Pile foundation with cleanable grouting joints and jacket

Abstract

The invention provides a pile foundation and jacket containing cleanable grouting joints, which comprises a steel pipe pile, a shear key body and a rigid access pipe, and is characterized in that the shear key body is arranged at one end of an inner cavity of the steel pipe pile; the rigid access pipe is arranged on the outer wall of the end part of one end and is communicated with the shear key body; the free end of the rigid access pipe is connected with an external water source; a water outlet hole is formed in the shear key body; the defect that when a grouting joint part in an existing pile foundation is cleaned, due to the existence of shear keys, cleaning is not thorough is overcome.

Description

Technical Field

[0001] The invention belongs to the field of wind turbine foundations, and in particular relates to a pile foundation and a conductor pipe frame with washable grouting nodes. Background Art

[0002] As an important part of wind power generation, offshore wind power foundation is related to the safety and stability of wind turbines.

[0003] As a common foundation form in the field of offshore wind power, the jacket foundation is widely used in deep waters. The jacket foundation includes the upper jacket frame and the lower pile foundation, and the pile foundation and the jacket frame are connected by grouting nodes.

[0004] In order to save the length of the pile foundation, the grouting nodes are usually located near the mud surface or even below the mud surface. Before the grouting construction, the grouting nodes inside the pile foundation need to be treated with mud suction. However, due to the existence of shear keys in the grouting nodes, the mud and sand near the shear keys are usually difficult to clean, and the existence of these mud and sand will seriously affect the strength of the grouting nodes. Summary of the invention

[0005] The object of the present invention is to provide a pile foundation and a conductor pipe frame with washable grouting nodes, which solves the defect that the grouting node parts inside the existing pile foundation cannot be cleaned thoroughly due to the existence of shear keys.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] The present invention provides a pile foundation with a washable grouting node, comprising a steel pipe pile, a shear key body and a rigid access pipe, wherein:

[0008] The shear key body is arranged at one end of the inner cavity of the steel pipe pile; the rigid access pipe is arranged on the outer wall of the one end and is connected to the shear key body; the free end of the rigid access pipe is connected to an external water source; and a water outlet hole is opened on the shear key body.

[0009] Preferably, the shear key body includes a longitudinal connecting pipeline and a plurality of annular shear keys, wherein the plurality of annular shear keys are arranged at one end of the inner cavity of the steel pipe pile along the axial direction of the steel pipe pile, and the plurality of annular shear keys are connected through the longitudinal connecting pipeline, and the longitudinal connecting pipeline is connected to the rigid access pipe.

[0010] Preferably, a plurality of the longitudinal connecting pipelines are provided, and the plurality of longitudinal connecting pipelines are evenly distributed along the circumference of the steel pipe pile.

[0011] Preferably, each annular shear key is provided with two groups of water outlet holes which are symmetrical in vertical direction, and each group of water outlet holes includes a plurality of water outlet holes which are arranged along the axial direction of the annular shear key.

[0012] Preferably, each annular shear key is provided with two groups of water outlet holes which are alternately arranged up and down, and each group of water outlet holes includes a plurality of water outlet holes which are arranged axially along the annular shear key.

[0013] Preferably, each annular shear key is an annular structure made of a semi-cylindrical tube.

[0014] A conductor frame comprises the pile foundation and a conductor frame body, wherein the pile foundation and the conductor frame body are connected via a grouting node.

[0015] Preferably, the shear key body includes a longitudinal connecting pipeline and a plurality of annular shear keys, wherein the plurality of annular shear keys are arranged at one end of the inner cavity of the steel pipe pile along the axial direction of the steel pipe pile, and the plurality of annular shear keys are connected through the longitudinal connecting pipeline, and the longitudinal connecting pipeline is connected to the rigid access pipe.

[0016] Preferably, a plurality of the longitudinal connecting pipelines are provided, and the plurality of longitudinal connecting pipelines are evenly distributed along the circumference of the steel pipe pile.

