Integrated high-strength composite pipe pile
Through the combined design of plum-shaped foundation piles and plug-in piles, combined with restricted components and concrete filling, the problem of easy cracking of pipe piles is solved, and the high strength and long life of composite pipe piles are achieved.
Patent Information
- Application Number
- CN202422492215.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-10-15
AI Technical Summary
Existing pipe piles are prone to cracking after long-term use, lack of tension resistance and short service life.
The plum-shaped foundation pile is set up, and the plug-in pile is fitted into the socket, and the freedom of the plug-in pile is limited by limiting the components, which enhances the contact area between the foundation pile and the soil layer, and interacts between the plug-in piles, and uses the concrete filling gap to increase friction and improve structural strength.
The tensile and lateral force resistance of composite pipe piles is improved, cracking deformation is reduced, and service life is extended.
Smart Images
Figure CN223240664U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipe piles, in particular to an integrated high-strength composite pipe pile. Background Art
[0002] A pipe pile is a prefabricated concrete or steel tubular component used as a foundation for buildings, bridges, and other projects. It is sunk into the soil through specific construction methods, such as hammering or static pressure, to provide support for the foundation.
[0003] A common structure involves sinking several pipe piles into the soil, with their tops connected to a foundation, which is stabilized by the pipe piles. However, existing pipe piles are spaced a certain distance apart, resulting in each pile independently bearing the tensile forces of the foundation. While the tensile strength is primarily determined by the friction between the pile and the soil, it is typically high. However, the lateral forces exerted on the piles depend on their structural strength. Due to their length, the piles are affected by the soil environment over time, leading to a gradual decline in the concrete properties (including strength and durability) of the piles. This can lead to cracking when subjected to lateral forces, reducing their tensile strength and shortening their service life. Utility Model Content
[0004] In order to extend the service life of pipe piles, the present application provides an integrated high-strength composite pipe pile.
[0005] This application provides integrated high-strength composite pipe piles using the following technical solutions:
[0006] An integrated high-strength composite pipe pile includes a base pile and a plug-in pile. The base pile is arranged in a plum blossom shape, and the base pile is provided with a plurality of petals. A socket is opened at the center of each petal. The plug-in pile is plugged into the socket. A limiting component for limiting the plug-in pile is provided on the base pile.
[0007] By adopting the above technical solution, during construction, construction workers insert the plug piles into the sockets and then use the limiting assembly to limit the freedom of the plug piles, thus achieving the construction of composite pipe piles. Construction workers arrange the foundation piles into a plum blossom shape, which increases the contact area between the foundation piles and the soil layer and improves the tensile strength of the foundation piles. Then, by inserting and fitting several plug piles into the interior of the foundation piles and using the limiting assembly to limit the plug piles, it is equivalent to combining the plug piles into a whole, allowing the plug piles to interact with each other. Compared with existing technologies, this improves the overall ability of the composite pipe piles to resist lateral forces and reduces the possibility of cracking and deformation of the composite pipe piles. At the same time, the plug piles are separated from the soil layer by the foundation piles, which reduces the impact on the plug piles in the soil layer and extends the service life of the composite pipe piles.
[0008] Optionally, a gap is left between the surface of the plug pile and the inner wall of the plug hole, and the gap is filled with concrete.
[0009] By adopting the above technical solution, construction workers use concrete to fill the gap, thereby further increasing the friction between the plug-in pile and the foundation pile, reducing the possibility of the plug-in pile moving in the socket, and further improving the structural strength of the composite pipe pile.
[0010] Optionally, the limiting component includes a stabilizing tube, which is arranged at the bottom end of the socket, an internal thread is provided on the inner wall of the stabilizing tube, and a connecting portion is provided at the bottom of the plug-in pile, and the connecting portion is threadedly matched with the stabilizing tube.
