GEODYNAMICS

The article is aimed at conducting the engineering-construction assessment of Irpin town of Kyiv region. It is based on the engineering-geological zoning of the settlement, which provides the allocation of different-level taxonomic units with a set of natural and anthropogenic factors of construction conditions from the largest unit (engineering-geological region) to the smallest (sites and subsites). Engineering and geological surveying and mapping became the main research methods. The main result of the study was a comprehensive comparison of data on the geomorphological, geological-genetic structure, hydrogeological conditions, soils’ composition and properties of Irpin. It ultimately provided an opportunity to build a large-scale synthetic map of engineering-geological zoning and engineering- construction assessment of the town. The study identified eleven engineering-geological sites with appropriate characteristics of natural and anthropogenic factors of construction conditions factors, including have been identified, among which six sitesare unfavorable for construction. The scientific novelty of the above research lies in the application of engineering-geological zoning as a basis for engineering-construction assessment, which is not limited to the selection of planning restrictions of an engineering-geological nature. For the first time the novel method of engineering-geological subsites’ selection is based on the principle of taking into account natural hazards and morphometric characteristics of the relief. They reflect the degree of erosion dissection, potential for the of modern relief-forming processes’ manifestation and soil erosion. The practical aspect of the conducted research consists in creating a high-quality scheme of engineering-construction assessment, supplementing the scheme of existing planning restrictions, selecting optimal and economically justified measures for engineering preparation and territories’ protection against dangerous geological processes. Engineering-geological zoning allows you to determine safe places for the accomodation of engineering structures, their structural features, choose rational types of foundations, reduce the cost of survey and construction work and generally improve the design’s quality.