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Inclined post pile foundation for overhead transmission line

A technology for overhead transmission lines and pile foundations, which is applied in the field of pile foundations, can solve problems such as long construction periods, achieve reasonable foundation force, reduce land acquisition area, and reduce the amount of concrete and steel used in the foundation

Inactive Publication Date: 2012-08-22
SHANGHAI MUNICIPAL ELECTRIC POWER CO +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

From the construction point of view, this method is convenient for construction, and the accuracy of foundation construction is not high, but the construction period is long. For reconstruction and expansion projects, it will cause two power outages successively

Method used

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  • Inclined post pile foundation for overhead transmission line
  • Inclined post pile foundation for overhead transmission line
  • Inclined post pile foundation for overhead transmission line

Examples

Experimental program
Comparison scheme
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Embodiment

[0017] A kind of inclined column pile foundation for overhead transmission line, its structure is as follows figure 1 As shown, the pile foundation includes an insertion angle steel 1, an anchor angle steel 2, a concrete pile 3, and a foundation step pile 7, and the insertion angle steel 1 and the anchor angle steel 2 are respectively fixedly installed on the upper and lower parts of the concrete pile 3, as figure 2 As shown, thereby facilitating the fixing of the concrete pile 3 and the connection with other pile foundations or transmission towers. The concrete pile 3 forms an included angle of 10°-20° with the vertical direction, so as to ensure that the slope of the inclined column pile foundation is consistent with the slope of the transmission line support. The foundation step pile 7 is arranged at the bottom of the concrete pile 3, and is poured and connected with the concrete pile 3.

[0018] The top of the concrete pile 3 is connected to the foot of the power transmi...

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Abstract

The invention relates to an inclined post pile foundation for an overhead transmission line. The inclined post pile foundation comprises inserted angle steel, anchoring angle steel, a concrete pile and a foundation step pile, wherein the inserted angle steel and the anchoring angle steel are fixedly arranged on the upper part and the lower part of the concrete pile respectively; an included angle of 10-20 degree is formed between the concrete pile and a vertical direction; and the foundation step pile is arranged at the bottom of the concrete pile, and is connected with the concrete pile by pouring. Compared with the prior art, the obliqueness is consistent with the gradient of an overhead transmission line bracket, so that the stress states of a foundation upright post and a bottom plate are improved greatly, the influence of foundation horizontal force on a foundation bottom plate is reduced to the maximum extent, and the stability of the foundation is enhanced remarkably; and meanwhile, the eccentric bending moment is reduced, so that the size of the controlled foundation bottom plate can be reduced correspondingly, the concrete amount and reinforcement amount of the foundation are reduced, the foundation is stressed reasonably, the anti-dumping stability is enhanced greatly, and the using amount of a foundation material can be saved by about 20 percent.

Description

technical field [0001] The invention relates to a pile foundation, in particular to a slanted column pile foundation used for overhead power transmission lines. Background technique [0002] The outlet structure of conventional overhead transmission lines often adopts the form of embedded column foot nodes, that is, a cup opening is left on the top of the foundation, the herringbone steel pipe column is inserted into the cup opening, and then the cup opening is filled with concrete of a higher grade. It is carried out twice, and the subsequent wire hanging work can only be carried out after the second concrete pouring has formed strength. From the construction point of view, this method is convenient for construction, and the accuracy of foundation construction is not high, but the construction period is long. For the reconstruction and expansion project, it will cause two power outages successively. Contents of the invention [0003] The purpose of the present invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/12E02D27/42
Inventor 陶春凤顾俊颉梁浩倪镭金成生郑伟华王怡风龚泉徐坤
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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