Hollow pile plug
By designing a hollow pile plug including chassis and curled edges, the problem of mud, water and debris falling in the construction of hollow concrete piles is solved, and the effect of reducing the inner wall cleaning work and improving the bending bearing capacity is achieved.
Patent Information
- Application Number
- CN202421754579.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-23
AI Technical Summary
In the construction of hollow piles of reinforced concrete, the existing technology is difficult to effectively prevent debris such as mud and water from falling into the hollow pile holes, resulting in cumbersome inner wall cleaning before concrete core filling construction, affecting the quality of the project.
A hollow pile plug is designed, including a chassis and a curling edge. A first anchor rib is provided in the area where the chassis is enclosed. A handle and reinforcement rib are fixedly connected on one side of the chassis to form a structure with strong bending load bearing capacity, and a rubber gasket is provided on the outer jacket to increase sealing.
The hollow pile plug and hollow pile holes are tightly embedded, effectively preventing mud and water from falling into it, reducing the cleaning of the inner wall, and can be used multiple times or used as a pallet for anchoring steel bars, and is suitable for various types of hollow pile sinking pile construction.
Smart Images
Figure CN222923743U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of reinforced concrete, and particularly relates to a plug for a hollow pile. Background Art
[0002] Before the core filling construction of reinforced concrete hollow piles, it is necessary to clean the inner wall of the hollow pile hole. The cleaning degree of the inner wall of the reinforced concrete hollow pile hole directly affects the integrity of the core filling concrete and the pile body concrete of the pipe pile, and restricts the engineering quality of the foundation.
[0003] When constructing reinforced concrete hollow piles at the construction site, generally few measures are taken to prevent water and soil from entering the pile hole. Some experienced pile foundation construction units will cover the top of the last section of the pile with waste templates before officially driving the pile to reduce the soil from falling into the pile hole. However, there are still mud and other sundries falling into the pile hole before the foundation construction, and covering the waste templates will affect the driving efficiency. The existing pile plugs or structural forms are relatively complex, or the upper cover type affects the control of the pile top elevation, or the embedded type affects the pile body structure, or their uses are relatively single. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a plug for a hollow pile, which can avoid mud and other sundries from falling into the exposed pile hole after pile driving, reduce the cleaning work of the inner wall of the hollow pile hole before the core filling construction of the hollow pile, and can be used as a supporting plate for the anchor reinforcement of the pile core.
[0005] To achieve the above purpose, the technical solution adopted by the utility model is to provide a plug for a hollow pile, which includes a chassis and a curled edge. The chassis is circular, the curled edge is annular, and the curled edge is fixedly connected around the perimeter of the chassis; the area enclosed by the chassis and the curled edge is used to arrange the first anchor reinforcement. One side of the chassis is fixedly connected with a handle, and the handle is fixed on the chassis and on the same side as the first anchor reinforcement; the other side of the chassis is fixedly connected with a reinforcing rib, and the reinforcing rib is the first reinforcing rib and the second reinforcing rib that are cross-welded.
[0006] Further, the chassis is a circular thin steel plate, the curled edge is an annular thin steel plate, and a rubber gasket is sleeved outside the curled edge.
[0007] Further, the handle is a steel handle, and both ends of the steel handle are fixed on the chassis through semi-circular fixing steel plates and are rotatably connected to the chassis.
[0008] Further, the chassis together with the curled edge is embedded in the hollow pipe pile, and the hollow pipe pile is connected to the end plate of the precast pipe pile.
[0009] Further, the first anchor reinforcements are equally spaced along the circumference of the chassis, and circular stirrups are welded or tied outside multiple first anchor reinforcements.
[0010] Furthermore, a connecting steel plate is fixedly connected to the end plate of the precast pipe pile, and a second anchoring bar is welded to the connecting steel plate.
[0011] Furthermore, a second anchoring bar is welded to the first anchoring bar.
