Supporting structure for landslide emergency treatment and use method thereof

Abstract

The application provides a supporting structure for landslide emergency treatment and a use method, and belongs to the technical field of landslide emergency treatment. The supporting structure comprises an anchor rod, a connecting mechanism is arranged on the anchor rod, the connecting mechanism comprises hollowed-out discs one, two and three which are fixedly sleeved on the anchor rod, the diameters of the hollowed-out discs one, two and three are sequentially reduced, a plurality of connecting rings are fixedly sleeved on the anchor rod, and grooves are arranged on the anchor rod corresponding to the connecting rings. The hollowed-out discs one, two and three and the connecting rings are fixedly sleeved on the anchor rod, the contact area of the anchor rod and the grouting body is increased through the hollowed-out discs one, two and three and the connecting rings, the connecting strength of the anchor rod and the grouting body is improved, the pull-out resistance of the anchor rod is increased, and therefore the support of the side slope is more stable and reliable.

Description

Technical Field

[0001] This invention relates to the field of landslide emergency treatment technology, and in particular to a support structure and its application method for landslide emergency treatment. Background Technology

[0002] For emergency landslide control on soil slopes, a combined support structure of anchor bolts and grid beams is often used to prevent landslides. The anchoring force of the anchor bolts and the overall constraint of the grid structure limit the displacement of the sliding body. The construction is relatively quick and is the mainstream method for emergency landslide rescue. The anchor bolts are usually made of threaded steel. After drilling holes in the slope, the anchor bolts are inserted into the holes and grout is injected. After the grout solidifies, the grid beams can be constructed to achieve emergency control of the landslide.

[0003] In landslide emergency treatment, anchor rods are usually made of threaded steel. They rely on the simple thread structure on the surface of the threaded steel to connect with the grout. The bonding area between the anchor rod and the grout is small and the friction is weak. The pull-out resistance of the anchor rod needs to be improved. Therefore, this application provides a support structure and usage method for landslide emergency treatment to meet the requirements. Summary of the Invention

[0004] This invention provides a support structure and method for emergency landslide control to address the problem of insufficient pull-out resistance of anchor bolts.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A support structure and method for emergency landslide control includes an anchor rod, on which a connecting mechanism is provided. The connecting mechanism includes a hollowed-out disc one, a hollowed-out disc two, and a hollowed-out disc three fixedly sleeved on the anchor rod. The diameters of the hollowed-out disc one, the hollowed-out disc two, and the hollowed-out disc three decrease sequentially. Multiple sets of connecting rings are also fixedly sleeved on the anchor rod, and grooves are provided on the anchor rod corresponding to the connecting rings. During operation, the anchor rod is inserted into the hole. The perforated disc one, perforated disc two, perforated disc three, and connecting ring are used to increase the contact area between the anchor rod and the grouting body.

[0006] Preferably, the outer walls of both the second and third hollowed-out discs are fixed with multiple positioning strips, which are used to guide the anchor rod when it is inserted into the hole.

[0007] Preferably, the positioning strip includes a vertical part 1 fixed to the outer wall of the first and second hollowed-out discs, and an arc-shaped part 1 is fixed to the end of the vertical part 1 away from the anchor rod.

[0008] Preferably, the hollow disc is provided with an expansion component, which includes a movable strip. The outer wall of the hollow disc is provided with a guide groove. The movable strip includes a vertical part two that is slidably connected in the guide groove. The end of the vertical part two away from the anchor rod is fixed with an arc-shaped part two. Both the vertical part two and the arc-shaped part two are elliptical. The anchor rod is provided with a circular groove at one end corresponding to the hollow disc. A guide rod is slidably connected in the circular groove. A spring is fixed at one end of the guide rod, and a disc is fixed at the other end. The spring is installed in the circular groove. A connecting rod is rotatably connected to the side of the disc near the anchor rod. A sliding groove is provided on the side of the hollow disc. The end of the connecting rod away from the disc passes through the sliding groove and is rotatably connected to the vertical part two. After the anchor rod is inserted into the hole, the disc rests against the deepest part of the hole. Pressing the anchor rod causes the movable strip to open and insert into the soil in the hole.

[0009] Preferably, two ribs are fixed on the arc-shaped part two, and one end of the ribs near the hollowed-out plate two is fixed on the vertical part two.

