Assembled prestressed pipe pile

Abstract

The utility model relates to a split mounting type prestressed pipe pile which comprises an upper pipe joint and a lower pipe joint, a protruding cushion block is arranged at the bottom of the upper pipe joint, a groove is formed between the protruding cushion block and the bottom face of the upper pipe joint, a positioning protrusion is arranged on the top face of the groove, an L-shaped groove matched with the protruding cushion block is formed in the top of the lower pipe joint, and the protruding cushion block is arranged in the L-shaped groove. The protruding cushion block can enter the groove body of the L-shaped groove through the vertical part of the L-shaped groove and is transversely embedded into the transverse part of the L-shaped groove, a positioning groove matched with the positioning protrusion is formed in the notch of the L-shaped groove in the horizontal direction, and the positioning groove is matched with the positioning protrusion. The prefabricated tubular pile has the advantages that the prefabrication degree is high, and all the structures are synchronously performed in the prefabrication operation of the prefabricated tubular pile; quick butt joint and unlocking separation between pipe joints can be achieved, and the construction quality of the prestressed pipe pile is improved; rapid and accurate penetration of the prestressed tendons can be ensured; the construction efficiency is high; and the structure is simple and reasonable, cost-saving, convenient to construct and suitable for popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of prestressed pipe piles, in particular to an assembled prestressed pipe pile. Background Art

[0002] Precast pipe piles are a common type of construction pile, offering advantages such as high efficiency and guaranteed quality. During construction, precast pipe piles are prefabricated in factories according to different burial depth requirements and then transported to the construction site. However, at greater burial depths, the precast pipe piles are too long to be transported.

[0003] Therefore, segmented prefabricated prestressed pipe piles came into being. Their structure is to divide the pipe piles into several segments along the length direction of the pipe piles, make certain connections between the pipe segments, and then connect the several segments through post-tensioned prestressed beams to form an overall structure, thus realizing the construction method from "segmented prefabrication in the factory" to "assembly on the construction site". In addition to maintaining the advantages of prefabricated construction, it further solves the transportation problem.

[0004] Currently, the most common method for assembling pipe pile segments is through rigid connections, such as welding and threading. The upper and lower adjacent pipe pile segments are directly fixed to each other after being connected. Therefore, the positional accuracy between the two pipe pile segments must be strictly controlled during assembly, requiring extremely high construction precision. Furthermore, if the upper and lower pipe pile segments are not aligned correctly, such as if there is insufficient concentricity, not only will the structural performance of the prestressed pipe pile be reduced, but it may also lead to inconvenience or even failure in subsequent prestressing stranding. Summary of the Invention

[0005] The purpose of the utility model is to provide an assembled prestressed pipe pile based on the above-mentioned deficiencies of the existing technology, which realizes the rapid connection between the upper and lower pipe sections by setting a quick connection structure between the upper and lower pipe sections, and realizes the rapid alignment of the prestressed channel by setting an alignment structure.

[0006] The purpose of this utility model is achieved by the following technical solutions:

[0007] An assembled prestressed pipe pile, characterized in that it comprises an upper pipe section and a lower pipe section, wherein a quick connection structure and an alignment structure are provided between the upper pipe section and the lower pipe section, wherein:

[0008] The quick connection structure includes a protruding pad provided on the upper pipe section, a groove being formed between the protruding pad and the bottom surface of the upper pipe section, and an L-shaped groove adapted to the protruding pad being provided on the top of the lower pipe section, wherein the protruding pad can enter the groove body through the vertical portion of the L-shaped groove and be laterally embedded in the horizontal portion of the L-shaped groove;

[0009] The alignment structure includes a positioning protrusion provided on the top surface of the groove, and a positioning groove provided in the horizontal direction of the notch of the L-shaped groove and matching with the positioning protrusion, wherein the positioning groove matches with the positioning protrusion;

[0010] Through holes for passing prestressed tendons are reserved on the upper pipe section and the lower pipe section, and the upper pipe section and the lower pipe section are connected and fixed by passing the prestressed tendons to form an integral structure.

[0011] The notch depth of the positioning groove is shallower than the notch depth of the transverse portion of the L-shaped groove, and the alignment of the through holes between the upper pipe section and the lower pipe section is achieved by the cooperation between the positioning groove and the positioning protrusion.

