Novel prefabricated U-shaped sheet pile

Abstract

The utility model relates to a novel prefabricated U-shaped sheet pile, which comprises a pile body, the pile body is n-shaped, the pile body comprises a top plate, two waist plates and two wing plates, the left side and the right side of the top plate are respectively connected with the two waist plates extending outwards, the top plate and the two waist plates define a groove part along the forward direction of the pile body, and the two wing plates are arranged in the groove part. The two waist plates are connected with the two wing plates respectively, and the wing plates are parallel to the top plate. A plurality of main reinforcements and stirrups are arranged in the pile body, the main reinforcements extend in the length direction of the pile body, at least two rows of main reinforcements are arranged in the wing plate, and a transition surface is arranged at the joint of the wing plate and the waist plate. By increasing the sectional area of the wing plate, increasing the area for distributing the main reinforcements and additionally arranging a plurality of rows of main reinforcements in the wing plate, the structural strength is high, the unilateral bending resistance of the wing plate is greatly improved, larger bearing capacity is obtained, the contact surface between the pile bodies is large, the connection strength is high, and meanwhile, the compression resistance and pulling resistance effects of the pile bodies are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of supporting piles, and in particular relates to a novel prefabricated U-shaped sheet pile. Background Art

[0002] The structure of sheet piles is relatively simple, but it has high strength and stability. Among them, U-shaped sheet piles are the most widely used. Due to their advantages such as fast construction speed, economical cost, and durable structure, they have been widely used.

[0003] However, the existing U-shaped sheet piles are equipped with main reinforcement and stirrups inside. The layout and number of main reinforcement are important factors affecting the strength performance of the sheet pile. However, the wing width of the U-shaped sheet pile is small, and the area available for reinforcement on the wing is limited, which affects the structural performance of the U-shaped sheet pile, making the connection strength between the wings weak, resulting in a lack of overall strength and mechanical properties of the pile, and poor pull-out resistance. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a novel prefabricated U-shaped sheet pile, which increases the cross-sectional area of ​​the wing plate and the area for arranging the main reinforcement, thereby improving the compression and pull-out resistance of the pile body.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A novel prefabricated U-shaped sheet pile comprises a pile body, the pile body is in a "J" shape, the pile body comprises a top plate, two waist plates and two wing plates, the left and right sides of the top plate are respectively connected to two waist plates extending outward, the top plate and the two waist plates form a groove portion along the positive direction of the pile body, the two waist plates are respectively connected to two wing plates, and the wing plates are arranged parallel to the top plate;

[0007] A plurality of main bars and stirrups are arranged inside the pile body, wherein the main bars extend along the length direction of the pile body, wherein at least two rows of main bars are arranged in the wing plate, and a transition surface is arranged at the connection between the wing plate and the waist plate.

[0008] In a preferred embodiment of the present invention, tenons and grooves extending longitudinally of the pile body are respectively provided on the opposite sides of the two wing plates, and the opposite sides of two adjacent pile bodies form engaging surfaces with the tenons and grooves.

[0009] In a preferred embodiment of the present invention, the outer sides of the two waist panels have inclined surfaces which gradually incline outwards and extend to the wing panels.

[0010] In a preferred embodiment of the present invention, the cross section of the groove portion is semicircular, semi-elliptical, trapezoidal or rectangular.

[0011] In a preferred embodiment of the present invention, the tenon is a V-shaped structure, and the groove is a matching V-shaped structure.

[0012] In a preferred embodiment of the present invention, the tenon is an arc-shaped structure, and the groove is an arc-shaped structure matching the tenon.

[0013] In a preferred embodiment of the present invention, the main reinforcement is arranged around the inside of the pile body, and the main reinforcements are connected by the stirrups.

[0014] In a preferred embodiment of the present invention, the top plate, waist plate and wing plate are integrally cast by concrete, and hanging bars are pre-embedded on the top plate.

