A landslide structure reinforced by deep grouting for landslide treatment

Abstract

The present invention discloses a deep grouting and landslide reinforcement structure for landslide treatment, which relates to the technical field of landslide reinforcement. The structure comprises a rod body, the lower end of which is fixedly connected to a drill bit for assisting drilling thereof via an auxiliary pipe, and the outer side of the rod body is provided with drainage holes for discharging slurry outwardly arranged at equal vertical intervals, the interior of the rod body is rotatably connected to an adjustment shaft, and the lower end of the adjustment shaft is fixedly connected to a threaded rod, and an adjustment mechanism is provided on the upper outer side of the adjustment shaft and the interior of the rod body. The deep grouting and landslide reinforcement structure for landslide treatment can improve the efficiency of the external device driving the rod body to drill by using the drill bit provided on the outer side of the rod body, and can make the extrusion rod squeeze the first airbag by rotating the linkage rod, causing the sealing airbag to expand. The volume of the expanded sealing airbag increases, thereby filling the gap between the side of the rod body and the slope body, thereby preventing the slurry from seeping outward from the gap during the grouting operation.

Description

Technical Field

[0001] The invention relates to the technical field of landslide reinforcement, in particular to a deep grouting reinforcement landslide structure for landslide body treatment. Background Art

[0002] Landslide is a common geological disaster, which refers to the phenomenon that the rock and soil on the slope slides down the slope as a whole or dispersedly along a certain weak surface or weak zone under the action of gravity. The landslide body is composed of a set of loose accumulations with disordered structure, consisting of blocks of stone and gravel soil, which are relatively densely stacked. The block components are mainly chlorite schist, which is easily softened when exposed to water. When water supply or tunnel construction is carried out in some areas, after the slope is excavated, the slope forms a steep slope and local bedrock is exposed, which destroys the stability of the slope and also causes landslides. After the landslide occurs, it will cause certain harm to the environment, property and personnel safety. Therefore, the slope needs to be reinforced.

[0003] In order to overcome the above-mentioned defects, the prior art 1 (a Chinese patent with announcement number CN220394584U and announcement date 2024-01-26) is a temporary slope reinforcement system during graded excavation, comprising a temporary slope layer and a temporary grouting anchor, wherein the temporary slope layer is formed by spraying concrete on the slope, and the thickness of the temporary slope layer is 5 cm to 20 cm; the grouting anchor comprises a reinforcement anchor head, a reinforcement steel pipe and a sealing ring, the reinforcement steel pipe is detachably arranged on the reinforcement anchor head, two mounting grooves are arranged on the outer wall of the reinforcement steel pipe, two sealing rings are arranged on the mounting grooves, a first grouting hole is provided on the outer wall of the reinforcement steel pipe, the first grouting hole is arranged below the lowest sealing ring, a second grouting hole is provided on the outer wall of the reinforcement steel pipe, the second grouting hole is located between the two sealing rings, and the interior of the second grouting hole can be connected to a grouting pipe, thereby solving the technical problem of how to temporarily reinforce and support the slope during slope excavation. There is also prior art 2 (Chinese patent with announcement number CN212614514U and announcement date of 2021-02-26), a drill bit for grouting loose layer slopes in open-pit mines, comprising a cylindrical carcass and a plurality of alloy composite sheets at least partially protrudingly fixed to the end face of the first end of the carcass, the alloy composite sheets being arranged on the carcass at intervals along the circumference of the carcass, the first end of the carcass also being provided with a through portion penetrating its side wall, the through portion being located between two adjacent alloy composite sheets. The application also discloses a grouting device for grouting loose layer slopes in open-pit mines, the special drill bit has a simple structure and low cost, and has a through portion that can serve as a drill bit cooling groove and a slag flow channel. The grouting process is completed by detachably assembling the drill bit and the grouting pipe and driving the grouting pipe to drill in. After the grouting is completed, no secondary recovery is required, which can not only ensure drilling efficiency and drilling effect, but also achieve low-cost grouting.

