A wing support structure and a precast pile segment

Abstract

The utility model provides a kind of wing structure and prefabricated pile section, belong to prefabricated pile construction technical field, including wing body and pile section body, there are several installation modules along the center line circular array of pile section body, each installation module includes second through-hole, second through-hole is rotatably installed with wing body, during construction, first, wing body is temporarily fixed in the state of wing body not unfolding by sheet iron, then the pile section body of fixed wing body is placed in pile section, specifically can be the upper end surface of the pile section body of fixed wing body and the upper section pile integrally formed, after lower end surface and lower section pile integrally formed, it is placed in pile foundation, it can also be placed in pile foundation after being set by multiple pile section bodies along the axial direction of whole pile, then grout is injected in pile foundation, after injection is completed, grout is wrapped pile section body on outside, finally, wing body is rotated to unfolded state to push all wing body to the outer wall of pile section body.

Description

Technical Field

[0001] This utility model belongs to the field of precast pile construction technology, and in particular relates to a support structure and a precast pile section. Background Technology

[0002] Precast piles have become a widely used foundation type in construction, bridge, and slope protection projects due to their advantages such as standardized production and convenient construction. In order to improve the tensile bearing capacity, horizontal force resistance, lateral stiffness of a single pile, or increase the pile-soil interaction area, the common practice in engineering is to add a support wing to the pile body.

[0003] Existing support structures are typically plate-shaped. When plate-shaped supports are installed on precast piles, they are usually installed by creating a pre-drilled hole in the precast pile and then rotating the support into the pre-drilled hole. When the support needs to be opened after the precast pile is placed into the pile foundation, the support will rotate out of the precast pile body after being opened in the pre-drilled hole. That is, the support is no longer filled in the pre-drilled hole. At this time, the axial support force of the precast pile body will be weakened due to the lack of filling and support of the support in the precast hole, resulting in poor stability of the precast pile after construction. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a wing structure and a precast pile section to solve the problem of poor stability of the precast pile after the wing structure is spread out on the precast pile in the prior art.

[0005] To achieve the above and other related objectives, this utility model provides a support wing structure, the support wing structure comprising:

[0006] The support wing body is fan-shaped;

[0007] The upper end face of the support wing body is arc-shaped;

[0008] The lower end face of the support wing body is arc-shaped, the central axis of the lower end face of the support wing body coincides with the central axis of the upper end face of the support wing body, and the radius of the lower end face of the support wing body is greater than the radius of the upper end face of the support wing body.

[0009] Alternatively, the upper and lower parts of the support body may have the same thickness.

[0010] This utility model also provides a precast pile section, including the aforementioned wing structure, wherein the precast pile section includes:

[0011] The pile section body has a first through hole penetrating its upper and lower end faces;

[0012] A plurality of installation modules are arranged in a circular array along the center line of the pile section body. Each installation module includes a second through hole, which is opened on the pile section body and penetrates the side wall of the first through hole and the outer side wall of the pile section body.

[0013] A support wing body is rotatably installed inside the second through hole. The rotation axis of the support wing body coincides with the central axis of the upper end face of the support wing body. The rotation axis of the support wing body is perpendicular to the center line of the pile section body, and the rotation axis of the support wing body is located inside the second through hole.

[0014] As an optional solution, the upper end face of the second through hole is arc-shaped, and the upper end face of the second through hole is in contact with the upper end face of the support wing body;

[0015] The lower end face of the second through hole is an arc-shaped surface, and the lower end face of the second through hole is in contact with the lower end face of the support body.

[0016] As an optional solution, the two end faces of the support body in the width direction are respectively fitted to the two side walls of the second through hole.

[0017] As an optional solution, the length of the second through hole is less than the length of the lower end face of the support body.

[0018] As an optional solution, the mounting module also includes a mounting slot, a spring, and a limiting block;

[0019] The mounting groove is formed on the lower end face of the second through hole. One end of the spring is fixedly connected to the lower end of the mounting groove, and the other end of the spring is fixedly connected to the limit block. The extension and retraction direction of the spring is consistent with the axial direction of the mounting groove.

[0020] A limiting groove is provided on the lower end face of the support wing body;

[0021] The rotation axis of the support wing body is located above the second through hole. When the support wing body rotates to the unfolded state in the second through hole, the limiting block extends into the limiting groove under the action of the spring.

