Anchoring drilling device and method for slope reinforcement construction

Abstract

The invention relates to the field of construction drilling, in particular to an anchoring drilling device and method for slope reinforcement construction, the anchoring drilling device comprises a driving part, an output shaft of the driving part is provided with a drilling rod, and the drilling rod is fixedly connected with a center drill bit; the bottom of the sleeve is fixedly connected with a reaming sleeve, and the reaming sleeve is detachably connected with the central drill bit; a plurality of cavities are formed in the side wall of the sleeve, a plurality of interaction holes are formed in the outer side of the sleeve, sliding grooves are formed in the tops of the cavities, guide rods are slidably connected into the sliding grooves, guide rails are fixedly connected to the side walls of the cavities, baffles are clamped to the interaction holes, the guide rods are fixedly connected with the baffles through folding parts, and the folding parts are slidably connected with the guide rails. A locking mechanism for locking the position of the guide rod is arranged at the top of the sleeve; an elastic piece is fixedly connected to the inner side wall of the cavity, an ejection piece is fixedly connected to the elastic piece, and an adhesive tape roll is rotationally connected into the cavity. By the adoption of the technical scheme, the adhesive tape can be left when the casing pipe is pulled out, and the hole wall formed when the slurry is not solidified and the casing pipe is pulled out is reinforced.

Description

Technical Field

[0001] This invention relates to the field of construction drilling technology, and more specifically, to an anchoring drilling device and method for slope reinforcement construction. Background Technology

[0002] Slope protection, also known as slope support or slope reinforcement, is a comprehensive technology involving geotechnical engineering, geology, hydrology, and structural engineering. During the construction of highways and railways, excavation and filling are unavoidable, forming road cut slopes and embankment slopes. Because these slopes can be quite steep and prone to rockfalls and landslides, reinforcement is necessary to ensure the smooth and safe operation of the railway lines.

[0003] In slope restoration projects, due to specific design requirements for slope gradient, a large amount of excavated or cleared debris accumulates at the bottom of the slope during construction. When drilling operations are required on these debris piles at the bottom of the slope, a serious problem of borehole collapse is encountered.

[0004] Traditional drilling methods are prone to collapse during drilling into such slag heaps due to the lack of effective bonding and stability between the slag particles. This collapse not only disrupts drilling operations and affects construction progress but also damages drilling equipment and increases construction costs. Furthermore, re-drilling after a collapse wastes manpower, resources, and time, and may cause secondary damage to the surrounding environment. Therefore, there is an urgent need for a technical solution to effectively address the problem of borehole collapse in slag heaps backfilled on slopes.

[0005] Since the rock face may have already weathered during reinforcement, current technologies for weathered geology include drilling with mud slurry, low-pressure slow drilling, and casing drilling. Mud slurry refers to using drilling fluid to carry rock powder, forming a thin, tough mud cake to support the borehole wall. Low-pressure slow drilling involves controlling drilling parameters, gradually increasing pressure after the drill bit has smoothly entered the rock strata, avoiding sudden pressure increases that could cause uneven rock fragmentation at the bottom of the hole. Casing drilling is the most effective method, as it involves installing casing while the drill bit is entering the borehole, effectively reinforcing it. Subsequent grouting can be performed by simultaneously injecting grout and withdrawing the casing. However, the grout needs time to solidify after injection; if it hasn't solidified and the casing is withdrawn, it's difficult to effectively support the borehole wall. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides an anchoring drilling device and method for slope reinforcement construction. By specializing the casing, an adhesive tape is left behind when the casing is withdrawn, thus reinforcing the hole wall before the grout has solidified and when the casing is withdrawn.

