High-bending-resistance composite reinforcement prestressed concrete pipe pile

Abstract

The utility model discloses a composite reinforcement prestressed concrete pipe pile with high bending resistance, which relates to the technical field of pipe piles, and comprises a first pipe body, a second pipe body, a reinforcing outer ring group and a fastening bolt, the reinforcing outer ring group is used for reinforcing the joint of the first pipe body and the second pipe body, and the fastening bolt is used for fastening the joint of the first pipe body and the second pipe body. The outer wall of the bottom end of the first pipe body is fixedly connected with a first outer ring, the outer wall of the top end of the second pipe body is fixedly connected with a second outer ring, and the top end of the second pipe body is fixedly connected with a pipe body outer ring. The fastening bolt, the first reinforcing semi-ring, the second reinforcing semi-ring, the metal inserting arc plate, the limiting ring strip, the first outer ring and the second outer ring are used in cooperation, the connecting position of the first pipe body and the second pipe body is reinforced, and the horizontal bearing capacity of the pipe bodies is improved; the possibility that the first pipe body and the second pipe body enter the ground and then the joint is damaged under the action of horizontal load to cause pile breakage is prevented or reduced, and the using effect of the first pipe body and the second pipe body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe piles, in particular to a high-bending-resistant composite reinforced prestressed concrete pipe pile. Background Art

[0002] Concrete pipe piles are mainly used for the foundation construction of high-rise buildings and railway bridge projects. One type of concrete pipe pile includes a steel pipe layer and a concrete layer located inside the steel pipe layer, and the middle of the concrete layer has a central hole that penetrates the upper and lower ends of the concrete layer. The concrete layer is formed by centrifugal method. Its disadvantage is that in a softer medium, especially in a medium with quicksand, the impact resistance of the concrete pipe pile is poor.

[0003] In the prior art, a Chinese patent with publication number CN214530618U is proposed to solve the above-mentioned technical problems. The technical solution disclosed in the patent document is as follows: a high bending resistance composite reinforced prestressed concrete pipe pile, belonging to the field of pipe pile technology, including a skeleton, a connecting net is fixedly connected to the surface of the skeleton, concrete is poured on the surface of the skeleton and the connecting net, a plug interface is opened on the surface of the concrete, and a fixing port is opened on the surface of the concrete. The skeleton and the connecting net form a whole, which is convenient for sharing external force and greatly increases the overall bending resistance. It is fixed by the skeleton and the fixing port, and the connection is more convenient and strong.

[0004] The disadvantages of the above-mentioned prior art are that: although the skeleton and the connection net can form a whole, which is convenient for sharing external forces and greatly increases the overall bending resistance, the joint type of most prestressed pipe piles adopts the end plate electric welding connection method. The welding time is long, and the welding quality mainly depends on the welding technology of the workers. The welding joint part often becomes the weak point of the prestressed pipe pile body. Sometimes the pile is sunk just after welding, and it is difficult to check the pipe pile after it is driven into the soil layer. Due to the changeable geological and stratigraphic conditions, when the joint enters the ground, it is very easy to be quenched or cracked when encountering water. If there is a slight bias, the joint is easily damaged, especially under the action of horizontal load. Utility Model Content

[0005] The utility model aims to provide a high bending resistance composite reinforced prestressed concrete pipe pile to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A high bending resistance composite reinforced prestressed concrete pipe pile comprises a first pipe body, a second pipe body, a reinforcing outer ring group and fastening bolts. The reinforcing outer ring group is used to reinforce the connection between the first pipe body and the second pipe body. The bottom outer wall of the first pipe body is fixedly connected to the first outer ring, and the top outer wall of the second pipe body is fixedly connected to the second outer ring.

[0008] The top end of the second tube body is fixedly connected with a tube body outer ring, the bottom end of the first tube body is fixedly connected with an insert bottom ring, and the outer wall of the insert bottom ring is provided with a bottom ring threaded hole for docking and installing the fastening bolts.

[0009] The reinforcing outer ring group includes a first reinforcing half ring and a second reinforcing half ring which are sleeved on the outer walls of the first tube body and the second tube body, one end of the second reinforcing half ring is fixedly connected to a metal plug-in arc plate, one end of the first reinforcing half ring is provided with an arc plate receiving groove for receiving the metal plug-in arc plate, the inner walls of the first reinforcing half ring, the second reinforcing half ring and the metal plug-in arc plate are all provided with reinforcing threaded grooves for docking and mounting with the fastening bolts, and the upper and lower inner arc sides of the second reinforcing half ring are fixedly connected to limiting ring strips.

