Construction method for assembling 1000 kV tangent suspension tower through double holding poles

Abstract

The invention relates to a construction method for assembling a 1000 kV tangent suspension tower through double holding poles. Through the construction method for assembling the 1000 kV tangent suspension tower through the double holding poles, the heavy tower with long cross arms and high crank arms in a 1000 kV ultra high voltage power transmission line is assembled through the double holding poles; when cup-type tangent towers are hoisted, a construction method that outer stay wires are suspended internally and single holding poles are used is adopted frequently, unsafe factors of large dip angles of the holding poles, large included angles between the outer stay wires and the ground, positioning difficulty and the like are caused by the adoption of assembling conducted by internally suspending the outer stay wires and adopting the single holding poles due to the facts that weight is large, crank arms are high and cross arms are large, and no guarantee can be provided for construction safety production. The cup-type tangent tower is hoisted through the double holding poles, so that construction safety risks are greatly reduced, tool transportation in mountainous terrain is facilitated, safety guarantees are provided for tower assembling, and construction efficiency and economic effects of tower assembling are improved.

Description

technical field [0001] The invention relates to a construction method for erecting a 1000kV linear iron tower by using double poles. Background technique [0002] In the past, when hoisting a straight wineglass tower, the construction method of inner suspension and outer stay wire single pole was commonly used. However, in the case of limited construction terrain, due to the heavy weight, high crank arm and large cross arm, the internal suspension method was adopted. There are unsafe factors such as large inclination angle of the pole, large angle between the outer stay wire and the ground, difficulty in positioning, etc. in the single pole assembly of the outer stay wire, which cannot provide guarantee for construction safety and production. Contents of the invention [0003] The purpose of the present invention is to provide a construction method for erecting a 1000kV linear iron tower using double poles, which can greatly reduce the construction safety risk of the 1000k...

AI Technical Summary

Problems solved by technology

[0002] In the past, when hoisting a straight wineglass tower, the construction method of inner suspension and outer stay wire single pole was commonly used. However, in the case of limited construction terrain, due to the heavy weight, high crank arm and large cross arm, the internal suspension method was adopted. There are unsafe factors such as large inclination angle of the pole, large angle between the outer pull wire and the ground, and difficulty in positioning in the assembly of the single-holding pole of the outer pull wire, which cannot provide guarantee for construction safety and production

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