A kind of prestressed pipe pile core sealing device of soil-free type

Abstract

The utility model relates to the field of pile foundation construction, and the utility model aims at providing a kind of exempted from to dig soil type prestressed pipe pile core closing device, it is installed on prestressed pipe pile, the prestressed pipe pile is vertically inserted in soil body, both ends are equipped with pile end plate, a plurality of reserved holes of circumferential interval arrangement are set up on the pile end plate, exempted from to dig soil type prestressed pipe pile core closing device includes closing disc and multiple positioning parts;The closing disc is closed and is located at the pile core opening of the pile end plate of prestressed pipe pile top, multiple positioning parts are arranged around closing disc, connecting rope is fixed between the positioning part and closing disc, the positioning part is inserted in the reserved hole of pile end plate, and it is used for limiting and fixing closing disc.The utility model construction is simple, and plugging is fast, with good economic benefit.

Description

Technical Field

[0001] This utility model relates to the field of pile foundation construction, specifically a soil-free prestressed pipe pile core sealing device. Background Technology

[0002] Prestressed concrete pipe piles are widely used in various foundation engineering projects due to their advantages such as convenient construction and high bearing capacity. However, during the actual pile driving process, because prestressed concrete pipe piles are hollow structures, when the top of the pipe pile is pressed below the ground, the surrounding soil is prone to collapse and enter the pipe pile through the opening in the pile core. This phenomenon can affect the quality of the pile driving.

[0003] To prevent soil from falling into the pile core, current technology typically involves temporarily sealing the pile core with concrete, which is then removed manually or mechanically after the pile is driven. However, this method is cumbersome and has high labor costs. Utility Model Content

[0004] The purpose of this utility model is to provide a soil-free prestressed pipe pile core sealing device, which is simple to construct, quick to seal, and has good economic benefits.

[0005] The objective of this utility model is achieved through the following technical solution: A soil-free prestressed pipe pile core sealing device is installed on a prestressed pipe pile, wherein the prestressed pipe pile is vertically inserted into the soil and has pile end plates at both ends. The pile end plates have several circumferentially spaced reserved holes. The soil-free prestressed pipe pile core sealing device includes a sealing plate and multiple positioning components. The sealing disc is installed at the pile core opening of the pile end plate at the top of the prestressed pipe pile. Multiple positioning elements are arranged around the sealing disc. A connecting rope is fixed between the positioning elements and the sealing disc. The positioning elements are inserted into the reserved holes in the pile end plate and are used to limit and fix the sealing disc.

[0006] Compared with the prior art, the advantages of this utility model are: 1. By using the combination of the sealing disc, connecting rope, and positioning components, the sealing disc can be fixed at the pile core opening of the pile end plate, preventing soil between piles from falling into the pile core during the pile driving process. This not only improves the quality of pile driving but also avoids the traditional pile core sealing and soil removal processes, reducing construction costs and improving work efficiency. Attached Figure Description

[0007] Figure 1 This is a structural schematic diagram of the prestressed pipe pile of this utility model; Figure 2 This is a schematic diagram of the structure of the pile end plate of this utility model; Figure 3This is an installation diagram of a prestressed pipe pile core sealing device that does not require soil removal, according to this utility model. Figure 4 yes Figure 3 Top view; Figure 5 This is a schematic diagram of Embodiment 1 of the prestressed pipe pile core sealing device of the present invention; Figure 6 This is a schematic diagram of Embodiment 2 of the prestressed pipe pile core sealing device of the present invention; Figure 7 This is a structural cross-sectional view of the closed disk of this utility model; Figure 8 This is a schematic diagram illustrating the principle of this utility model for sealing soil. Figure 9 yes Figure 8 A schematic diagram of a soil-free prestressed pipe pile core sealing device of this utility model, which involves excavating the soil between piles and removing the soil.

[0008] Labeling Explanation: 1 Prestressed Pipe Pile, 2 Pile End Plate, 3 Reserved Hole, 4 Sealing Plate, 41 Arc-shaped Guide Surface, 42 Annular Protrusion, 51 Pin, 52 Columnar Magnet, 6 Connecting Rope, 7 Waterproof Sealing Ring, 100 Soil Between Pile, 200 Pre-set Exposed Soil. Detailed Implementation

[0009] The present invention will now be described in detail with reference to the accompanying drawings and embodiments: like Figure 1-5 and Figure 7 The diagram shown is a schematic representation of Embodiment 1 of a prestressed pipe pile core sealing device that does not require soil removal, provided by this utility model: A soil-free prestressed pipe pile core sealing device is installed on a prestressed pipe pile 1. The prestressed pipe pile 1 is vertically inserted into the soil, and both ends of it are provided with pile end plates 2. The pile end plates 2 are provided with a number of circumferentially spaced reserved holes 3. The soil-free prestressed pipe pile core sealing device includes a sealing plate 4 and multiple positioning components. The sealing disc 4 is installed at the pile core opening of the pile end plate 2 at the top of the prestressed pipe pile 1. Multiple positioning elements are arranged around the sealing disc 4. A connecting rope 6 is fixed between the positioning elements and the sealing disc 4. The positioning elements are inserted into the reserved holes 3 in the pile end plate 2 and are used to limit and fix the sealing disc 4.