[0017] Preferably, two groups of water outlet holes are arranged on each annular shear key, and each group of water outlet holes includes a plurality of water outlet holes arranged along the axial direction of the annular shear key.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention provides a pile foundation with a cleanable grouting node, in which an external water source is introduced into a shear key body through a rigid access pipe, and then the water is ejected through a water outlet to clean the shear key, thereby solving the problem that the grouting node parts inside the existing pile foundation cannot be cleaned properly due to the presence of the shear key. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the in-situ working condition of the pile foundation of the present invention;

[0021] Figure 2 It is a three-dimensional schematic diagram of the structure of the pile foundation of the present invention;

[0022] Figure 3 It is a partial enlarged view of the pile foundation of the present invention;

[0023] Figure 4 is a front view of the pile foundation of the present invention;

[0024] Figure 5 is a top view of the pile foundation of the present invention;

[0025] Among them, 1. Steel pipe piles; 2. Rigid access pipes; 3. Longitudinal connecting pipelines; 4. Annular shear keys. DETAILED DESCRIPTION

[0026] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0027] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0028] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0029] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0030] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0031] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0032] Example 1

[0033] like Figures 1 to 5 As shown, the present embodiment provides a pile foundation with a washable grouting node, comprising a steel pipe pile 1, a shear key body and a rigid access pipe 2, wherein:

[0034] The shear key body is arranged at one end of the inner cavity of the steel pipe pile 1; the rigid access pipe 2 is arranged on the outer wall of the one end and is connected with the shear key body.

[0035] The free end of the rigid access pipe 2 is connected to an external water source.

[0036] A water outlet hole is arranged on the shear key body.

[0037] The rigid access pipe 2 is a semi-cylindrical pipe structure, a semi-square pipe structure or a triangular pipe structure.

[0038] In this embodiment, the shear key body is connected to the external water source through the rigid access pipe 2 and is cleaned through the water outlet, which solves the problem that the grouting nodes inside the existing pile foundation are not cleaned properly due to the presence of the shear key.

[0039] Example 2

[0040] like Figures 1 to 5 As shown, the present embodiment provides a pile foundation with a washable grouting node, comprising a steel pipe pile 1, a rigid access pipe 2, a longitudinal connecting pipe 3 and a plurality of annular shear keys 4, wherein:

[0041] A plurality of annular shear keys 4 are arranged at one end of the inner cavity of the steel pipe pile 1 along the axial direction of the steel pipe pile 1 , and the plurality of annular shear keys 4 are connected through a longitudinal connecting pipeline 3 .

[0042] The rigid access pipe 2 is arranged on the outer wall of the end of the steel pipe pile 1 and is connected to the longitudinal connection pipe 3. The free end of the rigid access pipe 2 is connected to an external water source.

[0043] Each annular shear key 4 is provided with two groups of water outlet holes which are arranged symmetrically or alternately up and down, and each group of water outlet holes includes a plurality of water outlet holes which are arranged axially along the annular shear key.

[0044] Each annular shear key 4 is an annular structure made of a semi-cylindrical tube.

[0045] The rigid access pipe 2 is a semi-cylindrical pipe structure, a semi-square pipe structure or a triangular pipe structure.

[0046] The working process of this embodiment:

[0047] After the steel pipe pile 1 is driven into the soil, most of the soil in the steel pipe pile 1 is sucked away by the water pump on the ship.

[0048] The water pump on the ship connects the hose to the rigid access pipe 2 on the steel pipe pile body, and water is injected into the rigid access pipe 2 through the high-pressure water pump. The water will be connected through the annular shear key 4 and the longitudinal connecting pipeline 3, and emerge from the holes of the annular shear key 4, thereby achieving the purpose of cleaning the mud and sand around the shear key and ensuring the cleanliness of the shear key surface.

