Concrete reinforced tubular pile

Abstract

The utility model discloses a concrete reinforced pipe pile, including reinforcement cage, upper end plate, lower end plate and concrete layer, reinforcement cage includes a plurality of main reinforcement, main reinforcement circumference whole line arrangement encloses the cylindrical reinforcement frame, the cylindrical reinforcement frame is wound with spiral reinforcement, upper end plate and lower end plate are respectively provided with a plurality of through-hole, and the through-hole is equipped with a plurality of through-holes. One end of each main reinforcement penetrates through the through hole and is welded to the upper end plate or the lower end plate, the main reinforcement penetrates through the through hole and then is provided with a threaded connection section, the reinforcement cage is wrapped by the concrete layer, outer spiral guide ribs are distributed on the circumferential face of the concrete layer, and the outer spiral guide ribs and the concrete layer are integrally formed through concrete. According to the concrete reinforced tubular pile, the outer spiral guide ribs formed by the concrete are arranged on the outer surface of the tubular pile, piling can be carried out in the mode of rotating the tubular pile in the piling process, the piling efficiency is improved, and meanwhile the binding force between the tubular pile and soil is improved. The pipe pile is hollow, and the material cost and the overall weight are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of concrete pipe pile, concretely relates to reinforced concrete pipe pile. BACKGROUND

[0002] The concrete pipe pile is a kind of prefabricated component, mainly used in infrastructure, such as railway bridge engineering, industrial and civil building, municipal, metallurgy, port, highway and other fields.Concrete pipe pile is generally made by placing the prepared reinforcement cage into the mold, then adding concrete in the mold, and after closing the mold, it is subjected to processes such as centrifugation and steam curing, finally obtaining the concrete pipe pile.The concrete pipe pile is generally inserted into the soil by pile driver at the construction site, and when the pipe pile needs to be lengthened, the upper and lower pipe piles need to be connected by connecting pieces.The existing concrete pipe piles are various in types, and the specifications are different.The high-strength, bending-resistant and other good performance concrete pipe piles use more materials and have high cost.In the case of not significantly increasing the cost of materials, improving the strength of the pipe pile by structural arrangement is the key direction of research and development in the field of pipe pile. SUMMARY

[0003] To solve the above technical problems, the utility model adopts the technical scheme of: reinforced concrete pipe pile, including steel reinforcement cage, upper end plate, lower end plate and concrete layer, the steel reinforcement cage includes a plurality of main reinforcement, the main reinforcement is arranged in a circle and forms a cylindrical reinforcement frame, the cylindrical reinforcement frame is wound with spiral reinforcement, the spiral reinforcement is welded or connected by iron wire between the main reinforcement, the upper end plate and the lower end plate are respectively provided with a plurality of through holes for the one end of the main reinforcement to pass through, the one end of the main reinforcement passes through the through hole and is welded with the upper end plate or the lower end plate, the main reinforcement is provided with a threaded connection section after passing through the through hole, the concrete layer wraps the steel reinforcement cage, the concrete layer is located between the upper end plate and the lower end plate, the circumferential surface of the concrete layer is distributed with outer spiral guide reinforcement, and the outer spiral guide reinforcement is integrally formed with the concrete layer by concrete.

[0004] As a preferred technical scheme of the above, the inside of the concrete layer is hollow to form a hollow part, and the middle part of the upper end plate and the middle part of the lower end plate are respectively provided with a center opening communicating with the hollow part.

[0005] As a preferred technical scheme of the above, the cross section of the hollow part is circular, the inner wall of the hollow part is provided with inner spiral guide reinforcement, and the inner spiral guide reinforcement is integrally formed with the concrete layer by concrete.

[0006] As a preferred technical scheme of the above, the outer spiral guide reinforcement and the inner spiral guide reinforcement are respectively composed of a plurality of guide reinforcement segments arranged at uniform intervals.

[0007] As a preferred technical scheme of the above, the steel reinforcement cage further includes a plurality of secondary reinforcement, the secondary reinforcement is arranged in a circle and surrounds the periphery of the hollow part, the secondary reinforcement is located inside the concrete layer, and the two ends of the secondary reinforcement are welded with the upper end plate and the lower end plate respectively.

[0008] The concrete reinforced pipe pile has the advantages that the outer spiral guide ribs formed by the concrete are arranged on the outer surface of the pipe pile, the pipe pile can be driven in cooperation with the rotating mode of the pipe pile in the driving process, the driving efficiency is improved, and the bonding force between the pipe pile and the soil is improved. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 is a structural schematic view of the utility model;

[0010] Fig. 2 is a sectional structure schematic view of the utility model. DETAILED DESCRIPTION

