Barb type self-locking anchoring device and using method thereof

Abstract

The invention discloses a barb type self-locking anchoring device which comprises a barb type anchor nail, the barb type anchor nail is connected with an anchor disc through a steel wire rope, at least one group of symmetrically arranged barbs are hinged to the barb type anchor nail, the barb type anchor nail is located in a side slope soil body, the anchor disc is located on the surface of a soil slope, and the barb type anchor nail is connected with the anchor disc through a steel wire rope. The barbs on the barb type anchor nails are opened in the soil body through upward tensioning of the steel wire rope, and the internal soil body counter force is transmitted to the anchor disc on the surface of the soil slope. Compared with traditional soil nails and anchor rods, the scheme is simple in process, large professional equipment is not needed, professional teams are not needed, and one common worker can conduct driving and tensioning; compared with U-shaped nails and the like for slope material protection, the anchor nails of the device go deep into a soil body, controllable early-stage pretension is provided for the slope through tensioning, the slope material is pressed by the anchor disc, more effective slope anchoring force can be provided, and therefore the problem that the shallow surface layer of the soil slope slides, which cannot be solved by the steel bar nails and the U-shaped nails, is solved.

Description

Technical Field

[0001] The invention relates to the technical field of civil engineering, and in particular to a barbed self-locking anchoring device and a use method thereof. Background Art

[0002] In existing civil engineering projects, three-dimensional vegetation nets, reinforced pads and other mesh materials are widely used as protective materials for slope surfaces. Such materials are usually fixed with steel nails and U-shaped nails, which can prevent surface scouring and soil erosion. However, such materials are only mesh structures, and steel nails and U-shaped nails only fix them close to the slope, but cannot play an anchoring role and cannot solve the problem of slope sliding. If it is necessary to significantly improve the stability of the shallow surface of such slopes, it is necessary to drive in engineering soil nails or anchor rods. The construction of soil nails and anchor rods involves complex processes such as drilling, grouting, and tensioning, and requires various equipment such as scaffolding, drilling rigs, grouting machines, and tensioning cylinders. It requires a professional team to construct. For slopes that have been naturally sloped and are overall stable, it is not economical or convenient to only improve the shallow stability of the slope. Summary of the invention

[0003] In view of this, the purpose of the present invention is to provide a slope anchoring device that can be manually driven into the soil or pressed into the soil with the assistance of an excavator and can be constructed without complicated procedures, equipment and professional teams. A barbed self-locking anchoring device and a method of using the same are proposed.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A barbed self-locking anchor device comprises a barbed anchor, wherein the barbed anchor is connected to an anchor plate via a steel wire rope, at least one group of symmetrically arranged barbs are hingedly connected to the barbed anchor, the barbed anchor is located in the soil of a slope, and the anchor plate is located on the surface of the slope. The steel wire rope is pulled upward so that the barbs on the barbed anchor are opened in the soil, thereby transmitting the internal soil reaction force to the anchor plate on the surface of the slope.

[0005] As a further improvement of the above technical solution: As an optimization solution of the above technical solution, the barbed anchor comprises a coupling rod and barbs symmetrically hingedly arranged on the coupling rod, and the upper end of the coupling rod is connected to the wire rope.

[0006] As an optimization solution of the above technical solution, a cap tip is provided at the lower end of the connecting rod.

[0007] As an optimization solution of the above technical solution, the barb includes a barbed wing body hinged to the connecting rod, and a barbed arc wing surface arranged at the other end of the barbed wing body, and the opening of the barbed arc wing surface faces the anchor plate.

[0008] As an optimization solution of the above technical solution, a placement groove is provided on the connecting rod, the barbed wing body is hinged in the placement groove, and the two barbed wing bodies can be placed in the placement groove, and the arc of the barbed arc wing surface is in contact with the outer edge of the connecting rod.

[0009] As an optimization solution of the above technical solution, the top end of the barbed arc wing surface is provided with an outward-turned barbed wing tip, and the outward-turned barbed wing tip does not fit the connecting rod.

[0010] As an optimization solution of the above technical solution, a wire rope locking assembly is provided on the anchor plate to lock and fix the wire rope after the wire rope is tensioned.

