Trapezoidal wall protection pile for circular arc corner of river bank protection
By adopting isosceles trapezoidal cross-section and trapezoidal wall guard piles with internal spiral stirrups and prestressed steel bars, the existing square wall guard piles have small contact area and poor aesthetics at the turning points of the river, achieving more efficient soil retaining effect and aesthetic effects.
Patent Information
- Application Number
- CN202421979412.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-15
AI Technical Summary
The existing square cross-section wall guard piles have a small contact area at the turn of the river, which leads to soil after the water flow brushing the pile, which is prone to soil erosion and poor aesthetics.
A trapezoidal wall guard pile with isosceles trapezoidal cross-section is adopted, the center of the pile body is hollow of the cylinder, steel end plates are installed at both ends, spiral stirrups and prestressed steel bars are installed, and sealing grooves are installed on the facade to seal water stop or form a reverse filter body.
It effectively improves the contact area and aesthetics of wall protection piles, enhances soil retention capacity, reduces the occurrence of soil erosion, and improves the reliability of river protection support.
Smart Images
Figure CN223017543U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water conservancy projects, and particularly relates to a trapezoidal retaining wall pile for the circular arc corner of a river channel revetment. Background Art
[0002] With the development of prefabrication and assembly technology in the engineering field, precast pile row support technology is increasingly used in projects such as municipal engineering and water conservancy projects. The precast pile types commonly used in pile row support projects include retaining wall piles, sheet piles, etc.
[0003] At present, the outer contour of the cross-section of the retaining wall pile applied in the project is a square with four equal side lengths, which is widely used in straight river channel revetment projects. At the turning point (concave bank or convex bank) of the river channel, in order to form the required turning arc on the outer facade, only one side of the square cross-section retaining wall pile can be closely attached to the adjacent retaining wall pile, and the contact surface between two adjacent retaining wall piles is extremely small. At the convex bank position of the turning point, an opening facing the center line of the river channel will inevitably be formed, and the visual effect is extremely poor. The too small contact area is not conducive to forming an effective soil retaining structure, and it is easy to occur the situation that the soil body behind the pile is scoured by the water flow, and soil and water loss is likely to occur. Summary of the Utility Model
[0004] To solve the above problems, the utility model provides the following technical solutions:
[0005] A trapezoidal retaining wall pile for the circular arc corner of a river channel revetment includes a retaining wall pile body and two steel end plates. The two steel end plates are installed at both ends of the retaining wall pile body. Steel end plates are installed at both ends of the concrete pile body. The material of the steel end plate is Q235 steel. The retaining wall pile body is a column with an isosceles trapezoidal cross-section. The center of the retaining wall pile body is hollow in the shape of a cylinder. The strength of the concrete pile body is not less than C80. A number of spiral stirrups are distributed along the length direction of the retaining wall pile body. Prestressed steel bars and non-prestressed steel bars are arranged inside a number of spiral stirrups. The two sides of the retaining wall pile body are outer facades. Sealing grooves are arranged on the outer facades. One end of the retaining wall pile body is the soil-facing surface, and the other end is the air-facing surface.
[0006] Preferably: The outer facade of one retaining wall pile body is connected to the outer facade of another retaining wall pile body, and multiple trapezoidal retaining wall piles are spliced into a complete trapezoidal retaining wall pile for protecting the river channel revetment.
[0007] Preferably: The retaining wall pile body is composed of concrete. A number of spiral stirrups are arranged inside the concrete. The distance between the spiral stirrups distributed at both ends of the concrete is 40 mm - 50 mm, and the distance between the spiral stirrups distributed in the middle of the concrete is 75 mm - 85 mm.
[0008] Preferably, the spiral stirrup is in a trapezoidal spiral shape inside the concrete. There are several prestressed steel bars and four non-prestressed steel bars arranged inside the spiral stirrup. The prestressed steel bars are evenly distributed inside the spiral stirrup. Two non-prestressed steel bars are arranged on one side of the spiral stirrup, and two non-prestressed steel bars are arranged on the other side.
[0009] Preferably, the sealing groove of one retaining wall pile body is connected to the sealing groove of another retaining wall pile body to form a cylindrical groove, and the groove is filled with cement mortar to achieve airtight water stop; alternatively, geotextile bags can be lowered into the groove and filled with sand and gravel to form a filter body.
[0010] Compared with the prior art, the present utility model has the following beneficial effects:
[0011] The trapezoidal retaining wall pile is simple to manufacture, effectively avoiding problems such as small contact surface and poor aesthetics generated when the existing retaining wall piles are applied to the turning points of river bank protection projects, effectively improving the reliability and aesthetics of the retaining wall piles used in the water conservancy river support scenarios. The trapezoidal retaining wall pile is used in conjunction with the clamping device. The clamping device has a simple structure, is easy to repair, has high efficiency and saves manpower. Description of the Drawings
[0012] Figure 1 It is a schematic diagram of a trapezoidal retaining wall pile for the arc corner of a river bank protection;
[0013] Figure 2 is Figure 1 the cross-sectional view in the A-A direction of
[0014] Figure 3 It is a three-dimensional splicing schematic diagram of multiple trapezoidal retaining wall piles for the arc corners of river bank protection;
[0015] Figure 4 It is the top view of Embodiment 1 of the present utility model;
[0016] Figure 5 It is the top view of Embodiment 2 of the present utility model.
