Photovoltaic concrete pile foundation sheath

Abstract

The utility model discloses a photovoltaic concrete pile foundation sheath, which belongs to the technical field of pile foundation sheaths and comprises a disc, a metal wire is arranged on the outer surface of the disc, and the disc is sleeved at the middle lower end of a pile foundation cylinder. The protective sleeve is arranged at the lower end of the pile foundation column body in a sleeving mode. The disc is located on the inner side of the protective sleeve, and the protective sleeve is connected with the metal wire of the disc; and a protective layer is wound at the upper end of the disc. The corrosion resistance of the concrete foundation pile can be improved, and the service life and the use safety performance of the concrete foundation pile are guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of pile foundation sheaths, and specifically relates to a photovoltaic concrete pile foundation sheath. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] In recent years, photovoltaic projects have gradually developed in coastal areas, seashores, and saline-alkali beaches. Photovoltaic projects are installed in coastal brine extraction industry pools, but the salt spray environment has serious corrosion on concrete pile foundations, causing concrete pits to be everywhere, aggregates to fall off, and steel bars to be exposed and corroded. The environment in such areas is harsh and can easily cause corrosion to intensify. To avoid this, concrete pile foundation sheaths that can be used for a long time in saline-alkali environments are needed.

[0004] There are currently three main measures for pile foundation corrosion prevention:

[0005] 1. Isolation and anti-corrosion technology uses physical means to isolate the pile body concrete from the external corrosive environment to prevent direct contact between salt or water and concrete. It is divided into three forms according to the isolation and anti-corrosion materials: steel casing isolation, anti-corrosion bag isolation and coating isolation.

[0006] 2. Compacting anti-corrosion technology: adding expansion agents to prevent micro-cracks in the concrete from providing convenient conditions for the migration of moisture and corrosive salts, or adding admixtures such as slag, silica fume and fly ash to increase the density of the concrete and achieve the purpose of resisting salt erosion.

[0007] 3. Steel bar rust prevention technology only protects steel bars by coating them with epoxy resin. It is rarely used because it cannot effectively protect the surface concrete, or is used in less corrosive conditions.

[0008] The existing anti-corrosion technology has problems such as single anti-corrosion structure, complex construction process and unsatisfactory anti-corrosion effect. It is also easily limited by the performance defects of the anti-corrosion materials themselves, such as the anti-corrosion treatment of steel sleeves, degradation and aging of coatings and anti-corrosion bags, etc. Utility Model Content

[0009] In view of the above problems, the utility model provides a photovoltaic concrete pile foundation sheath, which can improve the corrosion resistance of the concrete pile foundation and ensure the service life and safety performance of the concrete pile foundation.

[0010] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0011] A photovoltaic concrete pile foundation sheath comprises a disc, a metal wire is arranged on the outer surface of the disc, the disc is sleeved on the middle and lower end of the pile foundation column; the protective sleeve is sleeved on the lower end of the pile foundation column; the disc is located inside the protective sleeve, and the protective sleeve is connected to the metal wire of the disc; and a protective layer is wound around the upper end of the disc.

[0012] Furthermore, the metal wire of the disc and the protective sleeve are connected by hot melting.

[0013] Furthermore, the disc is made of thermoplastic material.

[0014] Furthermore, the diameter of the disc is greater than the diameter of the pile foundation column.

[0015] Furthermore, the metal wires are wound in an interlaced manner on the outer surface of the disc.

[0016] Furthermore, the protective cover is a hollow structure.

[0017] Furthermore, the upper end of the protective sleeve is cylindrical.

[0018] Furthermore, the lower end of the protective sleeve is tapered.

[0019] Furthermore, the winding angle of the lower end of the protective layer is greater than the winding angle of the upper end.

[0020] Furthermore, the protective layer is wound around the top of the pile foundation column.

[0021] Compared with the prior art, the utility model has the following advantages and positive effects:

[0022] 1. The disc of the utility model can strengthen the connection between the thermoplastic outer layer and the concrete, facilitate the coating and armoring of the outer thermoplastic material, and at the same time, the connected protective cover ensures that it will not fall off during the construction of uniform load vibration. The diameter of the disc and the protective cover connected together is larger than the diameter of the pile foundation column, which effectively provides a buffer space for the protective layer during the construction process to prevent stones and gravel in the soil from damaging the protective layer.

[0023] 2. The metal wire in the disc of the utility model is mainly used to facilitate the hot-melt connection of the protective cover and the protective layer in the later stage, and at the same time, to increase the strength of the disc.

[0024] 3. The utility model isolates the concrete from the salt spray environment through the protective layer, thereby improving the corrosion resistance of the concrete foundation pile. The lower end protective sleeve is beneficial for protecting the protective layer of the strip from damage during construction, and its tip structure is also beneficial for construction. At the same time, if the thermoplastic material is damaged, the repair management is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0026] Figure 1 This is a structural diagram of the photovoltaic concrete pile foundation sheath of the utility model;

[0027] Figure 2 It is a schematic diagram of the installation position of the disc of the utility model;

[0028] Figure 3 It is a three-dimensional structural diagram of the disc of the utility model;

[0029] Figure 4 It is a top view of the disc of the utility model;

[0030] Figure 5 This is a structural diagram of the protective cover of the utility model;

[0031] In the figure: 1. protective layer; 2. disc; 3. metal wire; 4. protective cover; 5. pile foundation column. DETAILED DESCRIPTION

[0032] It should be noted that the following detailed descriptions are all exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0033] The existing anti-corrosion technology has problems such as single anti-corrosion structure, complex construction process and unsatisfactory anti-corrosion effect. It is also easily limited by the performance defects of the anti-corrosion materials themselves, such as the anti-corrosion treatment of steel sleeves, degradation and aging of coatings and anti-corrosion bags, etc. Therefore, it is necessary to study the anti-corrosion structure of pile foundation with better anti-corrosion effect, so as to improve the anti-corrosion effect of concrete pile foundation in saline soil corrosion environment and ensure the service life and safety performance of concrete pile foundation.

