PLA recycled concrete precast pile

Abstract

The utility model relates to the technical field of concrete precast piles, in particular to a PLA recycled concrete precast pile which comprises a pile body, a positioning rod is arranged at the bottom end of the pile body, a positioning groove is formed in the top end of the pile body, a steel bar is arranged in the pile body, the two ends of the steel bar extend out of the upper end and the lower end of the pile body, and a baffle is connected to the top end of the pile body in a sliding mode. The construction method has the beneficial effects that the positioning grooves, the positioning rods, the steel bars and the baffles are pre-arranged on the surfaces of the pile bodies, the pile bodies are positioned through the positioning rods and the positioning grooves, and the structural strength is enhanced by enabling the steel bars to stretch out of the two ends of the pile bodies to weld the steel bars on the surfaces of the pile bodies; and finally, the gaps between the pile bodies are blocked through the baffles, so that concrete can be poured into the gaps between the pile bodies, finally, the pile bodies are spliced together, segmented transportation and splicing of the pile bodies are achieved, transportation of the pile bodies is facilitated, meanwhile, the height of the pile bodies is increased, and the application scene of the pile bodies is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of precast concrete piles, in particular to a PLA recycled concrete precast pile. Background Art

[0002] PLA recycled concrete precast piles are a special building material that combines PLA (polylactic acid), a biodegradable material, with recycled concrete to form an environmentally friendly and high-performance precast pile. This precast pile is manufactured in a factory and then transported to the construction site by vehicle for laying, which can greatly shorten the time required for on-site construction.

[0003] However, during transportation, the load-bearing problem of the carrier vehicle and the road conditions greatly restrict the length of the PLA recycled concrete precast piles and limit the application scope of the PLA recycled concrete precast piles. Utility Model Content

[0004] The purpose of the utility model is to provide a PLA recycled concrete prefabricated pile to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a PLA recycled concrete precast pile, comprising: a pile body, a positioning rod is arranged at the bottom end of the pile body, a positioning groove is opened at the top end of the pile body, steel bars are arranged inside the pile body, two ends of the steel bars extend from the upper and lower ends of the pile body, and a baffle is slidably connected to the top end of the pile body.

[0006] Preferably, the two ends of the steel bar extend out from the pile body surface at the same distance, the positioning groove is a cylindrical groove structure, the positioning rod is a cylindrical structure, and the height of the positioning rod is greater than the groove height of the positioning groove.

[0007] Preferably, the steel bars are provided in a plurality of groups, and the plurality of groups of steel bars are distributed in a circle about the axis of the pile body.

[0008] Preferably, concrete pouring channels are provided on the surfaces of the pile body and the positioning rod, two groups of concrete pouring ports are provided on the surface of the positioning rod, the two groups of concrete pouring ports are symmetrically distributed about the axis of the positioning rod, and the concrete pouring ports are connected to the concrete pouring channels.

[0009] Preferably, two sets of baffle slide rails are fixed on the surface of the pile body, the two sets of baffle slide rails are symmetrically distributed about the axis of the pile body, a baffle slider is slidably connected in the baffle slide rails, the baffle slider is fixed on the surface of the baffle, bolts are arranged on the surface of the baffle slider, and screw holes are opened on the inner wall of the track of the baffle slide rails.

[0010] Preferably, the pile bodies are provided in a plurality of groups, and the plurality of groups of pile bodies are distributed up and down, and the positioning rods of the upper group of pile bodies are inserted into the positioning grooves of the lower group of pile bodies.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The PLA recycled concrete prefabricated pile proposed by the utility model has positioning grooves, positioning rods, steel bars and baffles preset on the surface of the pile body, positioning of each group of pile bodies is performed by the positioning rods and the positioning grooves, the steel bars are extended out of both ends of the pile body to weld the steel bars on the surface of each group of pile bodies to strengthen the structural strength, and finally the gaps between the groups of pile bodies are blocked by the baffles so that concrete can be poured into the gaps between the groups of pile bodies, and finally the groups of pile bodies are spliced ​​together, thereby realizing the segmented transportation and assembly of the pile bodies, facilitating the transportation of the pile bodies while extending the height of the pile bodies, thereby expanding the application scenarios of the pile bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the cross-sectional structure of a single pile;

[0016] Figure 4 for Figure 3 A schematic diagram of the enlarged structure in the middle.