[0049] Subsequently, the conductor frame is installed into the cleaned steel pipe piles to complete the grouting node connection operation.

[0050] Example 3

[0051] like Figures 1 to 5 As shown, the present embodiment provides a pile foundation with a washable grouting node, comprising a steel pipe pile 1, a rigid access pipe 2, a longitudinal connecting pipe 3 and a plurality of annular shear keys 4, wherein:

[0052] A plurality of annular shear keys 4 are arranged at one end of the inner cavity of the steel pipe pile 1 along the axial direction of the steel pipe pile 1 , and the plurality of annular shear keys 4 are connected through a longitudinal connecting pipeline 3 .

[0053] The rigid access pipe 2 is arranged on the outer wall of the end of the steel pipe pile 1 and is connected to the longitudinal connection pipe 3. The free end of the rigid access pipe 2 is connected to an external water source.

[0054] Each annular shear key 4 is provided with two groups of water outlet holes which are arranged symmetrically or alternately up and down, and each group of water outlet holes includes a plurality of water outlet holes which are arranged axially along the annular shear key.

[0055] Since the root of the shear key is the most difficult to clean, the emission angle of the water outlet is 30-60°. After the water outlet is discharged, even if the root is not directly washed, it can also disturb the water flow around the water outlet, and the mud and sand at the shear key can be taken away through the disturbed water flow.

[0056] Each annular shear key 4 is an annular structure made of a semi-cylindrical tube.

[0057] The rigid access pipe 2 is a semi-cylindrical pipe structure, a semi-square pipe structure or a triangular pipe structure.

[0058] The working process of this embodiment:

[0059] After the steel pipe pile 1 is driven into the soil, most of the soil in the steel pipe pile 1 is sucked away by the water pump on the ship.

[0060] The water pump on the ship connects the hose to the rigid access pipe 2 on the steel pipe pile body, and water is injected into the rigid access pipe 2 through the high-pressure water pump. The water will be connected through the annular shear key 4 and the longitudinal connecting pipeline 3, and emerge from the holes of the annular shear key 4, thereby achieving the purpose of cleaning the mud and sand around the shear key and ensuring the cleanliness of the shear key surface.

[0061] Subsequently, the conductor frame is installed into the cleaned steel pipe piles to complete the grouting node connection operation.

[0062] Example 4

[0063] like Figures 1 to 5 As shown, the present embodiment provides a pile foundation with a washable grouting node, comprising a steel pipe pile 1, a rigid access pipe 2, a plurality of longitudinal connecting pipes 3 and a plurality of annular shear keys 4, wherein:

[0064] A plurality of annular shear keys 4 are arranged at one end of the inner cavity of the steel pipe pile 1 along the axial direction of the steel pipe pile 1 .

[0065] A plurality of longitudinal connecting pipes 3 are arranged along the circumference of the steel pipe pile 1 and are used to connect a plurality of annular shear keys 4 .

[0066] The rigid access pipe 2 is arranged on the outer wall of the end portion of the steel pipe pile 1 and is connected to one of the longitudinal connecting pipes 3 .

[0067] The free end of the rigid access pipe 2 is connected to an external water source.

[0068] Each annular shear key 4 is provided with two groups of water outlet holes which are arranged symmetrically or alternately up and down, and each group of water outlet holes includes a plurality of water outlet holes which are arranged axially along the annular shear key.

[0069] Each annular shear key 4 is an annular structure made of a semi-cylindrical tube.

[0070] The rigid access pipe 2 is a semi-cylindrical pipe structure, a semi-square pipe structure or a triangular pipe structure.

[0071] The working process of this embodiment:

[0072] After the steel pipe pile 1 is driven into the soil, most of the soil in the steel pipe pile 1 is sucked away by the water pump on the ship.

