Tubular pile capable of improving bearing capacity through multi-position grouting

Abstract

The utility model discloses a tubular pile capable of improving the bearing capacity through multi-position grouting, and relates to the technical field of machinery, the tubular pile capable of improving the bearing capacity through multi-position grouting comprises a tubular pile connecting assembly, and the lower end of the tubular pile connecting assembly is connected with a tubular pile assembly; the pipe pile connecting assembly comprises a first pipe pile, and a plurality of first grouting pipes are connected to the surface of the lower end of the first pipe pile. The pipe pile assembly comprises a second pipe pile, a first grouting pipe and a first grouting pipe connecting hole coincide, the first pipe pile and the second pipe pile form a long pipe pile, at the moment, a plurality of pipe piles are combined to form the long pipe pile, the bearing capacity of the pipe pile can be improved, and then high-pressure water injection is conducted through the second grouting pipe connecting hole. Water can be conveyed to the outer side of the tubular pile through the second grouting hole and the fourth grouting hole, so that the dense state of a pebble or sand layer is changed, the tubular pile continues to move, the installation speed of the tubular pile can be increased, and the probability of pile explosion of the tubular pile is reduced.

Description

Technical Field

[0001] This application relates to the field of building technology, and in particular to a pipe pile that improves bearing capacity through multi-location grouting. Background Technology

[0002] Currently, pipe pile design often employs dual control requirements for pile length and final pressure value. However, when constructing in dense sand, the pile is prone to bursting due to the compacted state of the sand, making it difficult to meet the dual control requirements. Simultaneously, the low side friction of the pile in poor soil layers necessitates the pipe pile to penetrate silty soil, resulting in longer pipe piles with lower bearing capacity. Therefore, a pipe pile that improves bearing capacity through multi-location grouting, and solves both the dual control problem and the bursting issue, is needed. Utility Model Content

[0003] The purpose of this application is to provide a pipe pile with improved bearing capacity through multi-location grouting, in order to solve the problems mentioned in the background art: for poor soil layers, due to the low side friction of the pile, the pipe pile often needs to penetrate the silty soil, resulting in a long pipe pile and low bearing capacity; at the same time, the current pipe pile design is often dual-controlled, with pile length and final pressure value (hydraulic pressure value of static pressure pipe pile). When construction reaches dense sand, the pile is prone to bursting in the dense state of sand. Usually, the final hydraulic pressure value is the main factor to reach the design bearing capacity, and the design pile length is secondary, which generally cannot meet the dual-control requirements.

[0004] To achieve the above objectives, this application specifically adopts the following technical solution:

[0005] A pipe pile with improved bearing capacity through multi-position grouting includes a pipe pile connection assembly, the lower end of which is connected to a pipe pile assembly.

[0006] The pipe pile connection assembly includes a first pipe pile, and a plurality of first grouting pipes are connected to the lower end surface of the first pipe pile.

[0007] The pipe pile assembly includes a second pipe pile, and the upper surface of the second pipe pile has a plurality of first grouting pipe connection holes.

[0008] By adopting the above technical solution, the first pipe pile is connected to the second pipe pile through a first grouting pipe with its connection hole coinciding with the first grouting pipe. This allows the first and second pipe piles to form a longer pipe pile, which improves the bearing capacity of the pipe pile and enables it to quickly penetrate the silty soil layer.

[0009] Preferably, the upper surface of the first pipe pile is provided with a plurality of second grouting pipe connection holes, the lower end of each second grouting pipe connection hole is provided with a first grouting hole, and the outer surface of the first pipe pile is provided with a plurality of second grouting holes.

[0010] Preferably, the second grouting hole is connected to the first grouting hole, the lower end of each first grouting hole is connected to the first grouting pipe, the middle part of the first grouting pipe is a hollow structure, and the first grouting pipe is connected to the first grouting hole.

[0011] Preferably, a third grouting hole is provided at the lower end of each of the first grouting pipe connection holes, and a plurality of fourth grouting holes are provided on the outer surface of the second pipe pile.

