Socketed pile grouting pile casing structure
By designing the rock-embedded pile grouting casing structure and utilizing the coordination of the grouting pipe and movable ring, the problems of curling and grouting inconvenience of traditional rock-embedded piles under complex geological conditions are solved, achieving efficient grouting and material saving.
Patent Information
- Application Number
- CN202422723963.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-08
AI Technical Summary
Traditional implanted rock-socketed piles are prone to curling and tilting when encountering isolated rocks and inclined rock surfaces. The grouting process is inconvenient, resulting in material waste and damage to the foundation piles.
A rock-embedded pile grouting casing structure was designed. The grouting pipe drives the movable ring to move upward, pushing the slurry out of the opening, and the movable seat rises to achieve sealing, avoid slurry accumulation, and provide power for later removal.
It effectively reduces the risk of casing curling and tilting, improves grouting efficiency, avoids material waste, and ensures the integrity of foundation piles.
Smart Images

Figure CN223386639U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of grouting casing equipment, in particular to a rock-embedded pile grouting casing structure. Background Art
[0002] The casing of traditional implanted rock-socketed piles is generally driven in. In the case of isolated rocks and geological conditions with large rock surface inclination, there is a risk of curling and tilting of the casing. Traditional implanted rock-socketed piles are grouting through grouting pipes welded inside the pile and openings in the pile body. Each foundation needs to be equipped with a grouting system, which not only causes certain damage to the foundation piles but also results in material waste.
[0003] According to the patent document with the existing publication number CN216474981U, a grouting casing structure for offshore rock-embedded piles is disclosed, which includes a grouting casing body, which is a cylindrical tube with openings at both ends. A reference line from 0° to 180° is provided on the grouting casing body. Two vertical grouting pipelines are arranged along the outer wall of the grouting casing body at positions of 45° and 225° with the reference line as the starting point. The grouting pipelines are connected to the outer wall of the grouting casing body from the grouting casing body. The top of the casing body is arranged all the way to the bottom of the grouting casing body. When in use, this technical solution utilizes the grouting casing for rock embedment construction. The grouting casing sinks as the drilling process progresses. Compared with the traditional driven casing, it reduces the investment in construction equipment and has a short cycle. At the same time, the grouting casing sinks as the drilling process progresses, reducing the risk of curling and tilting of the grouting casing. Regarding the above technical solution, although this solution reduces the curling of the casing, it is unable to quickly discharge the slurry outwards during the later grouting, which is inconvenient when used. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a rock-embedded pile grouting casing structure to solve the problems raised in the above-mentioned background technology. The present invention has a novel structure. When in use, the grouting pipe drives the movable ring to move upward during grouting. When the movable ring moves upward, it pushes the slurry to be sprayed out from the opening. The sprayed slurry pushes the movable seat to rise. After the movable seat rises, the slurry is sprayed from the inside. When the opening is not in use, the movable ring realizes the shielding and sealing of the opening.
[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solution: a rock-embedded pile grouting casing structure, including a cylinder, a ring seat welded on the side of the cylinder, a support rod welded between the ring seat and the cylinder, a movable seat movably installed at one end of the support rod, a fixing groove is opened on the movable seat, the movable seat is installed on the support rod and the cylinder through the fixing groove, an opening is opened at the top of the cylinder, and a grouting pipe is movably installed inside the opening.
[0006] Furthermore, a fixing seat and a supporting seat are respectively welded and fixed to one end of the cylinder, the fixing seat is installed on the top of the supporting seat, and the movable seat is movably installed on the fixing seat.
[0007] Furthermore, a cavity is provided inside the fixing seat, and an opening is provided on the top of the fixing seat, and the opening is connected to the cavity.
[0008] Furthermore, a movable ring is movably installed inside the cavity, a discharge hole is opened on the movable ring, and the movable ring is fixedly installed on one end of the grouting pipe.
[0009] Furthermore, a mounting hole is provided inside the cylinder, the grouting pipe is movably installed inside the mounting hole, and a limiting groove is provided on the inner wall of the mounting hole.
[0010] Furthermore, a limiting block is movably installed inside the limiting groove, the limiting block is fixed on the grouting pipe, and a reset mechanism is fixed between the limiting block and the limiting groove.
