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Information × Registration Number 0219U100995, 0117U003664 , R & D reports Title Grant of scientific and technical help, implementation of researches and development of technical decisions in relation to the safe working off coal beds, on a gor, in mining and geological conditions of mines of "Dobropolska", "Almazna" to Limit liability company "DTEK Dobropolyeugol" in 2017 - 2018 popup.stage_title Head Minieiev Serhii P., Доктор технічних наук Registration Date 02-05-2019 Organization Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine popup.description2 As a result of the work, the technical documentation for mining the excavation sites and the mine workings of the PSS "DobropolskoeMineGroup" were analyzed. Recommendations were developed for ensuring gas safety of coal mining in 3 southern lavas of the southern slope of the l3 formation with the release of fresh air from the ventilation of the southern slope of the l2 of the "Dobropolska" mine to the fresh stream of air entering its airing. The calculation of the expected methane emission and the required air flow for ventilation of the excavation section 2 of the southern lava of the L1 reservoir, parameters and degassing modes of the open space with candles for the "Almazna" mine has been performed. The “Degassing project of the excavation site 2 of the southern lava of the seam l1 of the horizon 550 m of the "Almazna" mine was agreed. The required diameters of gas pipelines were calculated and an “Supplement to the project of degassing the"Dobropolska" mine” was developed. The analysis of the possibility of using pipes with a diameter of 159 mm at the end section of the degassing gas pipeline 3 of the southern lava of the southern slope of the l3 stratum of the "Dobropolska" mine was carried out. “Recommendations on ensuring endogenous fire safety when developing 2 southern lavas of the L1 stratum of the "Almazna" mine were developed. Developed "Recommendations for ensuring gas safety of the excavation section 2 of the southern lava of the L1 stratum of the "Almazna" mine when using a return air flow pattern, type 1-M". Developed "Recommendations for ensuring gas safety of work on carrying out dead-end workings 1 of the northern conveyor drift of the reservoir l1 and 3 of the southern conveyor drift of the reservoir l1 when installing their local ventilation fans in the excavation with the outgoing ventilation air of the "Almazna" mine. Product Description popup.authors popup.nrat_date 2020-04-02 Close