V.O. NAUMOV’s scientific contributions

In the contemporary world, the relevance of dismantling and demolition of construction objects is determined by a range of factors that require efficient and innovative solutions in the field of construction process and resource management. The aging of the construction stock, built in the 1960s−1970s, necessitates a thorough examination and development of optimal demolition strategies. Such buildings, having physically and morally exhausted their resource, belong to objects that require special attention due to potential risks they may pose. With the aging of such buildings becoming a widespread phenomenon, the likelihood of defects and malfunctions increases. Demolition and dismantling measures are crucial for minimizing potential adverse effects and ensuring the safety of people and the impact on the national economy as a whole. Furthermore, Ukrainian society faces defining challenges such as military actions and constant attacks by the aggressor country, leading to significant destruction of buildings and structures. Moreover, this situation presents us with the task of finding methods for rapid and safe demolition of objects while preserving valuable resources and the environment for possible swift revival. Considering demolition not only as a necessary procedure but also as a means to achieve sustainability in the construction industry, the need for integration of innovative technologies and software becomes evident. Such tools not only optimize demolition processes but also facilitate careful planning and the use of the most effective demolition methods, reducing the overall impact on the environment and enhancing safety levels. The implementation of this program in the construction industry practice has the potential not only to radically change the approach to the demolition of outdated or damaged buildings but also to be a step towards creating a more sustainable and responsible construction sector. This tool allows considering all important aspects, from the technical characteristics of the object to ecological and social requirements, offering a comprehensive solution to contemporary challenges. In this regard, further research and development of the program could significantly contribute to progress in the field of demolition and reconstruction, opening new opportunities for enhancing efficiency, safety, and sustainability in the construction industry. In this context, the implementation of intelligent technologies and software for the optimal choice of demolition scenarios is crucial. The article aims to discuss and develop a program that will provide a quick and efficient selection of the most adapted demolition strategies in the conditions of destruction and aging of the construction stock, meeting the needs of modern construction and reconstruction. The research goal is to develop and present an algorithm and toolkit for intelligent selection of optimal demolition scenarios for buildings and structures based on the analysis of objects and their analogs. The research subject is the development and improvement of software for intelligent selection of optimal demolition scenarios in construction. The research object is the process of demolishing buildings and structures that are outdated and damaged due to military actions.

This article examines the technological sequence of emergency demolition works at an industrial facility destroyed by a missile attack. The initial stages of clearing the work area, including the dismantling of destroyed structures and preparing the site for crane installation, are described. Particular attention is given to the use of construction excavators with various attachments for demolition and the potential of long-reach excavators for safe operations at significant heights. The limitations of such equipment in specific conditions are considered, and a developed demolition scheme using a boom extension for excavators is described. Special attention is devoted to the organization of demolition work in areas beyond the reach of cranes. The technology of using specialized trolleys for moving dismantled structures and transporting them to the crane operation zone is described. The sequence of operations for dismantling hazardous panels using suspended platforms and rigging mechanisms is provided. The implementation of these technologies resulted in improved construction equipment efficiency and ensured safety during operations. The article demonstrates innovative solutions for performing demolition works at industrial facilities damaged by military actions. The described technologies can be applied to a wide range of similar facilities, considering their technical condition and the specific conditions of the construction site environment. Purpose of the study. To develop and substantiate effective technological solutions for organizing demolition works at industrial facilities damaged as a result of military actions, using modern automation methods and digital technologies to optimize the process of selecting appropriate demolition methods. Subject of the study. Technological processes and tools for carrying out emergency demolition works at damaged industrial facilities, with a focus on methods for improving work efficiency and safety. Object of the study. Damaged industrial facilities that require demolition or reconstruction under conditions of limited access and heightened danger caused by military actions.

This investigation develops an innovative dismantling methodology for industrial facilities impacted by a 2022 missile strike, aiming to restore operations with minimal interruption. The purpose of the research is to establish a rapid and secure dismantling process that integrates seamlessly with ongoing industrial activities, ensuring safety and efficiency. It focuses on the damaged workshop facilities, analyzing the affected structures and utilities to inform emergency dismantling and recovery efforts. Advanced technologies, including specialized excavator attachments and carts, are introduced for precise dismantling, maintaining the integrity of adjacent structures. Our findings illustrate the efficacy of integrating advanced dismantling technologies within active industrial settings, significantly enhancing operational safety and efficiency. The successful application of these methodologies not only aids in the rapid recovery of damaged facilities but also sets a new benchmark for emergency industrial operations. Object of Research: The primary focus is on the damaged industrial workshop facilities, specifically examining the structures, utilities, and operational frameworks affected by the missile strike. This includes the physical site, the technological layout, and the existing industrial processes within the context of emergency dismantling and restoration efforts.

