Spraying and expanding frustum press-grouting pile
By setting specific cone blocks, support plates, limit frames and reinforcement frames in the compressed cast piles in the spray-expanded cone table, the problem of poor stability of the compressed cast pile body is solved, its stability and strength are improved, and the service life is extended.
Patent Information
- Application Number
- CN202421978918.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-08-15
AI Technical Summary
When used in the existing spray-expanded cone-forming pile, the stability of the press-forming pile main body is poor, which affects its service life.
By setting up cone block A, cone block B, support plate A, support plate B, limit frame, reinforcement frame, reinforcement layer A, reinforcement layer B, reinforcement layer C, fixing plate and connecting plate, the stability and strength of the press-cast pile main body are improved.
It improves the stability and strength of the press-cast pile main body and extends its service life.
Smart Images
Figure CN222923727U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction equipment, in particular to a jet-expanded frustum pressure grouting pile. Background Technique
[0002] The jet-expanded frustum pressure grouting pile is a pile foundation technology that uses high-pressure jet grouting technology and drilling tools to form high-pressure jet grouting of cement slurry in the bearing layer of the expanded body. The jet-expanded frustum pressure grouting pile technology combines the characteristics of high-pressure jet grouting and bored pressure grouting piles and is realized through specific construction processes and equipment. Specifically, this technology first uses a long spiral multi-functional drilling rig to drill to the pile bottom elevation, and then cuts the soil body by high-pressure jet grouting of cement slurry to form a frustum-expanded body.
[0003] However, when the existing jet-expanded frustum pressure grouting pile is in use, usually the staff directly pours concrete and places the steel reinforcement cage into the hole of the drill hole to form the pressure grouting pile in the hole. However, there is a gap between the formed pressure grouting pile and the hole, and the stability of the connection between the pressure grouting pile and the hole is poor. At the same time, there is only one group of steel reinforcement cages in the pressure grouting pile, resulting in poor strength of the pressure grouting pile, which has a certain impact on the service life of the pressure grouting pile. Therefore, the jet-expanded frustum pressure grouting pile is provided. Content of the Utility Model
[0004] The main purpose of the utility model is to provide a jet-expanded frustum pressure grouting pile. The utility model solves the problem that the stability of the pressure grouting pile body is poor and affects the service life of the pressure grouting pile body when the existing jet-expanded frustum pressure grouting pile is in use by setting the cone block A, cone block B, support plate A, support plate B, limiting frame, strengthening frame, strengthening layer A, strengthening layer B, strengthening layer C, fixing plate and connecting plate.
[0005] The technical solution adopted by the utility model to solve its technical problems is a jet-expanded frustum pressure grouting pile, including a pressure grouting pile body and a strengthening frame. A limiting frame for improving the stability of the pressure grouting pile body is arranged inside the pressure grouting pile body. A cone block A for fixing the limiting frame is inserted on one side of the limiting frame. A cone block B for limiting the limiting frame is inserted at the bottom of the limiting frame. A support plate A for driving one side of the cone block A is welded outside the cone block A, and the support plate A inclines inward. A support plate B for driving one side of the cone block B is welded on one side of the cone block B. A fixing plate for driving one side of the support plate A is welded outside the strengthening frame. A connecting plate for driving one side of the support plate B is welded at the bottom of the strengthening frame. A strengthening layer A for improving the strength of the pressure grouting pile body is arranged inside the strengthening frame. A strengthening layer B for increasing the strength of the pressure grouting pile body is welded on the inner side of the strengthening layer A. A strengthening layer C for improving the strength of the pressure grouting pile body is welded on one side of the strengthening layer B.
[0006] By adopting the above technical solution, after the drilling of the ground is completed, the mud blocks at the drilling position are removed from the ground, then the limiting frame is placed into the hole, and then the reinforcing frame is placed into the limiting frame. Subsequently, with the movement of the reinforcing frame, the fixing plate outside the reinforcing frame drives the support plate A on the limiting frame to move, and the support plate A drives the cone block A into the interior of the hole. Moreover, multiple groups of cone blocks A are arranged on the limiting frame, enabling the cone blocks A on the limiting frame to enter different positions inside the hole. Subsequently, the connecting plate at the bottom of the reinforcing frame presses the support plate B at the bottom of the limiting frame, and then the support plate B drives the cone block B into the bottom end interior of the hole, making the limiting frame tightly connected to the inside of the hole. Then, concrete is poured into the hole, thereby improving the stability of the cast-in-place pile body;
[0007] The limiting frame and the reinforcing frame inside the cast-in-place pile body form the cast-in-place pile body. The reinforcing layer A inside the reinforcing frame is made of wire mesh, and the reinforcing layers B and C inside the reinforcing layer A are made of reinforcing bars and carbon steel respectively, thereby increasing the cast-in-place pile body and improving the service life of the cast-in-place pile body.
