COMPLEX PROTECTION OF UNDERGROUND CONSTRUCTIONS DURING OPERATION
The article presents the research results obtained when choosing the optimal waterproofing system for underground parts of buildings and structures. The choice of reliable waterproofing of underground structures is a complex complex task, for the successful functioning of which it is necessary to focus on a systematic approach to its creation. The aim of the study was to select the optimal waterproofing system using the mathematical method - the hierarchy analysis method. The method of the work carried out was to present the problem under consideration in the form of a hierarchical structure. As applied research methods, the procedure of pairwise comparisons was used, which determined the priorities in the hierarchical structure. Thus, the method of analysis of hierarchies made it possible to provide a rational and systematic approach to making an objective decision when choosing the best waterproofing system. The search was conducted both in the direction of finding new innovative materials, and in the technology of protective coatings. It has been revealed that especially difficult conditions arise during the overhauls of operated buildings located in confined areas with aggressive or pressure groundwater. As a result, the effectiveness of the mathematical method is reflected by the authors in choosing the optimal solution for the protection of bearing underground structural elements. Based on what, the authors of the article proposed a new technology for protecting foundations, namely the integrated protection of structures with durable mineral-based waterproofing materials. This technology has been widely used in the installation of underground waterproofing of buildings and structures during repair and restoration work in cramped conditions with close proximity of roads, communications and neighboring buildings.