Power transmission line iron tower foundation suitable for goaf geology

Abstract

The utility model discloses a power transmission line iron tower foundation suitable for goaf geology, and relates to the technical field of power transmission and transformation project construction. Comprising a foundation body, a plurality of jacking screws are arranged on the peripheral side of the foundation body, the tops of the jacking screws are in threaded connection with upper nuts and lower nuts, jacking plates are arranged between the upper nuts and the lower nuts, and the jacking plates are arranged on the jacking screws in a penetrating mode; the jacking plate is arranged on the upper portion of the upper surface of the foundation body. The mechanical lifting device is adopted, the jack is used for assisting jacking, operation is easy, cost is low, the height of the high-voltage transmission line foundation can be flexibly adjusted, the adjusting space is large, the structure is not prone to being damaged, and application and popularization are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of power transmission and transformation engineering construction, in particular to a power transmission line iron tower foundation suitable for goaf area geology. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] In areas where resources such as coal and ore are mined, uneven settlement of tower foundations is often caused by geological collapse, which may lead to abnormalities such as damage and deformation of tower components, posing risks to the safe operation of transmission lines.

[0004] The Chinese utility model patent with publication number CN204151813U and titled "An adjustable foundation for correcting the settlement of a transmission tower foundation" discloses that the tower foundation height can be adjusted by directly adjusting the anchor bolts, but the adjustment space is limited, the actual operation is difficult, and the bolts are easily damaged. The Chinese utility model patent with publication number CN203668964U and titled "Adjustable foundation for transmission line tower" discloses that the foundation height can be adjusted by the principle of a hydraulic piston.

[0005] The inventors have found that in the above-mentioned prior art, directly using anchor bolts for adjustment can easily damage the quality of the foundation entity; using a hydraulic system to adjust the foundation is expensive and has unsatisfactory economic benefits. Utility Model Content

[0006] The purpose of the utility model is to provide a transmission line tower foundation suitable for goaf geology, which adopts a mechanical lifting device and uses a jack to assist in lifting. The operation is simple and the cost is low. The foundation height of the high-voltage transmission line can be flexibly adjusted, the adjustment space is large, the structure is not easily damaged, and it is conducive to promotion and application, thereby solving the problems in the prior art.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model is a power transmission line tower foundation suitable for goaf geology, comprising a foundation body, a plurality of jacking screws are arranged on the periphery of the foundation body, an upper nut and a lower nut are threadedly connected at the top of the jacking screw, a jacking plate is arranged between the upper nut and the lower nut, the jacking plate is penetrated on the jacking screw; the jacking plate is arranged on the upper part of the upper surface of the foundation body.

[0009] As an optional technical solution, the foundation body is made of concrete, and steel bars are arranged in the foundation body.

[0010] As an optional technical solution, the jacking screw rods are evenly arranged along the circumference of the base body, an anchor plate is arranged at the bottom of the jacking screw rod, and a rib plate is connected between the anchor plate and the jacking screw rod.

[0011] As an optional technical solution, the lifting screw includes a bolt rod portion and a threaded portion, the threaded portion is arranged on the upper part of the bolt rod portion, and the upper nut and the lower nut are rotatably connected to the respective threaded portions.

[0012] As an optional technical solution, the thread of the threaded part adopts trapezoidal thread; the lifting plate as a whole and the position with trapezoidal thread on the lifting screw are galvanized; the threaded part is provided with a protective surface layer, and a lubricating grease layer is provided on the protective surface layer.

[0013] As an optional technical solution, gaskets are provided between the upper nut and the lifting plate, and between the lower nut and the lifting plate.

[0014] As an optional technical solution, a plurality of anchor bolts are arranged in the foundation body, and one end of the anchor bolt passes through the upper part of the jacking plate.

[0015] As an optional technical solution, a jack is further provided at the lower part of the jacking plate, and the jack is used to raise the height of the jacking plate.

[0016] As an optional technical solution, a pad is provided between the jacking plate and the basic body.

[0017] As an optional technical solution, the jacking plate is a reinforced plate with holes and ribs.

