A municipal engineering side slope anchoring device

Abstract

The utility model discloses a municipal works is with side slope anchoring device, including anchor rod body and the anchor head fixed sleeve of sleeveing in the bottom end outside of anchor rod body, the anchor head fixed sleeve is fixedly connected through welding with anchor rod body, the bottom of anchor head fixed sleeve is provided with metal anchor head, and the metal anchor head round outer wall equidistance is provided with multiple groups of the anchor tooth that protrudes outward, the outer wall of anchor rod body adopts the setting of screw thread, through adding the initial riveting type reinforcing device in the anchor rod body, when the anchor rod body drills into the side slope, before grouting, after the elastic metal rivet strip is driven to pass through the grouting hole bottom end opening, the metal rivet strip restores automatically but the support is loose, through anticlockwise rotation rivet strip bending nut, pull the metal screw rod, make the elastic metal rivet strip from the bending groove place bending, embeds the rock-soil body and forms the mechanical occlusion structure, increases the contact area and friction force with rock-soil, effectively resists the pulling, shearing and other external force, prevents the anchor rod body displacement loose, significantly enhances the anchoring initial stability.

Description

Technical Field

[0001] This utility model belongs to the technical field of municipal engineering, specifically relating to a slope anchoring device for municipal engineering. Background Technology

[0002] In municipal engineering, slope anchoring is a key technical means to ensure slope stability and prevent geological disasters such as landslides. Traditional slope anchoring devices mainly rely on the synergistic effect of anchor bolts and grouting reinforcement. A metal anchor head is drilled into the slope, followed by the injection of grout. After the grout solidifies, a firm bond is achieved between the anchor bolt and the soil / rock. However, these devices still have some shortcomings in terms of stability in practical applications.

[0003] In the critical stage before grouting solidification, the anchor bolts rely solely on the anchor teeth on the metal anchor heads for initial fixation. Due to the lack of reliable auxiliary anchoring structures, they are highly susceptible to displacement or loosening caused by external forces such as construction vibrations and changes in slope soil stress. This leads to the anchor bolts deviating from their intended position, affecting subsequent grouting effectiveness and overall anchoring quality. Furthermore, traditional devices struggle to precisely adjust the anchoring force according to different geological conditions. In complex geological environments, insufficient or excessive anchoring often occurs, increasing construction costs and failing to effectively guarantee slope reinforcement results. Utility Model Content

[0004] The purpose of this utility model is to provide a slope anchoring device for municipal engineering, in order to solve the problems mentioned in the background art. Traditional slope anchoring devices rely solely on metal anchor heads and teeth for fixation before grouting solidification, lack auxiliary anchoring structures, are easily affected by external forces and become displaced and loose, causing the anchor rod to deviate from the predetermined position, affecting the grouting and anchoring quality; at the same time, it is difficult to accurately adjust the anchoring force according to different geological conditions.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a slope anchoring device for municipal engineering, comprising an anchor rod body and an anchor head fixing sleeve sleeved around the bottom end of the anchor rod body. The anchor head fixing sleeve is fixedly connected to the anchor rod body by welding. A metal anchor head is provided at the bottom end of the anchor head fixing sleeve, and multiple sets of outwardly protruding anchor teeth are equidistantly arranged on the circular outer wall of the metal anchor head. The outer wall of the anchor rod body is threaded. A grout outlet hole is provided inside the center of both the left and right ends of the metal anchor head. A grout injection hole is provided inside the anchor rod body, and the bottom end of the grout injection hole completely penetrates the metal anchor head. The grout injection hole communicates with the grout outlet hole. An initial riveting reinforcement device is inserted into the grout injection hole.

[0006] Preferably, the initial riveting reinforcement device includes an inlet ball head, elastic metal rivets, bending grooves, and a metal screw. The metal screw is inserted into the grouting hole, and the bottom end of the metal screw can completely pass through the bottom opening of the grouting hole. An inlet ball head is welded to the bottom end of the metal screw, and the inlet ball head is a hemispherical structure. Elastic metal rivets are welded to both sides of the center of the outer wall of the top of the inlet ball head, and bending grooves are provided on the inner side of the center of the two elastic metal rivets.

[0007] Preferably, the elastic metal rivet is set at an inclined angle on the outer wall of the top of the guide ball, and the top of the elastic metal rivet is inclined outward. The diameter of the metal screw is smaller than the diameter of the grouting hole, and the metal screw is a solid metal rod inside.