[0010] A further improvement of the technical solution of the utility model is that the outer wall of the metal plug-in arc plate is plugged into the inner wall of the arc plate receiving groove.

[0011] A further improvement of the technical solution of the utility model is that: the inner wall of the outer ring of the tube body is provided with an inner ring of the tube body fixedly connected to the top of the second tube body, the outer wall of the plug-in bottom ring is plugged into the inner wall of the outer ring of the tube body, and the outer wall of the inner ring of the tube body is plugged into the inner wall of the plug-in bottom ring.

[0012] A further improvement of the technical solution of the utility model is that: the top end of the second tube body is fixedly connected to a limited plug-in column, the bottom surface of the plug-in bottom ring is provided with a plug-in column receiving hole for receiving the limited plug-in column, and the inner wall of the plug-in column receiving hole is plugged into the outer wall of the limited plug-in column.

[0013] A further improvement of the technical solution of the utility model is that the inner walls of the two groups of the limiting ring strips located on the inner arc surface of the second reinforcing semi-ring are movably connected to the outer walls of the first outer ring and the second outer ring respectively.

[0014] A further improvement of the technical solution of the utility model is that one end of the fastening bolt is threadedly penetrated through the reinforcing thread groove and the outer ring of the tube body to the inner wall of the bottom ring threaded hole in sequence.

[0015] A further improvement of the technical solution of the utility model is that: the number of the fastening bolts is multiple groups, and the multiple groups of fastening bolts are distributed in an annular array on the outer wall of the reinforcement outer ring group.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] 1. The utility model provides a high bending resistance composite reinforced prestressed concrete pipe pile, which uses a fastening bolt, a first reinforcement half ring, a second reinforcement half ring, a metal plug arc plate, a limit ring strip, a first outer ring and a second outer ring to strengthen the connection between the first pipe body and the second pipe body, improve the horizontal bearing capacity of the first pipe body and the second pipe body, prevent or reduce the possibility of broken piles caused by damage at the joint of the first pipe body and the second pipe body under the action of horizontal load after entering the ground, and improve the use effect of the first pipe body and the second pipe body.

[0018] 2. The utility model provides a high bending resistance composite reinforced prestressed concrete pipe pile, which utilizes the coordinated use of a pipe body outer ring, a pipe body inner ring, a limit plug-in column, a plug-in bottom ring and a plug-in column receiving hole to further improve the structural strength of the connection between the first pipe body and the second pipe body, disperse the load on the pipe body, avoid the connection of the pipe body from becoming a weak point, make the connection of the pipe body more firm, have high bearing capacity and high bending strength, and avoid the situation of broken piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the disassembled structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the second tube structure of the utility model;

[0022] Figure 4 This is a bottom view of the first tube body of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the reinforced outer ring group of the utility model.

[0024] In the figure: 1. first tube body; 2. second tube body; 3. reinforcement outer ring group; 4. fastening bolts; 5. first outer ring; 6. second outer ring; 7. outer ring of the tube body; 8. inner ring of the tube body; 9. limiting plug-in column; 10. plug-in bottom ring; 11. plug-in column receiving hole; 12. bottom ring threaded hole; 13. first reinforcement half ring; 14. second reinforcement half ring; 15. metal plug-in arc plate; 16. limiting ring strip; 17. arc plate receiving groove; 18. reinforcement threaded groove. DETAILED DESCRIPTION

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The present invention is further described in detail below in conjunction with the embodiments:

[0027] Example 1

[0028] like Figure 1-5 As shown, the utility model provides a high-bending-resistant composite reinforced prestressed concrete pipe pile, comprising a first pipe body 1, a second pipe body 2, a reinforcing outer ring group 3 and a fastening bolt 4, the reinforcing outer ring group 3 is used to reinforce the connection between the first pipe body 1 and the second pipe body 2, the bottom outer wall of the first pipe body 1 is fixedly connected to the first outer ring 5, and the top outer wall of the second pipe body 2 is fixedly connected to the second outer ring 6.

[0029] The top end of the second tube body 2 is fixedly connected with a tube body outer ring 7, and the bottom end of the first tube body 1 is fixedly connected with an insert bottom ring 10. The outer wall of the insert bottom ring 10 is provided with a bottom ring threaded hole 12 for docking and installing the fastening bolts 4.