[0004] Although the existing technology has solved the problem of how to temporarily reinforce and support the slope during excavation, the rod body cannot be stably inserted into the working position during the grouting process. When the grouting operation is carried out through the rod body, a gap is generated between the rod body and the grouting point due to shaking. When the grouting operation is close to the surface, the slurry may seep out from the side of the rod body, thereby affecting the grouting effect.

[0005] Therefore, we proposed a method of treating landslide bodies by deep grouting to reinforce the landslide structure in order to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a deep grouting reinforcement landslide structure for landslide treatment, so as to solve the problem in the current market proposed by the above-mentioned background technology that during the grouting process, the rod body cannot be stably inserted into the working position. When the grouting operation is carried out through the rod body, a gap is generated between the rod body and the grouting point due to shaking. When the grouting operation is close to the surface position, the slurry may seep outward from the side of the rod body, thereby affecting the grouting effect.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a deep grouting reinforcement landslide structure for landslide treatment, comprising a rod body, the lower end of the rod body is fixedly connected to a drill bit for assisting drilling thereof through an auxiliary pipe, and the outer side of the rod body is provided with drainage holes for discharging slurry outwards arranged vertically and equidistantly, the interior of the rod body is rotatably connected to an adjustment shaft, and the lower end of the adjustment shaft is fixedly connected to a threaded rod, an adjustment mechanism is provided on the outer side of the upper part of the adjustment shaft and the interior of the rod body, the adjustment mechanism realizes sealing treatment between the rod body and the outer slope by the expansion action of the sealing airbag included therein, a reminder mechanism is provided between the inner wall and the end of the rod body, the reminder mechanism realizes reminder of the grouting height by the position movement of the reminder ball included therein

[0008] Preferably, a sliding groove is provided on the outer side of the upper part of the rod body, and a linkage rod is nested inside the sliding groove, and the outer end of the linkage rod is fixedly connected to an outer protective ring. At the same time, a through groove is vertically provided on the outer side of the outer protective ring, and the inner end of the linkage rod is fixedly connected to the outer side of the adjusting shaft.

[0009] Preferably, the inner wall of the outer protective ring is tightly fitted to the outer side of the rod body, and the number of through grooves matches the number of rows of drainage holes. The linkage rod forms a sliding structure through the adjustment shaft and the sliding groove.

[0010] Preferably, the adjustment mechanism includes a first airbag, which is fixedly connected to the inner wall of the rod body, the sealing airbag is fixedly connected to the outer side of the rod body, and a connecting tube is provided between the sealing airbag and the first airbag, and the side of the linkage rod is fixedly connected to an extrusion rod.

[0011] Preferably, the extrusion rod is located on the side of the first airbag, and the end of the extrusion rod is arranged in an arc-shaped structure.

[0012] Preferably, the lower end of the threaded rod is rotatably arranged inside the auxiliary pipe, and the outer side of the threaded rod is threadedly connected to an adjusting disk, and the lower surface of the adjusting disk is hingedly provided with an adjusting rod, and the lower side of the inner part of the auxiliary pipe is hingedly provided with a limiting rod, and the end of the adjusting rod is hinged to the center of the limiting rod.

[0013] Preferably, the threaded rod forms a rotating structure with the auxiliary pipe through the adjusting shaft, the auxiliary pipe side is penetrated by an auxiliary groove corresponding to the position of the limiting rod, and the limiting rod forms a rotating structure with the auxiliary pipe through the adjusting rod.

[0014] Preferably, the reminder mechanism includes a floating plate nested on the outside of the adjusting shaft, a fixed rod is rotatably connected to the center of the inner wall of the rod body, and a contact plate is fixedly provided on the outside of the fixed rod, and a traction rope is wrapped around the side of the fixed rod, the upper end of the rod body is fixedly connected to the top plate, and a pull rod is nested on the top plate, and the lower end of the pull rod is fixedly connected to the other end of the traction rope, the reminder ball is fixedly connected to the upper end of the pull rod, and a reset spring is fixedly connected between the lower end of the pull rod and the lower surface of the top plate.

