A combined plate type ground anchor

Abstract

The present invention relates to a combined plate type ground anchor, which comprises one or more ground anchor modules. Each ground anchor module includes a horizontally lying triangular column frame. The longitudinal section of the triangular column frame is an isosceles triangle. Panels are installed on the frame end faces where the two waists of the isosceles triangle are located. Pull rings are distributed on both of the two panels. Docking mechanisms are provided on the triangular end faces on both sides of the triangular column frame. Adjacent ground anchor modules can be connected to each other through the docking mechanisms. Compared with the prior art, the ground anchor of the present invention has more reasonable force, can provide a large number of anchoring points when used jointly, has advantages such as reducing the excavation amount and being flexible in use. In particular, the overall anti-load capacity can be improved when used jointly.

Description

Technical Field

[0001] The present invention relates to the field of transmission line construction in the power system's power transmission and transformation project, and particularly to a combined plate type ground anchor. Background Art

[0002] In the field construction of transmission lines, ground anchors are essential stress-bearing tools, and among them, the plate type ground anchor composed of welding combinations such as angle steel and steel plates is the most commonly used ground anchor structure. The plate type ground anchor with a traditional structure has large stress, is easy to transport and store, but still has the following deficiencies:

[0003] 1) The stress direction of the ground anchor needs to be adjusted manually, which is prone to adverse changes during backfilling and is prone to relaxation after stress application.

[0004] 2) When two plate type ground anchors are buried adjacent to each other, in order to avoid the disturbance of loose soil, a sufficient distance needs to be left. For example, for three-phase six-split single-circuit tension stringing, the tension field requires 50 - 60 ground anchors, and a large site is required to meet the requirements. Moreover, under the terrain limitations and the requirements of green construction, the site is generally not large, and it is very difficult to bury the required number of ground anchors. Summary of the Invention

[0005] The purpose of the present invention is to overcome the defects of the above-mentioned existing technologies and provide a combined plate type ground anchor.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A combined plate type ground anchor includes one or more ground anchor modules. Each ground anchor module includes a horizontally lying triangular column frame. The longitudinal section of the triangular column frame is an isosceles triangle. Panels are installed on the frame end faces where the two waists of the isosceles triangle are located. Pull rings are distributed on both panels. Docking mechanisms are provided on the triangular end faces on both sides of the triangular column frame, and adjacent ground anchor modules can be connected to each other through the docking mechanisms.

[0008] Further, the docking mechanism includes a plug pin and a docking pipe. The plug pin is arranged on the triangular end face on one side of the triangular column frame, and the docking pipe is arranged on the triangular end face on the other side of the triangular column frame. When adjacent ground anchor modules are connected to each other, the plug pin of one ground anchor module is inserted into the docking pipe of the other ground anchor module.

[0009] Further, the plug pins are distributed at the three corners of the corresponding triangular end face, and the docking pipes are correspondingly distributed at the three corners of the corresponding triangular end face.

[0010] Further, a first fixing hole is provided at the end of the plug pin, and a second fixing hole is provided at the tail of the docking pipe. When the plug pin is inserted into the docking pipe, the positions of the first fixing hole and the second fixing hole overlap, and they are fixed by passing a fixing pin through the first fixing hole and the second fixing hole.

[0011] Further, the triangular prism frame includes two isosceles triangle frames and three connecting rods. The two ends of each connecting rod are respectively welded to the corresponding corner ends of the two isosceles triangle frames.

[0012] Further, the triangular prism frame includes a plurality of reinforcing triangle frames. Each reinforcing triangle frame is arranged parallel to the isosceles triangle frame, and the corner ends of the reinforcing triangle frames are respectively welded to the three connecting rods.

[0013] Further, the pull rings are arranged at the positions of the reinforcing triangle frames. Each pull ring passes through the panel and is welded to the reinforcing triangle frame.

[0014] Further, an inverted triangle frame composed of reinforcing ribs is arranged inside the two isosceles triangle frames, and the corner ends of the two inverted triangle frames are connected to each other by a horizontal rod.

[0015] Further, the longitudinal section of the triangular prism frame is an isosceles right triangle.

