Precast plate pile

Abstract

The utility model discloses a prefabricated plate pile which comprises a supporting plate pile, the cross section of the supporting plate pile is of a U-shaped structure, concave-convex openings used for butt joint when a supporting structure is formed are formed in the two ends of the supporting plate pile, and a plurality of prestressed steel bars are arranged in the supporting plate pile in the longitudinal direction. The end of the prestressed steel bar is connected with a steel bar sleeve nut arranged at the end of the supporting sheet pile, and the outer surface, close to the supporting side, of the supporting sheet pile is of a polygonal corner angle structure to form a plurality of resistance faces matched with soil at the supporting position. The cross section of the supporting sheet pile is of the U-shaped structure, and the surface, making contact with the soil body, of the supporting sheet pile is designed to be of the polygonal corner angle structure, so that friction force can be increased, and sliding protection can be effectively conducted on the soil body making contact with the outer surface of the supporting sheet pile.

Description

Technical Field

[0001] The utility model relates to the technical field of river protection structures, in particular to a prefabricated sheet pile. Background Art

[0002] The current centrifugal sheet piles or wave piles use a large amount of concrete materials, and the piles have end plates at both ends, which are costly, and the pile head and end plates are prone to rust, with poor anti-corrosion performance, high subsequent maintenance costs, and poor durability of the sheet piles. In addition, the outer surface of the traditional sheet pile is an arc structure, which is insufficient to prevent the soil from sliding. Utility Model Content

[0003] Technical purpose: In view of the shortcomings of the above-mentioned existing river protection sheet piles, the utility model discloses a prefabricated sheet pile.

[0004] Technical solution: To achieve the above technical objectives, the utility model adopts the following technical solution:

[0005] A prefabricated sheet pile comprises a supporting sheet pile, wherein the cross section of the supporting sheet pile is a U-shaped structure, and concave and convex openings are arranged at both ends for docking when forming a supporting structure. A plurality of prestressed steel bars are arranged longitudinally in the supporting sheet pile, and the ends of the prestressed steel bars are connected to the steel bar sleeve nuts arranged at the ends of the supporting sheet pile. The outer surface of the supporting sheet pile close to the supporting side is a polygonal angular structure, forming a plurality of resistance surfaces that cooperate with the soil at the supporting location.

[0006] Preferably, the polygonal angular structure of the present invention is symmetrically arranged about the center of the supporting sheet pile.

[0007] Preferably, the upper end of the supporting sheet pile is detachably provided with a steel sealing plate, the shape of the steel sealing plate matches the shape of the end face of the supporting sheet pile, and outer clamping plates and inner clamping plates matching the surface of the supporting sheet pile are arranged on both sides of the steel sealing plate, and the outer clamping plates match the angular structure of all or part of the edge of the supporting sheet pile; the outer clamping plates and the inner clamping plates are limited by pins passed through the supporting sheet pile, and the supporting sheet pile is provided with pin through holes matching the pins.

[0008] Preferably, the plug of the present invention is a conical structure, and the diameter of the plug gradually decreases along the insertion direction of the plug.

[0009] Preferably, the utility model provides a spring hook for fixing the bolt at the end of the bolt, a fixing nut is welded on the outer clamping plate, and the spring hook cooperates with the fixing nut to fix the bolt.

[0010] Preferably, the prefabricated sheet piles of the utility model also include connecting sheet piles for connecting adjacent supporting sheet piles to form a continuous supporting structure when the supporting sheet piles are arranged at intervals, and the connecting sheet piles include flat sheet piles and right-angle sheet piles, and steel sealing plates with matching end face shapes are also arranged at the upper ends of the flat sheet piles and the right-angle sheet piles, and the fixing method of the steel sealing plates on the flat sheet piles and the right-angle sheet piles is consistent with the fixing method on the supporting sheet piles.

[0011] Preferably, the cross-section of the supporting sheet pile of the present invention is smaller than the semicircular width.

[0012] The utility model discloses a method for using the prefabricated sheet piles as described above. After the production of the supporting sheet piles is completed, a steel sealing plate is installed at the end of the supporting sheet piles to protect them during the installation of the supporting sheet piles. The arrangement of the supporting sheet piles is designed according to the edge profile structure of the river channel to be protected, and piling construction is carried out to install the supporting sheet piles. After the installation of the supporting sheet piles is completed, the steel sealing plate is removed for recycling and reuse.