[0010] Preferably, the rib is inclined and has a cutting groove, the distance between two cutting grooves is greater than the length of the two minor axes of the arc-shaped part, and the inner wall of the cutting groove has an inclined surface on the side near the anchor rod.

[0011] Preferably, a connecting block is fixed at the middle position of the inner wall of the blade groove.

[0012] Preferably, the arc-shaped part two and the side of the rib are jointly fixed with multiple rib plates, and the side of the rib plate away from the anchor rod has an integrally formed protrusion, and the side of the protrusion away from the anchor rod has a V-shaped surface.

[0013] Preferably, a through groove is provided on the side of the protrusion, an inclined plate is fixed on the side of the protrusion corresponding to the position of the through groove, and a rib is fixed between the inclined plate and the protrusion.

[0014] A method for using a landslide emergency treatment support structure, applied to the aforementioned landslide emergency treatment support structure, includes the following steps: S1: Drill holes on the slope and insert anchor rods into the holes. Positioning strips and movable strips are used to guide the anchor rods when they are inserted into the holes. S2: Press the anchor rod to open the expansion assembly, and the movable strip, protrusion and inclined plate are all inserted into the soil at the inner wall of the hole; S3: Grout is injected into the hole, and the grout is wrapped around the anchor rod.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: In the above scheme, by setting up hollowed-out disc one, hollowed-out disc two, hollowed-out disc three, and connecting rings, all of which are fixedly fitted onto the anchor rod, the contact area between the anchor rod and the grouting body is increased through the hollowed-out disc one, hollowed-out disc two, hollowed-out disc three, and connecting rings. This improves the connection strength between the anchor rod and the grouting body, increases the pull-out resistance of the anchor rod, and thus makes the slope support more stable and reliable. At the same time, the diameters of hollowed-out disc one, hollowed-out disc two, and hollowed-out disc three decrease sequentially, with hollowed-out disc one corresponding to the bottom of the hole and hollowed-out disc three corresponding to the opening of the hole. This design reduces the flow resistance of the grout during grouting, allowing the grout to fully contact the anchor rod, laying the foundation for a stable and reliable connection between the grouting body and the anchor rod.

[0016] By setting positioning strips, which are fixed to the outer walls of the second and third perforated discs, the arc-shaped part of the positioning strip guides the anchor rod during insertion into the hole, preventing the end of the anchor rod from hitting the inner wall of the hole, facilitating the insertion of the anchor rod, and ensuring that the anchor rod is centered in the hole after insertion, thus laying a reliable foundation for the anchor rod's pull-out resistance and subsequent construction.

[0017] By setting up a disc and a movable strip, during the insertion of the anchor rod into the hole, the arc-shaped part two on the movable strip also plays a guiding role in the insertion of the anchor rod. After the anchor rod is inserted, it plays a positioning role. At the same time, after the anchor rod is inserted, the disc is pressed against the deepest part of the hole wall. Under the action of the connecting rod, the movable strip moves along the inner wall of the guide groove of the hollow disc, so that the arc-shaped part two is inserted into the soil of the hole wall, increasing the connection strength between the anchor rod and the hole. At the same time, the grout can enter the concave area of ​​the compression point where the arc-shaped part two is inserted into the soil, improving the connection strength between the grout and the hole wall, and further improving the pull-out resistance of the anchor rod.

[0018] By setting ribs, the structural strength of the second arc-shaped part on the movable strip is improved, and the second arc-shaped part is prevented from deforming under stress.

[0019] By setting a cutting groove on the rib, the cutting groove cuts the soil in the compression area of ​​the arc section two as the rib moves with the arc section two, reducing the soil compaction of the side wall of the depression area formed by the compression of the arc section two, making it easier for the grout to penetrate into the soil, further improving the connection strength between the grout body and the inner wall of the hole, thereby further improving the pull-out resistance of the anchor rod.

[0020] By setting up an inclined plane, when the cutting groove cuts the soil, the soil is guided by the inclined plane to slide down to the two arc-shaped parts, preventing the soil from falling back to the side wall of the depression area and ensuring that the slurry stably penetrates to the side wall of the depression area.