The work is dedicated to the solution of relevant scientific and applied issue - increasing the efficiency of production projects development for the dismantling and demolition of old buildings. The shown issue of demolition (dismantling) of buildings and structures is a multidimensional, multifaceted, multifunctional, and interdisciplinary task. The process of old buildings demolition f requires the efforts and coordination of many specialists from different fields of knowledge and professions. One aspect of the issue is the design of efficient and safe work production technologies. The authors of publications on the topic of the research provide various examples and arguments for the use of various demolition methods and justify their advantages. These examples of practical experience of various methods application are mostly single particular cases, without generalizations, and the results are not embodied in the concrete finished documents and are of little use in practice at project development of works. All that is needed is to equip the developers with typical technological solutions (schemes) in conjunction with digital technologies for systematisation according to certain features and automated search in case of transfer for their reuse and which were clear and convincing for both parties (Customer and developer). The purpose of the article: typification and systematization of technical solutions (schemes) for the works’ production on dismantling and destruction of structures and digitalization for the process of work production project development. The object of research: a selection of the main technical solutions in the implementation of dismantling objects. To realize the given goal, the following tasks were solved: An electronic database of Work production project documentation was created from the implemented projects of dismantling (demolition) of buildings and structures. The sample population included more than 30 buildings and structures of industrial and civil purpose decommissioned and dismantled (demolished) over the past 7 years in Dnipropetrovsk and adjacent regions. An analysis of the technical solutions (schemes) for the production of works included in the projects was carried out and the most important (key) factors of the object and the surroundings, which condition the technical solutions for the buildings and structures dismantling, were determined. The series (limits) of changes in the numerical values of key factors, as well as the relative frequency (repeatability) of making those production decisions in the total volume of the sample population were obtained. On the basis of groups of key factors, a system of documentation and review (search) was created based on key features of technical solutions, production schemes for dismantling buildings and structures. Results. The research allowed us to proceed to typification of the most recurrent technical solutions and to digitalization of the Work production project development process, maximally using typical work production schemes (drawings, specifications, information) for reuse. Using a digitized base of typical technical solutions for reuse and digital technologies of systematization, review and transfer of work production schemes, it is aimed at significantly reducing the time of development of Work production project and their implementation with minimal expenditure of time and resources.

The work explores the current direction of project activity, aimed at the developing territories and transforming land (real estate) into a new uses (development). The purpose of the article: to show real estate development as continuous changes (reconstruction, new development) of the environment to meet the society's needs as well as the developer role in the development of territories and the main features that define the concept of a developer. Results: Development stages, the tasks of the developer and his position in relation to other participants and the results of development, as well as professional competencies of the developer at the stages of real estate building, which are important for development tasks, were considered. It is shown that in order to perform its functions, the developer will need to build appropriate relationships with participants at all stages of real estate building. To establish communications at a professional level with all participants, general knowledge of project management or marketing will not be sufficient. The land acquisition procedure, the “technical part” of the tender documentation, pre-qualification, contract negotiations, ordering technical conditions and obtaining permits, construction (supervision) require the developer to have engineering and professional knowledge, special competencies and professional construction education. It is shown that the authors of publications on the research topic in the definition of "developer" usually indicate what the developer does at the stages of real estate object building. It is indicated, the developer-entrepreneur, receiving his profit from the real estate object building (development); the main task of the developer is to maximize the value of the object. It also indicates the scope of responsibility and functions of the developer. This work shows that the key in defining the concept is not what the developer does at all stages of real estate building, but his attitude towards the results of the project. The developer is the owner of the project, creates the development object and implements it with maximum profitability. It is shown that the features that are defining for the concept of “developer” include: authorship of an idea, concept; ownership of the land plot where the project is implemented and the real estate object; personal responsibility for achieving project results; organization of functioning; accounting, coordination and payments; receives benefits from the realization of the real estate object.

