Photovoltaic project pile foundation stabilizing structure under moving dune condition

Abstract

The utility model discloses a photovoltaic project pile foundation stabilizing structure under a moving dune condition in the technical field of cast-in-situ bored piles, and the photovoltaic project pile foundation stabilizing structure comprises a pile body, a plurality of semicircular guide pipes are symmetrically connected to a web plate of the pile body, fine holes are formed in the semicircular guide pipes, and the bottom ends of the semicircular guide pipes are conical. The structure effectively enhances the stability of the pile body, improves the pulling resistance, the anti-overturning performance and the durability, prevents sand loss, reduces the influence of sand dune movement on the pile foundation, improves the construction efficiency, is suitable for photovoltaic power generation projects with poor geological conditions such as movable sand dunes, can effectively improve the stability and the durability of the pile foundation, and is suitable for popularization and application. And safe and stable operation of the photovoltaic power generation system is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bored pile, specifically relates to a photovoltaic project pile foundation stable structure under mobile sand dune condition. BACKGROUND

[0002] The photovoltaic project is applied in desert and desert region on a large scale, and the sand moves under the action of wind, and the stability problem of the photovoltaic project pile foundation under the mobile sand dune condition has been an important challenge in the photovoltaic power generation field. As a kind of special geological environment, the sand soil mobility of mobile sand dune is big, and the wind erosion is strong, which causes great threat to the stability and durability of pile foundation. The existing photovoltaic project pile foundation design is mainly aimed at conventional geological conditions, and it is difficult to adapt to the special environment of mobile sand dune, so that the pile foundation is prone to sand erosion, overturning and other problems, which seriously affects the reliability and safety of photovoltaic power generation system. UTILITY MODEL CONTENT

[0003] The utility model is intended to provide a photovoltaic project pile foundation stable structure under mobile sand dune condition to solve the problem that the existing photovoltaic pile foundation is not applicable to mobile sand dune geological conditions.

[0004] To solve the above technical problems, the utility model provides the following technical scheme: a photovoltaic project pile foundation stable structure under mobile sand dune condition, including pile body, the web of pile body is connected with multiple semicircle pipes symmetrically, the semicircle pipe is equipped with fine hole, and the bottom end of semicircle pipe is conical.

[0005] The utility model working principle: when using, the pile body and semicircle pipe welded together are driven into design elevation, K31 mixed agent is injected into pipe, the amount of injection is determined according to design wind speed and pile foundation calculation, after injection, K31 mixed agent is sprayed on the surface of pile, and the spraying is stopped when checking that the infiltration is about 50mm.

[0006] The utility model discloses a beneficial effect: 1. The utility model discloses a plurality of semicircle conduit is connected on the web of pile body symmetry, and the fine hole is set up on the conduit, makes K31 mixed agent can evenly and effectively spread to the ground, forms the consolidation layer of stability. This design greatly improves the stability of pile foundation under the special geological conditions of mobile dune, effectively resists the erosion and overturning risk of sand flow and wind erosion effect; 2. The stable structure passes through simple design and operation flow, such as the pile body and semicircle conduit together are hit into the design elevation of welding together, injects K31 mixed agent and sprays around the pile, greatly simplifies the construction step, improves the construction efficiency. Meanwhile, through scientific calculation injection quantity and spray radius, ensures the construction quality and effect; 3. The stable structure design is reasonable, and the adaptability is strong, not only is applicable to the photovoltaic project under the mobile dune condition, can also be deformed and improved according to actual demand to adapt to other special geological conditions. Meanwhile, its easy operation, low cost characteristics also make it easy to be widely popularized and applied in photovoltaic power generation field.

[0007] Further, the three fine holes are arranged on the semicircle conduit. By determining the number of fine holes, K31 mixed agent can be evenly spread to the ground.

[0008] Further, the diameter of the fine hole is 2-3mm. By determining the diameter of the fine hole, K31 mixed agent can penetrate into the ground before fixation.

[0009] Further, the interlayer spacing of the fine hole is 100-200mm. By setting the interlayer spacing of the fine hole, K31 mixed agent can be diffused in the maximum range.

[0010] Further, the height of the cone at the bottom end of the semicircle conduit is 100-200mm. By setting the height of the cone, it is helpful to the overall driving of the pile body into the ground.

