PHC prefabricated pipe pile
By designing through holes on the pile heads of PHC prefabricated pipe piles and placing sealing parts, the problem of soil entering the pipe piles was solved, the cost of the soil removal process was reduced, and the compression resistance of the concrete was improved.
Patent Information
- Application Number
- CN202421173175.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-27
AI Technical Summary
During construction, the PHC prefabricated pipe piles have soil entered the pipe piles because the pile top is lower than the ground elevation, which requires a de-earth removal process, which consumes a lot of manpower and financial resources.
Design a PHC prefabricated pipe pile, including a pile body, a pile head and a plugging piece. A through hole is provided at the top of the pile head. The opening size of the through hole gradually becomes larger in the direction away from the chamber. A blocking member is placed in the through hole to close the pile head and prevent soil from entering.
It effectively reduces the amount of soil entering the pipe pile, saving manpower and financial resources in the soil removal process. At the same time, the design of the pile head enhances the compression resistance of the concrete.
Smart Images
Figure CN222375392U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of building construction engineering, and in particular, to PHC prefabricated pipe piles. Background Art
[0002] During the construction of the basement of a building, before the excavation of the earth, the pile top elevation is lower than the ground elevation. After the excavation of the foundation pit of the PHC pipe pile foundation is completed, a steel cage needs to be set in the pile core on the upper part of the pile body, and micro-expansive concrete needs to be poured.
[0003] During the construction of pipe piles, soil often enters the pipe piles because the pile top is lower than the ground elevation, which requires soil removal, which consumes a lot of manpower and financial resources. How to solve the above technical problems is what those skilled in the art need to consider. Utility Model Content
[0004] The present application provides a PHC prefabricated pipe pile to solve the problem of how to reduce the entry of soil into the pipe pile.
[0005] The embodiment of the present application provides a PHC prefabricated pipe pile, comprising a pile body, a pile head and a plugging member. The pile body is hollow and has a chamber. The pile head is arranged at the top of the pile body, the pile head is integrally connected with the pile body, the pile head is provided with a through hole, the through hole is connected with the chamber, and the opening size of the through hole gradually increases in the direction away from the chamber. The plugging member is arranged at the through hole, and the plugging member cooperates with the through hole to close the pile head.
[0006] Compared with the prior art, the PHC prefabricated pipe pile provided in this embodiment is provided with a pile head on the top of the pile body, and the size of the through hole opening in the pile head gradually increases in the direction away from the chamber, so that the plugging piece can be placed in the through hole and close the pile head, so that the plugging piece prevents soil from entering the pipe pile during the construction process, thereby achieving the effect of reducing the entry of soil into the pipe pile.
[0007] In a possible implementation, the through hole includes a first opening and a second opening that are connected, the first opening is used to connect to the outside, the second opening is connected to the chamber, and a cross-sectional size of the second opening is smaller than a cross-sectional size of the chamber.
[0008] In a possible implementation manner, the wall thickness of the pile head close to the second opening is greater than the wall thickness of the pile body, and the cross-section where the pile head is connected to the pile body is in a barb shape.
[0009] In a possible implementation manner, the wall thickness of the pile head close to the first opening is the same as the wall thickness of the pile body.
[0010] In a possible implementation manner, the blocking member includes a cover plate, a circumferential surface of the cover plate cooperates with the through hole, and the cover plate is used to cover the pile head.
[0011] In a possible implementation manner, a lifting ring is provided on a side of the cover plate away from the chamber, and the lifting ring is used to lift the cover plate to open the pile head.
[0012] In a possible implementation manner, the length of the pile head ranges from 300 mm to 500 mm.
[0013] In a possible implementation manner, the wall thickness of the pile body is t, and the wall thickness of the pile head ranges from t+40 mm to t+60 mm.
[0014] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:
[0015] 1. The PHC prefabricated pipe pile provided in this embodiment is provided with a pile head at the top of the pile body, and the size of the through hole opening in the pile head gradually increases in the direction away from the chamber, so that the plugging piece can be placed in the through hole and close the pile head, so that the plugging piece prevents soil from entering the pipe pile during the construction process, thereby achieving the effect of reducing the amount of soil entering the pipe pile;
[0016] 2. The wall thickness of the pile head near the second opening is greater than the wall thickness of the pile body, and the cross-section where the pile head is connected to the pile body is in the shape of a barb, so that after pouring concrete into the chamber and the through hole, the pile head has a downward pressing force on the concrete. With this arrangement, when the pressure in the stratum squeezes the concrete, the concrete squeezed out of the PHC prefabricated pipe pile can be reduced, so as to achieve the effect of improving the compressive performance of the concrete. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.