[0073] The water pump on the ship connects the hose to the rigid access pipe 2 on the steel pipe pile body, and water is injected into the rigid access pipe 2 through the high-pressure water pump. The water will be connected through the annular shear key 4 and the longitudinal connecting pipeline 3, and emerge from the holes of the annular shear key 4, thereby achieving the purpose of cleaning the mud and sand around the shear key and ensuring the cleanliness of the shear key surface.

[0074] Subsequently, the conductor frame is installed into the cleaned steel pipe piles to complete the grouting node connection operation.

[0075] Example 5

[0076] like Figures 1 to 5As shown, the present embodiment provides a pile foundation with a washable grouting node, comprising a steel pipe pile 1, a rigid access pipe 2, a plurality of longitudinal connecting pipes 3 and a plurality of annular shear keys 4, wherein:

[0077] A plurality of annular shear keys 4 are arranged at one end of the inner cavity of the steel pipe pile 1 along the axial direction of the steel pipe pile 1 .

[0078] A plurality of longitudinal connecting pipes 3 are arranged along the axial direction of the steel pipe pile 1 and are used to connect a plurality of annular shear keys 4 .

[0079] The rigid access pipe 2 is arranged on the outer wall of the end of the steel pipe pile 1 and is connected to one of the longitudinal connecting pipes 3. The free end of the rigid access pipe 2 is connected to an external water source.

[0080] Each annular shear key 4 is provided with two groups of water outlet holes which are arranged symmetrically or alternately up and down, and each group of water outlet holes includes a plurality of water outlet holes which are arranged axially along the annular shear key.

[0081] Since the root of the shear key is the most difficult to clean, the emission angle of the water outlet is 30-60°. After the water outlet is discharged, even if the root is not directly washed, it can also disturb the water flow around the water outlet, and the mud and sand at the shear key can be taken away through the disturbed water flow.

[0082] Each annular shear key 4 is an annular structure made of a semi-cylindrical tube.

[0083] The rigid access pipe 2 is a semi-cylindrical pipe structure, a semi-square pipe structure or a triangular pipe structure.

[0084] The working process of this embodiment:

[0085] After the steel pipe pile 1 is driven into the soil, most of the soil in the steel pipe pile 1 is sucked away by the water pump on the ship.

[0086] The water pump on the ship connects the hose to the rigid access pipe 2 on the steel pipe pile body, and water is injected into the rigid access pipe 2 through the high-pressure water pump. The water will be connected through the annular shear key 4 and the longitudinal connecting pipeline 3, and emerge from the holes of the annular shear key 4, thereby achieving the purpose of cleaning the mud and sand around the shear key and ensuring the cleanliness of the shear key surface.

[0087] Example 6

[0088] This embodiment provides a jacket, comprising a pile foundation and a jacket frame body, wherein the pile foundation and the jacket frame body are connected via a grouting node.

[0089] The pile foundation comprises a steel pipe pile 1, a shear key body and a rigid access pipe 2, wherein:

[0090] The shear key body is arranged at one end of the inner cavity of the steel pipe pile 1; the rigid access pipe 2 is arranged on the outer wall of the one end and is connected with the shear key body.

[0091] The free end of the rigid access pipe 2 is connected to an external water source.

[0092] A water outlet hole is arranged on the shear key body.

[0093] The rigid access pipe 2 is a semi-cylindrical pipe structure, a semi-square pipe structure or a triangular pipe structure.

[0094] The working process of this embodiment:

[0095] After the steel pipe pile 1 is driven into the soil, most of the soil in the steel pipe pile 1 is sucked away by the water pump on the ship.

[0096] The water pump on the ship connects the hose to the rigid access pipe 2 on the steel pipe pile body, and water is injected into the rigid access pipe 2 through the high-pressure water pump. The water will be connected through the annular shear key 4 and the longitudinal connecting pipeline 3, and emerge from the holes of the annular shear key 4, thereby achieving the purpose of cleaning the mud and sand around the shear key and ensuring the cleanliness of the shear key surface.

[0097] Subsequently, the conductor frame is installed into the cleaned steel pipe piles to complete the grouting node connection operation.