[0007] This invention is achieved through the following technical solution: an anchoring drilling device for slope reinforcement construction, including a driving component, a drilling rod detachably connected to the output shaft of the driving component, and a central drill bit fixedly connected to the end of the drilling rod away from the driving component; It also includes a casing, with a reaming sleeve fixedly connected to the bottom of the casing. The reaming sleeve has a grinding part at the bottom and is detachably connected to the center drill bit by threads. The sleeve has several cavities inside its sidewall and several interlocking holes on its outer side. The top of each cavity has a groove, and both the interlocking holes and the groove are connected to the cavity. A guide rod is slidably connected inside the groove, with one end of the guide rod extending into the cavity. A guide rail is fixedly connected to the sidewall of the cavity, with the end of the guide rail near the interlocking hole being lower than the end away from the interlocking hole. A baffle is engaged at the interlocking hole, and the guide rod is fixedly connected to the baffle through a bend. The bend is slidably connected to the guide rail. A locking mechanism is provided at the top of the sleeve to lock the position of the guide rod. The baffle, the bend, and the guide rail are all provided with an anti-sticking layer. An elastic element is fixedly connected to the inner side wall of the cavity, and an ejector is fixedly connected to the elastic element. A tape roll is rotatably connected inside the cavity. The ejector is used to eject the tape on the tape roll out of the interaction hole after the baffle is disengaged from the interaction hole.

[0008] Furthermore, the central drill bit is equipped with a slag discharge port, which is used to transport the rock cuttings cut by the central drill bit into the casing.

[0009] Furthermore, the locking mechanism includes a sealing strip, which is rotatably connected to the top of the sleeve. The sealing strip is used to rotate to the groove to close the groove.

[0010] Furthermore, a pipe support block is fixedly connected to one end of each sealing strip. The sealing strip is used to rotate to the inside of the casing and construct a pipe support for constraining the grouting pipe through the pipe support block.

[0011] Furthermore, the ejector includes a base block on which rollers are rotatably connected.

[0012] Furthermore, the tape roll has reinforcing ribs inside.

[0013] Furthermore, a magnetic sheet is provided at one end of the tape roll, which is used to magnetically attach to the roller.

[0014] Furthermore, both the magnetic sheet and the bottom of the interactive hole are provided with a conical surface.

[0015] An anchoring drilling method for slope reinforcement construction, based on the aforementioned anchoring drilling device for slope reinforcement construction, includes: Step 1: The uneven slope is trimmed and shaped. An excavator climbs to the top of the slope and a hydraulic hammer is used to break up the loose and broken rocks. Step two: Manually clean the slope surface after the slope is cut. Use a pneumatic pick to clean the broken rock areas to ensure that there are no stones on the surface. Step 3: Use a geological compass for orientation, control the angle between the drill rod and the horizontal at 15°, and operate the center drill bit to drill the hole; Step 4: After drilling is completed, drive the center drill bit to rotate in the opposite direction of the thread to disengage the center drill bit from the reaming sleeve, and remove the drill rod and the center drill bit. Step 5: The bent part of the drive guide rod slides on the guide rail, causing the baffle to disengage from the interactive hole. The elastic element will drive the ejector to eject, so that the tape roll sticks to the weathered rock mass on the hole wall. Step six: While grouting, remove the casing to prevent the grout from contacting the casing and the borehole expansion sleeve. The tape roll can enhance the integrity of the weathered rock mass during the period from grout injection to grout solidification, making it less prone to breakage.

[0016] The technical solution of the present invention has at least the following beneficial effects: Weathered rock masses may fracture during drilling, causing borehole wall collapse and affecting the stability of the surrounding terrain. Therefore, borehole wall support is necessary during drilling. This drilling method utilizes a central drill bit and a grinding section. Since the central drill bit and the reamer are detachably connected by threads, when the central drill bit rotates clockwise, it locks the reamer through the threads, causing the reamer to rotate with the central drill bit. The grinding section at the bottom of the reamer is also rotated, cutting through the rock or soil to create additional space to accommodate the casing.

[0017] After drilling is complete, the center drill bit can be rotated counter-threaded to disengage from the reamer. At this point, the center drill bit and drill rod can be removed together, while the casing remains inside the borehole. During subsequent grouting, the casing is pulled out of the borehole while grouting is being performed, allowing for simultaneous casing recovery and reinforcement. Once the grout solidifies, a stable reinforced structure is formed. However, the grout requires a period of time to solidify after grouting; if it hasn't solidified, it won't effectively support the borehole wall when the casing is pulled out.

[0018] Adhesive tape rolls can reinforce weathered rock masses to a certain extent. The principle is that the adhesive binds the weathered rock blocks together, making them less prone to breakage. Adhesive tape rolls are also extremely inexpensive and can be used directly as consumables. However, the adhesive nature of the tape rolls means that directly applying them during drilling can interfere with the drilling process. Furthermore, the rock cuttings and dust generated by the rotating casing during drilling can also cause the tape rolls to lose adhesion to the borehole wall.

