Pile foundation pile head forming device
By using a pile head forming device with a circular casing and a malleable plate inside the pile hole, the problem of irregular protrusion of the pile head is solved, and pile head forming without decoration and grinding is achieved, ensuring the appearance quality.
Patent Information
- Application Number
- CN202423240949.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-26
AI Technical Summary
After the existing pile heads are formed, irregular protrusions need to be decorated and polished. The vibrations during decoration can damage the pile heads and affect their appearance quality.
A pile head forming device for pile foundations, which uses a circular casing, a malleable plate, and a support assembly, forms the pile head by placing a circular casing and a malleable plate inside the pile hole and filling the space between them with concrete, thus avoiding irregular protrusions.
To prevent irregular protrusions during pile head formation, avoid decoration and grinding, and ensure the appearance quality of the pile head.
Smart Images
Figure CN223620897U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge pile foundation protection technology, and in particular to a pile head forming device. Background Technology
[0002] A pile is a load-bearing component that transfers all or part of the load of a building to the foundation soil and has a certain rigidity and bending resistance. Its cross-sectional dimension is much smaller than its length. A pile foundation consists of two parts: a group of piles buried in the foundation and a pile cap that unites the piles to work together. The function of a pile foundation is to transfer the load to a deeper soil layer with good bearing capacity to meet the requirements of bearing capacity and settlement. Pile foundations have high bearing capacity, can withstand vertical loads and horizontal loads, can resist uplift loads and vibration loads, and are the most widely used form of deep foundation. Pile foundations significantly improve the efficiency of building construction and lay a relatively solid foundation for the quality of construction in modern construction processes, thus promoting the overall improvement of construction technology in my country to a certain extent.
[0003] In the existing technology, pile foundations are formed by the construction method of cast-in-place piles. First, a hole is drilled on the construction site to the required depth, and then a steel casing is inserted to form a pile hole. The steel cage is then placed inside the steel casing and concrete is poured. After the concrete has set and its strength meets the requirements of the design drawings and specifications, the steel casing is pulled out.
[0004] However, when using the cast-in-place pile construction method, the drill bit of the drilling rig enters the soil, and the soil contains sand, stones and other factors, resulting in an uneven cutting surface. Irregular concave surfaces or pits are formed on the pile hole wall. After the steel casing is pulled out, the poured concrete comes into contact with the pile hole wall, which will cause irregular protrusions on the surface of the pile head. The pile head needs to be ground and finished later. The vibration of the later finishing will damage the exposed pile head and affect the appearance quality of the exposed pile head. Utility Model Content
[0005] This utility model provides a pile head forming device to solve the technical problem in the related art that after the existing pile head is formed, the irregular protrusions on the surface of the pile head need to be decorated and polished, and the vibration of decoration will cause damage to the pile head, affecting the appearance quality of the pile head.
[0006] This utility model embodiment provides a pile head forming device for pile foundations, including:
[0007] A circular casing is provided inside the pile foundation hole;
[0008] A malleable sheet, which is bent into a cylindrical shape and disposed inside the circular protective tube;
[0009] A support assembly is disposed between the circular casing and the malleable plate; and the malleable plate is used to fill concrete to form a pile head.
[0010] In some embodiments, the support component includes:
[0011] Multiple mounting plates are provided at the top of the hollow portion between the circular protective cylinder and the malleable plate;
[0012] Multiple end-sealing plates are disposed at the bottom of the hollow portion between the circular protective cylinder and the malleable plate, for sealing the bottom of the hollow portion.
[0013] In some embodiments, the support component further includes:
[0014] Multiple support pads are arranged horizontally from top to bottom between multiple mounting plates and multiple end caps.
[0015] In some embodiments, the support component further includes:
[0016] The filler is placed in the middle of the hollow portion between the circular casing and the plastic plate.