[0018] Figure 1 This is a schematic structural diagram of a PHC prefabricated pipe pile according to an embodiment of the present application;
[0019] Figure 2 for Figure 1 Schematic diagram of the structure in which the plugging piece of the PHC prefabricated pipe pile is separated from the pile head.
[0020] Description of main component symbols:
[0021] 1. PHC prefabricated pipe pile; 11. pile body; 111. chamber; 12. pile head; 121. through hole; 122. first opening; 123. second opening; 13. plugging member; 131. cover plate; 132. lifting ring; 2. ground. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.
[0023] Some embodiments of the present application are described in detail. In the absence of conflict, the following embodiments and features of the embodiments can be combined with each other.
[0024] Example
[0025] See also Figure 1 and Figure 2 As shown, this embodiment provides a PHC prefabricated pipe pile 1, including a pile body 11, a pile head 12 and a plugging member 13. The pile body 11 is hollow and has a chamber 111. The pile head 12 is arranged at the top of the pile body 11, and the pile head 12 is integrally connected with the pile body 11. The pile head 12 is provided with a through hole 121, and the through hole 121 is connected with the chamber 111, and the opening size of the through hole 121 gradually increases in the direction away from the chamber 111. The plugging member 13 is arranged in the through hole 121, and the plugging member 13 cooperates with the through hole 121 to close the pile head 12.
[0026] The PHC prefabricated pipe pile 1 provided in this embodiment is provided with a pile head 12 on the top of the pile body 11, and the opening size of the through hole 121 in the pile head 12 gradually increases in the direction away from the chamber 111, so that the plugging member 13 can be placed in the through hole 121 and close the pile head 12, so that the plugging member 13 prevents soil from entering the pipe pile during the construction process, thereby reducing the amount of soil entering the chamber 111.
[0027] In this embodiment, the PHC prefabricated pipe pile 1 is arranged under the ground 2 , the pile head 12 is located close to the ground 2 , and the pile body 11 is extended in a direction away from the ground 2 .
[0028] In a possible implementation, the through hole 121 includes a first opening 122 and a second opening 123 that are connected, the first opening 122 is used to connect to the outside, the second opening 123 is connected to the chamber 111 , and the cross-sectional size of the second opening 123 is smaller than the cross-sectional size of the chamber 111 .
[0029] In this embodiment, the diameter of the blocking member 13 is larger than the diameter of the second opening 123, and the diameter of the blocking member 13 is smaller than the diameter of the first opening 122, so that the circumferential surface of the blocking member 13 fits tightly with the hole wall of the through hole 121, so that the blocking member 13 is inserted into the pile head 12 to close the pile head 12, thereby reducing the entry of soil into the pile.
[0030] In a possible implementation manner, the wall thickness of the pile head 12 close to the second opening 123 is greater than the wall thickness of the pile body 11 , and the cross-section where the pile head 12 is connected to the pile body 11 is in a barb shape.
[0031] In this embodiment, the cross section of the pile head 12 connected to the pile body 11 is in the shape of a barb, so that after the concrete is poured into the chamber 111 and the through hole 121, the pile head 12 has a downward pressing force on the concrete. With this arrangement, when the pressure in the stratum squeezes the concrete, the concrete can be reduced from being squeezed out of the PHC prefabricated pipe pile 1, so as to improve the compressive performance of the concrete. At the same time, since the cross section of the pile head 12 connected to the pile body 11 is in the shape of a barb, which is used to press the concrete downward, even if the length of the concrete poured in the pile head 12 is reduced, the PHC prefabricated pipe pile 1 can still give full play to the compressive performance of the concrete, increase the pull-out resistance of the pipe pile, and achieve the effect of saving materials.
[0032] When the PHC prefabricated pipe pile 1 is pressed into the ground, a hammering construction process is usually adopted. By setting the wall thickness of the pile head 12 to be greater than the wall thickness of the pile body 11, the strength of the pile head 12 is increased, thereby reducing the occurrence of damage or cracks in the pile head 12 of the PHC prefabricated pipe pile 1 due to excessive hammering, thereby improving the quality of pile foundation construction.
[0033] In a possible implementation manner, the wall thickness of the pile head 12 close to the first opening 122 is the same as the wall thickness of the pile body 11 .
[0034] In this embodiment, the outer diameter of the pile head 12 is the same as the outer diameter of the pile body 11 , which is conducive to one-time molding of the PHC prefabricated pipe pile 1 and is convenient for production and processing.