[0011] By adopting the above technical solution, when limiting the insertion of piles, the construction workers put the insertion piles into the insertion holes, and then rotate the insertion piles so that the connecting part cooperates with the thread of the stabilizing tube, thereby limiting the freedom of the insertion piles and cooperating with the gravity of the insertion pile body to prevent the insertion piles from loosening, thereby realizing the installation of the insertion piles.
[0012] Optionally, a plurality of connecting flanges are provided on the surface of the plug pile.
[0013] By adopting the above technical solution, the construction workers increased the contact area between the plug pile and the concrete by setting the flange, further reduced the possibility of the plug pile moving out of the foundation pile, and improved the structural strength of the composite pipe pile.
[0014] Optionally, a pouring channel and a pouring hole are provided on the plug pile, the pouring channel is parallel to the plug pile, a plurality of pouring holes are provided on the plug pile, the pouring holes connect the pouring channel and the inside of the plug hole, the pouring holes are arranged at an angle, and the reference direction is from top to bottom. The distance between the pouring holes and the surface of the plug pile gradually decreases, and a rotation groove is provided on the top of the plug pile, the rotation groove is a polygonal groove, and the pouring channel is connected to the rotation groove.
[0015] By adopting the above technical solution, if concrete is poured directly into the gap, the distance between the concrete and the stabilizing cylinder is large, which can easily cause a large amount of air to remain inside the concrete. After the concrete solidifies, a large cavity will exist inside, which will affect the structural strength of the concrete. Construction workers use the output end of the rotating equipment to cooperate with the rotating groove to drive the plug pile to rotate within the foundation pile, facilitating the installation of the plug pile. Concrete is then poured into the rotating groove. The concrete flows along the pouring channel and pouring hole into the plug hole until the gap is completely filled. Guided by the pouring channel and pouring hole, the concrete slowly contacts the stabilizing cylinder and slowly rises within the gap, thereby expelling the air in the gap. This minimizes the possibility of air remaining inside the concrete, ensures the density of the concrete, and improves the structural strength of the concrete.
[0016] Optionally, the limiting assembly includes a connecting tube, a rotating block, a lifting block and a plug-in block, the top of the plug-in pile is provided with a mounting groove, the connecting tube is installed in the mounting groove, the rotating block is threadedly engaged in the connecting tube, the lifting block is cylindrical, the lifting block is rotatably connected to the bottom end of the rotating block, the bottom end of the lifting block is frustum-shaped, and the diameter of the lifting block gradually decreases from top to bottom as the reference direction, the plug-in block is plugged into and engaged with several blocks at the bottom end of the connecting tube, and a resistance inclined surface is provided on the plug-in block, and the resistance inclined surface slides with the lifting block, the plug-in block passes through the connecting tube and the plug-in pile, and a locking groove is provided at the position of the base pile corresponding to the plug-in block. When the plug-in pile is locked, the plug-in block is plugged into and engaged with the locking groove.
[0017] By adopting the above technical solution, when limiting the plug-in piles, the construction workers use the rotating equipment to drive the rotating block to rotate, so that the rotating block descends, and drives the lifting block to descend. By applying pressure to the inclined surface, several plug-in blocks are driven to move at the same time, so that the plug-in blocks are inserted into the locking groove, thereby limiting the freedom of the plug-in piles and realizing the installation of the plug-in piles.
[0018] Optionally, a sliding bar is connected to the lifting block at a position corresponding to the interfering inclined surface. The sliding bar is a T-shaped bar. A sliding groove is formed on the interfering inclined surface, and the sliding bar is slidably fitted in the sliding groove.
[0019] By adopting the above technical solution, construction workers can realize the movement of the lifting block and the plug-in block simultaneously through the cooperation of the sliding bar and the sliding groove, thereby improving the stability of the movement of the plug-in block.
[0020] Optionally, a stabilizing portion is provided at the bottom end of the plug pile, and the diameter of the stabilizing portion is consistent with the diameter of the plug hole.