[0034] The following is a detailed description of the utility model with reference to the accompanying drawings. The embodiment discloses a photovoltaic concrete pile foundation sheath, such as Figure 1 As shown, it includes a disc 2, a metal wire 3 is arranged on the outer surface of the disc 2, and the disc 2 is sleeved on the middle and lower end of the pile foundation column 5; a protective sleeve 4 is sleeved on the lower end of the pile foundation column 5; the disc 2 is located inside the protective sleeve 4, and the protective sleeve 4 is connected to the metal wire 3 of the disc 2; and the upper end of the disc 2 is wrapped with a protective layer 1.

[0035] The disc 2 can strengthen the connection between the thermoplastic outer layer and the concrete, facilitate the coating and armoring of the outer thermoplastic material, and at the same time connect the protective cover 4 to ensure that it will not fall off during the load-balanced vibration construction. The metal wire 3 of the disc 2 and the protective cover 4 are connected by hot melt. The disc 2 is a thermoplastic material. The plastic disc 2 with the metal wire 3 is at the lower end of the pile foundation column 5, which is determined by the engineering situation and is slightly higher than the depth of the soil.

[0036] When pre-setting the concrete pile foundation, a thermoplastic material disc 2 with embedded metal wire 3 is added, and then a thermoplastic tape protective layer 1 is wound from the foot to the head (the position of the disc 2 can be disconnected and wound again, or the winding can be started from the position of the disc 2), and the lower end is protected by a protective sleeve 4, connected to the disc 2 with the embedded metal wire 3, and hot-melt connection is performed at the lower end to form a second layer of protection.

[0037] like Figure 3 As shown, the metal wires 3 are interlaced and wound around the outer surface of the disc 2. The metal wires 3 can improve the strength of the disc 2 and facilitate the hot-melt connection between the protective cover 4 and the protective layer 1 in the later stage.

[0038] like Figure 2 As shown, the diameter of the disc 2 is larger than the diameter of the pile foundation column 5. The disc 2 and the protective sleeve 4 cooperate to effectively provide a buffer space for the protective layer 1 during the construction process to prevent the protective layer 1 from being damaged by stones and gravel in the soil.

[0039] like Figure 5 As shown, the protective cover 4 is a hollow gyro-shaped cover, and the interior of the protective cover 4 is a hollow structure. The upper end of the protective cover 4 is cylindrical. The lower end of the protective cover 4 is conical, and the lower end is a pointed structure. The protective cover 4 is mainly to ensure the integrity of the protective layer 1 during the load-balanced vibration construction. At the same time, the tip is conducive to the connection between the construction protection concrete and the protective layer 1. During construction, the force is borne by the concrete column and the cover to avoid the wear of the thermoplastic protective layer 1.

[0040] The winding angle of the lower end of the protective layer 1 is greater than that of the upper end. The protective layer 1 is wound to the top of the pile foundation column 5. During installation, the concrete, steel bars and disc 2 are pre-placed in the mold. After demolding, a thermoplastic tape (PE tape as an example) is used to firstly wind from the position of the disc 2 at 90 degrees, and then wind upward at 45-78 degrees. When winding, the front side is pressed and heat-sealed until the top is covered, and the lower end is protected by the protective sleeve 4 through hot-melt connection.

[0041] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A photovoltaic concrete pile foundation sheath, characterized in that: It includes a disc, a metal wire is arranged on the outer surface of the disc, and the disc is sleeved on the middle and lower end of the pile foundation column; a protective sleeve is sleeved on the lower end of the pile foundation column; the disc is located inside the protective sleeve, and the protective sleeve is connected to the metal wire of the disc; and a protective layer is wound around the upper end of the disc.

2. A photovoltaic concrete pile foundation sheath as claimed in claim 1, characterized in that: The metal wire of the disc and the protective sleeve are connected by hot melting.

3. A photovoltaic concrete pile foundation sheath as claimed in claim 1, characterized in that: The disc is of thermoplastic material.

4. The photovoltaic concrete pile foundation sheath according to claim 1, characterized in that: The diameter of the disc is greater than the diameter of the pile foundation column.

5. The photovoltaic concrete pile foundation sheath according to claim 1, characterized in that: The metal wires are wound in an interlaced manner on the outer surface of the disc.

6. The photovoltaic concrete pile foundation jacket according to claim 1, characterized in that: The protective cover is a hollow structure.

7. The photovoltaic concrete pile foundation jacket according to claim 1, characterized in that: The upper end of the protective sleeve is cylindrical.

8. The photovoltaic concrete pile foundation sheath according to claim 7, characterized in that: The lower end of the protective sleeve is tapered.

9. The photovoltaic concrete pile foundation jacket according to claim 1, characterized in that: The winding angle of the lower end of the protective layer is greater than the winding angle of the upper end.

10. The photovoltaic concrete pile foundation jacket according to claim 1, characterized in that: The protective layer is wound around the top of the pile foundation column.

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