[0011] As an optimization solution of the above technical solution, the wire rope locking assembly includes a locking box body fixedly arranged on the anchor plate, the locking box body is provided with a wire rope hole and a fixed inclined groove, the lower end of the fixed inclined groove is communicated with the lower end of the wire rope hole, the lower end of the fixed inclined groove is provided with a ball, the upper end is provided with an elastomer, and the top end is provided with a cover plate.

[0012] As an optimization scheme of the above technical scheme, it also includes a reading ratchet tensioner assembly, the reading ratchet tensioner assembly includes a tensioner bracket, a wire rope guide shaft is arranged on the tensioner bracket for transverse rotation, a wire rope winding shaft is arranged for vertical rotation, a rotating ratchet is arranged on the upper end of the wire rope winding shaft, a wire rope fixing hole is arranged in the middle position of the wire rope winding shaft, and a ratchet stopper is rotatably and resettably arranged on the upper end of the tensioner bracket through a stopper shaft and a stopper spring, and the end of the ratchet stopper is in contact with the rotating ratchet.

[0013] The present invention also provides a method for using a barbed self-locking anchoring device, comprising the following steps: Step 1. Put the wire rope through the hole at the upper end of the barbed anchor and fix it with a wire rope buckle. Use a hammer, electric hammer or electric pick to hammer the barb anchor into the slope soil. If conditions permit, an excavator can also be used to press it in. Step 2. After the barbed anchor nail enters the designed depth, pull out the punch rod, and then pass the wire rope exposed on the slope through the anchor plate placed on the slope, the wire rope hole on the locking box, the wire rope guide shaft, and the wire rope fixing hole in sequence, and fix the tensioner bracket on the anchor plate; Step 3. Use a torque wrench to rotate the ratchet. The ratchet and the ratchet positioner can cooperate to achieve non-return one-way tensioning. The rotating wire rope winding shaft winds the wire rope to tighten the wire rope, pulling the barbs in the soil to open. After opening, the barbed anchor will be subjected to a greater reaction force from the soil, forming an anchoring effect. Step 4. The radius of the wire rope wound on the wire rope winding shaft is read from the scale on the wire rope guide shaft on the ratchet tensioner. The real-time tensioning force value can be obtained by looking up the table through the conversion relationship between the torque wrench reading and the winding radius. When the pre-tensioning force reaches a certain design value in the early stage, the tensioning is stopped. Step 5. After the tensioning stops, the wire rope naturally retracts under the action of the soil and its own elasticity, which will drive the ball in the locking box of the anchor plate to roll. The ball in the locking box will move towards the wire rope due to the setting of the fixed inclined groove of the locking box, thereby locking the wire rope and achieving self-locking under the given tension conditions; Step 6. Cut the wire rope, take out the tensioner bracket, and complete the slope anchoring.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Compared with traditional soil nails and anchor rods, this invention has simple procedures, does not require large-scale professional equipment, and does not require a professional team. The driving and tensioning can be done by an ordinary worker alone; 2. Compared with U-shaped nails used for slope material protection, the anchor nails of this device penetrate deep into the soil, and provide controllable pre-tension for the slope surface through tensioning, so that the anchor plate presses the slope material tightly, which can provide more effective slope anchoring force, thereby solving the problem of shallow surface sliding of the soil slope that cannot be solved by steel nails and U-shaped nails; 3. The present invention provides a self-locking device for a steel wire rope, which can self-lock when stretched to a suitable tension, without manual locking, and is easy to operate. At the same time, after the steel wire rope is self-locked by the locking box, the previous pre-tension will be maintained, thereby tightening the anchor plate, and the anchor plate will press the slope protection material tightly, achieving the effect of force transmission from point to surface; 4. The present invention also provides a corresponding ratchet tensioner with readable data, which is convenient for tensioning the wire rope. At the same time, a ratchet method is adopted to prevent rotation during the tensioning process and ensure the tensioning efficiency. At the same time, a scale is provided on the wire rope guide shaft. The initial pre-tension value can be obtained by reading the scale and the torque wrench. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure after the anchoring of the present invention is completed; Figure 2 It is a schematic diagram of the three-dimensional structure of the barbed anchor of the present invention in an open state; Figure 3 It is a schematic diagram of the three-dimensional structure of the barbed anchor nail of the present invention in a closed state; Figure 4 It is a schematic diagram of the three-dimensional structure of the self-locking anchor disc of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the locking box body of the present invention; Figure 6It is a schematic diagram of the cross-sectional structure of the locking box body of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the readable ratchet tensioner of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure during the installation process of the present invention.