[0021] By adopting this technical solution, the stabilizing portion provides stable support for the inserted pile when it is inserted into the foundation pile, reducing the possibility of the pile deflecting within the insertion hole. After the concrete solidifies, the stabilizing portion contacts the concrete, also reducing the possibility of the inserted pile moving within the foundation pile.
[0022] In summary, this application includes at least one of the following beneficial technical effects:
[0023] 1. During construction, the construction workers insert the plug-in piles into the sockets, and then use the limiting components to limit the freedom of the plug-in piles, thus realizing the construction of the composite pipe piles. The construction workers set the foundation piles into a plum blossom shape, which increases the contact area between the foundation piles and the soil layer, and improves the tensile strength of the foundation piles. Then, several plug-in piles are inserted into the interior of the foundation piles, and the limiting components are used to limit the plug-in piles, which is equivalent to combining several plug-in piles into a whole, so that several plug-in piles can interact with each other. Compared with the existing technology, the overall ability of the composite pipe piles to resist lateral forces is improved, and the possibility of cracking and deformation of the composite pipe piles is reduced. At the same time, the plug-in piles are separated from the soil layer by the foundation piles, so that the plug-in piles are less affected in the soil layer, thereby extending the service life of the composite pipe piles.
[0024] 2. When limiting the plug-in piles, the construction workers use the rotating equipment to drive the rotating block to rotate, so that the rotating block drops, and drives the lifting block to drop. By applying pressure against the inclined surface, several plug-in blocks are driven to move at the same time, so that the plug-in blocks are inserted into the locking groove, thereby limiting the freedom of the plug-in piles and realizing the installation of the plug-in piles. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a schematic diagram of the overall structure of the composite pipe pile in Example 1 of the present application.
[0026] Figure 2 It is an exploded view used to illustrate the foundation pile and plug-in pile structure in Example 1 of the present application.
[0027] Figure 3 It is a cross-sectional view used to illustrate the plug-in pile structure in Example 1 of the present application.
[0028] Figure 4 It is a cross-sectional view used to illustrate the composite pipe pile structure in Example 1 of the present application.
[0029] Figure 5 It is a structural diagram of the composite pipe pile in Example 2 of the present application.
[0030] Figure 6 It is an exploded view used to reflect the structure of the restriction component in Example 2 of the present application.
[0031] Figure 7 yes Figure 6 Enlarged view of point A in the middle.
[0032] Figure 8 It is a cross-sectional view used to illustrate the composite pipe pile structure in Example 2 of the present application.
[0033] Figure 9 yes Figure 8 Enlarged view of point B in the middle.
[0034] Explanation of the accompanying reference numerals: 1. Foundation pile; 11. Petals; 2. Insert pile; 21. Connecting part; 22. Connecting flange; 23. Casting channel; 24. Casting hole; 25. Rotating groove; 26. Stabilizing part; 3. Limiting assembly; 31. Stabilizing cylinder; 32. Connecting cylinder; 33. Rotating block; 34. Lifting block; 341. Sliding bar; 35. Insert block; 351. Interference slope. DETAILED DESCRIPTION
[0035] The following is combined with Figures 1-9 This application is described in further detail.
[0036] Example 1 of the present application discloses an integrated high-strength composite pipe pile. Figure 1 and Figure 2 The integrated high-strength composite pipe pile includes a foundation pile 1 and a plug pile 2. The foundation pile 1 has a plum blossom-shaped cross section, with several petals 11, four of which are used in this embodiment. A plug hole is provided at the top of the foundation pile 1, corresponding to the center of the petals 11.
[0037] Reference Figure 2 and Figure 3 The plug pile 2 is placed in the socket, and the foundation pile 1 is provided with a limiting assembly 3. The limiting assembly 3 includes a stabilizing tube 31, which is fixedly connected to the bottom end of the socket and has an internal thread on the inner wall of the stabilizing tube 31. The bottom end of the plug pile 2 is integrally formed with a connecting portion 21, which is threadedly engaged with the stabilizing tube 31.