[0012] Furthermore, the inner diameter of the pipe pile of the hollow pipe pile is Ф160 - Ф900mm, the number of the first anchoring bars is four, and the inner diameter of the square pile formed by the four first anchoring bars is Ф160 - Ф440mm.
[0013] Furthermore, the number of the circular stirrups is multiple, and the multiple circular stirrups are equally spaced along the extending direction of the first anchoring bar.
[0014] Furthermore, one end of the first anchoring bar is welded to the chassis, and the other end of the first anchoring bar is bent outwards to form a fixed installation part.
[0015] The utility model has the following beneficial effects compared with the prior art: The hollow pile plug provided by the utility model is tightly embedded with the hollow pile hole, can effectively prevent sundries such as mud and water from falling into the hollow pile hole and polluting the inner wall of the hollow pile hole, and has strong bending bearing capacity; it can be recycled multiple times and can also be used as a supporting plate for the pile core anchoring steel bars; it has a wide range of application scenarios and can be used for the pile sinking construction of all types of hollow piles, including but not limited to reinforced concrete hollow pipe piles, reinforced concrete precast hollow square piles, steel pipe piles, etc. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural diagram of the hollow pile plug in the embodiment of the utility model;
[0017] Figure 2 is a bottom view schematic diagram of the hollow pile plug in the embodiment of the utility model;
[0018] Figure 3 is a schematic structural diagram of the hollow pile plug and the precast pipe pile in the embodiment of the utility model;
[0019] Figure 4 is a schematic structural diagram of the steel reinforcement cage A in another embodiment of the utility model;
[0020] Figure 5 is a schematic structural diagram of the steel reinforcement cage A and the precast pipe pile in another embodiment of the utility model;
[0021] Figure 6 is a schematic structural diagram of the steel reinforcement cage B in another embodiment of the utility model;
[0022] Figure 7 is a schematic structural diagram of the steel reinforcement cage B and the precast pipe pile in another embodiment of the utility model.
[0023] The reference numerals in the drawings are:
[0024] 1 - Prefabricated pipe pile end plate; 11 - Connecting steel plate; 12 - Second anchor bar; 2 - Hollow pile plug; 211 - Chassis;
[0025] 212 - Crimping edge; 213 - Rubber gasket; 214 - First reinforcing rib; 215 - Second reinforcing rib; 216 - Handle; 217 - Fixed ring; 3 - Prefabricated pipe pile; 4 - Inner wall of prefabricated pipe pile; 5 - First anchor bar; 6 - Circular stirrup. Specific embodiments
[0026] The present utility model will be further described below in conjunction with the drawings and embodiments.
[0027] Please refer to Figure 1 , the hollow pile plug 2 provided in this embodiment includes a chassis 211 and a crimping edge 212. The chassis 211 is a circular thin steel plate, and the crimping edge 212 is an annular thin steel plate. The crimping edge 212 is fixedly connected around the perimeter of the chassis 211. A rubber gasket 213 is sleeved outside the crimping edge 212. A handle 216 is arranged in the enclosed area of the chassis 211 and the crimping edge 212. The handle 216 is a steel handle. Both ends of the handle 216 are fixed on the chassis 211 through fixed rings 217 and are rotatably connected to the chassis 211. The fixed ring 217 is a semi-circular fixed steel plate. On the other side of the chassis 211, a first reinforcing rib 214 and a second reinforcing rib 215 are fixedly connected. The first reinforcing rib 214 and the second reinforcing rib are cross-welded on the chassis 211. The first reinforcing rib 214 and the second reinforcing rib 215 can enhance the flexural bearing capacity of the hollow pile plug 2, prevent the overall depression caused by excessive loads such as upper soil, and at the same time have a guiding and stabilizing effect to prevent the overall overturning caused by uneven loads such as upper soil.
[0028] Further refer to Figure 3 , the hollow pile plug 2 provided in this embodiment is embedded in a reinforced concrete hollow prefabricated pipe pile 3, and the prefabricated pipe pile end plate 1 of the prefabricated pipe pile 3 is connected by means specified in existing codes such as prestressing tendons.
