Horizontal grouting device for steel pipe pile

Abstract

The utility model discloses a horizontal grouting device for a steel pipe pile. The horizontal grouting device comprises a steel pipe body, one end of the steel pipe body is an end A, and the other end of the steel pipe body is an end B; the end A is positioned at the tail end of the steel pipe body; the end B is positioned in the steel pipe body; a steel mould I is detachably arranged at the end A; a steel mould II is welded at the end B; a concrete pouring hole I is formed in the steel mould I; a concrete pouring pipe I penetrates into the concrete pouring hole I; a guide rail is arranged on the inner wall of the steel pipe body; a pulley block lifting ring is arranged on the guide rail; the concrete pouring pipe I is movably connected with the guide rail through a pulley block hanging ring. According to the device, concrete grout can be efficiently poured into the steel pipe pile body on the land, the poured concrete is compact and firm, and the strength of the steel pipe pile body is well guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of infrastructure construction, and particularly relates to a horizontal grouting device for steel pipe piles. Background Technique

[0002] The concrete cast-in-place pile is a technology that pours concrete with a specific grade into a steel pipe pile to enhance the strength of the pile body. Due to the large strength and good stability of the pile body, the concrete cast-in-place pile is widely used in the civil engineering field. For example, when building an offshore wind power station or an oil platform, it is necessary to first drive piles into the seabed. When driving piles offshore, factors such as seawater, wind and waves, and temperature need to be considered. The operation of driving piles and pouring concrete is difficult and the steps are cumbersome, which affects the construction of offshore platforms. Pouring concrete into steel pipe piles on land avoids the influence of adverse factors offshore and provides inspiration for improving the difficulty of driving piles offshore. Since the offshore working platform needs to have strong stability to resist the influence of wind and waves, a pile body with a larger diameter is required. Taking the common offshore pile body as an example, the inner diameter of this pile body is about 2.5 meters, and special working platforms require even larger pile bodies. The current technology and equipment cannot efficiently and cost-effectively fill and pour the concrete slurry evenly and tightly into the steel pipe pile body, which affects the strength of the pile body. Summary of the Utility Model

[0003] The purpose of the utility model is to propose a horizontal grouting device for steel pipe piles aiming at the problems in the prior art that the concrete slurry cannot be efficiently and cost-effectively filled and poured evenly and tightly into the steel pipe pile body, which affects the strength of the pile body, etc. The device of the utility model can efficiently pour the concrete slurry into the steel pipe pile body on land, and the poured concrete is compact and firm, which can well guarantee the strength of the steel pipe pile body.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A horizontal grouting device for steel pipe piles, including a steel pipe body; one end of the steel pipe body is set as end A, and the other end is set as end B; end A is located at the end of the steel pipe body; end B is located inside the steel pipe body; a steel mold I is detachably provided at end A; a steel mold II is welded at end B; a concrete pouring hole I is provided on the steel mold I; the concrete pouring hole I penetrates a concrete pouring pipe I; guide rails are provided on the inner wall of the steel pipe body; pulley block rings are provided on the guide rails; the concrete pouring pipe I is movably connected to the guide rails through the pulley block rings.

[0006] The A end is located at the end of the steel pipe body, so that the steel mold I can be removed and reused, while the B end is located inside the steel pipe body, and the steel mold II is welded to the inside of the steel pipe body and does not need to be removed; the concrete pouring pipe I penetrates into the steel pipe body from the concrete pouring hole I, and can move along the guide rail through the pulley group hanging ring to change the position of the pipe orifice, which is beneficial to evenly distribute the concrete slurry in the steel pipe body.

[0007] As a further technical improvement, it also includes a concrete pouring pipe II; a concrete pouring hole II is provided on the steel mold II at the B end of the steel pipe body; the concrete pouring pipe II penetrates into the steel pipe body from the concrete pouring hole II; the concrete pouring hole II is connected with a concrete pump. The concrete pouring pipe II communicates with the steel pipe body through the concrete pouring hole II for pouring the second layer of concrete; the concrete pump can pump the concrete into the steel pipe body through the concrete pouring pipe II for pressure grouting.

