Self-compacting spiral steel pile

A self-compacting, spiral steel technology, applied in the direction of sheet pile walls, buildings, foundation structure engineering, etc., can solve the problems of increased pile side resistance, unfavorable environmental protection, and insufficient soil contact, so as to increase pile side resistance and improve resistance. The effect of compressive and pull-out capacity

Inactive Publication Date: 2020-11-10
LANZHOU UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Aiming at the problems (1) The contact between the top of the traditional spiral steel pile body and the soil is not dense enough, and the pile side resistance needs to be improved; (2) The traditional spiral steel pile will discharge soil during the drilling process, which is not conducive to environmental protection

Method used

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  • Self-compacting spiral steel pile

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Embodiment Construction

[0011] Such as figure 1 As shown, the present invention discloses a self-compacting spiral steel pile, comprising a pile body 1 and a helical blade 2, the helical blade 2 is arranged on the outer wall of the front end of the pile body 1, and the diameter of the pile body above the helical blade 2 is enlarged .

[0012] The diameter of the pile body 1 at the position above the helical blade 2 is greater than or equal to the outer diameter of the helical blade 2 .

[0013] The head of the spiral steel pile is conical, and the spiral blade 2 is located above the conical shape.

[0014] The helical blade 2 is a spiral wound on the outer wall of the pile body.

[0015] The main feature of the self-compacting spiral steel pile of the present invention is that the pile diameter at the position above the spiral blade of the spiral steel pile is enlarged, and the pile diameter can be greater than or equal to the outer diameter of the spiral blade.

[0016] Finally, it should be note...

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Abstract

The invention discloses a self-compacting spiral steel pile which comprises a pile body and a spiral blade, the spiral blade is arranged on the outer wall of the front end of the pile body, and the diameter of the part, above the spiral blade, of the pile body is increased. The diameter of the part, above the spiral blade, of the pile body can be larger than or equal to the outer diameter of the spiral blade. According to the self-compacting spiral steel pile, in the drilling process, the spiral blade of the self-compacting spiral steel pile can convey soil to an expanding head, the expandinghead can press the soil into the periphery of the pile in the radial direction, the soil is prevented from being drilled out, the soil around the pile is compacted, the compactness of the soil aroundthe pile and the pile side resistance above the spiral blade are increased, and then the compression resistance and uplift bearing capacity of the pile body are improved. In conclusion, compared witha traditional spiral steel pile, the self-compacting spiral steel pile not only can prevent soil from being discharged, but also can improve the pile side resistance of the part above the spiral blade, and therefore the bearing capacity of the single pile is improved.

Description

technical field [0001] The invention relates to the technical field of spiral steel piles, in particular to a self-compacting spiral steel pile. Background technique [0002] Aiming at the problems (1) The contact between the top of the traditional spiral steel pile body and the soil is not dense enough, and the pile side resistance needs to be improved; (2) The traditional spiral steel pile will discharge soil during the drilling process, which is not conducive to environmental protection. It is considered that by filling the soil around the pile body with the soil at the pile position, not only will the soil not be discharged during the drilling process, but also the side resistance of the pile will be increased, thereby improving the bearing capacity of the steel pile. Therefore, on the basis of retaining the advantages of traditional spiral steel piles, a self-compacting spiral steel pile is proposed. Contents of the invention [0003] In order to solve the above tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/28E02D5/56E02D5/48
CPCE02D5/28E02D5/285E02D5/48E02D5/56
Inventor 张敬书赵发伟刘海杨于婷
Owner LANZHOU UNIVERSITY
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