High slope rock mass slope active reinforcing system and using method thereof

Abstract

The invention discloses a high slope rock mass slope active reinforcing system and a using method thereof.The reinforcing system comprises an outer sleeve, an end base plate, an anchor cable, a vibration structure, a connecting structure and a base plate, one end of the outer sleeve is connected with one face of the end base plate, and the anchor cable and the vibration structure are arranged in the outer sleeve; one end of the anchor cable sequentially penetrates through the end base plate and the base plate, the connecting structure is connected with the end base plate, and the base plate is connected with the other face of the end base plate. Through the effect of the vibration structure, vibration of a grouting material in the outer sleeve can be achieved during use, so that bubbles generated after grouting of the interior of the outer sleeve can be greatly reduced, and then the overall reinforcing effect of the whole reinforcing system can be better; and the situation that the reinforcement of part of the reinforcement components is poor due to poor grouting effect is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of rock mass reinforcement, and in particular relates to a high-slope rock mass slope active reinforcement system and a use method thereof. Background Art

[0002] Rock reinforcement takes certain engineering measures to improve the mechanical and hydraulic properties of the rock mass and its environment to prevent the rock mass from being damaged. Through reinforcement, the stability of the rock mass structure can be maintained to ensure the safety of villages or buildings along the way and avoid potential dangers.

[0003] The patent document with announcement number CN115627756A discloses an anchor cable reinforcement structure and construction method for treating deep loose body slopes. The invention can effectively improve the pull-out resistance of the anchor cable anchor body in the loose body stratum under a shorter anchor cable length; however, the slope reinforcement system will produce certain bubbles inside the paddle body after internal grouting, and the anchor cable finally formed by the internal grouting is not stable enough. The presence of bubbles makes it impossible for the anchor cable structure to reach the optimal reinforcement state.

[0004] The patent document with the announcement number CN110847224A discloses a fill slope gravity retaining wall reinforcement structure and a construction method thereof, wherein the reinforcement structure includes an original gravity retaining wall, a fill slope above the retaining wall, a high-pressure rotary grouting reinforcement body constructed in the retaining wall foundation, a lattice anchor cable support structure constructed on the retaining wall, and a slope reinforcement structure constructed on the fill slope. The invention performs high-pressure rotary grouting reinforcement on the original retaining wall foundation, directly improving the bearing capacity of the retaining wall foundation, and transforming the passive protection of the original retaining wall into active protection with lattice pressure anchor cables, but does not disclose the technical content of grouting to remove bubbles, and the reinforcement method of multiple reinforcement structures. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a high-slope rock mass slope active reinforcement system and a method of using the same.

[0006] The present invention is achieved through the following technical solutions.

[0007] The present invention provides an active reinforcement system for high-slope rock slopes, comprising an outer casing, an end pad, an anchor cable, a vibration structure, a connecting structure and a pad, wherein one end of the outer casing is connected to one side of the end pad, the anchor cable and the vibration structure are arranged inside the outer casing, one end of the anchor cable passes through the end pad and the pad in sequence, the connecting structure is connected to the end pad, and the pad is connected to the other side of the end pad.

[0008] Preferably, the vibration structure includes an inner tube movably arranged inside the outer sleeve, the inner wall surface of the inner tube is fixedly connected to the supplementary grouting pipe, the axis of the inner tube is movably connected to the rotating tube, the outer surface of the rotating tube is fixedly connected to the jacking head, and one end of the rotating tube passes through the end pad and the movably connected joint behind the pad.

[0009] Preferably, a guide cap is provided in the outer sleeve, one end of the anchor cable is fixedly connected to the guide cap, a grouting stop ring is provided on the anchor cable, the anchor cable passes through the grouting stop ring and is connected, and the surface of the anchor cable is respectively fixedly connected to the primary grouting pipe and the secondary grouting pipe.

[0010] Preferably, one side of the end pad is fixedly connected to a threaded column, one end of the threaded column passes through the pad and is threadedly connected to a nut, a clip is provided on the inner side of the pad corresponding to the point where the anchor cable passes through, and the anchor cable is connected to the pad via the clip.

[0011] Preferably, the connection structure includes a connecting column fixedly connected to the end pad, a threaded portion is provided on the outer surface of the connecting column, the connecting column is threadedly connected to a limiting sleeve through the threaded portion, one end of the limiting sleeve is fixedly connected to the protrusion, and a mesh is provided on the connecting column.