[0017] In the figure: pile body 1, positioning groove 2, positioning rod 3, steel bar 4, concrete pouring channel 5, concrete pouring port 6, baffle 7, baffle slide rail 8, baffle slider 9, bolt 10, screw hole 11. DETAILED DESCRIPTION

[0018] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Embodiment 1

[0020] See also Figures 1 to 4The utility model provides a technical solution: a PLA recycled concrete prefabricated pile, comprising: a pile body 1, characterized in that: a positioning rod 3 is arranged at the bottom end of the pile body 1, a positioning groove 2 is opened at the top of the pile body 1, a steel bar 4 is arranged inside the pile body 1, both ends of the steel bar 4 extend from the upper and lower ends of the pile body 1, a baffle 7 is slidably connected to the top of the pile body 1, the two ends of the steel bar 4 extend from the surface of the pile body 1 at the same distance, the positioning groove 2 is a cylindrical groove structure, the positioning rod 3 is a cylindrical structure, and the height of the positioning rod 3 is greater than the positioning groove 2. The height of the trough body is, several groups of steel bars 4 are provided, and several groups of steel bars 4 are distributed in a circle about the axis of the pile body 1, concrete pouring channels 5 are opened on the surfaces of the pile body 1 and the positioning rod 3, and two groups of concrete pouring ports 6 are opened on the surface of the positioning rod 3, and the two groups of concrete pouring ports 6 are symmetrically distributed about the axis of the positioning rod 3, and the concrete pouring ports 6 are connected with the concrete pouring channels 5, and the pile body 1 is provided with several groups, and several groups of pile bodies 1 are distributed up and down, and the positioning rods 3 of the upper group of pile bodies 1 are inserted into the positioning grooves 2 of the lower group of pile bodies 1.

[0021] In actual use, after being manufactured, several groups of pile bodies 1 can be transported to the construction site by multiple transport vehicles. After the construction starts, the first group of pile bodies 1 is lifted and laid first, and the bottom end of the first group of pile bodies 1 is buried deep underground. Then the second group of pile bodies 1 is lifted, and the positioning rod 3 at the bottom end of the second group of pile bodies 1 is inserted into the positioning groove 2 at the top end of the first group of pile bodies 1, and the several groups of steel bars 4 on the surfaces of the first group of pile bodies 1 and the second group of pile bodies 1 are aligned, and then the positions where the steel bars 4 of the first group of pile bodies 1 contact the steel bars 4 of the second group of pile bodies 1 are welded together. After welding, the baffle 7 at the top end of the first group of pile bodies 1 is slid upward until the baffle 7 is simultaneously sleeved on the surfaces of the first and second groups of pile bodies 1, and then the third group and subsequent groups of pile bodies 1 are laid according to the same steps until the required height is reached, and finally concrete is poured into the concrete pouring channel 5 set at the top end of the topmost group of pile bodies 1. , concrete fills the gaps between each group of pile bodies 1 through the concrete pouring port 6, and after the concrete fills the gaps between each group of pile bodies 1 and the concrete pouring channel 5 opened on the surface of each group of pile bodies 1, the construction is completed; the PLA recycled concrete prefabricated pile is provided with a positioning groove 2, a positioning rod 3, a steel bar 4 and a baffle 7 preset on the surface of the pile body 1, and the positioning between each group of pile bodies 1 is performed by the positioning rod 3 and the positioning groove 2, and the steel bar 4 on the surface of each group of pile bodies 1 is welded by extending the steel bar 4 from both ends of the pile body 1 to strengthen the structural strength, and finally the gaps between each group of pile bodies 1 are blocked by the baffle 7 so that concrete can be poured into the gaps between each group of pile bodies 1, and finally the groups of pile bodies 1 are spliced ​​together, so that the segmented transportation and assembly of the pile bodies 1 are realized, the transportation of the pile bodies 1 is facilitated, and the height of the pile bodies 1 is extended, so that the application scenarios of the pile bodies 1 are expanded.

[0022] Embodiment 2

[0023] On the basis of Example 1, in order to realize the sliding connection and limiting of the baffle 7 on the surface of the pile body 1, two groups of baffle slide rails 8 are fixed on the surface of the pile body 1, and the two groups of baffle slide rails 8 are symmetrically distributed about the axis of the pile body 1. A baffle slider 9 is slidably connected in the baffle slide rail 8, and the baffle slider 9 is fixed on the surface of the baffle 7. Bolts 10 are arranged on the surface of the baffle slider 9, and screw holes 11 are opened on the inner wall of the track of the baffle slide rail 8.

[0024] The baffle 7 is an annular cylindrical structure, and a baffle slider 9 is fixed to the inner ring of the baffle 7. The baffle slider 9 is slidably connected to the baffle slide rail 8 set on the surface of the pile body 1, thereby realizing the sliding connection between the baffle 7 and the pile body 1. Bolts 10 are set on the surface of the baffle slider 9. When the baffle 7 moves upward to be simultaneously sleeved on the surfaces of the upper and lower groups of pile bodies 1, the bolts 10 are just aligned with the screw holes 11. By screwing the bolts 10 into the screw holes 11, the baffle 7 can be limited.