[0011] Furthermore, a sliding groove is opened on the inner wall of the fixed groove, a slider is movably installed inside the sliding groove, a supporting mechanism is fixed between the slider and the sliding groove, and one end of the slider is fixed on the support rod.
[0012] Furthermore, an inclined hole and a lifting hole are opened on the top of the cylinder, and the inclined hole is connected with the lifting hole through.
[0013] Beneficial effects of the utility model:
[0014] 1. A rock-embedded pile grouting casing structure, wherein the grouting pipe drives the movable ring to move upward during grouting, and the movable ring pushes the slurry to be sprayed out from the opening when moving upward. The sprayed slurry pushes the movable seat to rise, and the slurry is sprayed from the inside after the movable seat rises. When the opening is not in use, the movable ring realizes the shielding and sealing of the opening.
[0015] 2. This rock-embedded pile grouting casing structure has a movable ring that squeezes the slurry inside the cavity to prevent the slurry from accumulating inside the cavity. The squeezing of the movable ring provides power for the movement of the slurry. The opening and the inclined hole are equilateral, which facilitates the balanced removal of the cylinder at a later time. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a structural diagram of a rock-embedded pile grouting casing structure of the utility model;
[0017] Figure 2 This is a structural diagram of an opening of a rock-embedded pile grouting casing structure of the utility model;
[0018] Figure 3 This is a schematic diagram of a partial structure of a side cross-section of a fixing seat of a rock-embedded pile grouting casing structure of the utility model;
[0019] In the figure: 1. Cylinder; 2. Ring seat; 3. Support rod; 4. Opening; 5. Grouting pipe; 6. Inclined hole; 7. Movable seat; 8. Fixed seat; 9. Fixed groove; 10. Support seat; 11. Opening; 12. Cavity; 13. Movable ring; 14. Slide; 15. Support mechanism; 16. Discharge hole; 17. Slider; 18. Mounting hole; 19. Limit groove; 20. Limit block; 21. Reset mechanism. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.
[0021] See also Figures 1 to 3 The utility model provides a technical solution: a rock-embedded pile grouting casing structure, comprising a cylinder 1, a ring seat 2 welded on the side of the cylinder 1, a support rod 3 welded between the ring seat 2 and the cylinder 1, one end of the support rod 3 is movably mounted with a movable seat 7, a fixing slot 9 is opened on the movable seat 7, the movable seat 7 is mounted on the support rod 3 and the cylinder 1 through the fixing slot 9, the top of the cylinder 1 is opened with an opening 4, a grouting pipe 5 is movably mounted inside the opening 4, one end of the cylinder 1 is respectively welded and fixed with a fixing seat 8 and a support seat 10, the fixing seat 8 is mounted on the top of the support seat 10, the movable seat 7 is movably mounted on the fixing seat 8, the support rod 3 provides vertical limit for the up and down movement of the movable seat 7, and the support rod 3 provides reinforcement support for the cylinder 1.
[0022] In this embodiment, a cavity 12 is provided inside the fixing seat 8, an opening 11 is provided on the top of the fixing seat 8, the opening 11 is connected to the cavity 12, a movable ring 13 is movably installed inside the cavity 12, a discharge hole 16 is provided on the movable ring 13, the movable ring 13 is fixedly installed at one end of the grouting pipe 5, a mounting hole 18 is provided inside the cylinder 1, the grouting pipe 5 is movably installed inside the mounting hole 18, a limiting groove 19 is provided on the inner wall of the mounting hole 18, and the grouting pipe 5 moves vertically up and down inside the mounting hole 18.
[0023] In this embodiment, a limiting block 20 is movably installed inside the limiting groove 19, and the limiting block 20 is fixed on the grouting pipe 5. A reset mechanism 21 is fixed between the limiting block 20 and the limiting groove 19. A slide groove 14 is provided on the inner wall of the fixed groove 9. A slider 17 is movably installed inside the slide groove 14. A support mechanism 15 is fixed between the slider 17 and the slide groove 14. One end of the slider 17 is fixed on the support rod 3. An inclined hole 6 and a lifting hole are provided on the top of the cylinder 1. The inclined hole 6 is connected with the lifting hole through and through. The support mechanism 15 and the reset mechanism 21 are both spring structures. The support mechanism 15 and the reset mechanism 21 both provide power support for the equipment to return to its original position in the later stage.
