Foundations of Wind Turbines
Problems of cracking in the Foundations of Wind Turbines
For some time now, important problems of cracking have been detected in the foundations of wind turbines. Although it is a matter subject to a strict degree of confidentiality, it is known that thousands of these foundations are cracked all over the world, giving rise to undesirable and often unacceptable movements of the turbines.
The technology developed by HCC, more than a decade ago, has allowed the repair, to date, of more than 450 foundations, in several countries, with very satisfactory results. The injection, of resins of high viscosity and very high mechanical characteristics developed at early ages, formulated expressly for this application, has allowed to resolve in a definitive way the cracking problems, reduce the movements to the project values and reduce the stoppage time of each turbine, in many cases at 24 hours. The resins are injected at very high pressure.
More than ten years of experience endorse the suitability of the solution independently of the latitude, and therefore of the temperatures, both at the time of repair and in its service phase. Works carried out from the south of Spain to the extreme north of Europe, subjected to exhaustive controls of pedestal and turbine movements, certify the full validity and stability over time of the materials and technologies applied.