Fabricated foundation with oblique-angle cone supports for power transmission tower, and construction method thereof

Abstract

The invention relates to a fabricated foundation with oblique-angle cone supports for a power transmission tower, and a construction method thereof. The power transmission tower comprises a tower body, cross arms located at the upper end of the tower body and arranged vertically to the axial direction of the tower body, and tower feet arranged at the lower end of the tower body. The fabricated foundation comprises the steel supports provided with fixed bases, wherein each steel support is of a tower-shaped structure with a longitudinal section which is in the shape of an oblique triangle, and fixing elements connected with the corresponding tower foot and support fixing plates connected with the corresponding fixed base are arranged at the upper end and the lower end of each steel support respectively; and each fixed base is composed of transversal fixing plates horizontally arranged along the longitudinal direction, and fixing beams located at the upper sides of the transversal fixing plates and arranged vertically to the transversal fixing plates. The fabricated foundation with oblique-angle cone supports for the power transmission tower, and the construction method thereof, which are provided by the invention, have the advantages of high foundation capability, low installation difficulty and fast rush-repair speed.

Description

technical field [0001] The invention relates to an assembled foundation, in particular to an assembled foundation of an inclined pyramid support for a power transmission tower and a construction method thereof. Background technique [0002] The tower foundation of the transmission tower is buried underground to provide load support for the transmission line tower, which is an important part of the transmission line structure system. Transmission lines pass through areas with steep mountain roads, often encountering situations where there is a lack of construction raw materials and large-scale construction machinery is difficult to transport and reach. Therefore, a prefabricated foundation for transmission towers is needed to ensure the construction of transmission towers in steep mountain areas, reduce construction difficulty, and improve construction quality and economy. [0003] The existing tower foundation is a concrete foundation poured on site. It is necessary to exca...

AI Technical Summary

Problems solved by technology

The following problems will be involved: ① It is difficult to transport the foundation components, concrete and steel bars of towers in steep mountain areas

High cost of foundation, difficult transportation and difficult installation

② The support formwork and concrete pouring of the tower foundation need time to maintain, the construction is cumbersome and the cycle is long, and it cannot meet the engineering application requirements of emergency repair

③The cost of transportation and construction is high, and the construction progress is difficult to control

④ Not suitable for areas with steep mountain roads, lack of construction raw materials, large construction machinery handling and work

⑤ The bearing capacity of the foundation is low, the foundation needs to occupy a larger area, deeper foundation burial depth, excavation of earthwork and large amount of concrete and steel bars

⑥ The single weight of the basic components makes it difficult to hoist

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