Sliding-sleeve-provided steel pipe pile photovoltaic support foundation used for frozen earth areas

A technology of photovoltaic brackets and steel pipe piles, which is applied in infrastructure engineering, sheet pile walls, protection devices, etc., and can solve problems such as high cost and impact on project investment yield

Inactive Publication Date: 2017-05-31
SHANGHAI ELECTRIC POWER DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing technology, the photovoltaic support foundation load of a large-scale photovoltaic field is small but the number is large, which is the main factor affecting the cost of the photovoltaic field. Due to the frost heave deformation of the foundation soil in permafrost areas, general pile foundations or natural foundations are used to build Reduce the impact of frost heave deformation, the cost is high, which affects the return on investment of the project

Method used

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  • Sliding-sleeve-provided steel pipe pile photovoltaic support foundation used for frozen earth areas
  • Sliding-sleeve-provided steel pipe pile photovoltaic support foundation used for frozen earth areas

Examples

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Embodiment

[0020] Such as figure 1 and figure 2 As shown, the steel pipe pile photovoltaic support foundation with sliding sleeves used in permafrost regions, including the steel pipe pile main body.

[0021] Wherein, the steel pipe pile main body includes a steel pipe 1 and a spiral steel pipe 3; the inner diameter of the steel pipe 1 matches the outer diameter of the upper part of the spiral steel pipe 3, and the lower end of the steel pipe 1 and the spiral steel pipe 3 The upper end is a detachable connection.

[0022] The lower end of the spiral steel pipe 3 is tapered, and a spiral disk 4 is arranged in the middle of the spiral steel pipe 3 .

[0023] The steel pipe 1 is covered with a U-PVC casing 2, the inner diameter of the U-PVC casing 2 matches the outer diameter of the steel pipe 1, and the outer diameter of the U-PVC casing 2 matches the spiral disc. The outer diameter of steel pipe 3 near the upper end part matches.

[0024] The principle of the present invention is: wh...

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PUM

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Abstract

The invention discloses a sliding-sleeve-provided steel pipe pile photovoltaic support foundation used for frozen earth areas. The steel pipe pile photovoltaic support foundation comprises a steel pipe pile body which comprises a steel pipe and a spiral disc steel pipe; the inner diameter of the steel pipe is matched with the outer diameter of the upper end part of the spiral disc steel pipe, and the lower end of the steel pipe is detachably connected with the upper end of the spiral disc steel pipe; the lower end of the spiral disc steel pipe is conic, and a spiral disc is arranged at the middle portion of the spiral disc steel pipe; and the outer portion of the steel pipe is sleeved with a U-PVC sleeve, the inner diameter of the U-PVC sleeve is matched with the outer diameter of the steel pipe, and the outer diameter of the U-PVC sleeve is matched with the outer diameter of the part, close to the upper end part, of the spiral disc steel pipe. The steel pipe pile photovoltaic support foundation has the frost heaving resistant capacity and the pile tip construction error adjusting capacity, and pile tip displacement cannot be influenced by foundation soil frost heaving; and the construction method of spinning pile sinking or pile anchoring after excavation is adopted.

Description

technical field [0001] The invention relates to the technical field of photovoltaic power generation equipment construction, in particular to a steel pipe pile photovoltaic support foundation with sliding sleeves used in permafrost regions. Background technique [0002] Objectively, many areas with better light resource conditions are located in permafrost areas. However, in the existing technology, the photovoltaic support foundation load of a large-scale photovoltaic field is small but the number is large, which is the main factor affecting the cost of the photovoltaic field. Due to the frost heave deformation of the foundation soil in permafrost areas, general pile foundations or natural foundations are used to build The cost of reducing the impact of frost heave deformation is high, which affects the return on investment of the project. [0003] Therefore, there is an urgent need to improve the existing photovoltaic support foundation so that it can adapt to the foundat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/28E02D5/56E02D5/52E02D5/60E02D31/14E02D31/06E02D27/32
CPCE02D5/285E02D5/526E02D5/56E02D5/60E02D27/32E02D31/06E02D31/14E02D2300/0007E02D2300/0029E02D2200/1671
Inventor 章荣国
Owner SHANGHAI ELECTRIC POWER DESIGN INST
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