[0015] Preferably, the end side of the resistance plate is arranged in an arc-shaped structure, and the resistance plate drives the fixed rod and the rod body to form a rotating structure through the resistance of the floating disk, and the pull rod forms an elastic structure with the top plate through the reset spring.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The drill bit arranged on the outside of the rod body can improve the efficiency of the external device driving the rod body to drill, and the outer protective ring can block the drainage hole opened on the side of the rod body during drilling, thereby preventing part of the soil from entering the rod body through the drainage hole during drilling, causing blockage inside the rod body and affecting subsequent grouting operations.

[0018] After the rod body is drilled, the limit rod can be rotated outward by rotating the adjustment shaft. The two sets of limit rods are arranged in a "V" shape. The limit rods can increase the stability of the rod body inserted into the landslide, thereby preventing the rod body from loosening after insertion.

[0019] When the outer protective ring is driven to rotate by the rotation of the adjustment shaft, its through groove corresponds to the drainage hole opened on the rod body. At this time, the drainage hole is not blocked. During the subsequent grouting operation, the slurry can be discharged outward through the drainage hole.

[0020] By rotating the linkage rod, the extrusion rod can squeeze the first airbag, causing the sealing airbag to expand. The volume of the expanded sealing airbag increases, thereby filling the gap between the side of the rod body and the slope, avoiding the phenomenon of slurry seeping outward from the gap during grouting operations.

[0021] During grouting, the staff can observe the position of the prompt ball to judge the grouting position. When the prompt ball pops up, the staff can change the grouting pressure, so that the device can grout in layers according to the depth of the sliding body. Low-pressure penetration grouting is used in shallow areas, and high-pressure splitting grouting is used in deep areas. Different grouting methods can significantly improve soil strength, reduce deformation, and fill cracks. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a schematic diagram of a three-dimensional cross-sectional structure of the present invention;

[0024] Figure 3 For the present invention Figure 2 A in the middle is an enlarged structural diagram;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the adjusting rod of the present invention;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the limiting rod of the present invention when it is unfolded;

[0027] Figure 6 This is a schematic diagram of the three-dimensional cross-sectional structure of the outer protective ring of the present invention;

[0028] Figure 7 This is a schematic diagram of the three-dimensional structure of the linkage rod of the present invention;

[0029] Figure 8 This is a schematic diagram of the three-dimensional structure of the sealed airbag of the present invention;

[0030] Figure 9 This is a schematic diagram of the three-dimensional structure of the contact plate of the present invention;

[0031] Figure 10 This is a schematic diagram of the three-dimensional structure of the pull rod of the present invention;

[0032] Figure 11 This is a schematic diagram of the three-dimensional structure of the floating plate after it moves upward.

