Prestressed pipe pile with enhanced bearing capacity

Abstract

The application relates to a prestressed pipe pile with reinforced bearing capacity and relates to the technical field of pipe piles. The prestressed pipe pile comprises a first pile body and a second pile body, the first pile body and the second pile body are coaxially arranged, and a connecting mechanism for connecting the first pile body and the second pile body is further arranged; the connecting mechanism comprises a first connecting plate, a second connecting plate and a connecting assembly; the first connecting plate is coaxially arranged on one end of the first pile body close to the second pile body, the second connecting plate is coaxially arranged on one end of the second pile body close to the first pile body, a first annular boss is arranged on the first connecting plate, and a first annular groove matched with the first annular boss is arranged on the second connecting plate; and the connecting assembly is used for fixing the first annular boss in the first annular groove. The prestressed pipe pile has the effects of improving the connecting quality of the pipe pile and accelerating the construction progress.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of pipe piles, in particular to a prestressed pipe pile with enhanced bearing capacity. BACKGROUND

[0002] Pipe piles are divided into post-tensioned prestressed pipe piles and pre-tensioned prestressed pipe piles, which are used to transfer the weight of the upper building to the lower soil layer with high bearing capacity to improve the stability of the building.

[0003] The pre-tensioned prestressed pipe pile is a hollow cylindrical slender concrete prefabricated component made of a pre-tensioned prestressed process and a centrifugal forming method, mainly composed of a cylindrical pile body, an end plate and a steel sleeve hoop.

[0004] In the related art, the length of the pipe pile is fixed, but when the pipe pile is pressed into the pile hole, the pipe pile is too short, so the pipe pile needs to be spliced to make up for the defect of insufficient length. The splicing method usually adopts welding method, that is, the end plate contact part of the two pipe piles is welded.

[0005] According to the related art in the above, the welding method is used for splicing, and because of the welding stress deformation in the welding process, the welding quality of the pipe pile is reduced, which easily leads to the fracture of the pipe pile welding position in the piling process, thereby affecting the construction progress. SUMMARY

[0006] In order to improve the connection quality of the pipe pile and speed up the construction progress, the application provides a prestressed pipe pile with enhanced bearing capacity.

[0007] The prestressed pipe pile with enhanced bearing capacity provided by the application adopts the following technical scheme:

[0008] A prestressed pipe pile with enhanced bearing capacity, comprising a first pile body and a second pile body, the first pile body and the second pile body are coaxially arranged, further comprising a connecting mechanism for connecting the first pile body and the second pile body;

[0009] The connecting mechanism comprises a first connecting plate, a second connecting plate and a connecting assembly;

[0010] The first connecting plate is coaxially arranged on the first pile body close to one end of the second pile body, the second connecting plate is coaxially arranged on the second pile body close to one end of the first pile body, the first connecting plate is provided with a first annular boss, and the second connecting plate is provided with a first annular groove matched with the first annular boss;

[0011] The connecting assembly is used for fixing the first annular boss in the first annular groove.

[0012] By adopting the above technical scheme, under the cooperation of the first annular boss and the first annular groove, the radial movement of the first pile body and the second pile body along the first pile body can be prevented, under the action of the connecting mechanism, the first connecting plate and the second connecting plate can be fixedly connected, thereby facilitating the fixed connection of the first pile body and the second pile body, compared with the welding method, the first connecting plate and the second connecting plate will not be deformed by welding stress, thereby improving the connection strength of the first pile body and the second pile body, enhancing the bearing capacity of the whole pipe pile, reducing the possibility of pipe pile fracture in the piling process, speeding up the construction progress and shortening the construction period; meanwhile, in the process of splicing, due to the cooperation of the first annular boss and the first annular groove, the coaxiality of the first pile body and the second pile body can be ensured, and the splicing quality is improved.

[0013] Optionally, the second connecting plate is provided with a second annular boss, and the first connecting plate is provided with a second annular groove matched with the second annular boss.

[0014] The connecting assembly is used for fixing the second annular boss in the second annular groove.

[0015] By adopting the above technical scheme, on the basis of the first annular boss and the first annular groove, the cooperation of the second annular boss and the second annular groove is increased, which can further prevent the radial movement of the first pile body and the second pile body along the first pile body, and further improve the structural strength of the first connecting plate and the second connecting plate.

[0016] Optionally, the connecting assembly comprises a first connecting piece and a second connecting piece.

