional conductive network with the carbon fiber concrete conductive middle layer. Compared with a single ring electrode 2, this can significantly increase the current dissipation path, avoid current concentration in local areas, and further reduce the grounding resistance. At the same time, the three-dimensionally distributed ring electrodes 2 can better cooperate with the layered concrete structure, enhance the integrity of the internal structure of the foundation, and help improve the mechanical stability of the foundation.

[0025] For further details, please refer to Figure 4 The multiple ring electrodes 2 are arranged at equal intervals along the axial direction of the foundation rib 1, and the spacing between two adjacent ring electrodes 2 is in the range of 500mm-800mm.

[0026] As described above, the ring electrode 2 forms a dense conductive network. The spacing between two adjacent ring electrodes 2, ranging from 500mm to 800mm, increases the density of the current conduction path, reduces the current transmission resistance within the concrete, and allows lightning current (or leakage current during operation) to be more smoothly and evenly dispersed into the ground through the foundation. This effectively reduces the grounding resistance of the tower and meets the requirements of the transmission line grounding code for lightning protection grounding. The smaller electrode spacing avoids local concentration of the electric field, making the electric field distribution within the foundation more uniform. This prevents excessively high local electric field strength from causing electrochemical degradation of the concrete, ensuring the long-term conductive stability and structural durability of the foundation. Furthermore, the spacing between two adjacent ring electrodes 2, ranging from 500mm to 800mm, allows the ring electrode 2 to form a synergistic "conductive matrix" with the conductive middle layer 4 of the concrete foundation. This ensures that under high current conditions (such as lightning strikes), the current is rapidly dispersed, preventing local overheating or a sudden drop in conductivity.

[0027] Furthermore, the inner concrete layer 3 is made of steel fiber reinforced concrete, and the thickness of the inner concrete layer 3 ranges from 800mm to 1300mm.

[0028] As can be seen from the above description, steel fiber reinforced concrete has high compressive and crack resistance, which can effectively withstand the vertical pressure and horizontal bending moment transmitted by the tower foundation, and prevent the main reinforcement from being exposed and corroded due to cracking of the inner concrete layer 3 under stress. The thickness of 800mm-1300mm can ensure that the inner concrete layer 3 has sufficient mechanical stiffness, providing stable wrapping support for the foundation reinforcement 1, while avoiding insufficient mechanical bearing capacity or cost waste caused by improper thickness.

[0029] Furthermore, the conductive intermediate layer 4 of the concrete foundation is made of carbon fiber concrete, and the thickness of the conductive intermediate layer 4 of the concrete foundation ranges from 700mm to 1000mm.

[0030] As can be seen from the above description, carbon fiber concrete has low resistivity and stable conductivity. As a conductive middle layer, it can work efficiently with the ring electrode 2 to construct a continuous current dissipation channel and significantly reduce the grounding resistance. The 700mm-1000mm thickness design can ensure that the ring electrode 2 is completely wrapped, which can ensure that the conductive middle layer 4 of the concrete foundation has sufficient conductive area.

[0031] For further details, please refer to Figure 5 The axes of the inner concrete layer 3, the conductive middle layer 4 of the concrete foundation, and the outer concrete foundation layer 5 all coincide with the axis of the foundation reinforcement 1.

[0032] As can be seen from the above description, the axes of the inner concrete layer 3, the conductive middle layer 4 of the concrete foundation, and the outer concrete foundation layer 5 are all aligned with the axis of the foundation reinforcement 1. The coaxiality design ensures that each layer of the foundation is subjected to uniform stress, avoids local stress concentration caused by axis offset, prevents cracking at the joint between the inner concrete layer 3 and the conductive middle layer 4 of the concrete foundation, and at the same time makes the current conduction path of the ring electrode 2 and the conductive middle layer 4 of the concrete foundation symmetrically distributed, avoiding fluctuations in grounding resistance due to uneven current path, and ensuring consistent grounding performance.

[0033] For further details, please refer to Figure 1 , Figure 2 and Figure 4 It also includes anchor bolts 7 set on the outside of the outer layer 5 of the concrete foundation. One end of the foundation reinforcement 1 passes through the inner layer 3 of the concrete, the conductive middle layer 4 of the concrete foundation and the outer layer 5 of the concrete foundation in sequence and extends out of the outer layer 5 of the concrete foundation to connect with the anchor bolts 7.

