Windproof and sand-fixing reinforcement method for transmission line tower foundation

Abstract

The invention provides a wind prevention and sand fixation reinforcing method of a transmission line tower foundation. The wind prevention and sand fixation reinforcing method is used for reinforcing the transmission line tower foundation in desert areas, the foundation is in a reversed T shape, and step-shaped projections are arranged at the joint of a stand column and a base plate of the foundation; the wind prevention and sand fixation reinforcing method includes reinforcing and painting the foundation and paving and putting up barrier around the foundation buried in the ground. Compared with wind prevention and sand fixation reinforcing methods in the prior art, the wind prevention and sand fixation reinforcing method of the transmission line tower foundation has the advantages that damages caused by sand erosion to the transmission line tower foundation are greatly reduced, meanwhile, normal work of the transmission line tower foundation is guaranteed by reinforcing sandy ground, later-period maintenance expenses are reduced, and service life of the transmission line tower foundation is prolonged.

Description

technical field [0001] The invention relates to a method for strengthening tower foundations, in particular to a windproof and sand-fixing method for tower foundations of power transmission lines. Background technique [0002] With the accelerating pace of electric power development, the power grid has also developed rapidly, the operating voltage level of the power grid system has been continuously improved, and the network scale has also been continuously expanded. Power grid construction has become the main content of electric power construction, and by 2020, a powerful smart grid will be built in an all-round way. [0003] At present, the following two windproof and sand-fixing methods are usually used for the foundation of transmission line towers in desert areas: [0004] 1. Grass grid sand barrier sand fixation method; within the interval of 2000-3000mm outside the foundation, bury straws with a length of about 500mm or other similar objects that are easy to get at t...

AI Technical Summary

Problems solved by technology

[0005] 1. Because wheat straw and other similar materials are easy to rot, they usually need to be maintained in time during the inspection during the operation of the line. The maintenance cycle is usually 1-2 years; lead to engineering safety hazards;

[0006] 2. Wind erosion is likely to occur at the contact part between the foundation column of the tower and the sandy soil on the surface, such as figure 1 As shown, the foundation of the tower is exposed, causing a safety hazard

This method can effectively avoid the wind erosion of the foundation column of the tower, but because the construction site is a desert, the engineering materials need to be transported to the construction site manually, and the amount of crushed stone required is huge, which greatly increases the workload during the construction process, resulting in big expense

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