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Information × Registration Number 0220U102745, 0120U002192 , R & D reports Title Development of a physico-mathematical model of rock boulder rolling from a rock slope over 30 meters high popup.stage_title Head Nesmashnyi Yevhen O, Доктор технічних наук Registration Date 22-05-2020 Organization Kryvyi Rih National University popup.description2  The object of research is the processes of falling of rock fragments from above-lying horizons on the transport berms of the quarry № 4 PJSC "TsGZK". The purpose of the work is to calculate the probable radius of falling of rock fragments from a rock slope over 30 m high. Research method - analytical calculations based on the created physical and mathematical model of rolling or sliding of rock fragments over the simple or complex slope profiles. The study and analytical calculations revealed thatin terms of the existing geometric parameters of the ledges, groups of quarry ledges of the №4 PJSC "TsGOK", the rate of fall of rock fragments on the horizons of transport berms is expected within 0 ÷ 34 m / s, kinetic energy 0 ÷ 12000 kJ, and the value of the radius of their spread can be expected in the range from 1.5 to 27.2 m, depending on the height of the slope, its profile, angle and the expected values ​​of the coefficients of rolling friction and sliding pieces of rock on the slope surface. OPEN MINING WORKS, FALL OF ROCK FRAGMENTS, DISTRIBUTION RADIUS OF BUTS Product Description popup.authors Gladarevska Margarita А Nesmashnyi Yevhen O Tkachenko Halyna I popup.nrat_date 2020-07-03 Close