[0025] In actual use, after being manufactured, several groups of pile bodies 1 can be transported to the construction site by multiple transport vehicles. After the construction starts, the first group of pile bodies 1 is hoisted for laying first, and the bottom end of the first group of pile bodies 1 is buried deep underground. Then, the second group of pile bodies 1 is hoisted, and the positioning rods 3 at the bottom ends of the second group of pile bodies 1 are inserted into the positioning grooves 2 at the top ends of the first group of pile bodies 1. The several groups of steel bars 4 on the surfaces of the first group of pile bodies 1 and the second group of pile bodies 1 are aligned, and then the positions where the steel bars 4 of the first group of pile bodies 1 contact the steel bars 4 of the second group of pile bodies 1 are welded together. After the welding is completed, the first group of pile bodies 1 is The baffle plate 7 at the top of the pile body 1 slides upward until the baffle plate 7 is simultaneously sleeved on the surface of the first and second pile bodies 1, and then the third and subsequent pile bodies 1 are laid according to the same steps until the required height is reached, and finally concrete is poured into the concrete pouring channel 5 set at the top of the top pile body 1, and the concrete fills the gaps between the pile bodies 1 through the concrete pouring port 6. After the concrete fills the gaps between the pile bodies 1 and the concrete pouring channels 5 opened on the surface of the pile bodies 1, the construction is completed; the PLA regeneration The concrete prefabricated pile is prepared by presetting positioning grooves 2, positioning rods 3, steel bars 4 and baffles 7 on the surface of the pile body 1, positioning each group of pile bodies 1 by the positioning rods 3 and the positioning grooves 2, and welding the steel bars 4 on the surface of each group of pile bodies 1 by extending the steel bars 4 from both ends of the pile body 1 to strengthen the structural strength, and finally the baffles 7 are used to block the gaps between the groups of pile bodies 1 so that concrete can be poured into the gaps between the groups of pile bodies 1, and finally the groups of pile bodies 1 are spliced ​​together, realizing the segmented transportation and assembly of the pile bodies 1, and facilitating the transportation of the pile bodies 1. At the same time, the height of the pile body 1 is extended, so that the application scenarios of the pile body 1 are expanded; the baffle 7 is an annular cylindrical structure, and the inner ring of the baffle 7 is fixed with a baffle slider 9, and the baffle slider 9 is slidably connected to the baffle slide rail 8 set on the surface of the pile body 1, thereby realizing the sliding connection between the baffle 7 and the pile body 1. The surface of the baffle slider 9 is provided with bolts 10. When the baffle 7 moves upward to be simultaneously sleeved on the surfaces of the upper and lower groups of pile bodies 1, the bolts 10 are just aligned with the screw holes 11. By screwing the bolts 10 into the screw holes 11, the baffle 7 can be limited.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PLA recycled concrete prefabricated pile, comprising: A pile body (1), characterized in that: a positioning rod (3) is provided at the bottom end of the pile body (1), a positioning groove (2) is provided at the top end of the pile body (1), a steel bar (4) is provided inside the pile body (1), two ends of the steel bar (4) extend from the upper and lower ends of the pile body (1), and a baffle (7) is slidably connected to the top end of the pile body (1); The two ends of the steel bar (4) extend from the surface of the pile body (1) by the same distance, the positioning groove (2) is a cylindrical groove structure, the positioning rod (3) is a cylindrical structure, and the height of the positioning rod (3) is greater than the groove height of the positioning groove (2).

2. A PLA recycled concrete prefabricated pile according to claim 1, characterized in that: The steel bars (4) are provided in a plurality of groups, and the plurality of groups of steel bars (4) are distributed in a circle about the axis of the pile body (1).

3. A PLA recycled concrete prefabricated pile according to claim 1, characterized in that: Concrete pouring channels (5) are provided on the surfaces of the pile body (1) and the positioning rod (3), and two groups of concrete pouring ports (6) are provided on the surface of the positioning rod (3). The two groups of concrete pouring ports (6) are symmetrically distributed about the axis of the positioning rod (3), and the concrete pouring ports (6) are connected to the concrete pouring channels (5).

4. The PLA recycled concrete prefabricated pile according to claim 1, characterized in that: Two groups of baffle slide rails (8) are fixed on the surface of the pile body (1), and the two groups of baffle slide rails (8) are symmetrically distributed about the axis of the pile body (1). A baffle slider (9) is slidably connected in the baffle slide rail (8), and the baffle slider (9) is fixed on the surface of the baffle (7). Bolts (10) are arranged on the surface of the baffle slider (9), and screw holes (11) are opened on the inner wall of the track of the baffle slide rail (8).

5. The PLA recycled concrete prefabricated pile according to claim 1, characterized in that: The pile bodies (1) are provided in a plurality of groups, and the plurality of groups of pile bodies (1) are distributed in an upper and lower manner, and the positioning rods (3) of the upper group of pile bodies (1) are inserted into the positioning grooves (2) of the lower group of pile bodies (1).

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