[0029] Further refer to Figure 4 , in the second embodiment of the present utility model, first anchor bars 5 are welded on the hollow pile plug 2 at equal intervals along the circumference of the chassis 211. A circular stirrup 6 is sleeved outside multiple first anchor bars 5, and the fixing method can be connected by means specified in existing codes such as welding and binding. One end of the first anchor bar 5 is welded and fixed to the chassis 211, and the other end is bent outward to form a fixed installation part. The hollow pile plug 2, the first anchor bars 5 and the steel bar cage A of the circular stirrup 6 are applicable to reinforced concrete hollow pipe piles without cutting the pile or with relatively small uplift force at the upper part.
[0030] Further refer to Figure 5, the connecting steel plate 11 is welded to the end plate 1 of the precast pipe pile, and the second anchor bar 12 is connected to the connecting steel plate 11 by welding. The steel cage A is placed inside the reinforced concrete hollow precast pipe pile 3, which is applicable to the reinforced concrete hollow pipe pile in the case of no pile cutting or small uplift force at the upper part of the pile.
[0031] For further reference Figure 6 , the third embodiment of the present invention provides a steel cage B. The first anchor bars 5 are welded to the hollow pile plug 2 at equal intervals along the circumference of the chassis 211. A plurality of circular stirrups 6 are sleeved outside the plurality of first anchor bars 5 and are equally spaced along the extending direction of the first anchor bars. The first anchor bars 5 and the circular stirrups 6 are connected by welding, tying and other methods specified in the existing specifications. The top of the first anchor bar 5 is welded with the second anchor bar 12. The steel cage B is applicable to the case of pile cutting or large uplift force at the upper part of the pile.
[0032] For further reference Figure 7 , the steel cage B is placed in the reinforced concrete hollow precast pipe pile 3, which is applicable to the reinforced concrete hollow pipe pile in the case of pile cutting or large uplift force at the upper part of the pile.
[0033] Taking the reinforced concrete hollow pipe pile as an example, the usage of the hollow pile plug provided by the present invention is introduced. Before the construction of the pile foundation project, according to the inner diameter of the reinforced concrete hollow pile in the project (the inner diameter of the pipe pile is Ф160 - Ф900mm, and the inner diameter of the square pile is Ф160 - Ф440mm), the hollow pile plugs of different diameters are selected. Before the sinking of a single reinforced concrete hollow pipe pile, the pile tip is connected to the first section of the reinforced concrete hollow pipe pile, and then the sinking construction is carried out. When the pile top elevation of the first section of the reinforced concrete hollow pipe pile is 0.5m above the ground, the connection of the second section of the reinforced concrete hollow pipe pile is carried out, and so on. Before the hoisting of the last section of the reinforced concrete hollow pipe pile, the present hollow pile plug is embedded in the last section of the reinforced concrete hollow pipe pile. After the pile connection is completed, it is sent to the designed pile top elevation together with the reinforced concrete hollow pipe pile. Since the hollow pile plug has tightly blocked the pile hole of the reinforced concrete hollow pipe pile, it can prevent mud and other sundries from falling into the pile hole of the reinforced concrete hollow pipe pile.
[0034] During the construction of the foundation such as the bearing platform, first dig the soil near the reinforced concrete hollow pipe pile to the bottom elevation of the foundation cushion. After the cushion is poured, then pull out the present hollow pile plug, and simply clean the inner wall of the pile hole of the reinforced concrete hollow pipe pile and the hollow pile plug, which can avoid or reduce the cleaning work of the inner wall of the hollow pile hole. Select the steel cage A of the reinforced concrete hollow pipe pile or the steel cage B of the reinforced concrete hollow pipe pile according to whether the pile is cut and the magnitude of the uplift force at the upper part of the pile, and finally pour the slightly expanded concrete.