[0021] By setting a connecting block, which is fixed in the middle of the inner wall of the cutting groove, the structural strength of the corresponding cutting groove area on the rib can be improved, so that the cutting groove can be prevented from deforming even if it encounters small stones in the soil, thus ensuring that the cutting groove can stably perform its function.

[0022] By setting ribs, the ribs are used to improve the deformation resistance of the ribs under stress, ensure the stable cutting of the soil by the cutting groove, and further prevent the arc-shaped part from deforming under stress.

[0023] By setting protrusions and V-shaped surfaces, when the second arc-shaped part squeezes the soil, the protrusions on the ribs are driven to insert into the soil simultaneously, which further improves the connection strength between the second arc-shaped part and the soil inside the hole. The protrusions have V-shaped surfaces, which can reduce the resistance of the protrusions when inserting into the soil, thus making it easier for the protrusions to be inserted into the soil.

[0024] By setting up a through groove and an inclined plate, the through groove is opened on the side of the protrusion. When the protrusion is inserted into the soil, the inclined plate simultaneously squeezes the soil. When the grout is injected into the hole, the grout enters between the inclined plate and the protrusion and can then enter the through groove along the inclined plate and seep into the surrounding soil from the through groove, thereby further improving the connection strength between the grout and the soil, thus greatly improving the pull-out resistance of the anchor rod. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a three-dimensional structural diagram of a hollowed-out disc of the present invention; Figure 3 This is a three-dimensional structural diagram of the disk portion of the present invention; Figure 4 This is a cross-sectional view of the guide rod of the present invention; Figure 5 This is a three-dimensional structural diagram of the movable strip of the present invention; Figure 6 This is a three-dimensional structural diagram of the two arc-shaped parts of the present invention; Figure 7 This is a three-dimensional structural diagram of the cutting groove of the present invention; Figure 8 This is a three-dimensional structural diagram of the inclined surface of the present invention; Figure 9 This is a three-dimensional structural diagram of the protruding portion of the present invention; Figure 10 This is a three-dimensional structural diagram of the inclined plate of the present invention.

[0026] In the diagram: 1. Anchor bolt; 2. Connecting mechanism; 3. Hollowed-out disc one; 4. Hollowed-out disc two; 5. Hollowed-out disc three; 6. Connecting ring; 7. Groove; 8. Positioning strip; 9. Vertical part one; 10. Arc-shaped part one; 11. Movable strip; 12. Vertical part two; 13. Arc-shaped part two; 14. Disc; 15. Connecting rod; 16. Guide rod; 17. Spring; 18. Rib; 19. Cutting groove; 20. Inclined surface; 21. Connecting block; 22. Rib plate; 23. Protrusion; 24. Through groove; 25. Inclined plate; 26. Rib plate; 27. V-shaped surface; 28. Expansion support assembly.