[0012] Preferably, the inner tube is coaxially arranged with the outer tube, the supplementary grouting pipe is fixedly connected to the inner wall of the inner tube, and the supplementary grouting pipe passes through from the inside of the inner tube to the outside of the inner tube.

[0013] Preferably, the maximum distance between the jacking head and the rotating tube is greater than the minimum distance between the rotating tube and the supplementary grouting tube, and the jacking head is made of rubber.

[0014] Preferably, one end of the supplementary grouting pipe penetrates the inner pipe and the side wall of the outer sleeve and then extends out of the outer sleeve.

[0015] Preferably, the pad is in a truncated cone shape, and the pad and the end pad are both made of steel.

[0016] A method for using a high-slope rock mass slope active reinforcement system comprises the following steps:

[0017] S1: During the grouting process, the adapter is fixedly connected to the drilling rig, and the adapter is connected to the rotating tube. The drilling rig drives the adapter to rotate, and the rotating tube 43 is driven to rotate via the adapter, so that the rotating tube can rotate with it.

[0018] S2: The jacking head hits the supplementary grouting pipe, causing the supplementary grouting pipe and the inner pipe to vibrate, and the vibration is transmitted to the grouting material poured into the outer casing, and at the same time, a distance of the joint head and the rotating pipe is stretched outward, so that the distance between the jacking head and the supplementary grouting pipe is adjusted, and the vibration position is adjusted, which can be adjusted according to different grouting positions;

[0019] S3: The steel mesh is embedded in the concrete layer for fixing, and the connecting column is inserted into the concrete layer. The connecting column on the end pad is passed through the gap of the mesh, and the limiting sleeve is put on the outer surface of the connecting column and rotated and tightened, so that the mesh is fixedly connected between two adjacent groups of end pads, thereby completing the connection between the two adjacent groups of outer sleeves.

[0020] The beneficial effects of the present invention are:

[0021] Through the effect of the vibration structure in the present invention, when in use, the grouting material inside the outer sleeve can be vibrated, thereby greatly reducing the generation of bubbles after grouting inside the outer sleeve, thereby making the overall reinforcement effect of the entire reinforcement system better, and preventing the reinforcement of some reinforced components from being deteriorated due to poor grouting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the partial structure of the cutaway outer sleeve of the present invention;

[0024] Figure 3 It is a schematic diagram of a local structure cut away at the vibration structure of the present invention;

[0025] Figure 4 It is a partial structural schematic diagram of the disassembly and installation of the steel pad in the present invention;

[0026] Figure 5 It is a partial side sectional view during reinforcement in the present invention;

[0027] Figure 6 It is a structural schematic diagram of the connection of two reinforcement systems of the present invention;

[0028] Figure 7 It is a schematic diagram of the structural disassembly of the connection structure of the present invention;

[0029] In the figure: 1-outer sleeve, 2-end pad, 3-anchor cable, 4-vibration structure, 5-connection structure, 51-connecting column, 52-threaded part, 53-limiting sleeve, 54-mesh, 55-protrusion, 6-pad, 7-guide cap, 8-stop ring, 9-primary grouting pipe, 10-secondary grouting pipe, 11-threaded column, 12-nut, 13-clamp, 41-inner pipe, 42-supplementary grouting pipe, 43-rotating pipe, 44-moving head, 45-connector. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0031] Embodiment 1:

[0032] like Figures 1 to 5 As shown, an active reinforcement system for high-slope rock slope includes an outer casing 1, an end pad 2, an anchor cable 3, a vibration structure 4 and a pad 6. One end of the outer casing 1 is connected to one side of the end pad 2. The anchor cable 3 and the vibration structure 4 are arranged inside the outer casing 1. One end of the anchor cable 3 passes through the end pad 2 and the pad 6 in sequence. The pad 6 is connected to the other side of the end pad 2. The number of anchor cables 3 is three groups and they are distributed in a ring array. The three groups of anchor cables 3 respectively pass through the stop grouting ring 8.

[0033] The vibration structure 4 includes an inner tube 41 movably arranged inside the outer sleeve 1, the inner wall surface of the inner tube 41 is fixedly connected to the supplementary grouting pipe 42, the axis of the inner tube 41 is movably connected to a rotating tube 43, the outer surface of the rotating tube 43 is fixedly connected to a jacking head 44, and one end of the rotating tube 43 passes through the end pad 2 and the pad 6 and then movably connects to a connector 45.

