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Extra-high voltage large-span iron tower assembling method

A technology for tower assembly and large span, applied in the direction of tower, building type, building, etc., can solve the problems of inconvenient installation and dismantling of the boom, large size of UHV large span iron tower components, and heavy lifting weight, etc. And the effect of convenient dismantling, reducing the workload of aerial work and increasing construction efficiency

Active Publication Date: 2013-10-09
HUBEI ELECTRIC POWER TRANSMISSION & DISTRIBUTION ENG
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Problems solved by technology

[0002] Research on the erection process of UHV iron towers is rare in the existing technology. Due to the large size of UHV large-span iron tower components, heavy hoisting, and difficult installation, it is difficult to learn from the existing technology. The difficulty of its construction lies in holding It is very inconvenient to install and dismantle the boom of the pole, the lifting weight is large, and a large hoist is required to adjust the amplitude of the rocker to make the tower parts installed in place, and the number of hoistings is large, the workload at high altitude is large, unsafe, and the stability of the hoisting system is difficult. ensure

Method used

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specific Embodiment

[0027] The specific technical scheme of the present invention is illustrated with the test of the UHV iron tower assembly process on the 1000kV UHV test base.

[0028] 1. Arranging the construction site

[0029] Arrangement of ground anchors: cast-in-place concrete is adopted for the site layout of ground anchors, and the ground anchors are constructed simultaneously with the foundation construction of the iron tower; and ground anchor pull rings are buried on the foundation to facilitate tower construction.

[0030] Arrangement of the traction system: a centralized steering system is set on the pole base. The traction rope and the adjustable arm rope turn to the power field through the centralized steering system. The power field adopts centralized monitoring and electronic control operation to ensure accurate and synchronous actions, realize safe locking and prevent misoperation.

[0031] To set up the pole system:

[0032] a. Pole-holding wire: The pole-holding foundatio...

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Abstract

The invention discloses an extra-high voltage large-span iron tower assembling method, which belongs to the technical field of electric transmission and transformation electric power circuit construction processes. The method comprises the following steps of: 1, arranging a construction site, namely arranging a ground anchor, performing pole foundation construction, and arranging main material single pieces and tower sheets of an assembled iron tower body on the ground; 2, assembling a pole, mounting a hoisting system, and hoisting iron tower legs, wherein the assembled pole is a spinning self-elevating ground pole which is provided with horizontal double arms and a hydraulic downward jacking stock; 3, lifting the pole, hoisting the iron tower body section by section, and finally hoisting iron tower cross arms one by one in a segmentation mode; and 4, mounting iron tower accessories, disassembling the pole, and finally overhauling and self-checking to finish the construction. The method has the advantages of reducing the working amount of aloft operation, along with a short construction period, a small number of hoisting times and high safety; by the method, safety risks are reduced, required aloft operation personnel is greatly reduced, and labor cost is reduced; and the method has extremely good economic and social benefits.

Description

technical field [0001] The invention relates to a construction technique of a transmission and transformation power line, in particular to a method for assembling an ultra-high voltage large-span iron tower. Background technique [0002] Research on the erection process of UHV iron towers is rare in the existing technology. Due to the large size of UHV large-span iron tower components, heavy hoisting, and difficult installation, it is difficult to learn from the existing technology. The difficulty of its construction lies in holding It is very inconvenient to install and dismantle the boom of the pole, the lifting weight is large, and a large hoist is required to adjust the amplitude of the rocker to make the tower parts installed in place, and the number of hoistings is large, the workload at high altitude is large, unsafe, and the stability of the hoisting system is difficult. ensure. Contents of the invention [0003] The purpose of the present invention is to solve th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04H12/08E04H12/34
Inventor 彭世建何明张松华余秋安童庆望邹俊季斌
Owner HUBEI ELECTRIC POWER TRANSMISSION & DISTRIBUTION ENG
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