[0011] Further, the angle of the cone at the bottom end of the semicircle conduit is 15-30°. By setting the angle of the cone, the pile body can be more conveniently driven into the ground, and the conduit is protected from being filled with sand particles during driving, which helps K31 mixed agent to penetrate.

[0012] Further, the semicircle conduit is made of hot-dipped galvanized steel pipe material. The semicircle conduit made of hot-dipped galvanized steel pipe material has excellent corrosion resistance and anti-aging performance, can maintain the integrity and stability of the structure for a long time in harsh desert environment, thereby prolonging the service life of the pile foundation and reducing the cost of later maintenance and replacement.

[0013] Further, the pile body is made of H-shaped steel.

[0014] Furthermore, the spray radius at the top of the pile is 1-1.5m. By setting the top spray radius, after the pile foundation construction is completed, a spray radius of 1m around the pile will be effectively maintained. ～ Spraying K31 mixture within a 1.5-meter range can form a solidified layer. Attached Figure Description

[0015] Figure 1 This is an isometric view of a photovoltaic project pile foundation stabilization structure under moving sand dune conditions according to this utility model;

[0016] Figure 2 This is a front view of a photovoltaic project pile foundation stabilization structure under moving sand dune conditions according to this utility model. Detailed Implementation

[0017] The following detailed description illustrates the specific implementation method:

[0018] The reference numerals in the accompanying drawings include: H-beam 1, semi-circular conduit 2, fine hole 3, and consolidation layer 4.

[0019] The basic implementation examples are as follows: Figure 1 -Appendix Figure 2 As shown: A stable pile foundation structure for a photovoltaic project under moving sand dune conditions, including a pile body made of HH-shaped steel 1. The top of the pile body is sprayed with a radius of 1-1.5m, forming a consolidation layer 4 after spraying. Two semi-circular guide tubes 2 are vertically and symmetrically fixedly connected in the middle of the pile body. The semi-circular guide tubes 2 are made of hot-dip galvanized steel pipe material. Each semi-circular guide tube 2 is provided with fine holes 3. Three fine holes 3 are arranged in a row on the semi-circular guide tube 2. The diameter of the fine holes 3 is 2mm, the interlayer spacing of the fine holes 3 is 150mm, and the bottom end of the semi-circular guide tube 2 is conical with an angle of 20° and a height of 150mm.

[0020] The specific implementation process is as follows: When in use, the HH-shaped steel 1 welded together and the semi-circular conduit 2 with a specific structure are driven into the design elevation. K31 mixture is injected into the conduit. The amount injected is determined according to the design wind speed and pile foundation calculation. After the injection is completed, K31 mixture is sprayed on the surface around the pile. The spraying is stopped when the seepage is about 50mm.

[0021] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A photovoltaic project pile foundation stabilizing structure in a mobile dune condition, comprising a pile body, characterized in that: The web of the pile body is symmetrically connected with a plurality of semicircular conduits, and the semicircular conduits are each provided with a fine hole.

2. A photovoltaic project pile foundation stabilizing structure in a mobile dune condition according to claim 1, characterized in that: The three fine holes form an array on the semicircular conduit.

3. A mobile dune conditions photovoltaic project pile foundation stabilizing structure according to claim 2, characterized in that: The diameter of the fine hole is 2-3 mm.

4. The photovoltaic project pile foundation stabilizing structure in a mobile dune condition according to claim 3, characterized in that: The interlayer distance of the fine hole is 100-200 mm.

5. A mobile dune conditions photovoltaic project pile foundation stabilizing structure according to claim 4, characterized in that: The height of the cone at the bottom end of the semicircular conduit is 100-200 mm.

6. A mobile dune conditions photovoltaic project pile foundation stabilizing structure according to claim 5, characterized in that: The angle of the cone at the bottom end of the semicircular conduit is 15-30°.

7. A mobile dune conditions photovoltaic project pile foundation stabilizing structure according to claim 6, characterized in that: The semicircular conduit is made of hot-dipped galvanized steel pipe material.

8. A mobile dune conditions photovoltaic project pile foundation stabilizing structure according to claim 7, characterized in that: The pile body is made of H-shaped steel.

9. A mobile dune conditions photovoltaic project pile foundation stabilizing structure according to claim 8, characterized in that: The spray radius at the top end of the pile body is 1-1.5 m.

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