[0034] A guide cap 7 is arranged inside the outer sleeve 1, one end of the anchor cable 3 is fixedly connected to the guide cap 7, a grouting stop ring 8 is arranged on the anchor cable 3, the anchor cable 3 penetrates through the grouting stop ring 8 and is connected, and the surface of the anchor cable 3 is respectively fixedly connected to a primary grouting pipe 9 and a secondary grouting pipe 10.

[0035] One side of the end pad 2 is fixedly connected to a threaded column 11, one end of the threaded column 11 passes through the pad 6 and is threadedly connected to a nut 12, a clip 13 is arranged on the inner side of the pad 6 corresponding to the penetration of the anchor cable 3, and the anchor cable 3 is connected to the pad 6 through the clip 13. The number of threaded columns 11 and nuts 12 are both several groups and are distributed in a ring array.

[0036] The inner tube 41 is coaxially arranged with the outer tube 1 , the supplementary grouting pipe 42 is fixedly connected to the inner wall of the inner tube 41 , and the supplementary grouting pipe 42 penetrates from the inside of the inner tube 41 to the outside of the inner tube 41 .

[0037] The maximum distance between the jacking head 44 and the rotating tube 43 is greater than the minimum distance between the rotating tube 43 and the supplementary grouting tube 42 , and the jacking head 44 is made of rubber.

[0038] One end of the supplementary grouting pipe 42 penetrates through the inner pipe 41 and the side wall of the outer casing 1 and then extends out of the outer casing 1 .

[0039] The pad 6 is in a truncated cone shape, and the pad 6 and the end pad 2 are both made of steel.

[0040] A method for using a high-slope rock mass slope active reinforcement system comprises the following steps:

[0041] S1: During the grouting process, the drill bit of the drilling rig can be removed, the adapter 45 can be fixedly connected to the drilling rig, the adapter 45 can be connected to the rotating tube 43 through bolts and nuts, the drilling rig drives the adapter 45 to rotate, and the rotating tube 43 can be driven to rotate through the adapter 45, so that the rotating tube 43 can rotate with it.

[0042] S2: The supplementary grouting pipe 42 is hit by the jacking head 44, so that the supplementary grouting pipe 42 and the inner pipe 41 vibrate, and the vibration is transmitted to the grouting material poured into the outer casing 1, so that the grouting material can be vibrated and compacted, and no bubbles are generated inside the grouting material. At the same time, a distance of the connector 45 and the rotating tube 43 is stretched outward, so that the distance at which the jacking head 44 hits the supplementary grouting pipe 42 can be adjusted, and the vibration position can be adjusted according to the different grouting positions, so that bubbles will not be generated in the grouting, and the injected paddle body can be formed more compact, so that the reinforcement effect of the rock slope is stronger and more stable.

[0043] When in use, the grouting material inside the outer sleeve 1 can be vibrated, thereby greatly reducing the generation of bubbles after grouting inside the outer sleeve 1, thereby making the overall reinforcement effect of the entire reinforcement system better, and there will be no deterioration in the reinforcement of some reinforced components due to poor grouting effect. This embodiment is suitable for the setting of a single reinforcement system.

[0044] Embodiment 2:

[0045] like Figures 1 to 7 As shown, an active reinforcement system for high-slope rock slope includes an outer casing 1, an end pad 2, an anchor cable 3, a vibration structure 4, a connecting structure 5 and a pad 6. Except for the connecting structure 5, other structures are arranged in two groups, and the two groups of reinforcement systems are connected by the connecting structure 5. One end of the outer casing 1 is connected to one side of the end pad 2, and the anchor cable 3 and the vibration structure 4 are arranged inside the outer casing 1. One end of the anchor cable 3 passes through the end pad 2 and the pad 6 in sequence. The connecting structure 5 is connected to the end pad 2, and the pad 6 is connected to the other side of the end pad 2. The number of anchor cables 3 is three groups and they are distributed in a ring array. The three groups of anchor cables 3 respectively pass through the stop ring 8.

[0046] The vibration structure 4 includes an inner tube 41 movably arranged inside the outer sleeve 1, the inner wall surface of the inner tube 41 is fixedly connected to the supplementary grouting pipe 42, the axis of the inner tube 41 is movably connected to a rotating tube 43, the outer surface of the rotating tube 43 is fixedly connected to a jacking head 44, and one end of the rotating tube 43 passes through the end pad 2 and the pad 6 and then movably connects to a connector 45.

[0047] A guide cap 7 is arranged inside the outer sleeve 1, one end of the anchor cable 3 is fixedly connected to the guide cap 7, a grouting stop ring 8 is arranged on the anchor cable 3, the anchor cable 3 penetrates through the grouting stop ring 8 and is connected, and the surface of the anchor cable 3 is respectively fixedly connected to a primary grouting pipe 9 and a secondary grouting pipe 10.