[0015] Beneficial effects: The utility model is a new type of prefabricated U-shaped sheet pile, which increases the cross-sectional area of ​​the wing plate, increases the area for distributing the main reinforcement, and adds multiple rows of main reinforcement inside. The structural strength is high, so that the unilateral bending performance of the wing plate is greatly improved, and a greater bearing capacity is obtained. The contact surface between the pile bodies is large, the connection strength is high, and the compression and pull-out resistance of the pile body is improved.

[0016] The utility model has a plurality of pile bodies connected side by side to form a row of piles, which has the functions of retaining soil and stopping water. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a new type of prefabricated U-shaped sheet pile provided by the utility model Figure 1 ;

[0018] Figure 2 A schematic diagram of the structure of a new type of prefabricated U-shaped sheet pile provided by the utility model Figure 2 ;

[0019] Figure 3 A partial cross-sectional view of a novel prefabricated U-shaped sheet pile provided by the utility model;

[0020] Figure 4 The utility model provides a schematic diagram of the installation structure of a novel prefabricated U-shaped sheet pile.

[0021] In the figure: 1 pile body, 11 top plate, 12 waist plate, 13 wing plate, 14 groove part, 15 transition surface. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on 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.

[0023] like Figure 1-2 As shown, the utility model provides a novel prefabricated U-shaped sheet pile, comprising a pile body 1, the pile body 1 is in a "J" shape, comprising a top plate 11, two waist plates 12 and two wing plates 13, the left and right sides of the top plate 11 are respectively connected to the two waist plates 12 extending outward, the top plate 11 and the two waist plates 12 surround a groove portion 14 along the positive direction of the pile body 1, the two waist plates 12 are respectively connected to the two wing plates 13, and the wing plates 13 are arranged parallel to the top plate 11;

[0024] like Figure 3 As shown, a plurality of main bars and stirrups are arranged inside the pile body 1, and the main bars extend along the length direction of the pile body 1. At least two rows of main bars are arranged in the wing plate 13, and a transition surface 15 is provided at the connection between the wing plate 13 and the waist plate 12. The transition surface 15 is set as an inclined surface or a curved surface to improve the connection strength between the wing plate 13 and the waist plate 12, and avoid stress concentration cracking during the piling process.

[0025] When using, Figure 4 As shown, a plurality of pile bodies 1 are inserted into the foundation, and two adjacent pile bodies 1 are butted against each other. Due to the improvement of the structure of the wing plates 13 at both ends of the pile body 1, the cross-sectional area thereof is increased, and multiple rows of main reinforcements are added inside, the structural strength is high, and the unilateral bending resistance of the wing plates 13 is further improved, thereby obtaining a greater bearing capacity and having considerable pull-out resistance.

[0026] On the opposite sides of the two wing plates 13, there are respectively provided with a tenon and a groove extending in the longitudinal direction of the pile body 1, and the opposite sides of the two adjacent pile bodies 1 form a bite surface with the tenon and the groove;

[0027] When in use, tenons and grooves are respectively provided on opposite sides of the pile body 1. During installation, two adjacent pile bodies 1 are connected by the tenons and grooves, thereby increasing the water-stopping performance of the sheet pile.

[0028] On the basis of the above embodiment, the outer sides of the two waist plates 12 have inclined surfaces which gradually tilt outward and extend to the wing plates 13, which play a role of flow diversion and buffering, thereby reducing the impact force of water flow on the sheet piles.

[0029] On the basis of the above embodiments, the cross-section of the groove portion 14 is semicircular, semi-elliptical, trapezoidal or rectangular. When the cross-section is set to be semicircular or semi-elliptical, it has the function of strengthening the overall strength of the sheet pile and solving the problem of stress concentration cracking at the fold line position in the U-shaped sheet pile; wherein, the fold line position of the trapezoidal or rectangular groove portion 14 is provided with an oblique angle or a rounded corner, which is also for solving the problem of stress concentration cracking at the fold line position in the U-shaped sheet pile.

[0030] On the basis of the above-mentioned embodiment, the tenon is a V-shaped structure, and the groove is a matching V-shaped structure, with a high degree of matching, which is convenient for connection and can increase the water-stopping performance.

[0031] On the basis of the above embodiment, the tenon is an arc-shaped structure, and the groove is an arc-shaped structure matching it.