[0034] As described above, the connection between the foundation reinforcement 1 and the anchor bolts 7 allows the load of the tower to be efficiently transferred to the foundation reinforcement 1 through the anchor bolts 7, and then distributed from the foundation reinforcement 1 to the inner layer 3 of the steel fiber reinforced concrete. This ensures a clear and efficient load transfer path and further strengthens the bearing capacity of the foundation. At the same time, this connection method makes the installation of the tower and the foundation more convenient and does not damage the collaborative structure of "ring electrode 2-layered concrete". It avoids the degradation of grounding performance or bearing capacity due to installation process, and takes into account both construction convenience and the stability of the "grounding-bearing" dual function.

[0035] For further details, please refer to Figure 1 , Figure 2 and Figure 4 The conductive middle layer 4 of the concrete foundation is provided with a first main reinforcement 8. The first main reinforcement 8 is located outside the annular electrode 2. One end of the first main reinforcement 8 passes through the conductive middle layer 4 and the outer layer 5 of the concrete foundation in sequence and extends to the outside of the outer layer 5 of the concrete foundation. An anchor rod 9 is sleeved on the end of the first main reinforcement 8 that extends out of the outer layer 5 of the concrete foundation.

[0036] As can be seen from the above description, the first main reinforcement 8 can enhance the mechanical strength of the conductive middle layer 4 of the concrete foundation, and prevent the structural deformation of the conductive middle layer 4 of the concrete foundation due to the presence of the ring electrode 2 or the heating of the current. At the same time, it assists the ring electrode 2 in conducting current, forming a double main reinforcement conductive path, improving the grounding reliability. The anchor rod 9 works with the first main reinforcement 8 to penetrate deep into the soil. The pull-out force of the anchor rod 9 restricts the overall displacement of the foundation, which is suitable for soft soil environment and significantly improves the pull-out resistance and overturning resistance of the foundation.

[0037] Please refer to Figures 1 to 5 As shown, Embodiment 1 of this utility model is as follows: Please refer to Figure 1 A concrete tower foundation includes a foundation reinforcement 1, a ring electrode 2, an inner concrete layer 3, a conductive middle layer of the concrete foundation 4, and an outer concrete foundation 5. The inner concrete layer 3 is wrapped around the outside of the foundation reinforcement 1, the annular electrode 2 is sleeved on the outside of the inner concrete layer 3, and the foundation reinforcement 1 extends through the inner concrete layer 3 and connects with the annular electrode 2 (the annular electrode 2 and the foundation reinforcement 1 are connected by welding). The conductive middle layer 4 of the concrete foundation is wrapped around the outside of the annular electrode 2, and the outer layer 5 of the concrete foundation is wrapped around the outside of the conductive middle layer 4 of the concrete foundation.

[0038] Please refer to Figure 2 and Figure 3 The annular electrode 2 is wrapped with a conductive gel layer 6.

[0039] The annular electrode 2 uses iron, which has good electrical conductivity, as the electrode material.

[0040] The thickness of the conductive gel layer 6 ranges from 5mm to 15mm, preferably 7.5mm.

[0041] Please refer to Figure 4 and Figure 5 The number of annular electrodes 2 is multiple, and the multiple annular electrodes 2 are all sleeved on the outside of the inner concrete layer 3, and the multiple annular electrodes 2 are spaced apart along the axial direction of the foundation reinforcement 1.

[0042] Please refer to Figure 4 The foundation reinforcement 1 includes multiple second main reinforcements 101 and multiple distribution reinforcements 102. The multiple second main reinforcements 101 and multiple distribution reinforcements 102 are all located inside the inner layer of concrete 3. The distribution reinforcements 102 penetrate the inner layer of concrete 3 and are connected to the annular electrode 2.

[0043] The plurality of annular electrodes 2 are arranged at equal intervals along the axial direction of the base rib 1, and the spacing between two adjacent annular electrodes 2 is in the range of 500mm-800mm, preferably 650mm.

[0044] The inner concrete layer 3 is made of steel fiber reinforced concrete, and the thickness of the inner concrete layer 3 ranges from 800mm to 1300mm, preferably 1000mm.

[0045] The conductive intermediate layer 4 of the concrete foundation is made of carbon fiber concrete, and the thickness of the conductive intermediate layer 4 of the concrete foundation ranges from 700mm to 1000mm, preferably 800mm.