[0017] The first connecting piece comprises a plurality of first connecting rods, the first connecting rods extend into the second connecting plate and are arranged through the first annular boss, the first connecting rods are threadedly connected with the second connecting plate, and the first connecting rods are arranged along the radial direction of the first pile body.

[0018] The second connecting piece is used for fixing the second annular boss in the second annular groove.

[0019] By adopting the above technical scheme, the first connecting rod is arranged through the first annular boss and is threadedly connected with the second connecting plate, thereby facilitating the fixed connection of the first connecting plate and the second connecting plate.

[0020] Optionally, the second connecting piece comprises a plurality of second connecting rods, the second connecting rods extend into the first connecting plate and are arranged through the second annular boss, the second connecting rods are threadedly connected with the first connecting plate, and the second connecting rods are arranged along the radial direction of the second pile body.

[0021] By adopting the technical scheme, the second connecting rod is penetrated through the second annular boss and is threadedly connected with the first connecting plate, so that the first connecting plate and the second connecting plate are fixedly connected.

[0022] Optionally, the first annular boss is provided with a plurality of first positioning rods away from one side of the first pile body, and the bottom of the first annular groove is provided with a first positioning hole for cooperation with the first positioning rod.

[0023] By adopting the technical scheme, the first positioning rod is inserted into the first positioning hole, the first connecting rod is inserted into the second connecting plate and penetrates through the first annular boss.

[0024] Optionally, the plurality of first positioning rods are uniformly distributed along the circumference of the first annular boss, and the plurality of first positioning holes are uniformly distributed along the circumference of the first annular groove.

[0025] By adopting the technical scheme, each first positioning rod is inserted into the corresponding first positioning hole, and the first connecting rod is used to fix the first connecting plate and the second connecting plate, so that the connection difficulty of the first connecting plate and the second connecting plate is reduced, and the pile connection efficiency is improved.

[0026] Optionally, the second annular boss is provided with a plurality of second positioning rods away from one side of the second pile body, and the bottom of the second annular groove is provided with a second positioning hole for cooperation with the second positioning rod.

[0027] By adopting the technical scheme, the second positioning rod is inserted into the second positioning hole, the second connecting rod is inserted into the first connecting plate and penetrates through the second annular boss.

[0028] Optionally, the plurality of second positioning rods are uniformly distributed along the circumference of the second annular boss, and the plurality of second positioning holes are uniformly distributed along the circumference of the second annular groove.

[0029] By adopting the technical scheme, each second positioning rod is inserted into the corresponding second positioning hole, and the second connecting rod is used to fix the first connecting plate and the second connecting plate, so that the connection difficulty of the first connecting plate and the second connecting plate is reduced, and the pile connection efficiency is further improved.

[0030] Optionally, the first pile body and the second pile body each include a steel reinforcement cage, concrete and a steel hoop.

[0031] The steel reinforcement cage is circular, the steel reinforcement cage is connected to the first connecting plate or the second connecting plate, the concrete covers the steel reinforcement cage, and the number of the steel hoops is four, and the four steel hoops are respectively sleeved on the end portions of the first pile body and the second pile body.

[0032] By adopting the technical scheme, the first pile body and the second pile body are composed of the steel reinforcement cage and the concrete, and the steel hoop is sleeved at the end part, so that the structural strength of the pipe pile is improved.

[0033] Optionally, the inner circumferential wall of the steel reinforcement cage is provided with a support, and the support is arranged in a planar triangular shape.

[0034] By adopting the technical scheme, the support in a planar triangular shape is arranged on the inner circumferential wall of the steel reinforcement cage, and the triangular shape has stability, so that the bearing capacity of the pipe pile is further improved.

[0035] In summary, the present application has at least one of the following beneficial technical effects:

[0036] 1. The designed prestressed pipe pile with enhanced bearing capacity can prevent the first pile body and the second pile body from moving along the radial direction of the first pile body under the cooperation of the first annular boss and the first annular groove, and can fixedly connect the first connecting plate and the second connecting plate under the action of the connecting mechanism, so as to facilitate the fixed connection of the first pile body and the second pile body. Compared with the welding method, the first connecting plate and the second connecting plate will not be deformed by welding stress, so as to improve the connection strength of the first pile body and the second pile body, enhance the bearing capacity of the entire pipe pile, reduce the possibility of pipe pile fracture in the piling process, speed up the construction progress, shorten the construction period, and improve the pile connection quality.