[0011] The technical solutions of the utility model will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are some of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0012] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relationship based on the drawings shown, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0013] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0014] As Figs. 1-2As shown, the concrete reinforced pipe pile comprises a reinforcement cage, an upper end plate 1, a lower end plate 2 and a concrete layer 3, the reinforcement cage comprises a plurality of main reinforcement 4, the main reinforcement 4 is arranged in a whole circle to form a cylindrical reinforcement frame, a spiral reinforcement is wound on the cylindrical reinforcement frame, the spiral reinforcement is welded with the main reinforcement 4 or connected through iron wire binding, the upper end plate 1 and the lower end plate 2 are respectively provided with a plurality of through holes 6 for the one end of the main reinforcement 4 to pass through, the one end of the main reinforcement 4 passes through the through hole 6 and is welded with the upper end plate 1 or the lower end plate 2, the main reinforcement 4 is provided with a threaded connection section 7 after passing through the through hole 6, the concrete layer 3 wraps the reinforcement cage, the concrete layer 3 is located between the upper end plate 1 and the lower end plate 2, a plurality of outer spiral guide reinforcements 8 are distributed on the circumferential surface of the concrete layer 3, and the outer spiral guide reinforcements 8 are integrally formed with the concrete layer 3 by concrete.

[0015] Further, a hollow part 9 is formed in the inside of the concrete layer 3, and the middle part of the upper end plate 1 and the middle part of the lower end plate 2 are respectively provided with a center port 10 communicating with the hollow part 9. The hollow part 9 reduces the material consumption of the pipe pile and the weight of the pipe pile.

[0016] Further, the cross section of the hollow part 9 is circular, an inner spiral guide reinforcement 11 is arranged on the inner wall of the hollow part 9, and the inner spiral guide reinforcement 11 is integrally formed with the concrete layer 3 by concrete. When driving, the soil can enter the hollow part 9, thereby improving the combination of the pipe pile and the soil and increasing the strength of the pipe pile.

[0017] Further, the outer spiral guide reinforcement 8 and the inner spiral guide reinforcement 11 are respectively composed of a plurality of guide reinforcement sections 12 arranged at equal intervals. The guide reinforcement sections 12 are connected at intervals to form the outer spiral guide reinforcement 8 or the inner spiral guide reinforcement 11, and the intervals are beneficial for the soil to pass through when driving.

[0018] Further, the reinforcement cage further comprises a plurality of secondary reinforcements, the secondary reinforcements are arranged in a whole circle around the hollow part 9, the secondary reinforcements are located in the inside of the concrete layer 3, and the two ends of the secondary reinforcements are respectively welded with the upper end plate 1 and the lower end plate 2. The secondary reinforcement (not shown in the drawing) can improve the structural strength of the concrete layer 3 around the hollow part 9.

[0019] It is worth mentioning that the steel bars, concrete and other technical features involved in the present utility model patent application should be regarded as prior art, the specific structure, working principle and possible control mode, spatial arrangement mode of these technical features can be selected by using the conventional selection in the field, and should not be regarded as the invention point of the present utility model patent, and the present utility model patent will not be further expanded and described in detail.

[0020] The preferred embodiments of the present application are described in detail above, it should be understood that those skilled in the art can make many modifications and changes without creative labor according to the conception of the present application, therefore, all the technical solutions obtained by logical analysis, reasoning or limited experiments on the basis of the prior art according to the conception of the present application by those skilled in the art should be within the protection scope determined by the claims.

Claims

1. Concrete reinforced pipe pile, characterized in that: It includes a steel cage, an upper end plate, a lower end plate and a concrete layer. The steel cage includes several main bars. The main bars are arranged in a circle to form a cylindrical bar frame. Spiral bars are wrapped on the cylindrical bar frame. The spiral bars are welded to the main bars or connected by wire binding. The upper end plate and the lower end plate are respectively provided with several through holes for one end of the main bars to pass through. One end of the main bar passes through the through hole and is welded to the upper end plate or the lower end plate. A threaded connection section is provided after the main bar passes through the through hole. The concrete layer wraps the steel cage. The concrete layer is located between the upper end plate and the lower end plate. External spiral guide bars are distributed on the circumferential surface of the concrete layer. The external spiral guide bars and the concrete layer are integrally formed by concrete.

2. The reinforced concrete pipe pile according to claim 1, characterized in that: The interior of the concrete layer is hollowed out to form a hollow portion, and the middle portions of the upper end plate and the lower end plate are respectively provided with central openings communicating with the hollow portions.

3. The reinforced concrete pipe pile according to claim 2, characterized in that: The cross section of the hollow portion is circular, and an inner spiral guide rib is provided on the inner wall of the hollow portion. The inner spiral guide rib and the concrete layer are integrally formed by concrete.

4. The reinforced concrete pipe pile according to claim 3, characterized in that: The outer spiral guide rib and the inner spiral guide rib are respectively composed of a plurality of guide rib segments arranged at even intervals.

5. The reinforced concrete pipe pile according to claim 4, characterized in that: The steel cage also includes a plurality of auxiliary bars, which are arranged in a circle around the hollow part. The auxiliary bars are located inside the concrete layer, and the two ends of the auxiliary bars are welded to the upper end plate and the lower end plate respectively.

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