[0048] One side of the end pad 2 is fixedly connected to a threaded column 11, one end of the threaded column 11 passes through the pad 6 and is threadedly connected to a nut 12, a clip 13 is provided on the inner side of the pad 6 corresponding to the penetration point of the anchor cable 3, and the anchor cable 3 is connected to the pad 6 via the clip 13.

[0049] The connection structure 5 includes a connection column 51 fixedly connected to the end pad 2, a threaded portion 52 is provided on the outer surface of the connection column 51, the connection column 51 is threadedly connected to a limiting sleeve 53 through the threaded portion 52, one end of the limiting sleeve 53 is fixedly connected to a protrusion 55, and a mesh 54 is provided on the connection column 51.

[0050] The inner tube 41 is coaxially arranged with the outer tube 1 , the supplementary grouting pipe 42 is fixedly connected to the inner wall of the inner tube 41 , and the supplementary grouting pipe 42 penetrates from the inside of the inner tube 41 to the outside of the inner tube 41 .

[0051] The maximum distance between the jacking head 44 and the rotating tube 43 is greater than the minimum distance between the rotating tube 43 and the supplementary grouting tube 42 , and the jacking head 44 is made of rubber.

[0052] One end of the supplementary grouting pipe 42 penetrates through the inner pipe 41 and the side wall of the outer casing 1 and then extends out of the outer casing 1 .

[0053] The pad 6 is in a truncated cone shape, and the pad 6 and the end pad 2 are both made of steel.

[0054] A method for using a high-slope rock mass slope active reinforcement system comprises the following steps:

[0055] S1: During the grouting process, the drill bit of the drilling rig can be removed, the adapter 45 can be fixedly connected to the drilling rig, the adapter 45 can be connected to the rotating tube 43 through bolts and nuts, the drilling rig drives the adapter 45 to rotate, and the rotating tube 43 can be driven to rotate through the adapter 45, so that the rotating tube 43 can rotate with it.

[0056] S2: The jacking head 44 beats the supplementary grouting pipe 42, so that the supplementary grouting pipe 42 and the inner pipe 41 vibrate, and the vibration is transmitted to the grouting material poured into the outer casing 1, so that the grouting material can be vibrated and compacted, and no bubbles are generated inside the grouting material. At the same time, the distance of the connector 45 and the rotating pipe 43 is stretched outward, so that the distance between the jacking head 44 and the supplementary grouting pipe 42 can be adjusted, and the vibration position can be adjusted according to the different grouting positions, so that bubbles will not be generated in the grouting, and the injected paddle body can be more compact after forming, so that the reinforcement effect of the rock slope is stronger and more stable in the end;

[0057] S3: The steel mesh 54 is embedded in the concrete layer for fixation, and the connecting column 51 is inserted into the concrete layer. The connecting column 51 on the end pad 2 is passed through the gap of the steel mesh 54, and the limiting sleeve 53 is put on the outer surface of the connecting column 51 and rotated and tightened, so that the steel mesh 54 is fixedly connected between the two adjacent groups of end pads 2, and then the connection between the two adjacent groups of outer sleeves 1 can be completed, which can make the final reinforcement system more stable. After one group of outer sleeves 1 falls off, the adjacent outer sleeves 1 cooperate with the steel mesh 54 to make this group of outer sleeves 1 not easy to loosen and fall off, which is beneficial to maintaining the stability of the overall rock layer and achieving better reinforcement effect.

[0058] In embodiments 1 and 2, since the inner tube 41 is closed inside, the inner tube 41 can be made of a material with high hardness and toughness, preferably the same material as the end pad 2. The material of the inner tube 41 can also be adjusted according to the conditions of the installation environment to maintain the overall reinforcement performance of the outer sleeve 1. At the same time, the drill bit of the drilling rig can be replaced with a connector 45. The connection principle between the connector 45 and the output end of the drilling rig is the same as that of the drill bit. Therefore, it will not be repeated in the present invention. Figure 5 A in the figure is a concrete layer. The present application can set different numbers of reinforcement systems according to actual conditions and connect them through the connection structure 5.