[0030] The reinforcement outer ring group 3 includes a first reinforcement half ring 13 and a second reinforcement half ring 14 which are sleeved on the outer walls of the first tube body 1 and the second tube body 2. One end of the second reinforcement half ring 14 is fixedly connected to a metal plug-in arc plate 15. One end of the first reinforcement half ring 13 is provided with an arc plate receiving groove 17 for receiving the metal plug-in arc plate 15. The inner walls of the first reinforcement half ring 13, the second reinforcement half ring 14 and the metal plug-in arc plate 15 are all provided with reinforcement threaded grooves 18 for docking and installing with the fastening bolts 4. The upper and lower inner arc sides of the second reinforcement half ring 14 are fixedly connected to a limiting ring strip 16.

[0031] The outer wall of the metal plug-in arc plate 15 is plugged into the inner wall of the arc plate receiving groove 17 .

[0032] The inner wall of the outer tube body ring 7 is provided with an inner tube body ring 8 fixedly connected to the top of the second tube body 2 , the outer wall of the plug-in bottom ring 10 is plugged into the inner wall of the outer tube body ring 7 , and the outer wall of the inner tube body ring 8 is plugged into the inner wall of the plug-in bottom ring 10 .

[0033] The top end of the second tube body 2 is fixedly connected to a limited plug-in column 9, and a plug-in column receiving hole 11 for receiving the limited plug-in column 9 is opened on the bottom surface of the plug-in bottom ring 10, and the inner wall of the plug-in column receiving hole 11 is plugged with the outer wall of the limited plug-in column 9. The outer tube body ring 7, the inner tube body ring 8, the limited plug-in column 9, the plug-in bottom ring 10 and the plug-in column receiving hole 11 are used in coordination with the first tube body 1 and the second tube body 2, so as to further improve the structural strength of the connection between the first tube body 1 and the second tube body 2, disperse the load borne by the tube body, avoid the connection of the tube body from becoming a weak point, make the connection of the tube body more firm, have high bearing capacity and high bending strength, and avoid the situation of broken piles.

[0034] Example 2

[0035] like Figure 1-5 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the inner walls of the two groups of limiting ring strips 16 located on the inner arc surface of the second reinforcing semi-ring 14 are movably connected with the outer walls of the first outer ring 5 and the second outer ring 6 respectively. After the first reinforcing semi-ring 13 and the second reinforcing semi-ring 14 are connected, the fastening bolt 4 is installed to the inner wall of the reinforcing thread groove 18, and then penetrates the outer ring 7 of the tube body until its tail end is installed in the inner wall of the bottom ring thread hole 12, and at the same time, the top end of the fastening bolt 4 is also in contact with the outer wall of the reinforcing outer ring group 3. Then, the locking and docking work of the first tube body 1 and the second tube body 2 is completed, so that the connection on the first tube body 1 and the second tube body 2 is closed and protected, and the structural strength of the reinforced outer ring group 3 itself is used to strengthen the connection between the first tube body 1 and the second tube body 2, thereby improving the horizontal bearing capacity of the first tube body 1 and the second tube body 2, preventing or reducing the possibility of damage to the joint of the first tube body 1 and the second tube body 2 under the action of horizontal load after entering the underground, thereby improving the use effect of the first tube body 1 and the second tube body 2.

[0036] One end of the fastening bolt 4 is threadedly penetrated through the reinforcing thread groove 18 and the outer ring 7 of the tube body to the inner wall of the bottom ring thread hole 12 in sequence.

[0037] There are multiple groups of fastening bolts 4 , which are distributed in a circular array on the outer wall of the reinforced outer ring group 3 .

[0038] The working principle of the high bending-resistant composite reinforced prestressed concrete pipe pile is described in detail below.

[0039] like Figure 1-5As shown, when in use, when the staff needs to dock and install the first tube body 1 and the second tube body 2, the first tube body 1 is first lifted by equipment, and then the bottom of the first tube body 1 is docked with the top of the second tube body 2, and the limiting plug-in column 9 is first docked with the plug-in column receiving hole 11, and then the first tube body 1 is slowly lowered. At this time, the limiting plug-in column 9 is relatively gradually plugged into the inner wall of the plug-in column receiving hole 11. When the top of the limiting plug-in column 9 is docked and contacted with the top of the inner wall of the plug-in column receiving hole 11, the bottom surface of the plug-in bottom ring 10 is just in contact with the top of the second tube body 2, and the plug-in bottom ring 10 is also located at the inner wall of the outer ring 7 of the tube body and the outer wall of the outer ring 8 of the tube body at the same time.

