Self-impact type heliostat prestressed pipe pile
By welding the pointed pile tips at the lower end of the concrete pipe pile of the heliostat column, and directly implanted into the ground by hammering or static pressure, the cracking and damage, long construction period and winter in the existing heliostat column construction methods are solved. The problem of construction difficulties has achieved efficient and low-cost construction.
Patent Information
- Application Number
- CN202421274817.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-06-05
AI Technical Summary
The existing heliostat column construction methods have problems such as rupture and damage, long construction cycle and difficulty in winter, resulting in slow construction speed and high cost.
Self-impact heliostat prestressed pipe piles are used to weld the pointed pile tips at the lower end of the concrete pipe piles and implant them directly into the ground using hammer or static pressure, eliminating the steps of pre-hole formation and pouring concrete.
It improves construction speed, reduces cost investment, shortens construction cycle, and is not subject to winter construction, which significantly improves construction efficiency.
Smart Images
Figure CN222477433U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heliostats, in particular to a self-impact heliostat prestressed pipe pile. Background Art
[0002] As a clean, renewable new energy, solar energy is increasingly widely used in production and life. With the rapid development of my country's solar thermal industry, the tower-type concentrating solar collector technology system has been increasingly widely used in the market due to its high thermal efficiency and good grid peak regulation capability. It has clean and green attributes, as well as a wide range of active and reactive power regulation and inertia support capabilities.
[0003] In the tower solar concentrator system, heliostat is a solar radiation energy collection device used to track the sun and project sunlight to a fixed position. The heliostat is installed on the column through a rotary reducer and a support structure frame, and then fixed to the base on the ground through the column. Due to the large number of heliostats, it is necessary to increase the speed of heliostat column foundation construction and reduce the cost investment.
[0004] The heliostat columns in the prior art are prestressed concrete pipe piles with piles and columns integrated into one. There are usually two construction methods:
[0005] 1. Hammer or static pressure construction uses machinery to hammer / press the pipe piles into the ground. When the soil of the project is hard and has a high bearing capacity, it is easy to cause the pipe piles to break and be damaged.
[0006] 2. Pre-dig holes, plant piles, and then pour secondary grouting material to fix the pipe piles. After 28 days of curing, subsequent installation and construction work can be carried out. This operation has high requirements, a long construction period, and many difficulties in winter. Utility Model Content
[0007] In view of the deficiencies in the above-mentioned prior art, the utility model provides a self-impact heliostat prestressed pipe pile, which has a pointed pile tip welded to the concrete pipe pile head and is directly implanted into the ground by hammering or static pressure, which is convenient and fast, has high construction speed and low cost.
[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0009] A self-impact heliostat prestressed pipe pile, comprising a pile body, an upper end plate, a lower end plate, and a pile tip; the upper end plate and the lower end plate are respectively installed at the upper and lower ends of the pile body; the pile body is a hollow concrete pipe pile; the lower end of the lower end plate is coaxially connected to the pile tip; the pile tip is a closed-end pointed metal pile tip, and the lower end sharp angle of the pile tip is 5° to 30°.
[0010] Furthermore, the pile tip is a hollow part.
[0011] Furthermore, the lower end surface of the lower end plate is coaxially welded to the pile tip.
[0012] Furthermore, the pile tip comprises an upper pile tip and a lower pile tip; the upper pile tip is coaxially welded to the lower end of the lower end plate, and the lower pile tip is coaxially welded to the lower end of the upper pile tip; the lower end tip of the lower pile tip is a solid tip.
[0013] Furthermore, the angle a of the lower end of the upper pile tip is 15° to 30°, and the angle b of the lower end of the lower pile tip is 5° to 20°; the difference between the lower end angles of the upper pile tip and the lower pile tip does not exceed 15°.
[0014] Furthermore, the pile tip is formed by rolling a metal plate.
[0015] Furthermore, the prestressed pipe pile also includes an annular embedded part; the annular embedded part is embedded in the concrete in the pile body and fixed; the annular embedded part is welded to the upper end plate.
[0016] Furthermore, a groove is provided at the edge of the lower end surface of the upper end plate; the top end of the annular embedded part is placed in the groove, closely fits with the upper end plate, and is welded together.
[0017] Furthermore, a plurality of prestressed steel bars are arranged around the pile body, and the upper end plate and the lower end plate are respectively tied and fixed to the upper and lower ends of the prestressed steel bars.