[0008] As a further technical improvement, surrounding hoops are distributed outside the steel pipe body; vibrators are provided on the hoops. The vibrators can emit vibrations to make the concrete in the steel pipe body more tightly distributed and promote the discharge of gas.

[0009] As a further technical improvement, an air outlet inspection hole is also provided on the steel mold I; the part of the steel pipe body below the position of the air outlet inspection hole is set as the first-layer concrete pouring area; the part of the steel pipe body above the position of the air outlet inspection hole is set as the second-layer concrete pouring area. The air outlet inspection hole is used to discharge the air in the steel pipe body and can be used for in-pipe observation.

[0010] As a further technical improvement, an access observation port I and an access observation port II are also provided on the steel mold I. The access observation port I and the access observation port II are used for the staff to lean in and realize the inspection of the concrete pouring situation in the steel pipe body.

[0011] As a further technical improvement, the distance from the lowest point of the access observation port I to the bottom of the steel pipe body is 1 to 1.2 meters; the distance from the lowest point of the access observation port II to the bottom of the steel pipe body is 1.7 to 1.9 meters.

[0012] As a further technical improvement, reinforcing channel steels are provided on both the steel mold I and the steel mold II.

[0013] As a further technical improvement, a reinforcing bracket is provided between the reinforcing channel steel of the steel mold II and the inner wall of the steel pipe body. The reinforcing channel steel and the reinforcing bracket both play a role in strengthening the stability of the steel mold I and the steel mold II.

[0014] As a further technical improvement, a flange is connected to the A end of the steel pipe body; the steel mold I is detachably connected to the flange by bolts. In this way, the steel mold I can be recycled and reused.

[0015] As a further technical improvement, rubber gaskets are provided at the edges of the steel mold I and the steel mold II. The sealing gasket is used to ensure the seal between the steel mold I and the steel mold II and the steel pipe body.

[0016] The usage method of the horizontal grouting device for steel pipe piles described above:

[0017] Pipe preparation: Connect the pipe sections by welding to form a steel pipe body; weld shear keys at the A end of the steel pipe body to increase strength; transport the steel pipe body to the concrete pouring area;

[0018] Connect the steel molds: Place the steel pipe body horizontally, connect a flange at the A end of the steel pipe body; detachably connect the steel mold I to the A end of the steel pipe body by bolts; weld the steel mold II at the B end inside the steel pipe body;

[0019] First-layer concrete grouting and pouring: Insert the concrete pouring pipe I through the concrete pouring hole I; at this time, the concrete pouring pipe I can move along the guide rail through the pulley block sling; pour the corresponding grade of concrete into the steel pipe body through the concrete pouring pipe I; at this time, control the movement of the concrete pouring pipe I along the guide rail so that the outlet position of the concrete pouring pipe I changes, making the concrete in the steel pipe body evenly distributed; install and turn on the vibrator to level the concrete slurry through vibration; during this period, the grouting can be paused, and the staff can lean into the access observation port I to observe the concrete level inside the steel pipe body under safe conditions; when the concrete height reaches near the lowest point of the access observation port I, pause the grouting, seal the access observation port I, and then continue grouting; when the concrete height reaches near the lowest point of the access observation port II, pause the grouting. At this time, the first-layer concrete pouring is completed, seal the access observation port II, remove the concrete pouring pipe I, and seal the concrete pouring hole I;

[0020] Second-layer concrete grouting and pouring: Before the first-layer concrete starts to set, pump the corresponding grade of concrete into the steel pipe body from the concrete pouring pipe II through a concrete pump for pressure grouting; until the concrete overflows from the air outlet inspection hole. To ensure the compactness of the concrete in the steel pipe body, the concrete slurry needs to continuously overflow from the air outlet inspection hole for at least one minute and no air is discharged; detect the concentration of the concrete slurry. When the concentration of the flowing concrete slurry is the same as that at the inlet end, it means that the second-layer concrete has been poured densely; seal the concrete pouring pipe II and cut off the concrete pouring pipe II at a suitable position;

[0021] Finalization: After the concrete in the steel pipe body has set, remove the steel mold I, and roughen the concrete exposed at the A end of the steel pipe body, then the grouting and pouring of the steel pipe body are completed.