This article deals with the problem of possibilities for typification of solutions and normalization of the process of dismantling structures during the liquidation of buildings and structures. The purpose of the article is to analyze the study investigate the implemented projects of dismantling of buildings and structures and identify key factors that determine the choice of technical solutions for the work. Object of research: the main technical solutions for dismantling (demolition) of buildings and structures. Subject of research: groups of factors that determined the subject technical solutions for dismantling (demolition) of buildings and structures. To achieve this goal, the following tasks were solved: a set of objects of representatives from among the implemented projects of dismantling (demolition) of buildings and structures was formed; created an electronic database of projects for the implementation of works on the whole set of objects-representatives; analysis of technical solutions included in the projects of works and formed a set of factors that characterize the characteristics of the object and the environment of the object (site), which determine the decisions of dismantling (demolition) of buildings and structures; identified the most important (key) factors of the object and sites that determine the technical decisions of dismantling (demolition) of buildings and structures; quantitative characteristics of factors, series of changes in their values, as well as the relative frequency (repeatability) of decisions in the total sample size are determined. On the basis of groups of key factors the system of documentation and analysis of projects of dismantling (demolition) of buildings and constructions is created. The article summarizes some of the results of the study allowed to move to the typification and normalization of technological solutions, to a systematic approach in the development of standard technological schemes, forms, templates, tables of numerical data. Using a database of standard solutions and systematized project documents for re-use as possible analogues, as well as the possibility of IT-technologies, we can detail, at a good quality level, taking into account all past mistakes and changing best practices significantly reduce time and improve quality preparation of technological documentation of current and future facilities.

Problem statement. Due to the great globalisation and continuous exponential growth of megacities populations, there is a growing need to improve the quality of housing for urbanised humanity through the expansion of existing cities. Cities are constantly growing. Continuous process of renovation and old quarters transformation that do not correspond modern norms and regulations in terms of infrastructure and housing is ongoing. Under this rapid growth, problems arise and accumulate during disassembly. It is necessary for solving these problems to describe and structure them. The purpose of the article is the development of identification concept for new and typing existing problems at each disassembly stage, as well as finding their solution based on domestic and international experience presented in scientific sources. It is necessary to develop standardised algorithm for disassembly and demolition of buildings and structures. Scientific novelty. On the basis of own experience in the implementation of disassembly projects and scientific papers, an algorithm for disassembly work is developed. The most typical problems at each stage of the disassembly described.

Problem statement. The paper is devoted to the design of dismantling and disposal of buildings and structures. Demolition is considered as an exceptional measure related to urban planning and other objective circumstances, aimed at renovation and improving the efficiency of the use of territories. It is shown that the problem of renewal, transformation and strategic development of territories is a continuous process. It is associated primarily with changes in knowledge, technology, the emergence of new materials and capabilities, as well as a new understanding of the quality of the environment. Purpose of the article. Perform an analysis of literary sources on the research topic, form a systematic understanding of the accumulated knowledge in the field of dismantling and liquidation of buildings and structures, and formulate the prerequisites for further research. The object of the study is to design processes for the stage of decommissioning and liquidation of buildings and structures. Subject of study. Methodological provisions, tools and actions related to ensuring the efficiency and safety of dismantling and liquidation of buildings and structures. It is shown that all scientific work in this area can be combined into three areas: design of buildings and structures for dismantling; dismantling of buildings and structures; utilization of structures of buildings and structures. The effectiveness of designing a building for dismantling is associated, first of all, with the modeling of structural schemes of buildings that provide a high degree of transformation and deconstruction. With buildings originally designed for deconstruction, many more materials can be successfully recovered for reuse. This provides significant economic and environmental benefits. The dismantling of buildings and structures is presented in scientific publications by works on the practical application of various demolition technologies and methods. When designing technologies and making major decisions on the dismantling and destruction of building elements, special emphasis is placed on the controllability, safety and efficiency of the process. The performed research allowed to form a systematic understanding of the subject area of dismantling buildings and structures. It is shown that the problem of demolition is a multifaceted, multifunctional, interdisciplinary problem. Its solution will require the efforts and coordination of many specialists from different fields and professions. The design of the dismantling/demolition of buildings and structures will require additional research and technological capabilities of BIM. The demolition technologies and methods discussed in the publications, and their application, do not have sufficient justification. They do not provide an objective view or useful guidelines for design. They are particular examples, and regularities, as you know, are manifested in mass phenomena. According to the authors, it is necessary to continue research in terms of generalizing experience, searching for patterns, creating tools and procedures based on them to justify decision-making. It is proposed, for a better understanding of the problem and the search for opportunities to solve it: − to form a set of representative objects based on implemented projects; − to form databases on representative objects regarding the features of the objects and the characteristic features of the decisions made; − determine the most important features of the object and features of the site conditions that determine the quality of decisions made; − develop technological means of accumulating, storing and searching for relevant documents, possible alternative solutions; − propose a mechanism for comparing alternatives and choosing a final solution. The solution of these tasks will allow the development teams, the customer and all interested parties to make effective and safe decisions on the demolition and dismantling of buildings and structures promptly, most importantly, objectively, reasonably and convincingly.