[0012] By adopting the above technical solution, high-pressure water injection can be carried out through the second grouting pipe connection hole, allowing water to be transported to the outside of the pipe pile through the second and fourth grouting holes, thereby changing the compaction state of the gravel or sand layer, and thus allowing the pipe pile to continue to move, which can improve the installation rate of the pipe pile.

[0013] Preferably, the first grouting pipe connection hole fits into the first grouting pipe, the middle part of the first pipe pile is a hollow structure, the middle part of the second pipe pile is a hollow structure, and the first pipe pile is connected to the second pipe pile through the first grouting pipe and the first grouting pipe connection hole coinciding.

[0014] By adopting the above technical solution, high-pressure grouting can be carried out through the second grouting pipe connection hole, allowing the grout to be transported to the outside of the pipe pile through the second grouting hole and the fourth grouting hole, which can increase the compactness between the pipe pile and the surrounding soil.

[0015] In summary, this application includes at least one of the following beneficial effects;

[0016] 1. In this application, by aligning the first grouting pipe with the first grouting pipe connection hole, the first pipe pile and the second pipe pile are combined to form a longer pipe pile. At this time, the combination of multiple pipe piles to form a longer pipe pile can improve the bearing capacity of the pipe pile. Then, high-pressure water injection is carried out through the second grouting pipe connection hole, which allows water to be transported to the outside of the pipe pile through the second grouting hole and the fourth grouting hole, thereby changing the compaction state of the gravel or sand layer, and allowing the pipe pile to continue to move. This can improve the installation speed of the pipe pile and reduce the probability of the pipe pile bursting. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the main body of the device in this application;

[0018] Figure 2 This is a schematic diagram of the smoke exhaust assembly structure of the main body of the device in this application;

[0019] Figure 3 This is a schematic diagram of the air supply component structure of the main body of the device in this application;

[0020] Figure 4 This is a schematic diagram of the exhaust and smoke extraction system of the main body of the device in this application.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Pipe pile connection assembly; 101. First pipe pile; 102. Second grouting pipe connection hole; 103. First grouting hole; 104. Second grouting hole; 105. First grouting pipe; 2. Pipe pile assembly; 201. Second pipe pile; 202. First grouting pipe connection hole; 203. Third grouting hole; 204. Fourth grouting hole. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0024] This application discloses a pipe pile whose bearing capacity is improved by multi-location grouting.

[0025] Reference Figure 1 and Figure 2 A pipe pile with improved bearing capacity through multi-position grouting includes a pipe pile connection assembly 1, and a pipe pile assembly 2 is connected to the lower end of the pipe pile connection assembly 1.

[0026] Reference Figure 3 The pipe pile connection assembly 1 includes a first pipe pile 101, and a plurality of first grouting pipes 105 are connected to the lower end surface of the first pipe pile 101.

[0027] Reference Figure 4 The pipe pile assembly 2 includes a second pipe pile 201, and a plurality of first grouting pipe connection holes 202 are opened on the upper surface of the second pipe pile 201.

[0028] Reference Figure 3 The upper surface of the first pipe pile 101 is provided with a number of second grouting pipe connection holes 102, the lower end of each second grouting pipe connection hole 102 is provided with a first grouting hole 103, and the outer surface of the first pipe pile 101 is provided with a number of second grouting holes 104.

[0029] Reference Figure 3 The second grouting hole 104 is connected to the first grouting hole 103. The lower end of each first grouting hole 103 is connected to the first grouting pipe 105. The middle part of the first grouting pipe 105 is hollow, and the first grouting pipe 105 is connected to the first grouting hole 103.

[0030] Reference Figure 4Each first grouting pipe connection hole 202 has a third grouting hole 203 at its lower end, and the outer surface of the second pipe pile 201 has several fourth grouting holes 204. By injecting high-pressure water into the second grouting pipe connection hole 102 at the upper end of the first pipe pile 101, water is transported from the first grouting hole 103 to the first grouting pipe 105, and then from the first grouting pipe 105 to the third grouting hole 203 in the second pipe pile 201. Then, the water will be transported to the outer surface of the pipe pile through the second grouting hole 104 and the fourth grouting hole 204, thereby changing the compaction state of the gravel or sand layer, which can improve the installation speed of the pipe pile.