[0017] In some embodiments, the pile head forming device further includes:
[0018] A support frame is provided at the top of the pile foundation hole;
[0019] Multiple conduits, which are disposed on the support frame, are used to pour concrete into the plastic slab.
[0020] In some embodiments, the pile head forming device further includes:
[0021] A reinforcing cage, wherein the reinforcing cage is disposed inside the plastic slab.
[0022] In some embodiments, the support frame is a square frame.
[0023] In some embodiments, there are four conduits, which are fixed at the four apex corners of the support frame, and the outlets of the four conduits extend into the pile hole and are located above the bottom of the pile hole.
[0024] In some embodiments, the four conduits are detachably connected to the support frame.
[0025] In some embodiments, the circular protective sleeve is made of steel, and the malleable plate is made of iron.
[0026] The beneficial effects of the technical solution provided by this utility model include:
[0027] This utility model provides a pile head forming device, which includes a circular protective cylinder, a malleable plate, and a support assembly. The circular protective cylinder is disposed within the pile hole, and the malleable plate is bent into a cylindrical shape and disposed within the circular protective cylinder. The support assembly is disposed between the circular protective cylinder and the malleable plate, and the malleable plate is used to fill concrete to form the pile head. This pile head forming device prevents irregular protrusions during pile head formation, eliminates the need for surface finishing and grinding of the pile head, and avoids damage to the pile head, thus ensuring the appearance quality of the pile head. Attached Figure Description
[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0029] Figure 1 A front elevation view of a pile head forming device provided in an embodiment of this utility model;
[0030] Figure 2 A top view of the structure of a pile head forming device provided in an embodiment of this utility model;
[0031] Figure 3 This is a schematic diagram of a pile foundation after concrete has been poured, provided as an embodiment of the present invention.
[0032] Figure 4 A longitudinal section schematic diagram of the support component provided in an embodiment of this utility model;
[0033] Figure label:
[0034] 1. Pile foundation holes;
[0035] 2. Circular protective sleeve;
[0036] 3. Plastic plate;
[0037] 4. Support components; 41. Ladder plate; 42. End cap plate; 43. Support pad; 44. Filler;
[0038] 5. Support frame;
[0039] 6. Catheter;
[0040] 7. Reinforcing cage. Detailed Implementation
[0041] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0042] This utility model provides a pile head forming device, which can solve the technical problem that after the existing pile head is formed, irregular protrusions on the surface of the pile head need to be decorated and polished, and the vibration of decoration will cause damage to the pile head, affecting the appearance quality of the pile head.
[0043] Figure 1 A pile head forming device provided in this embodiment of the utility model includes: a circular casing 2, a malleable plate 3, and a support component 4.
[0044] The circular casing 2 is disposed inside the pile foundation hole 1. The malleable plate 3 is bent into a cylindrical shape and disposed inside the circular casing 2. The support assembly 4 is disposed between the circular casing 2 and the malleable plate 3, and is used to fill the malleable plate 3 with concrete to form the pile head.
[0045] The pile head forming device of this utility model includes a circular protective cylinder, a malleable plate, and a support assembly. The circular protective cylinder is placed inside the pile hole, and the malleable plate is bent into a cylindrical shape and placed inside the circular protective cylinder. The support assembly is placed between the circular protective cylinder and the malleable plate, and the malleable plate is used to fill concrete to form the pile head. The pile head forming device of this utility model does not produce irregular protrusions when forming the pile head, does not require decoration or grinding of the pile head surface, and does not cause damage to the pile head, thereby ensuring the appearance quality of the pile head.
[0046] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 4As shown, the support assembly 4 includes multiple mounting plates 41 and multiple end-sealing plates 42. The mounting plates 41 are located at the top of the hollow portion between the circular protective casing 2 and the malleable plate 3, and the end-sealing plates 42 are located at the bottom of the hollow portion between the circular protective casing 2 and the malleable plate 3 to seal the bottom of the hollow portion. The mounting plates 41 are located at the top of the hollow portion and on the ground, which can fix the circular protective casing 2 and the malleable plate 3 on the ground plane and prevent the circular protective casing 2 and the malleable plate 3 from sinking to the bottom of the pile hole 1. The end-sealing plates 42 seal the bottom of the hollow portion to prevent the filler in the hollow portion from entering the pile hole 1.