[0019] Therefore, a cavity is set inside the casing, and the tape roll is placed inside the cavity. During drilling, the baffle will seal the inter-hole, thus preventing the tape roll from contacting rock cuttings and dust, and avoiding tape roll failure due to contact with rock cuttings and dust. The guide rod is located at the groove at the top of the cavity, which facilitates user operation. During drilling, the guide rod can be fixed by a locking mechanism to prevent the baffle from disengaging from the inter-hole. Before subsequent grouting, the user can slide the guide rod, which will slide obliquely along the guide rail, thereby causing the baffle to disengage from the inter-hole. The ejector will push the tape on the tape roll out of the inter-hole, so that the weathered rock blocks are bonded and reinforced, enhancing the stability of the borehole wall during the period when the grout has not solidified and the casing is withdrawn. Attached Figure Description

[0020] Figure 1 This is an isometric schematic diagram of an embodiment of the anchoring drilling device for slope reinforcement construction of the present invention; Figure 2 This is an isometric schematic diagram from another perspective of an embodiment of the anchoring drilling device for slope reinforcement construction of the present invention; Figure 3 This is a top view schematic diagram of an embodiment of the anchoring drilling device for slope reinforcement construction of the present invention; Figure 4 This is a top view of the rotating locking mechanism of an embodiment of the anchoring drilling device for slope reinforcement construction of the present invention. Figure 5 This is a cross-sectional schematic diagram of an embodiment of the anchoring drilling device for slope reinforcement construction of the present invention; Figure 6 for Figure 5 An enlarged schematic diagram of part A in the middle; Figure 7 This is a schematic diagram of the structure of the anchoring drilling device for slope reinforcement construction of the present invention after the guide rod slides.

[0021] Reference numerals: 1. Driving component; 2. Drill rod; 3. Center drill bit; 4. Casing; 5. Reamer sleeve; 6. Grinding part; 7. Cavity; 8. Interlocking hole; 9. Slide groove; 10. Guide rod; 11. Guide rail; 12. Baffle; 13. Bend; 14. Locking mechanism; 15. Elastic component; 16. Ejector; 17. Tape roll; 18. Slag discharge port; 19. Magnetic sheet; 20. Conical surface; 1401. Sealing strip; 1402. Pipe support block; 1601. Base block; 1602. Roller. Detailed Implementation

[0022] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] The following detailed description illustrates the specific implementation method: Example 1 As attached Figures 1-7 As shown, an anchoring drilling device for slope reinforcement construction includes a drive component 1, which is a motor. The output shaft of the drive component 1 is detachably connected to a drilling rod 2, and a central drill bit 3 is bolted to one end of the drilling rod 2 away from the drive component 1.

[0026] It also includes a casing 4, with a reaming sleeve 5 bolted to the bottom of the casing 4. The reaming sleeve 5 has a grinding part 6 at the bottom. The reaming sleeve 5 is detachably connected to the center drill bit 3 by threads. The center drill bit 3 has a slag discharge port 18 on its drilling surface. The slag discharge port 18 is used to transport the rock cuttings cut by the center drill bit 3 to the casing 4 through the slag discharge port 18.

[0027] The casing 4 has several cavities 7 inside its side wall and several interlocking holes 8 on its outer side. The interlocking holes 8 are located at the end of the casing 4 near the central drill bit 3. The top of the cavity 7 has a groove 9. Both the interlocking holes 8 and the groove 9 are connected to the cavity 7. A guide rod 10 is slidably connected in the groove 9. One end of the guide rod 10 extends into the cavity 7. A guide rail 11 is bolted to the side wall of the cavity 7. The height of the end of the guide rail 11 near the interlocking hole 8 is lower than the end away from the interlocking hole 8. A baffle 12 is engaged at the interlocking hole 8. The guide rod 10 is fixedly connected to the baffle 12 through a bend 13. The bend 13 is an inclined rod with the same inclination angle as the guide rail 11. The bend 13 is slidably connected to the guide rail 11. The top of the casing 4 has a locking mechanism 14 for locking the position of the guide rod 10.

