Mirny Polytechnic Institute (branch) of North-Eastern Federal University in Yakutsk (Mirny, Russia):

Zolotin V. G., Assistant Professor, Candidate of Engineering Sciences, e-mail: zolotin-vitalyy@rambler.ru

Successful carrying out of experimental researches of use of hydrodynamic influence on gas-dynamic hazard beds of Central region of Donets Coal Basin allowed to make a definition and substantiation of optimal parameters of method, criteria of efficiency and methods of control of mining operations' safety. Results of carrying out of experimental works for prevention of coal and gas outbursts were analyzed during the development workings. This analysis has shown that coefficient of outburst hazard of coal bed by  1.5-2 times is decreased with the ratio of duration of layer destruction of coal and methane blocking time, equal to 0.67. According to this, there is made a conclusion that this decreasing depends directly from amount of hydrodynamic influence cycles. Process of hydrodynamic influence was estimated by outburst hazard forecasting, according to amplitude-frequency characteristics of acoustic signal, which is caused in rock massif by technological influence of winning and sinking machines and mechanisms on coal bed. Efficiency of application of this method is characterized both by decreasing of outburst hazard coefficient to the value of Kv < 3, and by standard coal extraction indicator. 

1. Agafonov A. V. Nauchnoe obosnovanie tekhnologiy effektivnogo i bezopasnogo provedeniya podgotovitelnykh vyrabotok po vybrosoopasnym ugolnym plastam: dissertatsiya ... doktora tekhnicheskikh nauk (Scientific explanation of technologies of efficient and safe development workings on outburst-prone coal beds: Dissertation ... of Doctor of Engineering Sciences). Makeevka, 2001, 290 p.
2. Mkhatvari T. Ya., Timofeev E. I., Churadze M. V. Statistika primeneniya sposobov predotvrashcheniya vnezapnykh vybrosov uglya i gaza v usloviyakh restrukturizatsii otrasli: sbornik nauchnykh trudov Gosudarstvennogo Makeevskogo Nauchno-Issledovatelskogo Instituta po Bezopasnosti Rabot v Gornoy Promyshlennosti (Statistics of application of methods of prevention of coal and gas outbursts in conditions of restructuring of industries : collection of scientific proceedings of State Makeevka Scientific-Research Institute on Safety of Works in Mining Industry). Makeevka-Donbass, 2002, pp. 57–62.
3. Malyshev Yu. N., Ayruni A. T., Khudin Yu. L., Bolshinskiy M. I. Metody prognoza i sposoby predotvrashcheniya vybrosov gaza, uglya i porody (Forecast methods and ways of prevention of gas, coal and rock outbursts). Moscow : Nedra, 1995, 352 p.
4. Bulat A. F., Sofiyskiy K. K., Silin D. P. et al. Gidrodinamicheskoe vozdeystvie na gazonasyshchennye ugolnye plasty (Hydrodynamic influence on gas-saturated coal beds). Dnepropetrovsk, 2003, 220 p.
5. Pravila vedeniya gornykh rabot na plastakh, sklonnykh k gazodinamicheskim yavleniyam (SOU 10.1.00174088.011-2005) (Regulations of carrying out of mining operations on beds, inclined to gas dynamic phenomena (Standard of Ukrainian Companies 10.1.00174088.011-2005)). Kiev : Ministry of Coal Industry of Ukraine, 2005, 224 p.
6. Rukovodstvo po primeneniyu na shakhtakh Donbassa sposoba kontrolya vybrosoopasnosti prizaboynoy chasti massiva v podgotovitelnykh vyrabotkakh po parametram akusticheskogo signala (Regulations of use of method of control of outburst hazard of massif's face part in development workings at Donbass mines, according to acoustic signal parameters). Makeevka, 1996, 9 p.
7. Rukovodstvo po primeneniyu na shakhtakh Donbassa sposoba opredeleniya velichiny zony razgruzki prizaboynoy chasti vybrosoopasnogo ugolnogo plasta (Regulations of use of method of definition of size of discharge area of face part of outburst-prone coal bed at Donbass mines). Makeevka, 1994, 6 p.
8. Prognoz dinamicheskikh proyavleniy gornogo davleniya po aktivnosti akusticheskoy emissii (KD. 12.10.05.101– 99) : Metodika (Forecast of dynamic occurrences of rock pressure, according to acoustic emission activity (KD. 12.10.05.101–99) : Methodology). Gorlovka : Donetsk Scioentific-Research Institute, 1999, 21 p.
9. Kolchin G. I., Bokiy B. V., Zolotin V. G. et al. Seysmoakusticheskiy kontrol protsessa gidrodinamicheskogo vozdeystviya pri provedenii podgotovitelnykh vyrabotok : sbornik nauchnykh trudov Instituta Geotekhnicheskoy Mekhaniki Natsionalnoy Akademii Nauk Ukrainy : «Geotekhnicheskaya mekhanika» (Seismic-acoustic control of process of hydrodynamic impact during the development workings : collection of scientific proceedings of Institute of Geotechnical Mechanics of National Academy of Sciences of Ukraine : "Geotechnical mechanics"). Dnepropetrovsk, 2004, Iss. 49, pp. 49–55.
10. Sofiyskiy K. K, Silin D. P., Zolotin V. G. et al. Effektivnost primeneniya gidrodinamicheskogo vozdeystviya pri provedenii gornykh rabot v slozhnykh gorno-geologicheskikh usloviyakh : sbornik nauchnykh trudov Instituta Geotekhnicheskoy Mekhaniki Natsionalnoy Akademii Nauk Ukrainy : «Geotekhnicheskaya mekhanika» (Efficiency of application of hydrodynamic influence in the time of mine operations in complex mining-geological conditions : collections of scientific proceedings of Institute of Geotechnical Mechanics of National Academy of Sciences of Ukraine : "Geotechnical mechanics"). Dnepropetrovsk, 2004, Iss. 48, pp. 163–171.
11. Bokiy B. V., Kolchin G. I., Zolotin V. G. et al. Povyshenie bezopasnosti gornykh rabot pri provedenii podgotovitelnykh vyrabotok (Increasing of safety of mining operations in the time of development workings). Fizika impulsnykh razryadov v kondensirovannykh sredakh : Mezhdunarodnaya nauchnaya shkola-seminar (Physics of pulse discharges in condensed mediums : International scientific school-seminar). Mykolayiv, 2007, pp. 175–176.
12. K. K. Sofіyskiy, D. M. Zhitlonok, V. G. Zolotіn et al. Sposіb vedennya gіrnichikh robіt na plastakh, skhilnikh do gazodinamіchnikh yavishch (Method of carrying out of mining operations on the beds, inclined to gas-dynamic phenomena). Patent Ukraine, No. 445753, MPK (2009) Е 21 F 5/00. Ukraine. u 200905728. Applied: June 04, 2009. Published: November 25, 2009. Bulletin No. 22.