[0018] The utility model has the following beneficial effects:

[0019] 1. The utility model discloses a transmission line tower foundation suitable for goaf geology. A plurality of jacking screws are arranged on the periphery of the foundation body. The top of the jacking screw is threadedly connected with an upper nut and a lower nut. A jacking plate is arranged between the upper nut and the lower nut, and the jacking plate is penetrated on the jacking screw. The position of the upper nut and the lower nut can be used to limit the jacking plate. When the foundation body sinks, the limit of the jacking plate is released by adjusting the position of the upper nut, and then the height of the jacking plate is lifted by a jack. After the jacking is in place, a pad is inserted between the subsided foundation body and the repositioned jacking plate to strengthen the force of the jacking plate, and the upper nut position is repositioned, and the lower nut position is moved to limit the jacking plate again at the new position. The utility model facilitates the height adjustment of the jacking plate, and the adjustment method is convenient, which is convenient for coping with the situation after the foundation body sinks and the height changes.

[0020] 2. The utility model does not adopt the solution of directly using anchor bolts to adjust the height of the tower foundation in the prior art, but adopts a mechanical lifting device, uses a jack to assist the jacking plate to perform the jacking operation, changes the height of the jacking plate, and inserts a pad between the foundation body and the jacking plate. The foundation body can still play a good supporting role. The utility model is simple to operate, low in cost, can achieve the overall adjustment of the foundation height of the high-voltage transmission line, and is conducive to promotion and application.

[0021] 3. The technical solution adopted by the utility model is that the lifting bolts are distributed around the foundation, and the height adjustment process has high stability, avoiding the shortcomings of the traditional method of using the foundation body bolts that are easy to be damaged and the high cost of the hydraulic lifting device.

[0022] 4. The utility model lifting screw includes a bolt rod part and a threaded part. The threaded part adopts a trapezoidal thread, which has strong pressure bearing capacity. The lifting plate as a whole and the position with the trapezoidal thread on the lifting screw are galvanized. The threaded part is provided with a protective surface layer, and a lubricating grease layer is provided on the protective surface layer to achieve the functions of lubrication and rust prevention.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a front view schematic diagram of the overall structure of the utility model.

[0026] Figure 2 It is a schematic top view of the overall structure of the utility model.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1 foundation body, 2 lifting screw, 3 upper nut, 4 lower nut, 5 lifting plate, 6 steel bar, 7 anchor plate, 8 rib plate, 9 bolt rod part, 10 threaded part, 11 gasket. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Embodiment 1:

[0031] As mentioned above, in the mining areas of resources such as coal and ore, uneven settlement of the iron tower foundation is often caused by geological collapse, which may cause abnormalities such as damage and deformation of the iron tower components, bringing risks to the safe operation of the transmission line. This embodiment provides a transmission line iron tower foundation suitable for the geology of the mining area, which is an adjustable foundation type. The height of the iron tower foundation can be adjusted in time according to the on-site measurement situation to ensure the physical quality of the transmission line foundation, and effectively solve the safety hazards caused by the uneven settlement of the iron tower foundation to the operation of the power line.

[0032] The utility model adopts a mechanical lifting device, uses a jack to assist in lifting, adopts a high-pressure trapezoidal threaded screw, is reasonably arranged on the traditional iron tower foundation, and is equipped with a convenient working space. The jack is used to assist in operation, improves the efficiency of foundation adjustment, is simple to operate, and has low cost. It can adjust the foundation height of high-voltage transmission lines and is conducive to promotion and application. It can be applied to the construction of power transmission line foundations in goaf areas and other settlement areas, and can adjust the height of the settlement iron tower foundation in real time, avoiding the risks brought by the settlement of the iron tower foundation, ensuring the physical quality of the transmission line, and the application effect is remarkable.

[0033] See also Figure 1 As shown, this embodiment is a power transmission line tower foundation suitable for goaf geology, including a foundation body 1, a plurality of lifting screws 2 are arranged on the periphery of the foundation body 1, the top of the lifting screw 2 is threadedly connected with an upper nut 3 and a lower nut 4, a lifting plate 5 is arranged between the upper nut 3 and the lower nut 4, and the lifting plate 5 is passed through the lifting screw 2; the lifting plate 5 is arranged on the upper surface of the foundation body 1.