[0016] Reference numerals: 1. Barbed anchor; 11. Coupling rod; 12. Barb; 121. Barbed wing body; 122. Barbed arc wing surface; 123. Outward-turned barbed wing tip; 13. Placement slot; 14. Cap tip; 2. Wire rope; 3. Anchor plate; 31. Locking box; 32. Wire rope hole; 33. Fixed chute; 34. Ball bearing; 35. Elastic body; 36. Cover plate; 4. Readable ratchet tensioner; 41. Tensioner bracket; 42. Wire rope guide shaft; 43. Wire rope winding shaft; 44. Rotating ratchet; 45. Wire rope fixing hole; 46. Ratchet positioner. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] The technical solution discloses a barbed self-locking anchor device for shallow soil reinforcement, which mainly includes three parts: 1. a barbed anchor 1; 2. a self-locking anchor plate 3; 3. a ratchet tensioner 4 with readable data; As attached Figure 1 As shown, it is a structural diagram of a barbed anchor 1, and its specific structure is as follows: The barbed anchor 1 is composed of a cap tip 14, barbs 12 and a coupling rod 11. The barbs 12 are symmetrically arranged in pairs on the left and right sides of the coupling rod 11 and connected to the coupling rod 11 through an axle pin. Although there is only one pair in the attached figure, the corresponding barbs 12 can be quantitatively increased as needed. The main purpose of increasing the barbs 12 is to increase the tension. Therefore, the increased pairs of barbs 12 should be distributed at a certain angle to each other when viewed from above, and should not overlap as much as possible. At the same time, a through placement groove 13 is provided on the coupling rod 11. When the barb 12 is driven into the soil, it is retracted and parallel to the coupling rod 11 in the vertical direction. When tensioning, the soil squeezes the outward-turned barb wing tip 123 of the barb 12, so that the barb 12 is unfolded inside the soil, and the barb-type anchor nail 1 forms an anchor shape. Therefore, in order to meet this function, the barb 12 includes three parts: One is a barbed wing 121 that is rotatably arranged in the coupling rod 11 through an axle pin, and at the same time, the length of the barbed wing 121 should correspond to the placement slot 13, so that it can be completely placed in the closed state, and the barbed wing 121 of the two barbs 12 should be staggered, so that both barbed wing 121 can be placed. The barbed wing 121 is placed in the coupling rod 11, which can reduce the penetration resistance when the barb-type anchor 1 is driven in, and can also reduce the side resistance when the barbs 12 are opened; Two barbed arc wing surfaces 122 connected to the ends of the barbed wing bodies 121. When the barbs 12 are in a vertical state, the barbed arc wing surfaces 122 can fit with the outer edge of the connecting rod 11. The reason for setting the arc shape is to fit with the connecting rod 11, which can reduce the soil resistance during driving. After opening, the arc surface contacts the soil and can provide a greater reaction force; The third one is an outward-turned barbed wing tip 123 arranged at the end of the barbed arc wing surface 122. When the barb 12 is in a closed state, the outward-turned barbed wing tip 123 faces outward and does not fit with the connecting rod 11. This design is to prevent the barbed arc wing surface 122 from being unable to open due to excessive tight fit during tensioning. The existence of the outward-turned barbed wing tip 123 provides an area that contacts and is squeezed with the soil during tensioning, thereby ensuring that the barb 12 can be opened.

[0021] A thread is provided at the lower end of the coupling rod 11, and a cap tip 14 is connected via the thread. The main purpose of the cap tip 14 is to reduce resistance when driving into the soil and prevent mud and sand from squeezing the barb 12 pin connection part.

