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Information × Registration Number 0220U103112, 0119U102715 , R & D reports Title Instrumental survey of the state of fastening of the workings network between the drainage drainage and drainage chamber. Comprehensive instrumental examination of the affected area of anchorage, fixed space and adjacent rock massif of the drainage chamber Drainage mine. popup.stage_title Head Chepurny Volodymyr I, Registration Date 31-07-2020 Organization Kryvyi Rih National University popup.description2  The rock mass adjacent to the network of workings is stable, according to the results of measuring the strength of concrete fastening concrete strength corresponds to the design values except for leaching sites. In places of leaching the strength of concrete is reduced. Due to the man-made impact of seismic oscillations from mass explosions during iron ore mining, there are local violations of the concrete fastening. Product Description popup.authors Lyash Serhiy I popup.nrat_date 2020-10-01 Close