[0027] As shown in the figure, specific structures and devices are labeled in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0028] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, describes a support structure and its application method for emergency landslide control provided by the present invention. It should be noted that, to make the embodiments more comprehensive, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0029] like Figures 1-10 As shown, an embodiment of the present invention provides a support structure for emergency landslide control, including an anchor rod 1. A connecting mechanism 2 is provided on the anchor rod 1. The connecting mechanism 2 includes a hollowed-out disc 3, a hollowed-out disc 4, and a hollowed-out disc 5 fixedly sleeved on the anchor rod 1. The diameters of the hollowed-out disc 3, the hollowed-out disc 4, and the hollowed-out disc 5 decrease sequentially. Multiple sets of connecting rings 6 are also fixedly sleeved on the anchor rod 1. Grooves 7 are provided on the anchor rod 1 corresponding to the connecting rings 6. During operation, anchor rod 1 is inserted into the hole. Hollowed-out disc 1 3, hollowed-out disc 2 4, hollowed-out disc 3 5 and connecting ring 6 are used to increase the contact area between anchor rod 1 and grout body. Hollowed-out disc 1 3, hollowed-out disc 2 4, hollowed-out disc 3 5 and connecting ring 6 can increase the contact area between anchor rod 1 and grout body, improve the bonding strength between anchor rod 1 and grout body, and enhance the pull-out resistance of anchor rod 1. Groove 7 can discharge air at connecting ring 6 during grouting, ensuring that grout completely covers connecting ring 6. The stepped diameter setting of hollowed-out disc 1 3, hollowed-out disc 2 4, hollowed-out disc 3 5 can reduce the flow resistance of grout during grouting, so that grout can fully contact anchor rod 1 and ensure stable connection between grout body and anchor rod 1. A support assembly 28 is provided at the first 3 of the hollowed-out plate. The support assembly 28 includes a movable strip 11. A guide groove is provided on the outer wall of the hollowed-out plate 3. The movable strip 11 includes a vertical part 2 12 that is slidably connected in the guide groove. An arc-shaped part 2 13 is fixed at the end of the vertical part 2 12 away from the anchor rod 1. Both the vertical part 2 12 and the arc-shaped part 2 13 are elliptical. A circular groove is provided on the anchor rod 1 at one end corresponding to the hollowed-out plate 3. A guide rod 16 is slidably connected in the circular groove. A spring 17 is fixed at one end of the guide rod 16, and a disc 14 is fixed at the other end. The spring 17 is installed in the circular groove. A connecting rod 15 is rotatably connected to the side of the disc 14 near the anchor rod 1. A sliding groove is provided on the side of the hollowed-out plate 3. The end of the connecting rod 15 away from the disc 14 passes through the sliding groove and is rotatably connected to the vertical part 2 12. After the anchor rod 1 is inserted into the hole, the disc 14 rests against the deepest part of the hole. Pressing the anchor rod 1 causes the movable strip to... 11 opens and inserts into the soil inside the hole. The second arc-shaped part 13 guides the anchor rod 1 when it is inserted into the hole. The arc-shaped part 13 is arc-shaped, which can prevent its end from hitting the inner wall of the hole and affecting the insertion of the anchor rod 1. After the disc 14 is pressed against the bottom of the hole, the connecting rod 15 pushes the movable bar 11 to slide outward, so that the second arc-shaped part 13 is inserted into the soil, which improves the connection strength between the anchor rod 1 and the soil. After grouting, the grout can fill the depression area formed by compression, enhance the bonding force between the grout body and the hole wall, and further improve the pull-out resistance of the anchor rod 1. At the same time, the weight of the anchor rod 1 can offset the elastic force of the spring 17. After the second arc-shaped part 13 is inserted into the soil, it will not retract under the elastic force of the spring 17. The second vertical part 12 and the second arc-shaped part 13 are both elliptical. The elliptical design can prevent the movable bar 11 from rotating in the guide groove and reduce the resistance when the second arc-shaped part 13 is inserted into the soil.

[0030] like Figure 1 As shown in this embodiment, multiple positioning strips 8 are fixed on the outer walls of both the second hollow disc 4 and the third hollow disc 5. The positioning strips 8 are used to guide the anchor rod 1 when it is inserted into the hole. The positioning strips 8 can guide the anchor rod 1 during the insertion process, avoid the end of the anchor rod 1 pressing against the hole wall and affecting the insertion of the anchor rod 1, facilitate the smooth insertion of the anchor rod 1 into the hole, and keep the anchor rod 1 in the center of the hole after it is in place, thus laying the foundation for the stable pull-out resistance of the anchor rod 1 and subsequent grouting construction. The positioning strip 8 includes a vertical part 9 fixed to the outer wall of the hollow disc 1 3 and the hollow disc 2 4. An arc-shaped part 10 is fixed to the end of the vertical part 9 away from the anchor rod 1. The vertical part 9 provides stable support for the arc-shaped part 10. The arc-shaped part 10 can move smoothly along the inner wall of the hole, further improving the guiding effect when the anchor rod 1 is inserted, and ensuring that the anchor rod 1 is centered, stable and reliable.