[0022] The technical solution of the present utility model has the following beneficial effects:

[0023] 1. The utility model can seal the A end and B end of the steel pipe body through the steel die Ⅰ and the steel die Ⅱ. After the steel pipe body is placed horizontally, concrete grouting is carried out, and there is no need to pour concrete at the pile planting point such as at sea. This makes the concrete pouring operation in the pile simple, with high work efficiency and good pouring effect.

[0024] 2. The concrete pouring pipe Ⅰ of the utility model can move inside the steel pipe body to change the position of the pipe orifice, so that the concrete is evenly distributed and falls inside the steel pipe body. At the same time, it cooperates with the vibrator to ensure that the concrete in the steel pipe body is compact, strengthening the stability of the steel pipe body pile.

[0025] 3. When pouring concrete into the steel pipe body, the utility model adopts a two-layer pouring method. When pouring the first layer of concrete, a movable pipe is used to make the concrete uniform, and artificial observation of the pouring situation is combined to ensure the pouring effect. When pouring the second layer of concrete, the pressure grouting method is adopted, so that the concrete fully fills the inside of the steel pipe body, making the steel pipe body pile more firm, which is beneficial to the pile planting requirements in environments such as at sea. Brief Description of the Drawings

[0026] Figure 1 It is a schematic structural diagram of the steel pipe body and its internal structure.

[0027] Figure 2 It is a schematic structural diagram of the concrete pump, the first-layer concrete pouring area and the second-layer concrete pouring area.

[0028] Figure 3 It is a schematic structural diagram of the hoop and the vibrator installed on the steel pipe body.

[0029] Figure 4 It is a schematic structural diagram of the steel die Ⅰ on the A end of the steel pipe body.

[0030] Figure 5 It is a schematic structural diagram of the steel die Ⅱ on the B end of the steel pipe body.

[0031] Figure 6 It is a schematic flow diagram of the usage method of the device of the utility model.

[0032] Reference Numerals: 1 - steel pipe body, 2 - steel die Ⅰ, 3 - steel die Ⅱ, 4 - guide rail, 5 - concrete pouring pipe Ⅰ, 6 - pulley block sling, 7 - strengthening bracket, 8 - strengthening channel steel, 9 - first-layer concrete pouring area, 10 - second-layer concrete pouring area, 11 - concrete pouring pipe Ⅱ, 12 - concrete pump, 13 - hoop, 14 - vibrator, 15 - air outlet inspection hole, 16 - concrete pouring hole Ⅰ, 17 - concrete pouring hole Ⅱ, 18 - access observation port Ⅰ, 19 - access observation port Ⅱ. Detailed Embodiment

[0033] The following further describes the utility model with reference to the drawings.

[0034] Example 1:

[0035] As Figures 1 to 6 shown, a horizontal grouting device for steel pipe piles includes a steel pipe body 1; one end of the steel pipe body 1 is set as end A, and the other end is set as end B; end A is located at the end of the steel pipe body 1; end B is located inside the steel pipe body 1; a steel mold I 2 is detachably provided at end A; a steel mold II 3 is welded at end B; a concrete pouring hole I 16 is provided on the steel mold I 2; the concrete pouring hole I 16 penetrates into a concrete pouring pipe I 5; a guide rail 4 is provided on the inner wall of the steel pipe body 1; a pulley group sling 6 is provided on the guide rail 4; the concrete pouring pipe I 5 is movably connected to the guide rail 4 through the pulley group sling 6.

[0036] It further includes a concrete pouring pipe II 11; a concrete pouring hole II 17 is provided on the steel mold II 3 at end B of the steel pipe body 1; the concrete pouring pipe II 11 penetrates into the steel pipe body 1 from the concrete pouring hole II 17; the concrete pouring hole II 17 is connected to a concrete pump 12.