[0024] When the device is in use, the bottom of the cylinder 1 is in contact with the ground, the drill bit of the drilling rig is installed inside the cylinder 1, and the cylinder 1 sinks downward from the side as the drill bit drills the hole. After sinking to the depth of the hole, the drill bit is taken out upward, and the steel pipe pile is placed inside the cylinder 1. After the drill bit is taken out upward, the external injection pipe is connected to the grouting pipe 5. Before the cylinder 1 is lowered, the hook is fixed inside the inclined hole 6 to limit and fix the cylinder 1. During the later grouting, the grouting pipe 5 pushes the slurry into the inside of the movable ring 13, and enters the inside of the cavity 12 through the discharge hole 16 on the movable ring 13. The liquid pipe drives the grouting pipe 5 to move upward. When the grouting pipe 5 moves upward, the limit block 20 moves upward to squeeze the reset mechanism 21. The rising movable ring 13 of the grouting pipe 5 squeezes the slurry inside the cavity 12. The slurry is pushed out from the opening 11 under the squeezing, and the slurry pushes the movable seat 7 to move upward. After the movable seat 7 moves upward, it provides space for the discharge of the slurry. After the slurry is discharged, the movable seat 7 moves downward under the push of the supporting mechanism 15. The movable seat 7 blocks and seals the top of the opening 11. While repeatedly discharging, the hoisting equipment slowly lifts the cylinder 1 upward, and while lifting, the slurry is sprayed into the inside of the borehole.
[0025] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.
[0026] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.
Claims
1. A rock-embedded pile grouting casing structure, comprising a casing (1), characterized in that: A ring seat (2) is welded to the side of the cylinder (1), a support rod (3) is welded between the ring seat (2) and the cylinder (1), a movable seat (7) is movably mounted on one end of the support rod (3), a fixing groove (9) is provided on the movable seat (7), the movable seat (7) is mounted on the support rod (3) and the cylinder (1) through the fixing groove (9), an opening (4) is provided at the top of the cylinder (1), and a grouting pipe (5) is movably mounted inside the opening (4).
2. The rock-socketed pile grouting casing structure according to claim 1, characterized in that: A fixed seat (8) and a support seat (10) are respectively welded and fixed to one end of the cylinder (1); the fixed seat (8) is mounted on the top of the support seat (10); and the movable seat (7) is movably mounted on the fixed seat (8).
3. The rock-socketed pile grouting casing structure according to claim 2, characterized in that: A cavity (12) is provided inside the fixing seat (8), an opening (11) is provided on the top of the fixing seat (8), and the opening (11) is connected to the cavity (12).
4. The rock-socketed pile grouting casing structure according to claim 3, characterized in that: A movable ring (13) is movably installed inside the cavity (12), a discharge hole (16) is opened on the movable ring (13), and the movable ring (13) is fixedly installed on one end of the grouting pipe (5).
5. The rock-socketed pile grouting casing structure according to claim 1, characterized in that: A mounting hole (18) is provided inside the cylinder (1), the grouting pipe (5) is movably installed inside the mounting hole (18), and a limiting groove (19) is provided on the inner wall of the mounting hole (18).
6. The rock-socketed pile grouting casing structure according to claim 5, characterized in that: A limiting block (20) is movably installed inside the limiting groove (19), the limiting block (20) is fixed on the grouting pipe (5), and a reset mechanism (21) is fixed between the limiting block (20) and the limiting groove (19).
7. The rock-socketed pile grouting casing structure according to claim 1, characterized in that: A sliding groove (14) is formed on the inner wall of the fixed groove (9), a slider (17) is movably installed inside the sliding groove (14), a support mechanism (15) is fixed between the slider (17) and the sliding groove (14), and one end of the slider (17) is fixed on the support rod (3).
8. The rock-socketed pile grouting casing structure according to claim 1, characterized in that: An inclined hole (6) and a lifting hole are formed on the top of the cylinder (1), and the inclined hole (6) is connected to the lifting hole through-hole.
Citation Information
Patent Citations
Marine socketed pile grouting pile casing structure
CN216474981U