[0008] Preferably, the metal screw can be directly inserted from the top opening of the grouting hole, and during the process of the guide ball head driving the two elastic metal rivets to be inserted into the top opening of the grouting hole, the grouting hole can squeeze the two outwardly inclined elastic metal rivets inward by limiting its own diameter, so as to force the two elastic metal rivets to fit against the outer wall of the metal screw, and make the guide ball head smoothly drive the two elastic metal rivets to be inserted into the grouting hole.

[0009] Preferably, the downward movement of the guide ball head can directly drive the two elastic metal rivets to pass through the bottom opening of the grouting hole. After the two elastic metal rivets pass through the bottom opening of the grouting hole, they can automatically return to an inclined state through their own metal elasticity. After the two elastic metal rivets are in the unfolded state, the distance between the tops of the two elastic metal rivets is less than the outer diameter of the metal anchor head and greater than the diameter of the bottom opening of the grouting hole.

[0010] Preferably, the initial riveting reinforcement device further includes a rivet bar bending nut, which is threaded onto the outside of the top end of the metal screw. The rivet bar bending nut can rotate clockwise after the guide ball head drives the two elastic metal rivets through the bottom opening of the grouting hole. The clockwise rotation of the rivet bar bending nut can pull the metal screw upward through the blocking effect of the anchor body.

[0011] Preferably, during the upward pulling of the metal screw, the tops of the two elastic metal rivets can bend at the bending groove on the outer wall of the bottom of the metal anchor head, so that the two elastic metal rivets arch outward from the bending groove.

[0012] Preferably, a grout stop plug is sleeved on the upper outer side of the center of the anchor bolt body, a metal pad is provided above the grout stop plug, and an anchoring nut is provided above the metal pad.

[0013] Preferably, the metal pad is sleeved on the outside of the anchor rod body, and the metal pad can move up and down directly on the outside of the anchor rod body. The anchor nut is threaded on the outside of the anchor rod body, and the anchor nut can move up and down on the outside of the anchor rod body by rotating clockwise and counterclockwise through the thread action.

[0014] Compared with the prior art, this utility model provides a slope anchoring device for municipal engineering, which has the following beneficial effects:

[0015] This invention introduces a novel initial riveting reinforcement device into the anchor bolt body. During the critical stage before grouting begins, when the anchor bolt is drilled into the slope via the metal anchor head, the combination of the guide ball and the elastic metal rivet provides a foundation for subsequent anchoring. When the guide ball drives the elastic metal rivet through the bottom opening of the grouting hole, the rivet automatically recovers its elasticity and initially contacts the surrounding soil and rock. However, at this point, it only forms a loose support and is insufficient to withstand significant external forces. The true enhancement and stabilization effect of the anchoring force is achieved through the riveting process. The coordinated operation of the bent nut and the metal screw involves rotating the bent nut clockwise, which pulls the metal screw upward using the resistance of the anchor body. This forces the elastic metal rivet to bend outward from the bending groove, tightly embedding it into the soil and rock mass, forming a mechanical interlocking structure similar to a rivet. This structure significantly increases the contact area and friction between the elastic metal rivet and the soil and rock, effectively creating a stable anchor point within the slope. It can effectively resist external forces such as pull-out and shearing on the anchor body before grouting solidification, preventing displacement or loosening of the anchor body and greatly enhancing the stability in the initial stage of anchoring. Attached Figure Description

[0016] Figure 1 This is a side view three-dimensional structural diagram of a slope anchoring device for municipal engineering according to the present invention.

[0017] Figure 2 This is a front view schematic diagram of a slope anchoring device for municipal engineering according to the present invention.

[0018] Figure 3 This is a cross-sectional three-dimensional structural diagram of the slope anchoring device and the initial riveting reinforcement device of this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the initial riveting reinforcement device of this utility model.