[0016] Further, a plurality of pull rings are horizontally arranged in a line on the panel.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention designs the plate anchor into a horizontal isosceles triangular prism shape, and a plurality of pull rings can be distributed on the two waist surfaces to provide a plurality of anchoring points. Compared with the original plate anchor with only one anchoring point, the structure is more reasonable; at the same time, the stress surface of the plate anchor of the present invention is more reasonable. After the two side panels with an inclination angle are placed at the bottom of the pit, the stress retaining surface naturally forms a stress angle, and no cavity will be formed after backfilling the soil, and it is not easy to loosen.

[0019] 2. The present invention can be used in combination with multiple anchor modules. After connecting the anchor modules to each other, a large combined anchor can be formed. When in use, only a single large anchor pit needs to be excavated in the tensioning site, thus solving the problem that each anchor in the traditional method needs to excavate an anchor pit, and the distance between the anchor pits is very large, occupying a large space; at the same time, the use of the combined anchor has little influence on the original soil and the overall stress condition is better.

[0020] 3. The docking mechanism of the present invention adopts a plug and a docking pipe, which can ensure that the anchor modules are connected to each other to form a whole, and the structure is simple; when the plug and the docking pipe are arranged at the three corners of the triangular end face, it can ensure that the stress states of the anchor modules are also the same as each other, with good integrity and ensuring the stability of the anchor.

[0021] 4. Structures such as reinforcing triangle frames and inverted triangle frames can be arranged in the triangular prism frame to improve the strength of the frame. Description of the Drawings

[0022] Figure 1 This is a schematic structural diagram of the present invention.

[0023] Figure 2 This is a schematic structural diagram of a single ground anchor module.

[0024] Figure 3 This is a front view schematic diagram of the ground anchor module.

[0025] Figure 4 This is a schematic structural diagram of the docking mechanism.

[0026] Figure 5 This is a schematic structural diagram of the pull ring connecting the rope.

[0027] Figure 6 This is a schematic structural diagram of the unidirectional use state of the present invention.

[0028] Figure 7 This is a schematic structural diagram of the bidirectional use state of the present invention.

[0029] Reference numerals: 1, triangular column frame; 11, isosceles triangle frame; 12, connecting rod; 13, reinforcing triangle frame; 14, inverted triangle frame; 15, horizontal rod; 2, panel; 3, pull ring; 4, docking mechanism; 41, bolt; 41a, first fixing hole; 42, docking pipe; 42a, second fixing hole; 43, fixing pin. Detailed Description of the Invention

[0030] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention, and the detailed implementation manners and specific operation processes are given, but the protection scope of the present invention is not limited to the following embodiments.

[0031] As Figure 1 shown, this embodiment discloses a combined plate-type ground anchor, which can be composed of a single ground anchor module alone, or multiple ground anchor modules with the same structure can be combined and spliced to form a large ground anchor.

[0032] As Figure 2 shown, each ground anchor module includes a triangular column frame 1, a panel 2, a pull ring 3 and a docking mechanism 4. The triangular column frame 1 is horizontally arranged, and its longitudinal cross-section is an isosceles triangle. The panel 2 is made of steel plate, and two panels 2 are respectively installed on the frame end faces where the two waists of the isosceles triangle are located. A plurality of pull rings 3 are horizontally arranged in a row on the panel 2 for connecting ropes. Thus, in this embodiment, only the pull rings 3 on one side can be connected to the ropes for unidirectional use, as Figure 5 shown; or the pull rings 3 on both sides can be connected to the ropes for bidirectional use, as Figure 6As shown in the figure, multiple anchoring points are set on an earth anchor module. The ground of the triangular column frame 1 is not covered with steel plates, which is convenient for matching with the uneven bottom of the pit. The design of the triangular column frame 1 as an isosceles triangle can enable the earth anchor to directly form the best stress angle after being placed at the bottom of the pit. The pulled rope will not form a cavity after backfilling the soil and is not easy to loosen under stress. To ensure the stress angle, the base angle of the isosceles triangle is generally 30 to 60 degrees. In this embodiment, 45 degrees is preferably adopted, that is, the longitudinal cross-section of the triangular column frame 1 is a right-angled isosceles triangle.