[0037] Surrounding hoops 13 are distributed outside the steel pipe body 1; vibrators 14 are provided on the surrounding hoops 13.

[0038] An air outlet inspection hole 15 is further provided on the steel mold I 2; the part of the steel pipe body 1 below the position of the air outlet inspection hole 15 is set as the first-layer concrete pouring area 9; the part of the steel pipe body 1 above the position of the air outlet inspection hole 15 is set as the second-layer concrete pouring area 10.

[0039] An access observation port I 18 and an access observation port II 19 are further provided on the steel mold I 2.

[0040] A flange is connected to end A of the steel pipe body; the steel mold I is detachably connected to the flange through bolts.

[0041] Rubber gaskets are provided at the edges of both the steel mold I and the steel mold II.

[0042] The usage method of the present utility model is as follows:

[0043] Pipe preparation: Connect pipe sections by welding to form the steel pipe body 1; weld shear keys at end A of the steel pipe body 1 to increase strength; transport the steel pipe body 1 to the concrete pouring area;

[0044] Connect the steel molds: Place the steel pipe body 1 horizontally, connect a flange to end A of the steel pipe body 1; detachably connect the steel mold I 2 to end A of the steel pipe body 1 through bolts; weld the steel mold II 3 at end B inside the steel pipe body 1;

[0045] The first layer of concrete grouting and pouring: Insert the concrete pouring pipe I 5 through the concrete pouring hole I 16. At this time, the concrete pouring pipe I 5 can move along the guide rail 4 through the pulley block hanging ring 6. Pour the concrete of the corresponding grade into the steel pipe body 1 through the concrete pouring pipe I 5. At this time, control the movement of the concrete pouring pipe I 5 along the guide rail 4 to change the outlet position of the concrete pouring pipe I 5, so that the concrete in the steel pipe body 1 is evenly distributed. Install and turn on the vibrator 14 to level the concrete slurry through vibration. During this period, the grouting can be paused, and the staff can lean into the access observation port I 18 to observe the level of the concrete inside the steel pipe body 1 under safe conditions. When the height of the concrete reaches near the lowest point of the access observation port I 18, pause the grouting, seal the access observation port I 18, and then continue the grouting. When the height of the concrete reaches near the lowest point of the access observation port II 19, pause the grouting. At this time, the pouring of the first layer of concrete is completed. Seal the access observation port II 19, remove the concrete pouring pipe I 5, and seal the concrete pouring hole I 16;

[0046] The second layer of concrete grouting and pouring: Before the first layer of concrete starts to set, pump the concrete of the corresponding grade into the steel pipe body 1 from the concrete pouring pipe II 11 through the concrete pump 12 for pressure grouting; until the concrete overflows from the air outlet inspection hole 15. To ensure the compactness of the concrete in the steel pipe body 1, the concrete slurry needs to continuously overflow from the air outlet inspection hole 15 for at least one minute and no air is discharged; Detect the concentration of the concrete slurry. When the concentration of the flowing concrete slurry is the same as that at the inlet end, it means that the second layer of concrete has been poured densely; Seal the concrete pouring pipe II 11 and cut off the concrete pouring pipe II 11 at a suitable position;

[0047] Finishing: After the concrete in the steel pipe body 1 has set, remove the steel form I 2 and roughen the concrete exposed at the A end of the steel pipe body 1, that is, complete the grouting and pouring of the steel pipe body 1.

[0048] Embodiment 2:

[0049] The difference between this embodiment and Embodiment 1 is that the distance from the lowest point of the access observation port I 19 to the bottom of the steel pipe body 1 is 1.1 meters; the distance from the lowest point of the access observation port II 20 to the bottom of the steel pipe body 1 is 1.8 meters.

[0050] The usage method of this embodiment is the same as that of Embodiment 1.