[0020] In the diagram: 1. Initial riveting reinforcement device; 2. Metal anchor head; 3. Grout outlet hole; 4. Anchor head fixing sleeve; 5. Anchor rod body; 6. Grout stop plug; 7. Metal pad; 8. Anchor nut; 9. Grouting hole; 10. Inlet ball head; 11. Elastic metal rivet; 12. Bending groove; 13. Metal screw; 14. Rivet bending nut. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides, for example Figure 1-4 The illustrated slope anchoring device for municipal engineering includes an anchor rod body 5 and an anchor head fixing sleeve 4 sleeved on the outside of the bottom end of the anchor rod body 5. The anchor head fixing sleeve 4 is fixedly connected to the anchor rod body 5 by welding. A metal anchor head 2 is provided at the bottom end of the anchor head fixing sleeve 4, and multiple sets of outwardly protruding anchor teeth are equidistantly arranged on the circular outer wall of the metal anchor head 2. The outer wall of the anchor rod body 5 is threaded. A grout outlet hole 3 is provided inside the center of both ends of the metal anchor head 2. A grout injection hole 9 is provided inside the anchor rod body 5, and the bottom end of the grout injection hole 9 completely penetrates the metal anchor head 2. The grout injection hole 9 communicates with the grout outlet hole 3. A grout stop plug 6 is also sleeved on the upper outer side of the center of the anchor rod body 5. A metal pad 7 is provided above the grout stop plug 6, and an anchoring nut 8 is provided above the metal pad 7. The metal pad 7 is sleeved on the outside of the anchor rod body 5. Furthermore, the metal pad 7 can move up and down directly on the outside of the anchor rod body 5. The anchor nut 8 is threaded onto the outside of the anchor rod body 5. The anchor nut 8 can move up and down on the outside of the anchor rod body 5 by rotating clockwise and counterclockwise through the thread. The anchor rod body 5 is drilled into the slope through the metal anchor head 2 at the bottom. The outward protruding anchor teeth on the metal anchor head 2 increase the friction with the rock and soil, achieving initial fixation. The grouting hole 9 inside the anchor rod body 5 is connected to the grout outlet hole 3 at both ends of the metal anchor head 2. In the subsequent grouting operation, the grout flows out from the grout outlet hole 3 through the grouting hole 9, filling the gap between the anchor rod body 5 and the slope rock and soil. After the grout solidifies, it tightly bonds the anchor rod body 5 to the rock and soil. Relying on the tensile strength of the anchor rod body 5 and the bonding force of the grout, they jointly resist the sliding force of the slope soil, thereby achieving the purpose of reinforcing the slope.

[0023] like Figure 1 , Figure 3 and Figure 4As shown, an initial riveting reinforcement device 1 is inserted into the grouting hole 9. The initial riveting reinforcement device 1 includes an inlet ball head 10, elastic metal rivets 11, bending grooves 12, and a metal screw 13. The metal screw 13 is inserted into the grouting hole 9, and the bottom end of the metal screw 13 can completely pass through the bottom opening of the grouting hole 9. An inlet ball head 10 is welded to the bottom end of the metal screw 13, and the inlet ball head 10 has a hemispherical structure. Elastic metal rivets 11 are welded to both sides of the center of the outer wall of the top of the inlet ball head 10. Bending grooves 12 are provided on the inner side of the center of the two elastic metal rivets 11. The elastic metal rivets 11 are on the outer wall of the top of the inlet ball head 10. The metal screw 13 is set at an inclined angle, with the top of the elastic metal rivet 11 tilted outward. The diameter of the metal screw 13 is smaller than the diameter of the grouting hole 9, and the metal screw 13 is a solid metal rod inside. The metal screw 13 can be directly inserted from the top opening of the grouting hole 9. During the process of the guide ball head 10 driving the two elastic metal rivets 11 to be inserted into the top opening of the grouting hole 9, the grouting hole 9 can squeeze the two outwardly tilted elastic metal rivets 11 inward by limiting its own diameter, so as to force the two elastic metal rivets 11 to fit against the outer wall of the metal screw 13, and make the guide ball head 10 smoothly drive the two elastic metal rivets 11 to be inserted into the grouting hole 9.