[0034] like Figure 1 and Figure 2 As shown, the number of the lifting screws 2 is set to 4, and the 4 lifting screws 2 are evenly arranged on the side of the basic body 1, specifically, at four diagonal positions of the basic body 1, so that the basic body 1 is located at the bottom center position of the entire lifting plate 5, which is convenient for using the basic body 1 to bear weight.

[0035] The foundation body 1 is made of concrete material, which is a square reinforced concrete. The foundation body 1 is provided with steel bars 6 to improve the load-bearing performance of the foundation body 1. A plurality of anchor bolts are provided in the foundation body 1, and one end of the anchor bolt passes through the upper part of the jacking plate 5. Holes are reserved on the jacking plate 5, and the anchor bolts pass through the holes. It can be understood that the jacking plate 5 is a reinforced plate with holes and ribs processed according to the design size.

[0036] In order to improve the installation stability of the jacking screw 2, an anchor plate 7 is provided at the bottom of the jacking screw 2, and a rib plate 8 is connected between the anchor plate 7 and the jacking screw 2, so that the connection stability of the jacking screw 2 can be strengthened and it is not easy to shake.

[0037] The lifting screw rod 2 includes a bolt rod portion 9 and a threaded portion 10, wherein the threaded portion 10 is disposed on the upper portion of the bolt rod portion 9, and the upper nut 3 and the lower nut 4 are rotatably connected to the threaded portion 10. In this embodiment, the trapezoidal thread is located at the bolt rod head, and the lowest point thereof is about 200 mm from the lower surface of the lifting plate 5. In this embodiment, a plurality of lifting screws 2 are arranged on the periphery of the basic body 1, and the lifting screws 2 are threadedly connected with an upper nut 3 and a lower nut 4, and a lifting plate 5 is arranged between the upper nut 3 and the lower nut 4, and the lifting plate 5 is penetrated on the lifting screws 2, and the positions of the upper nut 3 and the lower nut 4 can be used to limit the lifting plate 5; when the basic body 1 sinks, the limit on the lifting plate 5 is released by adjusting the position of the upper nut 3, and then the height of the lifting plate 5 is lifted by a jack, and after the lifting is in place, a pad is inserted between the sunken basic body 1 and the repositioned lifting plate 5 to strengthen the force on the lifting plate 5, and the upper nut 3 is positioned again, and the lower nut 4 is moved to limit the lifting plate 5 at the new position again.

[0038] In order to improve the pressure-bearing capacity of the threaded part 10, the thread of the threaded part 10 adopts trapezoidal thread; the lifting plate 5 as a whole and the position with trapezoidal thread on the lifting screw 2 are galvanized, and the threaded part 10 is provided with a protective surface layer, and a lubricating grease layer is provided on the protective surface layer, which can play a role in lubrication and rust prevention.

[0039] Gaskets 11 are provided between the upper nut 3 and the lifting plate 5 , and between the lower nut 4 and the lifting plate 5 .

[0040] When the lifting operation is implemented, a jack is set at the lower part of the lifting plate 5, and the height of the lifting plate 5 is lifted by the jack. Specifically, in order to facilitate the concentration of force, the jack can be set on the peripheral side of the lifting plate 5 close to the basic body 1 to lift the lifting plate 5. After the lifting is completed, a height difference is generated between the lifting plate 5 and the basic body 1. In order to compensate for the height difference and facilitate the load-bearing function of the basic body 1, a pad is set between the lifting plate 5 and the basic body 1. The pad can be a galvanized pad, which is inserted into the gap between the lifting plate 5 and the basic body 1 to complete the load-bearing of the lifting plate 5.

[0041] The jacking bolts of the device are distributed around the foundation, and the jacking operation is convenient and stable, avoiding the shortcomings of the traditional method of using the foundation body 1 bolts that are easy to be damaged and the high cost of the hydraulic jacking device.