[0098] Example 7

[0099] This embodiment provides a jacket, comprising a pile foundation and a jacket frame body, wherein the pile foundation and the jacket frame body are connected via a grouting node.

[0100] The pile foundation comprises a steel pipe pile 1, a rigid access pipe 2, a longitudinal connecting pipe 3 and a plurality of annular shear keys 4, wherein:

[0101] A plurality of annular shear keys 4 are arranged at one end of the inner cavity of the steel pipe pile 1 along the axial direction of the steel pipe pile 1 , and the plurality of annular shear keys 4 are connected through a longitudinal connecting pipeline 3 .

[0102] The rigid access pipe 2 is arranged on the outer wall of the end of the steel pipe pile 1 and is connected to the longitudinal connection pipe 3. The free end of the rigid access pipe 2 is connected to an external water source.

[0103] Each annular shear key 4 is provided with two groups of water outlet holes which are arranged symmetrically or alternately up and down, and each group of water outlet holes includes a plurality of water outlet holes which are arranged axially along the annular shear key.

[0104] Each annular shear key 4 is an annular structure made of a semi-cylindrical tube.

[0105] The rigid access pipe 2 is a semi-cylindrical pipe structure, a semi-square pipe structure or a triangular pipe structure.

[0106] The working process of this embodiment:

[0107] After the steel pipe pile 1 is driven into the soil, most of the soil in the steel pipe pile 1 is sucked away by the water pump on the ship.

[0108] The water pump on the ship connects the hose to the rigid access pipe 2 on the steel pipe pile body, and water is injected into the rigid access pipe 2 through the high-pressure water pump. The water will be connected through the annular shear key 4 and the longitudinal connecting pipeline 3, and emerge from the holes of the annular shear key 4, thereby achieving the purpose of cleaning the mud and sand around the shear key and ensuring the cleanliness of the shear key surface.

[0109] Subsequently, the conductor frame is installed into the cleaned steel pipe piles to complete the grouting node connection operation.

[0110] Example 8

[0111] This embodiment provides a jacket, comprising a pile foundation and a jacket frame body, wherein the pile foundation and the jacket frame body are connected via a grouting node.

[0112] The pile foundation comprises a steel pipe pile 1, a rigid access pipe 2, a longitudinal connecting pipe 3 and a plurality of annular shear keys 4, wherein:

[0113] A plurality of annular shear keys 4 are arranged at one end of the inner cavity of the steel pipe pile 1 along the axial direction of the steel pipe pile 1 , and the plurality of annular shear keys 4 are connected through a longitudinal connecting pipeline 3 .

[0114] The rigid access pipe 2 is arranged on the outer wall of the end of the steel pipe pile 1 and is connected to the longitudinal connection pipe 3. The free end of the rigid access pipe 2 is connected to an external water source.

[0115] Each annular shear key 4 is provided with two groups of water outlet holes which are arranged symmetrically or alternately up and down, and each group of water outlet holes includes a plurality of water outlet holes which are arranged axially along the annular shear key.

[0116] Since the root of the shear key is the most difficult to clean, the emission angle of the water outlet is 30-60°. After the water outlet is discharged, even if the root is not directly washed, it can also disturb the water flow around the water outlet, and the mud and sand at the shear key can be taken away through the disturbed water flow.

[0117] Each annular shear key 4 is an annular structure made of a semi-cylindrical tube.

[0118] The rigid access pipe 2 is a semi-cylindrical pipe structure, a semi-square pipe structure or a triangular pipe structure.

[0119] The working process of this embodiment:

[0120] After the steel pipe pile 1 is driven into the soil, most of the soil in the steel pipe pile 1 is sucked away by the water pump on the ship.