[0031] like Figures 5-8As shown in this embodiment, two ribs 18 are fixed on the arc-shaped part 2 13. One end of the rib 18 near the hollow plate 2 4 is fixed on the vertical part 2 12. The ribs 18 can enhance the structural strength of the arc-shaped part 2 13, prevent it from deforming when inserted into the soil, and ensure that the expansion and anchoring effect is stable and reliable. Ribs 18 are inclined and have cutting grooves 19. The distance between two cutting grooves 19 is greater than the length of the short axis of the arc-shaped part 13. The inner wall of the cutting groove 19 has a slope 20 on the side near the anchor rod 1. The cutting groove 19 can cut the soil on the side wall of the depression area formed by the compression of the arc-shaped part 13, reduce the soil density of the side wall of the depression area, and facilitate the penetration of grout into the soil. The slope 20 guides the cut soil to slide down to the arc-shaped part 13, preventing the soil from accumulating on the side wall of the depression area and affecting the penetration of grout, further improving the connection strength between the grout and the soil. The grout at the arc-shaped part 13 is used to connect the grout in the hole with the grout penetrating into the soil, improving the connection strength between the two and providing a strong guarantee for improving the pull-out resistance of the anchor rod 1.

[0032] like Figure 7 and Figure 8 As shown in this embodiment, a connecting block 21 is fixed at the middle position of the inner wall of the cutting groove 19. The connecting block 21 can improve the structural strength of the cutting groove 19 area, making the cutting groove 19 less prone to deformation when it encounters small stones, and ensuring stable and reliable cutting action.

[0033] like Figure 5 , Figure 6 , Figure 9 and Figure 10 As shown in this embodiment, multiple ribs 22 are fixed together on the sides of the arc-shaped part 13 and the rib 18. A protrusion 23 is integrally formed on the side of the rib 22 away from the anchor rod 1. A V-shaped surface 27 is provided on the side of the protrusion 23 away from the anchor rod 1. The ribs 22 improve the deformation resistance of the arc-shaped part 13 and the rib 18. The protrusion 23 is inserted into the soil simultaneously to further improve the anchoring force. The V-shaped surface 27 can reduce the resistance when the protrusion 23 is inserted into the soil, making the insertion of the protrusion 23 into the soil smoother.

[0034] like Figure 9 and Figure 10 As shown in this embodiment, a through groove 24 is provided on the side of the protrusion 23, and an inclined plate 25 is fixed on the side of the protrusion 23 corresponding to the position of the through groove 24. A stiffening plate 26 is fixed between the inclined plate 25 and the protrusion 23. The inclined plate 25 and the protrusion 23 form a flow guiding space. During grouting, the grout can enter the through groove 24 along the inclined plate 25 and penetrate into the surrounding soil, which greatly improves the bonding strength between the grout and the soil. At the same time, the grout at the inclined plate 25 is used to connect the grout in the hole and the grout that has penetrated into the soil, which improves the connection strength of the grout at different positions, significantly improves the overall pull-out resistance of the anchor rod 1, and ensures the stability and reliability of the landslide emergency treatment support structure.

[0035] A method for using a landslide emergency treatment support structure, applied to the aforementioned landslide emergency treatment support structure, includes the following steps: S1: Drill holes on the slope and insert anchor rod 1 into the holes. Positioning strip 8 and movable strip 11 are used to guide anchor rod 1 when it is inserted into the holes. S2: Press the anchor rod 1 to open the expansion component 28, and the movable strip 11, the protrusion 23 and the inclined plate 25 are all inserted into the soil at the inner wall of the hole; S3: Grout is injected into the hole, and the grout is wrapped around the anchor rod 1.