[0033] In the figure: 1. Rod body; 2. Drill bit; 3. Auxiliary pipeline; 4. Outer protective ring; 5. Top plate; 6. Adjusting shaft; 7. Drain hole; 8. Floating plate; 9. First airbag; 10. Connecting pipe; 11. Sealing airbag; 12. Linking rod; 13. Slide groove; 14. Adjusting plate; 15. Threaded rod; 16. Limiting rod; 17. Adjusting rod; 18. Auxiliary groove; 19. Through groove; 20. Extrusion rod; 21. Fixed rod; 22. Pull rope; 23. Return spring; 24. Pull rod; 25. Prompt ball; 26. Contact plate. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Example 1: Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 The technical solution shown in the figure, the present invention provides the following technical solutions: a deep grouting reinforcement landslide structure for landslide treatment, discloses a limit rod 16, when the two groups of limit rods 16 are flipped outward, the stability of the rod body 1 inserted into the landslide can be increased: the lower end of the rod body 1 is fixedly connected to a drill bit 2 for auxiliary drilling through an auxiliary pipe 3, and the outer side of the rod body 1 is vertically equidistantly arranged with drainage holes 7 for slurry discharge outward, a slide groove 13 is provided on the outer side of the upper part of the rod body 1, and the inner part of the slide groove 13 is nested with a linkage rod 12, and the outer end of the linkage rod 12 is fixedly connected to the outer protective ring 4, and the outer side of the outer protective ring 4 is vertically provided with a through groove 19, the inner end of the linkage rod 12 is fixedly connected to the outer side of the adjusting shaft 6, and the inner side of the outer protective ring 4 is fixedly provided with a through groove 19. The wall fits tightly with the outer side of the rod body 1, and the number of through grooves 19 matches the number of columns of the discharge holes 7. The linkage rod 12 forms a sliding structure with the slide groove 13 through the adjusting shaft 6. The lower end of the threaded rod 15 is rotatably set inside the auxiliary pipe 3, and the outer side of the threaded rod 15 is threadedly connected to the adjusting disk 14, and the lower surface of the adjusting disk 14 is hingedly provided with an adjusting rod 17. A limiting plug 16 is hingedly provided on the lower side of the interior of the auxiliary pipe 3, and the end of the adjusting rod 17 is hinged to the center of the limiting plug 16. The threaded rod 15 forms a rotating structure with the auxiliary pipe 3 through the adjusting shaft 6. An auxiliary groove 18 corresponding to the position of the limiting plug 16 is opened on the side of the auxiliary pipe 3, and the limiting plug 16 forms a rotating structure with the auxiliary pipe 3 through the adjusting rod 17.

[0036] The rod body 1 is drilled to the slope position where grouting is required through an external device. The rod body 1 can improve the drilling efficiency through the drill bit 2 arranged on the outside of the rod body 1. At the same time, an outer protective ring 4 is provided on the outside of the rod body 1. The outer protective ring 4 can block the drainage hole 7 opened on the side of the rod body 1 during drilling, thereby preventing part of the soil from entering the inside of the rod body 1 through the drainage hole 7 during drilling, thereby preventing the inside of the rod body 1 from being blocked and affecting the subsequent grouting operation. When the adjusting shaft 6 rotates, the linkage rod 12 slides along the slide groove 13 under the driving action of the adjusting shaft 6, thereby stably driving the outer protective ring 4 to rotate. When the outer protective ring 4 rotates, the through groove 19 opened therein can correspond one to one with the drainage hole 7 opened on the rod body 1. At this time, the drainage hole 7 is not blocked, and the slurry can be discharged outward through the drainage hole 7 during subsequent grouting operations.

[0037] After the rod body 1 is drilled, the adjusting shaft 6 is rotated. At this time, the adjusting shaft 6 can synchronously drive the threaded rod 15 set below to rotate. The adjusting disk 14 will move downward under the action of the threaded connection with the threaded rod 15, thereby synchronously driving the adjusting rod 17 to move downward. The downward adjusting rod 17 will conflict with the limiting plug 16, thereby synchronously causing the limiting plug 16 to rotate outward. At this time, the rotated end of the limiting plug 16 will extend to the outside of the auxiliary groove 18. The two groups of limiting plugs 16 are arranged in a "V" shape. The limiting plug 16 can increase the stability of the insertion of the rod body 1 in the landslide, thereby preventing the rod body 1 from loosening after insertion.

[0038] Example 2: Figure 2 、 Figure 3 、 Figure 7 and Figure 8 The technical solution shown in the present invention provides the following technical solution: a deep grouting reinforcement landslide structure for landslide treatment, discloses an adjustment mechanism, and realizes the sealing treatment between the rod body 1 and the outer slope through a sealing mechanism: the inside of the rod body 1 is rotatably connected with an adjustment shaft 6, and the lower end of the adjustment shaft 6 is fixedly connected with a threaded rod 15, and an adjustment mechanism is provided on the upper outer side of the adjustment shaft 6 and the inside of the rod body 1. The adjustment mechanism realizes the sealing treatment between the rod body 1 and the outer slope through the expansion action of the sealing airbag 11 included therein, and the adjustment mechanism includes a first airbag 9, the first airbag 9 is fixedly connected to the inner wall of the rod body 1, the sealing airbag 11 is fixedly connected to the outer side of the rod body 1, and a connecting pipe 10 is provided between the sealing airbag 11 and the first airbag 9, and the side of the linkage rod 12 is fixedly connected with an extrusion rod 20, the extrusion rod 20 is located on the side of the first airbag 9, and the end of the extrusion rod 20 is arranged in an arc-shaped structure.