[0008] Specifically, concave holes A for the movement of the cone block A are formed on the surface of the limiting frame, and concave holes B for the movement of the cone block B are formed at the bottom of the limiting frame.
[0009] By adopting the above technical solution, when the support plate A drives the cone block A to move, the cone block A moves within the concave hole A formed on the surface of the limiting frame, facilitating the movement of the cone block A on the limiting frame;
[0010] When the support plate B drives the cone block B to move, the cone block B moves within the concave hole B formed at the bottom of the limiting frame, thus facilitating the movement of the cone block at the bottom of the limiting frame.
[0011] Specifically, convex grain blocks for increasing friction are provided on the surfaces of the fixing plate and the connecting plate.
[0012] By adopting the above technical solution, when the fixing plate presses the support plate A outside the cone block A, the convex grain blocks on the fixing plate increase the friction on the surface of the support plate A, facilitating the fixing plate to press the support plate A to move;
[0013] When the connecting plate presses the support plate B on the cone block B, the convex grain blocks on the connecting plate increase the friction on the surface of the support plate B, facilitating the connecting plate to drive the support plate B to move.
[0014] Specifically, the reinforcing layer A is made of wire mesh, and the reinforcing layer B is made of reinforcing bars.
[0015] By adopting the above technical solution, the reinforcing layer A made of wire mesh and the reinforcing layer B made of reinforcing bars are formed inside the reinforcing frame, improving the strength of the cast-in-place pile body.
[0016] Specifically, the reinforcing layer C is made of carbon steel.
[0017] By adopting the above technical solution, a reinforcing layer C made of carbon steel is provided inside the reinforcing frame to enhance the strength of the cast-in-place pile body.
[0018] Advantages of the present utility model:
[0019] (1) For the spray-expanded conical cast-in-place pile of the present utility model, after the drilling of the ground is completed, the mud blocks at the drilling position are removed from the ground. Then, the limiting frame is placed into the hole, and subsequently, the reinforcing frame is placed into the limiting frame. With the movement of the reinforcing frame, the fixing plate outside the reinforcing frame drives the support plate A on the limiting frame to move, and the support plate A drives the cone block A into the inside of the hole. Moreover, multiple groups of cone blocks A are provided on the limiting frame, enabling the cone blocks A on the limiting frame to enter different positions inside the hole. Subsequently, the connecting plate at the bottom of the reinforcing frame presses the support plate B at the bottom of the limiting frame, and then the support plate B drives the cone block B into the bottom end inside the hole, making the limiting frame tightly connected to the inside of the hole. Then, concrete is poured into the hole, thereby improving the stability of the cast-in-place pile body.
[0020] (2) For the spray-expanded conical cast-in-place pile of the present utility model, the limiting frame and the reinforcing frame inside the cast-in-place pile body form the cast-in-place pile body. The reinforcing layer A inside the reinforcing frame is made of wire mesh, and the reinforcing layers B and C inside the reinforcing layer A are made of reinforcing bars and carbon steel respectively, thereby strengthening the cast-in-place pile body and extending the service life of the cast-in-place pile body. Description of the drawings
[0021] The present utility model will be further described below in conjunction with the drawings and embodiments.
[0022] Figure 1 It is a schematic diagram of the overall structure of the spray-expanded conical cast-in-place pile of the present utility model;
[0023] Figure 2 It is a schematic diagram of the internal top view structure of the spray-expanded conical cast-in-place pile of the present utility model;
[0024] Figure 3 It is a schematic diagram of the sectional structure of the limiting frame of the spray-expanded conical cast-in-place pile of the present utility model;
[0025] In the figure: 1, cast-in-place pile body; 2, cone block A; 3, cone block B; 4, concave hole A; 5, limiting frame; 6, support plate A; 7, convex grain block; 8, fixing plate; 9, reinforcing frame; 10, reinforcing layer A; 11, reinforcing layer B; 12, reinforcing layer C; 13, connecting plate; 14, concave hole B; 15, support plate B. Detailed implementation manners
[0026] In order to make the technical means, creative features, achieved purposes, and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.