[0032] On the basis of the above embodiment, the main reinforcement is arranged around the inside of the pile body 1, and the main reinforcements are connected by stirrups.

[0033] On the basis of the above-mentioned embodiment, the top plate 11, the waist plate 12 and the wing plate 13 are integrally cast by concrete, and the structural strength is high. Hanging rods are pre-embedded on the top plate 11 to facilitate the later construction work.

[0034] In summary:

[0035] The utility model provides a novel prefabricated U-shaped sheet pile, which increases the cross-sectional area of ​​the wing plate 13, increases the area for distributing the main reinforcement, and adds multiple rows of main reinforcement inside the wing plate 13, so that the structural strength is high, the unilateral bending performance of the wing plate 13 is greatly improved, and a greater bearing capacity is obtained, while the compression and pull-out resistance of the pile body 1 is improved.

[0036] A plurality of pile bodies 1 are connected side by side to form a row of piles, which have soil retaining and water-stopping functions. The cross-section of the groove portion 14 is semicircular, semi-elliptical, trapezoidal or rectangular. When the cross-section is set to be semicircular or semi-elliptical, it has the function of strengthening the overall strength of the sheet pile and solving the problem of stress concentration cracking at the fold line position in the U-shaped sheet pile; wherein, the fold line position of the trapezoidal or rectangular groove portion 14 is provided with an oblique angle or a rounded corner, which is also to solve the problem of stress concentration cracking at the fold line position in the U-shaped sheet pile.

[0037] The above shows and describes the basic principle, main features and advantages of the utility model. The front, back, left and right used in the text are not specific, mainly for a more intuitive description of the technical solution, and do not have a limiting effect. The technical personnel in this industry should understand that the above implementation is only to illustrate the technical concept and characteristics of the utility model, and its purpose is to enable people familiar with this technology to understand the content of the utility model and implement it, and it cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A novel prefabricated U-shaped sheet pile, comprising a pile body (1), wherein the pile body (1) is in a "J" shape, and is characterized by: The pile body (1) comprises a top plate (11), two waist plates (12) and two wing plates (13); the left and right sides of the top plate (11) are respectively connected to the two waist plates (12) extending outward; the top plate (11) and the two waist plates (12) form a groove portion (14) along the positive direction of the pile body (1); the two waist plates (12) are respectively connected to the two wing plates (13), and the wing plates (13) are arranged parallel to the top plate (11); A plurality of main reinforcements and stirrups are arranged inside the pile body (1), wherein the main reinforcements extend along the length direction of the pile body (1), wherein at least two rows of main reinforcements are arranged inside the wing plate (13), and a transition surface (15) is provided at the connection between the wing plate (13) and the waist plate (12).

2. A novel prefabricated U-shaped sheet pile according to claim 1, characterized in that: Tenons and grooves extending longitudinally of the pile body (1) are respectively provided on the opposite sides of the two wing plates (13); the tenons and grooves are respectively used to form occlusal surfaces on the opposite sides of the two adjacent pile bodies (1).

3. A novel prefabricated U-shaped sheet pile according to claim 1, characterized in that: The outer sides of the two waist panels (12) have inclined surfaces that gradually incline outwards and extend to the wing panels (13).

4. A novel prefabricated U-shaped sheet pile according to claim 1, characterized in that: The cross section of the groove portion (14) is semicircular, semi-elliptical, trapezoidal or rectangular.

5. A novel prefabricated U-shaped sheet pile according to claim 2, characterized in that: The tenon is a V-shaped structure, and the groove is a matching V-shaped structure.

6. A novel prefabricated U-shaped sheet pile according to claim 2, characterized in that: The tenon is an arc-shaped structure, and the groove is an arc-shaped structure matching it.

7. The novel prefabricated U-shaped sheet pile according to claim 1 is characterized in that: The main reinforcement is arranged around the inside of the pile body (1), and the main reinforcements are connected by the stirrups.

8. The novel prefabricated U-shaped sheet pile according to claim 1 is characterized in that: The top plate (11), the waist plate (12) and the wing plate (13) are integrally cast by concrete, and a hanging rod is pre-embedded on the top plate (11).

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