[0039] During the rotation of the linkage rod 12, the extrusion rod 20 arranged on the side can be driven to rotate synchronously. When the extrusion rod 20 is rotating, its end will squeeze the first airbag 9, so that the first airbag 9 transfers the gas stored inside it to the inside of the sealing airbag 11 through the connecting tube 10, causing the sealing airbag 11 to expand. The volume of the expanded sealing airbag 11 increases, thereby filling the gap between the side of the rod body 1 and the slope, avoiding the phenomenon of slurry back seeping out from the gap during grouting operation.

[0040] Example 3: Figure 1 、 Figure 9 、 Figure 10 and Figure 11 The technical solution shown in the figure, the present invention provides the following technical solutions: a landslide body treatment for deep grouting reinforcement landslide structure, discloses a reminder mechanism, through which the staff can be reminded to change the grouting pressure: a reminder mechanism is provided between the inner wall and the end of the rod body 1, and the reminder mechanism realizes the reminder of the grouting height by the position movement of the reminder ball 25 included therein, and the reminder mechanism includes a floating plate 8 nested on the outside of the adjustment shaft 6, a fixed rod 21 is rotatably connected at the center of the inner wall of the rod body 1, and a contact plate 26 is fixedly provided on the outside of the fixed rod 21, and the fixed rod 2 1 is wrapped with a traction rope 22, the upper end of the rod body 1 is fixedly connected to the top plate 5, and the top plate 5 is nested with a pull rod 24, and the lower end of the pull rod 24 is fixedly connected to the other end of the traction rope 22, the prompt ball 25 is fixedly connected to the upper end of the pull rod 24, and a return spring 23 is fixedly connected between the lower end of the pull rod 24 and the lower surface of the top plate 5, the end side of the resistance plate 26 is arranged in an arc-shaped structure, and the resistance plate 26 drives the fixed rod 21 and the rod body 1 to form a rotating structure through the resistance action of the floating disk 8, and the pull rod 24 forms an elastic structure with the top plate 5 through the return spring 23.

[0041] During grouting, the slurry liquid level gradually rises along the inside of the rod body 1. At this time, the slurry will drive the floating plate 8 to rise synchronously. When the floating plate 8 rises to a certain position, it will conflict with the contact plate 26, so that the contact plate 26 drives the fixed rod 21 to rotate. The rotating fixed rod 21 will release the traction rope 22 it has wound up. At this time, the pull rod 24 is not pulled by the traction rope 22. Driven by the elastic force of the reset spring 23, the pull rod 24 will drive the prompt ball 25 to pop up. The staff can observe the position of the prompt ball 25 to judge the position of the grouting. When the prompt ball 25 pops up, the staff can change the grouting pressure, so that the device can be layered grouting according to the depth of the sliding body. Low-pressure penetration grouting is used in the shallow part, and high-pressure splitting grouting is used in the deep part. Different grouting methods can significantly improve soil strength, reduce deformation, and fill cracks.