[0037] 2. The designed prestressed pipe pile with enhanced bearing capacity further prevents the first pile body and the second pile body from moving along the radial direction of the first pile body under the cooperation of the second annular boss and the second annular groove based on the first annular boss and the first annular groove, so as to further improve the structural strength of the first connecting plate and the second connecting plate. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is a structural schematic view of a prestressed pipe pile with enhanced bearing capacity according to an embodiment of the present application;

[0039] Figure 2 is a sectional view of a prestressed pipe pile with enhanced bearing capacity according to an embodiment of the present application;

[0040] Figure 3 is Figure 2 is an enlarged view of part A in FIG. 1;

[0041] Figure 4 is a sectional view of a prestressed pipe pile with enhanced bearing capacity according to an embodiment of the present application;

[0042] Fig. 1 is a first pile body; 11 is a steel cage; 12 is concrete; 13 is a steel hoop; 14 is a support; 2 is a second pile body; 3 is a connecting mechanism; 31 is a first connecting plate; 311 is a first annular boss; 312 is a first positioning rod; 313 is a second annular groove; 314 is a second positioning hole; 32 is a second connecting plate; 321 is a second annular boss; 322 is a second positioning rod; 323 is a first annular groove; 324 is a first positioning hole; 33 is a connecting assembly; 331 is a first connecting rod; 332 is a second connecting rod. DETAILED DESCRIPTION

[0043] The following will be described in detail with reference to the accompanying drawings. Figures 1-4 The application is further described in detail.

[0044] The application discloses a prestressed pipe pile with enhanced bearing capacity.

[0045] Referring to Figure 1 , a prestressed pipe pile with enhanced bearing capacity comprises a first pile body 1, a second pile body 2, and a connecting mechanism 3 for connecting the first pile body 1 and the second pile body 2, the first pile body 1 and the second pile body 2 are coaxially arranged, and the connecting mechanism 3 is arranged on the first pile body 1 and the second pile body 2. Under the action of the connecting mechanism 3, the first pile body 1 and the second pile body 2 can be fixedly connected, compared with the welding method, the occurrence of welding stress deformation is avoided, thereby improving the connection strength of the first pile body 1 and the second pile body 2, enhancing the bearing capacity of the entire pipe pile, reducing the possibility of pipe pile fracture in the piling process, accelerating the construction progress, and shortening the construction period.

[0046] Referring to Figure 1 , the first pile body 1 and the second pile body 2 each comprise a steel cage 11, concrete 12, and a steel hoop 13, the steel cage 11 is circular, the concrete 12 covers the steel cage 11, the number of the steel hoops 13 is four, the four steel hoops 13 are respectively sleeved on the end portions of the first pile body 1 and the second pile body 2, and the steel hoops 13 are bonded with the concrete 12; in order to improve the structural stability of the pipe pile, in the embodiment, a support 14 is arranged on the inner circumferential wall of the steel cage 11, the support 14 is arranged in a planar triangular shape, the number of the supports 14 is several, the several supports 14 are uniformly distributed along the axial direction of the steel cage 11, and the support 14 is welded with the steel cage 11.

[0047] Referring to Figure 2 , Figure 3 and Figure 4, the connecting mechanism 3 comprises a first connecting plate 31, a second connecting plate 32 and a connecting assembly 33, the reinforcing cage 11 is clamped on the first connecting plate 31 or the second connecting plate 32, the first connecting plate 31 is coaxially arranged on the first pile body 1 close to one end of the second pile body 2, the second connecting plate 32 is coaxially arranged on the second pile body 2 close to one end of the first pile body 1, the first connecting plate 31 and the second connecting plate 32 have the same shape and size, and the first connecting plate 31 and the second connecting plate 32 are both hollow; in order to improve the stability between the first connecting plate 31 and the second connecting plate 32, the first connecting plate 31 is integrally connected with a first annular boss 311 on the side close to the second connecting plate 32, the first annular boss 311 is coaxially arranged with the first connecting plate 31, and the second connecting plate 32 is provided with a first annular groove 323 matched with the first annular boss 311; the connecting assembly 33 is used for fixing the first annular boss 311 in the first annular groove 323.

[0048] With reference to Figure 4 , in order to further improve the stability between the first connecting plate 31 and the second connecting plate 32, the second connecting plate 32 is integrally connected with a second annular boss 321 on the side close to the first connecting plate 31, the second annular boss 321 is coaxially arranged with the second connecting plate 32, and the first connecting plate 31 is provided with a second annular groove 313 matched with the second annular boss, the diameter of the first annular boss 311 in the embodiment is greater than the diameter of the second annular boss 321, and the diameter of the first annular groove 323 is greater than the diameter of the second annular groove 313, and the connecting assembly 33 is used for fixing the second annular boss 321 in the second annular groove 313.