[0036] Working principle: During construction, the anchor rod 1 is inserted into the pre-drilled hole in the slope. The anchor rod 1 is fixedly fitted with a hollowed-out disc 1 3, a hollowed-out disc 2 4, a hollowed-out disc 3 5 and multiple sets of connecting rings 6. The hollowed-out disc 1 3, hollowed-out disc 2 4, hollowed-out disc 3 5 and connecting rings 6 increase the contact area between the anchor rod 1 and the grouting body, improve the bonding strength between the anchor rod 1 and the grouting body, enhance the pull-out resistance of the anchor rod 1, and make the slope support more stable and reliable. The anchor rod 1 has a groove 7 at the corresponding connecting ring 6. During grouting, the grout squeezes the air at the connecting ring 6, allowing the air to be discharged from the groove 7, ensuring that the grout stably and completely covers the connecting ring 6. At the same time, the diameters of the first hollowed-out plate 3, the second hollowed-out plate 4, and the third hollowed-out plate 5 decrease in sequence. The first hollowed-out plate 3 is closer to the bottom of the hole, and the third hollowed-out plate 5 is closer to the opening of the hole. This stepped structure can reduce the flow resistance of the grout during grouting, allowing the grout to fully contact the anchor rod 1, and providing a guarantee for the stable connection between the grouting body and the anchor rod 1. Multiple positioning strips 8 are fixed on the outer walls of both the second and third hollowed-out discs 4 and 5. The positioning strips 8 consist of a vertical part 9 and an arc-shaped part 10. During the insertion of the anchor rod 1 into the hole, the arc-shaped part 10 moves along the inner wall of the hole to guide the anchor rod 1, preventing the end of the anchor rod 1 from pressing against the hole wall and facilitating the smooth insertion of the anchor rod 1 into the hole. After the anchor rod 1 is inserted into place, the positioning strips 8 keep the anchor rod 1 in the center of the hole, laying the foundation for the stable pull-out resistance of the anchor rod 1 and subsequent grouting construction. An expansion component 28 is provided at the end of the anchor rod 1 corresponding to the position of the hollow disk 3. When the anchor rod 1 is inserted into the hole to the bottom, the disk 14 abuts against the deepest part of the hole. If the anchor rod 1 is pressed, the spring 17 is compressed. At the same time, the connecting rod 15 pushes the movable strip 11 to slide outward along the inner wall of the guide groove of the hollow disk 3, so that the arc-shaped part 13 of the movable strip 11 opens outward and inserts into the soil inside the hole, thereby improving the connection strength between the anchor rod 1 and the soil. After the grout is injected, it can fill the concave area formed by the compression of the arc-shaped part 13, improve the bonding force between the grout and the soil of the hole wall, and further enhance the pull-out resistance of the anchor bolt 1. Two inclined ribs 18 are fixed on the arc-shaped part 2 13. One end of the ribs 18 is connected to the vertical part 2 12, which can enhance the structural strength of the arc-shaped part 2 13 and prevent deformation when inserted into the soil. The ribs 18 are provided with cutting grooves 19. When the ribs 18 move with the arc-shaped part 2 13, the cutting grooves 19 cut the soil on the hole wall, reduce the soil density on the side wall of the concave area, facilitate the penetration of grout into the soil, further improve the connection strength between the grout body and the soil, and enhance the pull-out resistance of the anchor rod 1. The inner wall of the cutting groove 19 is provided with a slope 20. When the cutting groove 19 cuts the soil, the slope 20 guides the cut soil to slide down to the arc-shaped part 13, avoiding the soil from piling up on the side wall of the concave area and ensuring that the slurry can stably penetrate into the side wall of the concave area. A connecting block 21 is fixed in the middle of the cutting groove 19, which can improve the structural strength of the cutting groove 19 area, making the cutting groove 19 less prone to deformation when encountering small stones, and ensuring that the cutting action is stable and reliable. The arc-shaped part 13 and the side of the rib 18 are jointly fixed with multiple rib plates 22, which further improves the deformation resistance of the rib 18 and the arc-shaped part 13, and ensures that the cutting groove 19 can stably cut the soil. The protrusion 23 on the rib plate 22 is inserted into the soil synchronously with the arc-shaped part 13, which further improves the anchoring force between the anchor rod 1 and the soil. The V-shaped surface 27 on the protrusion 23 reduces the resistance when the protrusion 23 is inserted into the soil, making the insertion smoother. A through groove 24 is provided on the side of the protrusion 23, and an inclined plate 25 is fixed at the position of the through groove 24. A stiffening plate 26 is fixed between the inclined plate 25 and the protrusion 23 to improve the structural strength. When the protrusion 23 is inserted into the soil, the inclined plate 25 simultaneously squeezes the soil. During grouting, the grout enters between the inclined plate 25 and the protrusion 23, flows along the inclined plate 25 into the through groove 24 and permeates into the surrounding soil, which greatly improves the bonding strength between the grout and the soil, significantly enhances the overall pull-out resistance of the anchor rod 1, and ensures the stability and reliability of the landslide emergency treatment support structure.