Claims

1. An active reinforcement system for high rock slopes, characterized in that: The invention comprises an outer sleeve (1), an end pad (2), an anchor cable (3), a vibration structure (4), a connection structure (5) and a pad (6); one end of the outer sleeve (1) is connected to one side of the end pad (2); the anchor cable (3) and the vibration structure (4) are arranged inside the outer sleeve (1); one end of the anchor cable (3) passes through the end pad (2) and the pad (6) in sequence; the connection structure (5) is connected to the end pad (2); and the pad (6) is connected to the other side of the end pad (2).

2. The high-slope rock mass slope active reinforcement system according to claim 1, characterized in that: The vibration structure (4) comprises an inner tube (41) movably arranged inside the outer sleeve (1); the inner wall surface of the inner tube (41) is fixedly connected to a supplementary grouting tube (42); the axis of the inner tube (41) is movably connected to a rotating tube (43); the outer surface of the rotating tube (43) is fixedly connected to a jacking head (44); one end of the rotating tube (43) passes through the end pad (2) and the pad (6) and is movably connected to a joint (45).

3. The high slope rock mass slope active reinforcement system according to claim 1, characterized in that: A guide cap (7) is arranged inside the outer sleeve (1), one end of the anchor cable (3) is fixedly connected to the guide cap (7), a grouting stop ring (8) is arranged on the anchor cable (3), the anchor cable (3) passes through the grouting stop ring (8) for connection, and the surface of the anchor cable (3) is respectively fixedly connected to a primary grouting pipe (9) and a secondary grouting pipe (10).

4. The high-slope rock mass slope active reinforcement system according to claim 1, characterized in that: One side of the end pad (2) is fixedly connected to a threaded column (11), one end of the threaded column (11) passes through the pad (6) and is threadedly connected to a nut (12), a clip (13) is provided on the inner side of the pad (6) corresponding to the point where the anchor cable (3) passes through, and the anchor cable (3) is connected to the pad (6) via the clip (13).

5. The high-slope rock mass slope active reinforcement system according to claim 1, characterized in that: The connection structure (5) comprises a connection column (51) fixedly connected to the end pad (2); a threaded portion (52) is provided on the outer surface of the connection column (51); the connection column (51) is threadedly connected to a limiting sleeve (53) via the threaded portion (52); one end of the limiting sleeve (53) is fixedly connected to a protruding portion (55); and a mesh sheet (54) is provided on the connection column (51).

6. The high-slope rock mass slope active reinforcement system according to claim 2, characterized in that: The inner tube (41) is coaxially arranged with the outer tube (1), the supplementary grouting pipe (42) is fixedly connected to the inner wall of the inner tube (41), and the supplementary grouting pipe (42) passes through from the inside of the inner tube (41) to the outside of the inner tube (41).

7. The high-slope rock mass slope active reinforcement system according to claim 2, characterized in that: The maximum distance between the jacking head (44) and the rotating tube (43) is greater than the minimum distance between the rotating tube (43) and the supplementary grouting tube (42), and the jacking head (44) is made of rubber.

8. The high-slope rock mass slope active reinforcement system according to claim 2, characterized in that: One end of the supplementary grouting pipe (42) penetrates the inner pipe (41) and the side wall of the outer sleeve (1) and then extends out of the outer sleeve (1).

9. The high-slope rock mass slope active reinforcement system according to claim 1, characterized in that: The pad (6) is in a truncated cone shape, and the pad (6) and the end pad (2) are both made of steel.

10. An active reinforcement system for high rock slopes and a method for using the same as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1: During the grouting process, the adapter (45) is fixedly connected to the drilling machine, and the adapter (45) is connected to the rotating tube (43). The drilling machine drives the adapter (45) to rotate, and the rotating tube 43 is driven to rotate via the adapter (45), so that the rotating tube (43) can rotate accordingly. S2: The jacking head (44) beats the supplementary grouting pipe (42), so that the supplementary grouting pipe (42) and the inner pipe (41) vibrate, and the vibration is transmitted to the grouting material poured into the outer sleeve (1), and at the same time, the distance of the connector (45) and the rotating pipe (43) is stretched outward, so that the distance of the jacking head (44) beating the supplementary grouting pipe (42) is adjusted, and the vibration position is adjusted, which can be adjusted according to different grouting positions; S3: The steel mesh (54) is embedded in the concrete layer for fixing, and the connecting column 51 is inserted into the concrete layer. The connecting column (51) on the end pad (2) is passed through the gap of the mesh (54), and the limiting sleeve (53) is sleeved on the outer surface of the connecting column (51) and rotated and tightened, so that the mesh (54) is fixedly connected between two adjacent groups of end pads (2), thereby completing the connection between the two adjacent groups of outer sleeves (1).

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