[0049] With reference to Figure 3 and Figure 4 , the connecting assembly 33 comprises a first connecting piece and a second connecting piece, the first connecting piece comprises a plurality of first connecting rods 331, the plurality of first connecting rods 331 are uniformly distributed along the circumference of the second connecting plate 32, the first connecting rod 331 extends into the second connecting plate 32 and penetrates through the first annular boss 311, the first connecting rod 331 is threadedly connected with the second connecting plate 32, and the first connecting rod 331 is arranged along the radial direction of the first pile body 1, so that the first connecting rod 331 can be smoothly inserted into the first annular boss 311, and the installation difficulty of the first connecting rod 331 is reduced; the second connecting piece is used for fixing the second annular boss 321 in the second annular groove 313.

[0050] With reference to Figure 3 and Figure 4The second connecting member comprises a plurality of second connecting rods 332, which are evenly distributed circumferentially along the first connecting plate 31, extend into the interior of the first connecting plate 31 and pass through the second annular boss 321, are threadedly connected with the first connecting plate 31, and are arranged radially along the second pile body 2, so that the second connecting rods 332 can be smoothly inserted into the second annular boss 321 and the installation difficulty of the second connecting rods 332 is reduced.

[0051] With reference to Figure 3 Further, after the first connecting rods 331 and the second connecting rods 332 are installed in place, the excess portions of the first connecting rods 331 and the second connecting rods 332 are cut off by a reinforcing bar cutter, so that the influence of the first connecting rods 331 and the second connecting rods 332 on the pile driving process is prevented.

[0052] With reference to Figure 3 and Figure 4 Further, in order to facilitate the installation of the first connecting rods 331 and the second connecting rods 332, the first annular boss 311 is integrally connected with a plurality of first positioning rods 312 away from the first side of the first pile body 1 in the embodiment, the plurality of first positioning rods 312 are evenly distributed circumferentially along the first annular boss 311, the bottom of the first annular groove 323 is provided with first positioning holes 324 for cooperation with the first positioning rods 312, the plurality of first positioning holes 324 are evenly distributed circumferentially along the first annular groove 323, and when the first positioning rods 312 are inserted into the first positioning holes 324, the first connecting rods 331 can be smoothly inserted into the interior of the second connecting plate 32 and the second connecting rods 332 can be smoothly inserted into the interior of the first connecting plate 31.

[0053] With reference to Figure 3 and Figure 4 Further, in order to further improve the connection strength of the first connecting plate 31 and the second connecting plate 32, the second annular boss 321 is integrally connected with a plurality of second positioning rods 322 away from the second side of the second pile body 2 in the embodiment, the plurality of second positioning rods 322 are evenly distributed circumferentially along the second annular boss 321, and the bottom of the second annular groove 313 is provided with second positioning holes 314 for cooperation with the second positioning rods 322, the plurality of second positioning holes 314 are evenly distributed circumferentially along the second annular groove 313.

[0054] The implementation principle of the prestressed pipe pile with enhanced bearing capacity provided by the embodiment of the application is as follows: when the piles are connected, first, the first pile body 1 and the second pile body 2 are coaxially placed, then the first positioning rods 312 on the first annular boss 311 are inserted into the first positioning holes 324 at the bottom of the first annular groove 323, so that the first annular boss 311 cooperates with the first annular groove 323, at the same time, the second positioning rods 322 on the second annular boss 321 are inserted into the second positioning holes 314 at the bottom of the second annular groove 313, so that the second annular boss 321 cooperates with the second annular groove 313, at this time, the first connecting plate 31 abuts against the second connecting plate 32, then the first connecting rods 331 are inserted into the inside of the second connecting plate 32, so that the first connecting rods 331 are threadedly connected with the second connecting plate 32 and penetrate through the first annular boss 311, then the second connecting rods 332 are inserted into the inside of the first connecting plate 31, so that the second connecting rods 332 are threadedly connected with the first connecting plate 31 and penetrate through the second annular boss 321, then the excess portions of the first connecting rods 331 and the second connecting rods 332 are cut off.