[0022] As an optional solution, when the support wing body is not deployed, the maximum distance the support wing body extends into the first through hole is z;

[0023] The cross-section of the first through hole is square, and one end face of the support wing body is in contact with one side wall of the square first through hole;

[0024] The sidewall of the square first through hole that fits into the support wing body is the first sidewall, and the sidewall of the square first through hole that is parallel to the first sidewall is the second sidewall.

[0025] The distance between the other end face of the support wing body and the second sidewall is greater than or equal to z.

[0026] As described above, the wing structure and precast pile section of this utility model have at least the following beneficial effects:

[0027] 1. Because the support body of this utility model is fan-shaped, the rotation axis of the support body coincides with the central axis of the upper end face of the support body, and the length of the second through hole is less than the length of the lower end face of the support body, the support body can completely fill the second through hole when it is not unfolded and after it is rotated to the unfolded state during construction. The support body provides axial support to the pile section body by sealing the second through hole, thereby ensuring that the axial bearing capacity of the pile section body will not be weakened when the support body is rotated to the unfolded state. The structure is ingeniously designed and the pile section body has good stability after construction.

[0028] 2. When the support wing body rotates from the undeployed state to the deployed state, the spring resets the limiting block from the compressed state to the natural state, thus allowing the limiting block to extend into the limiting groove. This ensures that the support wing body can automatically maintain the deployed state after rotating to the deployed state, and will not be squeezed back to the undeployed state by the slurry wrapped around the outside of the pile section body. The structure is ingeniously designed.

[0029] 3. This utility model can control the distance between the support wing body and the second side wall to adjust the area of ​​the support wing body located outside the pile section body when the support wing body rotates from the undeployed state to the deployed state. When the support wing body is not deployed, the maximum distance the support wing body extends into the first through hole is z. When the distance between the support wing body and the second side wall is equal to z, the area of ​​the support wing body located outside the pile section body is the largest. At this time, the bearing capacity of the support wing body is the best. Thus, the stability of the pile section body can be enhanced to the greatest extent by adjusting the distance between the support wing body and the second side wall. Attached Figure Description

[0030] Figure 1 The diagram shown is a three-dimensional structural schematic of the support wing body of this utility model;

[0031] Figure 2 The diagram shown is a three-dimensional structural schematic of the pile section body of this utility model;

[0032] Figure 3 The diagram shows a cross-sectional view of the internal structure of the pile joint body and the support wing body of this utility model.

[0033] Figure 4 This diagram shows the dimensions of the maximum distance the support wing body of this utility model extends into the first through hole.

[0034] Figure 5 The diagram shows the structure of the support wing body of this utility model in its undeployed state.

[0035] Figure 6 The diagram shown is a structural schematic of the deployed support wing body of this utility model.

[0036] In the diagram: 101, the main body of the support wing;

[0037] 201. Pile section body; 202. First through hole;

[0038] 301, Second through hole; 302, Mounting groove; 303, Spring; 304, Limiting block; 305, Limiting groove. Detailed Implementation

[0039] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0040] Please see Figures 1 to 6 It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0041] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0042] Please see Figure 1 This utility model provides a support wing structure, the support wing structure comprising:

[0043] Support wing body 101, the support wing body 101 is fan-shaped;

[0044] The upper end face of the support wing body 101 is arc-shaped;

[0045] The lower end face of the support wing body 101 is arc-shaped. The central axis of the lower end face of the support wing body 101 coincides with the central axis of the upper end face of the support wing body 101, and the radius of the lower end face of the support wing body 101 is greater than the radius of the upper end face of the support wing body 101.

[0046] In this embodiment, since the shape of the support wing body 101 is fan-shaped, when the fan-shaped support wing body 101 is spread out in the pile foundation, the central axis of the upper end face of the support wing body 101 rotates as the axis of rotation, thereby spreading out in the pile foundation.

[0047] Because the central axis of the lower end face of the support wing body 101 coincides with the central axis of the upper end face of the support wing body 101, and the support wing body 101 rotates with the central axis of the upper end face as the axis of rotation, the upper end face of the support wing body 101 will only rotate and will not move along the horizontal plane when the support wing body 101 rotates, which makes it easy to install the support wing body 101 in the precast pile section. The structure is ingeniously designed.

[0048] Please see Figure 1 The upper and lower parts of the support wing body 101 have the same thickness.