[0028] The locking mechanism 14 includes a sealing strip 1401, which is rotatably connected to the top of the sleeve 4. The sealing strip 1401 is used to rotate to the slide groove 9 to close the slide groove 9. One end of the sealing strip 1401 is bolted to a pipe support block 1402. The sealing strip 1401 is used to rotate to the inside of the sleeve 4 and construct a pipe support for constraining the grouting pipe through the pipe support block 1402.

[0029] The surfaces of the baffle 12, the bend 13 and the guide rail 11 are all provided with an anti-stick layer, which can be a release coating. An elastic element 15 is bolted to the inner wall of the cavity 7. The elastic element 15 is a spring. An ejector 16 is welded to the elastic element 15. A tape roll 17 is rotatably connected inside the cavity 7. The ejector 16 is used to eject the tape on the tape roll 17 out of the interaction hole 8 after the baffle 12 is disengaged from the interaction hole 8.

[0030] An anchoring drilling method for slope reinforcement construction, based on the aforementioned anchoring drilling device for slope reinforcement construction, includes: Step 1: The uneven slope is trimmed and shaped. An excavator climbs to the top of the slope and a hydraulic hammer is used to break up the loose and broken rocks. Step two: Manually clean the slope surface after the slope is cut. Use a pneumatic pick to clean the broken rock areas to ensure that there are no stones on the surface. Step 3: Use a geological compass for orientation, control the angle between drill rod 2 and the horizontal at 15°, and operate the center drill bit 3 to drill the hole; Step 4: After drilling is completed, drive the center drill bit 3 to rotate in the reverse thread so that the center drill bit 3 and the reaming sleeve 5 can be dislodged and the drill rod 2 and the center drill bit 3 can be removed. Step 5: The bend 13 of the drive rod 10 slides on the guide rail 11, causing the baffle 12 to disengage from the interactive hole 8. The elastic element 15 will drive the ejector 16 to eject, so that the tape of the tape roll 17 is stuck to the weathered rock mass on the hole wall. Step six: While grouting, remove the casing 4 so that the grout does not come into contact with the casing 4 and the borehole expansion sleeve 5. The tape roll 17 can enhance the integrity of the weathered rock mass during the period from grout injection to grout solidification, making it less prone to breakage.

[0031] The application scenario for this example is a severely weathered rock slope. During drilling, the weathered rock mass may fracture, causing the borehole wall to collapse and affecting the stability of the surrounding terrain. Therefore, it is necessary to support the borehole wall during the drilling process.

[0032] In conventional drilling, due to the need for casing entry, the cutting diameter of the drill bit must be larger than that of the casing 4; otherwise, it is impossible to create additional space to accommodate the casing 4. However, the casing 4 has a thickness, and if the drill bit diameter exceeds the inner diameter of the casing 4, the drill bit cannot be directly removed from the casing 4. In this embodiment, drilling is based on a central drill bit 3 and a grinding section 6. Since the central drill bit 3 and the reamer 5 are detachably connected by threads, when the central drill bit 3 rotates along the threads, it locks the reamer 5, causing the reamer 5 to rotate with the central drill bit 3. The grinding section 6 at the bottom of the reamer 5 is also driven to rotate, thereby cutting the rock or soil and creating additional space to accommodate the casing 4. As the central drill bit 3 rotates, it cuts the rock or soil, and the resulting rock cuttings and dust are discharged from the slag discharge port 18 to enhance slag removal performance.

[0033] After drilling is completed, the central drill bit 3 can be disengaged from the reamer 5 by rotating it counter-threaded. At this point, the central drill bit 3 and drill rod 2 can be removed together, while the casing 4 remains inside the borehole to support the borehole wall. Rock cuttings and dust inside the casing 4 should be cleaned. During subsequent grouting, the casing 4 can be pulled out of the borehole while grouting is being performed. This allows for simultaneous grouting reinforcement and grouting recovery. Once the grout solidifies, a stable reinforced structure is formed. However, the grout requires a period of time to solidify after grouting. If it is not solidified, it will be difficult to effectively support the borehole wall when the casing 4 is pulled out.

