Rectangular pyramid pile shoe of square pile

Abstract

The utility model discloses a rectangular pyramid pile shoe of a square pile, which belongs to the technical field of design and construction of building materials and comprises a pile shoe main body covering a pile tip and a pile body and pile shoe connecting steel bar for fixing the pile shoe main body on the pile tip, one end, connected with the pile shoe, of the pile body is pre-embedded into the square pile from the edge position of the pile tip, and the other end extends out of the square pile and is bent by a certain length along the pile tip; the pile shoe main body is of a rectangular pyramid structure and comprises four pile shoe angle steels and flat steel connecting beams, the pile shoe angle steels cover the edges of the pile tip, the tip ends of the pile shoe angle steels are fixed together, the flat steel connecting beams are arranged between every two adjacent pile shoe angle steels and play a fixing role, and the pile shoe angle steels are fixed to the extending ends of the pile body and the pile shoe connecting steel bars; compared with a steel sheet pile shoe, the steel sheet pile shoe is less in steel consumption and higher in spatial stability compared with a steel bar pile shoe, the shape of the shoe body is beneficial to soil cutting, the shoe body can smoothly penetrate through a hard clay layer and a dense sand layer in the pile sinking process, the construction progress is improved, and pile body damage caused by high-frequency and strong hammering is avoided.

Description

Technical Field

[0001] The utility model relates to a square pile shoe, in particular to a quadrangular pyramid pile shoe of a square pile, and belongs to the technical field of building material design and construction. Background Art

[0002] Compared with prestressed pipe piles, prestressed square piles have the advantages of low construction damage rate, good impact resistance and high stability, and have become more and more popular. Figure 1 The figure shows the structure of a prestressed square pile, including a pile body 4 and a pile tip 5. The pile body 4 is square with a width of B. The pile tip 5 is a four-sided pyramid structure with a height of L and a tip width of b. At present, pipe pile shoes are more common, and square pile shoes are relatively rare. There are two common square pile shoes, one is a steel sheet pile shoe and the other is a steel bar pile shoe. However, the steel sheet pile shoe uses a large amount of steel and has a high cost. Although the steel bar pile shoe uses less steel and has a low cost, its spatial stability is poor and it is not easy to penetrate hard clay layers and dense sand layers. When encountering hard clay layers and dense sand layers, it requires high-frequency and strong hammering of the pile body to penetrate, which can easily cause damage to the pile body. Therefore, it is particularly important to invent a new square pile shoe. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the utility model provides a four-sided pyramid pile shoe for square piles, which uses less steel than steel sheet pile shoes and has stronger spatial stability than steel bar pile shoes. The shape of the shoe body is conducive to cutting soil, and can smoothly penetrate hard clay layers and dense sand layers during the pile sinking process, thereby improving construction progress and avoiding damage to the pile body caused by high-frequency and strong hammering.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a four-sided pyramid pile shoe for a square pile, comprising a pile shoe main body covered and buckled on the pile tip and a pile body and pile shoe connecting steel bar fixing the pile shoe main body on the pile tip; one end of the pile body and pile shoe connecting steel bar is pre-embedded in the square pile from the edge position of the pile tip, and the other end extends out of the square pile and is bent along the pile tip for a certain length; the pile shoe main body is a four-sided pyramid structure, comprising four pile shoe angle steels covered on the edge of the pile tip and fixed together with their tips, and a flat steel connecting beam for fixing two adjacent pile shoe angle steels, and the pile shoe angle steel is fixed on the protruding end of the pile body and pile shoe connecting steel bar.

[0005] A further improvement of the technical solution of the utility model is that the length of the steel bars connecting the pile body and the pile shoe buried in the square pile exceeds 35 times the diameter of the steel bars, and the length exposed from the square pile is not less than 300 mm.

[0006] A further improvement of the technical solution of the utility model is that the contact portion between the pile shoe angle steel and the pile body and the pile shoe connecting steel bar is welded over the entire length.

[0007] A further improvement of the technical solution of the utility model is that the flat steel connecting beam between any two adjacent pile shoe angle steels is set in two, one is located at the bottom end of the pile shoe angle steel, and the other is located between the pile shoe tip and the bottom end.

[0008] Due to the adoption of the above technical solution, the technical progress achieved by the utility model is:

[0009] The pile shoe angle steel of the utility model is installed tightly against the four edges of the quadrangular platform pile tip, and the bottoms are welded together to form the pile shoe tip. The overall steel consumption is small, and the shape of the shoe body is conducive to soil cutting. When sinking the pile, it can penetrate the hard soil layer and dense sand layer with a smaller hammer force and fewer hammering times, and sink the square pile to the established design elevation, thereby avoiding damage to the pile tip and the pile body.

