Fan foundation reinforcing structure and reinforcing method thereof

Abstract

The invention discloses a fan foundation reinforcing structure and a reinforcing method thereof, and belongs to the technical field of fan foundations. The fan foundation reinforcing structure is mainly composed of a plurality of supporting structures and a plurality of anchor cables embedded into a foundation. According to the reinforcing structure, the fan foundation and the supporting structures are locked and anchored through the anchor cables firstly, then the multiple supporting structures and a tower drum are supported and fixed to form a whole, and finally the purposes of reducing the stress of a foundation ring or an anchor rod in an original foundation, enabling the structural load to be distributed evenly, stabilizing a tower body and repairing and reinforcing the fan foundation are achieved. The fan foundation reinforcing structure is simple in structure and clear in force transmission, wet construction in the construction process is reduced, operation is convenient, the transportation and construction cost is reduced, the construction period is shortened, and good economic efficiency is achieved; and in addition, replacement can be conducted in the later period, and therefore the service life of the fan foundation is prolonged.

Description

technical field [0001] The invention relates to a wind turbine foundation, in particular to a wind turbine foundation reinforcement structure and a reinforcement method thereof. Background technique [0002] The development of society is inseparable from the industrial revolution. As an important raw material of the industrial revolution, non-renewable resources have gradually become scarce in the perennial consumption. Countries are aware of the importance of developing new energy and are paying more and more attention to the use of renewable resources. Due to the low energy conversion rate of traditional thermal power generation, it pollutes the environment and wastes resources. Wind power generation has emerged as an emerging green power generation technology. This largely solves the power shortage problem caused by inconvenient access to electricity in some remote areas of our country. [0003] Our country is still in the early stage of wind power generation technology ...

AI Technical Summary

Problems solved by technology

[0003] my country is still in the early stage of wind power technology development, the power generation technology is immature, and the service life of the fan base is short, which is easy to cause loss and waste of resources

The built wind power tower has a high height and a large volume, and the bending moment and force transmitted from the upper part of the tower body to the foundation of the wind turbine are relatively large. The variable load direction causes the bottom of the tower to become unstable, resulting in damage to the foundation of the wind turbine.

For the foundation ring type fan foundation, the damage is often caused by the foundation ring embedded in the reinforced concrete foundation, which has been affected by the vibration load for a long time, and has gaps with the surrounding reinforced concrete foundation, resulting in unstable fixation.

For the anchor rod fan foundation, with the prolongation of service time, the anchor rod will be deformed, and the prestress will continue to decrease, resulting in the failure of the anchor rod

Most of the existing wind turbine foundation reinforcement technologies are placing reinforced concrete beams on the upper part of the original foundation, or adding a layer of reinforced concrete on the upper part of the original foundation. The foundation structure is complex and the construction process is cumbersome.

This technology is more difficult to implement in some remote areas with poor geographical location

On the one hand, during the construction process, the workload of wet work is heavy, and the construction period is long, which leads to an increase in construction costs. On the other hand, the reinforcement effect has little effect, and it is difficult to ensure that the service life of the fan foundation can be achieved after reinforcement.

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