[0038] Reference Figure 3 and Figure 4 , a gap is left between the plug pile 2 and the inner wall of the socket, and a plurality of connecting flanges 22 are integrally formed on the surface of the plug pile 2. The connecting flanges 22 are used to increase the contact area between the plug pile 2 and the concrete. A pouring channel 23 is opened in the plug pile 2, and a plurality of pouring holes 24 are opened on the surface of the plug pile 2. The pouring holes 24 are set at an angle and connect the pouring channel 23 with the inside of the socket. From top to bottom is the reference direction, the distance between the pouring holes 24 and the surface of the plug pile 2 gradually decreases. A rotation groove 25 is opened at the top of the plug pile 2. The rotation groove 25 is a polygonal groove. In this embodiment, a quadrilateral is used as an example. The rotation groove 25 is connected to the pouring channel 23. The rotation groove 25 is used to facilitate construction personnel to use rotating equipment to rotate the plug pile 2. The pouring channel 23 and the pouring holes 24 are used to drain concrete.
[0039] The implementation principle of an integrated high-strength composite pipe pile in Example 1 of the present application is as follows: during construction, the construction personnel drive the foundation pile 1 into the soil layer, and then use a crane to place the plug-in pile 2 into the socket, and use a rotating device to rotate the plug-in pile 2 through the rotating groove 25 so that the connecting part 21 is threadedly engaged with the inside of the stabilizing tube 31, and then concrete is poured through the rotating groove 25. The concrete flows into the socket through the pouring channel 23 and the pouring hole 24. After the concrete solidifies, the construction of the composite pipe pile is completed.
[0040] The construction workers set the foundation pile 1 into a plum blossom shape, which increases the contact area between the foundation pile 1 and the soil layer and improves the tensile strength of the foundation pile 1. Then, a number of plug-in piles 2 are plugged into the inside of the foundation pile 1, and the plug-in piles 2 are restricted by the limiting component 3, which is equivalent to combining the several plug-in piles 2 into a whole, so that the several plug-in piles 2 can interact with each other. Compared with the existing technology, the overall ability of the composite pipe pile to resist lateral forces is improved, and the possibility of cracking and deformation of the composite pipe pile is reduced. At the same time, the plug-in piles 2 are separated from the soil layer by the foundation pile 1, so that the plug-in piles 2 are less affected in the soil layer, thereby extending the service life of the composite pipe piles.
[0041] Example 2: The difference between this example and Example 1 lies in the different structure of the limiting component 3 .
[0042] Reference Figure 5 、 Figure 6 and Figure 7 The limiting assembly 3 includes a connecting tube 32, a rotating block 33, a lifting block 34 and a plug-in block 35. A stabilizing portion 26 is integrally formed at the bottom end of the plug-in pile 2, and the surface of the stabilizing portion 26 is in contact with the inner wall of the socket. A mounting groove is provided at the top of the plug-in pile 2, and the connecting tube 32 is installed in the mounting groove. The rotating block 33 is threadedly fitted in the connecting tube 32, and the lifting block 34 is arranged in a cylindrical shape. The top end of the lifting block 34 is rotatably connected to the bottom end of the rotating block 33, and the bottom end of the lifting block 34 is arranged in a truncated cone shape. From top to bottom is the reference direction, and the diameter of the lifting block 34 gradually decreases.
[0043] Reference Figure 7 、 Figure 8 and Figure 9 The plug-in block 35 is inserted into and mated with several blocks at the bottom end of the connecting tube 32. In this embodiment, six blocks are used as an example. The plug-in block 35 passes through the plug-in pile 2 and is provided with an interfering inclined surface 351. A sliding bar 341 is fixedly connected to the lifting block 34 at the position corresponding to the interfering inclined surface 351. The sliding bar 341 is a T-shaped bar with a sliding groove formed on the interfering inclined surface 351, and the sliding bar 341 slidably fits within the sliding groove. A locking groove is formed at the position of the foundation pile 1 corresponding to the plug-in block 35.