[0022] As attached Figure 2 As shown in FIG. 1 , it is a structural diagram of a self-locking anchor disc 3, which is connected to a barbed anchor nail 1 through a steel wire rope 2. The specific structure of the self-locking anchor disc 3 is as follows: It is mainly composed of an anchor plate 3, a locking box body 31 (the locking box body 31 includes a box body, a ball 34, an elastic body 35 and a cover plate 36). The locking box body 31 is processed with 4 fixing screw holes, 2 ball 34 holes, 1 inclined groove, 321 wire rope holes and 1 cover plate groove. The ball 34 and the elastic body 35 are placed in the inclined groove, and the cover plate 36 is placed in the cover plate groove to encapsulate the ball 34 and the elastic body 35. The elastic body 35 can be made of elastic materials such as sponge or rubber.

[0023] The locking box body 31 is connected to the anchor plate 3 by four screws, and a wire rope hole 32 and a fixing inclined groove 33 which are interconnected are provided in the locking box.

[0024] When the steel wire rope 2 is tensioned outward, when the steel wire rope 2 passes through the steel wire rope hole 32 of the locking box body 31 toward the outside of the slope, it drives the ball 34 to move toward the upper part of the fixed inclined groove 33, and the ball 34 will not squeeze the steel wire rope 2. After the tensioning is completed, when the steel wire rope 2 rebounds under the action of the soil and its own elasticity, it drives the ball 34 to move toward the lower part of the inclined groove, and the ball 34 will squeeze the steel wire rope 2, thereby locking the steel wire rope 2 to achieve the purpose of self-locking.

[0025] The setting of the elastic body 35 ensures that the ball 34 can contact the wire rope 2 at any time, so that it can be driven by the wire rope to move in the same direction; after the wire rope 2 is self-locked by the locking box, the previous pre-tension will be maintained, thereby tightening the anchor plate 3, and the anchor plate 3 will press the slope protection material to achieve the effect of force transmission from point to surface.

[0026] At the same time, it can be seen from the accompanying drawings that the shape of the anchor plate 3 is circular, and the locking box body 31 is located at the center of the circle. However, the anchor plate 3 can be square or special-shaped. However, in order to ensure the uniformity of the force on the anchor plate 3, the locking box body 31 must be located at a point that can make the surrounding force uniform.

[0027] Meanwhile, the anchor plate 3 and the locking box body 31 are combined, but the anchor plate 3 and the locking box body 31 of the present technical solution may also be integrated, that is, the locking box and the anchor plate 3 are integrally cast without assembly, and are equipped with a ball 34, an elastic body 35 and a cover plate 36.

[0028] As attached Figure 3 As shown, a ratchet tensioner 4 with a readable number (one of the ways to tension the steel wire rope 2, and the related components that can also tension the steel wire rope 2 are simple replacements of the technical solution), and its specific structure is: The readable ratchet tensioner 4 comprises a tensioner bracket 41, a wire rope winding shaft 43, a rotating ratchet 44, a wire rope guide shaft 42, a ratchet positioner 46, a positioner shaft, a positioner limit pin, and a positioner spring.

[0029] The tensioner bracket 41 is the main structure, and various parts are installed on the bracket through openings. At the same time, a handle is provided on the bracket for easy operation. The tensioner bracket 41 is provided with a slot corresponding to the anchor plate 3 to facilitate positioning during tensioning.

[0030] A wire rope guide shaft 42 is arranged on the tensioner bracket 41 for horizontal rotation, and a wire rope winding shaft 43 is arranged for vertical rotation. A rotating ratchet 44 is arranged at the upper end of the wire rope winding shaft 43, and a corresponding wire rope fixing hole 45 is arranged in the middle position of the wire rope winding shaft 43. The wire rope winding shaft 43 and the rotating ratchet 44 are arranged as a concentric integrated shaft structure. The ratchet positioner 46 is arranged on the upper end of the tensioner bracket 41 through the ratchet positioner 46 shaft, the positioner limit pin and the positioner spring, and the end of the ratchet positioner 46 is in contact with the rotating ratchet 44.

[0031] Before tensioning, the steel wire rope 2 passes through the self-locking anchor plate 3, turns horizontally on the steel wire rope guide shaft 42, and then passes through the steel wire rope fixing hole 45. During tensioning, the torque wrench acts to rotate the upper end of the ratchet 44, and the steel wire rope winding shaft 43 rotates, winding the steel wire rope 2 so as to tighten the steel wire rope 2, causing the barbed anchor 1 to open inside the soil and the steel wire rope 2 to generate prestress. When the torque wrench is not acting, the positioner acts on the ratchet to prevent the ratchet shaft from rotating, thereby ensuring the tensioning efficiency.

