Sometimes in mining, it is necessary to combine di erent extracting technologies within one enterprise. So, in this paper, the analysis of scienti c and technical mining operations with combined technologies is carried out, and the search for structure and their operation in the mining enterprise is performed. The processes and technological parameters of mineral extraction by two fundamentally di erent technologies are investigated in detail. Due to the introduction of additional technologies, it is possible to involve sub-standard reserves in the production process, and an algorithm for determining the technological parameters is developed. This algorithm consists of criteria that make it possible to nd compatibility in the work of one or more development technologies while maintaining an e ective level of extraction. To do this, all processes at the enterprise are grouped: by degree of exploration, feasibility and economic e ciency. For each of them, certain coe cients were determined on the example of the operation of two speci c combined technologies: the extraction of uranium ores and coal. For each group of criteria, certain coe cients are identi ed that allow assessing the feasibility of applying technology in their area. Their product is a general coe cient of compatibility, which shows the feasibility of introducing additional technology at the enterprise with the feasibility study. It de nes the amount of funds invested in the development of an enterprise to achieve e cient mineral extraction with combined technologies within one enterprise. This point can be used to predict the grade variability of stockpiles from the origin source and the methodology allows characterizing the iron grades within stockpiles without any extra sampling.

Analysis of scientific publications of recent years has shown the need to further study the development of man-made mineral deposits in Ukraine. The main reasons for development of man-made deposits were considered, and the basic requirements for mining man-made deposits were formed, including: efficiency increase of mining operations; reduction of negative environmental impact on the region and restoration of land after industrial activity. Technology that made it possible to group dumps based on their formation is analyzed, which allowed to form clusters. They allow to determine the optimal technology for the development of man-made deposits based on the type of minerals to be extracted and the method of its formation. As a result of the study, the algorithm of making decision on the choice of optimal technology for the development of man-made deposits based on graphical data was developed, taking into account the type of minerals to be extracted, depending on the structure of the deposit and the specific features of its formation.

Purpose. The purpose of the paper is to search for and choose optimal technologies of developing technogenic deposits.Methods. To achieve the aim, the analysis of selecting the deposit development technologies is used taking into account the type of minerals depending on the structure of deposits and specifics of its formation.Findings. The sources of dump formation in Ukraine are defined, grouped and separated by percentage. Possible mining technology of technogenic deposits development and recent scientific research into their development are considered. From the list of leaching methods, the most perspective ways of minerals extraction from dumps are selected. Using cluster analysis method, the graphic solution for the choice of optimal method to develop technogenic fields is obtained considering the type of mineral that is planned to be produced, depending on the structure of deposit and specifics of its formation.Originality. Originality consists in the choice of ways of developing technogenic deposits and their elaboration. Optimal mining methods are determined by cluster analysis. Practical implications.With the graphic solution, it is possible to choose optimal technology to develop technogenic deposits considering the type of mineral that is planned to be developed and depending on the structure of deposits and specifics of their formation. Keywords: technogenic deposits, methods of development, minerals extraction, classification of deposits, production wastes ВСТУПТехногенні родовища, які утворюються в резуль-таті роботи гірничодобувних підприємств і збагачу-вальних фабрик, -це перспективні джерела сирови-ни, що вже давно привертали увагу як інвесторів, так і науковців. Але завжди виникала певна складність роботи з ними з деяких причин, основною з яких є наукоємність. Проте перспективність впровадження технологій переробки не викликає сумнівів і полягає в отриманні додаткової сировини з відходів вироб-ництва за рахунок вилучення максимально можливої корисної копалини.Щоб окреслити область досліджень потрібно ро-зуміти теперішній стан речей. Тому було визначено розподіл залишків виробництва: близько 20% зали-шків захоронюється; 40 -50% -використовується для відсипання низин, пустот, доріг; частина порід, що використовується в будівництві, сягає 10%; реальна частина техногенних родовищ, яка зараз повторно використовується, не перевищує 20%; 30% -не розподілені, а отже потребують визначен-ня способів розробки.Постановка проблеми. В останні 20 -25 років оцінка результатів діяльності гірничодобувної про-мисловості, з точки зору розробки техногенних родо-вищ, привертає увагу вчених. Це пов'язано не тільки зі зростанням цінності земельних ділянок на терито-рії України й комплексного забруднення навколиш-нього середовища, а й розробки нових підходів до використання та переробки накопичених роками техногенних родовищ. Як відомо, Україна має велику кількість родючих земель, а подібні родовища за-ймають певну територію сільськогосподарських угідь та інших ділянок земель, які можна і потрібно вико-

The use of similarity theorems for simulation of the technological process of mineral extraction is considered. The list of parameters that significantly influence the process of underground leaching of minerals is defined. Using these parameters and fundamental laws of physics and chemistry, mathematical functions are determined to describe the processes’ behaviour under these conditions. The obtained mathematical functions make it possible to develop a computer model of polymetallic ores leaching. This allows for the prediction of the volume of extracted concentrate with minerals from the ore mass with the associated compounds. The obtained results of calculations showed a change in the volume of minerals extracted from the rock mass depending on the mass of the working agent, the volume of leached ore and the solvent percolation rate. The results of the research can be used at mining enterprises to extract polymetallic ores by underground leaching. Also, they allow for the estimation of the economic issues from mining the ore reserves.

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