[0018] Beneficial effects of the utility model:
[0019] The utility model provides a closed pointed metal pile tip at the lower end of the concrete pipe pile, and the prestressed pipe pile can be easily implanted into the ground to a predetermined depth by hammering or static pressure method without pre-drilling holes, thereby reducing damage to the prestressed pipe pile, eliminating the construction steps of pre-drilling holes and pouring concrete grouting materials, saving the maintenance period, reducing cost investment, greatly shortening the construction period, and not being restricted by winter construction.
[0020] The pile tip of the utility model is a hollow closed-end pointed metal pile tip, which reduces the weight of the pile tip while ensuring sufficient pile tip strength. In addition, the pile tip composed of an upper pile tip and a lower pile tip can shorten the pile tip height while ensuring the pile tip angle.
[0021] The utility model is provided with an annular embedded part, which can strengthen the supporting strength of the pile body to the annular upper end plate, and ensure the safety of the equipment to be supported. In addition, the groove is provided at the lower end of the annular upper end plate, and the top of the annular embedded part is placed in the groove, which can ensure that the weld between the annular upper end plate and the annular embedded part is tight and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic diagram of the prestressed pipe pile structure of the self-impact heliostat of the utility model;
[0023] Figure 2 This is a detailed view of the upper end of the prestressed pile of the self-impact heliostat of the utility model;
[0024] Figure 3 This is a cross-sectional view of the circular ring-shaped upper end plate of the utility model;
[0025] Figure 4 It is a schematic diagram of the pile tip structure in the utility model.
[0026] Among them: 1-pile body, 2-prestressed steel bar, 3-annular embedded part, 4-circular upper end plate, 4.1-groove, 5-circular lower end plate, 6-pile tip, 6.1-upper pile tip, 6.2-lower pile tip. DETAILED DESCRIPTION
[0027] The following is a further detailed description of the specific implementation of the utility model in conjunction with the accompanying drawings and examples. The following examples are only used to illustrate the utility model, but are not intended to limit the scope of the utility model.
[0028] The terms such as upper, lower, left, right, inside, outside, front end, rear end, head, tail, etc. in this application document are based on the positions or positions shown in the drawings. If the drawings are different, the corresponding positions may also change accordingly, so they cannot be understood as limiting the scope of protection.
[0029] In the present utility model, the terms "install", "connected", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection or mutual communication, a direct connection, an indirect connection through an intermediate medium, the internal connection of two components, or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0030] This embodiment describes a self-impact heliostat prestressed pipe pile, which is simple to construct, can greatly shorten the construction period, and reduce the investment in construction costs.
[0031] like Figure 1 As shown, the pipe pile includes a pile body 1, prestressed steel bars 2, annular embedded parts 3, an annular upper end plate 4, an annular lower end plate 5, and a pile tip 6.
[0032] The pile body 1 is a hollow concrete pipe pile, in which a plurality of prestressed steel bars 2 are evenly arranged to strengthen the strength of the concrete pipe pile. The pile body 1 of this embodiment reduces the use of concrete and reduces the weight of the pipe pile while ensuring the strength of the pipe pile.
[0033] The annular upper end plate 4 is fixed to the top of the pile body 1 by being tied to the prestressed steel bars 2, and is used to be connected to the heliostat or other equipment that needs to be supported.
[0034] To ensure the safety of the equipment to be supported under any working conditions, such as Figure 2 As shown, the circumferential annular embedded part 3 on the upper part of the pile body 1 is embedded in the concrete and fixed, and is used to support the annular upper end plate 4, further strengthening the connection strength between the annular upper end plate 4 and the pile body 1, and ensuring the safety of the equipment to be supported.
[0035] like Figure 3 As shown, the annular upper end plate 4 is a hollow flat plate. To ensure tight and beautiful welding, a groove 4.1 is provided at the lower end edge of the annular upper end plate 4, and the top end of the annular embedded part 3 is placed in the groove 4.1, and after being tightly fitted with the annular upper end plate 4, the two are welded together.
[0036] The annular lower end plate 5 at the lower end of the pile body 1 is tied and fixed to the prestressed steel bar 2, and the lower end surface of the annular lower end plate 5 is coaxially welded to the pile tip 6. Preferably, the pile tip 6 is a closed pointed metal pile tip, and its lower end pointed angle is 5° to 30°.