[0033] In this embodiment, the triangular column frame 1 includes two isosceles triangle frames 11, three connecting rods 12, a reinforcing triangular frame 13, and an inverted triangular frame 14. The main structure of the triangular column frame 1 is composed of two isosceles triangle frames 11 and three connecting rods 12. The two ends of each connecting rod 12 are respectively welded to the corresponding corner ends of the two isosceles triangle frames 11. Four reinforcing triangular frames 13 are distributed between the two isosceles triangle frames 11, and their shapes are the same as those of the isosceles triangle frames 11. The reinforcing triangular frames 13 are parallel and equidistantly spaced from the isosceles triangle frames 11. The corner ends of the reinforcing triangular frames 13 are respectively welded to the three connecting rods 12, playing a role in strengthening the structural stability. The number of inverted triangular frames 14 is two, and each inverted triangular frame 14 is composed of three reinforcing ribs. The inverted triangular frames 14 are arranged inside the isosceles triangle frames 11, and the corner ends of the two inverted triangular frames 14 are connected to each other through a horizontal rod 15. The setting of the inverted triangular frames 14 further improves the strength of the structure.

[0034] In this embodiment, the number of pull rings 3 on each panel 2 is the same as the number of reinforcing triangular frames 13 and their positions correspond, that is, there are four pull rings 3 on each side surface, and there are a total of eight pull rings 3 on both sides. To improve the stress strength of the pull rings 3, the pull rings 3 can pass through the panel 2 and be welded to the frame edges of the corresponding reinforcing triangular frames 13.

[0035] The docking mechanism 4 is arranged on the triangular end faces on both sides of the triangular column frame 1. Adjacent earth anchor modules can be connected to each other through the docking mechanism 4. The specific structure of the docking mechanism 4 is as follows:

[0036] As Figure 3 and Figure 4As shown in the figure, the docking mechanism 4 includes a bolt 41 and a docking pipe 42. The bolts 41 are distributed at the three corners of the isosceles triangle frame 11 on one side, and the docking pipes 42 are correspondingly distributed at the three corners of the isosceles triangle frame 11 on the other side. When two adjacent ground anchor modules are connected to each other, the bolt 41 of one ground anchor module is inserted into the docking pipe 42 of the other ground anchor module. A first fixing hole 41a is provided at the end of each bolt 41, and a second fixing hole 42a is provided at the tail of the docking pipe 42. After the bolt 41 is inserted into the docking pipe 42, the positions of the first fixing hole 41a and the second fixing hole 42a overlap, and they are fixed by passing a fixing pin 43 through the first fixing hole 41a and the second fixing hole 42a, so as to ensure the firm connection of the two ground anchor modules.

[0037] The specific use process of this embodiment is as follows:

[0038] a) Plan the tensioning site and lay out the ground anchor pits.

[0039] b) Use an excavator to dig ground anchor pits with a certain width, depth and length.

[0040] c) Lay multiple required ground anchor modules flat on the ground with two right-angled faces facing up. After inserting and connecting adjacent two ground anchor modules, position and fix them with fixing pins.

[0041] d) Connect a shackle and a steel wire rope to the pull ring, as Figure 7 shown.

[0042] e) Use a crane to lift the connected ground anchor to the bottom of the pit.

[0043] f) Excavate and adjust the ramp. After placing the steel wire rope in the corresponding position, temporarily fix the other end at the corresponding position on the ground.

[0044] g) Use an excavator to backfill the soil, tamp it and make anti-settlement and waterproof measures.

[0045] h) Use after acceptance.

[0046] i) When using several times, it takes a process for the steel wire rope to be stressed to a reasonable position. After being fully stressed, the ramp and the anti-settlement layer need to be re-tamped.

[0047] j) After use, remove the stressed devices, and only keep the steel wire rope and the shackle of the ground anchor.

[0048] k) Use an excavator to excavate the anti-settlement layer and the backfill soil below until it is about 100 - 300 mm above the ground anchor, and use a crane to lift the ground anchor to the ground.