[0049] In this embodiment, the thickness of the support body 101 is the same, that is, the distance between each position in the width direction of the support body 101 is equal, and the rotation axis of the support body 101 is set parallel to the width direction of the support body 101.

[0050] Please see Figure 2 , Figure 3 , Figure 5 and Figure 6 The present invention also provides a precast pile section, including the aforementioned wing structure, wherein the precast pile section comprises:

[0051] The pile section body 201 has a first through hole 202 penetrating through its upper and lower end faces;

[0052] A plurality of installation modules are arranged in a circular array along the center line of the pile section body 201. Each installation module includes a second through hole 301, which is formed on the pile section body 201 and penetrates the side wall of the first through hole 202 and the outer side wall of the pile section body 201.

[0053] A support wing body 101 is rotatably installed in the second through hole 301. The rotation axis of the support wing body 101 coincides with the central axis of the upper end face of the support wing body 101. The rotation axis of the support wing body 101 is perpendicular to the center line of the pile section body 201, and the rotation axis of the support wing body 101 is located inside the second through hole 301.

[0054] When the support wing body 101 is not deployed, a portion of the support wing body 101 is located within the pile section body 201;

[0055] During the process of the support wing body 101 rotating to the unfolded state, the support wing body 101 continuously closes the second through hole 301, and a part of the support wing body 101 is located outside the pile section body 201.

[0056] The method of rotating the wing body 101 to the unfolded state is not limited here. It can be achieved by gradually hammering and sinking a steel pipe with the same cross-section as the first through hole 202 into the first through hole 202 to push the wing body 101 toward the outer wall of the pile section body 201. Alternatively, the wing body 101 can be pushed toward the outer wall of the pile section body 201 in other ways.

[0057] In this embodiment, the support wing body 101 is first temporarily fixed in its undeployed state. This can be achieved by temporarily fixing the support wing body 101 in its undeployed state using sheet metal. Specifically, a portion of the sheet metal is adhered to the outer wall of the pile section body 201, and the other portion is adhered to the support wing body 101. When the sheet metal temporarily fixes the support wing body 101 in its undeployed state, the support wing body 101 and the second through hole 301 are flush with the outer wall of the pile section body 201. At this time, the support wing body 101 completely fills the second through hole 301. Since the shape of the support wing body 101 is... In a fan-shaped configuration, the wing body 101 is inclined and extends into the first through hole 202. All the wing bodies 101 are temporarily fixed in the undeployed state using the above method before construction. During construction, the upper end face of the pile section body 201 can be integrally formed with the upper pile section, and the lower end face can be integrally formed with the lower pile section and then placed in the pile foundation. Alternatively, multiple pile sections 201 can be arrayed along the axial direction of the entire pile and then placed in the pile foundation. After the wing body 101 is rotated to the deployed state, the wing body 101 still completely fills the second through hole 301, and a part of the wing body 101 is located outside the pile section body 201.

[0058] Before and after deployment, the support wing body 101 of this utility model can completely fill the second through hole 301. The support wing body 101 provides axial support to the pile section body 201 by closing the second through hole 301, thereby ensuring that the axial bearing capacity of the pile section body 201 will not be weakened as the support wing body 101 rotates to the deployed state. The structure is ingeniously designed and the pile section body 201 has good stability after construction.

[0059] Please see Figure 2 and Figure 3 The upper end face of the second through hole 301 is arc-shaped, and the upper end face of the second through hole 301 is in contact with the upper end face of the support body 101.

[0060] The lower end face of the second through hole 301 is an arc-shaped surface, and the lower end face of the second through hole 301 is in contact with the lower end face of the support body 101.

[0061] In this embodiment, after all the wing bodies 101 are temporarily fixed in the undeployed state by sheet metal, the upper end face of the pile section body 201 can be integrally formed with the upper pile section, and the lower end face can be integrally formed with the lower pile section and placed in the pile foundation. Alternatively, multiple pile section bodies 201 can be arrayed along the axial direction of the entire pile and placed in the pile foundation. Then, grout is injected into the pile foundation. After the injection is completed, the grout wraps the pile section body 201 on the outside. Then, during the process of the wing body 101 rotating from the undeployed state to the deployed state, the upper and lower end faces of the wing body 101 are in contact with the upper and lower end faces of the second through hole 301.