[0013] Preferably, the arrangement of the support sheet piles of the utility model is set according to the support bearing capacity requirements, and two methods of intermittent arrangement or continuous arrangement are selected. When arranged continuously, the concave and convex openings at the ends of the support sheet piles cooperate with each other to form a continuous support structure, and the outer surface of the support sheet piles cooperates with the soil at the edge of the river channel, and the slippage of the soil is prevented through the polygonal angular structure.

[0014] Preferably, after the steel sealing plate is disassembled, the utility model brushes protective glue on the end of the steel bar sleeve nut of the supporting sheet pile for protection.

[0015] Beneficial effects: The prefabricated sheet pile provided by the utility model has the following beneficial effects:

[0016] The surface of the supporting sheet pile in contact with the soil is designed to be a polygonal angular structure, which can increase the friction force and enable the outer surface of the supporting sheet pile to effectively protect the soil in contact with it from sliding.

[0017] 2. The cross section of the supporting sheet pile of the utility model is a U-shaped structure with a width smaller than a semicircle (50-60mm away from the center of the circle), which reduces the height of the supporting sheet pile. The reduced concrete material is added to the concave openings on both sides, thereby increasing the width of the supporting pile and relatively reducing the cost of the support project.

[0018] 2. The support sheet piles of the utility model are provided with concave and convex openings at the left and right ends, which can be connected to form a continuous support structure, or can be arranged at intervals, and can be flexibly adjusted according to the requirements of protection capacity. When the bearing capacity of the slope protection support is not high, the support sheet piles can be arranged at intervals to reduce material costs and project costs.

[0019] 3. The utility model arranges a steel sealing plate at the end of the supporting sheet pile, which can protect the pile head concrete of the supporting sheet pile from being bumped during transportation, lifting and construction, and can be flexibly disassembled and reused to reduce costs.

[0020] 4. The rivet head at the end of the prestressed steel bar of the utility model is connected with the countersunk hole in the steel bar sleeve nut, so that the prestressing operation can be smoothly realized in production. After the concrete is cured, the steel bar sleeve nut is naturally solidified and fixed in the concrete at the pile end; and after the support sheet pile is installed, the surface of the steel bar sleeve nut end is cleaned and coated with protective glue to prevent the steel bar sleeve nut from rusting and water seepage.

[0021] 5. The plug of the utility model adopts a conical structure, which is convenient for rapid plugging and unplugging, improving construction efficiency. It is connected with the fixing nut welded on the outer clamping plate through a spring hook, and can be quickly hooked or unhooked manually. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0023] Figure 1 This is the front view of the supporting sheet pile of the utility model;

[0024] Figure 2 This is a top view of the supporting sheet pile of the utility model;

[0025] Figure 3 For this utility model Figure 1 A partial enlarged view of the A area where the prestressed steel bar and the steel bar sleeve nut cooperate;

[0026] Figure 4 This is a schematic diagram of the cooperation between the steel sealing plate and the end of the supporting sheet pile of the utility model;

[0027] Figure 5 This is a structural diagram of the latch of the utility model;

[0028] Figure 6 This is a schematic diagram of the spacing of the support sheet piles of the utility model;

[0029] Figure 7 This is a schematic diagram of the continuous arrangement of the support sheet piles of the utility model;

[0030] Figure 8 This is a schematic diagram of the installation of supporting sheet piles at the corner of the river channel according to the utility model;

[0031] Among them, 1-support sheet pile, 2-concave and convex opening, 3-prestressed steel bar, 4-steel sleeve nut, 5-steel sealing plate, 6-external clamping plate, 7-inner clamping plate, 8-pin through hole, 9-pin, 10-spring hook, 11-fixing nut, 12-flat pile, 13-right angle sheet pile. DETAILED DESCRIPTION

[0032] Reference will now be made in detail to embodiments of the present disclosure, one or more examples of which are set forth herein below. Each embodiment and example is provided by explaining the apparatus, composition and materials of the present disclosure, rather than limiting. On the contrary, the following description provides a convenient illustration of an exemplary embodiment for implementing the present disclosure. In fact, it will be clear to those skilled in the art that various modifications and variations can be made in the teachings of the present disclosure without departing from the scope or spirit of the present disclosure. For example, a feature shown or described as a part of an embodiment can be used in conjunction with another embodiment to produce yet another embodiment. It is expected that the present disclosure covers such modifications and variations within the scope of the appended claims and their equivalents. Other objects, features and aspects of the present disclosure are disclosed in or clear from the following detailed description. It will be understood by those of ordinary skill in the art that this discussion is only a description of exemplary embodiments and is not intended to limit the wider aspects of the present disclosure.

