Reinforcement structure and method of double cement type pole tower in goaf of coal mine

Abstract

The invention discloses a reinforcing structure and method of a double-cement tower in a coal gob area and aims at reinforcing a double-cement tower, keeping a favorable reinforcing deviation rectifying effect, meeting the requirement for safety operation of a line, reaching the operation standard of the line, realizing in-advance precaution and prevention of hidden dangers and keeping safety production. The adopted technical scheme is as follows: a strip-shaped foundation is poured on a double-cement tower foundation and is used as a foundation to be reinforced, a planar steel plate is embedded in the strip-shaped foundation and is fixedly provided with a plurality of groups of channel steel clinging to a pole body of the double-cement tower, the channel steel is provided with upright column channel steel fixedly connected with the pole body of the double-cement tower, the pole body of the double-cement tower is reinforced by using the channel steel and the upright column channel steel, meanwhile, a cross arm of the double-cement tower is supported by a U-shaped clamping slot in the top of the upright column channel steel, an insulator string which is hung by using a vertical steel cored stranded wire is hung at the lower end of every phase conductor of the double-cement tower, and a length-adjustable 45-DEG bracing wire is connected to the double-cement tower.

Description

technical field [0001] The invention relates to the field of reinforcement of power transmission lines, in particular to a reinforcement structure and method of double cement type pole towers in goafs of coal mines. Background technique [0002] In recent years, due to the large-scale development of coal mines, geological disasters often occur, such as coal mine goaf subsidence, surface cracking, dislocation, etc. Most of the company's transmission lines are located above the Jurassic coalfields in northern Shaanxi. The coal seams are buried relatively shallow, between about 40-150m, and the thickness of the coal seams is about 3-5m, which is prone to coal mine goaf collapse. Due to the collapse of the goaf in the coal mine, it often leads to the subsidence of the tower foundation, the tilt of the tower, the distortion of the tower material, and even the broken wire of the inverted pole, which seriously threatens the safe operation of the power line. [0003] For the old tr...

AI Technical Summary

Problems solved by technology

Due to the collapse of the goaf in the coal mine, it often leads to the subsidence of the tower foundation, the tilt of the tower, the distortion of the tower material, and even the disconnection of the tower, which seriously threatens the safe operation of the power line.

[0003] For the old transmission lines that still use cement poles and towers in the goaf area, the use of traditional techniques and methods has little effect. After reinforcement, the poles and towers are still broken and the cross-arm is tilted, causing the abnormal situation of line-to-phase discharge.

Images