[0121] The water pump on the ship connects the hose to the rigid access pipe 2 on the steel pipe pile body, and water is injected into the rigid access pipe 2 through the high-pressure water pump. The water will be connected through the annular shear key 4 and the longitudinal connecting pipeline 3, and emerge from the holes of the annular shear key 4, thereby achieving the purpose of cleaning the mud and sand around the shear key and ensuring the cleanliness of the shear key surface.

[0122] Subsequently, the conductor frame is installed into the cleaned steel pipe piles to complete the grouting node connection operation.

[0123] Example 9

[0124] The present embodiment provides a jacket frame, comprising a pile foundation and a jacket frame body, wherein the pile foundation and the jacket frame body are connected via a grouting node.

[0125] The pile foundation comprises a steel pipe pile 1, a rigid access pipe 2, a plurality of longitudinal connecting pipes 3 and a plurality of annular shear keys 4, wherein:

[0126] A plurality of annular shear keys 4 are arranged at one end of the inner cavity of the steel pipe pile 1 along the axial direction of the steel pipe pile 1 .

[0127] A plurality of longitudinal connecting pipes 3 are arranged along the circumference of the steel pipe pile 1 and are used to connect a plurality of annular shear keys 4 .

[0128] The rigid access pipe 2 is arranged on the outer wall of the end of the steel pipe pile 1 and is connected to one of the longitudinal connecting pipes 3. The free end of the rigid access pipe 2 is connected to an external water source.

[0129] Each annular shear key 4 is provided with two groups of water outlet holes which are arranged symmetrically or alternately up and down, and each group of water outlet holes includes a plurality of water outlet holes which are arranged axially along the annular shear key.

[0130] Each of the annular shear keys 4 is an annular structure made of a semi-cylindrical tube.

[0131] The rigid access pipe 2 is a semi-cylindrical pipe structure, a semi-square pipe structure or a triangular pipe structure.

[0132] The working process of this embodiment:

[0133] After the steel pipe pile 1 is driven into the soil, most of the soil in the steel pipe pile 1 is sucked away by the water pump on the ship.

[0134] The water pump on the ship connects the hose to the rigid access pipe 2 on the steel pipe pile body, and water is injected into the rigid access pipe 2 through the high-pressure water pump. The water will be connected through the annular shear key 4 and the longitudinal connecting pipeline 3, and emerge from the holes of the annular shear key 4, thereby achieving the purpose of cleaning the mud and sand around the shear key and ensuring the cleanliness of the shear key surface.

[0135] Subsequently, the conductor frame is installed into the cleaned steel pipe piles to complete the grouting node connection operation.

[0136] Example 10

[0137] The present embodiment provides a jacket frame, comprising a pile foundation and a jacket frame body, wherein the pile foundation and the jacket frame body are connected via a grouting node.

[0138] The pile foundation comprises a steel pipe pile 1, a rigid access pipe 2, a plurality of longitudinal connecting pipes 3 and a plurality of annular shear keys 4, wherein:

[0139] A plurality of annular shear keys 4 are arranged at one end of the inner cavity of the steel pipe pile 1 along the axial direction of the steel pipe pile 1 .

[0140] A plurality of longitudinal connecting pipes 3 are arranged along the circumference of the steel pipe pile 1 and are used to connect a plurality of annular shear keys 4 .

[0141] The rigid access pipe 2 is arranged on the outer wall of the end of the steel pipe pile 1 and is connected to one of the longitudinal connecting pipes 3. The free end of the rigid access pipe 2 is connected to an external water source.

[0142] Each annular shear key 4 is provided with two groups of water outlet holes which are arranged symmetrically or alternately up and down, and each group of water outlet holes includes a plurality of water outlet holes which are arranged axially along the annular shear key.

[0143] Since the root of the shear key is the most difficult to clean, the emission angle of the water outlet is 30-60°. After the water outlet is discharged, even if the root is not directly washed, it can also disturb the water flow around the water outlet, and the mud and sand at the shear key can be taken away through the disturbed water flow.

[0144] Each of the annular shear keys 4 is an annular structure made of a semi-cylindrical tube.