[0037] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A support structure for emergency landslide control, comprising anchor bolts (1), characterized in that, The anchor rod (1) is provided with a connecting mechanism (2), which includes a hollow disc one (3), a hollow disc two (4) and a hollow disc three (5) fixedly sleeved on the anchor rod (1). The diameters of the hollow disc one (3), the hollow disc two (4) and the hollow disc three (5) decrease sequentially. Multiple sets of connecting rings (6) are also fixedly sleeved on the anchor rod (1). Grooves (7) are provided on the anchor rod (1) corresponding to the connecting rings (6). During operation, the anchor rod (1) is inserted into the hole. Hollowed-out disc one (3), hollowed-out disc two (4), hollowed-out disc three (5) and connecting ring (6) are used to increase the contact area between the anchor rod (1) and the grouting body.

2. The support structure for landslide emergency treatment according to claim 1, characterized in that, The outer walls of the two hollowed-out discs (4) and three hollowed-out discs (5) are each fixed with multiple positioning strips (8), which are used to guide the anchor rod (1) when it is inserted into the hole.

3. The support structure for landslide emergency treatment according to claim 2, characterized in that, The positioning bar (8) includes a vertical part (9) fixed to the outer wall of the first hollow plate (3) and the second hollow plate (4), and an arc-shaped part (10) is fixed to the end of the vertical part (9) away from the anchor rod (1).

4. The support structure for landslide emergency treatment according to claim 1, characterized in that, An expansion component (28) is provided at the hollow disk one (3). The expansion component (28) includes a movable strip (11). A guide groove is provided on the outer wall of the hollow disk one (3). The movable strip (11) includes a vertical part two (12) that is slidably connected in the guide groove. An arc-shaped part two (13) is fixed at the end of the vertical part two (12) away from the anchor rod (1). Both the vertical part two (12) and the arc-shaped part two (13) are elliptical. A circular groove is provided on the anchor rod (1) at one end corresponding to the hollow disk one (3). A guide rod (16) is slidably connected in the circular groove. One end of the rod (16) is fixed with a spring (17), and the other end is fixed with a disc (14). The spring (17) is installed in the groove. The disc (14) is rotatably connected to a connecting rod (15) on the side near the anchor rod (1). A sliding groove is provided on the side of the hollow disc (3). The end of the connecting rod (15) away from the disc (14) passes through the sliding groove and is rotatably connected to the vertical part (12). After the anchor rod (1) is inserted into the hole, the disc (14) rests against the deepest part of the hole. Pressing the anchor rod (1) causes the movable strip (11) to open and insert into the soil in the hole.

5. The support structure for landslide emergency treatment according to claim 4, characterized in that, Two ribs (18) are fixed on the arc-shaped part two (13), and one end of the ribs (18) near the hollow plate two (4) is fixed on the vertical part two (12).

6. The support structure for landslide emergency treatment according to claim 5, characterized in that, The rib (18) is inclined and has a cutting groove (19) on it. The distance between the two cutting grooves (19) is greater than the length of the short axis of the arc part two (13). The inner wall of the cutting groove (19) has an inclined surface (20) on the side close to the anchor rod (1).

7. The support structure for landslide emergency treatment according to claim 6, characterized in that, A connecting block (21) is fixed at the middle position of the inner wall of the blade groove (19).

8. The support structure for landslide emergency treatment according to claim 6, characterized in that, The arc-shaped part 2 (13) and the side of the rib (18) are jointly fixed with multiple rib plates (22). The side of the rib plate (22) away from the anchor rod (1) is integrally formed with a protrusion (23), and the side of the protrusion (23) away from the anchor rod (1) is provided with a V-shaped surface (27).

9. The support structure for landslide emergency treatment according to claim 8, characterized in that, The side of the protrusion (23) is provided with a through groove (24), and an inclined plate (25) is fixed on the side of the protrusion (23) corresponding to the position of the through groove (24). A stiffening plate (26) is fixed between the inclined plate (25) and the protrusion (23).

10. A method of using a landslide emergency treatment support structure, employing the landslide emergency treatment support structure as described in any one of claims 1-9, characterized in that, Includes the following steps: S1: Drill holes on the slope and insert anchor rod (1) into the holes. Positioning strip (8) and movable strip (11) are used to guide the anchor rod (1) when it is inserted into the holes. S2: Press the anchor rod (1) to open the expansion assembly (28), and the movable strip (11), protrusion (23) and inclined plate (25) are inserted into the soil at the inner wall of the hole; S3: Grout is injected into the hole, and the grout body is wrapped around the anchor rod (1).

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