[0042] In general, this embodiment includes two parts: a jacking device and a reinforced concrete foundation entity:

[0043] The jacking screw 2 is a cylindrical screw with a trapezoidal thread on the head, which is welded with a fixed anchor plate 7 of a certain size, and is a jacking device composed of a jacking plate 5, a double nut and a double gasket 11;

[0044] The reinforced concrete foundation entity, in addition to the traditional iron tower foundation square column, is equipped with jacking bolts to fix the concrete casting body. According to the design calculation, the casting height is not less than 1 meter.

[0045] When making this embodiment:

[0046] The first step is to manufacture the jacking device according to the design drawings. The entire jacking plate 5 and all positions of the entire jacking screw 2 with trapezoidal threads are galvanized; the threaded part 10 is lubricated with grease and rust-proof, and surface protection is provided.

[0047] The second step is to install the jacking device 3 days after the casting of the square column foundation body 1 of the iron tower is completed, and adjust the installation position so that the jacking plate 5 is closely combined with the top surface of the foundation.

[0048] The third step is to pour concrete into the lower part of the lifting screw 2 to the designed elevation. After the concrete is cured for 28 days and the strength is measured to meet the standard, the height to be lifted for the 4 transmission line foundations is measured and the lifting operation is carried out using the lifting device.

[0049] In this embodiment, when adjusting the height:

[0050] First, screw the upper nut 3 above the jacking plate 5 to a predetermined height to release the limit on the jacking plate 5; then use 4 sets of finished (electric) jacks to assist the operation, lift the jacking plate 5 to a predetermined height, fill the gap between the jacking plate 5 and the four sides with galvanized pads, and then remove the jacks; finally, tighten the upper nut 3 at the top, and then tighten the lower nut 4 at the bottom to the designed torque, and re-limit the jacking plate 5.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0052] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A transmission line tower foundation suitable for goaf geology, characterized in that: It includes a basic body, a plurality of lifting screws are arranged on the circumference of the basic body, the tops of the lifting screws are threadedly connected with upper nuts and lower nuts, a lifting plate is arranged between the upper nuts and the lower nuts, and the lifting plate is passed through the lifting screws; the lifting plate is arranged on the upper part of the upper surface of the basic body.

2. The power transmission line tower foundation suitable for goaf geology according to claim 1, characterized in that: The basic body is made of concrete material, and steel bars are arranged in the basic body.

3. The power transmission line tower foundation suitable for goaf geology according to claim 1, characterized in that: The jacking screw rods are evenly arranged along the circumference of the base body, an anchor plate is arranged at the bottom of the jacking screw rod, and a rib plate is connected between the anchor plate and the jacking screw rod.

4. The power transmission line tower foundation suitable for goaf geology according to claim 1, characterized in that: The lifting screw rod comprises a bolt rod portion and a threaded portion, wherein the threaded portion is arranged on the upper portion of the bolt rod portion, and the upper nut and the lower nut are rotatably connected to the respective threaded portions.

5. The power transmission line tower foundation suitable for goaf geology according to claim 4, characterized in that: The threads of the threaded part are trapezoidal threads; the entire lifting plate and the positions with trapezoidal threads on the lifting screw are galvanized; the threaded part is provided with a protective surface layer, and a lubricating grease layer is provided on the protective surface layer.

6. The power transmission line tower foundation suitable for goaf geology according to claim 1, characterized in that: Gaskets are arranged between the upper nut and the lifting plate, and between the lower nut and the lifting plate.

7. The power transmission line tower foundation suitable for goaf geology according to claim 1, characterized in that: A plurality of anchor bolts are arranged in the foundation body, and one end of the anchor bolt passes through the upper part of the jacking plate.

8. The power transmission line tower foundation suitable for goaf geology according to claim 1, characterized in that: A jack is also provided at the lower part of the jacking plate, and the jack is used to raise the height of the jacking plate.

9. The power transmission line tower foundation suitable for goaf geology according to claim 8, characterized in that: A pad is arranged between the jacking plate and the basic body.

10. The power transmission line tower foundation suitable for goaf geology according to claim 1, characterized in that: The jacking plate is a reinforced plate with holes and ribs.

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