Integrated grouting pipe for locking steel pipe pile

Abstract

The utility model belongs to the technical field of lock mouth steel pipe pile construction, and particularly relates to a lock mouth steel pipe pile integrated grouting pipe which comprises a steel pipe, and a lock mouth pipe extending in the axial direction of the steel pipe and T-shaped steel are welded to the outer wall of the steel pipe. Wherein two grouting pipes extending in the axial direction of the fore shaft pipe are symmetrically welded to the two sides of the fore shaft pipe, and the grouting pipes are further welded to the outer wall of the steel pipe; a mouth locking seam extending in the axial direction of the mouth locking pipe is formed in the mouth locking pipe; and the T-shaped steel web is driven into the fore shaft pipe through the fore shaft seam, and the T-shaped steel outer end flange plate is located in the fore shaft pipe. The integrated grouting pipe of the locking steel pipe pile is few in component and convenient to machine, and consumption of the component can be reduced; and the grouting pipes are arranged, so that the water stopping effect of the steel pipe pile cofferdam is guaranteed, and meanwhile, the construction efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of the construction technology of lock-joint steel pipe piles, and particularly relates to an integrated grouting pipe for lock-joint steel pipe piles. Background Technique

[0002] The commonly used pile types in foundation engineering include precast reinforced concrete piles, prestressed reinforced concrete piles, bored cast-in-place piles, manually dug cast-in-place piles, steel pipe piles, etc. Among them, the lock-joint steel pipe piles in steel pipe piles are widely used in deep-water foundation engineering. The lock-joint steel pipe piles can be interlocked with another lock-joint steel pipe pile with the same structure through the lock joint on one side and the locking bolt on the other side, and several lock-joint steel pipe piles are interlocked to form a group of piles to jointly support the bearing platform.

[0003] In the prior art, there is a disclosed lock-joint steel pipe pile. For example, CN219992482U discloses a supporting structure for connecting a lock-joint steel pipe pile and an I-beam, which includes several steel pipe piles arranged at intervals along the excavation edge line of the foundation pit. Both sides of the steel pipe piles are connected with lock-joint pipes, and the adjacent lock-joint pipes are connected by I-beams. The two sides of the lock-joint pipes are respectively connected with the steel pipe piles through connecting plates, and sealing materials are arranged inside the lock-joint pipes. The supporting structure for connecting the lock-joint steel pipe pile and the I-beam disclosed in this patent adopts the C-shaped lock-joint steel pipe pile and the I-beam arranged at intervals to form a supporting structure, which not only ensures that the supporting structure has good water-stop performance, but also reduces the consumption of steel pipe piles, saves the project cost and improves the economy.

[0004] It is undeniable that the supporting structure for connecting the lock-joint steel pipe pile and the I-beam disclosed in this patent can indeed achieve the above technical effects, but it still has certain deficiencies: it is necessary to set 2 lock-joint pipes on each steel pipe pile, and each lock-joint pipe is connected with the steel pipe pile through 2 connecting plates. That is to say, when processing the steel pipe pile, it is necessary to weld 2 lock-joint pipes and 4 connecting plates, which will affect the processing speed to a certain extent and consume more components. Secondly, after the construction is completed, it is necessary to use an external device to set the sealing material in the cavity formed after the I-beam is driven into the lock-joint pipe, which will affect the construction efficiency to a certain extent.

[0005] The information disclosed in this background technical part is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as an admission or any form of suggestion that this information constitutes the prior art already known to those of ordinary skill in the art. Content of the Utility Model

[0006] The purpose of the utility model is to provide an integrated grouting pipe for lock-joint steel pipe piles to solve the problems existing in the supporting structure for connecting the lock-joint steel pipe pile and the I-beam in the background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] An integrated grouting pipe for a lock-mouth steel pipe pile, comprising:

[0009] A steel pipe, on the outer wall of which a lock-mouth pipe and a T-shaped steel are welded and extend along its axial direction; wherein, on both sides of the lock-mouth pipe, 2 grouting pipes extending along its axial direction are symmetrically welded, and the grouting pipes are also welded to the outer wall of the steel pipe; a lock-mouth seam extending along the axial direction of the lock-mouth pipe is provided on the lock-mouth pipe;

[0010] The web of the T-shaped steel is driven into the lock-mouth pipe through the lock-mouth seam, and the outer flange plate of the T-shaped steel is located inside the lock-mouth pipe.

[0011] Preferably, the outer diameter of the lock-mouth pipe is smaller than the outer diameter of the steel pipe.

[0012] Preferably, the lock-mouth seam is located on the pipe wall of the extension line of the connection line between the center of the steel pipe and the center of the lock-mouth pipe.

[0013] Preferably, the T-shaped steel is welded on the side surface of the steel pipe that is symmetrical or perpendicular to the lock-mouth pipe.