[0035] In a possible implementation manner, the blocking member 13 includes a cover plate 131 , a circumferential surface of the cover plate 131 cooperates with the through hole 121 , and the cover plate 131 is used to cover the pile head 12 .
[0036] In this embodiment, when the PHC prefabricated pipe pile 1 is pressed into the ground, the cover plate 131 covers the pile head 12 to reduce the amount of soil entering the through hole 121 and the chamber 111 .
[0037] In a possible implementation manner, a lifting ring 132 is provided on a side of the cover plate 131 away from the chamber 111 , and the lifting ring 132 is used to lift the cover plate 131 to open the pile head 12 .
[0038] In this embodiment, the lifting ring 132 lifts the cover plate 131 , so that the cover plate 131 can be recycled to save costs.
[0039] In a possible implementation manner, the length of the pile head 12 ranges from 300 mm to 500 mm.
[0040] In a possible implementation manner, the wall thickness of the pile body 11 is t, and the wall thickness of the pile head 12 ranges from t+40 mm to t+60 mm.
[0041] The PHC prefabricated pipe pile 1 provided in this embodiment is provided with a pile head 12 on the top of the pile body 11, and the opening size of the through hole 121 in the pile head 12 gradually increases in the direction away from the chamber 111, so that the plugging member 13 can be placed in the through hole 121 and close the pile head 12, so that the plugging member 13 prevents the soil from entering the PHC prefabricated pipe pile 1 during the construction process. The wall thickness of the pile head 12 near the second opening 123 is greater than the wall thickness of the pile body 11, and the cross-section where the pile head 12 is connected to the pile body 11 is in a barb shape, so that after pouring concrete into the chamber 111 and the through hole 121, the pile head 12 has a downward pressing force on the concrete. With such a configuration, when the pressure in the stratum squeezes the concrete, the concrete can be reduced from being squeezed out of the PHC prefabricated pipe pile 1, so as to improve the compression resistance of the concrete. The PHC prefabricated pipe pile 1 provided by the present invention enhances the strength of the pile head 12 and reduces the damage of the PHC prefabricated pipe pile 1 during the hammering process; by providing a lifting ring 132 connected with the cover plate 131, it is convenient for the staff to remove the blocking member 13 later. The staff presses the blocking member 13 to make the blocking member 13 in close contact with the pile head 12, so that foreign objects cannot enter the through hole 121, and the staff is prevented from stepping into the through hole 121 and getting injured. The device is easy to install and remove, and the blocking member 13 can be reused repeatedly.
[0042] The above implementation modes are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the above preferred implementation modes, a person skilled in the art should understand that the technical solutions of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.
Claims
1. A PHC prefabricated pipe pile, characterized in that: include: A pile body, the hollow of which has a cavity; A pile head is arranged at the top of the pile body, the pile head is connected to the pile body as a whole, the pile head is provided with a through hole, the through hole is communicated with the cavity, and the opening size of the through hole gradually increases in a direction away from the cavity; A blocking piece is arranged in the through hole, and the blocking piece cooperates with the through hole to close the pile head.
2. The PHC prefabricated pipe pile according to claim 1, characterized in that: The through hole includes a first opening and a second opening that are connected, the first opening is used to connect to the outside, the second opening is connected to the chamber, and the cross-sectional size of the second opening is smaller than the cross-sectional size of the chamber.
3. The PHC prefabricated pipe pile according to claim 2, characterized in that: The wall thickness of the pile head near the second opening is greater than the wall thickness of the pile body, and the cross section where the pile head is connected to the pile body is in a barb shape.
4. The PHC prefabricated pipe pile according to claim 3, characterized in that: The wall thickness of the pile head close to the first opening is the same as the wall thickness of the pile body.
5. The PHC prefabricated pipe pile according to claim 1, characterized in that: The blocking member comprises a cover plate, the circumferential surface of the cover plate cooperates with the through hole, and the cover plate is used to cover the pile head.
6. The PHC prefabricated pipe pile according to claim 5, characterized in that: A lifting ring is provided on one side of the cover plate away from the chamber, and the lifting ring is used to lift the cover plate to open the pile head.
7. The PHC prefabricated pipe pile according to claim 1, characterized in that: The length of the pile head ranges from 300 mm to 500 mm.
8. The PHC prefabricated pipe pile according to claim 7, characterized in that: The wall thickness of the pile body is t, and the wall thickness of the pile head ranges from t+40mm to t+60mm.