[0034] Tape roll 17 can reinforce weathered rock masses to a certain extent. Its principle is to use adhesion to bind the weathered rock blocks together, making them less prone to breakage. Tape roll 17 is also extremely inexpensive and can be used directly as a consumable. However, due to its adhesive nature, directly applying tape roll 17 during drilling can affect the drilling process. Furthermore, the rock cuttings and dust generated by the rotation of the casing 4 during drilling can also cause the tape roll 17 to lose its adhesion to the borehole wall.

[0035] Therefore, a cavity 7 is provided inside the casing 4, and the tape roll 17 is placed inside the cavity 7. During drilling, the baffle 12 will close the intersecting hole 8, thereby preventing the tape roll 17 from contacting rock cuttings and dust, and preventing the tape roll 17 from failing due to contact with rock cuttings and dust. The guide rod 10 is located at the groove 9 at the top of the cavity 7, which facilitates operation by the user on the ground. During drilling, the guide rod 10 can be fixed by the locking mechanism 14 to prevent the baffle 12 from disengaging from the intersecting hole 8 during drilling. Since the guide rod 10 slides along the guide rail 11, it will move both laterally and vertically at the same time. The sealing strip 1401 can directly close the groove 9 by rotation, thereby preventing the guide rod 10 from moving.

[0036] Before grouting, the user can open the sealing strip 1401 so that it points to the center of the casing 4. The pipe support blocks 1402 will form a pipe support structure, so that the grouting pipe can be constrained by the pipe support blocks 1402 during subsequent grouting. The sliding guide rod 10 will slide obliquely along the guide rail 11, thereby causing the baffle 12 to disengage from the inter-hole 8. The ejector 16 will push the tape on the tape roll 17 out of the inter-hole 8, so that the weathered rock blocks on the hole wall are bonded and reinforced, enhancing the stability of the hole wall during the period when the grout has not solidified and the casing 4 is withdrawn.

[0037] The surfaces of the baffle 12, the bend 13, and the guide rail 11 are all provided with an anti-stick layer, which can prevent the tape roll 17 from sticking to the baffle 12, the bend 13, or the guide rail 11, thus preventing the tape roll 17 from failing to eject.

[0038] Example 2 The difference from the above embodiment is that the ejector 16 includes a base block 1601, on which a roller 1602 is rotatably connected. The tape roll 17 has reinforcing ribs (not shown in the figure) inside the tape. One end of the tape roll 17 has a magnetic sheet 19, which is magnetically attracted to the roller 1602. The roller 1602 has a certain rotational damping to prevent it from being pulled by the tape roll 17 during ejection, thus preventing incorrect rotation and tape roll 17 from failing to adhere. Both the magnetic sheet 19 and the bottom of the interactive hole 8 have a conical surface 20.

[0039] Roller 1602 has the ability to rotate. When the tape roll 17 is ejected by ejector 16, due to the adhesive effect of tape roll 17, a part of tape roll 17 will stick to the hole wall. As the sleeve 4 is pulled out, the tape on tape roll 17 will be pulled out and adhere to the hole wall under the action of roller 1602. Roller 1602 can slide along the hole wall, thereby pressing and flattening the tape and reducing the resistance when the sleeve 4 is pulled out.

[0040] The magnetic sheet 19 can be attracted to the roller 1602. In this embodiment, the magnetic attraction force is less than the adhesive force of the tape roll 17. Therefore, the magnetic sheet 19 can ensure that the roller 1602 can effectively carry the magnetic sheet 19 when the tape roll 17 is not ejected. When the tape roll 17 is bonded to the side wall of the hole, since the adhesive force is greater than the magnetic attraction force, the magnetic sheet 19 will not cause the tape to lift or fall off due to magnetic action. At the same time, the conical surface 20 design of the magnetic sheet 19 allows the bottom of the interactive hole 8 to effectively press the magnetic sheet 19 onto the hole wall when the sleeve 4 is pulled out, reducing the probability of the tape being lifted due to scratching.

[0041] Reinforcing ribs can increase the toughness of the tape, making it less prone to breakage and further enhancing its fixation effect on weathered rock masses.