[0010] like Figure 5 As shown, in this embodiment 1, the positioning component is a pin 51, which is inserted into the reserved hole 3.

[0011] Specifically, the positioning element is preferably provided in three parts.

[0012] The closed disc 4 is interference-fitted to the pile core opening of the pile end plate 2, and the outer peripheral wall of the closed disc 4 is provided with an arc-shaped guide surface 41 that cooperates with the guide of the pile core opening of the pile end plate 2.

[0013] The top of the outer peripheral wall of the closed disk 4 is provided with an annular protrusion 42, which is matched with the top side of the pile end plate 2 for limiting.

[0014] Furthermore, the connecting rope 6 is a steel strand, with one end of the connecting rope 6 welded to the annular flange 42 and the other end welded to the top of the positioning component.

[0015] The pile core is provided with several waterproof sealing rings 7, which are fixedly installed on the inner wall of the prestressed pipe pile 1 at intervals, and the waterproof sealing rings 7 are tightly fitted to the outer peripheral wall of the sealing plate 4.

[0016] It should be noted that the pile end plate 2 described in both Embodiment 1 and Embodiment 2 is made of steel. Figure 6 The diagram shown is a schematic diagram of Embodiment 2 of this utility model. The difference between Embodiment 2 and Embodiment 1 is that the positioning element is a columnar magnet 52, which is fixed in the reserved hole 3 by magnetic attraction.

[0017] The general usage of this utility model is as follows: First, align the sealing disc 4 with the core opening of the pile end plate 2 at the top of the prestressed concrete pipe pile 1. Then, insert multiple positioning components into the corresponding reserved holes 3 on the pile end plate 2. After the positioning components are inserted, the connecting rope 6 is in a taut state, thereby limiting the sealing disc 4 at the core opening of the pile end plate 2.

[0018] Next, the pile driving construction begins. Under the gravity of the hammer pile machine or pile driver, the sealing plate 4 is interference-fitted to the pile core opening of the pile end plate 2 and tightly fits with the waterproof sealing ring 7 inside the pile core. This prevents the soil 100 between the prestressed pipe pile 1 from falling into the pile core during the pile driving process, thus avoiding soil falling into the pile core and affecting the pile driving quality.

[0019] After pile driving is completed, as follows Figure 9 As shown, excavate the soil between the piles by 100 mm until the top of the prestressed pipe pile 1 is 200 mm higher than the pre-set exposed soil. At this point, cut the connecting rope 6 and remove it along with the positioning component to complete the pile core sealing operation.

[0020] It should be specifically noted that if the on-site construction requires the sinking of multiple vertically spliced ​​prestressed pipe piles 1, then this utility model device only needs to be installed on the top end plate 2 of the uppermost prestressed pipe pile 1.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A soil-free prestressed pipe pile core sealing device, installed on a prestressed pipe pile (1), wherein the prestressed pipe pile (1) is vertically inserted into the soil, and both ends are provided with pile end plates (2), wherein the pile end plates (2) are provided with a plurality of circumferentially spaced reserved holes (3), characterized in that: The core sealing device for prestressed pipe piles that do not require soil excavation includes a sealing disc (4) and multiple positioning components; The sealing disc (4) is sealed at the pile core opening of the pile end plate (2) at the top of the prestressed pipe pile (1). Multiple positioning elements are arranged around the sealing disc (4). A connecting rope (6) is fixed between the positioning elements and the sealing disc (4). The positioning elements are inserted into the reserved hole (3) of the pile end plate (2) and used to limit and fix the sealing disc (4).

2. The soil-free prestressed pipe pile core sealing device according to claim 1, characterized in that: The positioning component is a pin (51), which is inserted into the reserved hole (3).

3. The soil-free prestressed pipe pile core sealing device according to claim 1, characterized in that: The pile end plate (2) is made of steel, and the positioning component is a columnar magnet (52). The columnar magnet (52) is fixed in the reserved hole (3) by magnetic attraction.

4. The soil-free prestressed pipe pile core sealing device according to claim 1, characterized in that: The closed disc (4) is interference-fitted to the pile core opening of the pile end plate (2), and the outer peripheral wall of the closed disc (4) is provided with an arc-shaped guide surface (41) that cooperates with the guide of the pile core opening of the pile end plate (2).

5. The soil-free prestressed pipe pile core sealing device according to claim 4, characterized in that: The top of the outer peripheral wall of the closed disk (4) is provided with an annular protrusion (42), which is matched with the top side of the pile end plate (2).

6. The soil-excavation-free prestressed pipe pile core sealing device according to claim 5, characterized in that: The connecting rope (6) is a steel strand, with one end of the connecting rope (6) welded to the annular flange (42) and the other end welded to the top of the positioning component.

7. The soil-free prestressed pipe pile core sealing device according to claim 4, characterized in that: The pile core is provided with several waterproof sealing rings (7), which are fixed at intervals on the inner wall of the prestressed pipe pile (1), and the waterproof sealing rings (7) are tightly attached to the outer peripheral wall of the sealing plate (4).

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