[0145] The rigid access pipe 2 is a semi-cylindrical pipe structure, a semi-square pipe structure or a triangular pipe structure.

[0146] The working process of this embodiment:

[0147] After the steel pipe pile 1 is driven into the soil, most of the soil in the steel pipe pile 1 is sucked away by the water pump on the ship.

[0148] The water pump on the ship connects the hose to the rigid access pipe 2 on the steel pipe pile body, and water is injected into the rigid access pipe 2 through the high-pressure water pump. The water will be connected through the annular shear key 4 and the longitudinal connecting pipeline 3, and emerge from the holes of the annular shear key 4, thereby achieving the purpose of cleaning the mud and sand around the shear key and ensuring the cleanliness of the shear key surface.

[0149] Subsequently, the conductor frame is installed into the cleaned steel pipe piles to complete the grouting node connection operation.

[0150] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A pile foundation with washable grouting nodes, characterized in that: It comprises a steel pipe pile (1), a shear key body and a rigid access pipe (2), wherein: The shear key body is arranged at one end of the inner cavity of the steel pipe pile (1); the rigid access pipe (2) is arranged on the outer wall of the one end and is connected to the shear key body; the free end of the rigid access pipe (2) is connected to an external water source; and a water outlet hole is provided on the shear key body.

2. A pile foundation with washable grouting nodes according to claim 1, characterized in that: The shear key body comprises a longitudinal connecting pipeline (3) and a plurality of annular shear keys (4), wherein the plurality of annular shear keys (4) are arranged at one end of the inner cavity of the steel pipe pile (1) along the axial direction of the steel pipe pile (1), and the plurality of annular shear keys (4) are connected via the longitudinal connecting pipeline (3), and the longitudinal connecting pipeline (3) is connected to the rigid access pipe (2).

3. A pile foundation with washable grouting nodes according to claim 2, characterized in that: A plurality of longitudinal connecting pipelines (3) are provided, and the plurality of longitudinal connecting pipelines (3) are evenly distributed along the circumference of the steel pipe pile (1).

4. A pile foundation with washable grouting nodes according to claim 2, characterized in that: Each annular shear key (4) is provided with two groups of water outlet holes which are symmetrical in upper and lower directions, and each group of water outlet holes comprises a plurality of water outlet holes which are arranged along the axial direction of the annular shear key.

5. A pile foundation with washable grouting nodes according to claim 2, characterized in that: Each annular shear key (4) is provided with two groups of water outlet holes which are alternately arranged up and down, and each group of water outlet holes comprises a plurality of water outlet holes which are arranged along the axial direction of the annular shear key.

6. A pile foundation with washable grouting nodes according to claim 2, characterized in that: Each annular shear key (4) is an annular structure made of a semi-cylindrical tube.

7. A catheter rack, characterized in that: It comprises the pile foundation and the jacket frame body as claimed in claim 1, wherein the pile foundation and the jacket frame body are connected via a grouting node.

8. The pipe rack according to claim 7, characterized in that: The shear key body comprises a longitudinal connecting pipeline (3) and a plurality of annular shear keys (4), wherein the plurality of annular shear keys (4) are arranged at one end of the inner cavity of the steel pipe pile (1) along the axial direction of the steel pipe pile (1), and the plurality of annular shear keys (4) are connected via the longitudinal connecting pipeline (3), and the longitudinal connecting pipeline (3) is connected to the rigid access pipe (2).

9. The pipe rack according to claim 8, characterized in that: A plurality of longitudinal connecting pipelines (3) are provided, and the plurality of longitudinal connecting pipelines (3) are evenly distributed along the circumference of the steel pipe pile (1).

10. The pipe rack according to claim 8, characterized in that: Two groups of water outlet holes are arranged on each annular shear key (4), and each group of water outlet holes includes a plurality of water outlet holes arranged along the axial direction of the annular shear key.

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