[0062] During the process of rotating the support wing body 101 from the undeployed state to the deployed state, the upper and lower end faces of the second through hole 301 are always in contact with the upper and lower end faces of the support wing body 101. This ensures that the support wing body 101 seals the upper and lower end faces of the second through hole 301 during the deployment process, so that the slurry will not flow into the pile section body 201 from the upper and lower end faces of the second through hole 301.

[0063] Please see Figures 1 to 3 The two end faces of the support body 101 in the width direction are respectively attached to the two side walls of the second through hole 301.

[0064] In this embodiment, after all the wing bodies 101 are temporarily fixed in the undeployed state by sheet metal, the upper end face of the pile section body 201 can be integrally formed with the upper pile section, and the lower end face can be integrally formed with the lower pile section and placed in the pile foundation. Alternatively, multiple pile sections 201 can be arrayed along the axial direction of the entire pile and placed in the pile foundation. Then, grout is injected into the pile foundation. After the injection is completed, the grout wraps the pile section body 201 on the outside. Then, during the process of the wing body 101 rotating from the undeployed state to the deployed state, the two end faces of the wing body 101 in the width direction are respectively in contact with the two side walls of the second through hole 301.

[0065] During the process of rotating the support wing body 101 from the undeployed state to the deployed state, the two end faces of the support wing body 101 in the width direction are respectively in contact with the two side walls of the second through hole 301. This ensures that the support wing body 101 seals the two side walls of the second through hole 301 during the deployment process, so that the slurry will not flow into the pile section body 201 from the two side walls of the second through hole 301.

[0066] Please see Figure 2 and Figure 3 The length of the second through hole 301 is less than the length of the lower end face of the support body 101.

[0067] In this embodiment, during the process of rotating the wing body 101 from the undeployed state to the deployed state, the lower end face of the wing body 101 contacts and rotates with the lower end face of the second through hole 301, and the lower end face of the wing body 101 after rotation remains in contact with the lower end face of the second through hole 301.

[0068] Please see Figure 2 and Figure 3 The installation module also includes an installation slot 302, a spring 303, and a limiting block 304;

[0069] The mounting groove 302 is formed on the lower end face of the second through hole 301. One end of the spring 303 is fixedly connected to the lower end of the mounting groove 302, and the other end of the spring 303 is fixedly connected to the limit block 304. The extension and retraction direction of the spring 303 is consistent with the axial direction of the mounting groove 302.

[0070] A limiting groove 305 is provided on the lower end face of the support wing body 101;

[0071] The rotation axis of the support wing body 101 is located above the second through hole 301. When the support wing body 101 rotates to the unfolded state in the second through hole 301, the limiting block 304 extends into the limiting groove 305 under the action of the spring 303.

[0072] In this embodiment, after all the support wing bodies 101 are temporarily fixed in the undeployed state by sheet metal, the upper end face of the pile section body 201 can be integrally formed with the upper pile section, and the lower end face can be integrally formed with the lower pile section and placed in the pile foundation. Alternatively, multiple pile section bodies 201 can be arrayed along the axial direction of the entire pile and placed in the pile foundation. At this time, the lower end face of the support wing body 101 presses the limiting block 304 into the mounting groove 302, and the limiting block 304 compresses the spring 303 to the compressed state. Grout is injected into the pile foundation. After the injection is completed, the grout surrounds the outside. When the supporting wing body 101 rotates from the undeployed state to the deployed state, the supporting wing body 101 pushes away the temporarily fixed iron sheet and continues to push towards the outer wall of the pile section body 201 until it rotates to the axial direction of the limiting groove 305 on the supporting wing body 101 so that the extension direction of the spring 303 is consistent with the extension direction of the spring 303. At this time, the spring 303 extends from the compressed state to the natural state, and the limiting block 304 extends into the limiting groove 305 to lock it when the spring 303 extends from the compressed state to the natural state. That is, the state of the supporting wing body 101 at this time is the deployed state.

[0073] When the support wing body 101 rotates from the undeployed state to the deployed state, the spring 303 resets from the compressed state to the natural state, allowing the limiting block 304 to extend into the limiting groove 305. This allows the support wing body 101 to automatically maintain the deployed state after rotating to the deployed state, and it will not be squeezed back to the undeployed state by the slurry wrapped around the outside of the pile section body 201. The structure is ingeniously designed.

[0074] Please see Figure 2 , Figure 4 and Figure 5 When the support wing body 101 is not deployed, the maximum distance that the support wing body 101 extends into the first through hole 202 is z.