[0012] The width of the vertical part of the L-shaped groove matches the width of the protruding pad, the height of the horizontal part of the L-shaped groove matches the height of the protruding pad, and the height difference between the vertical part of the L-shaped groove and its horizontal part matches the height of the groove.

[0013] Two protruding pads are symmetrically arranged on the upper pipe section, and two L-shaped grooves are arranged at corresponding positions of the lower pipe section. The two protruding pads correspond to the two L-shaped grooves and are embedded in each other.

[0014] The advantages of the present invention are: a high degree of prefabrication, with all the structures arranged being carried out simultaneously during the prefabrication of the prefabricated pipe piles; rapid docking and unlocking and separation between pipe sections can be achieved, thereby improving the construction quality of the prestressed pipe piles; rapid and accurate insertion of the prestressed tendons can be ensured; construction efficiency is high; the structure is simple and reasonable, cost-effective, construction is convenient, and the invention is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the alignment structure in the present utility model. DETAILED DESCRIPTION

[0017] The following is a further detailed description of the features of the present invention and other related features through embodiments in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:

[0018] like Figure 1-2 As shown, the marks 1-8 in the figure respectively represent: upper pipe section 1, lower pipe section 2, protruding pad 3, L-shaped groove 4, groove 5, positioning protrusion 6, positioning groove 7, and through hole 8.

[0019] Example: Figure 1As shown, the assembled prestressed pipe pile in this embodiment includes an upper pipe segment 1 and a lower pipe segment 2, both of which are prefabricated components prefabricated in a prefabrication factory, and their structural shapes and sizes meet corresponding construction requirements.

[0020] In this embodiment, a quick connection structure and an alignment structure are provided between the upper pipe section 1 and the lower pipe section 2, wherein the quick connection structure is used to realize rapid assembly and docking between the upper pipe section 1 and the lower pipe section 2, while the alignment structure is used to align the upper pipe section 1 and the lower pipe section 2, that is, to ensure the position accuracy of the two.

[0021] Specifically, if Figure 1 As shown, a protruding pad 3 is provided at the bottom of the upper pipe section 1. The outer contour shape and size of the protruding pad 3 are the same as the outer contour shape and size of the upper pipe section 1, and the protruding pad 3 is arranged at a certain distance from the bottom surface of the upper pipe section 1 to form an inward-retracted groove 5.

[0022] An L-shaped groove 4 is provided at the top of the lower pipe section 2. This L-shaped groove 4 consists of a vertical portion and a horizontal portion that intersect each other. The vertical portion opens at the top of the lower pipe section 2. The width of the vertical portion of the L-shaped groove 4 matches the width of the protruding spacer 3, the height of the horizontal portion of the L-shaped groove 4 matches the height of the protruding spacer 3, and the height difference between the vertical portion and the horizontal portion of the L-shaped groove 4 matches the height of the groove 5.

[0023] In this embodiment, the protruding pad 3 and the L-shaped groove 4 are combined to form a quick connection structure. When in use, the upper pipe section 1 is hoisted above the lower pipe section 2, and the protruding pad 3 at the bottom of the upper joint 1 is aligned with the L-shaped groove 4 at the top of the lower pipe section 2. The protruding pad 3 is inserted into the L-shaped groove 4 along the vertical part of the L-shaped groove 4; the upper pipe section 1 is lowered a certain distance, and the protruding pad 3 is continuously moved downward along the vertical part of the L-shaped groove 4 until it reaches the bottom position of the vertical part; then, the upper pipe section 1 is rotated (at Figure 1 In the case shown, the upper pipe section 1 rotates clockwise; if the transverse portion of the L-shaped groove 4 is located on the other side, the upper pipe section 1 is adjusted to rotate counterclockwise), so that the protruding pad 3 continues to move laterally along the transverse portion of the L-shaped groove 4 until it reaches the bottom of the groove of its transverse portion, thereby completing the embedding of the protruding pad 3 into the L-shaped groove 4 and realizing a quick connection between the upper pipe section 1 and the lower pipe section 2.

[0024] In this embodiment, when problems such as verticality deviation of the pipe pile occur, the upper pipe section 2 can be rotated in reverse to unlock and separate the upper pipe section 1 and the lower pipe section 2 to solve the pipe pile construction quality problem.