[0035] In summary, the hollow pile plug in the embodiments of the present invention has the following advantages:
[0036] 1. The pile plug of the utility model for hollow piles can be used in the pile driving construction of all types of hollow piles, including but not limited to reinforced concrete hollow pipe piles, precast reinforced concrete hollow square piles, steel pipe piles, etc.
[0037] 2. The pile plug of the utility model for hollow piles can select a pile plug with a corresponding size according to the size of the hollow pile. The structural form is relatively simple, and the embedded use does not affect the pile body structure and pile driving construction.
[0038] 3. The pile plug of the utility model for hollow piles has strong flexural bearing capacity, which can prevent the overall depression of the pile plug caused by excessive loads such as upper soil. On the other hand, it has guiding stability to prevent the overall overturning of the pile plug caused by uneven loads such as upper soil.
[0039] 4. The pile plug of the utility model for hollow piles is tightly plugged with the pile hole of the hollow pile, which can effectively prevent sundries such as mud and water from falling into the pile hole of the hollow pile and polluting the inner wall of the pile hole.
[0040] 5. The pile plug of the utility model for hollow piles can be recycled multiple times and can also be used as a supporting plate for the pile core anchoring steel bars.
[0041] 6. The pile plug of the utility model for hollow piles was first applied to the PHC pipe pile construction of Building No. in the resettlement housing project of Plot 16-05 in the Southeast Community of Huinan Town, Pudong New Area. After comprehensive statistics by the budgeter and constructor, it was found that the use of this pile plug for hollow piles could save 10,000 yuan in labor costs and reduce the construction period by 10 days.
[0042] Although the present utility model has been disclosed above with preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to that defined by the claims.
Claims
1. A hollow pile plug, characterized in that: It includes a chassis and a rolled edge, the chassis is circular, the rolled edge is ring-shaped, and the rolled edge is fixedly connected around the chassis; the area enclosed by the chassis and the rolled edge is used to set the first anchor rib, one side of the chassis is fixedly connected to a handle, the handle is fixed on the chassis and is located on the same side as the first anchor rib; the other side of the chassis is fixedly connected to a reinforcing rib, and the reinforcing rib is a first reinforcing rib and a second reinforcing rib that are cross-welded.
2. The hollow pile plug according to claim 1, characterized in that: The chassis is a circular thin steel plate, the curling edge is an annular thin steel plate, and a rubber gasket is disposed on the outer cover of the curling edge.
3. The hollow pile plug according to claim 1, characterized in that: The handle is a steel handle, and both ends of the steel handle are fixed to the chassis through semi-annular fixed steel plates and are rotatably connected to the chassis.
4. The hollow pile plug according to any one of claims 1 to 3, characterized in that: The chassis together with the curled edge is embedded in the hollow pipe pile, and the hollow pipe pile is connected to the prefabricated pipe pile end plate.
5. The hollow pile plug according to claim 4, characterized in that: The first anchoring bars are distributed at equal intervals along the circumference of the chassis, and circular stirrups are welded or tied outside the plurality of first anchoring bars.
6. The hollow pile plug according to claim 5, characterized in that: A connecting steel plate is fixedly connected to the end plate of the prefabricated pipe pile, and a second anchoring rib is welded to the connecting steel plate.
7. The hollow pile plug according to claim 4, characterized in that: The second anchoring bar is welded to the first anchoring bar.
8. The hollow pile plug according to claim 4, characterized in that: The inner diameter of the hollow pipe pile is Ф160-Ф900mm, the number of the first anchoring bars is four, and the inner diameter of the square pile surrounded by the four first anchoring bars is Ф160-Ф440mm.
9. The hollow pile plug according to claim 5, characterized in that: There are multiple circular stirrups, which are evenly spaced along the extension direction of the first anchoring bar.
10. The hollow pile plug according to claim 4, characterized in that: One end of the first anchoring rib is welded to the chassis, and the other end of the first anchoring rib is bent outward to form a fixed installation portion.