[0075] The first through hole 202 has a square cross-section, and one end face of the support wing body 101 is in contact with one side wall of the square first through hole 202;

[0076] The sidewall of the square first through hole 202 that fits with the support wing body 101 is the first sidewall, and the sidewall of the square first through hole 202 that is parallel to the first sidewall is the second sidewall.

[0077] The distance between the other end face of the support body 101 and the second sidewall is greater than or equal to z.

[0078] In this embodiment, since one end face of the support wing body 101 is in contact with the first side wall, when the distance between the other end face of the support wing body 101 and the second side wall is equal to z, during the process of the support wing body 101 rotating from the undeployed state to the deployed state, the area of ​​the support wing body 101 located in the outer part of the pile section body 201 is the largest. In this embodiment, the distance between the other end face of the support wing body 101 and the second side wall is z.

[0079] As the distance between the other end face of the support wing body 101 and the second sidewall is greater than z and gradually increases, during the process of the support wing body 101 rotating from the undeployed state to the deployed state, the area of ​​the support wing body 101 located in the outer part of the pile section body 201 gradually decreases.

[0080] This invention can control the distance between the other end face of the support wing body 101 and the second side wall to adjust the area of ​​the support wing body 101 located outside the pile section body 201 when the support wing body 101 rotates from the undeployed state to the deployed state. When the area is the largest, that is, when the distance between the other end face of the support wing body 101 and the second side wall is equal to z, the area of ​​the support wing body 101 located outside the pile section body 201 is the largest. At this time, the bearing capacity of the support wing body 101 is the best, thereby maximizing the stability of the pile section body 201.

[0081] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A wing-support structure, characterized in that, The support structure includes: The support wing body is fan-shaped; The upper end face of the support wing body is arc-shaped; The lower end face of the support wing body is arc-shaped, the central axis of the lower end face of the support wing body coincides with the central axis of the upper end face of the support wing body, and the radius of the lower end face of the support wing body is greater than the radius of the upper end face of the support wing body.

2. The wing structure according to claim 1, characterized in that: The upper and lower parts of the support wing body have the same thickness.

3. A precast pile section, comprising a wing structure as described in any one of claims 1-2, characterized in that: The precast pile segment includes: The pile section body has a first through hole penetrating its upper and lower end faces; A plurality of installation modules are arranged in a circular array along the center line of the pile section body. Each installation module includes a second through hole, which is opened on the pile section body and penetrates the side wall of the first through hole and the outer side wall of the pile section body. A support wing body is rotatably installed inside the second through hole. The rotation axis of the support wing body coincides with the central axis of the upper end face of the support wing body. The rotation axis of the support wing body is perpendicular to the center line of the pile section body, and the rotation axis of the support wing body is located inside the second through hole.

4. A precast pile section according to claim 3, characterized in that: The upper end face of the second through hole is arc-shaped, and the upper end face of the second through hole is in contact with the upper end face of the support wing body; The lower end face of the second through hole is an arc-shaped surface, and the lower end face of the second through hole is in contact with the lower end face of the support body.

5. A precast pile section according to claim 4, characterized in that: The two end faces of the support wing body in the width direction are respectively attached to the two side walls of the second through hole.

6. A precast pile section according to claim 5, characterized in that: The length of the second through hole is less than the length of the lower end face of the support body.

7. A precast pile section according to claim 6, characterized in that: The installation module also includes an installation slot, a spring, and a limiting block; The mounting groove is formed on the lower end face of the second through hole. One end of the spring is fixedly connected to the lower end of the mounting groove, and the other end of the spring is fixedly connected to the limit block. The extension and retraction direction of the spring is consistent with the axial direction of the mounting groove. A limiting groove is provided on the lower end face of the support wing body; The rotation axis of the support wing body is located above the second through hole. When the support wing body rotates to the unfolded state in the second through hole, the limiting block extends into the limiting groove under the action of the spring.

8. A precast pile section according to claim 3, characterized in that: When the support wing body is not deployed, the maximum distance the support wing body extends into the first through hole is z; The cross-section of the first through hole is square, and one end face of the support wing body is in contact with one side wall of the square first through hole; The sidewall of the square first through hole that fits into the support wing body is the first sidewall, and the sidewall of the square first through hole that is parallel to the first sidewall is the second sidewall. The distance between the other end face of the support wing body and the second sidewall is greater than or equal to z.

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