[0032] At the same time, the wire rope guide shaft 42 is provided with a scale or an external scale, and the initial pre-tensioning force can be obtained through the scale reading and the torque wrench reading.

[0033] From the above, it can be seen that the present technical solution provides a structure that uses a ratchet method to tension the steel wire rope 2 and can quantitatively control the initial pre-tensioning force. Other similar solutions that can meet the requirements should also be simple replacements for the present technical solution.

[0034] As attached Figure 4 and Figure 5 As shown, it is a structural diagram of the use process of this technical solution, and the specific steps are: Step 1: Put the wire rope 2 through the hole at the upper end of the coupling rod 11 and fix it with a wire rope buckle. Use a hammer, electric hammer or electric pick (the same type of tools can be used) to manually drive the barbed anchor 1 into the slope soil with a punch. If conditions permit, an excavator can also be used to press it in. Step 2: After the coupling rod 11 enters the designed depth, the punch rod is pulled out, and the wire rope 2 exposed on the slope is sequentially passed through the anchor plate 3 placed on the slope, the wire rope hole 32 on the locking box body 31, the wire rope guide shaft 42, and the wire rope fixing hole 45, and the tensioner bracket 41 is fixedly set on the anchor plate 3; Step 3, the ratchet 44 is rotated by a torque wrench, and the ratchet 44 cooperates with the ratchet positioner 46 to realize non-return type one-way tensioning, and the rotating wire rope winding shaft 43 is wound around the wire rope 2 to tighten the wire rope 2, and the barbs 12 in the pulling soil are opened. After the barbs are opened, the barbed anchor 1 will be subjected to a greater reaction force from the soil, which is transmitted to the anchor plate 3 set on the surface through the wire rope 2 to form an anchoring effect; Step 4: The radius of the wire rope 2 wound around the wire rope winding shaft 43 is read out through the scale on the wire rope guide shaft 42 on the ratchet tensioner. The real-time tensioning force value can be obtained by looking up the table through the conversion relationship between the torque wrench reading and the winding radius. When the pre-tensioning force exceeds a certain design value in the early stage, the tensioning is stopped; Step 5: After the tensioning stops, the steel wire rope 2 naturally retracts under the action of the soil and its own elasticity, which drives the ball 34 in the locking box of the anchor plate 3 to roll. The ball 34 in the locking box moves toward the direction close to the steel wire rope 2 due to the setting of the inclined groove of the locking box, thereby producing a locking effect on the steel wire rope 2, thereby achieving self-locking under a given tension condition; Step 6: Cut the steel wire rope 2, take out the tensioner bracket 41, and complete the slope anchoring.

[0035] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A barbed self-locking anchoring device, characterized in that: The invention comprises a barbed anchor (1), wherein the barbed anchor (1) is connected to an anchor plate (3) via a steel wire (2), and at least one group of symmetrically arranged barbs (12) is hingedly connected to the barbed anchor (1). The barbed anchor (1) is located in the soil of the slope, and the anchor plate (3) is located on the surface of the slope. The barbs (12) on the barbed anchor (1) are stretched in the soil by pulling the steel wire (2) upward, so that the reaction force of the internal soil is transmitted to the anchor plate (3) on the surface of the slope.

2. The barbed self-locking anchor device according to claim 1, characterized in that: The barbed anchor (1) comprises a coupling rod (11) and barbs (12) symmetrically hingedly arranged on the coupling rod (11); the upper end of the coupling rod (11) is connected to a steel wire rope (2).

3. The barbed self-locking anchor device according to claim 2, characterized in that: The lower end of the connecting rod (11) is provided with a cap tip (14).

4. The barbed self-locking anchor device according to claim 2, characterized in that: The barb (12) comprises a barbed wing body (121) hinged to the connecting rod (11), and a barbed circular arc wing surface (122) arranged at the other end of the barbed wing body (121), wherein the opening of the barbed circular arc wing surface (122) faces the anchor plate (3).