[0046] The outer layer 5 of the concrete foundation is made of high-strength concrete, and the thickness of the outer layer 5 ranges from 1200mm to 1800mm, preferably 1500mm.

[0047] Please refer to Figure 5 The axes of the inner concrete layer 3, the conductive middle layer 4 of the concrete foundation, and the outer concrete foundation layer 5 all coincide with the axis of the foundation reinforcement 1.

[0048] Please refer to Figure 1 , Figure 2 and Figure 4 It also includes anchor bolts 7 set on the outside of the outer layer 5 of the concrete foundation. One end of the foundation reinforcement 1 passes through the inner layer 3 of the concrete, the conductive middle layer 4 of the concrete foundation and the outer layer 5 of the concrete foundation in sequence and extends out of the outer layer 5 of the concrete foundation to connect with the anchor bolts 7.

[0049] Please refer to Figure 1 , Figure 2 and Figure 4The conductive middle layer 4 of the concrete foundation is provided with a first main reinforcement 8. The first main reinforcement 8 is located outside the annular electrode 2. One end of the first main reinforcement 8 passes through the conductive middle layer 4 and the outer layer 5 of the concrete foundation in sequence and extends to the outside of the outer layer 5 of the concrete foundation. An anchor rod 9 is sleeved on the end of the first main reinforcement 8 that extends out of the outer layer 5 of the concrete foundation.

[0050] The arrangement of the inner concrete layer 3, the conductive middle layer 4 of the concrete foundation, and the outer concrete foundation layer 5 is as follows: 1. The mix design of the inner concrete layer 3 (using steel fiber reinforced concrete) is shown in Table 1:

[0051] Table 1 2. The mix design of the conductive intermediate layer 4 (made of carbon fiber concrete) in the concrete foundation is shown in Table 2:

[0052] Table 2 3. The mix design of the outer layer 5 of the concrete foundation (using high-strength concrete) is shown in Table 3:

[0053] Table 3 The three layers—the inner concrete layer 3, the conductive middle layer 4 of the concrete foundation, and the outer concrete foundation layer 5—are in an indirect dimensional coordination relationship based on "functional priority, coordinated structural specifications, and consideration of economy," rather than a fixed ratio. Carbon fiber is the most expensive material, and the conductive middle layer 4 of the concrete foundation only needs to wrap around the annular electrode 2. The inner layer of the steel fiber reinforced concrete foundation needs to be properly filled with the foundation reinforcement 1. High-strength concrete is relatively the cheapest material, and its proportion can be appropriately increased.

[0054] The mechanical bearing principle of the concrete tower foundation in this scheme is as follows: The vertical pressure, horizontal wind force, and overturning force at the top of the tower are transmitted to the foundation reinforcement 1 through the anchor bolts 7. The foundation reinforcement 1, as the core load-bearing component, evenly distributes the load to the inner concrete layer 3. The inner concrete layer 3, with its high crack resistance and high strength, directly bears and transmits the load, and is the core support for the foundation's "extremely high bearing capacity".

[0055] The high-strength concrete outer layer 5 of the concrete foundation forms a protective and auxiliary load-bearing layer, resisting external environmental erosion such as soil erosion and freeze-thaw cycles. At the same time, it forms a synergistic force-bearing structure with the inner concrete layer 3 and the conductive concrete middle layer, avoiding local stress concentration and further improving the overall mechanical stability of the foundation.

[0056] The first main reinforcement 8 in the conductive middle layer 4 of the concrete foundation works in conjunction with the external anchor rod 9 to enhance the anchoring force between the foundation and the surrounding soil, effectively offsetting the pull-out force and overturning force of the tower. Especially in complex terrain, it further strengthens the foundation's resistance to instability and ensures extremely high bearing capacity.

[0057] The grounding current dissipation principle of the concrete tower foundation in this scheme is as follows: When the tower is struck by lightning or generates an operational leakage current, the current is first conducted through the tower to the anchor bolt 7, and then from the anchor bolt 7 to the foundation reinforcement 1; the foundation reinforcement 1 is directly connected to the annular electrode 2, which quickly transmits the current to multiple annular electrodes 2 spaced apart.