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A landslide structure for deep grouting reinforcement for landslide treatment, comprising a rod body (1), wherein the lower end of the rod body (1) is fixedly connected to a drill bit (2) for assisting drilling thereof via an auxiliary pipe (3), and drainage holes (7) for discharging slurry are arranged vertically and equidistantly on the outer side of the rod body (1), characterized in that: The rod body (1) is internally connected to an adjusting shaft (6) for rotation, and the lower end of the adjusting shaft (6) is fixedly connected to a threaded rod (15). An adjusting mechanism is provided between the outer side of the upper portion of the adjusting shaft (6) and the interior of the rod body (1). The adjusting mechanism realizes a sealing process between the rod body (1) and the outer side slope by the expansion action of the sealing airbag (11) included therein. A reminder mechanism is provided between the inner wall and the end of the rod body (1). The reminder mechanism realizes a reminder of the grouting height by the position movement of the reminder ball (25) included therein. The reminder mechanism includes a floating plate (8) nested on the outer side of the adjusting shaft (6). ), a fixed rod (21) is rotatably connected to the center of the inner wall of the rod body (1), and a contact plate (26) is fixedly provided on the outer side of the fixed rod (21), and a traction rope (22) is wound around the side of the fixed rod (21), the upper end of the rod body (1) is fixedly connected to the top plate (5), and a pull rod (24) is nested and connected on the top plate (5), and the lower end of the pull rod (24) is fixedly connected to the other end of the traction rope (22), the prompt ball (25) is fixedly connected to the upper end of the pull rod (24), and a return spring (23) is fixedly connected between the lower end of the pull rod (24) and the lower surface of the top plate (5).

2. The deep grouting reinforcement landslide structure for landslide treatment according to claim 1, characterized in that: A sliding groove (13) is provided on the outer side of the upper portion of the rod body (1), and a linkage rod (12) is nested and connected inside the sliding groove (13), and the outer end of the linkage rod (12) is fixedly connected to the outer protective ring (4), while a through groove (19) is vertically provided on the outer side of the outer protective ring (4), and the inner end of the linkage rod (12) is fixedly connected to the outer side of the adjustment shaft (6).

3. The deep grouting reinforcement landslide structure for landslide treatment according to claim 2, characterized in that: The inner wall of the outer protective ring (4) is tightly fitted to the outer side of the rod body (1), and the number of through grooves (19) matches the number of rows of discharge holes (7). The linkage rod (12) forms a sliding structure through the adjustment shaft (6) and the slide groove (13).

4. The deep grouting reinforcement landslide structure for landslide treatment according to claim 2, characterized in that: The regulating mechanism comprises a first airbag (9), the first airbag (9) being fixedly connected to the inner wall of the rod body (1), the sealing airbag (11) being fixedly connected to the outer side of the rod body (1), and a connecting pipe (10) being provided between the sealing airbag (11) and the first airbag (9), and an extrusion rod (20) being fixedly connected to the side of the linkage rod (12).

5. The deep grouting reinforcement landslide structure for landslide treatment according to claim 4, characterized in that: The extrusion rod (20) is located on the side of the first airbag (9), and the end of the extrusion rod (20) is arranged in an arc-shaped structure.

6. The deep grouting reinforcement landslide structure for landslide treatment according to claim 1, characterized in that: The lower end of the threaded rod (15) is rotatably arranged inside the auxiliary pipe (3), and the outer side of the threaded rod (15) is threadedly connected to an adjustment disk (14), and the lower surface of the adjustment disk (14) is hingedly provided with an adjustment rod (17), and the lower side of the interior of the auxiliary pipe (3) is hingedly provided with a limit rod (16), and the end of the adjustment rod (17) is hingedly connected to the center of the limit rod (16).

7. The deep grouting reinforcement landslide structure for landslide treatment according to claim 6, characterized in that: The threaded rod (15) forms a rotating structure with the auxiliary pipe (3) through the adjusting shaft (6); an auxiliary groove (18) corresponding to the position of the limiting rod (16) is provided through the side of the auxiliary pipe (3); and the limiting rod (16) forms a rotating structure with the auxiliary pipe (3) through the adjusting rod (17).

8. The deep grouting reinforcement landslide structure for landslide treatment according to claim 1, characterized in that: The end side of the contact plate (26) is arranged in an arc-shaped structure, and the contact plate (26) drives the fixed rod (21) and the rod body (1) to form a rotating structure through the contact effect of the floating plate (8), and the pull rod (24) forms an elastic structure with the top plate (5) through the return spring (23).

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