[0033] like Figure 1-Figure 8 As shown, the utility model discloses a prefabricated sheet pile, including a supporting sheet pile 1, the cross-section of the supporting sheet pile 1 is a U-shaped structure, preferably a structure with a cross-section smaller than a semicircular width, the center of the supporting sheet pile is 50-60mm away from the center of the corresponding semicircular width, which can reduce the space occupied by the supporting sheet pile and save materials; concave and convex openings 2 are provided at both ends of the supporting sheet pile 1 for docking when forming a supporting structure, a plurality of prestressed steel bars 3 are arranged longitudinally in the supporting sheet pile 1, the ends of the prestressed steel bars 3 are connected to the steel bar sleeve nuts 4 arranged at the ends of the supporting sheet pile 1, and the outer surface of the supporting sheet pile 1 close to the supporting side is a polygonal angular structure, forming a plurality of resistance surfaces matching the soil at the supporting location.

[0034] In a specific embodiment, in order to ensure uniform stress on the river channel soil, the polygonal angular structure of the utility model is symmetrically arranged about the center of the support sheet pile 1, and a hexagonal structure is preferably adopted, which can not only ensure sufficient resistance but also disperse the stress on a single surface. The concave and convex openings 2 are arranged in a manner that one end is a convex opening and the other end is a concave opening, which is convenient for batch manufacturing using the same mold, and when the support sheet piles 1 need to be arranged continuously, the ends of adjacent support sheet piles 1 can be connected in sequence through the openings.

[0035] The upper end of the supporting sheet pile 1 of the utility model is detachably provided with a steel sealing plate 5, the shape of the steel sealing plate 5 matches the end face shape of the supporting sheet pile 1, and an outer card plate 6 and an inner card plate 7 matching the surface of the supporting sheet pile 1 are arranged on both sides of the steel sealing plate 5, and the outer card plate 6 matches the angular structure of all or part of the edge of the supporting sheet pile 1; the outer card plate 6 and the inner card plate 7 are limited by a pin inserted through the supporting sheet pile 1, and the supporting sheet pile 1 is provided with a pin through hole 8 matching the pin; the outer card plate 6 only needs to have an angular structure matching the partial profile line of the outer surface of the supporting sheet pile 1 to play the role of limiting the steel sealing plate 5 in the left and right directions as shown in the figure, so as to ensure the stability of the position of the steel sealing plate 5 at the end of the supporting sheet pile 1, and effectively protect the concrete at the end of the supporting sheet pile 1 during transportation, lifting and construction to prevent bumps.

[0036] The plug of the utility model is a 9-conical structure. Along the insertion direction of the plug 9, the diameter of the plug 9 gradually decreases. The end of the plug 9 is provided with a spring hook 10 for fixing the plug. A fixing nut 11 is welded on the outer clamping plate 6. The spring hook 10 cooperates with the fixing nut 11 to fix the plug 9. The plug with a conical design can be quickly disassembled and assembled to improve efficiency. When fixed by the plug, the spring hook 10 is used to hook the nut hole of the fixing nut 11, thereby preventing the plug from falling off and ensuring the stability of the assembly structure connection.

[0037] The prefabricated sheet piles of the utility model also include connecting sheet piles for connecting adjacent supporting sheet piles 1 to form a continuous supporting structure when the supporting sheet piles 1 are arranged at intervals. The connecting sheet piles include flat sheet piles 12 and right-angle sheet piles 13. Steel sealing plates 5 with matching end face shapes are also arranged at the upper ends of the flat sheet piles 12 and the right-angle sheet piles 13. The fixing method of the steel sealing plates 5 on the flat sheet piles 12 and the right-angle sheet piles 13 is consistent with the fixing method on the supporting sheet piles 1. The corresponding sheet pile structure is also protected, the pile heads of the sheet piles are protected, and quick disassembly and assembly and reuse are also convenient.