[0055] Under the cooperation of the first annular boss 311 and the first annular groove 323, the radial movement of the first pile body 1 and the second pile body 2 along the first pile body 1 can be prevented, under the cooperation of the second annular boss 321 and the second annular groove 313, the radial movement of the first pile body 1 and the second pile body 2 along the first pile body 1 can be further prevented, under the action of the first connecting rods 331 and the second connecting rods 332, the first connecting plate 31 and the second connecting plate 32 can be fixedly connected, thereby facilitating the fixed connection of the first pile body 1 and the second pile body 2, compared with the welding method, the first connecting plate 31 and the second connecting plate 32 will not be deformed by welding stress, thereby improving the connection strength of the first pile body 1 and the second pile body 2, enhancing the bearing capacity of the entire pipe pile, reducing the possibility of pipe pile fracture in the piling process, accelerating the construction progress and shortening the construction period; at the same time, during the pile connection process, due to the cooperation of the first annular boss 311 and the first annular groove 323, the coaxiality of the first pile body 1 and the second pile body 2 can be ensured, and the pile connection quality is improved.

[0056] The above are preferred embodiments of the application, which do not limit the protection scope of the application, therefore: any equivalent changes made on the structure, shape and principle of the application should be covered into the protection scope of the application.

Claims

1. A prestressed pipe pile with enhanced bearing capacity, comprising a first pile body (1) and a second pile body (2), the first pile body (1) and the second pile body (2) are coaxially arranged, characterized in that: Further comprising a connecting mechanism (3) for connecting the first pile body (1) and the second pile body (2); The connecting mechanism (3) comprises a first connecting plate (31), a second connecting plate (32) and a connecting assembly (33); The first connecting plate (31) is coaxially arranged at one end of the first pile body (1) close to the second pile body (2), the second connecting plate (32) is coaxially arranged at one end of the second pile body (2) close to the first pile body (1), the first connecting plate (31) is provided with a first annular boss (311), and the second connecting plate (32) is provided with a first annular groove (323) matched with the first annular boss (311); The connecting assembly (33) is used for fixing the first annular boss (311) in the first annular groove (323); The first annular boss (311) is provided with a plurality of first positioning rods (312) away from one side of the first pile body (1), and the groove bottom of the first annular groove (323) is provided with a first positioning hole (324) matched with the first positioning rod (312); The plurality of first positioning rods (312) are uniformly distributed along the circumference of the first annular boss (311), and the plurality of first positioning holes (324) are uniformly distributed along the circumference of the first annular groove (323); The second connecting plate (32) is provided with a second annular boss (321), and the first connecting plate (31) is provided with a second annular groove (313) matched with the second annular boss (321); The connecting assembly (33) is used for fixing the second annular boss (321) in the second annular groove (313); The second annular boss (321) is provided with a plurality of second positioning rods (322) away from one side of the second pile body (2), and the groove bottom of the second annular groove (313) is provided with a second positioning hole (314) matched with the second positioning rod (322); The plurality of second positioning rods (322) are uniformly distributed along the circumference of the second annular boss (321), and the plurality of second positioning holes (314) are uniformly distributed along the circumference of the second annular groove (313).

2. The prestressed pipe pile with enhanced bearing capacity according to claim 1, characterized in that: The connecting assembly (33) comprises a first connecting piece and a second connecting piece; The first connecting piece comprises a plurality of first connecting rods (331), the first connecting rods (331) extend into the second connecting plate (32) and are arranged through the first annular boss (311), the first connecting rods (331) are threadedly connected with the second connecting plate (32), and the first connecting rods (331) are arranged along the radial direction of the first pile body (1); The second connecting piece is used for fixing the second annular boss (321) in the second annular groove (313).

3. The load capacity enhanced prestressed pipe pile according to claim 2, characterized in that: The second connecting piece comprises a plurality of second connecting rods (332), the second connecting rods (332) extend into the first connecting plate (31) and are arranged through the second annular boss (321), the second connecting rods (332) are threadedly connected with the first connecting plate (31), and the second connecting rods (332) are arranged along the radial direction of the second pile body (2).

4. The load capacity enhanced prestressed pipe pile according to claim 1, characterized in that: The first pile body (1) and the second pile body (2) each comprise a steel reinforcement cage (11), concrete (12) and steel hoops (13); The steel reinforcement cage (11) is circular, the steel reinforcement cage (11) is connected to the first connecting plate (31) or the second connecting plate (32) at an end, the concrete (12) covers the steel reinforcement cage (11), and the four steel hoops (13) are respectively sleeved on the ends of the first pile body (1) and the second pile body (2).

5. The load capacity enhanced prestressed pipe pile according to claim 4, characterized in that: The inner circumferential wall of the steel reinforcement cage (11) is provided with a support (14), and the support (14) is arranged in a planar triangular shape.

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