TECHNICAL INSPECTION AND STRENGTHENING OF A WIND POWER PLANT STRUCTURE
Keywords:
technical inspection, foundation, wind power plant, concrete defects, grouting, structural strengthening, SikaGrout-3350Abstract
The article examines current issues related to the technical inspection and strengthening of buildings and structures in the context of modern requirements for reliability, durability, and safety. Methodological approaches to assessing the technical condition of facilities are presented, including visual inspection, instrumental measurements, non-destructive testing, and the use of digital monitoring technologies. The main factors contributing to the reduction of structural performance are analyzed, particularly material aging, environmental impact, dynamic and man-made loads, as well as construction technology violations. The article presents the results of a technical inspection of the foundation of a wind energy installation located within the Skybova zone of the Beskyd part of the Carpathians. The geological, climatic, and structural characteristics of the site and the structure are described.
The aim of the research is to determine the current technical condition of the load-bearing elements, identify structural defects, and develop effective methods for strengthening the concrete foundation.
The inspection was carried out in several stages using visual, instrumental, and laboratory testing methods. Local voids and zones of reduced concrete density were identified, which decrease the load-bearing capacity of the foundation. To eliminate these defects, a strengthening technology using SikaGrout®-3350 - a one-component, non-shrink, high-strength cementitious grout - was proposed.
The article details the sequence of repair operations, material preparation and injection procedures, and quality control requirements. The proposed solution restores the monolithic integrity of the concrete foundation, improves its reliability, and extends its service life without dismantling the structure.
The obtained results can be applied to similar renewable energy projects, especially in seismically active and geotechnically complex mountain regions of Ukraine.
References
DBN V.1.2-14:2018. System for ensuring reliability and safety of construction projects. General principles for ensuring reliability and structural safety of buildings and structures. Kyiv: Ministry of Construction of Ukraine, 2018.
DBN V.1.2-2:2006. Loads and impacts. Design standards. Kyiv: Ministry of Construction of Ukraine, 2006.
DBN V.2.1-10:2018. Foundations and substructures of buildings and structures. General provisions. Kyiv: Ministry of Construction of Ukraine, 2018.
DK 018-2000. State Classifier of Buildings and Structures. Kyiv: Ministry of Construction of Ukraine, 2000.
Technical Report “Inspection of Foundation F-1 of Wind Turbine Unit No. 5 of the Skole Wind Power Plant (WPP)”, LLC “NIKO BUD”, Lviv, 2023.
Technical Report. Engineering and Geological Investigations for the Skole Wind Power Plant. Private Enterprise “Enerhoproektservice”, Lviv, 2021.
Working Design Project “Construction of the Skole Wind Power Plant (WPP) on the Territory of Oriv Village Council, Stryi District, Lviv Region”, Private Enterprise “PROEKT-BUD”, Lviv, 2023.