[0038] The utility model also discloses a method for using the prefabricated sheet piles as described above. After the production of the supporting sheet piles is completed, a steel sealing plate is installed at the end of the supporting sheet piles for protection during the installation of the supporting sheet piles. The arrangement of the supporting sheet piles is designed according to the edge profile structure of the river channel to be protected, and piling construction is performed to install the supporting sheet piles. After the installation of the supporting sheet piles is completed, the steel sealing plate is removed for recycling and reuse. After the steel sealing plate is removed, protective glue is brushed on the end of the steel sleeve nut of the supporting sheet pile for protection.

[0039] The arrangement of the supporting sheet piles of the utility model is set according to the support bearing capacity requirements, and two methods of interval arrangement or continuous arrangement are selected, such as Figure 5-Figure 7As shown, when arranged continuously, the concave and convex openings at the ends of the supporting sheet piles cooperate with each other to form a continuous supporting structure, and the outer surface of the supporting sheet piles cooperates with the soil at the edge of the river channel, and the slippage of the soil is prevented by the polygonal angular structure; when arranged at intervals, adjacent supporting sheet piles 1 are connected by flat piles 12, and right-angle sheet piles 13 or other sheet pile structures matching the corner angles can be set at the corners to connect the supporting sheet piles, and the flat piles 12 and the right-angle sheet piles 13 are also provided with connecting openings matching the concave and convex openings at the connection.

Claims

1. A prefabricated sheet pile, characterized in that: The invention comprises a support sheet pile (1), wherein the cross section of the support sheet pile (1) is a U-shaped structure, and concave and convex openings (2) are arranged at both ends for butting when forming a support structure, and a plurality of prestressed steel bars (3) are arranged in the longitudinal direction inside the support sheet pile (1), and the ends of the prestressed steel bars (3) are connected to steel bar sleeve nuts (4) arranged at the ends of the support sheet pile (1), and the outer surface of the support sheet pile (1) close to the supporting side is a polygonal angular structure, forming a plurality of resistance surfaces that match the soil at the supporting location.

2. A prefabricated sheet pile according to claim 1, characterized in that: The polygonal angular structure is arranged symmetrically about the center of the supporting sheet pile (1).

3. The prefabricated sheet pile according to claim 1, characterized in that: The upper end of the supporting sheet pile (1) is detachably provided with a steel sealing plate (5), the shape of the steel sealing plate (5) matches the shape of the end face of the supporting sheet pile (1), and an outer clamping plate (6) and an inner clamping plate (7) matching the surface of the supporting sheet pile (1) are provided on both sides of the steel sealing plate (5), and the outer clamping plate (6) matches the angular structure of all or part of the edge of the supporting sheet pile (1); the outer clamping plate (6) and the inner clamping plate (7) are limited by a latch (9) penetrated on the supporting sheet pile (1), and the supporting sheet pile (1) is provided with a latch through hole (8) matching the latch (9).

4. A prefabricated sheet pile according to claim 3, characterized in that: The plug pin (9) is of a conical structure, and the diameter of the plug pin (9) gradually decreases along the insertion direction of the plug pin (9).

5. The prefabricated sheet pile according to claim 4, characterized in that: A spring hook (10) for fixing the latch pin is arranged at the end of the latch pin (9), a fixing nut (11) is welded to the outer clamping plate (6), and the spring hook (10) cooperates with the fixing nut (11) to fix the latch pin (9).

6. The prefabricated sheet pile according to claim 3, characterized in that: The prefabricated sheet piles also include connecting sheet piles for connecting adjacent supporting sheet piles (1) to form a continuous supporting structure when the supporting sheet piles (1) are arranged at intervals. The connecting sheet piles include flat sheet piles (12) and right-angle sheet piles (13). Steel sealing plates (5) having matching end surface shapes are also arranged at the upper ends of the flat sheet piles (12) and the right-angle sheet piles (13). The fixing method of the steel sealing plate (5) on the flat sheet piles (12) and the right-angle sheet piles (13) is consistent with the fixing method on the supporting sheet piles (1).

7. The prefabricated sheet pile according to claim 1, characterized in that: The cross section of the supporting sheet pile (1) is smaller than a semicircular width.

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