Frolov, A. A. та Zhukovа, N. I. та Lytvynchuk, I. D. та Beltek, M. I. та Lukomskyi, V. R. (2022) ESTABLISHMENT OF REGULARITIES OF FLUVIOGLACIAL DEPOSITS AND PROBLEMS OF THEIR EXTRACTION IN THE DEVELOPMENT OF ROCK DEPOSITS OF BUILDING MATERIALS. UNIVERSITAS Publishing. с. 606-636.

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English abstract

The subject of research in the presented scientific work are the patterns of distribution and features of fluvioglacial deposits on the territory of Ukraine, as well as possible technological schemes and equipment complexes for extraction of fluvioglacial deposits. Methodology. To solve these problems was used a comprehensive approach, which consists of: analysis and generalization of previous research in the field of studying the peculiarities of occurrence of fluvioglacial deposits, as well as the effectiveness of using technological complexes for the extraction of gravel-sand mass; technological substantiation of the offered scientific decisions; analytical calculation of the productivity of the technological complex depending on the size of the rock mass. The aim of the research is to substantiate the expediency and efficiency of using the proposed bulldozer-excavator-automobile complex with the use of ripperbulldozers to remove the overburden layer of fluvioglacial deposits in rock deposits. Results of the research. Based on the current state of mining operations and the availability of the existing equipment in the quarries of Sosnivsky and Yaroshivsky deposits for the removal of the layer of fluvioglacial deposits, the use of a combined bulldozer-excavator-automobile complex is recommended. Depending on the size of the work area, there are two options. In the first case, it is proposed to use a hydraulic excavator with a backhoe, placed on the covering of overburden. In the second version of the excavator type «straight shovel» is located below the working horizon and is loaded with gravel-sand mass, which is dumped by a bulldozer. Empirical and graphical dependence of the variable productivity of the excavator on the average size of a piece of gravel-sand mass for the quarry conditions of the Sosnivsky deposit is obtained. It is established that within the limits of change of size of gravel-soil materials from 20 to 120 mm, productivity of excavators decreases 1,43 times: for the return shovel from 624,1 m3 /shift to 436,2 m3 /shift; for straight shovel from 728,1 m3 /shift to 508,8 m3 /shift. In general, the productivity of the excavator with a straight shovel is 17% higher than the productivity of the backhoe

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