[0047] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 3 As shown, the support assembly 4 also includes a plurality of support pads 43, which are horizontally spaced from top to bottom between the plurality of mounting plates 41 and the plurality of end caps 42. The plurality of support pads 43 form a pressure-resistant structure in the hollow portion between the plurality of mounting plates 41 and the plurality of end caps 42, which can fix the malleable plate 3, so that the shape of the malleable plate 3 remains cylindrical and does not deform. At the same time, it can also support the malleable plate 3 so that the hollow portion between the circular protective cylinder 2 and the malleable plate 3 forms a sandwich.
[0048] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 3 As shown, the support component 4 also includes a filler 44, which is filled in the middle of the hollow part between the circular casing 2 and the plastic plate 3. The filler 44 is made of conventional sand, which has fluidity and can automatically flow into the hollow part between the circular casing 2 and the plastic plate 3 and fill the hollow part without gaps. At the same time, the sand has a certain compressive strength, so that after the concrete is poured into the plastic plate 3, it can meet the concrete pressure of the exposed pile head without deformation.
[0049] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 2 As shown, the pile head forming device further includes a support frame 5 and multiple guide pipes 6. The support frame 5 is located at the top of the pile hole 1, and the multiple guide pipes 6 are located on the support frame 5 for pouring concrete into the plastic plate 3. The support frame 5 is located at the top of the pile hole 1 and fixed to the ground, which can protect the hole of the pile hole 1 and prevent it from collapsing. At the same time, it can also install and fix the multiple guide pipes 6.
[0050] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 2As shown, the pile head forming device further includes a reinforcing cage 7, which is located inside the plastic plate 3. The reinforcing cage 7 is used to resist tensile force. Concrete has high compressive strength but very low tensile strength. The reinforcing cage 7 can restrain the concrete of the pile head, enabling it to withstand a certain axial tensile force.
[0051] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 2 As shown, the support frame 5 is a square frame used to fix the steel cage 7. The support frame 5 is set on the ground to support the steel cage 7 and fix it on the ground plane, preventing the steel cage 7 from sinking to the bottom of the pile hole 1. The support frame 5 is set as a square frame, which makes its structure more stable and its support force stronger.
[0052] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 2 As shown, there are four conduits 6, which are fixed at the four corners of the support frame 5. The outlets of the four conduits 6 extend into the pile hole 1 and are located above the bottom of the pile hole 1. The four conduits 6 are used to pour concrete into the plastic slab 3. The four conduits 6 increase the pouring speed of concrete and thus improve construction efficiency. In addition, there is a gap between the outlet of the four conduits 6 and the bottom of the pile hole 1, which facilitates the concrete to enter the pile hole 1 without backflow into the conduits 6.
[0053] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 As shown, the four guide pipes 6 are detachably connected to the support frame 5. The height of the four guide pipes 6 changes with the height of the concrete. When the concrete poured into the pile foundation hole 1 reaches the height of the guide pipes 6, a part of the guide pipes 6 needs to be removed to ensure that the guide pipes 6 are always above the poured concrete, so that the concrete pouring can continue until the concrete is poured to the designed height of the pile foundation. The four guide pipes 6 adopt a detachable connection method, which is simple to assemble and disassemble and highly efficient.
[0054] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 As shown, the circular protective sleeve 2 is made of steel, and the malleable plate 3 is made of iron with a smooth surface. The steel material is uniform, has high strength, simple structure, short construction period, and good assemblability. The iron material is weldable, has good heat resistance and toughness, does not leak, can form a sealed structure, and has good ductility.