[0027] In order to improve the stability of the pressure-cast pile body 1, as an embodiment of the utility model, Figure 1 , Figure 2 and Figure 3 As shown, the spray expansion cone grouted pile described in the utility model comprises a grouted pile body 1 and a reinforcement frame 9, wherein a limit frame 5 for improving the stability of the grouted pile body 1 is arranged inside the grouted pile body 1, a cone block A2 for fixing the limit frame 5 is inserted on one side of the limit frame 5, a cone block B3 for limiting the limit frame 5 is inserted on the bottom of the limit frame 5, a support plate A6 for driving one side of the cone block A2 is welded to the outside of the cone block A2, and the support plate A6 is inclined inward, a support plate B15 for driving one side of the cone block B3 is welded to one side of the cone block B3, a fixing plate 8 for driving one side of the support plate A6 is welded to the outside of the reinforcement frame 9, a connecting plate 13 for driving one side of the support plate B15 is welded to the bottom of the reinforcement frame 9, a reinforcement layer A10 for improving the strength of the grouted pile body 1 is arranged inside the reinforcement frame 9, a reinforcement layer B11 for increasing the strength of the grouted pile body 1 is welded on the inner side of the reinforcement layer A10, and a reinforcement layer C12 for improving the strength of the grouted pile body 1 is welded on one side of the reinforcement layer B11.
[0028] When in use, after drilling the ground is completed, the mud blocks at the drilling position are removed from the ground, and then the limit frame 5 is placed in the hole, and then the reinforcing frame 9 is placed in the limit frame 5, and then the reinforcing frame 9 moves, and the fixed plate 8 outside the reinforcing frame 9 drives the support plate A6 on the limit frame 5 to move, and the support plate A6 drives the cone block A2 to enter the inside of the hole, and there are multiple groups of cone blocks A2 on the limit frame 5, so that the cone block A2 on the limit frame 5 enters different positions in the hole, and then the connecting plate 13 at the bottom of the reinforcing frame 9 presses the support plate B15 at the bottom of the limit frame 5, and then the support plate B15 drives the cone block B3 to enter the bottom end of the hole, so that the limit frame 5 is tightly connected with the hole, and then concrete is poured into the hole, thereby improving the stability of the grouted pile body 1;
[0029] The limiting frame 5 and the reinforcing frame 9 in the pressure-grouted pile body 1 shape the pressure-grouted pile body 1, the reinforcing layer A10 in the reinforcing frame 9 is made of a steel mesh, and the reinforcing layer B11 and the reinforcing layer C12 in the reinforcing layer A10 are respectively made of reinforcing ribs and carbon steel, thereby increasing the pressure-grouted pile body 1 and improving the service life of the pressure-grouted pile body 1.
[0030] In order to move the cone block A2 on the limiting frame 5, the cone block A2 moves at the bottom of the limiting frame 5, for example, Figure 3 As shown, the utility model also includes that the surface of the limiting frame 5 is provided with a concave hole A4 for moving the cone block A2, and the bottom of the limiting frame 5 is provided with a concave hole B14 for moving the cone block B3.
[0031] During use, when the support plate A6 drives the cone block A2 to move, the cone block A2 moves within the concave hole A4 formed on the surface of the limit frame 5, facilitating the movement of the cone block A2 on the limit frame 5;
[0032] When the support plate B15 drives the cone block B3 to move, the cone block B3 moves within the concave hole B14 formed at the bottom of the limit frame 5, thus facilitating the movement of the cone block A2 at the bottom of the limit frame 5.
[0033] To fix the plate 8 to press the support plate A6 to move, the connecting plate 13 drives the support plate B15 to move. Exemplarily, as Figure 2 shown, the present utility model further includes that convex grain blocks 7 for increasing friction are provided on the surfaces of both the fixing plate 8 and the connecting plate 13.
[0034] During use, when the fixing plate 8 presses the support plate A6 outside the cone block A2, the convex grain block 7 on the fixing plate 8 increases the friction on the surface of the support plate A6, facilitating the fixing plate 8 to press the support plate A6 to move;
[0035] When the connecting plate 13 presses the support plate B15 on the cone block B3, the convex grain block 7 on the connecting plate 13 increases the friction on the surface of the support plate B15, facilitating the connecting plate 13 to drive the support plate B15 to move.
[0036] To increase the strength of the cast-in-place pile main body 1, exemplarily, as Figure 2 shown, the present utility model further includes that the reinforcing layer A10 is made of wire mesh, and the reinforcing layer B11 is made of reinforcing bars.
[0037] During use, the reinforcing layer A10 made of wire mesh and the reinforcing layer B11 made of reinforcing bars are provided inside the reinforcing frame 9 to increase the strength of the cast-in-place pile main body 1.
[0038] To increase the strength of the cast-in-place pile main body 1, exemplarily, as Figure 2 shown, the present utility model further includes that the reinforcing layer C12 is made of carbon steel.