[0024] like Figure 1 , Figure 3 and Figure 4As shown, the downward movement of the guide ball head 10 can directly drive the two elastic metal rivets 11 to pass through the bottom opening of the grouting hole 9. After the two elastic metal rivets 11 pass through the bottom opening of the grouting hole 9, they can automatically return to their tilted state due to their own metal elasticity. After the two elastic metal rivets 11 are in the unfolded state, the distance between the tops of the two elastic metal rivets 11 is less than the outer diameter of the metal anchor head 2 and greater than the diameter of the bottom opening of the grouting hole 9. The initial riveting reinforcement device 1 also includes a rivet bending nut 14, which is threaded onto the outside of the top of the metal screw 13. The rivet bending nut 14 can rotate clockwise after the guide ball head 10 drives the two elastic metal rivets 11 through the bottom opening of the grouting hole 9. The clockwise rotation of the rivet bending nut 14 can pull the metal screw 13 upward through the blocking effect of the anchor body 5. The initial riveting reinforcement device 1 utilizes the principle of mechanical deformation and friction enhancement. After the anchor body 5 is drilled into the slope, the grouting... Before grouting, the metal screw 13, along with the connected guide ball head 10 and elastic metal rivet 11, are inserted into the grouting hole 9. After the guide ball head 10 drives the elastic metal rivet 11 through the bottom opening of the grouting hole 9, the elastic metal rivet 11 automatically returns to its original position. However, this is only a preliminary contact state. By rotating the rivet bending nut 14 clockwise, the metal screw 13 is pulled upward under the obstruction of the anchor body 5, causing the elastic metal rivet 11 to bend outward from the bending groove 12, making it tightly embedded in the rock and soil. The bent elastic metal rivet 11 forms a large frictional force and mechanical interlocking force with the rock and soil, and is firmly fixed in the rock and soil like a rivet. Before the grout solidifies, it provides a reliable initial anchoring force for the anchor rod body 5, preventing the anchor rod body 5 from displacing or loosening due to external forces, and laying a stable foundation for subsequent grouting reinforcement. At the same time, by adjusting the rotation degree of the rivet bending nut 14, the bending angle of the elastic metal rivet 11 can be flexibly controlled, thereby adjusting the anchoring force to adapt to different geological conditions.

[0025] like Figure 1 , Figure 3 and Figure 4As shown, during the upward pulling of the metal screw 13, the tops of the two elastic metal rivets 11, which are blocked by the outer wall of the bottom of the metal anchor head 2, can bend from the bending groove 12, causing the two elastic metal rivets 11 to arch outward from the bending groove 12. The cooperation between the metal screw 13 and the rivet bending nut 14 also realizes the flexible adjustment of the anchoring force. Construction personnel can conveniently adjust the bending degree of the elastic metal rivets 11 according to different slope geological conditions, and accurately control the magnitude of the anchoring force. Compared with traditional anchoring devices, this significantly improves the adaptability of the device to complex geological environments. The initial riveting reinforcement device 1 has a simple and efficient operation process. The metal screw 13 can be directly inserted from the top opening of the grouting hole 9, and the elastic metal rivet 11 smoothly enters under the pressure of the grouting hole 9. No additional complicated installation tools and steps are required. This simple installation method greatly shortens the construction time, improves the construction efficiency, and reduces labor costs. At the same time, it reduces the construction errors that may be caused by complex installation, ensures the accuracy and reliability of the anchoring device installation, lays a solid foundation for subsequent grouting operations, and effectively improves the quality and safety of the entire slope anchoring project.

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, when installing and using this municipal engineering slope anchoring device, firstly, weld and fix the metal anchor head 2, anchor head fixing sleeve 4, and anchor rod body 5 together. Then, sequentially attach the grout stop plug 6 and metal pad 7 to the anchor rod body 5, and screw on the anchoring nut 8 to complete the assembly of the slope anchoring device. Next, use specialized equipment to drill the assembled anchor rod body 5 into the slope to a predetermined depth through the metal anchor head 2. Use the anchor teeth on the metal anchor head 2 to achieve initial fixation. Insert the metal screw 13 of the initial riveting reinforcement device 1 into the grouting hole 9 of the anchor rod body 5, so that the guide ball 10... The elastic metal rivet 11 is driven to pass through the bottom opening of the grouting hole 9. After the elastic metal rivet 11 returns to its original position, the rivet bending nut 14 is rotated clockwise, and the metal screw 13 is pulled to bend the elastic metal rivet 11 and embed it into the rock and soil, completing the initial anchoring. Then, grout is injected into the slope through the grouting hole 9. The grout flows out through the grout outlet 3 and fills the gap between the anchor body 5 and the rock and soil. After the grout solidifies, the anchoring nut 8 is adjusted according to actual needs to further tighten the anchor body 5. Then, the anchoring area of ​​the slope is cured to ensure the stability of the reinforcement effect.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A slope anchoring device for municipal engineering, comprising an anchor rod body (5) and an anchor head fixing sleeve (4) sleeved on the outside of the bottom end of the anchor rod body (5), wherein the anchor head fixing sleeve (4) is fixedly connected to the anchor rod body (5) by welding, and a metal anchor head (2) is provided at the bottom end of the anchor head fixing sleeve (4), and the outer wall of the metal anchor head (2) is provided with multiple sets of outwardly protruding anchor teeth at equal intervals, and the outer wall of the anchor rod body (5) is threaded, characterized in that: The metal anchor head (2) has grout outlet holes (3) at the center of both ends. The anchor body (5) has grout injection holes (9) inside, and the bottom end of the grout injection hole (9) completely penetrates the metal anchor head (2). The grout injection hole (9) is connected to the grout outlet hole (3). An initial riveting reinforcement device (1) is inserted into the grout injection hole (9). The initial riveting reinforcement device (1) includes an inlet ball head (10), an elastic metal rivet (11), a bending groove (12), and a metal screw (13). The metal screw (13) is inserted into the grouting hole (9), and the bottom end of the metal screw (13) can completely pass through the bottom opening of the grouting hole (9). The bottom end of the metal screw (13) is welded with an inlet ball head (10), and the inlet ball head (10) is a hemispherical structure. Elastic metal rivets (11) are welded on both sides of the center of the outer wall of the top of the inlet ball head (10). A bending groove (12) is provided on the inner side of the center of the two elastic metal rivets (11).