[0025] At this time, if Figure 1As shown, since the L-shaped groove 4 in the present application is an open structure on the inner wall of the lower pipe section 2, there is a certain amount of adjustment between the upper pipe section 1 and the lower pipe section 2 in the horizontal direction.

[0026] In this embodiment, if Figure 1 As shown, the alignment structure includes a positioning groove 7 provided on one side of the L-shaped groove 4 , the groove depth of the positioning groove 7 being slightly shallower than the groove depth of the transverse portion of the L-shaped groove 4 , and at the same time, the positioning groove 7 is arranged to extend circumferentially along the lower pipe section 2 .

[0027] A positioning protrusion 6 is provided on the top surface of the groove 5 at the bottom of the upper pipe section 1 . The positioning protrusion 6 and the positioning groove 7 form a matching structure, meeting the requirement that the positioning protrusion 6 can be inserted into the positioning groove 7 .

[0028] As the upper pipe segment 1 is screwed into the lower pipe segment 2, the positioning protrusion 6 simultaneously rotates into the positioning groove 7. A longitudinally extending through-hole 8 is provided on each of the upper and lower pipe segments 1 and 2. When aligned, the upper and lower through-holes 8 serve as channels for the insertion of prestressed tendons. The prestressed tendons can be tensioned after insertion to ensure the connection between the upper and lower pipe piles. At this point, in the radial direction of the pipe segments, i.e., in the horizontal direction of the upper and lower pipe segments, the positioning protrusion 6 is laterally constrained within the positioning groove 7. This improves the horizontal assembly accuracy between the upper and lower pipe segments, thereby ensuring the alignment of the through-holes between the upper and lower pipe segments.

[0029] In the specific implementation of this embodiment, two protruding pads 3 are symmetrically arranged on the upper pipe section 1, and two corresponding L-shaped grooves 4 are arranged at corresponding positions on the lower pipe section 2. The two protruding pads 3 are respectively embedded in the two L-shaped grooves 4 in a one-to-one correspondence, thereby further improving the connection performance between the upper pipe section 1 and the lower pipe section 2. Similarly, a positioning groove 7 and a matching positioning protrusion 6 are provided at the position of each L-shaped groove 4.

[0030] Although the above embodiments have described the concepts and embodiments of the present invention in detail with reference to the accompanying drawings, ordinary technicians in this field can recognize that various improvements and modifications can still be made to the present invention without departing from the scope of the claims, so they are not described here one by one.

Claims

1. An assembled prestressed pipe pile, characterized by: The pipe comprises an upper pipe section and a lower pipe section, wherein a quick connection structure and an alignment structure are provided between the upper pipe section and the lower pipe section, wherein: The quick connection structure includes a protruding pad provided on the upper pipe section, a groove being formed between the protruding pad and the bottom surface of the upper pipe section, and an L-shaped groove adapted to the protruding pad being provided on the top of the lower pipe section, wherein the protruding pad can enter the groove body through the vertical portion of the L-shaped groove and be laterally embedded in the horizontal portion of the L-shaped groove; The alignment structure includes a positioning protrusion provided on the top surface of the groove, and a positioning groove provided in the horizontal direction of the notch of the L-shaped groove and matching with the positioning protrusion, wherein the positioning groove matches with the positioning protrusion; Through holes for passing prestressed tendons are reserved on the upper pipe section and the lower pipe section, and the upper pipe section and the lower pipe section are connected and fixed by passing the prestressed tendons to form an integral structure.

2. The assembled prestressed pipe pile according to claim 1, characterized in that: The notch depth of the positioning groove is shallower than the notch depth of the transverse portion of the L-shaped groove, and the alignment of the through holes between the upper pipe section and the lower pipe section is achieved by the cooperation between the positioning groove and the positioning protrusion.

3. The assembled prestressed pipe pile according to claim 1, characterized in that: The width of the vertical part of the L-shaped groove matches the width of the protruding pad, the height of the horizontal part of the L-shaped groove matches the height of the protruding pad, and the height difference between the vertical part of the L-shaped groove and its horizontal part matches the height of the groove.

4. The assembled prestressed pipe pile according to claim 1, characterized in that: Two protruding pads are symmetrically arranged on the upper pipe section, and two L-shaped grooves are arranged at corresponding positions of the lower pipe section. The two protruding pads correspond to the two L-shaped grooves and are embedded in each other.

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