[0040] Then, the first reinforcement half ring 13 and the second reinforcement half ring 14 are respectively sleeved on the connection between the first tube body 1 and the second tube body 2. The inner diameter of the first reinforcement half ring 13 and the second reinforcement half ring 14 after being combined is just adapted to the outer diameter of the first tube body 1 and the second tube body 2, and the outer diameters of the first tube body 1 and the second tube body 2 are the same.

[0041] At this time, the limiting ring strip 16 on the surface of the second reinforcement half ring 14 is located on the upper surface of the first outer ring 5, and the limiting ring strip 16 on the bottom surface of the second reinforcement half ring 14 is located on the bottom surface of the second outer ring 6, so as to limit and reinforce the first outer ring 5 and the second outer ring 6, and the metal plug-in arc plate 15 is plugged into the inner wall of the arc plate receiving groove 17, and the top of the metal plug-in arc plate 15 can be welded to the inner wall of the arc plate receiving groove 17, so that the contact position between the two forms a further sealing effect.

[0042] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A high bending resistance composite reinforced prestressed concrete pipe pile, comprising a first pipe body (1), a second pipe body (2), a reinforcement outer ring group (3) and fastening bolts (4), characterized in that: The reinforcing outer ring group (3) is used to reinforce the connection between the first tube body (1) and the second tube body (2); the bottom outer wall of the first tube body (1) is fixedly connected to a first outer ring (5), and the top outer wall of the second tube body (2) is fixedly connected to a second outer ring (6); The top end of the second tube body (2) is fixedly connected to a tube body outer ring (7), the bottom end of the first tube body (1) is fixedly connected to a plug-in bottom ring (10), and the outer wall of the plug-in bottom ring (10) is provided with a bottom ring threaded hole (12) for docking and installing the fastening bolt (4); The reinforcing outer ring group (3) comprises a first reinforcing half ring (13) and a second reinforcing half ring (14) which are sleeved on the outer walls of the first tube body (1) and the second tube body (2); one end of the second reinforcing half ring (14) is fixedly connected to a metal plug-in arc plate (15); one end of the first reinforcing half ring (13) is provided with an arc plate receiving groove (17) for receiving the metal plug-in arc plate (15); the inner walls of the first reinforcing half ring (13), the second reinforcing half ring (14) and the metal plug-in arc plate (15) are all provided with reinforcing threaded grooves (18) for docking with the fastening bolts (4); and the upper and lower inner arc sides of the second reinforcing half ring (14) are fixedly connected to limit ring strips (16).

2. The high bending resistance composite reinforced prestressed concrete pipe pile according to claim 1, characterized in that: The outer wall of the metal plug-in arc plate (15) is plugged into the inner wall of the arc plate receiving groove (17).

3. The high bending resistance composite reinforced prestressed concrete pipe pile according to claim 1, characterized in that: The inner wall of the outer tube body ring (7) is provided with an inner tube body ring (8) fixedly connected to the top end of the second tube body (2); the outer wall of the plug-in bottom ring (10) is plugged into the inner wall of the outer tube body ring (7); and the outer wall of the inner tube body ring (8) is plugged into the inner wall of the plug-in bottom ring (10).

4. The high bending resistance composite reinforced prestressed concrete pipe pile according to claim 1, characterized in that: The top end of the second tube body (2) is fixedly connected to a limit plug-in column (9), and the bottom surface of the plug-in bottom ring (10) is provided with a plug-in column receiving hole (11) for receiving the limit plug-in column (9), and the inner wall of the plug-in column receiving hole (11) is plugged into the outer wall of the limit plug-in column (9).

5. The high bending resistance composite reinforced prestressed concrete pipe pile according to claim 1, characterized in that: The inner walls of the two groups of limiting ring strips (16) located on the inner arc surface of the second reinforcing half ring (14) are movably connected to the outer walls of the first outer ring (5) and the second outer ring (6) respectively.

6. The high bending resistance composite reinforced prestressed concrete pipe pile according to claim 1, characterized in that: One end of the fastening bolt (4) is threadedly passed through the reinforcing thread groove (18) and the outer ring of the tube body (7) in sequence to the inner wall of the bottom ring thread hole (12).

7. The high bending resistance composite reinforced prestressed concrete pipe pile according to claim 1, characterized in that: The fastening bolts (4) are provided in a plurality of groups, and the plurality of groups of fastening bolts (4) are distributed in a circular array on the outer wall of the reinforcing outer ring group (3).

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