[0017] Annotation of the reference numerals in the drawings: 1, retaining wall pile body; 2, soil-facing surface; 3, prestressed steel bar; 4, non-prestressed steel bar; 5, spiral stirrup; 6, outer facade; 7, sealing groove; 8, air-facing surface; 9, steel end plate. Detailed Embodiments
[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0019] As Figure 1-2 shown, a trapezoidal retaining wall pile for the circular arc corner of a riverbank revetment, where the two steel end plates 9 are installed at both ends of the retaining wall pile body 1. The retaining wall pile body 1 is a column with an isosceles trapezoidal cross-section, and the center of the retaining wall pile body 1 is hollow in the shape of a cylinder. A number of spiral stirrups 5 are distributed along the length direction of the retaining wall pile body 1. Inside the number of spiral stirrups 5, prestressed steel bars 3 and non-prestressed steel bars 4 are arranged. The prestressed steel bars 3 are connected to the steel end plates 9 at both ends. The two sides of the retaining wall pile body 1 are outer surfaces 6, and sealing grooves 7 are arranged on the outer surfaces 6. The sealing groove 7 of one retaining wall pile body 1 is connected to the sealing groove 7 of another retaining wall pile body 1 to form a cylindrical groove, and the groove is filled with cement mortar to achieve airtight water stop; alternatively, geotextile bags can be lowered into the groove and filled with sand and gravel to form a filter body.
[0020] As Figure 3 shown, after multiple trapezoidal retaining wall piles are assembled three-dimensionally, an integral riverbank retaining wall pile for protecting the circular arc corner is formed. The air-facing surface 2 is the contact surface with the river water of the river, and the soil-facing surface 8 is the contact surface with the riverbank slope.
[0021] As Figure 4 shown in Embodiment 1, which is applicable to the concave circular arc riverbank. According to the turning angle of the circular arc river channel, trapezoidal retaining wall piles with different angles of 6°, 10°, and 15° between the two sides are used; as Figure 5 shown in Embodiment 2, which is applicable to the convex circular arc riverbank. According to the turning angle of the circular arc river channel, trapezoidal retaining wall piles with different angles of 6°, 10°, and 15° between the two sides are used, so that the applicability of the trapezoidal retaining wall piles is more extensive.
[0022] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.
[0023] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection, an electrical connection, or a communication connection; it may be a direct connection, or an indirect connection through an intermediate medium, and may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model may be understood according to specific circumstances.
[0024] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A trapezoidal retaining wall pile for use in a river bank protection arc corner, comprising a retaining wall pile body (1) and two steel end plates (9), wherein the two steel end plates (9) are mounted at both ends of the retaining wall pile body (1), characterized in that: The wall protection pile body (1) is a column with an isosceles trapezoidal cross section. The center of the wall protection pile body (1) is a hollow cylinder. A plurality of spiral stirrups (5) are distributed along the length direction of the wall protection pile body (1). Prestressed steel bars (3) and non-prestressed steel bars (4) are arranged inside the plurality of spiral stirrups (5). The prestressed steel bars (3) are connected to steel end plates (9) at both ends. Both sides of the wall protection pile body (1) are exterior facades (6). A sealing groove (7) is arranged on the exterior facades (6). One end of the wall protection pile body (1) is a soil-facing surface (2), and the other end is an air-facing surface (8).
2. The trapezoidal retaining wall pile for the arc corner of river bank protection according to claim 1, characterized in that: The outer facade (6) of one wall protection pile body (1) is connected to the outer facade (6) of another wall protection pile body (1).
3. The trapezoidal retaining wall pile for the arc corner of river bank protection according to claim 1, characterized in that: The pile body (1) of the retaining wall pile is composed of concrete, in which a plurality of spiral stirrups (5) are arranged, wherein the distance between the spiral stirrups (5) distributed at both ends of the concrete is 40 mm-50 mm, and the distance between the spiral stirrups (5) distributed in the middle of the concrete is 75 mm-85 mm.
4. The trapezoidal retaining wall pile for the arc corner of river bank protection according to claim 1, characterized in that: The spiral stirrup (5) is in a trapezoidal spiral in the concrete, a plurality of prestressed steel bars (3) and four non-prestressed steel bars (4) are arranged inside the spiral stirrup (5), the prestressed steel bars (3) are distributed at equal intervals inside the spiral stirrup (5), two non-prestressed steel bars (4) are arranged on one side of the spiral stirrup (5), and two non-prestressed steel bars (4) are arranged on the other side.
5. The trapezoidal retaining wall pile for the arc corner of river bank protection according to claim 1, characterized in that: The sealing groove (7) of one wall protection pile body (1) is connected to the sealing groove (7) of another wall protection pile body (1) to form a cylindrical groove.