2. The slope anchoring device for municipal engineering according to claim 1, characterized in that: The elastic metal rivet (11) is set at an inclined angle on the outer wall of the top of the guide ball (10), and the top of the elastic metal rivet (11) is inclined outward. The diameter of the metal screw (13) is smaller than the diameter of the grouting hole (9), and the metal screw (13) is a solid metal rod inside.

3. The slope anchoring device for municipal engineering according to claim 2, characterized in that: The metal screw (13) can be directly inserted from the top opening of the grouting hole (9). During the process of the guide ball head (10) driving the two elastic metal rivets (11) to be inserted into the top opening of the grouting hole (9), the grouting hole (9) can squeeze the two outwardly inclined elastic metal rivets (11) inward by limiting its own diameter, so as to force the two elastic metal rivets (11) to fit against the outer wall of the metal screw (13) and make the guide ball head (10) smoothly drive the two elastic metal rivets (11) to be inserted into the grouting hole (9).

4. A slope anchoring device for municipal engineering according to claim 3, characterized in that: The downward movement of the inlet ball head (10) can directly drive the two elastic metal rivets (11) to pass through the bottom opening of the grouting hole (9). After the two elastic metal rivets (11) pass through the bottom opening of the grouting hole (9), the two elastic metal rivets (11) can automatically return to the inclined state through their own metal elasticity. After the two elastic metal rivets (11) are in the unfolded state, the distance between the tops of the two elastic metal rivets (11) is less than the outer diameter of the metal anchor head (2) and greater than the bottom opening diameter of the grouting hole (9).

5. A slope anchoring device for municipal engineering according to claim 4, characterized in that: The initial riveting reinforcement device (1) also includes a rivet bar bending nut (14), which is threaded onto the outside of the top end of the metal screw (13). The rivet bar bending nut (14) can rotate clockwise after the guide ball head (10) drives the two elastic metal rivets (11) through the bottom opening of the grouting hole (9). The clockwise rotation of the rivet bar bending nut (14) can pull the metal screw (13) upward through the blocking effect of the anchor body (5).

6. A slope anchoring device for municipal engineering according to claim 5, characterized in that: As the metal screw (13) is pulled upward, the tops of the two elastic metal rivets (11) block the outer wall of the bottom end of the metal anchor head (2) and bend from the bending groove (12) so that the two elastic metal rivets (11) arch outward from the bending groove (12).

7. A slope anchoring device for municipal engineering according to claim 1, characterized in that: An anchor bolt body (5) is fitted with a grout stop plug (6) on the upper outer side of its center. A metal pad (7) is provided above the grout stop plug (6), and an anchoring nut (8) is provided above the metal pad (7).

8. A slope anchoring device for municipal engineering according to claim 7, characterized in that: The metal pad (7) is sleeved on the outside of the anchor rod body (5), and the metal pad (7) can move up and down directly on the outside of the anchor rod body (5). The anchor nut (8) is threaded on the outside of the anchor rod body (5), and the anchor nut (8) can move up and down on the outside of the anchor rod body (5) by rotating clockwise and counterclockwise through the thread.

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