[0014] Preferably, the inner diameter of the lock-mouth pipe is larger than the width of the flange plate of the T-shaped steel; the width of the lock-mouth seam is larger than the thickness of the web of the T-shaped steel.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] In the utility model, 2 grouting pipes are symmetrically welded on both sides of the lock-mouth pipe, and the grouting pipes are also welded to the outer wall of the steel pipe at the same time, so that the grouting pipes can act as strengthening components to firmly fix the steel pipe and the lock-mouth pipe together. In addition, after the steel pipe pile is inserted and driven, the high-pressure assisted grouting technology is adopted, and high-pressure grouting is carried out through the grouting pipes. After the cement slurry fills the surrounding soil, the water-stop effect of the steel pipe pile cofferdam can be realized. It can be seen from this that the integrated grouting pipe of the lock-mouth steel pipe pile of the utility model has few components, is convenient for processing, and can reduce the consumption of components; the arranged grouting pipes can not only ensure the water-stop effect of the steel pipe pile cofferdam, but also help to improve the construction efficiency. Description of the Drawings

[0017] Figure 1 It is the overall structural schematic diagram of the utility model;

[0018] Figure 2 It is another structural schematic diagram of the utility model;

[0019] Figure 3 It is the state diagram of the construction of the utility model.

[0020] Main reference numeral description:

[0021] 1. Steel pipe; 2. Locking pipe; 21. Locking seam; 3. T-shaped steel; 31. Web; 32. Flange; 4. Grouting pipe. Detailed implementation mode

[0022] The following is a clear and complete description of the technical solution of the patent of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative work belong to the scope protected by the present utility model.

[0023] Embodiment

[0024] Refer to the attached Figures 1 - 3 , a lock-type steel pipe pile integrated grouting pipe, comprising:

[0025] A steel pipe 1, on the outer wall of the steel pipe 1, a locking pipe 2 and a T-shaped steel 3 extending along its axis are welded; wherein, on both sides of the locking pipe 2, 2 grouting pipes 4 extending along its axis are symmetrically welded, and the grouting pipe 4 is also welded to the outer wall of the steel pipe 1; a locking seam 21 extending along the axis of the locking pipe 2 is opened on the locking pipe 2; in this embodiment, the outer diameter of the locking pipe 2 is smaller than the outer diameter of the steel pipe 1; the locking seam 21 is located on the pipe wall of the extension line of the connection line between the center of the steel pipe 1 and the center of the locking pipe 2;

[0026] The web 31 of the T-shaped steel 3 is driven into the locking pipe 2 through the locking seam 21 and the outer end flange 32 of the T-shaped steel 3 is located inside the locking pipe 2; in this embodiment, the T-shaped steel 3 is welded on the side of the steel pipe 1 symmetrical or perpendicular to the locking pipe 2; the inner diameter of the locking pipe 2 is larger than the width of the flange 32 of the T-shaped steel 3; the width of the locking seam 21 is larger than the thickness of the web 31 of the T-shaped steel 3.

[0027] The steel pipe 1, the locking pipe 2 and the T-shaped steel 3 are welded into a whole on a positioning tool, and 2 grouting pipes 4 are symmetrically welded on both sides of the locking pipe 2, and the grouting pipe 4 is also welded to the outer wall of the steel pipe 1 together. In this way, the grouting pipe 4 can act as a strengthening component to firmly fix the steel pipe 1 and the locking pipe 2 together. After the steel pipe pile is inserted and driven, the high-pressure assisted grouting technology is adopted, and high-pressure grouting is carried out through the grouting pipe 4. After the cement slurry fills the surrounding soil, the water-stop effect of the steel pipe pile cofferdam can be realized.

[0028] It should be added that Figure 2 the layout method in which the T-shaped steel 3 is welded on the side of the steel pipe 1 perpendicular to the locking pipe 2 is used at the corner of the cofferdam; and Figure 1 the layout method in which the T-shaped steel 3 is welded on the side of the steel pipe 1 symmetrical to the locking pipe 2 is used around the cofferdam.

[0029] The foregoing description of the specific exemplary embodiments of the present utility model is for purposes of illustration and exemplification. These descriptions are not intended to limit the present utility model to the precise forms disclosed, and it is apparent that many changes and variations are possible in light of the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present utility model and its practical applications, so that those skilled in the art can implement and utilize the various different exemplary embodiments of the present utility model, as well as various different selections and changes. The scope of the present utility model is intended to be defined by the claims and their equivalents.

Claims

1. A locking steel pipe pile integrated grouting pipe, characterized in that: include: A steel pipe, a locking pipe and a T-shaped steel extending along the axial direction are welded on the outer wall of the steel pipe; wherein two grouting pipes extending along the axial direction are symmetrically welded on both sides of the locking pipe, and the grouting pipes are also welded to the outer wall of the steel pipe; a locking seam extending along the axial direction is opened on the locking pipe; The web plate of the T-shaped steel is driven into the locking tube through the locking seam and the outer end flange plate of the T-shaped steel is located in the locking tube.

2. The interlocking steel pipe pile integrated grouting pipe according to claim 1, characterized in that: The outer diameter of the locking tube is smaller than the outer diameter of the steel tube.

3. The interlocking steel pipe pile integrated grouting pipe according to claim 1, characterized in that: The locking seam is located on the tube wall of the extension line of the line connecting the center of the steel tube and the center of the locking tube.

4. The interlocking steel pipe pile integrated grouting pipe according to claim 1, characterized in that: The T-shaped steel is welded on the side surface of the steel pipe which is symmetrical or perpendicular to the locking pipe.

5. The interlocking steel pipe pile integrated grouting pipe according to claim 1, characterized in that: The inner diameter of the locking tube is greater than the width of the T-shaped steel flange plate; the width of the locking seam is greater than the thickness of the T-shaped steel web plate.

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