Analytical research of the parameters and characteristics of new “quarry cavities – backfill material” systems: Case study of Ukraine

Abstract

Purpose. The research is aimed to identify, investigate and study the parameters and characteristics of the “quarry cavities – backfill material” systems on the territory of Ukraine using new comprehensive methodological tools that form the basis for the development of effective methods for restoring the earth’s surface with an emphasis on industrial and construction use. Methods. An integrated approach is used, which includes: analysis of the spatial location of industrial waste heaps on the territory of Ukraine as potential backfill materials and resulting quarry cavities that are not subject to complete earth’s surface restoration, as well as determination of the volumes of resulting cavities and backfill materials. Based on a set of factors, the “quarry cavities – backfill material” systems have been ranked according to priority. Tools used are: information data from the State Informational Geological Fund of Ukraine, registers of industrial waste accumulation sites in region, the Google Earth satellite program, an online topographic map (OpenStreetMap) and Blender program for constructing 3D models. Findings. A new concept and theoretical representation of “quarry cavities – backfill material” has been formulated. The characteristics of a number of important conditions for the harmonious existence and effective implementation of promising “quarry cavities – backfill material” systems are provided. A new information-analytical map of the spatial location of potential backfill materials and resulting quarry cavities has been created. Thirteen promising systems and their parameters have been identified, within which it is appropriate to consider backfill technologies for the complete earth’s surface restoration. The existing balance of cavities and backfill materials for the identified systems has been determined, followed by grading of quarries according to the predicted lifespan. Originality. The “quarry cavities – backfill material” systems, which have the greatest advantages, are specified by ranking them according to a complex of technological, environmental, economic and social factors. Practical implications. The results obtained provide valuable information for the development of a government strategy and environmental programs for the restoration of land areas disturbed by mining operations based on backfill technologies and their subsequent use for industrial purposes.