[0044] When restricting the plug-in pile 2, the construction workers use a crane to place the plug-in pile 2 into the socket, and then use the equipment to rotate the rotating block 33 to make the rotating block 33 descend, driving the lifting block 34 to descend, and through the interference inclined surface 351, driving the six plug-in blocks 35 to move synchronously until the plug-in block 35 is inserted into the locking groove, and finally pouring concrete in the socket. After the concrete cools, the construction and installation of the plug-in pile 2 is completed.
[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. An integrated high-strength composite pipe pile, characterized by: The invention comprises a base pile (1) and a plug-in pile (2), wherein the base pile (1) is arranged in a plum blossom shape, a plurality of petals (11) of the base pile (1) are provided, a plug hole is provided at the center of each petal (11), the plug-in pile (2) is plugged into the plug hole, and a limiting component (3) for limiting the plug-in pile (2) is provided on the base pile (1).
2. The integrated high-strength composite pipe pile according to claim 1, characterized in that: A gap is left between the surface of the plug pile (2) and the inner wall of the plug hole, and the gap is filled with concrete.
3. The integrated high-strength composite pipe pile according to claim 2, characterized in that: The limiting assembly (3) includes a stabilizing cylinder (31), which is arranged at the bottom end of the insertion hole. An internal thread is provided on the inner wall of the stabilizing cylinder (31). A connecting portion (21) is provided at the bottom of the plug pile (2), and the connecting portion (21) is threadedly matched with the stabilizing cylinder (31).
4. The integrated high-strength composite pipe pile according to claim 3, characterized in that: The surface of the plug pile (2) is provided with a plurality of connecting flanges (22).
5. The integrated high-strength composite pipe pile according to claim 2, characterized in that: The plug pile (2) is provided with a pouring channel (23) and a pouring hole (24), the pouring channel (23) is parallel to the plug pile (2), a plurality of the pouring holes (24) are provided on the plug pile (2), the pouring holes (24) are connected to the pouring channel (23) and the interior of the plug hole, the pouring holes (24) are arranged obliquely, and the distance between the pouring holes (24) and the surface of the plug pile (2) gradually decreases from top to bottom as a reference direction, the top of the plug pile (2) is provided with a rotation groove (25), the rotation groove (25) is a polygonal groove, and the pouring channel (23) is connected to the rotation groove (25).
6. The integrated high-strength composite pipe pile according to claim 2, characterized in that: The limiting assembly (3) comprises a connecting tube (32), a rotating block (33), a lifting block (34) and a plug-in block (35); a mounting groove is provided at the top of the plug-in pile (2); the connecting tube (32) is mounted in the mounting groove; the rotating block (33) is threadedly engaged in the connecting tube (32); the lifting block (34) is cylindrical; the lifting block (34) is rotatably connected to the bottom end of the rotating block (33); the bottom end of the lifting block (34) is truncated; and the reference direction is from top to bottom. The diameter of (34) gradually decreases, and the plug-in block (35) is plugged into and matched with several blocks at the bottom end of the connecting tube (32). The plug-in block (35) is provided with a contact inclined surface (351), and the contact inclined surface (351) is slidably matched with the lifting block (34). The plug-in block (35) passes through the connecting tube (32) and the plug-in pile (2). The base pile (1) is provided with a locking groove at a position corresponding to the plug-in block (35). When the plug-in pile (2) is locked, the plug-in block (35) is plugged into and matched with the locking groove.
7. The integrated high-strength composite pipe pile according to claim 6, characterized in that: A sliding bar (341) is connected to the lifting block (34) at a position corresponding to the abutting inclined surface (351). The sliding bar (341) is a T-shaped bar. A sliding groove is provided on the abutting inclined surface (351). The sliding bar (341) is slidably fitted in the sliding groove.
8. The integrated high-strength composite pipe pile according to claim 6, characterized in that: The bottom end of the plug pile (2) is provided with a stabilizing portion (26), and the diameter of the stabilizing portion (26) is consistent with the diameter of the plug hole.