[0039] During use, the reinforcing layer C12 made of carbon steel is provided inside the reinforcing frame 9 to increase the strength of the cast-in-place pile main body 1.
[0040] When the utility model is in use, after the drilling of the ground is completed, the mud blocks at the drilling position are removed from the ground. Then, the limiting frame 5 is placed into the hole, and then the reinforcing frame 9 is placed into the limiting frame 5. Subsequently, with the movement of the reinforcing frame 9, the fixing plate 8 outside the reinforcing frame 9 drives the support plate A6 on the limiting frame 5 to move. The support plate A6 drives the tapered block A2 to enter the interior of the hole. Moreover, multiple groups of tapered blocks A2 are provided on the limiting frame 5, so that the tapered blocks A2 on the limiting frame 5 enter different positions inside the hole. Subsequently, the connecting plate 13 at the bottom of the reinforcing frame 9 presses the support plate B15 at the bottom of the limiting frame 5. Then, the support plate B15 drives the tapered block B3 to enter the interior of the bottom end of the hole, making the limiting frame 5 tightly connected with the inside of the hole. Then, concrete is poured into the hole, thereby improving the stability of the grouting pile body 1;
[0041] The limiting frame 5 and the reinforcing frame 9 inside the grouting pile body 1 form the grouting pile body 1. The reinforcing layer A10 inside the reinforcing frame 9 is made of wire mesh, and the reinforcing layers B11 and C12 inside the reinforcing layer A10 are made of reinforcing bars and carbon steel respectively, thereby increasing the grouting pile body 1 and improving the service life of the grouting pile body 1;
[0042] When the support plate A6 drives the tapered block A2 to move, the tapered block A2 moves in the concave hole A4 formed on the surface of the limiting frame 5, facilitating the movement of the tapered block A2 on the limiting frame 5;
[0043] When the support plate B15 drives the tapered block B3 to move, the tapered block B3 moves in the concave hole B14 formed at the bottom of the limiting frame 5, thereby facilitating the movement of the tapered block A2 at the bottom of the limiting frame 5;
[0044] When the fixing plate 8 presses the support plate A6 outside the tapered block A2, the convex grain blocks 7 on the fixing plate 8 increase the friction force on the surface of the support plate A6, facilitating the fixing plate 8 to press the support plate A6 to move;
[0045] When the connecting plate 13 presses the support plate B15 on the tapered block B3, the convex grain blocks 7 on the connecting plate 13 increase the friction force on the surface of the support plate B15, facilitating the connecting plate 13 to drive the support plate B15 to move.
[0046] The above shows and describes the basic principles, main features, and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of protection required by the utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.
Claims
1. Spray-expand cone grouting pile, characterized in that: The invention comprises a pressure-grouted pile body (1) and a reinforcement frame (9), wherein a limit frame (5) is arranged inside the pressure-grouted pile body (1) for improving the stability of the pressure-grouted pile body (1), a cone block A (2) for fixing the limit frame (5) is inserted on one side of the limit frame (5), a cone block B (3) for limiting the limit frame (5) is inserted on the bottom of the limit frame (5), a support plate A (6) for driving one side of the cone block A (2) is welded on the outside of the cone block A (2), and the support plate A (6) is inclined inwardly, and a support plate A (6) for driving one side of the cone block B (3) is welded on one side of the cone block B (3) A support plate B (15), a fixing plate (8) driving one side of the support plate A (6) is welded to the outside of the reinforcement frame (9), a connecting plate (13) driving one side of the support plate B (15) is welded to the bottom of the reinforcement frame (9), a reinforcement layer A (10) for increasing the strength of the pressure-cast pile body (1) is arranged inside the reinforcement frame (9), a reinforcement layer B (11) for increasing the strength of the pressure-cast pile body (1) is welded to the inside of the reinforcement layer A (10), and a reinforcement layer C (12) for increasing the strength of the pressure-cast pile body (1) is welded to one side of the reinforcement layer B (11).
2. The spray expansion cone grouting pile according to claim 1, characterized in that: The surface of the limiting frame (5) is provided with a concave hole A (4) for moving the cone block A (2), and the bottom of the limiting frame (5) is provided with a concave hole B (14) for moving the cone block B (3).
3. The spray expansion cone grouting pile according to claim 1, characterized in that: The surfaces of the fixing plate (8) and the connecting plate (13) are both provided with convex blocks (7) for increasing friction.
4. The spray expansion cone grouting pile according to claim 1, characterized in that: The reinforcement layer A (10) is made of a steel wire mesh, and the reinforcement layer B (11) is made of reinforcement ribs.
5. The spray expansion cone grouting pile according to claim 1, characterized in that: The reinforcement layer C (12) is made of carbon steel.