[0051] Embodiment 3:

[0052] The difference between this embodiment and Embodiment 2 is that both the steel form I 2 and the steel form II 3 are provided with reinforcing channel steels 8. There is a reinforcing bracket 7 between the reinforcing channel steel 8 of the steel form II 3 and the inner wall of the steel pipe body 1.

[0053] The usage method of this embodiment is the same as that of Embodiment 1.

[0054] Embodiment 4:

[0055] The difference between this embodiment and Embodiment 3 is that: the distance from the lowest point of the access observation port I 19 to the bottom of the steel pipe body 1 is 1.1 meters; the distance from the lowest point of the access observation port II 20 to the bottom of the steel pipe body 1 is 1.8 meters. Reinforcing channel steels 8 are provided on both the steel form I 2 and the steel form II 3. A reinforcing bracket 7 is provided between the reinforcing channel steel 8 of the steel form II 3 and the inner wall of the steel pipe body 1.

[0056] The usage method of this embodiment is the same as that of Embodiment 1.

[0057] The above embodiments are only exemplary embodiments of the present invention and are not used to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements within the essence and protection scope of the present invention, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present invention.

[0058] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "inner", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0059] In the description of the present invention, it should also be noted that unless otherwise clearly defined and limited, the terms "set" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Claims

1. A horizontal grouting device for steel pipe piles, comprising a steel pipe body (1); characterized in that: One end of the steel tube body (1) is set as end A, and the other end is set as end B; end A is located at the end of the steel tube body (1); end B is located inside the steel tube body (1); end A is provided with a detachable steel mold I (2); end B is welded with a steel mold II (3); concrete pouring hole I (16) is provided on the steel mold I (2); concrete pouring pipe I (5) is penetrated by the concrete pouring hole I (16); guide rails (4) are provided on the inner wall of the steel tube body (1); pulley block lifting ring (6) is provided on the guide rails (4); the concrete pouring pipe I (5) is movably connected to the guide rails (4) through the pulley block lifting ring (6); It also includes a concrete pouring pipe II (11); a concrete pouring hole II (17) is provided on the steel mold II (3) at the B end of the steel pipe body (1); the concrete pouring pipe II (11) passes into the steel pipe body (1) from the concrete pouring hole II (17); the concrete pouring hole II (17) is connected to a concrete pump (12); A surrounding clamp (13) is arranged outside the steel pipe body (1); a vibrator (14) is arranged on the clamp (13).

2. The horizontal grouting device for steel pipe piles according to claim 1 is characterized in that: The steel mold I (2) is also provided with a gas outlet inspection hole (15); the portion of the steel pipe body (1) below the gas outlet inspection hole (15) is set as a first layer concrete pouring area (9); and the portion of the steel pipe body (1) above the gas outlet inspection hole (15) is set as a second layer concrete pouring area (10).

3. The horizontal grouting device for steel pipe piles according to claim 1 is characterized in that: The steel mold I (2) is also provided with an entry observation port I (18) and an entry observation port II (19).

4. The horizontal grouting device for steel pipe piles according to claim 3 is characterized in that: The lowest point of the entrance observation port I (18) is 1 to 1.2 meters away from the bottom of the steel tube body (1); the lowest point of the entrance observation port II (19) is 1.7 to 1.9 meters away from the bottom of the steel tube body (1).

5. The horizontal grouting device for steel pipe piles according to claim 1 is characterized in that: The steel mold I (2) and the steel mold II (3) are both provided with reinforcing channel steel (8).

6. The horizontal grouting device for steel pipe piles according to claim 5, characterized in that: A reinforcing bracket (7) is provided between the reinforcing channel steel (8) of the steel mold II (3) and the inner wall of the steel pipe body (1).

7. The horizontal grouting device for steel pipe piles according to claim 1, characterized in that: The A end of the steel pipe body (1) is connected with a flange; the steel mold I (2) is detachably connected to the flange by bolts.

8. The horizontal grouting device for steel pipe piles according to claim 1, characterized in that: The edges of the steel mold I (2) and the steel mold II (3) are both provided with rubber sealing pads.

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