[0010] In the utility model, two flat steel connecting beams are arranged between any two adjacent pile shoe angle steels, thereby enhancing the overall stability and strength of the utility model.

[0011] The utility model has the steel bars for connecting the pile body and the pile shoe buried in the pile body for a length exceeding 35 times the diameter of the steel bars and exposed by no less than 300 mm from the pile body. The pile shoe angle steel and the contact parts between the pile body and the pile shoe steel bars are welded over their entire length, which increases the stability of the connection between the utility model and the square pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the square pile plane;

[0013] Figure 2 It is a plan view of the utility model after installation;

[0014] Figure 3 It is a plan view of the steel bars connecting the pile body and the pile shoe;

[0015] Among them, 1. Steel bars connecting the pile body and the pile shoe; 2. Angle steel of the pile shoe; 3. Flat steel connecting beam; 4. Pile body; 5. Pile tip; 6. Pile shoe body. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below in conjunction with the embodiments:

[0017] like Figure 1 As shown, the prestressed square pile includes two parts, namely a pile body 4 and a pile tip 5. The pile body 4 is square with a width of B, and the pile tip 5 is a quadrangular pyramid with a height of L and a width of b at the tip. The square pile of this structure has a low breakage rate during construction, good impact resistance and high stability.

[0018] like Figure 2As shown, when the utility model is installed, first, a pile body and pile shoe connecting steel bar 1 is buried inside the square pile at the four edges of the four-sided platform pile tip 5. The pile body and pile shoe connecting steel bar 1 is bent and divided into two parts: an embedded pile body and an exposed pile body. The length of the embedded pile body part exceeds 35 times the diameter of the steel bar, and the exposed pile body part is completely in contact with the four edges of the pile tip, and the length is not less than 300mm. Figure 3 Then install four pile shoe angle steels 2 close to the four edges of the four-sided platform pile tip to form a pile shoe body 6, and the bottoms of the four pile shoe angle steels 2 are welded together to form a pile shoe tip.

[0019] The utility model uses less steel as a whole, and the shape of the shoe body is conducive to cutting soil. When sinking piles, it can penetrate hard soil layers and dense sand layers with less hammering force and fewer hammering times, and sink the square pile to the predetermined design elevation to avoid damage to the pile tip 5 and the pile body 4. The contact parts of the pile shoe angle steel 2 and the pile body and the pile shoe connecting steel bar 1 are fully welded, which ensures the stability of the connection between the utility model and the square pile; two flat steel connecting beams 3 for fixing are set between two adjacent pile shoe angle steels 2, which enhances the overall stability and strength of the utility model.

Claims

1. A quadrangular pyramid pile shoe for a square pile, characterized in that: The invention comprises a pile shoe body (6) which is buckled on the pile tip (5) and a pile body and pile shoe connecting steel bar (1) which fixes the pile shoe body (6) on the pile tip (5); one end of the pile body and pile shoe connecting steel bar (1) is pre-buried in a square pile from the edge position of the pile tip (5), and the other end extends out of the square pile and is bent along the pile tip (5) for a certain length; the pile shoe body (6) is in a four-sided pyramid structure, comprising four pile shoe angle steels (2) which are covered on the edge of the pile tip (5) and whose tips are fixed together, and a flat steel connecting beam (3) which is arranged between two adjacent pile shoe angle steels (2) and plays a fixing role, and the pile shoe angle steel (2) is fixed on the protruding end of the pile body and pile shoe connecting steel bar (1).

2. The quadrangular pyramid pile shoe of a square pile according to claim 1, characterized in that: The length of the pile body and pile shoe connecting steel bars (1) embedded in the square pile exceeds 35 times the diameter of the steel bars, and the length exposed from the square pile is not less than 300 mm.

3. The quadrangular pyramid pile shoe of a square pile according to claim 1, characterized in that: The contact parts between the pile shoe angle steel (2) and the pile body and the pile shoe connecting steel bar (1) are welded over the entire length.

4. The quadrangular pyramid pile shoe of a square pile according to claim 1, characterized in that: The flat steel connecting beam (3) between any two adjacent pile shoe angle steels (2) is arranged in two sections, one section is located at the bottom end of the pile shoe angle steel (2), and the other section is located between the pile shoe tip and the bottom end.

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