[0055] This utility model discloses a pile head forming device for pile foundations. Its working principle is as follows: Before construction, the pile foundation location is cleared and leveled, the actual geological conditions are investigated, and the type of soil to be replaced with well-compacted soil is selected based on its properties. Then, a circular casing 2 is installed, and its elevation and offset are adjusted. The pile head is drilled according to the pile forming process to form the pile hole 1. The malleable plate 3 is placed inside the circular casing 2, forming a hollow section between the circular casing 2 and the malleable plate 3, and the support assembly 4 is installed. Then, multiple mortise plates 41 are installed at the top of the hollow section between the circular casing 2 and the malleable plate 3, and multiple end plates 42 are installed at the bottom of the hollow section. Multiple support pads 43 are installed between the multiple mortise plates 41 and the multiple end plates 42. Finally, sand is filled between the circular casing 2 and the malleable plate 3. The hollow section of the core is designed to form a compressive-resistant structure, ensuring that the concrete poured into the malleable plate 3 can withstand the concrete pressure of the exposed pile head without deformation. Simultaneously, a square support frame 5 is installed on the top of the pile hole 1, i.e., on the ground. The reinforcing cage 7 is installed inside the malleable plate 3. Four guide pipes 6 are installed at the four corners of the support frame 5 to pour concrete into the malleable plate 3. Then, the circular casing 2 is slowly and vertically removed. After the concrete at the pile head has solidified and its strength meets the design drawings and specifications, the original soil is excavated, and the malleable plate 3, slab 41, end cap 42, support pad 43, and filler 44 are removed. This allows the pile head to be formed in one step, preventing irregular protrusions during pile head formation. It eliminates the need for surface finishing and grinding of the pile head, and avoids damage to the pile head, thus ensuring the appearance quality of the pile head.
[0056] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0057] It should be noted that in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0058] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features of the present invention.
Claims
1. A pile head forming device for pile foundations, characterized in that, include: A circular casing (2) is provided inside the pile foundation hole (1); A malleable plate (3), which is bent into a cylindrical shape and disposed inside the circular protective tube (2); Support assembly (4), the support assembly (4) being disposed between the circular protective cylinder (2) and the malleable plate (3); and The plastic slab (3) is used to fill concrete to form the pile head of the pile foundation.
2. The pile head forming device according to claim 1, characterized in that, The support component (4) includes: Multiple mounting plates (41) are provided at the top of the hollow portion between the circular protective tube (2) and the malleable plate (3); Multiple end-sealing plates (42) are disposed at the bottom of the hollow portion between the circular protective tube (2) and the malleable plate (3) to seal the bottom of the hollow portion.
3. The pile head forming device according to claim 2, characterized in that, The support component (4) also includes: Multiple support pads (43) are horizontally spaced from top to bottom between multiple end plates (41) and multiple end plates (42).
4. The pile head forming device according to claim 3, characterized in that, The support component (4) also includes: The filler (44) is filled in the middle of the hollow part between the circular casing (2) and the plastic plate (3).
5. The pile head forming device according to claim 1, characterized in that, Also includes: A support frame (5) is provided at the top of the pile foundation hole (1); Multiple conduits (6) are provided on the support frame (5) for pouring concrete into the plastic slab (3).
6. The pile head forming device according to claim 5, characterized in that, Also includes: A reinforcing cage (7) is disposed inside the plastic plate (3).
7. The pile head forming device according to claim 6, characterized in that: The support frame (5) is a square frame.
8. The pile head forming device according to claim 7, characterized in that: The plurality of the conduits (6) are four in number, and the four conduits (6) are fixed at the four apex corners of the support frame (5). The outlets of the four conduits (6) extend into the pile hole (1) and are located above the bottom of the pile hole (1).
9. The pile head forming device according to claim 8, characterized in that: The four conduits (6) are detachably connected to the support frame (5).
10. The pile head forming device according to claim 1, characterized in that: The circular protective sleeve (2) is made of steel, and the malleable plate (3) is made of iron.