[0049] l) Remove the steel wire rope and the connecting fixing pins, and recycle them respectively.

[0050] In summary, this embodiment has the following advantages:

[0051] 1) The structure is more reasonable. One ground anchor can provide up to 8 anchoring points, while the original structure can only provide one anchoring point.

[0052] 2) The stress-bearing surface is more reasonable. After being placed at the bottom of the pit, the stress-bearing soil-retaining surface naturally forms an arrangement at 45° with the ground. The stress-bearing soil-retaining surface of the original structure is parallel to the ground. After being stressed, it faces the direction with greater resistance, but it is uncontrollable and an air cavity is likely to form at the rear end, which will cause the backfill soil to loosen and subside after rain.

[0053] 3) The combined use is more reasonable in terms of force. Excavating the same number of single ground anchor pits in the tensioning site will cause serious disturbance to the original soil. By using the combined use in this embodiment, the influence on the original soil is small and the overall stress condition is better.

[0054] 4) It is more suitable for mechanized rapid operation, improving work efficiency and reducing excavation and land occupation.

[0055] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art shall fall within the protection scope determined by the claims.

Claims

1. A combined plate-type ground anchor, characterized in that, It includes one or more ground anchor modules. Each ground anchor module includes a horizontal triangular column frame (1). The longitudinal section of the triangular column frame (1) is an isosceles triangle. Panels (2) are installed on the frame end faces where the two waists of the isosceles triangle are located. Pull rings (3) are distributed on both panels (2). Docking mechanisms (4) are provided on the triangular end faces on both sides of the triangular column frame (1). Adjacent ground anchor modules can be connected to each other through the docking mechanisms (4). The docking mechanism (4) includes a plug pin (41) and a docking pipe (42). The plug pin (41) is arranged on the triangular end face on one side of the triangular column frame (1), and the docking pipe (42) is arranged on the triangular end face on the other side of the triangular column frame (1). When adjacent ground anchor modules are connected, the plug pin (41) of one ground anchor module is inserted into and connected to the docking pipe (42) of another ground anchor module. The triangular column frame (1) includes two isosceles triangle frames (11) and three connecting rods (12). The two ends of each connecting rod (12) are respectively welded to the corresponding corner ends of the two isosceles triangle frames (11).

2. The combined plate type ground anchor according to claim 1, characterized in that, The plug pins (41) are distributed at the three corners of the triangular end face where they are located, and the docking pipes (42) are correspondingly distributed at the three corners of the triangular end face where they are located.

3. The combined plate type ground anchor according to claim 1, characterized in that, The end of the plug pin (41) is provided with a first fixing hole (41a), and the tail of the docking pipe (42) is provided with a second fixing hole (42a). After the plug pin (41) is inserted into the docking pipe (42), the positions of the first fixing hole (41a) and the second fixing hole (42a) overlap, and they are fixed by passing a fixing pin (43) through the first fixing hole (41a) and the second fixing hole (42a).

4. The combined plate ground anchor according to claim 1, characterized in that, The triangular column frame (1) includes a plurality of reinforcing triangular frames (13). Each reinforcing triangular frame (13) is arranged parallel to the isosceles triangle frame (11), and the corner ends of the reinforcing triangular frame (13) are respectively welded to the three connecting rods (12).

5. The combined plate ground anchor according to claim 4, characterized in that, The pull rings (3) are arranged at the positions where the reinforcing triangular frames (13) are distributed. Each pull ring (3) passes through the panel (2) and is welded to the reinforcing triangular frame (13).

6. The combined plate type ground anchor according to claim 1, characterized in that, Inside the two isosceles triangle frames (11), there are inverted triangular frames (14) composed of reinforcing ribs. The corner ends of the two inverted triangular frames (14) are connected to each other through a horizontal rod (15).

7. A combined plate-type ground anchor according to claim 1, characterized in that, The longitudinal section of the triangular column frame (1) is an isosceles right triangle.

8. A combined plate type ground anchor according to claim 1, characterized in that, A plurality of pull rings (3) are horizontally arranged in a line on the panel (2).

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