[0042] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An anchoring drilling device for slope reinforcement construction, characterized in that, Includes a drive unit (1), the output shaft of the drive unit (1) is detachably connected to a drill rod (2), and the end of the drill rod (2) away from the drive unit (1) is fixedly connected to a central drill bit (3); It also includes a sleeve (4), a reaming sleeve (5) is fixedly connected to the bottom of the sleeve (4), a grinding part (6) is provided at the bottom of the reaming sleeve (5), and the reaming sleeve (5) is detachably connected to the center drill bit (3) by threads; The sleeve (4) has several cavities (7) inside its side wall and several interactive holes (8) on its outer side. The top of the cavity (7) has a sliding groove (9). The interactive holes (8) and the sliding groove (9) are connected to the cavity (7). A guide rod (10) is slidably connected in the sliding groove (9). One end of the guide rod (10) extends into the cavity (7). A guide rail (11) is fixedly connected to the side wall of the cavity (7). The height of the end of the guide rail (11) near the interactive hole (8) is lower than that of the end away from the interactive hole (8). A baffle (12) is engaged at the interactive hole (8). The guide rod (10) is fixedly connected to the baffle (12) through a bend (13). The bend (13) is slidably connected to the guide rail (11). The top of the sleeve (4) has a locking mechanism (14) for locking the position of the guide rod (10). The surfaces of the baffle (12), the bend (13) and the guide rail (11) are all provided with an anti-stick layer. An elastic element (15) is fixedly connected to the inner wall of the cavity (7). An ejector (16) is fixedly connected to the elastic element (15). A tape roll (17) is rotatably connected inside the cavity (7). The ejector (16) is used to eject the tape on the tape roll (17) out of the interaction hole (8) after the baffle (12) is disengaged from the interaction hole (8).

2. The anchoring drilling device for slope reinforcement construction according to claim 1, characterized in that, The center drill bit (3) is provided with a slag discharge port (18), which is used to transport the rock cuttings cut by the center drill bit (3) to the casing (4).

3. The anchoring drilling device for slope reinforcement construction according to claim 1, characterized in that, The locking mechanism (14) includes a sealing strip (1401), which is rotatably connected to the top of the sleeve (4). The sealing strip (1401) is used to rotate to the groove (9) to close the groove (9).

4. The anchoring drilling device for slope reinforcement construction according to claim 3, characterized in that, One end of each sealing strip (1401) is fixedly connected to a pipe support block (1402). The sealing strip (1401) is used to rotate to the inside of the sleeve (4) and construct a pipe support for constraining the grouting pipe through the pipe support block (1402).

5. The anchoring drilling device for slope reinforcement construction according to claim 1, characterized in that, The ejector (16) includes a base block (1601) on which a roller (1602) is rotatably connected.

6. The anchoring drilling device for slope reinforcement construction according to claim 1, characterized in that, The tape roll (17) has reinforcing ribs inside.

7. The anchoring drilling device for slope reinforcement construction according to claim 5, characterized in that, A magnetic sheet (19) is provided at one end of the tape roll (17), which is used to magnetically attach to the roller (1602).

8. The anchoring drilling device for slope reinforcement construction according to claim 7, characterized in that, Both the magnetic sheet (19) and the interactive hole (8) have a conical surface (20) at the bottom.

9. A method for anchoring boreholes in slope reinforcement construction, based on the anchoring borehole device for slope reinforcement construction according to claim 1, characterized in that, include: Step 1: The uneven slope is trimmed and shaped. An excavator climbs to the top of the slope and a hydraulic hammer is used to break up the loose and broken rocks. Step two: Manually clean the slope surface after the slope is cut. Use a pneumatic pick to clean the broken rock areas to ensure that there are no stones on the surface. Step 3: Use a geological compass for orientation, control the angle between the drilling rod (2) and the horizontal at 15°, and operate the center drill bit (3) to drill; Step 4: After drilling is completed, drive the center drill bit (3) to rotate in the reverse thread so that the center drill bit (3) and the reaming sleeve (5) can be dislodged and the drill rod (2) and the center drill bit (3) can be removed. Step 5: The bend (13) of the drive rod (10) slides on the guide rail (11), causing the baffle (12) to disengage from the interactive hole (8). The elastic element (15) will drive the ejector (16) to eject, so that the tape of the tape roll (17) sticks to the weathered rock mass on the hole wall. Step 6: While grouting, the casing (4) is pulled out so that the grout does not come into contact with the casing (4) and the expansion sleeve (5). The tape roll (17) can enhance the integrity of the weathered rock mass during the period from grout injection to grout solidification, making it less prone to breakage.

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