[0058] The conductive gel layer 6 outside the ring electrode 2 can reduce the contact resistance between the ring electrode 2 and the concrete conductive middle layer, allowing the current to enter the concrete conductive middle layer efficiently. The concrete conductive middle layer (made of carbon fiber concrete) forms a dense three-dimensional conductive network with multiple ring electrodes 2 due to its low resistivity, which evenly distributes the current to the surrounding soil, avoids "current dissipation hotspots", and significantly reduces the grounding resistance.

[0059] The first main reinforcement 8 is located in the conductive middle layer of concrete, which can assist the ring electrode 2 in conducting current, widen the current dissipation path, and further optimize the grounding effect. At the same time, the coordinated design of the layered concrete structure and the ring electrode 2 ensures that the mechanical properties of the foundation are not affected during the grounding process, and achieves stable coordination of the dual functions of "grounding-bearing".

[0060] In summary, the concrete tower foundation provided by this utility model features a layered structural design consisting of foundation reinforcement, an inner concrete layer, a ring electrode, a conductive middle layer of the concrete foundation, and an outer concrete foundation layer. The inner concrete layer can wrap and protect the foundation reinforcement, preventing it from being directly eroded by the soil. The ring electrode and the conductive middle layer of the concrete foundation work together to form a dedicated conductive path, solving the problem of a single conductive path in traditional foundations. The outer concrete foundation layer can isolate the soil from contact with the conductive middle layer of the concrete foundation, achieving a synergistic improvement in foundation grounding performance, corrosion resistance, and mechanical stability, laying a structural foundation for subsequent performance optimization.

[0061] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A concrete tower foundation, characterized in that, It includes the foundation reinforcement, the ring electrode, the inner layer of concrete, the conductive middle layer of the concrete foundation, and the outer layer of the concrete foundation; The inner concrete layer wraps around the outside of the foundation reinforcement, the annular electrode is sleeved on the outside of the inner concrete layer, and the foundation reinforcement extends through the inner concrete layer and connects with the annular electrode. The conductive middle layer of the concrete foundation is wrapped around the outside of the annular electrode, and the outer layer of the concrete foundation is wrapped around the outside of the conductive middle layer of the concrete foundation.

2. The concrete tower foundation according to claim 1, characterized in that, The annular electrode is wrapped with a conductive gel layer.

3. The concrete tower foundation according to claim 2, characterized in that, The thickness of the conductive gel layer ranges from 5mm to 15mm.

4. The concrete tower foundation according to claim 1, characterized in that, The number of annular electrodes is multiple, and the multiple annular electrodes are all sleeved on the outer side of the inner layer of concrete, and the multiple annular electrodes are spaced apart along the axial direction of the foundation reinforcement.

5. The concrete tower foundation according to claim 4, characterized in that, Multiple ring electrodes are arranged at equal intervals along the axial direction of the foundation reinforcement, and the spacing between two adjacent ring electrodes ranges from 500mm to 800mm.

6. The concrete tower foundation according to claim 1, characterized in that, The inner concrete layer is made of steel fiber reinforced concrete, and the thickness of the inner concrete layer ranges from 800mm to 1300mm.

7. The concrete tower foundation according to claim 1, characterized in that, The conductive intermediate layer of the concrete foundation is made of carbon fiber concrete, and the thickness of the conductive intermediate layer of the concrete foundation ranges from 700mm to 1000mm.

8. The concrete tower foundation according to claim 1, characterized in that, The axes of the inner concrete layer, the conductive middle layer of the concrete foundation, and the outer concrete foundation all coincide with the axis of the foundation reinforcement.

9. The concrete tower foundation according to claim 1, characterized in that, It also includes anchor bolts set on the outer side of the outer layer of the concrete foundation. One end of the foundation reinforcement passes through the inner layer of concrete, the conductive middle layer of the concrete foundation and the outer layer of the concrete foundation in sequence, and extends out of the outer layer of the concrete foundation to connect with the anchor bolts.

10. The concrete tower foundation according to claim 1, characterized in that, The conductive middle layer of the concrete foundation is provided with a first main reinforcement bar, which is located outside the annular electrode. One end of the first main reinforcement bar passes through the conductive middle layer and the outer layer of the concrete foundation in sequence and extends to the outside of the outer layer of the concrete foundation. An anchor rod is sleeved on the end of the first main reinforcement bar that extends to the outside of the outer layer of the concrete foundation.

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