[0031] Reference Figure 2 The first grouting pipe connection hole 202 fits into the first grouting pipe 105. The middle part of the first pipe pile 101 is a hollow structure. The middle part of the second pipe pile 201 is a hollow structure. The first pipe pile 101 is connected to the second pipe pile 201 through the first grouting pipe 105 coinciding with the first grouting pipe connection hole 202.

[0032] Working principle: First, the second pipe pile 201 is moved downwards. After the second pipe pile 201 is submerged, the first grouting hole 103 connected to the lower surface of the first pipe pile 101 is aligned with the first grouting pipe connection hole 202 on the upper surface of the second pipe pile 201, connecting the first pipe pile 101 and the second pipe pile 201 to form a single pipe pile. Then, the pipe pile continues to move downwards. When the pipe pile encounters a dense gravel or sand layer during its movement, high-pressure water injection is performed into the second grouting pipe connection hole 102 on the upper surface of the first pipe pile 101, allowing water to flow from the first grouting hole 103. The water is delivered to the first grouting pipe 105, and then from the first grouting pipe 105 to the third grouting hole 203 in the second pipe pile 201. Then, the water is delivered to the outer surface of the pipe pile through the second grouting hole 104 and the fourth grouting hole 204, thereby changing the compaction state of the gravel or sand layer and allowing the pipe pile to continue to move downward. When the pipe pile moves to the corresponding position, high-pressure grouting is performed through the second grouting pipe connection hole 102, and the grout is delivered to the outer surface of the pipe pile through the second grouting hole 104 and the fourth grouting hole 204 to increase the compaction between the pipe pile and the surrounding soil. Finally, the grout is allowed to solidify, and all operations are completed.

[0033] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Specific examples have been used in this document to illustrate the principles and implementation methods of this utility model. These examples are only intended to aid in understanding the method and core ideas of this utility model. The above descriptions are merely preferred embodiments of this utility model. It should be pointed out that, due to the limitations of written expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or variations can be made without departing from the principles of this utility model, and the above technical features can be combined in an appropriate manner. These improvements, modifications, variations, or combinations, or the direct application of the concept and technical solution of this utility model to other situations without modification, should all be considered within the scope of protection of this utility model.

Claims

1. A pipe pile with improved bearing capacity through multi-position grouting, comprising a pipe pile connection assembly (1), characterized in that: The lower end of the pipe pile connection assembly (1) is connected to the pipe pile assembly (2); The pipe pile connection assembly (1) includes a first pipe pile (101), and a plurality of first grouting pipes (105) are connected to the lower end surface of the first pipe pile (101). The pipe pile assembly (2) includes a second pipe pile (201). The upper surface of the second pipe pile (201) is provided with a plurality of first grouting pipe connection holes (202). The upper surface of the first pipe pile (101) is provided with a plurality of second grouting pipe connection holes (102). The lower end of each second grouting pipe connection hole (102) is provided with a first grouting hole (103). The outer surface of the first pipe pile (101) is provided with a plurality of second grouting holes (104). The first grouting pipe connection hole (202) is fitted with the first grouting pipe (105). The middle part of the first pipe pile (101) is a hollow structure. The middle part of the second pipe pile (201) is a hollow structure.

2. The pipe pile with improved bearing capacity through multi-position grouting according to claim 1, characterized in that: The second grouting hole (104) is connected to the first grouting hole (103), and the lower end of each of the first grouting holes (103) is connected to the first grouting pipe (105). The middle part of the first grouting pipe (105) is a hollow structure.

3. A pipe pile with improved bearing capacity through multi-position grouting according to claim 1, characterized in that: A third grouting hole (203) is provided at the lower end of each of the first grouting pipe connection holes (202), and a plurality of fourth grouting holes (204) are provided on the outer surface of the second pipe pile (201).

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