[0037] The pile tip 6 is a hollow part and can be formed by rolling a metal plate, which reduces the weight of the pile tip 6 while ensuring the hardness of the pile tip 6. Figure 4 As shown, the pile tip 6 of this embodiment can be composed of an upper pile tip 6.1 and a lower pile tip 6.2. The upper pile tip 6.1 is coaxially welded to the lower end of the circular lower end plate 5, and the lower pile tip 6.2 is coaxially welded to the lower end of the upper pile tip 6.1, and the upper pile tip 6.1 is a hollow pile tip, and the lower pile tip 6.2 is a solid tip. The lower end of the lower pile tip 6.2 has a sharp angle b that is smaller than the lower end of the upper pile tip 6.1. The angle difference between the sharp angle a and the sharp angle b does not exceed 15°, which can avoid the step between the upper pile tip 6.1 and the lower pile tip 6.2 from forming a downward resistance of the prestressed pipe pile. Preferably, the sharp angle a is 15° to 30°, and the sharp angle b is 5° to 20°.
[0038] The prestressed pipe pile of this embodiment has a closed-end pointed metal pile tip, so there is no need to pre-drill holes during construction. The prestressed pipe pile can be easily implanted into the ground to a predetermined depth using a hammer or static pressure method, thereby reducing damage to the prestressed pipe pile. At the same time, because the pile body fits closely with the surrounding land, there is no need to pour concrete grouting materials, saving a 28-day maintenance period, reducing the investment in construction costs, greatly saving construction time, and not being restricted by winter construction.
[0039] Although the principle of the present invention is described in detail above in conjunction with the preferred embodiments of the present invention, those skilled in the art should understand that the above embodiments are merely explanations of the exemplary implementation of the present invention, and are not intended to limit the scope of the present invention. The details in the embodiments do not constitute limitations on the scope of the present invention. Without departing from the spirit and scope of the present invention, any obvious changes such as equivalent transformations and simple replacements based on the technical solution of the present invention fall within the scope of protection of the present invention.
Claims
1. A self-impact heliostat prestressed pipe pile, characterized in that: The prestressed pipe pile comprises a pile body (1), an upper end plate, a lower end plate, and a pile tip (6); the upper end plate and the lower end plate are respectively mounted on the upper and lower ends of the pile body (1); the pile body (1) is a hollow concrete pipe pile; the lower end of the lower end plate is coaxially connected to the pile tip (6); the pile tip (6) is a closed-end pointed metal pile tip, and the lower end of the pile tip (6) has a pointed angle of 5° to 30°.
2. The self-impact heliostat prestressed pipe pile according to claim 1, characterized in that: The pile tip (6) is a hollow part.
3. The self-impact heliostat prestressed pipe pile according to claim 1 or 2, characterized in that: The lower end surface of the lower end plate is coaxially welded to the pile tip (6).
4. The self-impact heliostat prestressed pipe pile according to claim 3, characterized in that: The pile tip (6) comprises an upper pile tip (6.1) and a lower pile tip (6.2); the upper pile tip (6.1) is coaxially welded to the lower end of the lower end plate, and the lower pile tip (6.2) is coaxially welded to the lower end of the upper pile tip (6.1); the lower end tip of the lower pile tip (6.2) is a solid tip.
5. The self-impact heliostat prestressed pipe pile according to claim 4, characterized in that: The angle a of the lower end of the upper pile tip (6.1) is 15° to 30°, and the angle b of the lower end of the lower pile tip (6.2) is 5° to 20°; the difference between the lower end angles of the upper pile tip (6.1) and the lower pile tip (6.2) does not exceed 15°.
6. The self-impact heliostat prestressed pipe pile according to claim 2, characterized in that: The pile tip (6) is formed by rolling a metal plate.
7. The self-impact heliostat prestressed pipe pile according to claim 1, characterized in that: The prestressed pipe pile also includes an annular embedded part (3); the annular embedded part (3) is embedded in the concrete inside the pile body (1) and fixed; the annular embedded part (3) is welded to the upper end plate.
8. The self-impact heliostat prestressed pipe pile according to claim 7, characterized in that: The lower end surface edge of the upper end plate is provided with a groove (4.1); the top end of the annular embedded part (3) is placed in the groove (4.1), tightly fitted with the upper end plate, and connected by welding.
9. The self-impact heliostat prestressed pipe pile according to claim 1, characterized in that: A plurality of prestressed steel bars (2) are arranged around the pile body (1), and the upper end plate and the lower end plate are respectively tied and fixed to the upper and lower ends of the prestressed steel bars (2).