Державний Вищий Навчальний Заклад "Криворізький Національний Університет"
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Devices Affording Protection Of Roads Or Walls For Sound Insulation
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Abstract
A method of development of inclined and steeply-dipping mineral deposits by chamber systems includes a separation of a block into chamber reserves, interchamber pillars and ceiling, preparatory and cutting workings, processing of ore reserves in chamber and interchamber pillar, alternate breaking and drawing of bottom reserves on a catching horizon with falling of rocks into the chamber. The ceiling has trapezoidal form, a compensation cavity is formed for mass fall of the bottom due to the slope of rocks. The planes of the bottom and planes of rocks of footwall with dimensions that are regulated by parameters of the bottom, the coefficient of loosening of mineral and rock slope, and are determined by dependence.
UAU201511201U2015-11-132015-11-13A method of development of inclined and steeply-dipping mineral deposits by chamber systems
UA106516U
(en)