5. The barbed self-locking anchor device according to claim 4, characterized in that: The coupling rod (11) is provided with a placement groove (13), the barbed wing body (121) is hinged in the placement groove (13), and the two barbed wing bodies (121) can be placed in the placement groove (13) when closed, and the arc of the barbed arc wing surface (122) fits the outer edge of the coupling rod (11).

6. The barbed self-locking anchor device according to claim 4, characterized in that: An outward-turned barbed wing tip (123) is provided at the top end of the barbed arc wing surface (122), and the outward-turned barbed wing tip (123) does not fit the connecting rod (11).

7. The barbed self-locking anchor device according to claim 1, characterized in that: The anchor plate (3) is provided with a wire rope locking assembly, which is used to lock and fix the wire rope (2) after the wire rope (2) is tensioned.

8. The barbed self-locking anchor device according to claim 7, characterized in that: The wire rope locking assembly comprises a locking box body (31) fixedly arranged on the anchor plate (3), wherein a wire rope hole (32) and a fixed inclined groove (33) are arranged in the locking box body (31), the lower end of the fixed inclined groove (33) is communicated with the lower end of the wire rope hole (32), a ball (34) is arranged at the lower end of the fixed inclined groove (33), an elastic body (35) is arranged at the upper end, and a cover plate (36) is arranged at the top end.

9. The barbed self-locking anchor device according to claim 8, characterized in that: It also includes a ratchet tensioner (4) with a readability, the ratchet tensioner (4) with a readability including a tensioner bracket (41), a wire rope guide shaft (42) being arranged on the tensioner bracket (41) for transverse rotation, and a wire rope winding shaft (43) being arranged for vertical rotation, a rotating ratchet (44) being arranged at the upper end of the wire rope winding shaft (43), a wire rope fixing hole (45) being arranged at the middle position of the wire rope winding shaft (43), and a ratchet stopper (46) being arranged at the upper end of the tensioner bracket (41) for rotation and reset through a stopper shaft and a stopper spring, the end of the ratchet stopper (46) being in contact with the rotating ratchet (44).

10. A method for using the barbed self-locking anchor device according to claim 9, characterized in that: The following steps are involved: Step 1. A wire rope (2) is passed through the hole at the upper end of the barbed anchor (1) and fixed with a wire rope buckle. The barbed anchor (1) is driven into the slope soil by hammering a punch rod using any one of a hammer, an electric hammer or an electric pick. When conditions permit, an excavator can also be used to press it in. Step 2, after the barbed anchor (1) enters the designed depth, the punch is pulled out, and the steel wire rope (2) exposed on the soil surface is passed through the anchor plate (3) placed on the slope, the steel wire rope hole (32) on the locking box (31), the steel wire rope guide shaft (42), and the steel wire rope fixing hole (45) in sequence, and the tensioner bracket (41) is fixedly set on the anchor plate (3); Step 3, the ratchet wheel (44) is rotated by a torque wrench. The ratchet wheel (44) cooperates with the ratchet stopper (46) to realize non-returnable one-way tensioning. The rotating wire rope winding shaft (43) winds the wire rope (2) to tighten the wire rope (2), and the barbs (12) in the soil are pulled to open. After the barbs (12) are opened, the barbed anchor (1) is subjected to a greater reaction force from the soil, which is transmitted to the anchor plate (3) through the wire rope (2), thereby forming an anchoring effect acting on the surface of the soil slope. Step 4, the radius of the wire rope (2) wound around the wire rope winding shaft (43) is read out through the scale on the wire rope guide shaft (42) on the ratchet tensioner, and the real-time tensioning force value can be obtained by looking up the table through the conversion relationship between the torque wrench reading and the winding radius. When the pre-tensioning force reaches the design value in the early stage, the tensioning is stopped; Step 5. After the tensioning stops, the steel wire rope (2) naturally retracts under the action of the soil and its own elasticity, which drives the ball (34) in the locking box of the anchor plate (3) to roll. Due to the setting of the locking box fixed inclined groove (33), the ball (34) in the locking box moves in a direction close to the steel wire rope (2), thereby generating a locking effect on the steel wire rope (2), thereby achieving self-locking under a given tension condition; Step 6: Cut the steel wire rope (2), remove the tensioner bracket (41), and complete the slope anchoring.

Images